feat(ai): LangGraph as core runtime + AI Agents/Tools console + full-demo seed

Core AI runtime
- New encoach.ai.agent + encoach.ai.tool models with M2M tool binding,
  graph topology (simple|plan_review_revise|rag|react), model + fallback,
  temperature, max_tokens, response_format, max_revisions, quality checks
  and system prompt fields.
- services/agent_runtime.py compiles a langgraph.StateGraph per agent
  and caches the build per (key, write_date). Emits a structured trace
  (output, tool_calls, retrieval_hits, revisions, quality_issues,
  ms, model_used, fallback_used) and auto-falls-back on rate-limit/5xx.
- services/agent_tools.py registers 11 tool handlers wrapping existing
  services: resources.search, rubric.fetch, outcomes.fetch,
  student.profile, quality.cefr_check, quality.ai_detect,
  quality.content_gate, course_plan.save (mutates),
  course_plan.save_materials (mutates), scoring.grade_writing,
  scoring.grade_speaking.
- 7 default agents seeded via data/agents_defaults.xml: course_planner,
  course_week_materials, exam_generator, exercise_generator, lms_tutor,
  writing_grader, speaking_grader.
- Feature flag encoach_ai.use_langgraph_runtime (default True).
- encoach_ai_course pipeline now routes through AgentRuntime when on,
  legacy SDK path kept as fallback.

Admin UI
- /admin/ai/prompts is now a tabbed Agents | Tools | Prompts console.
- AIAgentsPanel: card grid + config dialog (model/temp/graph/tools/
  system prompt) + built-in Test Runner showing live trace.
- AIToolsPanel: registry table with category badges, mutates flag,
  schema viewer, edit dialog.
- New /api/ai/agents* and /api/ai/tools* controller (list/get/update/
  test, list-tools, toggle-tool).
- Sidebar label nav.aiPrompts -> nav.aiAgents (AI Agents and Tools).
- EN + AR (RTL) translations for ~80 new keys.

Smart Wizard pages
- /admin/quick-setup hub + CourseWizard, CoursePlanWizard,
  RubricWizard, ExamStructureWizard step-by-step flows.
- /admin/course-plans list + detail pages.
- /teacher/quick-setup mirror.

Full demo seed + 8-role E2E
- seed_full_demo.py adds the 5 missing user_types (approver, corporate,
  mastercorporate, agent, developer), activates a 2-stage exam-approval
  workflow with one pending request, creates a GE1-aligned 12-week B1
  course plan with 6 detailed Week-1 materials (reading 400w, writing,
  listening 4-min script, speaking, grammar present simple vs continuous,
  vocabulary), and inserts sample ai.log + ai.feedback rows.
- reset_demo_passwords.py forces every demo login back to canonical
  passwords (admin123/teacher123/student123/approver123/corporate123/
  master123/agent123/dev123).
- e2e_full_scenario.py: 46/46 PASS read-only API smoke across all
  8 roles, including a live LangGraph round-trip on writing_grader.
- e2e_approval_chain.py: 6/6 PASS mutation E2E - approver approves
  stage 1, admin approves stage 2, linked encoach.exam.custom flips
  to status=published, verified via psql.

Docs
- docs/PROJECT_SUMMARY.md updated to 2026-04-25: new Latest events
  bullets, refreshed credentials table, full sections 22 (LangGraph
  runtime) and 23 (full demo seed + 8-role E2E).
- docs/ENCOACH_FULL_DEMO_QA_REPORT.md added with credentials,
  per-endpoint PASS/FAIL, mutation chain proof, LangGraph live output.
- backend/GE1 Course Outline_ Fall AY25-26.pdf vendored as the
  reference outline the GE1 plan/materials are aligned to.

Dependencies
- requirements.txt: langgraph>=0.2.0, langchain-core>=0.3.0.
- encoach_ai/__manifest__.py: external_dependencies updated.

Made-with: Cursor

Dockerfile

@@ -18,13 +18,25 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    # Default nginx body cap is 1 MB which causes HTTP 413 on:
+    #   * resource uploads (PDF / audio / video)
+    #   * /api/exam/generation/submit (whole exam with generated questions)
+    #   * /api/approval-requests (attachments)
+    # Match Odoo's raised limit in odoo-docker.conf (128 MB).
+    client_max_body_size 128m;
+    client_body_buffer_size 1m;
+
     location /api/ {
         proxy_pass         http://backend:8069/api/;
         proxy_set_header   Host              $host;
         proxy_set_header   X-Real-IP         $remote_addr;
         proxy_set_header   X-Forwarded-For   $proxy_add_x_forwarded_for;
         proxy_set_header   X-Forwarded-Proto $scheme;
-        proxy_read_timeout 300s;
+        # OpenAI streaming calls + multi-module AI generation can run >3 min.
+        # Keep read/send timeouts above Odoo's limit_time_real (900s).
+        proxy_read_timeout 900s;
+        proxy_send_timeout 900s;
+        proxy_request_buffering off;
     }
 
     location / {

e2e/login.spec.ts

@@ -0,0 +1,27 @@
+import { expect, test } from "@playwright/test";
+
+/**
+ * Smoke test: the app loads, serves the login page, and the main form
+ * controls are present and reachable. We deliberately avoid hitting the
+ * real backend — this is a lightweight sanity check that catches broken
+ * routing / bundle / asset problems before they reach production.
+ */
+test("login page renders the sign-in form", async ({ page }) => {
+  await page.goto("/login");
+  await expect(
+    page.getByRole("heading", { name: /sign in|login|welcome/i }),
+  ).toBeVisible({ timeout: 10_000 });
+
+  const email = page.getByLabel(/email/i);
+  const password = page.getByLabel(/password/i);
+  await expect(email).toBeVisible();
+  await expect(password).toBeVisible();
+
+  await expect(page.getByRole("button", { name: /sign in|log in/i })).toBeVisible();
+});
+
+test("root redirects to login for anonymous users", async ({ page }) => {
+  const response = await page.goto("/");
+  expect(response?.ok()).toBeTruthy();
+  await page.waitForURL(/\/login/i, { timeout: 10_000 });
+});

index.html

@@ -6,12 +6,18 @@
     <title>EnCoach — IELTS & English Learning Platform</title>
     <meta name="description" content="EnCoach is a comprehensive IELTS and English learning platform for students, teachers, and corporates." />
     <meta name="author" content="EnCoach" />
+    <link rel="icon" type="image/x-icon" href="/favicon.ico" />
+    <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />
+    <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/apple-touch-icon.png" />
+    <meta name="theme-color" content="#4A4068" />
     <meta property="og:title" content="EnCoach — IELTS & English Learning Platform" />
     <meta property="og:description" content="Comprehensive IELTS preparation and English learning platform." />
+    <meta property="og:image" content="/logo-icon.png" />
     <meta property="og:type" content="website" />
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
-    <link href="https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet" />
+    <link href="https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800&family=DM+Sans:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet" />
   </head>
   <body>
     <div id="root"></div>

package-lock.json

@@ -42,6 +42,8 @@
         "cmdk": "^1.1.1",
         "date-fns": "^3.6.0",
         "embla-carousel-react": "^8.6.0",
+        "i18next": "^26.0.6",
+        "i18next-browser-languagedetector": "^8.2.1",
         "input-otp": "^1.4.2",
         "lucide-react": "^0.462.0",
         "next-themes": "^0.3.0",
@@ -49,6 +51,7 @@
         "react-day-picker": "^8.10.1",
         "react-dom": "^18.3.1",
         "react-hook-form": "^7.61.1",
+        "react-i18next": "^17.0.4",
         "react-resizable-panels": "^2.1.9",
         "react-router-dom": "^6.30.1",
         "recharts": "^2.15.4",
@@ -60,6 +63,7 @@
       },
       "devDependencies": {
         "@eslint/js": "^9.32.0",
+        "@playwright/test": "^1.59.1",
         "@tailwindcss/typography": "^0.5.16",
         "@testing-library/jest-dom": "^6.6.0",
         "@testing-library/react": "^16.0.0",
@@ -76,6 +80,7 @@
         "lovable-tagger": "^1.1.13",
         "postcss": "^8.5.6",
         "tailwindcss": "^3.4.17",
+        "tailwindcss-rtl": "^0.9.0",
         "typescript": "^5.8.3",
         "typescript-eslint": "^8.38.0",
         "vite": "^5.4.19",
@@ -905,6 +910,22 @@
         "node": ">= 8"
       }
     },
+    "node_modules/@playwright/test": {
+      "version": "1.59.1",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.59.1.tgz",
+      "integrity": "sha512-PG6q63nQg5c9rIi4/Z5lR5IVF7yU5MqmKaPOe0HSc0O2cX1fPi96sUQu5j7eo4gKCkB2AnNGoWt7y4/Xx3Kcqg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright": "1.59.1"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@radix-ui/number": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@radix-ui/number/-/number-1.1.1.tgz",
@@ -5480,6 +5501,15 @@
         "node": ">=12"
       }
     },
+    "node_modules/html-parse-stringify": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/html-parse-stringify/-/html-parse-stringify-3.0.1.tgz",
+      "integrity": "sha512-KknJ50kTInJ7qIScF3jeaFRpMpE8/lfiTdzf/twXyPBLAGrLRTmkz3AdTnKeh40X8k9L2fdYwEp/42WGXIRGcg==",
+      "license": "MIT",
+      "dependencies": {
+        "void-elements": "3.1.0"
+      }
+    },
     "node_modules/http-proxy-agent": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-5.0.0.tgz",
@@ -5509,6 +5539,46 @@
         "node": ">= 6"
       }
     },
+    "node_modules/i18next": {
+      "version": "26.0.6",
+      "resolved": "https://registry.npmjs.org/i18next/-/i18next-26.0.6.tgz",
+      "integrity": "sha512-A4U6eCXodIbrhf8EarRurB9/4ebyaurH4+fu4gig9bqxmpSt+fCAFm/GpRQDcN1Xzu/LdFCx4nYHsnM1edIIbg==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://www.locize.com/i18next"
+        },
+        {
+          "type": "individual",
+          "url": "https://www.i18next.com/how-to/faq#i18next-is-awesome.-how-can-i-support-the-project"
+        },
+        {
+          "type": "individual",
+          "url": "https://www.locize.com"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.29.2"
+      },
+      "peerDependencies": {
+        "typescript": "^5 || ^6"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/i18next-browser-languagedetector": {
+      "version": "8.2.1",
+      "resolved": "https://registry.npmjs.org/i18next-browser-languagedetector/-/i18next-browser-languagedetector-8.2.1.tgz",
+      "integrity": "sha512-bZg8+4bdmaOiApD7N7BPT9W8MLZG+nPTOFlLiJiT8uzKXFjhxw4v2ierCXOwB5sFDMtuA5G4kgYZ0AznZxQ/cw==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.23.2"
+      }
+    },
     "node_modules/iconv-lite": {
       "version": "0.6.3",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
@@ -6215,6 +6285,53 @@
         "node": ">= 6"
       }
     },
+    "node_modules/playwright": {
+      "version": "1.59.1",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.59.1.tgz",
+      "integrity": "sha512-C8oWjPR3F81yljW9o5OxcWzfh6avkVwDD2VYdwIGqTkl+OGFISgypqzfu7dOe4QNLL2aqcWBmI3PMtLIK233lw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright-core": "1.59.1"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "fsevents": "2.3.2"
+      }
+    },
+    "node_modules/playwright-core": {
+      "version": "1.59.1",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.59.1.tgz",
+      "integrity": "sha512-HBV/RJg81z5BiiZ9yPzIiClYV/QMsDCKUyogwH9p3MCP6IYjUFu/MActgYAvK0oWyV9NlwM3GLBjADyWgydVyg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "playwright-core": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/playwright/node_modules/fsevents": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
+      "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
+      }
+    },
     "node_modules/postcss": {
       "version": "8.5.9",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.9.tgz",
@@ -6547,6 +6664,33 @@
         "react": "^16.8.0 || ^17 || ^18 || ^19"
       }
     },
+    "node_modules/react-i18next": {
+      "version": "17.0.4",
+      "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-17.0.4.tgz",
+      "integrity": "sha512-hQipmK4EF0y6RO6tt6WuqnmWpWYEXmQUUzecmMBuNsIgYd3smXcG4GtYPWhvgxn0pqMOItKlEO8H24HCs5hc3g==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.29.2",
+        "html-parse-stringify": "^3.0.1",
+        "use-sync-external-store": "^1.6.0"
+      },
+      "peerDependencies": {
+        "i18next": ">= 26.0.1",
+        "react": ">= 16.8.0",
+        "typescript": "^5 || ^6"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        },
+        "react-native": {
+          "optional": true
+        },
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-is": {
       "version": "17.0.2",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
@@ -7157,6 +7301,13 @@
         "tailwindcss": ">=3.0.0 || insiders"
       }
     },
+    "node_modules/tailwindcss-rtl": {
+      "version": "0.9.0",
+      "resolved": "https://registry.npmjs.org/tailwindcss-rtl/-/tailwindcss-rtl-0.9.0.tgz",
+      "integrity": "sha512-y7yC8QXjluDBEFMSX33tV6xMYrf0B3sa+tOB5JSQb6/G6laBU313a+Z+qxu55M1Qyn8tDMttjomsA8IsJD+k+w==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/tailwindcss/node_modules/postcss-selector-parser": {
       "version": "6.1.2",
       "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-6.1.2.tgz",
@@ -7369,7 +7520,7 @@
       "version": "5.9.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
-      "dev": true,
+      "devOptional": true,
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
@@ -8164,6 +8315,15 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/void-elements": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-3.1.0.tgz",
+      "integrity": "sha512-Dhxzh5HZuiHQhbvTW9AMetFfBHDMYpo23Uo9btPXgdYP+3T5S+p+jgNy7spra+veYhBP2dCSgxR/i2Y02h5/6w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/w3c-xmlserializer": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-4.0.0.tgz",

package.json

@@ -10,7 +10,9 @@
     "lint": "eslint .",
     "preview": "vite preview",
     "test": "vitest run",
-    "test:watch": "vitest"
+    "test:watch": "vitest",
+    "test:e2e": "playwright test",
+    "test:e2e:install": "playwright install --with-deps chromium"
   },
   "dependencies": {
     "@hookform/resolvers": "^3.10.0",
@@ -47,6 +49,8 @@
     "cmdk": "^1.1.1",
     "date-fns": "^3.6.0",
     "embla-carousel-react": "^8.6.0",
+    "i18next": "^26.0.6",
+    "i18next-browser-languagedetector": "^8.2.1",
     "input-otp": "^1.4.2",
     "lucide-react": "^0.462.0",
     "next-themes": "^0.3.0",
@@ -54,6 +58,7 @@
     "react-day-picker": "^8.10.1",
     "react-dom": "^18.3.1",
     "react-hook-form": "^7.61.1",
+    "react-i18next": "^17.0.4",
     "react-resizable-panels": "^2.1.9",
     "react-router-dom": "^6.30.1",
     "recharts": "^2.15.4",
@@ -65,9 +70,10 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.32.0",
+    "@playwright/test": "^1.59.1",
+    "@tailwindcss/typography": "^0.5.16",
     "@testing-library/jest-dom": "^6.6.0",
     "@testing-library/react": "^16.0.0",
-    "@tailwindcss/typography": "^0.5.16",
     "@types/node": "^22.16.5",
     "@types/react": "^18.3.23",
     "@types/react-dom": "^18.3.7",
@@ -81,6 +87,7 @@
     "lovable-tagger": "^1.1.13",
     "postcss": "^8.5.6",
     "tailwindcss": "^3.4.17",
+    "tailwindcss-rtl": "^0.9.0",
     "typescript": "^5.8.3",
     "typescript-eslint": "^8.38.0",
     "vite": "^5.4.19",

playwright.config.ts

@@ -0,0 +1,42 @@
+import { defineConfig, devices } from "@playwright/test";
+
+/**
+ * Playwright configuration for EnCoach frontend smoke tests.
+ *
+ * By default we run against a Vite preview server on localhost:4173. In CI
+ * this is started by the `playwright` step in .github/workflows/ci.yml after
+ * `npm run build`.
+ *
+ * Override the base URL with `PLAYWRIGHT_BASE_URL=https://... npx playwright
+ * test` to run against a deployed environment.
+ */
+const baseURL = process.env.PLAYWRIGHT_BASE_URL || "http://localhost:4173";
+
+export default defineConfig({
+  testDir: "./e2e",
+  timeout: 30_000,
+  expect: { timeout: 5_000 },
+  fullyParallel: true,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  reporter: process.env.CI ? [["github"], ["list"]] : [["list"]],
+  use: {
+    baseURL,
+    trace: "on-first-retry",
+    screenshot: "only-on-failure",
+  },
+  webServer: process.env.PLAYWRIGHT_SKIP_WEBSERVER
+    ? undefined
+    : {
+        command: "npm run preview -- --host 127.0.0.1 --port 4173",
+        url: baseURL,
+        reuseExistingServer: !process.env.CI,
+        timeout: 60_000,
+      },
+  projects: [
+    {
+      name: "chromium",
+      use: { ...devices["Desktop Chrome"] },
+    },
+  ],
+});

public/logo.svg

@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64" width="64" height="64" role="img" aria-label="EnCoach">
+  <defs>
+    <linearGradient id="eg" x1="0" y1="0" x2="1" y2="1">
+      <stop offset="0%" stop-color="#4f46e5"/>
+      <stop offset="50%" stop-color="#7c3aed"/>
+      <stop offset="100%" stop-color="#2563eb"/>
+    </linearGradient>
+  </defs>
+  <rect x="2" y="2" width="60" height="60" rx="14" fill="url(#eg)"/>
+  <path d="M20 20h22a2 2 0 0 1 2 2v4a2 2 0 0 1-2 2H26v6h14a2 2 0 0 1 2 2v4a2 2 0 0 1-2 2H26v6h16a2 2 0 0 1 2 2v4a2 2 0 0 1-2 2H20a2 2 0 0 1-2-2V22a2 2 0 0 1 2-2Z" fill="#ffffff"/>
+  <circle cx="48" cy="48" r="5" fill="#facc15" stroke="#ffffff" stroke-width="2"/>
+</svg>

src/App.tsx

@@ -1,3 +1,5 @@
+import { lazy, Suspense } from "react";
+import { ThemeProvider } from "next-themes";
 import { Toaster } from "@/components/ui/toaster";
 import { Toaster as Sonner } from "@/components/ui/sonner";
 import { TooltipProvider } from "@/components/ui/tooltip";
@@ -8,143 +10,174 @@ import ProtectedRoute from "@/components/ProtectedRoute";
 import StudentLayout from "@/components/StudentLayout";
 import TeacherLayout from "@/components/TeacherLayout";
 import AdminLmsLayout from "@/components/AdminLmsLayout";
-import Login from "@/pages/Login";
-import Register from "@/pages/Register";
-import EmailVerification from "@/pages/EmailVerification";
-import OnboardingWizard from "@/pages/OnboardingWizard";
-import ForgotPassword from "@/pages/ForgotPassword";
-import ResetPassword from "@/pages/ResetPassword";
-import ScoreVerification from "@/pages/ScoreVerification";
-// Original platform pages
-import AdminDashboard from "@/pages/AdminDashboard";
-import UsersPage from "@/pages/UsersPage";
-import EntitiesPage from "@/pages/EntitiesPage";
-import AssignmentsPage from "@/pages/AssignmentsPage";
-import ExamsListPage from "@/pages/ExamsListPage";
-import ExamStructuresPage from "@/pages/ExamStructuresPage";
-import RubricsPage from "@/pages/RubricsPage";
-import GenerationPage from "@/pages/GenerationPage";
-import ApprovalWorkflowsPage from "@/pages/ApprovalWorkflowsPage";
-import ClassroomsPage from "@/pages/ClassroomsPage";
-import StudentPerformancePage from "@/pages/StudentPerformancePage";
-import StatsCorporatePage from "@/pages/StatsCorporatePage";
-import RecordPage from "@/pages/RecordPage";
-import VocabularyPage from "@/pages/VocabularyPage";
-import GrammarPage from "@/pages/GrammarPage";
-import PaymentRecordPage from "@/pages/PaymentRecordPage";
-import TicketsPage from "@/pages/TicketsPage";
-import SettingsPage from "@/pages/SettingsPage";
-import ProfilePage from "@/pages/ProfilePage";
-import ExamPage from "@/pages/ExamPage";
-// Student pages
-import StudentDashboard from "@/pages/student/StudentDashboard";
-import StudentCourses from "@/pages/student/StudentCourses";
-import StudentCourseDetail from "@/pages/student/StudentCourseDetail";
-import StudentAssignments from "@/pages/student/StudentAssignments";
-import StudentGrades from "@/pages/student/StudentGrades";
-import StudentAttendance from "@/pages/student/StudentAttendance";
-import StudentTimetable from "@/pages/student/StudentTimetable";
-import StudentProfile from "@/pages/student/StudentProfile";
-// Adaptive learning pages
-import SubjectSelection from "@/pages/student/SubjectSelection";
-import DiagnosticTest from "@/pages/student/DiagnosticTest";
-import ProficiencyProfile from "@/pages/student/ProficiencyProfile";
-import LearningPlanPage from "@/pages/student/LearningPlan";
-import TopicLearning from "@/pages/student/TopicLearning";
-// Teacher pages
-import TeacherDashboard from "@/pages/teacher/TeacherDashboard";
-import TeacherCourses from "@/pages/teacher/TeacherCourses";
-import CourseBuilder from "@/pages/teacher/CourseBuilder";
-import TeacherAssignments from "@/pages/teacher/TeacherAssignments";
-import TeacherAssignmentDetail from "@/pages/teacher/TeacherAssignmentDetail";
-import TeacherAttendance from "@/pages/teacher/TeacherAttendance";
-import TeacherStudents from "@/pages/teacher/TeacherStudents";
-import TeacherTimetable from "@/pages/teacher/TeacherTimetable";
-import TeacherProfile from "@/pages/teacher/TeacherProfile";
-import AdaptiveSettings from "@/pages/teacher/AdaptiveSettings";
-// Admin LMS pages
-import AdminLmsDashboard from "@/pages/admin/AdminLmsDashboard";
-import AdminCourses from "@/pages/admin/AdminCourses";
-import AdminStudents from "@/pages/admin/AdminStudents";
-import AdminTeachers from "@/pages/admin/AdminTeachers";
-import AdminBatches from "@/pages/admin/AdminBatches";
-import AdminBatchDetail from "@/pages/admin/AdminBatchDetail";
-import AdminTimetable from "@/pages/admin/AdminTimetable";
-import AdminReports from "@/pages/admin/AdminReports";
-import AdminSettings from "@/pages/admin/AdminSettings";
-import AdminProfileLms from "@/pages/admin/AdminProfile";
-import TaxonomyManager from "@/pages/admin/TaxonomyManager";
-import ResourceManager from "@/pages/admin/ResourceManager";
-import AcademicYearManager from "@/pages/admin/AcademicYearManager";
-import DepartmentManager from "@/pages/admin/DepartmentManager";
-import AdmissionList from "@/pages/admin/AdmissionList";
-import AdmissionDetail from "@/pages/admin/AdmissionDetail";
-import AdmissionRegisterPage from "@/pages/admin/AdmissionRegisterPage";
-import InstitutionalExamSessions from "@/pages/admin/InstitutionalExamSessions";
-import MarksheetManager from "@/pages/admin/MarksheetManager";
-import AdminStudentLeave from "@/pages/admin/AdminStudentLeave";
-import AdminFees from "@/pages/admin/AdminFees";
-import AdminLessons from "@/pages/admin/AdminLessons";
-import AdminGradebook from "@/pages/admin/AdminGradebook";
-import AdminStudentProgress from "@/pages/admin/AdminStudentProgress";
-import AdminLibrary from "@/pages/admin/AdminLibrary";
-import AdminActivities from "@/pages/admin/AdminActivities";
-import AdminFacilities from "@/pages/admin/AdminFacilities";
-import AdmissionApplication from "@/pages/AdmissionApplication";
-import SubjectRegistrationPage from "@/pages/student/SubjectRegistrationPage";
-// Courseware pages
-import CourseChapters from "@/pages/teacher/CourseChapters";
-import ChapterDetail from "@/pages/teacher/ChapterDetail";
-import AiWorkbench from "@/pages/teacher/AiWorkbench";
-import TeacherDiscussionBoard from "@/pages/teacher/TeacherDiscussionBoard";
-import TeacherAnnouncements from "@/pages/teacher/TeacherAnnouncements";
-import StudentChapterView from "@/pages/student/StudentChapterView";
-import StudentDiscussionBoard from "@/pages/student/StudentDiscussionBoard";
-import StudentAnnouncements from "@/pages/student/StudentAnnouncements";
-import StudentMessages from "@/pages/student/StudentMessages";
-import StudentJourney from "@/pages/student/StudentJourney";
-import AiEnglishCourse from "@/pages/student/AiEnglishCourse";
-import AiIeltsCourse from "@/pages/student/AiIeltsCourse";
-import ExamSession from "@/pages/student/ExamSession";
-import ExamStatus from "@/pages/student/ExamStatus";
-import ExamResults from "@/pages/student/ExamResults";
-import GapAnalysis from "@/pages/student/GapAnalysis";
-import CourseDelivery from "@/pages/student/CourseDelivery";
-import GradingQueue from "@/pages/admin/GradingQueue";
-import CourseConfig from "@/pages/admin/CourseConfig";
-import ModuleBuilder from "@/pages/admin/ModuleBuilder";
-import CourseProgress from "@/pages/teacher/CourseProgress";
-import PlacementBriefing from "@/pages/student/PlacementBriefing";
-import PlacementTest from "@/pages/student/PlacementTest";
-import PlacementResults from "@/pages/student/PlacementResults";
-import PlacementAccess from "@/pages/student/PlacementAccess";
-import FaqManager from "@/pages/admin/FaqManager";
-import NotificationRules from "@/pages/admin/NotificationRules";
-import ApprovalWorkflowConfig from "@/pages/admin/ApprovalWorkflowConfig";
-import RolesPermissions from "@/pages/admin/RolesPermissions";
-import AuthorityMatrix from "@/pages/admin/AuthorityMatrix";
-import UserRoles from "@/pages/admin/UserRoles";
-import BulkStudentUpload from "@/pages/admin/BulkStudentUpload";
-import CredentialDashboard from "@/pages/admin/CredentialDashboard";
-import AiEnglishQuality from "@/pages/admin/AiEnglishQuality";
-import AiEnglishTaxonomy from "@/pages/admin/AiEnglishTaxonomy";
-import AiIeltsValidation from "@/pages/admin/AiIeltsValidation";
-import AdaptiveDashboard from "@/pages/admin/AdaptiveDashboard";
-import AdaptiveStudentDetail from "@/pages/admin/AdaptiveStudentDetail";
-import LevelMappingConfig from "@/pages/admin/LevelMappingConfig";
-import WhiteLabelBranding from "@/pages/admin/WhiteLabelBranding";
-import ScoreApprovalQueue from "@/pages/admin/ScoreApprovalQueue";
-import ExamTemplateSelection from "@/pages/admin/ExamTemplateSelection";
-import IeltsExamCreate from "@/pages/admin/IeltsExamCreate";
-import IeltsSkillConfig from "@/pages/admin/IeltsSkillConfig";
-import IeltsContentPool from "@/pages/admin/IeltsContentPool";
-import IeltsExamValidation from "@/pages/admin/IeltsExamValidation";
-import CustomExamCreate from "@/pages/admin/CustomExamCreate";
-import OfficialExamAccess from "@/pages/OfficialExamAccess";
-import FaqPage from "@/pages/FaqPage";
-import NotFound from "@/pages/NotFound";
 import { queryClient } from "@/lib/query-client";
 import { Button } from "@/components/ui/button";
+import { ErrorBoundary } from "@/components/ErrorBoundary";
+
+// -----------------------------------------------------------------------------
+// Lazy-loaded route pages
+// -----------------------------------------------------------------------------
+// Keeping the initial bundle small matters on slow networks / modest hardware
+// (many teachers/students open the app from school Wi-Fi). Each page below is
+// split into its own chunk and only fetched when the user hits the matching
+// route. The shell (layouts, providers, router) is still eagerly imported so
+// the first paint stays snappy.
+
+// Auth
+const Login = lazy(() => import("@/pages/Login"));
+const Register = lazy(() => import("@/pages/Register"));
+const EmailVerification = lazy(() => import("@/pages/EmailVerification"));
+const OnboardingWizard = lazy(() => import("@/pages/OnboardingWizard"));
+const ForgotPassword = lazy(() => import("@/pages/ForgotPassword"));
+const ResetPassword = lazy(() => import("@/pages/ResetPassword"));
+const ScoreVerification = lazy(() => import("@/pages/ScoreVerification"));
+
+// Original platform pages
+const AdminDashboard = lazy(() => import("@/pages/AdminDashboard"));
+const UsersPage = lazy(() => import("@/pages/UsersPage"));
+const EntitiesPage = lazy(() => import("@/pages/EntitiesPage"));
+const AssignmentsPage = lazy(() => import("@/pages/AssignmentsPage"));
+const ExamsListPage = lazy(() => import("@/pages/ExamsListPage"));
+const ExamStructuresPage = lazy(() => import("@/pages/ExamStructuresPage"));
+const RubricsPage = lazy(() => import("@/pages/RubricsPage"));
+const GenerationPage = lazy(() => import("@/pages/GenerationPage"));
+const ApprovalWorkflowsPage = lazy(() => import("@/pages/ApprovalWorkflowsPage"));
+const ClassroomsPage = lazy(() => import("@/pages/ClassroomsPage"));
+const StudentPerformancePage = lazy(() => import("@/pages/StudentPerformancePage"));
+const StatsCorporatePage = lazy(() => import("@/pages/StatsCorporatePage"));
+const RecordPage = lazy(() => import("@/pages/RecordPage"));
+const VocabularyPage = lazy(() => import("@/pages/VocabularyPage"));
+const GrammarPage = lazy(() => import("@/pages/GrammarPage"));
+const PaymentRecordPage = lazy(() => import("@/pages/PaymentRecordPage"));
+const TicketsPage = lazy(() => import("@/pages/TicketsPage"));
+const SettingsPage = lazy(() => import("@/pages/SettingsPage"));
+
+// Student pages
+const StudentDashboard = lazy(() => import("@/pages/student/StudentDashboard"));
+const StudentCourses = lazy(() => import("@/pages/student/StudentCourses"));
+const StudentCourseDetail = lazy(() => import("@/pages/student/StudentCourseDetail"));
+const StudentAssignments = lazy(() => import("@/pages/student/StudentAssignments"));
+const StudentGrades = lazy(() => import("@/pages/student/StudentGrades"));
+const StudentAttendance = lazy(() => import("@/pages/student/StudentAttendance"));
+const StudentTimetable = lazy(() => import("@/pages/student/StudentTimetable"));
+const StudentProfile = lazy(() => import("@/pages/student/StudentProfile"));
+
+// Adaptive learning pages
+const SubjectSelection = lazy(() => import("@/pages/student/SubjectSelection"));
+const DiagnosticTest = lazy(() => import("@/pages/student/DiagnosticTest"));
+const ProficiencyProfile = lazy(() => import("@/pages/student/ProficiencyProfile"));
+const LearningPlanPage = lazy(() => import("@/pages/student/LearningPlan"));
+const TopicLearning = lazy(() => import("@/pages/student/TopicLearning"));
+
+// Teacher pages
+const TeacherDashboard = lazy(() => import("@/pages/teacher/TeacherDashboard"));
+const TeacherQuickSetup = lazy(() => import("@/pages/teacher/TeacherQuickSetup"));
+const TeacherCourses = lazy(() => import("@/pages/teacher/TeacherCourses"));
+const CourseBuilder = lazy(() => import("@/pages/teacher/CourseBuilder"));
+const TeacherAssignments = lazy(() => import("@/pages/teacher/TeacherAssignments"));
+const TeacherAssignmentDetail = lazy(() => import("@/pages/teacher/TeacherAssignmentDetail"));
+const TeacherAttendance = lazy(() => import("@/pages/teacher/TeacherAttendance"));
+const TeacherStudents = lazy(() => import("@/pages/teacher/TeacherStudents"));
+const TeacherTimetable = lazy(() => import("@/pages/teacher/TeacherTimetable"));
+const TeacherProfile = lazy(() => import("@/pages/teacher/TeacherProfile"));
+const TeacherLibrary = lazy(() => import("@/pages/teacher/TeacherLibrary"));
+const AdaptiveSettings = lazy(() => import("@/pages/teacher/AdaptiveSettings"));
+
+// Admin LMS pages
+const AdminLmsDashboard = lazy(() => import("@/pages/admin/AdminLmsDashboard"));
+const AdminQuickSetup = lazy(() => import("@/pages/admin/AdminQuickSetup"));
+const SmartWizardHub = lazy(() => import("@/pages/admin/SmartWizardHub"));
+const RubricWizard = lazy(() => import("@/pages/admin/wizards/RubricWizard"));
+const ExamStructureWizard = lazy(() => import("@/pages/admin/wizards/ExamStructureWizard"));
+const CourseWizard = lazy(() => import("@/pages/admin/wizards/CourseWizard"));
+const CoursePlanWizard = lazy(() => import("@/pages/admin/wizards/CoursePlanWizard"));
+const AdminCoursePlans = lazy(() => import("@/pages/admin/AdminCoursePlans"));
+const AdminCoursePlanDetail = lazy(() => import("@/pages/admin/AdminCoursePlanDetail"));
+const AdminCourses = lazy(() => import("@/pages/admin/AdminCourses"));
+const AdminStudents = lazy(() => import("@/pages/admin/AdminStudents"));
+const AdminTeachers = lazy(() => import("@/pages/admin/AdminTeachers"));
+const AdminBatches = lazy(() => import("@/pages/admin/AdminBatches"));
+const AdminBatchDetail = lazy(() => import("@/pages/admin/AdminBatchDetail"));
+const AdminTimetable = lazy(() => import("@/pages/admin/AdminTimetable"));
+const AdminReports = lazy(() => import("@/pages/admin/AdminReports"));
+const AdminSettings = lazy(() => import("@/pages/admin/AdminSettings"));
+const AdminProfileLms = lazy(() => import("@/pages/admin/AdminProfile"));
+const TaxonomyManager = lazy(() => import("@/pages/admin/TaxonomyManager"));
+const ResourceManager = lazy(() => import("@/pages/admin/ResourceManager"));
+const AcademicYearManager = lazy(() => import("@/pages/admin/AcademicYearManager"));
+const DepartmentManager = lazy(() => import("@/pages/admin/DepartmentManager"));
+const AdmissionList = lazy(() => import("@/pages/admin/AdmissionList"));
+const AdmissionDetail = lazy(() => import("@/pages/admin/AdmissionDetail"));
+const AdmissionRegisterPage = lazy(() => import("@/pages/admin/AdmissionRegisterPage"));
+const InstitutionalExamSessions = lazy(() => import("@/pages/admin/InstitutionalExamSessions"));
+const MarksheetManager = lazy(() => import("@/pages/admin/MarksheetManager"));
+const AdminStudentLeave = lazy(() => import("@/pages/admin/AdminStudentLeave"));
+const AdminFees = lazy(() => import("@/pages/admin/AdminFees"));
+const AdminLessons = lazy(() => import("@/pages/admin/AdminLessons"));
+const AdminGradebook = lazy(() => import("@/pages/admin/AdminGradebook"));
+const AdminStudentProgress = lazy(() => import("@/pages/admin/AdminStudentProgress"));
+const AdminLibrary = lazy(() => import("@/pages/admin/AdminLibrary"));
+const AdminActivities = lazy(() => import("@/pages/admin/AdminActivities"));
+const AdminFacilities = lazy(() => import("@/pages/admin/AdminFacilities"));
+const AdmissionApplication = lazy(() => import("@/pages/AdmissionApplication"));
+const SubjectRegistrationPage = lazy(() => import("@/pages/student/SubjectRegistrationPage"));
+
+// Courseware pages
+const CourseChapters = lazy(() => import("@/pages/teacher/CourseChapters"));
+const ChapterDetail = lazy(() => import("@/pages/teacher/ChapterDetail"));
+const AiWorkbench = lazy(() => import("@/pages/teacher/AiWorkbench"));
+const TeacherDiscussionBoard = lazy(() => import("@/pages/teacher/TeacherDiscussionBoard"));
+const TeacherAnnouncements = lazy(() => import("@/pages/teacher/TeacherAnnouncements"));
+const StudentChapterView = lazy(() => import("@/pages/student/StudentChapterView"));
+const StudentDiscussionBoard = lazy(() => import("@/pages/student/StudentDiscussionBoard"));
+const StudentAnnouncements = lazy(() => import("@/pages/student/StudentAnnouncements"));
+const StudentMessages = lazy(() => import("@/pages/student/StudentMessages"));
+const StudentJourney = lazy(() => import("@/pages/student/StudentJourney"));
+const AiEnglishCourse = lazy(() => import("@/pages/student/AiEnglishCourse"));
+const AiIeltsCourse = lazy(() => import("@/pages/student/AiIeltsCourse"));
+const ExamSession = lazy(() => import("@/pages/student/ExamSession"));
+const ExamStatus = lazy(() => import("@/pages/student/ExamStatus"));
+const ExamResults = lazy(() => import("@/pages/student/ExamResults"));
+const GapAnalysis = lazy(() => import("@/pages/student/GapAnalysis"));
+const CourseDelivery = lazy(() => import("@/pages/student/CourseDelivery"));
+const GradingQueue = lazy(() => import("@/pages/admin/GradingQueue"));
+const CourseConfig = lazy(() => import("@/pages/admin/CourseConfig"));
+const ModuleBuilder = lazy(() => import("@/pages/admin/ModuleBuilder"));
+const CourseProgress = lazy(() => import("@/pages/teacher/CourseProgress"));
+const PlacementBriefing = lazy(() => import("@/pages/student/PlacementBriefing"));
+const PlacementTest = lazy(() => import("@/pages/student/PlacementTest"));
+const PlacementResults = lazy(() => import("@/pages/student/PlacementResults"));
+const PlacementAccess = lazy(() => import("@/pages/student/PlacementAccess"));
+const FaqManager = lazy(() => import("@/pages/admin/FaqManager"));
+const NotificationRules = lazy(() => import("@/pages/admin/NotificationRules"));
+const ApprovalWorkflowConfig = lazy(() => import("@/pages/admin/ApprovalWorkflowConfig"));
+const RolesPermissions = lazy(() => import("@/pages/admin/RolesPermissions"));
+const AuthorityMatrix = lazy(() => import("@/pages/admin/AuthorityMatrix"));
+const UserRoles = lazy(() => import("@/pages/admin/UserRoles"));
+const BulkStudentUpload = lazy(() => import("@/pages/admin/BulkStudentUpload"));
+const CredentialDashboard = lazy(() => import("@/pages/admin/CredentialDashboard"));
+const AiEnglishQuality = lazy(() => import("@/pages/admin/AiEnglishQuality"));
+const AiEnglishTaxonomy = lazy(() => import("@/pages/admin/AiEnglishTaxonomy"));
+const AiIeltsValidation = lazy(() => import("@/pages/admin/AiIeltsValidation"));
+const AdaptiveDashboard = lazy(() => import("@/pages/admin/AdaptiveDashboard"));
+const AdaptiveStudentDetail = lazy(() => import("@/pages/admin/AdaptiveStudentDetail"));
+const LevelMappingConfig = lazy(() => import("@/pages/admin/LevelMappingConfig"));
+const WhiteLabelBranding = lazy(() => import("@/pages/admin/WhiteLabelBranding"));
+const ScoreApprovalQueue = lazy(() => import("@/pages/admin/ScoreApprovalQueue"));
+const ExamTemplateSelection = lazy(() => import("@/pages/admin/ExamTemplateSelection"));
+const IeltsExamCreate = lazy(() => import("@/pages/admin/IeltsExamCreate"));
+const IeltsSkillConfig = lazy(() => import("@/pages/admin/IeltsSkillConfig"));
+const IeltsContentPool = lazy(() => import("@/pages/admin/IeltsContentPool"));
+const IeltsExamValidation = lazy(() => import("@/pages/admin/IeltsExamValidation"));
+const CustomExamCreate = lazy(() => import("@/pages/admin/CustomExamCreate"));
+const ExamReviewQueue = lazy(() => import("@/pages/admin/ExamReviewQueue"));
+const ExamReviewDetail = lazy(() => import("@/pages/admin/ExamReviewDetail"));
+const AIPromptEditor = lazy(() => import("@/pages/admin/AIPromptEditor"));
+const AIFeedbackTriage = lazy(() => import("@/pages/admin/AIFeedbackTriage"));
+const PrivacyCenter = lazy(() => import("@/pages/PrivacyCenter"));
+const OfficialExamAccess = lazy(() => import("@/pages/OfficialExamAccess"));
+const FaqPage = lazy(() => import("@/pages/FaqPage"));
+const NotFound = lazy(() => import("@/pages/NotFound"));
 
 function StudentSubscriptionPlaceholder() {
   const navigate = useNavigate();
@@ -156,13 +189,35 @@ function StudentSubscriptionPlaceholder() {
   );
 }
 
+function RouteFallback() {
+  return (
+    <div className="min-h-screen flex items-center justify-center">
+      <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" />
+    </div>
+  );
+}
+
 const App = () => (
+  <ErrorBoundary>
+  <ThemeProvider
+    attribute="class"
+    defaultTheme="system"
+    enableSystem
+    storageKey="encoach-theme"
+    disableTransitionOnChange
+  >
   <QueryClientProvider client={queryClient}>
     <TooltipProvider>
       <Toaster />
       <Sonner />
-      <BrowserRouter>
+      <BrowserRouter
+        future={{
+          v7_startTransition: true,
+          v7_relativeSplatPath: true,
+        }}
+      >
         <AuthProvider>
+          <Suspense fallback={<RouteFallback />}>
           <Routes>
             {/* Auth routes */}
             <Route path="/login" element={<Login />} />
@@ -197,6 +252,7 @@ const App = () => (
                 <Route path="/student/attendance" element={<StudentAttendance />} />
                 <Route path="/student/timetable" element={<StudentTimetable />} />
                 <Route path="/student/profile" element={<StudentProfile />} />
+                <Route path="/student/privacy" element={<PrivacyCenter />} />
                 <Route path="/student/subjects" element={<SubjectSelection />} />
                 <Route path="/student/diagnostic/:subjectId" element={<DiagnosticTest />} />
                 <Route path="/student/proficiency/:subjectId" element={<ProficiencyProfile />} />
@@ -220,10 +276,12 @@ const App = () => (
             </Route>
 
             {/* Teacher routes */}
-            <Route element={<ProtectedRoute allowedRoles={["teacher"]} />}>
+            <Route element={<ProtectedRoute allowedRoles={["teacher", "admin", "developer"]} />}>
               <Route element={<TeacherLayout />}>
                 <Route path="/teacher/dashboard" element={<TeacherDashboard />} />
+                <Route path="/teacher/quick-setup" element={<TeacherQuickSetup />} />
                 <Route path="/teacher/courses" element={<TeacherCourses />} />
+                <Route path="/teacher/library" element={<TeacherLibrary />} />
                 <Route path="/teacher/courses/new" element={<CourseBuilder />} />
                 <Route path="/teacher/courses/:id/edit" element={<CourseBuilder />} />
                 <Route path="/teacher/assignments" element={<TeacherAssignments />} />
@@ -231,12 +289,13 @@ const App = () => (
                 <Route path="/teacher/attendance" element={<TeacherAttendance />} />
                 <Route path="/teacher/students" element={<TeacherStudents />} />
                 <Route path="/teacher/timetable" element={<TeacherTimetable />} />
-                <Route path="/teacher/courses/:id/chapters" element={<CourseChapters />} />
+                <Route path="/teacher/courses/:courseId/chapters" element={<CourseChapters />} />
-                <Route path="/teacher/courses/:id/chapters/:chapterId" element={<ChapterDetail />} />
+                <Route path="/teacher/courses/:courseId/chapters/:chapterId" element={<ChapterDetail />} />
-                <Route path="/teacher/courses/:id/workbench" element={<AiWorkbench />} />
+                <Route path="/teacher/courses/:courseId/workbench" element={<AiWorkbench />} />
                 <Route path="/teacher/discussions" element={<TeacherDiscussionBoard />} />
                 <Route path="/teacher/announcements" element={<TeacherAnnouncements />} />
                 <Route path="/teacher/profile" element={<TeacherProfile />} />
+                <Route path="/teacher/privacy" element={<PrivacyCenter />} />
                 <Route path="/teacher/course/:courseId/progress" element={<CourseProgress />} />
                 <Route path="/teacher/adaptive/settings" element={<AdaptiveSettings />} />
               </Route>
@@ -247,6 +306,14 @@ const App = () => (
               <Route element={<AdminLmsLayout />}>
                 {/* LMS Dashboard */}
                 <Route path="/admin/dashboard" element={<AdminLmsDashboard />} />
+                <Route path="/admin/quick-setup" element={<AdminQuickSetup />} />
+                <Route path="/admin/smart-wizard" element={<SmartWizardHub />} />
+                <Route path="/admin/smart-wizard/rubric" element={<RubricWizard />} />
+                <Route path="/admin/smart-wizard/exam-structure" element={<ExamStructureWizard />} />
+                <Route path="/admin/smart-wizard/course" element={<CourseWizard />} />
+                <Route path="/admin/smart-wizard/course-plan" element={<CoursePlanWizard />} />
+                <Route path="/admin/course-plans" element={<AdminCoursePlans />} />
+                <Route path="/admin/course-plans/:planId" element={<AdminCoursePlanDetail />} />
                 {/* Original platform dashboard */}
                 <Route path="/admin/platform" element={<AdminDashboard />} />
                 {/* LMS pages */}
@@ -259,6 +326,7 @@ const App = () => (
                 <Route path="/admin/reports" element={<AdminReports />} />
                 <Route path="/admin/settings" element={<AdminSettings />} />
                 <Route path="/admin/profile" element={<AdminProfileLms />} />
+                <Route path="/admin/privacy" element={<PrivacyCenter />} />
                 {/* Original academic pages */}
                 <Route path="/admin/assignments" element={<AssignmentsPage />} />
                 <Route path="/admin/examsList" element={<ExamsListPage />} />
@@ -281,13 +349,16 @@ const App = () => (
                 <Route path="/admin/payment-record" element={<PaymentRecordPage />} />
                 <Route path="/admin/tickets" element={<TicketsPage />} />
                 <Route path="/admin/settings-platform" element={<SettingsPage />} />
-                <Route path="/admin/exam" element={<ExamPage />} />
                 <Route path="/admin/exam/create" element={<ExamTemplateSelection />} />
                 <Route path="/admin/exam/ielts/create" element={<IeltsExamCreate />} />
                 <Route path="/admin/exam/ielts/:examId/skills" element={<IeltsSkillConfig />} />
                 <Route path="/admin/exam/ielts/:examId/content" element={<IeltsContentPool />} />
                 <Route path="/admin/exam/ielts/:examId/validate" element={<IeltsExamValidation />} />
                 <Route path="/admin/exam/custom/create" element={<CustomExamCreate />} />
+                <Route path="/admin/exam/review-queue" element={<ExamReviewQueue />} />
+                <Route path="/admin/exam/review/:examId" element={<ExamReviewDetail />} />
+                <Route path="/admin/ai/prompts" element={<AIPromptEditor />} />
+                <Route path="/admin/ai/feedback" element={<AIFeedbackTriage />} />
                 <Route path="/admin/taxonomy" element={<TaxonomyManager />} />
                 <Route path="/admin/resources" element={<ResourceManager />} />
                 {/* Institutional LMS pages */}
@@ -336,10 +407,13 @@ const App = () => (
             <Route path="/dashboard/admin" element={<Navigate to="/admin/platform" replace />} />
             <Route path="*" element={<NotFound />} />
           </Routes>
+          </Suspense>
         </AuthProvider>
       </BrowserRouter>
     </TooltipProvider>
   </QueryClientProvider>
+  </ThemeProvider>
+  </ErrorBoundary>
 );
 
 export default App;

src/components/AIFeedbackButtons.tsx

@@ -0,0 +1,164 @@
+import { useEffect, useState } from "react";
+import { ThumbsDown, ThumbsUp } from "lucide-react";
+import { toast } from "sonner";
+
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Textarea } from "@/components/ui/textarea";
+import {
+  useAIFeedbackSummary,
+  useSubmitAIFeedback,
+} from "@/hooks/queries/useAIFeedback";
+import { cn } from "@/lib/utils";
+import type {
+  AIFeedbackRating,
+  AIFeedbackSubjectType,
+} from "@/types/ai-feedback";
+
+export interface AIFeedbackButtonsProps {
+  subjectType: AIFeedbackSubjectType;
+  subjectId: number;
+  promptKey?: string;
+  promptVersion?: number;
+  aiLogId?: number;
+  entityId?: number;
+  courseId?: number;
+  size?: "sm" | "md";
+  className?: string;
+}
+
+/** Thumbs up/down widget for any AI-generated artefact.
+ *
+ * Always renders the same UI regardless of whether the user has rated the
+ * artefact before — a previous rating will show as highlighted. Clicking the
+ * same button again is a no-op; clicking the opposite button updates the
+ * server-side row in place. A thumbs-down always prompts the user for a short
+ * comment (required by the backend).
+ */
+export function AIFeedbackButtons({
+  subjectType,
+  subjectId,
+  promptKey,
+  promptVersion,
+  aiLogId,
+  entityId,
+  courseId,
+  size = "sm",
+  className,
+}: AIFeedbackButtonsProps) {
+  const summary = useAIFeedbackSummary(subjectType, subjectId);
+  const submit = useSubmitAIFeedback();
+
+  const [downOpen, setDownOpen] = useState(false);
+  const [comment, setComment] = useState("");
+
+  useEffect(() => {
+    if (downOpen) {
+      setComment(summary.data?.my_comment ?? "");
+    }
+  }, [downOpen, summary.data?.my_comment]);
+
+  const myRating: AIFeedbackRating | null = summary.data?.my_rating ?? null;
+
+  const submitUp = async () => {
+    if (myRating === "up") return;
+    try {
+      await submit.mutateAsync({
+        subject_type: subjectType,
+        subject_id: subjectId,
+        rating: "up",
+        prompt_key: promptKey,
+        prompt_version: promptVersion,
+        ai_log_id: aiLogId,
+        entity_id: entityId,
+        course_id: courseId,
+      });
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "Failed to submit");
+    }
+  };
+
+  const submitDown = async () => {
+    if (!comment.trim()) {
+      toast.error("Please tell us what was wrong.");
+      return;
+    }
+    try {
+      await submit.mutateAsync({
+        subject_type: subjectType,
+        subject_id: subjectId,
+        rating: "down",
+        comment: comment.trim(),
+        prompt_key: promptKey,
+        prompt_version: promptVersion,
+        ai_log_id: aiLogId,
+        entity_id: entityId,
+        course_id: courseId,
+      });
+      setDownOpen(false);
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "Failed to submit");
+    }
+  };
+
+  const btnSize = size === "sm" ? "sm" : "default";
+  const iconCls = size === "sm" ? "h-3.5 w-3.5" : "h-4 w-4";
+
+  return (
+    <div className={cn("flex items-center gap-1", className)}>
+      <Button
+        variant={myRating === "up" ? "default" : "outline"}
+        size={btnSize}
+        onClick={submitUp}
+        disabled={submit.isPending}
+        aria-label="Thumbs up"
+      >
+        <ThumbsUp className={iconCls} />
+        <span className="ml-1 text-xs">{summary.data?.up ?? 0}</span>
+      </Button>
+      <Button
+        variant={myRating === "down" ? "default" : "outline"}
+        size={btnSize}
+        onClick={() => setDownOpen(true)}
+        disabled={submit.isPending}
+        aria-label="Thumbs down"
+      >
+        <ThumbsDown className={iconCls} />
+        <span className="ml-1 text-xs">{summary.data?.down ?? 0}</span>
+      </Button>
+
+      <Dialog open={downOpen} onOpenChange={setDownOpen}>
+        <DialogContent
+          className="max-w-md"
+          description="Tell us what was wrong so we can improve this AI output."
+        >
+          <DialogHeader>
+            <DialogTitle>What went wrong?</DialogTitle>
+          </DialogHeader>
+          <Textarea
+            value={comment}
+            onChange={(e) => setComment(e.target.value)}
+            rows={4}
+            placeholder="e.g. Wrong answer, confusing wording, off-topic…"
+          />
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setDownOpen(false)}>
+              Cancel
+            </Button>
+            <Button onClick={submitDown} disabled={submit.isPending}>
+              Submit feedback
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </div>
+  );
+}
+
+export default AIFeedbackButtons;

src/components/AdminLmsLayout.tsx

@@ -1,4 +1,5 @@
 import { Outlet, Link, useNavigate, useLocation } from "react-router-dom";
+import { Suspense } from "react";
 import { SidebarProvider, SidebarTrigger } from "@/components/ui/sidebar";
 import {
   Sidebar, SidebarContent, SidebarGroup, SidebarGroupContent,
@@ -9,6 +10,8 @@ import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "@/component
 import { NavLink } from "@/components/NavLink";
 import { useAuth } from "@/contexts/AuthContext";
 import NotificationDropdown from "@/components/NotificationDropdown";
+import { ThemeToggle } from "@/components/ThemeToggle";
+import { LanguageToggle } from "@/components/LanguageToggle";
 import AiAssistantDrawer from "@/components/ai/AiAssistantDrawer";
 import AiSearchBar from "@/components/ai/AiSearchBar";
 import { usePermissions } from "@/hooks/usePermissions";
@@ -29,115 +32,128 @@ import {
   CalendarDays, Landmark, UserPlus, ScrollText, Award,
   HelpCircle as FaqIcon, Bell, Workflow,
   CalendarOff, DollarSign, BookMarked, BarChartHorizontal, TrendingUp,
-  Library, Activity, Warehouse, UserCog,
+  Library, Activity, Warehouse, UserCog, Sparkles, Compass,
 } from "lucide-react";
 import React from "react";
+import { useTranslation } from "react-i18next";
 
 // ============= Navigation Config =============
-interface NavItem { title: string; url: string; icon: LucideIcon }
+// Items store i18n keys (`titleKey`) rather than literal strings so Arabic
+// language switches update the sidebar without the component having to
+// re-mount.
+interface NavItem { titleKey: string; url: string; icon: LucideIcon }
 
 const overviewItems: NavItem[] = [
-  { title: "Admin Dashboard", url: "/admin/dashboard", icon: LayoutDashboard },
+  { titleKey: "nav.smartWizard", url: "/admin/smart-wizard", icon: Sparkles },
-  { title: "Platform Dashboard", url: "/admin/platform", icon: BarChart3 },
+  { titleKey: "nav.adminDashboard", url: "/admin/dashboard", icon: LayoutDashboard },
+  { titleKey: "nav.platformDashboard", url: "/admin/platform", icon: BarChart3 },
 ];
 
 const lmsItems: NavItem[] = [
-  { title: "Courses", url: "/admin/courses", icon: BookOpen },
+  { titleKey: "nav.courses", url: "/admin/courses", icon: BookOpen },
-  { title: "Students", url: "/admin/students", icon: Users },
+  { titleKey: "nav.students", url: "/admin/students", icon: Users },
-  { title: "Teachers", url: "/admin/teachers", icon: GraduationCap },
+  { titleKey: "nav.teachers", url: "/admin/teachers", icon: GraduationCap },
-  { title: "Batches", url: "/admin/batches", icon: Layers },
+  { titleKey: "nav.batches", url: "/admin/batches", icon: Layers },
-  { title: "Timetable", url: "/admin/timetable", icon: Calendar },
+  { titleKey: "nav.timetable", url: "/admin/timetable", icon: Calendar },
-  { title: "Reports", url: "/admin/reports", icon: BarChart3 },
+  { titleKey: "nav.reports", url: "/admin/reports", icon: BarChart3 },
 ];
 
 const academicItems: NavItem[] = [
-  { title: "Assignments", url: "/admin/assignments", icon: ClipboardList },
+  { titleKey: "nav.assignments", url: "/admin/assignments", icon: ClipboardList },
-  { title: "Exams List", url: "/admin/examsList", icon: FileText },
+  { titleKey: "nav.examsList", url: "/admin/examsList", icon: FileText },
-  { title: "Exam Structures", url: "/admin/exam-structures", icon: Layers },
+  { titleKey: "nav.examStructures", url: "/admin/exam-structures", icon: Layers },
-  { title: "Rubrics", url: "/admin/rubrics", icon: BookOpen },
+  { titleKey: "nav.rubrics", url: "/admin/rubrics", icon: BookOpen },
-  { title: "Generation", url: "/admin/generation", icon: Wand2 },
+  { titleKey: "nav.generation", url: "/admin/generation", icon: Wand2 },
-  { title: "Approval Workflows", url: "/admin/approval-workflows", icon: GitBranch },
+  { titleKey: "nav.reviewQueue", url: "/admin/exam/review-queue", icon: Sparkles },
+  { titleKey: "nav.aiPrompts", url: "/admin/ai/prompts", icon: Wand2 },
+  { titleKey: "nav.aiFeedback", url: "/admin/ai/feedback", icon: Sparkles },
+  { titleKey: "nav.coursePlans", url: "/admin/course-plans", icon: Compass },
+  { titleKey: "nav.approvalWorkflows", url: "/admin/approval-workflows", icon: GitBranch },
 ];
 
 const adaptiveItems: NavItem[] = [
-  { title: "Taxonomy", url: "/admin/taxonomy", icon: Target },
+  { titleKey: "nav.taxonomy", url: "/admin/taxonomy", icon: Target },
-  { title: "Resources", url: "/admin/resources", icon: FolderOpen },
+  { titleKey: "nav.resources", url: "/admin/resources", icon: FolderOpen },
 ];
 
 const institutionalItems: NavItem[] = [
-  { title: "Academic Years", url: "/admin/academic-years", icon: CalendarDays },
+  { titleKey: "nav.academicYears", url: "/admin/academic-years", icon: CalendarDays },
-  { title: "Departments", url: "/admin/departments", icon: Landmark },
+  { titleKey: "nav.departments", url: "/admin/departments", icon: Landmark },
-  { title: "Admissions", url: "/admin/admissions", icon: UserPlus },
+  { titleKey: "nav.admissions", url: "/admin/admissions", icon: UserPlus },
-  { title: "Admission Register", url: "/admin/admission-register", icon: ScrollText },
+  { titleKey: "nav.admissionRegister", url: "/admin/admission-register", icon: ScrollText },
-  { title: "Exam Sessions", url: "/admin/exam-sessions", icon: FileText },
+  { titleKey: "nav.examSessions", url: "/admin/exam-sessions", icon: FileText },
-  { title: "Marksheets", url: "/admin/marksheets", icon: Award },
+  { titleKey: "nav.marksheets", url: "/admin/marksheets", icon: Award },
-  { title: "Student Leave", url: "/admin/student-leave", icon: CalendarOff },
+  { titleKey: "nav.studentLeave", url: "/admin/student-leave", icon: CalendarOff },
-  { title: "Fees & Payments", url: "/admin/fees", icon: DollarSign },
+  { titleKey: "nav.fees", url: "/admin/fees", icon: DollarSign },
-  { title: "Lessons", url: "/admin/lessons", icon: BookMarked },
+  { titleKey: "nav.lessons", url: "/admin/lessons", icon: BookMarked },
-  { title: "Gradebook", url: "/admin/gradebook", icon: BarChartHorizontal },
+  { titleKey: "nav.gradebook", url: "/admin/gradebook", icon: BarChartHorizontal },
-  { title: "Student Progress", url: "/admin/student-progress", icon: TrendingUp },
+  { titleKey: "nav.studentProgress", url: "/admin/student-progress", icon: TrendingUp },
-  { title: "Library", url: "/admin/library", icon: Library },
+  { titleKey: "nav.library", url: "/admin/library", icon: Library },
-  { title: "Activities", url: "/admin/activities", icon: Activity },
+  { titleKey: "nav.activities", url: "/admin/activities", icon: Activity },
-  { title: "Facilities", url: "/admin/facilities", icon: Warehouse },
+  { titleKey: "nav.facilities", url: "/admin/facilities", icon: Warehouse },
 ];
 
 const managementItems: NavItem[] = [
-  { title: "Users", url: "/admin/users", icon: Users },
+  { titleKey: "nav.users", url: "/admin/users", icon: Users },
-  { title: "Entities", url: "/admin/entities", icon: Building2 },
+  { titleKey: "nav.entities", url: "/admin/entities", icon: Building2 },
-  { title: "Classrooms", url: "/admin/classrooms", icon: GraduationCap },
+  { titleKey: "nav.classrooms", url: "/admin/classrooms", icon: GraduationCap },
-  { title: "User Roles", url: "/admin/user-roles", icon: UserCog },
+  { titleKey: "nav.userRoles", url: "/admin/user-roles", icon: UserCog },
-  { title: "Roles & Permissions", url: "/admin/roles-permissions", icon: Settings },
+  { titleKey: "nav.rolesPermissions", url: "/admin/roles-permissions", icon: Settings },
-  { title: "Authority Matrix", url: "/admin/authority-matrix", icon: Workflow },
+  { titleKey: "nav.authorityMatrix", url: "/admin/authority-matrix", icon: Workflow },
 ];
 
 const reportItems: NavItem[] = [
-  { title: "Student Performance", url: "/admin/student-performance", icon: BarChart3 },
+  { titleKey: "nav.studentPerformance", url: "/admin/student-performance", icon: BarChart3 },
-  { title: "Stats Corporate", url: "/admin/stats-corporate", icon: Building2 },
+  { titleKey: "nav.statsCorporate", url: "/admin/stats-corporate", icon: Building2 },
-  { title: "Record", url: "/admin/record", icon: History },
+  { titleKey: "nav.record", url: "/admin/record", icon: History },
 ];
 
 const trainingItems: NavItem[] = [
-  { title: "Vocabulary", url: "/admin/training/vocabulary", icon: BookA },
+  { titleKey: "nav.vocabulary", url: "/admin/training/vocabulary", icon: BookA },
-  { title: "Grammar", url: "/admin/training/grammar", icon: PenTool },
+  { titleKey: "nav.grammar", url: "/admin/training/grammar", icon: PenTool },
 ];
 
 const configItems: NavItem[] = [
-  { title: "FAQ Manager", url: "/admin/faq", icon: FaqIcon },
+  { titleKey: "nav.faqManager", url: "/admin/faq", icon: FaqIcon },
-  { title: "Notification Rules", url: "/admin/notification-rules", icon: Bell },
+  { titleKey: "nav.notificationRules", url: "/admin/notification-rules", icon: Bell },
-  { title: "Approval Config", url: "/admin/approval-config", icon: Workflow },
+  { titleKey: "nav.approvalConfig", url: "/admin/approval-config", icon: Workflow },
 ];
 
 const supportItems: NavItem[] = [
-  { title: "Payment Record", url: "/admin/payment-record", icon: CreditCard },
+  { titleKey: "nav.paymentRecord", url: "/admin/payment-record", icon: CreditCard },
-  { title: "Tickets", url: "/admin/tickets", icon: Ticket },
+  { titleKey: "nav.tickets", url: "/admin/tickets", icon: Ticket },
-  { title: "Settings", url: "/admin/settings-platform", icon: Settings },
+  { titleKey: "nav.settings", url: "/admin/settings-platform", icon: Settings },
 ];
 
 // ============= Reusable sidebar group =============
-function SidebarNavGroup({ label, items }: { label: string; items: NavItem[] }) {
+function SidebarNavGroup({ labelKey, items }: { labelKey: string; items: NavItem[] }) {
   const { state } = useSidebar();
+  const { t } = useTranslation();
   const collapsed = state === "collapsed";
 
   return (
     <SidebarGroup>
-      <SidebarGroupLabel>{label}</SidebarGroupLabel>
+      <SidebarGroupLabel>{t(labelKey)}</SidebarGroupLabel>
       <SidebarGroupContent>
         <SidebarMenu>
-          {items.map((item) => (
+          {items.map((item) => {
-            <SidebarMenuItem key={item.url}>
+            const label = t(item.titleKey);
-              <SidebarMenuButton asChild tooltip={item.title}>
+            return (
-                <NavLink
+              <SidebarMenuItem key={item.url}>
-                  to={item.url}
+                <SidebarMenuButton asChild tooltip={label}>
-                  end={item.url.endsWith("/dashboard") || item.url.endsWith("/platform")}
+                  <NavLink
-                  className="flex items-center gap-2 px-2 py-1.5 rounded-md text-sm text-sidebar-foreground hover:bg-sidebar-accent transition-colors"
+                    to={item.url}
-                  activeClassName="bg-sidebar-accent text-sidebar-accent-foreground font-medium"
+                    end={item.url.endsWith("/dashboard") || item.url.endsWith("/platform")}
-                >
+                    className="flex items-center gap-2 px-2 py-1.5 rounded-md text-sm text-sidebar-foreground hover:bg-sidebar-accent transition-colors"
-                  <item.icon className="h-4 w-4 shrink-0" />
+                    activeClassName="bg-sidebar-accent text-sidebar-accent-foreground font-medium"
-                  {!collapsed && <span>{item.title}</span>}
+                  >
-                </NavLink>
+                    <item.icon className="h-4 w-4 shrink-0" />
-              </SidebarMenuButton>
+                    {!collapsed && <span>{label}</span>}
-            </SidebarMenuItem>
+                  </NavLink>
-          ))}
+                </SidebarMenuButton>
+              </SidebarMenuItem>
+            );
+          })}
         </SidebarMenu>
       </SidebarGroupContent>
     </SidebarGroup>
@@ -145,40 +161,52 @@ function SidebarNavGroup({ label, items }: { label: string; items: NavItem[] })
 }
 
 // ============= Breadcrumbs =============
-const routeLabels: Record<string, string> = {
+// Map URL segments to i18n keys so breadcrumbs follow the active locale.
-  admin: "Admin", dashboard: "Dashboard", platform: "Platform", courses: "Courses",
+// Segments without an entry fall back to a Title-cased version of the slug.
-  students: "Students", teachers: "Teachers", batches: "Batches", timetable: "Timetable",
+const routeLabelKeys: Record<string, string> = {
-  reports: "Reports", assignments: "Assignments", examsList: "Exams List",
+  admin: "breadcrumb.admin", dashboard: "breadcrumb.dashboard",
-  "exam-structures": "Exam Structures", rubrics: "Rubrics", generation: "Generation",
+  platform: "breadcrumb.platform", courses: "nav.courses",
-  "approval-workflows": "Approval Workflows", users: "Users", entities: "Entities",
+  students: "nav.students", teachers: "nav.teachers", batches: "nav.batches",
-  classrooms: "Classrooms", "student-performance": "Student Performance",
+  timetable: "nav.timetable", reports: "nav.reports",
-  "stats-corporate": "Stats Corporate", record: "Record", training: "Training",
+  assignments: "nav.assignments", examsList: "nav.examsList",
-  vocabulary: "Vocabulary", grammar: "Grammar", "payment-record": "Payment Record",
+  "exam-structures": "nav.examStructures", rubrics: "nav.rubrics",
-  tickets: "Tickets", "settings-platform": "Settings", settings: "Settings",
+  generation: "nav.generation", "review-queue": "nav.reviewQueue",
-  profile: "Profile", exam: "Exam",
+  review: "breadcrumb.review", prompts: "nav.aiPrompts", ai: "breadcrumb.ai",
-  "academic-years": "Academic Years", departments: "Departments",
+  feedback: "breadcrumb.feedback",
-  admissions: "Admissions", "admission-register": "Admission Register",
+  "approval-workflows": "nav.approvalWorkflows", users: "nav.users",
-  "exam-sessions": "Exam Sessions", marksheets: "Marksheets",
+  entities: "nav.entities", classrooms: "nav.classrooms",
-  faq: "FAQ Manager", "notification-rules": "Notification Rules",
+  "student-performance": "nav.studentPerformance",
-  "approval-config": "Approval Config",
+  "stats-corporate": "nav.statsCorporate", record: "nav.record",
-  "student-leave": "Student Leave", fees: "Fees & Payments", lessons: "Lessons",
+  training: "sidebarGroup.training", vocabulary: "nav.vocabulary",
-  gradebook: "Gradebook", "student-progress": "Student Progress",
+  grammar: "nav.grammar", "payment-record": "nav.paymentRecord",
-  library: "Library", activities: "Activities", facilities: "Facilities",
+  tickets: "nav.tickets", "settings-platform": "nav.settings",
+  settings: "nav.settings", profile: "nav.profile", exam: "breadcrumb.exam",
+  "academic-years": "nav.academicYears", departments: "nav.departments",
+  admissions: "nav.admissions", "admission-register": "nav.admissionRegister",
+  "exam-sessions": "nav.examSessions", marksheets: "nav.marksheets",
+  faq: "nav.faqManager", "notification-rules": "nav.notificationRules",
+  "approval-config": "nav.approvalConfig",
+  "student-leave": "nav.studentLeave", fees: "nav.fees",
+  lessons: "nav.lessons", gradebook: "nav.gradebook",
+  "student-progress": "nav.studentProgress", library: "nav.library",
+  activities: "nav.activities", facilities: "nav.facilities",
 };
 
 function AppBreadcrumbs() {
   const location = useLocation();
+  const { t } = useTranslation();
   const segments = location.pathname.split("/").filter(Boolean);
 
   return (
     <Breadcrumb>
       <BreadcrumbList>
         <BreadcrumbItem>
-          <BreadcrumbLink asChild><Link to="/admin/dashboard">Home</Link></BreadcrumbLink>
+          <BreadcrumbLink asChild><Link to="/admin/dashboard">{t("common.home")}</Link></BreadcrumbLink>
         </BreadcrumbItem>
         {segments.map((seg, i) => {
           const path = "/" + segments.slice(0, i + 1).join("/");
-          const label = routeLabels[seg] || seg.charAt(0).toUpperCase() + seg.slice(1);
+          const key = routeLabelKeys[seg];
+          const label = key ? t(key) : seg.charAt(0).toUpperCase() + seg.slice(1);
           const isLast = i === segments.length - 1;
           return (
             <React.Fragment key={path}>
@@ -194,10 +222,25 @@ function AppBreadcrumbs() {
   );
 }
 
+// ============= Route content fallback =============
+// Shown only inside the main content area while a lazy-loaded route chunk
+// is fetching. Keeping the fallback local means the sidebar and header
+// stay mounted during navigation — previously the page felt like a full
+// browser reload because the outer App-level Suspense replaced everything
+// with a full-viewport spinner.
+function RouteContentFallback() {
+  return (
+    <div className="flex items-center justify-center py-20">
+      <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary" />
+    </div>
+  );
+}
+
 // ============= Main Layout =============
 export default function AdminLmsLayout() {
   const { user, logout } = useAuth();
   const navigate = useNavigate();
+  const { t } = useTranslation();
 
   const initials = user?.name?.split(" ").map(w => w[0]).join("").slice(0, 2).toUpperCase() ?? "??";
 
@@ -213,13 +256,15 @@ export default function AdminLmsLayout() {
         <div className="flex-1 flex flex-col min-w-0">
           <header className="h-14 border-b bg-card flex items-center justify-between px-4 shrink-0">
             <div className="flex items-center gap-3">
-              <SidebarTrigger />
+              <SidebarTrigger aria-label={t("chrome.toggleSidebar")} />
               <AppBreadcrumbs />
             </div>
             <AiSearchBar />
             <div className="flex items-center gap-2">
+              <LanguageToggle />
+              <ThemeToggle />
               <NotificationDropdown />
-              <Button variant="ghost" size="icon" onClick={() => navigate("/admin/tickets")} className="text-muted-foreground hover:text-foreground">
+              <Button variant="ghost" size="icon" aria-label={t("chrome.ticketsTooltip")} onClick={() => navigate("/admin/tickets")} className="text-muted-foreground hover:text-foreground">
                 <Ticket className="h-4 w-4" />
               </Button>
               <DropdownMenu>
@@ -232,36 +277,38 @@ export default function AdminLmsLayout() {
                 </DropdownMenuTrigger>
                 <DropdownMenuContent align="end" className="w-48">
                   <div className="px-3 py-2">
-                    <p className="text-sm font-medium">{user?.name ?? "User"}</p>
+                    <p className="text-sm font-medium">{user?.name ?? t("userMenu.userFallback")}</p>
                     <p className="text-xs text-muted-foreground">{user?.email ?? ""}</p>
                   </div>
                   <DropdownMenuSeparator />
                   <DropdownMenuItem onClick={() => navigate("/admin/profile")}>
-                    <User className="mr-2 h-4 w-4" /> Profile
+                    <User className="me-2 h-4 w-4" /> {t("userMenu.profile")}
                   </DropdownMenuItem>
                   <DropdownMenuItem onClick={() => navigate("/admin/settings-platform")}>
-                    <Settings className="mr-2 h-4 w-4" /> Settings
+                    <Settings className="me-2 h-4 w-4" /> {t("userMenu.settings")}
                   </DropdownMenuItem>
                   <DropdownMenuSeparator />
                   <DropdownMenuItem onClick={handleLogout}>
-                    <LogOut className="mr-2 h-4 w-4" /> Logout
+                    <LogOut className="me-2 h-4 w-4" /> {t("userMenu.logout")}
                   </DropdownMenuItem>
                 </DropdownMenuContent>
               </DropdownMenu>
             </div>
           </header>
           <main className="flex-1 overflow-auto p-6">
-            <Outlet />
+            <Suspense fallback={<RouteContentFallback />}>
+              <Outlet />
+            </Suspense>
           </main>
         </div>
       </div>
       <AiAssistantDrawer />
       <Link
         to="/admin/tickets"
-        className="fixed bottom-6 right-6 z-50 flex items-center gap-2 rounded-full bg-primary px-4 py-2.5 text-primary-foreground shadow-lg hover:opacity-90 transition-opacity"
+        className="fixed bottom-6 end-6 z-50 flex items-center gap-2 rounded-full bg-primary px-4 py-2.5 text-primary-foreground shadow-lg hover:opacity-90 transition-opacity"
       >
         <HelpCircle className="h-4 w-4" />
-        <span className="text-sm font-medium">Need help?</span>
+        <span className="text-sm font-medium">{t("chrome.needHelp")}</span>
       </Link>
     </SidebarProvider>
   );
@@ -273,67 +320,78 @@ function AdminSidebar() {
   const collapsed = state === "collapsed";
   const { user } = useAuth();
   const { hasAnyPermission, isAdmin } = usePermissions();
+  const { t, i18n } = useTranslation();
+  const sidebarSide = i18n.dir() === "rtl" ? "right" : "left";
 
   const showManagement = isAdmin || hasAnyPermission(["view_entities", "view_students", "view_teachers"]);
   const showReports = isAdmin || hasAnyPermission(["view_statistics", "view_student_performance", "view_entity_statistics"]);
   const showPayments = isAdmin || hasAnyPermission(["view_payment_record", "pay_entity"]);
 
   return (
-    <Sidebar collapsible="icon">
+    <Sidebar side={sidebarSide} collapsible="icon">
       <SidebarHeader className="p-4">
         <div className="flex items-center gap-2">
-          <img src="/logo.png" alt="EnCoach" className="h-8 w-8 rounded-lg shrink-0 object-contain" />
+          {collapsed ? (
-          {!collapsed && (
+            <img
-            <span className="text-lg font-bold tracking-tight text-sidebar-foreground">
+              src="/logo.png"
-              <span className="text-[hsl(42,40%,62%)]">En</span>
+              alt={t("chrome.adminAlt")}
-              <span>Coach</span>
+              className="h-9 w-9 shrink-0 rounded-lg object-contain"
-            </span>
+            />
+          ) : (
+            <img
+              src="/logo.png"
+              alt={t("chrome.adminAltLong")}
+              className="h-14 w-auto shrink-0 object-contain"
+            />
           )}
         </div>
       </SidebarHeader>
       <SidebarSeparator />
       <SidebarContent>
-        <SidebarNavGroup label="Overview" items={overviewItems} />
+        <SidebarNavGroup labelKey="sidebarGroup.overview" items={overviewItems} />
-        <SidebarNavGroup label="LMS" items={lmsItems} />
+        <SidebarNavGroup labelKey="sidebarGroup.lms" items={lmsItems} />
-        <SidebarNavGroup label="Adaptive Learning" items={adaptiveItems} />
+        <SidebarNavGroup labelKey="sidebarGroup.adaptiveLearning" items={adaptiveItems} />
-        <SidebarNavGroup label="Institutional" items={institutionalItems} />
+        <SidebarNavGroup labelKey="sidebarGroup.institutional" items={institutionalItems} />
-        <SidebarNavGroup label="Academic" items={academicItems} />
+        <SidebarNavGroup labelKey="sidebarGroup.academic" items={academicItems} />
-        {showManagement && <SidebarNavGroup label="Management" items={managementItems} />}
+        {showManagement && <SidebarNavGroup labelKey="sidebarGroup.management" items={managementItems} />}
-        {showReports && <SidebarNavGroup label="Reports" items={reportItems} />}
+        {showReports && <SidebarNavGroup labelKey="sidebarGroup.reports" items={reportItems} />}
-        <SidebarNavGroup label="Configuration" items={configItems} />
+        <SidebarNavGroup labelKey="sidebarGroup.configuration" items={configItems} />
 
         <SidebarGroup>
           <Collapsible defaultOpen className="group/collapsible">
             <SidebarGroupLabel asChild>
               <CollapsibleTrigger className="flex w-full items-center justify-between">
-                Training
+                {t("sidebarGroup.training")}
                 {!collapsed && <ChevronDown className="h-4 w-4 transition-transform group-data-[state=open]/collapsible:rotate-180" />}
               </CollapsibleTrigger>
             </SidebarGroupLabel>
             <CollapsibleContent>
               <SidebarGroupContent>
                 <SidebarMenu>
-                  {trainingItems.map((item) => (
+                  {trainingItems.map((item) => {
-                    <SidebarMenuItem key={item.url}>
+                    const label = t(item.titleKey);
-                      <SidebarMenuButton asChild tooltip={item.title}>
+                    return (
-                        <NavLink
+                      <SidebarMenuItem key={item.url}>
-                          to={item.url}
+                        <SidebarMenuButton asChild tooltip={label}>
-                          className="flex items-center gap-2 px-2 py-1.5 rounded-md text-sm text-sidebar-foreground hover:bg-sidebar-accent transition-colors"
+                          <NavLink
-                          activeClassName="bg-sidebar-accent text-sidebar-accent-foreground font-medium"
+                            to={item.url}
-                        >
+                            className="flex items-center gap-2 px-2 py-1.5 rounded-md text-sm text-sidebar-foreground hover:bg-sidebar-accent transition-colors"
-                          <item.icon className="h-4 w-4 shrink-0" />
+                            activeClassName="bg-sidebar-accent text-sidebar-accent-foreground font-medium"
-                          {!collapsed && <span>{item.title}</span>}
+                          >
-                        </NavLink>
+                            <item.icon className="h-4 w-4 shrink-0" />
-                      </SidebarMenuButton>
+                            {!collapsed && <span>{label}</span>}
-                    </SidebarMenuItem>
+                          </NavLink>
-                  ))}
+                        </SidebarMenuButton>
+                      </SidebarMenuItem>
+                    );
+                  })}
                 </SidebarMenu>
               </SidebarGroupContent>
             </CollapsibleContent>
           </Collapsible>
         </SidebarGroup>
 
-        <SidebarNavGroup label="Support" items={showPayments ? supportItems : supportItems.filter(i => i.url !== "/admin/payment-record")} />
+        <SidebarNavGroup labelKey="sidebarGroup.support" items={showPayments ? supportItems : supportItems.filter(i => i.url !== "/admin/payment-record")} />
       </SidebarContent>
       <SidebarSeparator />
       <SidebarFooter className="p-3">
@@ -343,7 +401,7 @@ function AdminSidebar() {
           </div>
           {!collapsed && (
             <div className="flex flex-col min-w-0">
-              <span className="text-sm font-medium truncate text-sidebar-foreground">{user?.name ?? "User"}</span>
+              <span className="text-sm font-medium truncate text-sidebar-foreground">{user?.name ?? t("userMenu.userFallback")}</span>
               <span className="text-xs text-muted-foreground truncate">{user?.email ?? ""}</span>
             </div>
           )}

src/components/AppLayout.tsx

@@ -1,4 +1,5 @@
 import { Outlet, useLocation, Link, useNavigate } from "react-router-dom";
+import { Suspense } from "react";
 import { SidebarProvider, SidebarTrigger } from "@/components/ui/sidebar";
 import { AppSidebar } from "@/components/AppSidebar";
 import {
@@ -77,6 +78,16 @@ function AppBreadcrumbs() {
   );
 }
 
+// Local Suspense fallback so the sidebar/header keep rendering while a
+// lazy route chunk loads. See AdminLmsLayout for the full rationale.
+function RouteContentFallback() {
+  return (
+    <div className="flex items-center justify-center py-20">
+      <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary" />
+    </div>
+  );
+}
+
 export default function AppLayout() {
   const navigate = useNavigate();
 
@@ -127,7 +138,9 @@ export default function AppLayout() {
             </div>
           </header>
           <main className="flex-1 overflow-auto p-6">
-            <Outlet />
+            <Suspense fallback={<RouteContentFallback />}>
+              <Outlet />
+            </Suspense>
           </main>
         </div>
       </div>

src/components/AppSidebar.tsx

@@ -5,6 +5,7 @@ import {
 } from "lucide-react";
 import { NavLink } from "@/components/NavLink";
 import { useLocation } from "react-router-dom";
+import { useTranslation } from "react-i18next";
 import {
   Sidebar, SidebarContent, SidebarGroup, SidebarGroupContent,
   SidebarGroupLabel, SidebarMenu, SidebarMenuButton, SidebarMenuItem,
@@ -81,9 +82,11 @@ export function AppSidebar() {
   const { state } = useSidebar();
   const collapsed = state === "collapsed";
   const location = useLocation();
+  const { i18n } = useTranslation();
+  const sidebarSide = i18n.dir() === "rtl" ? "right" : "left";
 
   return (
-    <Sidebar collapsible="icon">
+    <Sidebar side={sidebarSide} collapsible="icon">
       <SidebarHeader className="p-4">
         <div className="flex items-center gap-2">
           <div className="h-8 w-8 rounded-lg bg-primary flex items-center justify-center shrink-0">

src/components/ErrorBoundary.tsx

@@ -0,0 +1,71 @@
+import { Component, type ErrorInfo, type ReactNode } from "react";
+import { withTranslation, type WithTranslation } from "react-i18next";
+
+interface Props extends WithTranslation {
+  children: ReactNode;
+  fallback?: ReactNode;
+}
+
+interface State {
+  hasError: boolean;
+  error: Error | null;
+}
+
+/**
+ * Error boundary is a classical React class component, so we bridge it to
+ * i18next via the `withTranslation` HOC. That keeps the tree-shaking of
+ * `react-i18next`'s hook path intact while giving us a `t` prop here.
+ */
+class ErrorBoundaryInner extends Component<Props, State> {
+  constructor(props: Props) {
+    super(props);
+    this.state = { hasError: false, error: null };
+  }
+
+  static getDerivedStateFromError(error: Error): State {
+    return { hasError: true, error };
+  }
+
+  componentDidCatch(error: Error, errorInfo: ErrorInfo) {
+    console.error("ErrorBoundary caught:", error, errorInfo);
+  }
+
+  render() {
+    if (this.state.hasError) {
+      if (this.props.fallback) return this.props.fallback;
+      const { t } = this.props;
+
+      return (
+        <div className="min-h-screen flex items-center justify-center bg-background p-6">
+          <div className="max-w-md w-full text-center space-y-4">
+            <div className="mx-auto h-16 w-16 rounded-full bg-destructive/10 flex items-center justify-center">
+              <svg className="h-8 w-8 text-destructive" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+                <path strokeLinecap="round" strokeLinejoin="round" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L4.082 16.5c-.77.833.192 2.5 1.732 2.5z" />
+              </svg>
+            </div>
+            <h2 className="text-xl font-semibold">{t("errors.somethingWrong")}</h2>
+            <p className="text-muted-foreground text-sm">
+              {t("errors.unexpectedDescription")}
+            </p>
+            {this.state.error && (
+              <details className="text-start text-xs text-muted-foreground bg-muted rounded-lg p-3">
+                <summary className="cursor-pointer font-medium">{t("errors.errorDetails")}</summary>
+                <pre className="mt-2 whitespace-pre-wrap break-words">{this.state.error.message}</pre>
+              </details>
+            )}
+            <button
+              onClick={() => window.location.reload()}
+              className="inline-flex items-center justify-center rounded-md bg-primary px-4 py-2 text-sm font-medium text-primary-foreground hover:bg-primary/90"
+            >
+              {t("errors.refreshPage")}
+            </button>
+          </div>
+        </div>
+      );
+    }
+
+    return this.props.children;
+  }
+}
+
+export const ErrorBoundary = withTranslation()(ErrorBoundaryInner);

src/components/LanguageToggle.tsx

@@ -0,0 +1,48 @@
+import { Languages } from "lucide-react";
+import { useTranslation } from "react-i18next";
+
+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuCheckboxItem,
+  DropdownMenuContent,
+  DropdownMenuLabel,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import { SUPPORTED_LANGS, type SupportedLang } from "@/i18n";
+
+export function LanguageToggle() {
+  const { i18n, t } = useTranslation();
+  const current = (i18n.language?.split("-")[0] || "en") as SupportedLang;
+
+  return (
+    <DropdownMenu>
+      <DropdownMenuTrigger asChild>
+        <Button
+          variant="ghost"
+          size="icon"
+          aria-label={t("language.change")}
+          title={t("language.change")}
+        >
+          <Languages className="h-5 w-5" />
+        </Button>
+      </DropdownMenuTrigger>
+      <DropdownMenuContent align="end">
+        <DropdownMenuLabel>{t("language.label")}</DropdownMenuLabel>
+        {SUPPORTED_LANGS.map((lang) => (
+          <DropdownMenuCheckboxItem
+            key={lang.code}
+            checked={current === lang.code}
+            onCheckedChange={(checked) => {
+              if (checked) void i18n.changeLanguage(lang.code);
+            }}
+          >
+            {lang.label}
+          </DropdownMenuCheckboxItem>
+        ))}
+      </DropdownMenuContent>
+    </DropdownMenu>
+  );
+}
+
+export default LanguageToggle;

src/components/MaterialViewer.tsx

@@ -0,0 +1,235 @@
+import { Sheet, SheetContent, SheetHeader, SheetTitle } from "@/components/ui/sheet";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import { ExternalLink, Download, FileText, Video, Music, Image, Link2 } from "lucide-react";
+import { API_BASE_URL } from "@/lib/api-client";
+import type { ChapterMaterial, MaterialType } from "@/types/courseware";
+
+interface MaterialViewerProps {
+  material: ChapterMaterial | null;
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  onDownload?: (materialId: number, name: string) => void;
+}
+
+const typeLabels: Record<MaterialType, string> = {
+  pdf: "PDF Document",
+  document: "Document",
+  video: "Video",
+  audio: "Audio",
+  image: "Image",
+  link: "External Link",
+  article: "Article",
+};
+
+const typeIcons: Record<MaterialType, React.ReactNode> = {
+  pdf: <FileText className="h-4 w-4" />,
+  document: <FileText className="h-4 w-4" />,
+  video: <Video className="h-4 w-4" />,
+  audio: <Music className="h-4 w-4" />,
+  image: <Image className="h-4 w-4" />,
+  link: <Link2 className="h-4 w-4" />,
+  article: <FileText className="h-4 w-4" />,
+};
+
+function getContentUrl(materialId: number): string {
+  const token = localStorage.getItem("encoach_token") ?? "";
+  return `${API_BASE_URL}/materials/${materialId}/content?token=${token}`;
+}
+
+function isYouTubeUrl(url: string): boolean {
+  return /(?:youtube\.com\/(?:watch|embed)|youtu\.be\/)/.test(url);
+}
+
+function getYouTubeEmbedUrl(url: string): string {
+  const match = url.match(
+    /(?:youtube\.com\/(?:watch\?v=|embed\/)|youtu\.be\/)([\w-]+)/
+  );
+  return match ? `https://www.youtube.com/embed/${match[1]}` : url;
+}
+
+function PdfViewer({ material }: { material: ChapterMaterial }) {
+  if (material.file_url) {
+    return (
+      <iframe
+        src={getContentUrl(material.id)}
+        className="w-full h-full min-h-[600px] rounded-lg border"
+        title={material.name}
+      />
+    );
+  }
+  if (material.url) {
+    return (
+      <iframe
+        src={material.url}
+        className="w-full h-full min-h-[600px] rounded-lg border"
+        title={material.name}
+      />
+    );
+  }
+  return <EmptyState message="No PDF file available." />;
+}
+
+function VideoViewer({ material }: { material: ChapterMaterial }) {
+  if (material.url && isYouTubeUrl(material.url)) {
+    return (
+      <iframe
+        src={getYouTubeEmbedUrl(material.url)}
+        className="w-full aspect-video rounded-lg border"
+        title={material.name}
+        allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
+        allowFullScreen
+      />
+    );
+  }
+  if (material.url) {
+    return (
+      <video
+        src={material.url}
+        controls
+        className="w-full rounded-lg border"
+        title={material.name}
+      >
+        Your browser does not support the video tag.
+      </video>
+    );
+  }
+  if (material.file_url) {
+    return (
+      <video
+        src={getContentUrl(material.id)}
+        controls
+        className="w-full rounded-lg border"
+        title={material.name}
+      >
+        Your browser does not support the video tag.
+      </video>
+    );
+  }
+  return <EmptyState message="No video source available." />;
+}
+
+function AudioViewer({ material }: { material: ChapterMaterial }) {
+  const src = material.url || (material.file_url ? getContentUrl(material.id) : null);
+  if (!src) return <EmptyState message="No audio source available." />;
+  return (
+    <div className="flex items-center justify-center py-12">
+      <audio src={src} controls className="w-full max-w-lg">
+        Your browser does not support the audio element.
+      </audio>
+    </div>
+  );
+}
+
+function ImageViewer({ material }: { material: ChapterMaterial }) {
+  const src = material.url || (material.file_url ? getContentUrl(material.id) : null);
+  if (!src) return <EmptyState message="No image available." />;
+  return (
+    <div className="flex items-center justify-center">
+      <img
+        src={src}
+        alt={material.name}
+        className="max-w-full max-h-[70vh] rounded-lg border object-contain"
+      />
+    </div>
+  );
+}
+
+function ArticleViewer({ material }: { material: ChapterMaterial }) {
+  if (!material.description) return <EmptyState message="No article content available." />;
+  return (
+    <div className="prose prose-sm dark:prose-invert max-w-none p-4 rounded-lg border bg-card">
+      <div className="whitespace-pre-wrap">{material.description}</div>
+    </div>
+  );
+}
+
+function LinkViewer({ material }: { material: ChapterMaterial }) {
+  if (!material.url) return <EmptyState message="No URL available." />;
+  return (
+    <div className="space-y-4">
+      <div className="flex items-center gap-2 p-4 rounded-lg border bg-muted/50">
+        <Link2 className="h-5 w-5 text-primary shrink-0" />
+        <a
+          href={material.url}
+          target="_blank"
+          rel="noopener noreferrer"
+          className="text-primary underline break-all flex-1"
+        >
+          {material.url}
+        </a>
+        <Button variant="outline" size="sm" asChild>
+          <a href={material.url} target="_blank" rel="noopener noreferrer">
+            <ExternalLink className="h-4 w-4 mr-1" /> Open
+          </a>
+        </Button>
+      </div>
+      <iframe
+        src={material.url}
+        className="w-full min-h-[500px] rounded-lg border"
+        title={material.name}
+        sandbox="allow-scripts allow-same-origin"
+      />
+    </div>
+  );
+}
+
+function EmptyState({ message }: { message: string }) {
+  return (
+    <div className="flex flex-col items-center justify-center py-16 text-muted-foreground">
+      <FileText className="h-12 w-12 mb-3 opacity-40" />
+      <p>{message}</p>
+    </div>
+  );
+}
+
+const viewers: Record<MaterialType, React.FC<{ material: ChapterMaterial }>> = {
+  pdf: PdfViewer,
+  document: PdfViewer,
+  video: VideoViewer,
+  audio: AudioViewer,
+  image: ImageViewer,
+  link: LinkViewer,
+  article: ArticleViewer,
+};
+
+export default function MaterialViewer({ material, open, onOpenChange, onDownload }: MaterialViewerProps) {
+  if (!material) return null;
+
+  const Viewer = viewers[material.type] ?? ArticleViewer;
+
+  return (
+    <Sheet open={open} onOpenChange={onOpenChange}>
+      <SheetContent side="right" className="w-full sm:max-w-2xl lg:max-w-4xl overflow-y-auto">
+        <SheetHeader className="space-y-3 pb-4 border-b">
+          <div className="flex items-center gap-2">
+            {typeIcons[material.type]}
+            <Badge variant="outline">{typeLabels[material.type]}</Badge>
+          </div>
+          <SheetTitle className="text-lg">{material.name}</SheetTitle>
+          {material.description && material.type !== "article" && (
+            <p className="text-sm text-muted-foreground">{material.description}</p>
+          )}
+          <div className="flex gap-2">
+            {material.allow_download && material.file_url && onDownload && (
+              <Button variant="outline" size="sm" onClick={() => onDownload(material.id, material.name)}>
+                <Download className="h-4 w-4 mr-1" /> Download
+              </Button>
+            )}
+            {material.url && (
+              <Button variant="outline" size="sm" asChild>
+                <a href={material.url} target="_blank" rel="noopener noreferrer">
+                  <ExternalLink className="h-4 w-4 mr-1" /> Open Link
+                </a>
+              </Button>
+            )}
+          </div>
+        </SheetHeader>
+
+        <div className="mt-6">
+          <Viewer material={material} />
+        </div>
+      </SheetContent>
+    </Sheet>
+  );
+}

src/components/NavLink.tsx

@@ -1,4 +1,4 @@
-import { NavLink as RouterNavLink, NavLinkProps } from "react-router-dom";
+import { NavLink as RouterNavLink, NavLinkProps, useNavigate } from "react-router-dom";
 import { forwardRef } from "react";
 import { cn } from "@/lib/utils";
 
@@ -9,7 +9,14 @@ interface NavLinkCompatProps extends Omit<NavLinkProps, "className"> {
 }
 
 const NavLink = forwardRef<HTMLAnchorElement, NavLinkCompatProps>(
-  ({ className, activeClassName, pendingClassName, to, ...props }, ref) => {
+  ({ className, activeClassName, pendingClassName, to, onClick, ...props }, ref) => {
+    const navigate = useNavigate();
+
+    const isExternalTo = (value: NavLinkProps["to"]): boolean => {
+      if (typeof value !== "string") return false;
+      return /^(https?:)?\/\//.test(value) || value.startsWith("mailto:") || value.startsWith("tel:");
+    };
+
     return (
       <RouterNavLink
         ref={ref}
@@ -17,6 +24,31 @@ const NavLink = forwardRef<HTMLAnchorElement, NavLinkCompatProps>(
         className={({ isActive, isPending }) =>
           cn(className, isActive && activeClassName, isPending && pendingClassName)
         }
+        onClick={(event) => {
+          onClick?.(event);
+          if (
+            event.defaultPrevented ||
+            event.button !== 0 ||
+            event.metaKey ||
+            event.altKey ||
+            event.ctrlKey ||
+            event.shiftKey ||
+            props.target === "_blank" ||
+            isExternalTo(to)
+          ) {
+            return;
+          }
+
+          // Force client-side route transitions for app menu links.
+          event.preventDefault();
+          navigate(to, {
+            replace: props.replace,
+            state: props.state,
+            relative: props.relative,
+            preventScrollReset: props.preventScrollReset,
+            viewTransition: props.viewTransition,
+          });
+        }}
         {...props}
       />
     );

src/components/NotificationDropdown.tsx

@@ -1,35 +1,50 @@
 import { Bell } from "lucide-react";
+import { useTranslation } from "react-i18next";
 import { Button } from "@/components/ui/button";
 import {
   DropdownMenu, DropdownMenuContent, DropdownMenuItem,
   DropdownMenuSeparator, DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
+
 export default function NotificationDropdown() {
+  const { t } = useTranslation();
   const notifications: { id: string; title: string; message: string; time: string; read: boolean; type: string }[] = [];
   const unread = notifications.filter((n) => !n.read).length;
 
   return (
     <DropdownMenu>
       <DropdownMenuTrigger asChild>
-        <Button variant="ghost" size="icon" className="relative text-muted-foreground hover:text-foreground">
+        <Button
+          variant="ghost"
+          size="icon"
+          aria-label={t("notifications.ariaLabel")}
+          title={t("notifications.ariaLabel")}
+          className="relative text-muted-foreground hover:text-foreground"
+        >
           <Bell className="h-4 w-4" />
           {unread > 0 && (
-            <span className="absolute -top-0.5 -right-0.5 h-4 w-4 rounded-full bg-destructive text-[10px] font-bold text-destructive-foreground flex items-center justify-center">
+            <span className="absolute -top-0.5 -end-0.5 h-4 w-4 rounded-full bg-destructive text-[10px] font-bold text-destructive-foreground flex items-center justify-center">
               {unread}
             </span>
           )}
         </Button>
       </DropdownMenuTrigger>
       <DropdownMenuContent align="end" className="w-80">
-        <div className="px-3 py-2 font-semibold text-sm">Notifications</div>
+        <div className="px-3 py-2 font-semibold text-sm">{t("notifications.title")}</div>
         <DropdownMenuSeparator />
-        {notifications.slice(0, 4).map((n) => (
+        {notifications.length === 0 ? (
-          <DropdownMenuItem key={n.id} className="flex flex-col items-start gap-0.5 py-2.5 cursor-pointer">
+          <div className="px-3 py-6 text-center text-xs text-muted-foreground">
-            <span className={`text-sm font-medium ${!n.read ? "text-foreground" : "text-muted-foreground"}`}>{n.title}</span>
+            {t("notifications.empty")}
-            <span className="text-xs text-muted-foreground line-clamp-1">{n.message}</span>
+          </div>
-            <span className="text-[10px] text-muted-foreground/70">{n.time}</span>
+        ) : (
-          </DropdownMenuItem>
+          notifications.slice(0, 4).map((n) => (
-        ))}
+            <DropdownMenuItem key={n.id} className="flex flex-col items-start gap-0.5 py-2.5 cursor-pointer">
+              <span className={`text-sm font-medium ${!n.read ? "text-foreground" : "text-muted-foreground"}`}>{n.title}</span>
+              <span className="text-xs text-muted-foreground line-clamp-1">{n.message}</span>
+              <span className="text-[10px] text-muted-foreground/70">{n.time}</span>
+            </DropdownMenuItem>
+          ))
+        )}
       </DropdownMenuContent>
     </DropdownMenu>
   );

src/components/QuickSetupWizard.tsx

@@ -0,0 +1,250 @@
+import { Link } from "react-router-dom";
+import { useQueries } from "@tanstack/react-query";
+import { useTranslation } from "react-i18next";
+import { LucideIcon, Check, ChevronRight, Sparkles } from "lucide-react";
+
+import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Badge } from "@/components/ui/badge";
+import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/components/ui/tooltip";
+import { cn } from "@/lib/utils";
+
+/**
+ * Smart-setup wizard primitives.
+ *
+ * The wizard is purposefully thin: each step / quick-create card is a deep
+ * link into an existing creation page that already knows how to talk to the
+ * backend. We don't re-implement forms here — the value of this screen is
+ * the guided sequence, the visual "what's next" hint, and the completion
+ * ticks that show which parts of the setup still need attention.
+ *
+ * Completion detection is optional and client-only. A caller can supply a
+ * `check` function that returns a Promise<boolean>; the wizard runs it via
+ * react-query so the UI refreshes automatically when the user returns from
+ * a sub-page without any extra plumbing.
+ */
+
+export interface WizardStep {
+  /** Stable key used for react-query cache. */
+  id: string;
+  titleKey: string;
+  descriptionKey: string;
+  /** Destination page that performs the actual creation. */
+  to: string;
+  icon: LucideIcon;
+  /** Optional completion check. When omitted the step is never auto-ticked. */
+  check?: () => Promise<boolean>;
+  /** Optional i18n key for a longer help tooltip. */
+  helpKey?: string;
+}
+
+export interface QuickCreate {
+  id: string;
+  titleKey: string;
+  descriptionKey: string;
+  to: string;
+  icon: LucideIcon;
+}
+
+export interface QuickSetupWizardProps {
+  /** Page heading i18n key, e.g. "quickSetup.adminTitle". */
+  titleKey: string;
+  /** Short lead paragraph i18n key. */
+  subtitleKey: string;
+  /** Ordered "Recommended flow" steps. */
+  steps: WizardStep[];
+  /** Side-grid of one-click creates that don't belong to the main flow. */
+  quickCreates: QuickCreate[];
+}
+
+export function QuickSetupWizard({
+  titleKey,
+  subtitleKey,
+  steps,
+  quickCreates,
+}: QuickSetupWizardProps) {
+  const { t } = useTranslation();
+
+  // Run all completion checks in parallel. Each step with a `check` gets its
+  // own cached query keyed by the step id. Steps without a `check` just
+  // resolve to `undefined` and render as neutral.
+  const queries = useQueries({
+    queries: steps.map((step) => ({
+      queryKey: ["quick-setup-check", step.id],
+      queryFn: step.check ?? (async () => undefined),
+      enabled: Boolean(step.check),
+      // Re-check when the user comes back from a sub-page — that's the most
+      // common path to "un-greying" a step after they've created a rubric /
+      // structure / exam.
+      refetchOnWindowFocus: true,
+      staleTime: 30_000,
+    })),
+  });
+
+  const completedCount = queries.filter((q) => q.data === true).length;
+  const totalCheckable = steps.filter((s) => s.check).length;
+  const progress = totalCheckable > 0 ? Math.round((completedCount / totalCheckable) * 100) : 0;
+
+  return (
+    <TooltipProvider delayDuration={200}>
+      <div className="space-y-6">
+        {/* Heading + progress */}
+        <div className="flex items-start justify-between gap-4">
+          <div className="space-y-1">
+            <div className="flex items-center gap-2">
+              <Sparkles className="h-5 w-5 text-primary" />
+              <h1 className="text-2xl font-semibold tracking-tight">{t(titleKey)}</h1>
+            </div>
+            <p className="text-muted-foreground max-w-2xl">{t(subtitleKey)}</p>
+          </div>
+          {totalCheckable > 0 && (
+            <div className="shrink-0 text-right">
+              <div className="text-sm text-muted-foreground">
+                {t("quickSetup.progressLabel")}
+              </div>
+              <div className="text-2xl font-semibold tabular-nums">
+                {completedCount}/{totalCheckable}
+              </div>
+              <div className="mt-1 h-1.5 w-32 rounded-full bg-muted overflow-hidden">
+                <div
+                  className="h-full bg-primary transition-all"
+                  style={{ width: `${progress}%` }}
+                />
+              </div>
+            </div>
+          )}
+        </div>
+
+        {/* Recommended flow */}
+        <section aria-labelledby="quick-setup-flow">
+          <h2
+            id="quick-setup-flow"
+            className="text-sm font-semibold uppercase tracking-wide text-muted-foreground mb-3"
+          >
+            {t("quickSetup.recommendedFlow")}
+          </h2>
+
+          <ol className="space-y-3">
+            {steps.map((step, index) => {
+              const query = queries[index];
+              const Icon = step.icon;
+              const isDone = query?.data === true;
+
+              return (
+                <li key={step.id}>
+                  <Card
+                    className={cn(
+                      "transition-shadow hover:shadow-md",
+                      isDone && "border-green-500/40 bg-green-500/5",
+                    )}
+                  >
+                    <CardContent className="flex items-center gap-4 p-4">
+                      {/* Step number / done tick */}
+                      <div
+                        className={cn(
+                          "flex h-9 w-9 shrink-0 items-center justify-center rounded-full font-semibold",
+                          isDone
+                            ? "bg-green-500 text-white"
+                            : "bg-primary/10 text-primary",
+                        )}
+                        aria-hidden
+                      >
+                        {isDone ? <Check className="h-5 w-5" /> : index + 1}
+                      </div>
+
+                      {/* Title + description */}
+                      <div className="flex-1 min-w-0">
+                        <div className="flex items-center gap-2 flex-wrap">
+                          <Icon className="h-4 w-4 text-muted-foreground shrink-0" />
+                          <h3 className="font-medium">{t(step.titleKey)}</h3>
+                          {isDone && (
+                            <Badge variant="outline" className="border-green-500/50 text-green-600 text-[10px]">
+                              {t("quickSetup.ready")}
+                            </Badge>
+                          )}
+                        </div>
+                        <p className="text-sm text-muted-foreground mt-0.5 line-clamp-2">
+                          {t(step.descriptionKey)}
+                        </p>
+                      </div>
+
+                      {/* CTA */}
+                      <div className="flex items-center gap-2 shrink-0">
+                        {step.helpKey && (
+                          <Tooltip>
+                            <TooltipTrigger asChild>
+                              <Button
+                                variant="ghost"
+                                size="sm"
+                                className="text-xs text-muted-foreground"
+                                aria-label={t("quickSetup.helpAria")}
+                              >
+                                ?
+                              </Button>
+                            </TooltipTrigger>
+                            <TooltipContent className="max-w-xs text-xs">
+                              {t(step.helpKey)}
+                            </TooltipContent>
+                          </Tooltip>
+                        )}
+                        <Button asChild size="sm" variant={isDone ? "outline" : "default"}>
+                          <Link to={step.to} className="flex items-center gap-1">
+                            {isDone ? t("quickSetup.review") : t("quickSetup.start")}
+                            <ChevronRight className="h-3.5 w-3.5" />
+                          </Link>
+                        </Button>
+                      </div>
+                    </CardContent>
+                  </Card>
+                </li>
+              );
+            })}
+          </ol>
+        </section>
+
+        {/* Quick creates */}
+        {quickCreates.length > 0 && (
+          <section aria-labelledby="quick-setup-other" className="pt-2">
+            <h2
+              id="quick-setup-other"
+              className="text-sm font-semibold uppercase tracking-wide text-muted-foreground mb-3"
+            >
+              {t("quickSetup.otherQuickCreates")}
+            </h2>
+
+            <div className="grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
+              {quickCreates.map((item) => {
+                const Icon = item.icon;
+                return (
+                  <Card key={item.id} className="transition-all hover:shadow-md hover:-translate-y-0.5">
+                    <CardHeader className="pb-2">
+                      <div className="flex items-center gap-2">
+                        <div className="flex h-8 w-8 items-center justify-center rounded-md bg-primary/10 text-primary">
+                          <Icon className="h-4 w-4" />
+                        </div>
+                        <CardTitle className="text-base">{t(item.titleKey)}</CardTitle>
+                      </div>
+                      <CardDescription className="line-clamp-2">
+                        {t(item.descriptionKey)}
+                      </CardDescription>
+                    </CardHeader>
+                    <CardContent>
+                      <Button asChild variant="secondary" size="sm" className="w-full">
+                        <Link to={item.to} className="flex items-center justify-center gap-1">
+                          {t("quickSetup.open")}
+                          <ChevronRight className="h-3.5 w-3.5" />
+                        </Link>
+                      </Button>
+                    </CardContent>
+                  </Card>
+                );
+              })}
+            </div>
+          </section>
+        )}
+      </div>
+    </TooltipProvider>
+  );
+}
+
+export default QuickSetupWizard;

src/components/RoleLayout.tsx

@@ -1,4 +1,6 @@
-import { Outlet, Link, useNavigate, useLocation } from "react-router-dom";
+import { Outlet, useNavigate } from "react-router-dom";
+import { Suspense } from "react";
+import { useTranslation } from "react-i18next";
 import { SidebarProvider, SidebarTrigger } from "@/components/ui/sidebar";
 import {
   Sidebar, SidebarContent, SidebarGroup, SidebarGroupContent,
@@ -8,22 +10,28 @@ import {
 import { NavLink } from "@/components/NavLink";
 import { useAuth, UserRole } from "@/contexts/AuthContext";
 import NotificationDropdown from "@/components/NotificationDropdown";
+import { ThemeToggle } from "@/components/ThemeToggle";
+import { LanguageToggle } from "@/components/LanguageToggle";
 import { Button } from "@/components/ui/button";
 import {
   DropdownMenu, DropdownMenuContent, DropdownMenuItem,
   DropdownMenuSeparator, DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
-import { LogOut, User, Settings, LucideIcon } from "lucide-react";
+import { LogOut, User, LucideIcon } from "lucide-react";
-import React from "react";
 
+/**
+ * Non-admin portal shell (student / teacher / etc.). Nav items hold i18n
+ * keys (`titleKey` / `labelKey`) rather than literal strings so they react
+ * to language changes without re-mounting the layout.
+ */
 export interface NavItem {
-  title: string;
+  titleKey: string;
   url: string;
   icon: LucideIcon;
 }
 
 export interface NavGroup {
-  label: string;
+  labelKey: string;
   items: NavItem[];
 }
 
@@ -34,30 +42,34 @@ interface RoleLayoutProps {
 
 function SidebarNav({ navGroups }: { navGroups: NavGroup[] }) {
   const { state } = useSidebar();
+  const { t } = useTranslation();
   const collapsed = state === "collapsed";
 
   return (
     <>
       {navGroups.map((group) => (
-        <SidebarGroup key={group.label}>
+        <SidebarGroup key={group.labelKey}>
-          <SidebarGroupLabel>{group.label}</SidebarGroupLabel>
+          <SidebarGroupLabel>{t(group.labelKey)}</SidebarGroupLabel>
           <SidebarGroupContent>
             <SidebarMenu>
-              {group.items.map((item) => (
+              {group.items.map((item) => {
-                <SidebarMenuItem key={item.url}>
+                const label = t(item.titleKey);
-                  <SidebarMenuButton asChild tooltip={item.title}>
+                return (
-                    <NavLink
+                  <SidebarMenuItem key={item.url}>
-                      to={item.url}
+                    <SidebarMenuButton asChild tooltip={label}>
-                      end={item.url.endsWith("/dashboard")}
+                      <NavLink
-                      className="flex items-center gap-2 px-2 py-1.5 rounded-md text-sm text-sidebar-foreground hover:bg-sidebar-accent transition-colors"
+                        to={item.url}
-                      activeClassName="bg-sidebar-accent text-sidebar-accent-foreground font-medium"
+                        end={item.url.endsWith("/dashboard")}
-                    >
+                        className="flex items-center gap-2 px-2 py-1.5 rounded-md text-sm text-sidebar-foreground hover:bg-sidebar-accent transition-colors"
-                      <item.icon className="h-4 w-4 shrink-0" />
+                        activeClassName="bg-sidebar-accent text-sidebar-accent-foreground font-medium"
-                      {!collapsed && <span>{item.title}</span>}
+                      >
-                    </NavLink>
+                        <item.icon className="h-4 w-4 shrink-0" />
-                  </SidebarMenuButton>
+                        {!collapsed && <span>{label}</span>}
-                </SidebarMenuItem>
+                      </NavLink>
-              ))}
+                    </SidebarMenuButton>
+                  </SidebarMenuItem>
+                );
+              })}
             </SidebarMenu>
           </SidebarGroupContent>
         </SidebarGroup>
@@ -66,9 +78,21 @@ function SidebarNav({ navGroups }: { navGroups: NavGroup[] }) {
   );
 }
 
+// Keeps the student/teacher sidebar + header mounted while the lazy route
+// chunk is fetching. See AdminLmsLayout for the rationale.
+function RouteContentFallback() {
+  return (
+    <div className="flex items-center justify-center py-20">
+      <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary" />
+    </div>
+  );
+}
+
 export default function RoleLayout({ navGroups, role }: RoleLayoutProps) {
   const { user, logout } = useAuth();
   const navigate = useNavigate();
+  const { t, i18n } = useTranslation();
+  const sidebarSide = i18n.dir() === "rtl" ? "right" : "left";
 
   const initials = user?.name?.split(" ").map(w => w[0]).join("").slice(0, 2).toUpperCase() ?? "??";
 
@@ -77,17 +101,25 @@ export default function RoleLayout({ navGroups, role }: RoleLayoutProps) {
     navigate("/login");
   };
 
+  const roleLabel = t(`roles.${role}`, { defaultValue: role });
+  const portalTitle = `${roleLabel} ${t("chrome.portalSuffix")}`.trim();
+
   return (
     <SidebarProvider>
       <div className="min-h-screen flex w-full">
-        <Sidebar collapsible="icon">
+        <Sidebar side={sidebarSide} collapsible="icon">
           <SidebarHeader className="p-4">
             <div className="flex items-center gap-2">
-              <img src="/logo.png" alt="EnCoach" className="h-8 w-8 rounded-lg shrink-0 object-contain" />
+              <img
-              <span className="text-lg font-bold tracking-tight text-sidebar-foreground group-data-[collapsible=icon]:hidden">
+                src="/logo.png"
-                <span className="text-[hsl(42,40%,62%)]">En</span>
+                alt={t("chrome.adminAlt")}
-                <span>Coach</span>
+                className="h-9 w-9 shrink-0 rounded-lg object-contain group-data-[collapsible=icon]:block hidden"
-              </span>
+              />
+              <img
+                src="/logo.png"
+                alt={t("chrome.adminAltLong")}
+                className="h-14 w-auto shrink-0 object-contain group-data-[collapsible=icon]:hidden"
+              />
             </div>
           </SidebarHeader>
           <SidebarSeparator />
@@ -101,7 +133,9 @@ export default function RoleLayout({ navGroups, role }: RoleLayoutProps) {
                 <span className="text-xs font-semibold text-primary">{initials}</span>
               </div>
               <div className="flex flex-col min-w-0 group-data-[collapsible=icon]:hidden">
-                <span className="text-sm font-medium truncate text-sidebar-foreground">{user?.name}</span>
+                <span className="text-sm font-medium truncate text-sidebar-foreground">
+                  {user?.name ?? t("userMenu.userFallback")}
+                </span>
                 <span className="text-xs text-muted-foreground truncate">{user?.email}</span>
               </div>
             </div>
@@ -111,10 +145,12 @@ export default function RoleLayout({ navGroups, role }: RoleLayoutProps) {
         <div className="flex-1 flex flex-col min-w-0">
           <header className="h-14 border-b bg-card flex items-center justify-between px-4 shrink-0">
             <div className="flex items-center gap-3">
-              <SidebarTrigger />
+              <SidebarTrigger aria-label={t("chrome.toggleSidebar")} />
-              <span className="text-sm font-medium text-muted-foreground capitalize">{role} Portal</span>
+              <span className="text-sm font-medium text-muted-foreground">{portalTitle}</span>
             </div>
             <div className="flex items-center gap-2">
+              <LanguageToggle />
+              <ThemeToggle />
               <NotificationDropdown />
               <DropdownMenu>
                 <DropdownMenuTrigger asChild>
@@ -126,23 +162,25 @@ export default function RoleLayout({ navGroups, role }: RoleLayoutProps) {
                 </DropdownMenuTrigger>
                 <DropdownMenuContent align="end" className="w-48">
                   <div className="px-3 py-2">
-                    <p className="text-sm font-medium">{user?.name}</p>
+                    <p className="text-sm font-medium">{user?.name ?? t("userMenu.userFallback")}</p>
                     <p className="text-xs text-muted-foreground">{user?.email}</p>
                   </div>
                   <DropdownMenuSeparator />
                   <DropdownMenuItem onClick={() => navigate(`/${role}/profile`)}>
-                    <User className="mr-2 h-4 w-4" /> Profile
+                    <User className="me-2 h-4 w-4" /> {t("userMenu.profile")}
                   </DropdownMenuItem>
                   <DropdownMenuSeparator />
                   <DropdownMenuItem onClick={handleLogout}>
-                    <LogOut className="mr-2 h-4 w-4" /> Logout
+                    <LogOut className="me-2 h-4 w-4" /> {t("userMenu.logout")}
                   </DropdownMenuItem>
                 </DropdownMenuContent>
               </DropdownMenu>
             </div>
           </header>
           <main className="flex-1 overflow-auto p-6">
-            <Outlet />
+            <Suspense fallback={<RouteContentFallback />}>
+              <Outlet />
+            </Suspense>
           </main>
         </div>
       </div>

src/components/StudentLayout.tsx

@@ -1,51 +1,62 @@
 import RoleLayout, { NavGroup } from "./RoleLayout";
+import ExamPopup from "./student/ExamPopup";
 import {
   LayoutDashboard, BookOpen, ClipboardList, BarChart3,
-  CalendarCheck, Calendar, User, Target, GraduationCap, ListChecks,
+  CalendarCheck, Calendar, User, Target, ListChecks,
   MessageSquare, Megaphone, Mail, TrendingUp,
 } from "lucide-react";
 
+/**
+ * Student portal shell. Nav items hold i18n keys which `RoleLayout`
+ * resolves via `useTranslation`, so switching language does not require
+ * re-mounting the layout.
+ */
 const navGroups: NavGroup[] = [
   {
-    label: "Learning",
+    labelKey: "sidebarGroup.learning",
     items: [
-      { title: "Dashboard", url: "/student/dashboard", icon: LayoutDashboard },
+      { titleKey: "nav.dashboard", url: "/student/dashboard", icon: LayoutDashboard },
-      { title: "My Courses", url: "/student/courses", icon: BookOpen },
+      { titleKey: "nav.myCourses", url: "/student/courses", icon: BookOpen },
-      { title: "Subject Registration", url: "/student/subject-registration", icon: ListChecks },
+      { titleKey: "nav.subjectRegistration", url: "/student/subject-registration", icon: ListChecks },
-      { title: "Assignments", url: "/student/assignments", icon: ClipboardList },
+      { titleKey: "nav.assignments", url: "/student/assignments", icon: ClipboardList },
     ],
   },
   {
-    label: "Adaptive Learning",
+    labelKey: "sidebarGroup.adaptiveLearning",
     items: [
-      { title: "My Subjects", url: "/student/subjects", icon: Target },
+      { titleKey: "nav.mySubjects", url: "/student/subjects", icon: Target },
     ],
   },
   {
-    label: "Progress",
+    labelKey: "sidebarGroup.progress",
     items: [
-      { title: "Grades", url: "/student/grades", icon: BarChart3 },
+      { titleKey: "nav.grades", url: "/student/grades", icon: BarChart3 },
-      { title: "Attendance", url: "/student/attendance", icon: CalendarCheck },
+      { titleKey: "nav.attendance", url: "/student/attendance", icon: CalendarCheck },
-      { title: "Timetable", url: "/student/timetable", icon: Calendar },
+      { titleKey: "nav.timetable", url: "/student/timetable", icon: Calendar },
-      { title: "My Journey", url: "/student/journey", icon: TrendingUp },
+      { titleKey: "nav.myJourney", url: "/student/journey", icon: TrendingUp },
     ],
   },
   {
-    label: "Communication",
+    labelKey: "sidebarGroup.communication",
     items: [
-      { title: "Discussions", url: "/student/discussions", icon: MessageSquare },
+      { titleKey: "nav.discussions", url: "/student/discussions", icon: MessageSquare },
-      { title: "Messages", url: "/student/messages", icon: Mail },
+      { titleKey: "nav.messages", url: "/student/messages", icon: Mail },
-      { title: "Announcements", url: "/student/announcements", icon: Megaphone },
+      { titleKey: "nav.announcements", url: "/student/announcements", icon: Megaphone },
     ],
   },
   {
-    label: "Account",
+    labelKey: "sidebarGroup.account",
     items: [
-      { title: "Profile", url: "/student/profile", icon: User },
+      { titleKey: "nav.profile", url: "/student/profile", icon: User },
     ],
   },
 ];
 
 export default function StudentLayout() {
-  return <RoleLayout navGroups={navGroups} role="student" />;
+  return (
+    <>
+      <RoleLayout navGroups={navGroups} role="student" />
+      <ExamPopup />
+    </>
+  );
 }

src/components/TaxonomyCascade.tsx

@@ -0,0 +1,143 @@
+import { useEffect } from "react";
+import { Label } from "@/components/ui/label";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Badge } from "@/components/ui/badge";
+import { Checkbox } from "@/components/ui/checkbox";
+import { useQuery } from "@tanstack/react-query";
+import { taxonomyService } from "@/services/taxonomy.service";
+import { lmsService } from "@/services/lms.service";
+
+interface TaxonomyCascadeProps {
+  subjectId: string;
+  onSubjectChange: (id: string) => void;
+  domainId: string;
+  onDomainChange: (id: string) => void;
+  topicIds: number[];
+  onTopicIdsChange: (ids: number[]) => void;
+  objectiveIds: number[];
+  onObjectiveIdsChange: (ids: number[]) => void;
+}
+
+export function TaxonomyCascade({
+  subjectId, onSubjectChange,
+  domainId, onDomainChange,
+  topicIds, onTopicIdsChange,
+  objectiveIds, onObjectiveIdsChange,
+}: TaxonomyCascadeProps) {
+  const { data: subjects } = useQuery({
+    queryKey: ["taxonomy", "subjects"],
+    queryFn: () => taxonomyService.listSubjects(),
+  });
+
+  const numericSubjectId = subjectId !== "none" ? Number(subjectId) : undefined;
+  const numericDomainId = domainId !== "none" ? Number(domainId) : undefined;
+
+  const { data: domains } = useQuery({
+    queryKey: ["taxonomy", "domains", numericSubjectId],
+    queryFn: () => taxonomyService.listDomains({ subject_id: numericSubjectId }),
+    enabled: !!numericSubjectId,
+  });
+
+  const { data: topics } = useQuery({
+    queryKey: ["taxonomy", "topics", numericDomainId],
+    queryFn: () => taxonomyService.listTopics({ domain_id: numericDomainId }),
+    enabled: !!numericDomainId,
+  });
+
+  const { data: objectivesData } = useQuery({
+    queryKey: ["learning-objectives", topicIds],
+    queryFn: () => lmsService.listLearningObjectives({ topic_ids: topicIds.join(",") }),
+    enabled: topicIds.length > 0,
+  });
+  const objectives = objectivesData?.items ?? [];
+
+  useEffect(() => {
+    if (subjectId === "none") {
+      if (domainId !== "none") onDomainChange("none");
+      if (topicIds.length > 0) onTopicIdsChange([]);
+      if (objectiveIds.length > 0) onObjectiveIdsChange([]);
+    }
+  }, [subjectId]);
+
+  useEffect(() => {
+    if (domainId === "none") {
+      if (topicIds.length > 0) onTopicIdsChange([]);
+      if (objectiveIds.length > 0) onObjectiveIdsChange([]);
+    }
+  }, [domainId]);
+
+  const toggleTopic = (id: number) => {
+    const next = topicIds.includes(id) ? topicIds.filter(t => t !== id) : [...topicIds, id];
+    onTopicIdsChange(next);
+    if (next.length === 0 && objectiveIds.length > 0) onObjectiveIdsChange([]);
+  };
+
+  const toggleObjective = (id: number) => {
+    onObjectiveIdsChange(
+      objectiveIds.includes(id) ? objectiveIds.filter(o => o !== id) : [...objectiveIds, id],
+    );
+  };
+
+  return (
+    <div className="space-y-3">
+      <div className="grid grid-cols-2 gap-3">
+        <div className="space-y-1.5">
+          <Label className="text-xs">Subject</Label>
+          <Select value={subjectId} onValueChange={(v) => { onSubjectChange(v); if (v === "none") { onDomainChange("none"); } }}>
+            <SelectTrigger className="h-8 text-sm"><SelectValue placeholder="Select subject" /></SelectTrigger>
+            <SelectContent>
+              <SelectItem value="none">None</SelectItem>
+              {(subjects ?? []).map(s => <SelectItem key={s.id} value={String(s.id)}>{s.name}</SelectItem>)}
+            </SelectContent>
+          </Select>
+        </div>
+        <div className="space-y-1.5">
+          <Label className="text-xs">Domain</Label>
+          <Select value={domainId} onValueChange={onDomainChange} disabled={!numericSubjectId}>
+            <SelectTrigger className="h-8 text-sm"><SelectValue placeholder={numericSubjectId ? "Select domain" : "Select subject first"} /></SelectTrigger>
+            <SelectContent>
+              <SelectItem value="none">None</SelectItem>
+              {(domains ?? []).map(d => <SelectItem key={d.id} value={String(d.id)}>{d.name}</SelectItem>)}
+            </SelectContent>
+          </Select>
+        </div>
+      </div>
+
+      {numericDomainId && (topics ?? []).length > 0 && (
+        <div className="space-y-1.5">
+          <Label className="text-xs">Topics</Label>
+          <div className="flex flex-wrap gap-1.5 p-2 rounded border bg-muted/30 max-h-[100px] overflow-y-auto">
+            {(topics ?? []).map(t => (
+              <Badge
+                key={t.id}
+                variant={topicIds.includes(t.id) ? "default" : "outline"}
+                className="cursor-pointer select-none text-xs"
+                onClick={() => toggleTopic(t.id)}
+              >
+                {t.name}
+              </Badge>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {topicIds.length > 0 && objectives.length > 0 && (
+        <div className="space-y-1.5">
+          <Label className="text-xs">Learning Objectives</Label>
+          <div className="space-y-1 p-2 rounded border bg-muted/30 max-h-[100px] overflow-y-auto">
+            {objectives.map(o => (
+              <label key={o.id} className="flex items-center gap-2 text-xs cursor-pointer">
+                <Checkbox
+                  checked={objectiveIds.includes(o.id)}
+                  onCheckedChange={() => toggleObjective(o.id)}
+                />
+                <span>{o.name}</span>
+                {o.bloom_level && <Badge variant="outline" className="text-[10px] h-4">{o.bloom_level}</Badge>}
+              </label>
+            ))}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

src/components/TeacherLayout.tsx

@@ -1,38 +1,41 @@
 import RoleLayout, { NavGroup } from "./RoleLayout";
 import {
-  LayoutDashboard, BookOpen, ClipboardList, FileText,
+  LayoutDashboard, BookOpen, ClipboardList,
   CalendarCheck, Users, Calendar, User, MessageSquare,
-  Megaphone, Wand2,
+  Megaphone, Library, Sparkles,
 } from "lucide-react";
 
+/** Teacher portal shell. See `StudentLayout` for the nav-config rationale. */
 const navGroups: NavGroup[] = [
   {
-    label: "Teaching",
+    labelKey: "sidebarGroup.teaching",
     items: [
-      { title: "Dashboard", url: "/teacher/dashboard", icon: LayoutDashboard },
+      { titleKey: "nav.quickSetup", url: "/teacher/quick-setup", icon: Sparkles },
-      { title: "Courses", url: "/teacher/courses", icon: BookOpen },
+      { titleKey: "nav.dashboard", url: "/teacher/dashboard", icon: LayoutDashboard },
-      { title: "Assignments", url: "/teacher/assignments", icon: ClipboardList },
+      { titleKey: "nav.courses", url: "/teacher/courses", icon: BookOpen },
+      { titleKey: "nav.resourceLibrary", url: "/teacher/library", icon: Library },
+      { titleKey: "nav.assignments", url: "/teacher/assignments", icon: ClipboardList },
     ],
   },
   {
-    label: "Management",
+    labelKey: "sidebarGroup.management",
     items: [
-      { title: "Attendance", url: "/teacher/attendance", icon: CalendarCheck },
+      { titleKey: "nav.attendance", url: "/teacher/attendance", icon: CalendarCheck },
-      { title: "Students", url: "/teacher/students", icon: Users },
+      { titleKey: "nav.students", url: "/teacher/students", icon: Users },
-      { title: "Timetable", url: "/teacher/timetable", icon: Calendar },
+      { titleKey: "nav.timetable", url: "/teacher/timetable", icon: Calendar },
     ],
   },
   {
-    label: "Communication",
+    labelKey: "sidebarGroup.communication",
     items: [
-      { title: "Discussions", url: "/teacher/discussions", icon: MessageSquare },
+      { titleKey: "nav.discussions", url: "/teacher/discussions", icon: MessageSquare },
-      { title: "Announcements", url: "/teacher/announcements", icon: Megaphone },
+      { titleKey: "nav.announcements", url: "/teacher/announcements", icon: Megaphone },
     ],
   },
   {
-    label: "Account",
+    labelKey: "sidebarGroup.account",
     items: [
-      { title: "Profile", url: "/teacher/profile", icon: User },
+      { titleKey: "nav.profile", url: "/teacher/profile", icon: User },
     ],
   },
 ];

src/components/ThemeToggle.tsx

@@ -0,0 +1,71 @@
+import { Moon, Sun, Monitor } from "lucide-react";
+import { useTheme } from "next-themes";
+import { useEffect, useState } from "react";
+import { useTranslation } from "react-i18next";
+
+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+
+/**
+ * Light/dark/system theme toggle.
+ *
+ * We intentionally render a neutral placeholder until `next-themes` has
+ * hydrated — otherwise the first client render disagrees with the server-less
+ * pre-render and the icon briefly flashes the wrong state.
+ */
+export function ThemeToggle() {
+  const { theme, setTheme, resolvedTheme } = useTheme();
+  const [mounted, setMounted] = useState(false);
+  const { t } = useTranslation();
+
+  useEffect(() => {
+    setMounted(true);
+  }, []);
+
+  const isDark = mounted && (resolvedTheme ?? theme) === "dark";
+
+  return (
+    <DropdownMenu>
+      <DropdownMenuTrigger asChild>
+        <Button
+          variant="ghost"
+          size="icon"
+          aria-label={t("theme.toggleLabel")}
+          title={t("theme.toggleLabel")}
+          className="text-muted-foreground hover:text-foreground"
+        >
+          {mounted ? (
+            isDark ? (
+              <Moon className="h-4 w-4" />
+            ) : (
+              <Sun className="h-4 w-4" />
+            )
+          ) : (
+            <Sun className="h-4 w-4 opacity-0" />
+          )}
+        </Button>
+      </DropdownMenuTrigger>
+      <DropdownMenuContent align="end" className="w-36">
+        <DropdownMenuItem onClick={() => setTheme("light")}>
+          <Sun className="me-2 h-4 w-4" /> {t("theme.light")}
+          {theme === "light" && <span className="ms-auto text-xs text-muted-foreground">✓</span>}
+        </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => setTheme("dark")}>
+          <Moon className="me-2 h-4 w-4" /> {t("theme.dark")}
+          {theme === "dark" && <span className="ms-auto text-xs text-muted-foreground">✓</span>}
+        </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => setTheme("system")}>
+          <Monitor className="me-2 h-4 w-4" /> {t("theme.system")}
+          {theme === "system" && <span className="ms-auto text-xs text-muted-foreground">✓</span>}
+        </DropdownMenuItem>
+      </DropdownMenuContent>
+    </DropdownMenu>
+  );
+}
+
+export default ThemeToggle;

src/components/ai/AiAlertBanner.tsx

@@ -1,5 +1,6 @@
 import { useState } from "react";
 import { useQuery } from "@tanstack/react-query";
+import { useTranslation } from "react-i18next";
 import { AlertTriangle, X, Sparkles, Loader2 } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { analyticsService } from "@/services/analytics.service";
@@ -7,32 +8,34 @@ import { analyticsService } from "@/services/analytics.service";
 export default function AiAlertBanner() {
   const [dismissedIds, setDismissedIds] = useState<Set<string>>(() => new Set());
   const [errorDismissed, setErrorDismissed] = useState(false);
+  const { t } = useTranslation();
 
-  const { data: alerts, isLoading, isError, error } = useQuery({
+  const { data: resp, isLoading, isError, error } = useQuery({
     queryKey: ["ai", "alerts"],
     queryFn: () => analyticsService.getAlerts(),
   });
 
-  const visible = alerts?.filter((a) => !dismissedIds.has(a.id)) ?? [];
+  const alerts = resp?.alerts ?? [];
+  const visible = alerts.filter((a, i) => !dismissedIds.has(String(i)));
 
   if (isLoading) {
     return (
       <div className="rounded-lg border border-warning/30 bg-warning/10 p-4 flex items-center gap-3">
         <Loader2 className="h-5 w-5 animate-spin text-warning shrink-0" />
-        <p className="text-sm text-muted-foreground">Loading alerts…</p>
+        <p className="text-sm text-muted-foreground">{t("ai.loadingAlerts")}</p>
       </div>
     );
   }
 
   if (isError && !errorDismissed) {
     return (
-      <div className="rounded-lg border border-warning/30 bg-warning/10 p-4 flex items-start gap-3">
+      <div className="rounded-lg border border-warning/30 bg-warning/10 p-4 flex items-start gap-3" dir="auto">
         <AlertTriangle className="h-5 w-5 text-warning shrink-0 mt-0.5" />
-        <div className="flex-1">
+        <div className="flex-1 min-w-0">
           <p className="text-sm font-medium flex items-center gap-1">
-            <Sparkles className="h-3 w-3 text-primary" /> Alerts unavailable
+            <Sparkles className="h-3 w-3 text-primary shrink-0" /> {t("ai.alertsUnavailable")}
           </p>
-          <p className="text-sm text-muted-foreground mt-1">{error instanceof Error ? error.message : "Could not load alerts."}</p>
+          <p className="text-sm text-muted-foreground mt-1">{error instanceof Error ? error.message : t("ai.couldNotLoadAlerts")}</p>
         </div>
         <Button variant="ghost" size="icon" className="h-7 w-7 shrink-0" onClick={() => setErrorDismissed(true)}>
           <X className="h-4 w-4" />
@@ -43,11 +46,11 @@ export default function AiAlertBanner() {
 
   if (isError && errorDismissed) return null;
 
-  if (!alerts?.length) {
+  if (!alerts.length) {
     return (
       <div className="rounded-lg border border-muted bg-muted/20 p-4 flex items-start gap-3">
         <Sparkles className="h-5 w-5 text-muted-foreground shrink-0 mt-0.5" />
-        <p className="text-sm text-muted-foreground">No AI alerts right now.</p>
+        <p className="text-sm text-muted-foreground">{t("ai.noAlertsRightNow")}</p>
       </div>
     );
   }
@@ -56,12 +59,12 @@ export default function AiAlertBanner() {
 
   return (
     <div className="space-y-3">
-      {visible.map((alert) => (
+      {visible.map((alert, idx) => (
-        <div key={alert.id} className="rounded-lg border border-warning/30 bg-warning/10 p-4 flex items-start gap-3">
+        <div key={idx} className="rounded-lg border border-warning/30 bg-warning/10 p-4 flex items-start gap-3" dir="auto">
           <AlertTriangle className="h-5 w-5 text-warning shrink-0 mt-0.5" />
-          <div className="flex-1">
+          <div className="flex-1 min-w-0">
             <p className="text-sm font-medium flex items-center gap-1">
-              <Sparkles className="h-3 w-3 text-primary" /> {alert.title}
+              <Sparkles className="h-3 w-3 text-primary shrink-0" /> {alert.title}
             </p>
             <p className="text-sm text-muted-foreground mt-1">{alert.description}</p>
           </div>
@@ -69,7 +72,7 @@ export default function AiAlertBanner() {
             variant="ghost"
             size="icon"
             className="h-7 w-7 shrink-0"
-            onClick={() => setDismissedIds((prev) => new Set(prev).add(alert.id))}
+            onClick={() => setDismissedIds((prev) => new Set(prev).add(String(idx)))}
           >
             <X className="h-4 w-4" />
           </Button>

src/components/ai/AiAssistantDrawer.tsx

@@ -1,6 +1,7 @@
-import { useState } from "react";
+import { useMemo, useState } from "react";
 import { useMutation } from "@tanstack/react-query";
 import { useLocation } from "react-router-dom";
+import { useTranslation } from "react-i18next";
 import { Sheet, SheetContent, SheetHeader, SheetTitle } from "@/components/ui/sheet";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
@@ -8,38 +9,43 @@ import { Sparkles, Send, Loader2 } from "lucide-react";
 import { coachingService } from "@/services/coaching.service";
 import { useToast } from "@/hooks/use-toast";
 
-const quickActions = [
-  "Platform health summary",
-  "Show dropout risks",
-  "Compare course performance",
-  "Suggest batch improvements",
-];
-
 export default function AiAssistantDrawer() {
   const [open, setOpen] = useState(false);
   const [messages, setMessages] = useState<{ role: "user" | "ai"; text: string }[]>([]);
   const [input, setInput] = useState("");
   const location = useLocation();
   const { toast } = useToast();
+  const { t } = useTranslation();
+
+  // Re-compute when language switches so quick-action chips show translated
+  // labels immediately. Chips are stored by label (what we send to the
+  // backend), so localizing the label is safe here — the backend treats
+  // them as free-form prompts.
+  const quickActions = useMemo(
+    () => [
+      t("ai.quickHealth"),
+      t("ai.quickDropouts"),
+      t("ai.quickCompare"),
+      t("ai.quickBatch"),
+    ],
+    [t],
+  );
 
   const chatMutation = useMutation({
     mutationFn: (message: string) =>
       coachingService.chat({ message, context: { page: location.pathname } }),
     onSuccess: (data) => {
-      setMessages((prev) => [...prev, { role: "ai", text: data.message }]);
+      setMessages((prev) => [...prev, { role: "ai", text: data.reply }]);
     },
     onError: (err: Error) => {
       toast({
         variant: "destructive",
-        title: "Could not get a reply",
+        title: t("ai.replyErrorTitle"),
-        description: err.message || "Something went wrong. Try again.",
+        description: err.message || t("ai.replyErrorDesc"),
       });
       setMessages((prev) => [
         ...prev,
-        {
+        { role: "ai", text: t("ai.fallbackReply") },
-          role: "ai",
-          text: "Sorry, I could not reach the assistant. Please try again in a moment.",
-        },
       ]);
     },
   });
@@ -56,8 +62,9 @@ export default function AiAssistantDrawer() {
     <>
       <button
         onClick={() => setOpen(true)}
-        className="fixed bottom-20 right-6 z-50 flex h-12 w-12 items-center justify-center rounded-full bg-primary text-primary-foreground shadow-lg hover:opacity-90 transition-opacity"
+        className="fixed bottom-20 end-6 z-50 flex h-12 w-12 items-center justify-center rounded-full bg-primary text-primary-foreground shadow-lg hover:opacity-90 transition-opacity"
-        aria-label="AI Assistant"
+        aria-label={t("ai.assistantLabel")}
+        title={t("ai.assistantLabel")}
       >
         <Sparkles className="h-5 w-5" />
       </button>
@@ -67,7 +74,7 @@ export default function AiAssistantDrawer() {
           <SheetHeader>
             <SheetTitle className="flex items-center gap-2">
               <Sparkles className="h-5 w-5 text-primary" />
-              EnCoach AI Assistant
+              {t("ai.assistantTitle")}
             </SheetTitle>
           </SheetHeader>
 
@@ -90,8 +97,8 @@ export default function AiAssistantDrawer() {
             {messages.length === 0 && (
               <div className="text-center text-muted-foreground text-sm py-8">
                 <Sparkles className="h-8 w-8 mx-auto mb-3 text-primary/40" />
-                <p>Ask me anything about the platform,</p>
+                <p>{t("ai.emptyLine1")}</p>
-                <p>or click a quick action above.</p>
+                <p>{t("ai.emptyLine2")}</p>
               </div>
             )}
             {messages.map((msg, i) => (
@@ -99,27 +106,27 @@ export default function AiAssistantDrawer() {
                 key={i}
                 className={`rounded-lg p-3 text-sm ${
                   msg.role === "user"
-                    ? "bg-primary text-primary-foreground ml-8"
+                    ? "bg-primary text-primary-foreground ms-8"
-                    : "bg-muted mr-8"
+                    : "bg-muted me-8"
                 }`}
               >
                 {msg.role === "ai" && (
-                  <Sparkles className="h-3 w-3 text-primary inline mr-1.5 -mt-0.5" />
+                  <Sparkles className="h-3 w-3 text-primary inline me-1.5 -mt-0.5" />
                 )}
                 {msg.text}
               </div>
             ))}
             {chatMutation.isPending && (
-              <div className="bg-muted rounded-lg p-3 text-sm mr-8 flex items-center gap-2">
+              <div className="bg-muted rounded-lg p-3 text-sm me-8 flex items-center gap-2">
                 <Loader2 className="h-4 w-4 animate-spin text-primary" />
-                <span className="text-muted-foreground">Thinking...</span>
+                <span className="text-muted-foreground">{t("ai.thinking")}</span>
               </div>
             )}
           </div>
 
           <div className="flex gap-2 pt-3 border-t mt-auto">
             <Input
-              placeholder="Ask anything..."
+              placeholder={t("ai.placeholder")}
               value={input}
               onChange={(e) => setInput(e.target.value)}
               onKeyDown={(e) => e.key === "Enter" && handleSend(input)}
@@ -128,6 +135,8 @@ export default function AiAssistantDrawer() {
               size="icon"
               onClick={() => handleSend(input)}
               disabled={!input.trim() || chatMutation.isPending}
+              aria-label={t("ai.send")}
+              title={t("ai.send")}
             >
               <Send className="h-4 w-4" />
             </Button>

src/components/ai/AiBatchOptimizer.tsx

@@ -25,6 +25,8 @@ export default function AiBatchOptimizer({ batchId }: Props) {
     },
   });
 
+  type OptResult = Awaited<ReturnType<typeof analyticsService.getBatchOptimization>>;
+
   const handleOpen = () => {
     if (batchId == null) {
       toast({
@@ -39,9 +41,23 @@ export default function AiBatchOptimizer({ batchId }: Props) {
     mutation.mutate(batchId);
   };
 
+  const applyMutation = useMutation({
+    mutationFn: () => analyticsService.applyBatchOptimization(batchId!, mutation.data?.optimized ?? []),
+    onSuccess: (res) => {
+      toast({ title: "Suggestion Applied", description: `${res.applied} optimization(s) saved successfully.` });
+      setOpen(false);
+    },
+    onError: (err: Error) => {
+      toast({
+        variant: "destructive",
+        title: "Apply failed",
+        description: err.message || "Could not apply batch optimization.",
+      });
+    },
+  });
+
   const handleApply = () => {
-    toast({ title: "Suggestion Applied", description: "Batch split recommendation has been saved successfully." });
+    applyMutation.mutate();
-    setOpen(false);
   };
 
   const onOpenChange = (next: boolean) => {
@@ -49,9 +65,10 @@ export default function AiBatchOptimizer({ batchId }: Props) {
     if (!next) mutation.reset();
   };
 
-  const suggestions = mutation.data ?? [];
+  const optData = mutation.data as OptResult | undefined;
-  const showResults = !mutation.isPending && !mutation.isError && suggestions.length > 0;
+  const hasSuggestions = !!optData?.summary;
-  const showEmpty = !mutation.isPending && !mutation.isError && mutation.isSuccess && suggestions.length === 0;
+  const showResults = !mutation.isPending && !mutation.isError && hasSuggestions;
+  const showEmpty = !mutation.isPending && !mutation.isError && mutation.isSuccess && !hasSuggestions;
 
   return (
     <>
@@ -71,20 +88,28 @@ export default function AiBatchOptimizer({ batchId }: Props) {
             </div>
           ) : mutation.isError ? (
             <p className="text-sm text-muted-foreground py-4 text-center">Something went wrong. Try again.</p>
-          ) : showResults ? (
+          ) : showResults && optData ? (
             <div className="space-y-4">
-              <div className="space-y-3 max-h-[50vh] overflow-y-auto">
+              <div className="rounded-lg bg-muted/30 p-4 border border-border/60">
-                {suggestions.map((s, i) => (
+                <p className="text-xs font-semibold text-primary uppercase tracking-wide mb-1">{optData.impact} impact</p>
-                  <div key={i} className="rounded-lg bg-muted/30 p-4 border border-border/60">
+                <p className="text-sm font-medium">{optData.summary}</p>
-                    <p className="text-xs font-semibold text-primary uppercase tracking-wide mb-1">{s.impact} impact</p>
-                    <p className="text-sm font-medium">{s.suggestion}</p>
-                    {s.details ? <p className="text-sm text-muted-foreground mt-2 leading-relaxed">{s.details}</p> : null}
-                  </div>
-                ))}
               </div>
+              {Array.isArray(optData.optimized) && optData.optimized.length > 0 && (
+                <div className="space-y-2 max-h-[40vh] overflow-y-auto">
+                  {optData.optimized.map((item, i) => (
+                    <div key={i} className="rounded-lg bg-muted/20 p-3 border text-sm">
+                      {typeof item === "object" && item !== null ? JSON.stringify(item) : String(item)}
+                    </div>
+                  ))}
+                </div>
+              )}
               <div className="flex gap-2">
-                <Button className="flex-1" onClick={handleApply}>
+                <Button className="flex-1" onClick={handleApply} disabled={applyMutation.isPending}>
-                  Apply Suggestion
+                  {applyMutation.isPending ? (
+                    <><Loader2 className="h-4 w-4 mr-2 animate-spin" /> Applying...</>
+                  ) : (
+                    "Apply Suggestion"
+                  )}
                 </Button>
                 <Button variant="outline" onClick={() => onOpenChange(false)}>
                   Dismiss

src/components/ai/AiGeneratorModal.tsx

@@ -40,8 +40,9 @@ export default function AiGeneratorModal() {
         difficulty,
         count,
       }),
-    onSuccess: (res) => {
+    onSuccess: (res: Record<string, unknown>) => {
-      setLocalExercises(Array.isArray(res.exercises) ? res.exercises : []);
+      const items = Array.isArray(res.questions) ? res.questions : Array.isArray(res.exercises) ? res.exercises : [];
+      setLocalExercises(items);
     },
     onError: (err: Error) => {
       toast({
@@ -57,6 +58,21 @@ export default function AiGeneratorModal() {
     generateMutation.mutate();
   };
 
+  const saveMutation = useMutation({
+    mutationFn: () => generationService.saveGenerated(moduleType, localExercises ?? []),
+    onSuccess: (res) => {
+      toast({ title: "Saved", description: `${res.saved} assignments saved successfully.` });
+      setOpen(false);
+    },
+    onError: (err: Error) => {
+      toast({
+        variant: "destructive",
+        title: "Save failed",
+        description: err.message || "Could not save generated assignments.",
+      });
+    },
+  });
+
   const generated = localExercises;
 
   const handleRemove = (index: number) => {
@@ -188,7 +204,17 @@ export default function AiGeneratorModal() {
               );
             })}
             <div className="flex gap-2">
-              <Button className="flex-1">Save All</Button>
+              <Button
+                className="flex-1"
+                onClick={() => saveMutation.mutate()}
+                disabled={saveMutation.isPending || !generated?.length}
+              >
+                {saveMutation.isPending ? (
+                  <><Loader2 className="h-4 w-4 mr-2 animate-spin" /> Saving...</>
+                ) : (
+                  "Save All"
+                )}
+              </Button>
               <Button
                 variant="outline"
                 onClick={() => {

src/components/ai/AiGradeExplainer.tsx

@@ -19,8 +19,8 @@ export default function AiGradeExplainer({
   const explainMutation = useMutation({
     mutationFn: () =>
       coachingService.explain({
-        context: `IELTS / course grades for student: ${studentName}. Summarize what the scores mean and what to focus on next.`,
+        score_data: scores ?? {},
-        scores,
+        student_context: `IELTS / course grades for student: ${studentName}. Summarize what the scores mean and what to focus on next.`,
       }),
     onError: (err: Error) => {
       toast({

src/components/ai/AiGradingAssistant.tsx

@@ -26,9 +26,8 @@ export default function AiGradingAssistant({
   const gradeMutation = useMutation({
     mutationFn: () =>
       analyticsService.getGradingSuggestion({
-        submission_id: submissionId,
+        submission_text: submissionText,
-        text: submissionText,
+        skill: "writing",
-        ...(rubricId !== undefined ? { rubric_id: rubricId } : {}),
       }),
     onError: (err: Error) => {
       toast({
@@ -45,7 +44,7 @@ export default function AiGradingAssistant({
   }, [submissionId, submissionText, rubricId]);
 
   const data = gradeMutation.data;
-  const marks = data ? Math.round(data.overall_score) : 0;
+  const marks = data ? Math.round(data.overall_band * 100 / 9) : 0;
   const feedbackBlock = data
     ? [
         data.feedback,

src/components/ai/AiInsightsPanel.tsx

@@ -1,32 +1,32 @@
 import { useEffect, useMemo } from "react";
 import { useMutation } from "@tanstack/react-query";
+import { useTranslation } from "react-i18next";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
-import { Sparkles, TrendingUp, AlertTriangle, Trophy, Loader2 } from "lucide-react";
+import { Sparkles, TrendingUp, AlertTriangle, Info, Loader2 } from "lucide-react";
-import { analyticsService } from "@/services/analytics.service";
+import { analyticsService, type AiInsightItem } from "@/services/analytics.service";
-import type { AiInsight } from "@/types";
 import { useToast } from "@/hooks/use-toast";
 
 const EMPTY_PAYLOAD: Record<string, unknown> = {};
 
-function insightIcon(type: AiInsight["type"]) {
+function insightIcon(severity: AiInsightItem["severity"]) {
-  switch (type) {
+  switch (severity) {
-    case "positive":
+    case "critical":
-      return Trophy;
-    case "warning":
       return AlertTriangle;
-    default:
+    case "warning":
       return TrendingUp;
+    default:
+      return Info;
   }
 }
 
-function insightColor(type: AiInsight["type"]) {
+function insightColor(severity: AiInsightItem["severity"]) {
-  switch (type) {
+  switch (severity) {
-    case "positive":
+    case "critical":
-      return "text-primary";
+      return "text-destructive";
     case "warning":
       return "text-warning";
     default:
-      return "text-success";
+      return "text-primary";
   }
 }
 
@@ -36,14 +36,15 @@ interface Props {
 
 export default function AiInsightsPanel({ data = EMPTY_PAYLOAD }: Props) {
   const { toast } = useToast();
+  const { t } = useTranslation();
   const payloadKey = useMemo(() => JSON.stringify(data), [data]);
 
   const mutation = useMutation({
     mutationFn: (payload: Record<string, unknown>) => analyticsService.getInsights(payload),
     onError: (err: Error) => {
       toast({
-        title: "Insights unavailable",
+        title: t("ai.insightsUnavailable"),
-        description: err.message || "Could not load AI insights.",
+        description: err.message || t("ai.couldNotLoadInsights"),
         variant: "destructive",
       });
     },
@@ -51,47 +52,47 @@ export default function AiInsightsPanel({ data = EMPTY_PAYLOAD }: Props) {
 
   useEffect(() => {
     mutation.mutate(data);
-    // eslint-disable-next-line react-hooks/exhaustive-deps -- refetch when serialized payload changes
+    // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [payloadKey]);
 
-  const items = mutation.data ?? [];
+  const items = mutation.data?.insights ?? [];
 
   return (
     <Card className="border-0 shadow-sm">
       <CardHeader className="pb-3">
         <CardTitle className="text-base font-semibold flex items-center gap-2">
           <Sparkles className="h-4 w-4 text-primary" />
-          AI Platform Insights
+          {t("ai.platformInsightsTitle")}
         </CardTitle>
       </CardHeader>
       <CardContent>
         {mutation.isPending && (
           <div className="flex items-center gap-2 text-sm text-muted-foreground py-8 justify-center">
             <Loader2 className="h-5 w-5 animate-spin text-primary" />
-            Loading insights…
+            {t("ai.loadingInsights")}
           </div>
         )}
         {mutation.isError && !mutation.isPending && (
-          <p className="text-sm text-muted-foreground py-4 text-center">Could not load insights.</p>
+          <p className="text-sm text-muted-foreground py-4 text-center">{t("ai.couldNotLoadInsights")}</p>
         )}
         {mutation.isSuccess && items.length === 0 && (
-          <p className="text-sm text-muted-foreground py-4 text-center">No insights available for this view.</p>
+          <p className="text-sm text-muted-foreground py-4 text-center">{t("ai.noInsightsAvailable")}</p>
         )}
         {!mutation.isPending && items.length > 0 && (
           <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
-            {items.map((item) => {
+            {items.map((item, idx) => {
-              const Icon = insightIcon(item.type);
+              const Icon = insightIcon(item.severity);
-              const color = insightColor(item.type);
+              const color = insightColor(item.severity);
               return (
-                <div key={item.id} className="rounded-lg border bg-muted/30 p-4">
+                <div key={idx} className="rounded-lg border bg-muted/30 p-4" dir="auto">
                   <div className="flex items-center gap-2 mb-2">
-                    <Icon className={`h-4 w-4 ${color}`} />
+                    <Icon className={`h-4 w-4 shrink-0 ${color}`} />
-                    <span className="text-sm font-semibold">{item.title}</span>
+                    <span className="text-sm font-semibold min-w-0">{item.title}</span>
                   </div>
                   <p className="text-sm text-muted-foreground">{item.description}</p>
-                  {item.metric != null && item.value != null && (
+                  {item.recommendation && (
-                    <p className="text-xs text-muted-foreground mt-2">
+                    <p className="text-xs text-muted-foreground mt-2 italic">
-                      {item.metric}: {item.value}
+                      {item.recommendation}
                     </p>
                   )}
                 </div>

src/components/ai/AiSearchBar.tsx

@@ -1,5 +1,6 @@
 import { useState } from "react";
 import { useMutation } from "@tanstack/react-query";
+import { useTranslation } from "react-i18next";
 import { Input } from "@/components/ui/input";
 import { Sparkles, Search, Loader2, X } from "lucide-react";
 import { useNavigate } from "react-router-dom";
@@ -10,14 +11,15 @@ export default function AiSearchBar() {
   const [query, setQuery] = useState("");
   const navigate = useNavigate();
   const { toast } = useToast();
+  const { t } = useTranslation();
 
   const searchMutation = useMutation({
     mutationFn: (q: string) => analyticsService.search(q),
     onError: (err: Error) => {
       toast({
         variant: "destructive",
-        title: "Search failed",
+        title: t("chrome.aiSearchFailedTitle"),
-        description: err.message || "Could not complete AI search.",
+        description: err.message || t("chrome.aiSearchFailedDesc"),
       });
     },
   });
@@ -27,16 +29,16 @@ export default function AiSearchBar() {
     searchMutation.mutate(query.trim());
   };
 
-  const results = searchMutation.data;
+  const result = searchMutation.data;
 
   return (
     <div className="relative max-w-md w-full">
       <div className="relative">
-        <Sparkles className="absolute left-3 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-primary" />
+        <Sparkles className="absolute start-3 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-primary" />
-        <Search className="absolute left-7 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-muted-foreground" />
+        <Search className="absolute start-7 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-muted-foreground" />
         <Input
-          placeholder="Ask anything... e.g. 'Show students with low attendance'"
+          placeholder={t("chrome.aiSearchPlaceholder")}
-          className="pl-12 pr-8 h-9 text-sm bg-muted/50 border-0 focus-visible:ring-1"
+          className="ps-12 pe-8 h-9 text-sm bg-muted/50 border-0 focus-visible:ring-1"
           value={query}
           onChange={(e) => {
             setQuery(e.target.value);
@@ -50,50 +52,56 @@ export default function AiSearchBar() {
               setQuery("");
               searchMutation.reset();
             }}
-            className="absolute right-3 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
+            className="absolute end-3 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
           >
             <X className="h-3.5 w-3.5" />
           </button>
         )}
       </div>
 
-      {(searchMutation.isPending || results !== undefined) && (
+      {(searchMutation.isPending || result !== undefined) && (
-        <div className="absolute top-full mt-1 left-0 right-0 z-50 rounded-lg border bg-popover p-3 shadow-md">
+        <div className="absolute top-full mt-1 start-0 end-0 z-50 rounded-lg border bg-popover p-3 shadow-md">
           {searchMutation.isPending ? (
             <div className="flex items-center gap-2 text-sm text-muted-foreground">
               <Loader2 className="h-4 w-4 animate-spin text-primary" />
-              AI is searching...
+              {t("chrome.aiSearching")}
             </div>
-          ) : results && results.length > 0 ? (
+          ) : result?.answer ? (
             <div className="text-sm space-y-2 max-h-64 overflow-y-auto">
-              {results.map((r, i) => (
+              <div className="flex items-start gap-2 pb-2">
-                <div
+                <Sparkles className="h-4 w-4 text-primary shrink-0 mt-0.5" />
-                  key={`${r.title}-${i}`}
+                <p className="text-muted-foreground">{result.answer}</p>
-                  className="flex items-start gap-2 border-b border-border/60 pb-2 last:border-0 last:pb-0"
+              </div>
-                >
+              {result.suggestions?.length > 0 && (
-                  <Sparkles className="h-4 w-4 text-primary shrink-0 mt-0.5" />
+                <div className="border-t pt-2 space-y-1">
-                  <div className="min-w-0">
+                  <p className="text-xs font-semibold text-primary">{t("chrome.aiRelatedQueries")}</p>
-                    <p className="font-medium">{r.title}</p>
+                  {result.suggestions.map((s, i) => (
-                    <p className="text-muted-foreground text-xs mt-0.5">{r.description}</p>
+                    <button
-                    {r.url && (
+                      key={i}
-                      <button
+                      type="button"
-                        type="button"
+                      className="block text-xs text-primary hover:underline"
-                        className="text-xs text-primary mt-1 hover:underline"
+                      onClick={() => { setQuery(s); searchMutation.mutate(s); }}
-                        onClick={() => navigate(r.url!)}
+                    >
-                      >
+                      {s}
-                        Go to {r.url}
+                    </button>
-                      </button>
+                  ))}
-                    )}
-                  </div>
                 </div>
+              )}
+              {result.related_actions?.map((a, i) => (
+                <button
+                  key={i}
+                  type="button"
+                  className="text-xs text-primary hover:underline"
+                  onClick={() => navigate(a.action)}
+                >
+                  {a.label}
+                </button>
               ))}
             </div>
           ) : (
             <div className="text-sm flex items-start gap-2">
               <Sparkles className="h-4 w-4 text-primary shrink-0 mt-0.5" />
-              <p>
+              <p>{t("chrome.aiNoResults", { q: query })}</p>
-                No results for &quot;{query}&quot;. Try a different question or keyword.
-              </p>
             </div>
           )}
         </div>

src/components/ai/AiStudyCoach.tsx

@@ -29,8 +29,11 @@ export default function AiStudyCoach() {
     suggestMutation.mutate();
   };
 
-  const suggestions = suggestMutation.data?.suggestions ?? [];
+  const d = suggestMutation.data;
-  const planTips = suggestMutation.data?.study_plan_tips ?? [];
+  const suggestions = d ? [d.suggestion, ...(d.focus_areas ?? []).map((a: string) => `Focus area: ${a}`)].filter(Boolean) : [];
+  const planTips = d?.daily_plan?.length
+    ? d.daily_plan.map((p: { activity: string; duration_min: number; skill: string }) => `${p.activity} (${p.duration_min}min — ${p.skill})`)
+    : d?.motivation ? [d.motivation] : [];
 
   return (
     <Card className="border-0 shadow-sm bg-primary/5">

src/components/ai/AiTipBanner.tsx

@@ -1,5 +1,6 @@
 import { useState } from "react";
 import { useQuery } from "@tanstack/react-query";
+import { useTranslation } from "react-i18next";
 import { Sparkles, X, Loader2 } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { coachingService } from "@/services/coaching.service";
@@ -12,6 +13,7 @@ interface Props {
 
 export default function AiTipBanner({ context = "dashboard", variant = "tip", dismissible = true }: Props) {
   const [dismissed, setDismissed] = useState(false);
+  const { t } = useTranslation();
 
   const { data, isLoading, isError, error } = useQuery({
     queryKey: ["ai", "tip", context],
@@ -22,23 +24,30 @@ export default function AiTipBanner({ context = "dashboard", variant = "tip", di
 
   const bgClass = variant === "recommendation" ? "bg-accent/50 border-accent" : variant === "insight" ? "bg-primary/5 border-primary/20" : "bg-muted/50 border-muted-foreground/10";
 
+  const variantLabel =
+    variant === "insight"
+      ? t("ai.insightLabel")
+      : variant === "recommendation"
+      ? t("ai.recommendationLabel")
+      : t("ai.tipLabel");
+
   if (isLoading) {
     return (
       <div className={`rounded-lg border ${bgClass} p-3 flex items-center gap-3`}>
         <Loader2 className="h-4 w-4 animate-spin text-primary shrink-0" />
-        <span className="text-sm text-muted-foreground">Loading AI tip…</span>
+        <span className="text-sm text-muted-foreground">{t("ai.loadingTip")}</span>
       </div>
     );
   }
 
   if (isError || !data) {
     return (
-      <div className={`rounded-lg border ${bgClass} p-3 flex items-start gap-3`}>
+      <div className={`rounded-lg border ${bgClass} p-3 flex items-start gap-3`} dir="auto">
         <Sparkles className="h-4 w-4 text-primary shrink-0 mt-0.5" />
-        <div className="flex-1">
+        <div className="flex-1 min-w-0">
-          <span className="text-xs font-semibold text-primary">AI Tip</span>
+          <span className="block text-xs font-semibold text-primary">{t("ai.tipLabel")}</span>
           <p className="text-sm text-muted-foreground mt-0.5">
-            {isError ? (error instanceof Error ? error.message : "Could not load tip.") : "No tip available."}
+            {isError ? (error instanceof Error ? error.message : t("ai.couldNotLoadTip")) : t("ai.noTipAvailable")}
           </p>
         </div>
         {dismissible && (
@@ -50,26 +59,28 @@ export default function AiTipBanner({ context = "dashboard", variant = "tip", di
     );
   }
 
-  if (!data.content?.trim() && !data.title?.trim()) {
+  if (!data.tip?.trim()) {
     return (
-      <div className={`rounded-lg border ${bgClass} p-3 flex items-start gap-3`}>
+      <div className={`rounded-lg border ${bgClass} p-3 flex items-start gap-3`} dir="auto">
         <Sparkles className="h-4 w-4 text-primary shrink-0 mt-0.5" />
-        <div className="flex-1">
+        <div className="flex-1 min-w-0">
-          <span className="text-xs font-semibold text-primary">AI {variant === "tip" ? "Tip" : variant === "insight" ? "Insight" : "Recommendation"}</span>
+          <span className="block text-xs font-semibold text-primary">{variantLabel}</span>
-          <p className="text-sm text-muted-foreground mt-0.5">No tip for this context yet.</p>
+          <p className="text-sm text-muted-foreground mt-0.5">{t("ai.noTipForContext")}</p>
         </div>
       </div>
     );
   }
 
+  const label = data.category && data.category !== "general"
+    ? t("ai.categoryTipLabel", { category: data.category.charAt(0).toUpperCase() + data.category.slice(1) })
+    : variantLabel;
+
   return (
-    <div className={`rounded-lg border ${bgClass} p-3 flex items-start gap-3 animate-in fade-in slide-in-from-top-2 duration-300`}>
+    <div className={`rounded-lg border ${bgClass} p-3 flex items-start gap-3 animate-in fade-in slide-in-from-top-2 duration-300`} dir="auto">
       <Sparkles className="h-4 w-4 text-primary shrink-0 mt-0.5" />
-      <div className="flex-1">
+      <div className="flex-1 min-w-0">
-        <span className="text-xs font-semibold text-primary">
+        <span className="block text-xs font-semibold text-primary">{label}</span>
-          {data.title?.trim() || `AI ${variant === "tip" ? "Tip" : variant === "insight" ? "Insight" : "Recommendation"}`}
+        <p className="text-sm text-muted-foreground mt-0.5">{data.tip}</p>
-        </span>
-        <p className="text-sm text-muted-foreground mt-0.5">{data.content}</p>
       </div>
       {dismissible && (
         <Button variant="ghost" size="icon" className="h-6 w-6 shrink-0" onClick={() => setDismissed(true)}>

src/components/ai/AiWritingHelper.tsx

@@ -22,8 +22,9 @@ export default function AiWritingHelper({ text, task_type = "ielts_writing" }: P
   const mutation = useMutation({
     mutationFn: (mode: NonNullable<Mode>) =>
       coachingService.writingHelp({
-        text: text.trim(),
+        task: task_type,
-        task_type: `${task_type}:${mode}`,
+        draft: text.trim(),
+        help_type: mode,
       }),
     onSuccess: () => setShowResult(true),
     onError: (err: Error) => {
@@ -84,20 +85,20 @@ export default function AiWritingHelper({ text, task_type = "ielts_writing" }: P
 
         {showResult && !loading && mutation.data && activeMode === "improve" && (
           <div className="space-y-3">
-            {mutation.data.feedback && (
+            {mutation.data.tips?.length > 0 && (
               <div className="rounded-lg border bg-muted/30 p-3">
                 <p className="text-xs font-semibold text-primary mb-1 flex items-center gap-1">
                   <Sparkles className="h-3 w-3" /> Feedback
                 </p>
-                <p className="text-sm text-muted-foreground">{mutation.data.feedback}</p>
+                <p className="text-sm text-muted-foreground">{mutation.data.tips.join(" ")}</p>
               </div>
             )}
-            {mutation.data.improved && (
+            {mutation.data.improved_text && (
               <div className="rounded-lg border bg-muted/30 p-3">
                 <p className="text-xs font-semibold text-primary mb-1 flex items-center gap-1">
                   <Sparkles className="h-3 w-3" /> Improved Version
                 </p>
-                <p className="text-sm">{mutation.data.improved}</p>
+                <p className="text-sm">{mutation.data.improved_text}</p>
               </div>
             )}
           </div>
@@ -108,17 +109,17 @@ export default function AiWritingHelper({ text, task_type = "ielts_writing" }: P
             <p className="text-xs font-semibold text-primary mb-1 flex items-center gap-1">
               <Sparkles className="h-3 w-3" /> Grammar notes
             </p>
-            {(mutation.data.grammar_notes?.length ?? 0) > 0 ? (
+            {(mutation.data.changes?.length ?? 0) > 0 ? (
-              mutation.data.grammar_notes!.map((note, i) => (
+              mutation.data.changes.map((c, i) => (
                 <div key={i} className="text-sm border-l-2 border-warning pl-2">
-                  <p className="text-muted-foreground">{note}</p>
+                  <p className="text-muted-foreground"><strong>{c.original}</strong> → {c.revised} — {c.reason}</p>
                 </div>
               ))
             ) : (
               <p className="text-sm text-muted-foreground">No grammar issues flagged.</p>
             )}
-            {mutation.data.feedback ? (
+            {mutation.data.tips?.length > 0 ? (
-              <p className="text-xs text-muted-foreground pt-2 border-t">{mutation.data.feedback}</p>
+              <p className="text-xs text-muted-foreground pt-2 border-t">{mutation.data.tips.join("; ")}</p>
             ) : null}
           </div>
         )}
@@ -128,9 +129,9 @@ export default function AiWritingHelper({ text, task_type = "ielts_writing" }: P
             <p className="text-xs font-semibold text-primary mb-1 flex items-center gap-1">
               <Sparkles className="h-3 w-3" /> Estimated band / assessment
             </p>
-            <p className="text-sm text-muted-foreground">{mutation.data.feedback}</p>
+            <p className="text-sm text-muted-foreground">{mutation.data.tips?.join(" ") ?? ""}</p>
-            {mutation.data.improved ? (
+            {mutation.data.improved_text ? (
-              <p className="text-sm mt-2 pt-2 border-t">{mutation.data.improved}</p>
+              <p className="text-sm mt-2 pt-2 border-t">{mutation.data.improved_text}</p>
             ) : null}
           </div>
         )}

src/components/student/ExamPopup.tsx

@@ -0,0 +1,124 @@
+import { useState, useEffect } from "react";
+import { useNavigate } from "react-router-dom";
+import { useQuery } from "@tanstack/react-query";
+import { useTranslation } from "react-i18next";
+import { Dialog, DialogContent, DialogHeader, DialogTitle } from "@/components/ui/dialog";
+import { Button } from "@/components/ui/button";
+import { Badge } from "@/components/ui/badge";
+import { Clock, Calendar, PlayCircle, AlertCircle } from "lucide-react";
+import { assignmentsService } from "@/services/assignments.service";
+import type { StudentExamAssignment } from "@/types";
+
+export default function ExamPopup() {
+  const navigate = useNavigate();
+  const { t, i18n } = useTranslation();
+  const [open, setOpen] = useState(false);
+  const [dismissed, setDismissed] = useState<Set<number>>(new Set());
+
+  const { data } = useQuery({
+    queryKey: ["student-my-exams"],
+    queryFn: () => assignmentsService.getStudentExams(),
+    refetchInterval: 30000,
+  });
+
+  const exams = (data?.items ?? []) as StudentExamAssignment[];
+  const pendingExams = exams.filter((e) => !dismissed.has(e.id));
+
+  useEffect(() => {
+    if (pendingExams.length > 0 && !open) {
+      setOpen(true);
+    }
+  }, [pendingExams.length]);
+
+  if (pendingExams.length === 0) return null;
+
+  // Localize dates with the active language so Arabic users see ar-EG
+  // month names instead of "Apr 19, 2026". The locale is taken from i18n.
+  const dateLocale = i18n.language?.startsWith("ar") ? "ar-EG" : "en-US";
+  const formatDate = (iso: string | null) => {
+    if (!iso) return "—";
+    const d = new Date(iso);
+    return d.toLocaleDateString(dateLocale, { month: "short", day: "numeric", year: "numeric" }) +
+      " " + d.toLocaleTimeString(dateLocale, { hour: "2-digit", minute: "2-digit" });
+  };
+
+  const handleStart = (exam: StudentExamAssignment) => {
+    setOpen(false);
+    navigate(`/student/exam/${exam.exam_id}/session`);
+  };
+
+  const handleDismiss = (id: number) => {
+    setDismissed((prev) => new Set([...prev, id]));
+    const remaining = pendingExams.filter((e) => e.id !== id);
+    if (remaining.length === 0) setOpen(false);
+  };
+
+  return (
+    <Dialog open={open} onOpenChange={setOpen}>
+      <DialogContent className="max-w-lg">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2">
+            <AlertCircle className="h-5 w-5 text-primary" />
+            {t("examPopup.title", { n: pendingExams.length })}
+          </DialogTitle>
+        </DialogHeader>
+        <div className="space-y-3 max-h-[60vh] overflow-y-auto pe-1">
+          {pendingExams.map((exam) => (
+            <div key={exam.id} className="border rounded-lg p-4 space-y-3">
+              <div className="flex items-center justify-between">
+                <h3 className="font-semibold text-sm">{exam.exam_title || exam.schedule_name}</h3>
+                <Badge
+                  variant={exam.schedule_state === "active" ? "default" : "secondary"}
+                  className="capitalize text-xs"
+                >
+                  {exam.schedule_state === "active" ? t("examPopup.activeNow") : exam.schedule_state}
+                </Badge>
+              </div>
+
+              {exam.schedule_name && exam.exam_title && (
+                <p className="text-xs text-muted-foreground">{exam.schedule_name}</p>
+              )}
+
+              <div className="flex items-center gap-4 text-xs text-muted-foreground">
+                <span className="flex items-center gap-1">
+                  <Calendar className="h-3 w-3" />
+                  {t("examPopup.from")} {formatDate(exam.start_date)}
+                </span>
+                <span className="flex items-center gap-1">
+                  <Clock className="h-3 w-3" />
+                  {t("examPopup.to")} {formatDate(exam.end_date)}
+                </span>
+              </div>
+
+              <div className="flex items-center gap-2">
+                <Button
+                  size="sm"
+                  disabled={!exam.can_start}
+                  onClick={() => handleStart(exam)}
+                  className="gap-1.5"
+                >
+                  <PlayCircle className="h-3.5 w-3.5" />
+                  {exam.can_start ? t("examPopup.startExam") : t("examPopup.notAvailableYet")}
+                </Button>
+                <Button
+                  size="sm"
+                  variant="ghost"
+                  onClick={() => handleDismiss(exam.id)}
+                >
+                  {t("common.dismiss")}
+                </Button>
+                {!exam.can_start && (
+                  <span className="text-[11px] text-muted-foreground italic ms-auto">
+                    {exam.schedule_state === "planned"
+                      ? t("examPopup.willBeAvailable")
+                      : t("examPopup.notActive")}
+                  </span>
+                )}
+              </div>
+            </div>
+          ))}
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

src/components/ui/alert-dialog.tsx

@@ -25,22 +25,72 @@ const AlertDialogOverlay = React.forwardRef<
 ));
 AlertDialogOverlay.displayName = AlertDialogPrimitive.Overlay.displayName;
 
+function hasAlertDialogDescription(children: React.ReactNode): boolean {
+  let found = false;
+  React.Children.forEach(children, (child) => {
+    if (found || !React.isValidElement(child)) return;
+    const type = child.type as { displayName?: string } | undefined;
+    if (
+      type === AlertDialogPrimitive.Description ||
+      (type && type.displayName === AlertDialogPrimitive.Description.displayName)
+    ) {
+      found = true;
+      return;
+    }
+    const nested = (child.props as { children?: React.ReactNode } | undefined)
+      ?.children;
+    if (nested !== undefined && hasAlertDialogDescription(nested)) {
+      found = true;
+    }
+  });
+  return found;
+}
+
+type AlertDialogContentProps = React.ComponentPropsWithoutRef<
+  typeof AlertDialogPrimitive.Content
+> & {
+  /**
+   * Optional accessible description rendered visually-hidden. When omitted and
+   * no `AlertDialogDescription` is found in the subtree, a generic fallback is
+   * emitted so screen readers still have something to announce.
+   */
+  description?: React.ReactNode;
+};
+
 const AlertDialogContent = React.forwardRef<
   React.ElementRef<typeof AlertDialogPrimitive.Content>,
-  React.ComponentPropsWithoutRef<typeof AlertDialogPrimitive.Content>
+  AlertDialogContentProps
->(({ className, ...props }, ref) => (
+>(({ className, children, description, ...props }, ref) => {
-  <AlertDialogPortal>
+  const needsFallback =
-    <AlertDialogOverlay />
+    !props["aria-describedby"] &&
-    <AlertDialogPrimitive.Content
+    description === undefined &&
-      ref={ref}
+    !hasAlertDialogDescription(children);
-      className={cn(
+  return (
-        "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
+    <AlertDialogPortal>
-        className,
+      <AlertDialogOverlay />
-      )}
+      <AlertDialogPrimitive.Content
-      {...props}
+        ref={ref}
-    />
+        className={cn(
-  </AlertDialogPortal>
+          "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
-));
+          className,
+        )}
+        {...props}
+      >
+        {description !== undefined && (
+          <AlertDialogPrimitive.Description className="sr-only">
+            {description}
+          </AlertDialogPrimitive.Description>
+        )}
+        {needsFallback && (
+          <AlertDialogPrimitive.Description className="sr-only">
+            Alert dialog content
+          </AlertDialogPrimitive.Description>
+        )}
+        {children}
+      </AlertDialogPrimitive.Content>
+    </AlertDialogPortal>
+  );
+});
 AlertDialogContent.displayName = AlertDialogPrimitive.Content.displayName;
 
 const AlertDialogHeader = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (

src/components/ui/badge.tsx

@@ -22,8 +22,11 @@ const badgeVariants = cva(
 
 export interface BadgeProps extends React.HTMLAttributes<HTMLDivElement>, VariantProps<typeof badgeVariants> {}
 
-function Badge({ className, variant, ...props }: BadgeProps) {
+const Badge = React.forwardRef<HTMLDivElement, BadgeProps>(
-  return <div className={cn(badgeVariants({ variant }), className)} {...props} />;
+  ({ className, variant, ...props }, ref) => (
-}
+    <div ref={ref} className={cn(badgeVariants({ variant }), className)} {...props} />
+  ),
+);
+Badge.displayName = "Badge";
 
 export { Badge, badgeVariants };

src/components/ui/breadcrumb.tsx

@@ -60,7 +60,12 @@ const BreadcrumbPage = React.forwardRef<HTMLSpanElement, React.ComponentPropsWit
 BreadcrumbPage.displayName = "BreadcrumbPage";
 
 const BreadcrumbSeparator = ({ children, className, ...props }: React.ComponentProps<"li">) => (
-  <li role="presentation" aria-hidden="true" className={cn("[&>svg]:size-3.5", className)} {...props}>
+  <li
+    role="presentation"
+    aria-hidden="true"
+    className={cn("[&>svg]:size-3.5 rtl:[&>svg]:rotate-180", className)}
+    {...props}
+  >
     {children ?? <ChevronRight />}
   </li>
 );

src/components/ui/calendar.tsx

@@ -42,8 +42,8 @@ function Calendar({ className, classNames, showOutsideDays = true, ...props }: C
         ...classNames,
       }}
       components={{
-        IconLeft: ({ ..._props }) => <ChevronLeft className="h-4 w-4" />,
+        IconLeft: ({ ..._props }) => <ChevronLeft className="h-4 w-4 rtl:rotate-180" />,
-        IconRight: ({ ..._props }) => <ChevronRight className="h-4 w-4" />,
+        IconRight: ({ ..._props }) => <ChevronRight className="h-4 w-4 rtl:rotate-180" />,
       }}
       {...props}
     />

src/components/ui/carousel.tsx

@@ -185,7 +185,7 @@ const CarouselPrevious = React.forwardRef<HTMLButtonElement, React.ComponentProp
         onClick={scrollPrev}
         {...props}
       >
-        <ArrowLeft className="h-4 w-4" />
+        <ArrowLeft className="h-4 w-4 rtl:rotate-180" />
         <span className="sr-only">Previous slide</span>
       </Button>
     );
@@ -213,7 +213,7 @@ const CarouselNext = React.forwardRef<HTMLButtonElement, React.ComponentProps<ty
         onClick={scrollNext}
         {...props}
       >
-        <ArrowRight className="h-4 w-4" />
+        <ArrowRight className="h-4 w-4 rtl:rotate-180" />
         <span className="sr-only">Next slide</span>
       </Button>
     );

src/components/ui/context-menu.tsx

@@ -32,7 +32,7 @@ const ContextMenuSubTrigger = React.forwardRef<
     {...props}
   >
     {children}
-    <ChevronRight className="ml-auto h-4 w-4" />
+    <ChevronRight className="ms-auto h-4 w-4 rtl:rotate-180" />
   </ContextMenuPrimitive.SubTrigger>
 ));
 ContextMenuSubTrigger.displayName = ContextMenuPrimitive.SubTrigger.displayName;

src/components/ui/dialog.tsx

@@ -27,28 +27,86 @@ const DialogOverlay = React.forwardRef<
 ));
 DialogOverlay.displayName = DialogPrimitive.Overlay.displayName;
 
+/**
+ * Walks `children` looking for any element whose component is
+ * `DialogPrimitive.Description` (or our re-exported `DialogDescription`).
+ * Radix emits an a11y warning when a `DialogContent` has neither a
+ * `Description` nor an explicit `aria-describedby`, so we use this to decide
+ * whether to inject a visually-hidden fallback description.
+ */
+function hasDialogDescription(children: React.ReactNode): boolean {
+  let found = false;
+  React.Children.forEach(children, (child) => {
+    if (found || !React.isValidElement(child)) return;
+    const type = child.type as { displayName?: string } | undefined;
+    if (
+      type === DialogPrimitive.Description ||
+      (type && type.displayName === DialogPrimitive.Description.displayName)
+    ) {
+      found = true;
+      return;
+    }
+    const nested = (child.props as { children?: React.ReactNode } | undefined)
+      ?.children;
+    if (nested !== undefined && hasDialogDescription(nested)) {
+      found = true;
+    }
+  });
+  return found;
+}
+
+type DialogContentProps = React.ComponentPropsWithoutRef<
+  typeof DialogPrimitive.Content
+> & {
+  /**
+   * Optional accessible description. When supplied, a visually-hidden
+   * `DialogDescription` is rendered so screen readers announce it without
+   * affecting layout. Prefer this for simple dialogs; for richer descriptions
+   * continue to place a `<DialogDescription>` inside `<DialogHeader>`.
+   */
+  description?: React.ReactNode;
+};
+
 const DialogContent = React.forwardRef<
   React.ElementRef<typeof DialogPrimitive.Content>,
-  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Content>
+  DialogContentProps
->(({ className, children, ...props }, ref) => (
+>(({ className, children, description, ...props }, ref) => {
-  <DialogPortal>
+  const hasExplicitDescribedBy = !!props["aria-describedby"];
-    <DialogOverlay />
+  const needsFallback =
-    <DialogPrimitive.Content
+    !hasExplicitDescribedBy &&
-      ref={ref}
+    description === undefined &&
-      className={cn(
+    !hasDialogDescription(children);
-        "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
+
-        className,
+  return (
-      )}
+    <DialogPortal>
-      {...props}
+      <DialogOverlay />
-    >
+      <DialogPrimitive.Content
-      {children}
+        ref={ref}
-      <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity data-[state=open]:bg-accent data-[state=open]:text-muted-foreground hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none">
+        className={cn(
-        <X className="h-4 w-4" />
+          "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
-        <span className="sr-only">Close</span>
+          className,
-      </DialogPrimitive.Close>
+        )}
-    </DialogPrimitive.Content>
+        {...props}
-  </DialogPortal>
+      >
-));
+        {description !== undefined && (
+          <DialogPrimitive.Description className="sr-only">
+            {description}
+          </DialogPrimitive.Description>
+        )}
+        {needsFallback && (
+          <DialogPrimitive.Description className="sr-only">
+            Dialog content
+          </DialogPrimitive.Description>
+        )}
+        {children}
+        <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity data-[state=open]:bg-accent data-[state=open]:text-muted-foreground hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none">
+          <X className="h-4 w-4" />
+          <span className="sr-only">Close</span>
+        </DialogPrimitive.Close>
+      </DialogPrimitive.Content>
+    </DialogPortal>
+  );
+});
 DialogContent.displayName = DialogPrimitive.Content.displayName;
 
 const DialogHeader = ({ className, ...props }: React.HTMLAttributes<HTMLDivElement>) => (

src/components/ui/dropdown-menu.tsx

@@ -32,7 +32,7 @@ const DropdownMenuSubTrigger = React.forwardRef<
     {...props}
   >
     {children}
-    <ChevronRight className="ml-auto h-4 w-4" />
+    <ChevronRight className="ms-auto h-4 w-4 rtl:rotate-180" />
   </DropdownMenuPrimitive.SubTrigger>
 ));
 DropdownMenuSubTrigger.displayName = DropdownMenuPrimitive.SubTrigger.displayName;

src/components/ui/menubar.tsx

@@ -57,7 +57,7 @@ const MenubarSubTrigger = React.forwardRef<
     {...props}
   >
     {children}
-    <ChevronRight className="ml-auto h-4 w-4" />
+    <ChevronRight className="ms-auto h-4 w-4 rtl:rotate-180" />
   </MenubarPrimitive.SubTrigger>
 ));
 MenubarSubTrigger.displayName = MenubarPrimitive.SubTrigger.displayName;

src/components/ui/pagination.tsx

@@ -47,17 +47,17 @@ const PaginationLink = ({ className, isActive, size = "icon", ...props }: Pagina
 PaginationLink.displayName = "PaginationLink";
 
 const PaginationPrevious = ({ className, ...props }: React.ComponentProps<typeof PaginationLink>) => (
-  <PaginationLink aria-label="Go to previous page" size="default" className={cn("gap-1 pl-2.5", className)} {...props}>
+  <PaginationLink aria-label="Go to previous page" size="default" className={cn("gap-1 ps-2.5", className)} {...props}>
-    <ChevronLeft className="h-4 w-4" />
+    <ChevronLeft className="h-4 w-4 rtl:rotate-180" />
     <span>Previous</span>
   </PaginationLink>
 );
 PaginationPrevious.displayName = "PaginationPrevious";
 
 const PaginationNext = ({ className, ...props }: React.ComponentProps<typeof PaginationLink>) => (
-  <PaginationLink aria-label="Go to next page" size="default" className={cn("gap-1 pr-2.5", className)} {...props}>
+  <PaginationLink aria-label="Go to next page" size="default" className={cn("gap-1 pe-2.5", className)} {...props}>
     <span>Next</span>
-    <ChevronRight className="h-4 w-4" />
+    <ChevronRight className="h-4 w-4 rtl:rotate-180" />
   </PaginationLink>
 );
 PaginationNext.displayName = "PaginationNext";

src/components/ui/sheet.tsx

@@ -49,21 +49,61 @@ const sheetVariants = cva(
 
 interface SheetContentProps
   extends React.ComponentPropsWithoutRef<typeof SheetPrimitive.Content>,
-    VariantProps<typeof sheetVariants> {}
+    VariantProps<typeof sheetVariants> {
+  /**
+   * Optional accessible description rendered visually-hidden. Falls back to a
+   * generic string when no `SheetDescription` is found in the subtree, which
+   * keeps Radix happy without forcing every call-site to add one.
+   */
+  description?: React.ReactNode;
+}
+
+function hasSheetDescription(children: React.ReactNode): boolean {
+  let found = false;
+  React.Children.forEach(children, (child) => {
+    if (found || !React.isValidElement(child)) return;
+    const type = child.type as { displayName?: string } | undefined;
+    if (
+      type === SheetPrimitive.Description ||
+      (type && type.displayName === SheetPrimitive.Description.displayName)
+    ) {
+      found = true;
+      return;
+    }
+    const nested = (child.props as { children?: React.ReactNode } | undefined)
+      ?.children;
+    if (nested !== undefined && hasSheetDescription(nested)) {
+      found = true;
+    }
+  });
+  return found;
+}
 
 const SheetContent = React.forwardRef<React.ElementRef<typeof SheetPrimitive.Content>, SheetContentProps>(
-  ({ side = "right", className, children, ...props }, ref) => (
+  ({ side = "right", className, children, description, ...props }, ref) => {
-    <SheetPortal>
+    const needsFallback =
-      <SheetOverlay />
+      !props["aria-describedby"] &&
-      <SheetPrimitive.Content ref={ref} className={cn(sheetVariants({ side }), className)} {...props}>
+      description === undefined &&
-        {children}
+      !hasSheetDescription(children);
-        <SheetPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity data-[state=open]:bg-secondary hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none">
+    return (
-          <X className="h-4 w-4" />
+      <SheetPortal>
-          <span className="sr-only">Close</span>
+        <SheetOverlay />
-        </SheetPrimitive.Close>
+        <SheetPrimitive.Content ref={ref} className={cn(sheetVariants({ side }), className)} {...props}>
-      </SheetPrimitive.Content>
+          {description !== undefined && (
-    </SheetPortal>
+            <SheetPrimitive.Description className="sr-only">{description}</SheetPrimitive.Description>
-  ),
+          )}
+          {needsFallback && (
+            <SheetPrimitive.Description className="sr-only">Sheet content</SheetPrimitive.Description>
+          )}
+          {children}
+          <SheetPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity data-[state=open]:bg-secondary hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none">
+            <X className="h-4 w-4" />
+            <span className="sr-only">Close</span>
+          </SheetPrimitive.Close>
+        </SheetPrimitive.Content>
+      </SheetPortal>
+    );
+  },
 );
 SheetContent.displayName = SheetPrimitive.Content.displayName;
 

src/components/ui/sidebar.tsx

@@ -217,7 +217,7 @@ const Sidebar = React.forwardRef<
 Sidebar.displayName = "Sidebar";
 
 const SidebarTrigger = React.forwardRef<React.ElementRef<typeof Button>, React.ComponentProps<typeof Button>>(
-  ({ className, onClick, ...props }, ref) => {
+  ({ className, onClick, "aria-label": ariaLabel, ...props }, ref) => {
     const { toggleSidebar } = useSidebar();
 
     return (
@@ -226,6 +226,7 @@ const SidebarTrigger = React.forwardRef<React.ElementRef<typeof Button>, React.C
         data-sidebar="trigger"
         variant="ghost"
         size="icon"
+        aria-label={ariaLabel ?? "Toggle sidebar"}
         className={cn("h-7 w-7", className)}
         onClick={(event) => {
           onClick?.(event);
@@ -233,8 +234,8 @@ const SidebarTrigger = React.forwardRef<React.ElementRef<typeof Button>, React.C
         }}
         {...props}
       >
-        <PanelLeft />
+        <PanelLeft className="rtl:rotate-180" />
-        <span className="sr-only">Toggle Sidebar</span>
+        <span className="sr-only">{ariaLabel ?? "Toggle sidebar"}</span>
       </Button>
     );
   },

src/components/wizard/StepWizard.tsx

@@ -0,0 +1,234 @@
+import { ReactNode, useMemo, useState } from "react";
+import { Link } from "react-router-dom";
+import { useTranslation } from "react-i18next";
+import { ArrowLeft, ArrowRight, Check, ChevronLeft } from "lucide-react";
+
+import { Card, CardContent, CardHeader } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { cn } from "@/lib/utils";
+
+/**
+ * Generic multi-step wizard shell.
+ *
+ * A wizard is defined as an ordered array of {@link WizardStepDef} items.
+ * Each step owns its own piece of the accumulated state and returns a node
+ * that renders the form. The shell handles:
+ *
+ *   - rendering the numbered stepper (with `completed` / `active` styles)
+ *   - Back / Next navigation
+ *   - a final "Finish" button that calls `onFinish(state)`
+ *   - per-step validation via `step.validate(state)` → return an error
+ *     message or `null` when valid
+ *   - a persistent progress bar
+ *
+ * Keeping this shell free of domain logic means every scenario wizard
+ * (rubric, course, structure, …) is just a tiny file that defines steps
+ * and wires the final submit to the right service.
+ */
+
+export interface WizardStepDef<TState> {
+  id: string;
+  /** i18n key for the step title. */
+  titleKey: string;
+  /** Optional i18n key for a short description shown under the title. */
+  descriptionKey?: string;
+  /**
+   * Render the step's form. Call `update(patch)` to merge fields into the
+   * shared state. Do **not** call `onNext` directly — the shell handles
+   * Next/Back; the render function should just update local fields.
+   */
+  render: (props: StepRenderProps<TState>) => ReactNode;
+  /**
+   * Synchronous validator. Return a human-readable error message that will
+   * be displayed under the form and block Next, or `null` when valid.
+   */
+  validate?: (state: TState) => string | null;
+}
+
+export interface StepRenderProps<TState> {
+  state: TState;
+  update: (patch: Partial<TState>) => void;
+  error: string | null;
+}
+
+export interface StepWizardProps<TState> {
+  /** i18n key for the wizard heading. */
+  titleKey: string;
+  /** i18n key for the short lead paragraph shown under the heading. */
+  subtitleKey?: string;
+  /** Optional back-link to the hub. */
+  backTo?: string;
+  backLabelKey?: string;
+  steps: WizardStepDef<TState>[];
+  initialState: TState;
+  /** Called once the user clicks Finish on the last step. */
+  onFinish: (state: TState) => Promise<void> | void;
+  /** i18n key for the Finish button label. Defaults to "wizard.finish". */
+  finishLabelKey?: string;
+  /** Disable all form controls (used by consumers while submitting). */
+  submitting?: boolean;
+}
+
+export function StepWizard<TState>({
+  titleKey,
+  subtitleKey,
+  backTo,
+  backLabelKey = "wizard.backToHub",
+  steps,
+  initialState,
+  onFinish,
+  finishLabelKey = "wizard.finish",
+  submitting = false,
+}: StepWizardProps<TState>) {
+  const { t } = useTranslation();
+  const [index, setIndex] = useState(0);
+  const [state, setState] = useState<TState>(initialState);
+  const [error, setError] = useState<string | null>(null);
+  const [submittingInternal, setSubmittingInternal] = useState(false);
+
+  const busy = submitting || submittingInternal;
+  const current = steps[index];
+  const isLast = index === steps.length - 1;
+  const progress = Math.round(((index + 1) / steps.length) * 100);
+
+  const update = (patch: Partial<TState>) => {
+    setState((prev) => ({ ...prev, ...patch }));
+    // Clear validation error as soon as the user starts typing again.
+    if (error) setError(null);
+  };
+
+  const validateAndAdvance = async () => {
+    const msg = current.validate?.(state) ?? null;
+    if (msg) {
+      setError(msg);
+      return;
+    }
+    setError(null);
+
+    if (!isLast) {
+      setIndex((i) => i + 1);
+      return;
+    }
+
+    // Last step: submit.
+    try {
+      setSubmittingInternal(true);
+      await onFinish(state);
+    } finally {
+      setSubmittingInternal(false);
+    }
+  };
+
+  const stepStatus = useMemo(
+    () =>
+      steps.map((_, i) => {
+        if (i < index) return "done" as const;
+        if (i === index) return "active" as const;
+        return "upcoming" as const;
+      }),
+    [steps, index],
+  );
+
+  return (
+    <div className="mx-auto max-w-3xl space-y-6">
+      {/* Heading + back link */}
+      <div className="space-y-2">
+        {backTo && (
+          <Button variant="ghost" size="sm" asChild className="-ml-2 text-muted-foreground">
+            <Link to={backTo} className="flex items-center gap-1">
+              <ChevronLeft className="h-4 w-4" />
+              {t(backLabelKey)}
+            </Link>
+          </Button>
+        )}
+        <h1 className="text-2xl font-semibold tracking-tight">{t(titleKey)}</h1>
+        {subtitleKey && <p className="text-muted-foreground">{t(subtitleKey)}</p>}
+      </div>
+
+      {/* Stepper */}
+      <ol className="flex items-center gap-2 overflow-x-auto pb-2" role="list">
+        {steps.map((step, i) => {
+          const s = stepStatus[i];
+          return (
+            <li key={step.id} className="flex items-center gap-2 shrink-0">
+              <div
+                className={cn(
+                  "flex h-7 w-7 items-center justify-center rounded-full text-xs font-semibold",
+                  s === "done" && "bg-primary text-primary-foreground",
+                  s === "active" && "bg-primary/10 text-primary ring-2 ring-primary",
+                  s === "upcoming" && "bg-muted text-muted-foreground",
+                )}
+                aria-current={s === "active" ? "step" : undefined}
+              >
+                {s === "done" ? <Check className="h-4 w-4" /> : i + 1}
+              </div>
+              <span
+                className={cn(
+                  "text-sm whitespace-nowrap",
+                  s === "active" ? "font-medium" : "text-muted-foreground",
+                )}
+              >
+                {t(step.titleKey)}
+              </span>
+              {i < steps.length - 1 && <div className="mx-1 h-px w-8 bg-border" />}
+            </li>
+          );
+        })}
+      </ol>
+
+      {/* Progress bar */}
+      <div className="h-1.5 w-full rounded-full bg-muted overflow-hidden">
+        <div
+          className="h-full bg-primary transition-all"
+          style={{ width: `${progress}%` }}
+          aria-hidden
+        />
+      </div>
+
+      {/* Active step */}
+      <Card>
+        <CardHeader className="pb-2">
+          <h2 className="text-lg font-semibold">{t(current.titleKey)}</h2>
+          {current.descriptionKey && (
+            <p className="text-sm text-muted-foreground">{t(current.descriptionKey)}</p>
+          )}
+        </CardHeader>
+        <CardContent className="space-y-4">
+          {current.render({ state, update, error })}
+
+          {error && (
+            <div
+              role="alert"
+              className="rounded-md border border-destructive/30 bg-destructive/10 px-3 py-2 text-sm text-destructive"
+            >
+              {error}
+            </div>
+          )}
+        </CardContent>
+      </Card>
+
+      {/* Navigation */}
+      <div className="flex items-center justify-between gap-2">
+        <Button
+          variant="outline"
+          onClick={() => setIndex((i) => Math.max(0, i - 1))}
+          disabled={busy || index === 0}
+        >
+          <ArrowLeft className="mr-1 h-4 w-4" />
+          {t("wizard.back")}
+        </Button>
+
+        <div className="text-xs text-muted-foreground tabular-nums">
+          {t("wizard.stepOf", { current: index + 1, total: steps.length })}
+        </div>
+
+        <Button onClick={validateAndAdvance} disabled={busy}>
+          {isLast ? t(finishLabelKey) : t("wizard.next")}
+          {!isLast && <ArrowRight className="ml-1 h-4 w-4" />}
+        </Button>
+      </div>
+    </div>
+  );
+}
+
+export default StepWizard;

src/hooks/queries/keys.ts

@@ -4,241 +4,246 @@ export const queryKeys = {
   },
   users: {
     all: ["users"] as const,
-    list: (params: Record<string, unknown>) => ["users", "list", params] as const,
+    list: (params: object) => ["users", "list", params] as const,
     detail: (id: number) => ["users", id] as const,
   },
   entities: {
     all: ["entities"] as const,
-    list: (params?: Record<string, unknown>) => ["entities", "list", params] as const,
+    list: (params?: object) => ["entities", "list", params] as const,
     detail: (id: number) => ["entities", id] as const,
     roles: (entityId: number) => ["entities", entityId, "roles"] as const,
     permissions: (entityId: number) => ["entities", entityId, "permissions"] as const,
   },
   exams: {
     all: ["exams"] as const,
-    list: (module: string, params?: Record<string, unknown>) => ["exams", module, params] as const,
+    list: (module: string, params?: object) => ["exams", module, params] as const,
     detail: (module: string, id: number) => ["exams", module, id] as const,
-    rubrics: (params?: Record<string, unknown>) => ["exams", "rubrics", params] as const,
+    rubrics: (params?: object) => ["exams", "rubrics", params] as const,
-    rubricGroups: (params?: Record<string, unknown>) => ["exams", "rubric-groups", params] as const,
+    rubricGroups: (params?: object) => ["exams", "rubric-groups", params] as const,
-    structures: (params?: Record<string, unknown>) => ["exams", "structures", params] as const,
+    structures: (params?: object) => ["exams", "structures", params] as const,
     avatars: ["exams", "avatars"] as const,
+    reviewQueue: (params?: object) => ["exams", "review", "queue", params] as const,
+    reviewDetail: (id: number) => ["exams", "review", "detail", id] as const,
   },
   assignments: {
     all: ["assignments"] as const,
-    list: (params?: Record<string, unknown>) => ["assignments", "list", params] as const,
+    list: (params?: object) => ["assignments", "list", params] as const,
     detail: (id: number) => ["assignments", id] as const,
   },
   classrooms: {
     all: ["classrooms"] as const,
-    list: (params?: Record<string, unknown>) => ["classrooms", "list", params] as const,
+    list: (params?: object) => ["classrooms", "list", params] as const,
     detail: (id: number) => ["classrooms", id] as const,
   },
   stats: {
-    sessions: (params?: Record<string, unknown>) => ["stats", "sessions", params] as const,
+    sessions: (params?: object) => ["stats", "sessions", params] as const,
-    stats: (params?: Record<string, unknown>) => ["stats", "stats", params] as const,
+    stats: (params?: object) => ["stats", "stats", params] as const,
-    statistical: (params?: Record<string, unknown>) => ["stats", "statistical", params] as const,
+    statistical: (params?: object) => ["stats", "statistical", params] as const,
-    performance: (params?: Record<string, unknown>) => ["stats", "performance", params] as const,
+    performance: (params?: object) => ["stats", "performance", params] as const,
   },
   training: {
     all: ["training"] as const,
-    tips: (params?: Record<string, unknown>) => ["training", "tips", params] as const,
+    tips: (params?: object) => ["training", "tips", params] as const,
     walkthroughs: (module?: string) => ["training", "walkthroughs", module] as const,
   },
   subscriptions: {
     packages: ["subscriptions", "packages"] as const,
-    payments: (params?: Record<string, unknown>) => ["subscriptions", "payments", params] as const,
+    payments: (params?: object) => ["subscriptions", "payments", params] as const,
-    discounts: (params?: Record<string, unknown>) => ["subscriptions", "discounts", params] as const,
+    discounts: (params?: object) => ["subscriptions", "discounts", params] as const,
   },
   tickets: {
     all: ["tickets"] as const,
-    list: (params?: Record<string, unknown>) => ["tickets", "list", params] as const,
+    list: (params?: object) => ["tickets", "list", params] as const,
     assigned: ["tickets", "assigned"] as const,
   },
   approvals: {
     all: ["approvals"] as const,
-    list: (params?: Record<string, unknown>) => ["approvals", "list", params] as const,
+    list: (params?: object) => ["approvals", "list", params] as const,
   },
   taxonomy: {
     subjects: ["taxonomy", "subjects"] as const,
     subject: (id: number) => ["taxonomy", "subjects", id] as const,
     tree: (subjectId: number) => ["taxonomy", "tree", subjectId] as const,
-    domains: (params?: Record<string, unknown>) => ["taxonomy", "domains", params] as const,
+    domains: (params?: object) => ["taxonomy", "domains", params] as const,
-    topics: (params?: Record<string, unknown>) => ["taxonomy", "topics", params] as const,
+    topics: (params?: object) => ["taxonomy", "topics", params] as const,
   },
   adaptive: {
-    proficiency: (params?: Record<string, unknown>) => ["adaptive", "proficiency", params] as const,
+    proficiency: (params?: object) => ["adaptive", "proficiency", params] as const,
     summary: ["adaptive", "proficiency", "summary"] as const,
-    plan: (params?: Record<string, unknown>) => ["adaptive", "plan", params] as const,
+    plan: (params?: object) => ["adaptive", "plan", params] as const,
     topicContent: (topicId: number) => ["adaptive", "topic", topicId, "content"] as const,
     diagnostic: (sessionId: number) => ["adaptive", "diagnostic", sessionId] as const,
   },
   resources: {
     all: ["resources"] as const,
-    list: (params?: Record<string, unknown>) => ["resources", "list", params] as const,
+    list: (params?: object) => ["resources", "list", params] as const,
   },
   lms: {
-    courses: (params?: Record<string, unknown>) => ["lms", "courses", params] as const,
+    courses: (params?: object) => ["lms", "courses", params] as const,
     course: (id: number) => ["lms", "courses", id] as const,
-    students: (params?: Record<string, unknown>) => ["lms", "students", params] as const,
+    myCourses: ["lms", "my-courses"] as const,
-    teachers: (params?: Record<string, unknown>) => ["lms", "teachers", params] as const,
+    students: (params?: object) => ["lms", "students", params] as const,
-    batches: (params?: Record<string, unknown>) => ["lms", "batches", params] as const,
+    teachers: (params?: object) => ["lms", "teachers", params] as const,
+    batches: (params?: object) => ["lms", "batches", params] as const,
     batch: (id: number) => ["lms", "batches", id] as const,
-    timetable: (params?: Record<string, unknown>) => ["lms", "timetable", params] as const,
+    timetable: (params?: object) => ["lms", "timetable", params] as const,
-    attendance: (params?: Record<string, unknown>) => ["lms", "attendance", params] as const,
+    attendance: (params?: object) => ["lms", "attendance", params] as const,
-    grades: (params?: Record<string, unknown>) => ["lms", "grades", params] as const,
+    grades: (params?: object) => ["lms", "grades", params] as const,
   },
   analytics: {
-    student: (params?: Record<string, unknown>) => ["analytics", "student", params] as const,
+    student: (params?: object) => ["analytics", "student", params] as const,
-    class: (params?: Record<string, unknown>) => ["analytics", "class", params] as const,
+    class: (params?: object) => ["analytics", "class", params] as const,
-    subject: (params?: Record<string, unknown>) => ["analytics", "subject", params] as const,
+    subject: (params?: object) => ["analytics", "subject", params] as const,
-    contentGaps: (params?: Record<string, unknown>) => ["analytics", "content-gaps", params] as const,
+    contentGaps: (params?: object) => ["analytics", "content-gaps", params] as const,
     alerts: ["analytics", "alerts"] as const,
   },
   academicYears: {
     all: ["academic-years"] as const,
-    list: (params?: Record<string, unknown>) => ["academic-years", "list", params] as const,
+    list: (params?: object) => ["academic-years", "list", params] as const,
     detail: (id: number) => ["academic-years", id] as const,
   },
   academicTerms: {
     all: ["academic-terms"] as const,
-    list: (params?: Record<string, unknown>) => ["academic-terms", "list", params] as const,
+    list: (params?: object) => ["academic-terms", "list", params] as const,
     detail: (id: number) => ["academic-terms", id] as const,
   },
   departments: {
     all: ["departments"] as const,
-    list: (params?: Record<string, unknown>) => ["departments", "list", params] as const,
+    list: (params?: object) => ["departments", "list", params] as const,
     detail: (id: number) => ["departments", id] as const,
   },
   admissionRegisters: {
     all: ["admission-registers"] as const,
-    list: (params?: Record<string, unknown>) => ["admission-registers", "list", params] as const,
+    list: (params?: object) => ["admission-registers", "list", params] as const,
     detail: (id: number) => ["admission-registers", id] as const,
   },
   admissions: {
     all: ["admissions"] as const,
-    list: (params?: Record<string, unknown>) => ["admissions", "list", params] as const,
+    list: (params?: object) => ["admissions", "list", params] as const,
     detail: (id: number) => ["admissions", id] as const,
   },
   instExamSessions: {
     all: ["inst-exam-sessions"] as const,
-    list: (params?: Record<string, unknown>) => ["inst-exam-sessions", "list", params] as const,
+    list: (params?: object) => ["inst-exam-sessions", "list", params] as const,
     detail: (id: number) => ["inst-exam-sessions", id] as const,
   },
   examTypes: {
     all: ["exam-types"] as const,
-    list: (params?: Record<string, unknown>) => ["exam-types", "list", params] as const,
+    list: (params?: object) => ["exam-types", "list", params] as const,
   },
   gradeConfigs: {
     all: ["grade-configs"] as const,
-    list: (params?: Record<string, unknown>) => ["grade-configs", "list", params] as const,
+    list: (params?: object) => ["grade-configs", "list", params] as const,
   },
   resultTemplates: {
     all: ["result-templates"] as const,
-    list: (params?: Record<string, unknown>) => ["result-templates", "list", params] as const,
+    list: (params?: object) => ["result-templates", "list", params] as const,
   },
   marksheets: {
     all: ["marksheets"] as const,
-    list: (params?: Record<string, unknown>) => ["marksheets", "list", params] as const,
+    list: (params?: object) => ["marksheets", "list", params] as const,
     detail: (id: number) => ["marksheets", id] as const,
   },
   courseAssignments: {
     all: ["course-assignments"] as const,
-    list: (params?: Record<string, unknown>) => ["course-assignments", "list", params] as const,
+    list: (params?: object) => ["course-assignments", "list", params] as const,
     detail: (id: number) => ["course-assignments", id] as const,
   },
   assignmentTypes: {
     all: ["assignment-types"] as const,
-    list: (params?: Record<string, unknown>) => ["assignment-types", "list", params] as const,
+    list: (params?: object) => ["assignment-types", "list", params] as const,
   },
   subjectRegistrations: {
     all: ["subject-registrations"] as const,
-    list: (params?: Record<string, unknown>) => ["subject-registrations", "list", params] as const,
+    list: (params?: object) => ["subject-registrations", "list", params] as const,
-    available: (params?: Record<string, unknown>) => ["subject-registrations", "available", params] as const,
+    available: (params?: object) => ["subject-registrations", "available", params] as const,
   },
+  courseCompletion: (courseId: number) => ["course-completion", courseId] as const,
   chapters: (courseId: number) => ["chapters", "list", courseId] as const,
   chapter: (id: number) => ["chapters", "detail", id] as const,
   chapterMaterials: (chapterId: number) => ["chapter-materials", chapterId] as const,
   chapterProgress: (chapterId: number) => ["chapter-progress", chapterId] as const,
-  discussionBoards: (params?: Record<string, unknown>) => ["discussion-boards", params] as const,
+  discussionBoards: (params?: object) => ["discussion-boards", params] as const,
-  posts: (boardId: number, params?: Record<string, unknown>) => ["posts", boardId, params] as const,
+  posts: (boardId: number, params?: object) => ["posts", boardId, params] as const,
-  announcements: (params?: Record<string, unknown>) => ["announcements", params] as const,
+  announcements: (params?: object) => ["announcements", params] as const,
-  messages: (params?: Record<string, unknown>) => ["messages", params] as const,
+  messages: (params?: object) => ["messages", params] as const,
-  sentMessages: (params?: Record<string, unknown>) => ["messages", "sent", params] as const,
+  sentMessages: (params?: object) => ["messages", "sent", params] as const,
   unreadMessages: ["messages", "unread-count"] as const,
-  notifications: (params?: Record<string, unknown>) => ["notifications", params] as const,
+  notifications: (params?: object) => ["notifications", params] as const,
   unreadNotifications: ["notifications", "unread-count"] as const,
   notificationRules: ["notification-rules"] as const,
   notificationPreferences: ["notification-preferences"] as const,
   faqCategories: (audience?: string) => ["faq", "categories", audience] as const,
-  faqItems: (params?: Record<string, unknown>) => ["faq", "items", params] as const,
+  faqItems: (params?: object) => ["faq", "items", params] as const,
   studentLeaves: {
     all: ["student-leaves"] as const,
-    list: (params?: Record<string, unknown>) => ["student-leaves", "list", params] as const,
+    list: (params?: object) => ["student-leaves", "list", params] as const,
   },
   studentLeaveTypes: {
     all: ["student-leave-types"] as const,
-    list: (params?: Record<string, unknown>) => ["student-leave-types", "list", params] as const,
+    list: (params?: object) => ["student-leave-types", "list", params] as const,
   },
   feesPlans: {
     all: ["fees-plans"] as const,
-    list: (params?: Record<string, unknown>) => ["fees-plans", "list", params] as const,
+    list: (params?: object) => ["fees-plans", "list", params] as const,
     detail: (id: number) => ["fees-plans", id] as const,
   },
   studentFees: {
     all: ["student-fees"] as const,
-    list: (params?: Record<string, unknown>) => ["student-fees", "list", params] as const,
+    list: (params?: object) => ["student-fees", "list", params] as const,
   },
   feesTerms: {
     all: ["fees-terms"] as const,
-    list: (params?: Record<string, unknown>) => ["fees-terms", "list", params] as const,
+    list: (params?: object) => ["fees-terms", "list", params] as const,
   },
   lessons: {
     all: ["lessons"] as const,
-    list: (params?: Record<string, unknown>) => ["lessons", "list", params] as const,
+    list: (params?: object) => ["lessons", "list", params] as const,
   },
   gradebooks: {
     all: ["gradebooks"] as const,
-    list: (params?: Record<string, unknown>) => ["gradebooks", "list", params] as const,
+    list: (params?: object) => ["gradebooks", "list", params] as const,
   },
   gradebookLines: {
     all: ["gradebook-lines"] as const,
-    list: (params?: Record<string, unknown>) => ["gradebook-lines", "list", params] as const,
+    list: (params?: object) => ["gradebook-lines", "list", params] as const,
   },
   gradingAssignments: {
     all: ["grading-assignments"] as const,
-    list: (params?: Record<string, unknown>) => ["grading-assignments", "list", params] as const,
+    list: (params?: object) => ["grading-assignments", "list", params] as const,
   },
   studentProgress: {
     all: ["student-progress"] as const,
-    list: (params?: Record<string, unknown>) => ["student-progress", "list", params] as const,
+    list: (params?: object) => ["student-progress", "list", params] as const,
+    detail: (id: number) => ["student-progress", "detail", id] as const,
   },
   libraryMedia: {
     all: ["library-media"] as const,
-    list: (params?: Record<string, unknown>) => ["library-media", "list", params] as const,
+    list: (params?: object) => ["library-media", "list", params] as const,
   },
   libraryMovements: {
     all: ["library-movements"] as const,
-    list: (params?: Record<string, unknown>) => ["library-movements", "list", params] as const,
+    list: (params?: object) => ["library-movements", "list", params] as const,
   },
   libraryCards: {
     all: ["library-cards"] as const,
-    list: (params?: Record<string, unknown>) => ["library-cards", "list", params] as const,
+    list: (params?: object) => ["library-cards", "list", params] as const,
   },
   activities: {
     all: ["activities"] as const,
-    list: (params?: Record<string, unknown>) => ["activities", "list", params] as const,
+    list: (params?: object) => ["activities", "list", params] as const,
   },
   activityTypes: {
     all: ["activity-types"] as const,
-    list: (params?: Record<string, unknown>) => ["activity-types", "list", params] as const,
+    list: (params?: object) => ["activity-types", "list", params] as const,
   },
   facilities: {
     all: ["facilities"] as const,
-    list: (params?: Record<string, unknown>) => ["facilities", "list", params] as const,
+    list: (params?: object) => ["facilities", "list", params] as const,
   },
   assets: {
     all: ["assets"] as const,
-    list: (params?: Record<string, unknown>) => ["assets", "list", params] as const,
+    list: (params?: object) => ["assets", "list", params] as const,
   },
   signup: {
     goals: ["signup", "goals"] as const,
@@ -255,7 +260,7 @@ export const queryKeys = {
   },
   ieltsExam: {
     skills: (examId: number) => ["ielts-exam", examId, "skills"] as const,
-    contentPool: (examId: number, filters?: Record<string, unknown>) => ["ielts-exam", examId, "content-pool", filters] as const,
+    contentPool: (examId: number, filters?: object) => ["ielts-exam", examId, "content-pool", filters] as const,
     validation: (examId: number) => ["ielts-exam", examId, "validation"] as const,
   },
   examSession: {
@@ -263,7 +268,7 @@ export const queryKeys = {
     status: (examId: number) => ["exam-session", examId, "status"] as const,
   },
   grading: {
-    queue: (params?: Record<string, unknown>) => ["grading", "queue", params] as const,
+    queue: (params?: object) => ["grading", "queue", params] as const,
     response: (attemptId: number, skill: string) => ["grading", attemptId, "response", skill] as const,
     rubric: (attemptId: number, skill: string) => ["grading", attemptId, "rubric", skill] as const,
   },
@@ -279,11 +284,11 @@ export const queryKeys = {
     englishTaxonomy: ["ai-course", "english", "taxonomy"] as const,
   },
   entityOnboarding: {
-    credentials: (params?: Record<string, unknown>) => ["entity-onboarding", "credentials", params] as const,
+    credentials: (params?: object) => ["entity-onboarding", "credentials", params] as const,
   },
   adaptiveEngine: {
     dashboard: ["adaptive-engine", "dashboard"] as const,
-    students: (params?: Record<string, unknown>) => ["adaptive-engine", "students", params] as const,
+    students: (params?: object) => ["adaptive-engine", "students", params] as const,
     signals: (studentId: number) => ["adaptive-engine", "signals", studentId] as const,
     ability: (studentId: number) => ["adaptive-engine", "ability", studentId] as const,
     settings: ["adaptive-engine", "settings"] as const,
@@ -296,7 +301,7 @@ export const queryKeys = {
     current: ["branding", "current"] as const,
   },
   scoreRelease: {
-    pending: (params?: Record<string, unknown>) => ["score-release", "pending", params] as const,
+    pending: (params?: object) => ["score-release", "pending", params] as const,
   },
   verification: {
     verify: (hash: string) => ["verification", hash] as const,

src/hooks/queries/useAIFeedback.ts

@@ -0,0 +1,70 @@
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+
+import { aiFeedbackService } from "@/services/ai-feedback.service";
+import type {
+  AIFeedbackStatus,
+  AIFeedbackSubjectType,
+  AIFeedbackSubmitInput,
+} from "@/types/ai-feedback";
+
+const KEY_ROOT = ["ai", "feedback"] as const;
+
+export function useAIFeedbackSummary(
+  subjectType: AIFeedbackSubjectType | undefined,
+  subjectId: number | undefined,
+) {
+  return useQuery({
+    enabled: !!subjectType && !!subjectId,
+    queryKey: [...KEY_ROOT, "summary", subjectType, subjectId] as const,
+    queryFn: () =>
+      aiFeedbackService.summary(
+        subjectType as AIFeedbackSubjectType,
+        subjectId as number,
+      ),
+  });
+}
+
+export function useSubmitAIFeedback() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (input: AIFeedbackSubmitInput) => aiFeedbackService.submit(input),
+    onSuccess: (_res, vars) => {
+      qc.invalidateQueries({
+        queryKey: [...KEY_ROOT, "summary", vars.subject_type, vars.subject_id],
+      });
+      qc.invalidateQueries({ queryKey: [...KEY_ROOT, "list"] });
+    },
+  });
+}
+
+export function useAIFeedbackList(
+  params: {
+    status?: AIFeedbackStatus;
+    rating?: "up" | "down";
+    subject_type?: AIFeedbackSubjectType;
+    prompt_key?: string;
+    page?: number;
+    size?: number;
+  } = {},
+) {
+  return useQuery({
+    queryKey: [...KEY_ROOT, "list", params] as const,
+    queryFn: () => aiFeedbackService.list(params),
+  });
+}
+
+export function useResolveAIFeedback() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      id,
+      status,
+      notes,
+    }: {
+      id: number;
+      status: Exclude<AIFeedbackStatus, "open">;
+      notes?: string;
+    }) => aiFeedbackService.resolve(id, status, notes),
+    onSuccess: () => qc.invalidateQueries({ queryKey: KEY_ROOT }),
+  });
+}

src/hooks/queries/useAIPrompts.ts

@@ -0,0 +1,52 @@
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+
+import { aiPromptService } from "@/services/ai-prompt.service";
+import type { AIPromptCreateInput } from "@/types/ai-prompt";
+
+const KEY_ROOT = ["ai", "prompts"] as const;
+
+export function useAIPromptKeys(params: { search?: string; page?: number; size?: number } = {}) {
+  return useQuery({
+    queryKey: [...KEY_ROOT, "keys", params] as const,
+    queryFn: () => aiPromptService.listKeys(params),
+  });
+}
+
+export function useAIPromptVersions(key: string | undefined) {
+  return useQuery({
+    enabled: !!key,
+    queryKey: [...KEY_ROOT, "versions", key] as const,
+    queryFn: () => aiPromptService.listVersions(key as string),
+  });
+}
+
+export function useAIPrompt(id: number | undefined) {
+  return useQuery({
+    enabled: !!id,
+    queryKey: [...KEY_ROOT, "detail", id] as const,
+    queryFn: () => aiPromptService.get(id as number),
+  });
+}
+
+export function useCreateAIPrompt() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (input: AIPromptCreateInput) => aiPromptService.create(input),
+    onSuccess: () => qc.invalidateQueries({ queryKey: KEY_ROOT }),
+  });
+}
+
+export function useActivateAIPrompt() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (id: number) => aiPromptService.activate(id),
+    onSuccess: () => qc.invalidateQueries({ queryKey: KEY_ROOT }),
+  });
+}
+
+export function useRenderAIPrompt() {
+  return useMutation({
+    mutationFn: ({ id, variables }: { id: number; variables: Record<string, string> }) =>
+      aiPromptService.render(id, variables),
+  });
+}

src/hooks/queries/useAcademic.ts

@@ -66,7 +66,10 @@ export function useGenerateTerms() {
   const qc = useQueryClient();
   return useMutation({
     mutationFn: (yearId: number) => academicService.generateTerms(yearId),
-    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.academicTerms.all }),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: queryKeys.academicTerms.all });
+      qc.invalidateQueries({ queryKey: queryKeys.academicYears.all });
+    },
   });
 }
 

src/hooks/queries/useAiCourse.ts

@@ -1,7 +1,10 @@
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { queryKeys } from "./keys";
-import { aiCourseService } from "@/services/ai-course.service";
+import {
-import type { ExaminerReview } from "@/types";
+  aiCourseService,
+  type AiCourseCreateEnglishRequest,
+  type AiCourseCreateIeltsRequest,
+} from "@/services/ai-course.service";
 
 export function useAiCourse(courseId: number | undefined) {
   return useQuery({
@@ -22,7 +25,7 @@ export function useAiCourseTracks(courseId: number | undefined) {
 export function useCreateEnglishCourse() {
   const qc = useQueryClient();
   return useMutation({
-    mutationFn: (data: { current_level: string; target_level: string; learning_style: string[] }) =>
+    mutationFn: (data: AiCourseCreateEnglishRequest) =>
       aiCourseService.createEnglish(data),
     onSuccess: () => {
       qc.invalidateQueries({ queryKey: ["ai-course"] });
@@ -33,7 +36,7 @@ export function useCreateEnglishCourse() {
 export function useCreateIeltsCourse() {
   const qc = useQueryClient();
   return useMutation({
-    mutationFn: (data: { exam_type: string; target_band: number; skills: string[] }) =>
+    mutationFn: (data: AiCourseCreateIeltsRequest) =>
       aiCourseService.createIelts(data),
     onSuccess: () => {
       qc.invalidateQueries({ queryKey: ["ai-course"] });
@@ -63,8 +66,8 @@ export function useApproveQuality() {
 export function useRejectQuality() {
   const qc = useQueryClient();
   return useMutation({
-    mutationFn: ({ courseId, notes }: { courseId: number; notes: string }) =>
+    mutationFn: ({ courseId, reason }: { courseId: number; reason: string }) =>
-      aiCourseService.rejectQuality(courseId, notes),
+      aiCourseService.rejectQuality(courseId, reason),
     onSuccess: (_d, { courseId }) => {
       qc.invalidateQueries({ queryKey: queryKeys.aiCourse.quality(courseId) });
     },
@@ -89,7 +92,8 @@ export function useIeltsValidation(courseId: number | undefined) {
 export function useSubmitExaminerReview() {
   const qc = useQueryClient();
   return useMutation({
-    mutationFn: (data: ExaminerReview) => aiCourseService.submitExaminerReview(data),
+    mutationFn: (data: { logId: number; action: string; examiner_notes?: string }) =>
+      aiCourseService.submitExaminerReview(data.logId, { action: data.action, examiner_notes: data.examiner_notes }),
     onSuccess: () => {
       qc.invalidateQueries({ queryKey: ["ai-course"] });
     },

src/hooks/queries/useCourseware.ts

@@ -120,6 +120,19 @@ export function useUploadMaterial() {
   });
 }
 
+export function useCreateMaterialFromResource() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ chapterId, resourceId, name }: { chapterId: number; resourceId: number; name?: string }) =>
+      coursewareService.createMaterialFromResource(chapterId, resourceId, name),
+    onSuccess: (_, { chapterId }) => {
+      qc.invalidateQueries({ queryKey: queryKeys.chapterMaterials(chapterId) });
+      qc.invalidateQueries({ queryKey: queryKeys.chapterProgress(chapterId) });
+      qc.invalidateQueries({ queryKey: queryKeys.chapter(chapterId) });
+    },
+  });
+}
+
 export function useDeleteMaterial() {
   const qc = useQueryClient();
   return useMutation({
@@ -145,13 +158,24 @@ export function useMarkMaterialViewed() {
   });
 }
 
+export function useCourseCompletion(courseId: number) {
+  return useQuery({
+    queryKey: queryKeys.courseCompletion(courseId),
+    queryFn: () => coursewareService.getCourseCompletion(courseId),
+    enabled: !!courseId,
+  });
+}
+
 export function useCompleteChapter() {
   const qc = useQueryClient();
   return useMutation({
-    mutationFn: (chapterId: number) => coursewareService.markChapterComplete(chapterId),
+    mutationFn: ({ chapterId, courseId }: { chapterId: number; courseId: number }) =>
-    onSuccess: (_, chapterId) => {
+      coursewareService.markChapterComplete(chapterId),
+    onSuccess: (_, { chapterId, courseId }) => {
       qc.invalidateQueries({ queryKey: queryKeys.chapterProgress(chapterId) });
       qc.invalidateQueries({ queryKey: queryKeys.chapter(chapterId) });
+      qc.invalidateQueries({ queryKey: queryKeys.courseCompletion(courseId) });
+      qc.invalidateQueries({ queryKey: queryKeys.lms.myCourses });
     },
   });
 }

src/hooks/queries/useExamReview.ts

@@ -0,0 +1,47 @@
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+
+import {
+  examReviewService,
+  type ExamReviewQueueParams,
+} from "@/services/exam-review.service";
+
+import { queryKeys } from "./keys";
+
+export function useExamReviewQueue(params: ExamReviewQueueParams = {}) {
+  return useQuery({
+    queryKey: queryKeys.exams.reviewQueue(params),
+    queryFn: () => examReviewService.queue(params),
+  });
+}
+
+export function useExamReviewDetail(examId: number | undefined) {
+  return useQuery({
+    enabled: !!examId,
+    queryKey: queryKeys.exams.reviewDetail(examId ?? -1),
+    queryFn: () => examReviewService.detail(examId as number),
+  });
+}
+
+export function useApproveExamReview() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ examId, notes }: { examId: number; notes?: string }) =>
+      examReviewService.approve(examId, notes),
+    onSuccess: (_data, { examId }) => {
+      qc.invalidateQueries({ queryKey: ["exams", "review"] });
+      qc.invalidateQueries({ queryKey: queryKeys.exams.reviewDetail(examId) });
+    },
+  });
+}
+
+export function useRejectExamReview() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ examId, notes }: { examId: number; notes: string }) =>
+      examReviewService.reject(examId, notes),
+    onSuccess: (_data, { examId }) => {
+      qc.invalidateQueries({ queryKey: ["exams", "review"] });
+      qc.invalidateQueries({ queryKey: queryKeys.exams.reviewDetail(examId) });
+    },
+  });
+}

src/hooks/queries/useExamSession.ts

@@ -29,6 +29,7 @@ export function useExamAutoSave() {
 
 export function useExamSubmit() {
   return useMutation({
-    mutationFn: (examId: number) => examSessionService.submit(examId),
+    mutationFn: (data: { examId: number; attempt_id: number; answers: { question_id: number; answer: unknown }[] }) =>
+      examSessionService.submit(data.examId, { attempt_id: data.attempt_id, answers: data.answers }),
   });
 }

src/hooks/queries/useExamTemplates.ts

@@ -47,7 +47,7 @@ export function useIeltsAutoAssemble() {
   });
 }
 
-export function useIeltsValidation(examId: number) {
+export function useIeltsExamValidation(examId: number) {
   return useQuery({
     queryKey: queryKeys.ieltsExam.validation(examId),
     queryFn: () => ieltsExamService.validate(examId),

src/hooks/queries/useFees.ts

@@ -1,9 +1,9 @@
 import { useQuery } from "@tanstack/react-query";
 import { queryKeys } from "./keys";
-import { feesService } from "@/services/fees.service";
+import { feesService, type FeesPlanFilters } from "@/services/fees.service";
 import type { PaginationParams } from "@/types";
 
-export function useFeesPlans(params?: PaginationParams) {
+export function useFeesPlans(params?: FeesPlanFilters) {
   return useQuery({
     queryKey: queryKeys.feesPlans.list(params),
     queryFn: () => feesService.listFeesPlans(params),
@@ -18,7 +18,7 @@ export function useFeesPlan(id: number) {
   });
 }
 
-export function useStudentFees(params?: PaginationParams) {
+export function useStudentFees(params?: FeesPlanFilters) {
   return useQuery({
     queryKey: queryKeys.studentFees.list(params),
     queryFn: () => feesService.listStudentFees(params),

src/hooks/queries/useGradebook.ts

@@ -11,10 +11,11 @@ export function useGradebooks(params?: PaginationParams) {
   });
 }
 
-export function useGradebookLines(params?: PaginationParams) {
+export function useGradebookLines(params?: PaginationParams & { gradebook_id?: number }) {
   return useQuery({
     queryKey: queryKeys.gradebookLines.list(params),
     queryFn: () => gradebookService.listGradebookLines(params),
+    enabled: params?.gradebook_id ? !!params.gradebook_id : true,
   });
 }
 

src/hooks/queries/useLms.ts

@@ -1,7 +1,7 @@
 import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 import { queryKeys } from "./keys";
 import { lmsService } from "@/services";
-import type { PaginationParams, CourseCreateRequest, LmsStudentCreateRequest, LmsTeacherCreateRequest } from "@/types";
+import type { PaginationParams, CourseCreateRequest, LmsStudentCreateRequest, LmsTeacherCreateRequest, EnrollStudentRequest, BulkEnrollRequest } from "@/types";
 
 export function useCourses(params?: PaginationParams & { status?: string }) {
   return useQuery({
@@ -26,6 +26,38 @@ export function useCreateCourse() {
   });
 }
 
+export function useMyEnrolledCourses() {
+  return useQuery({
+    queryKey: queryKeys.lms.myCourses,
+    queryFn: () => lmsService.getMyEnrolledCourses(),
+  });
+}
+
+export function useEnrollStudent() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ studentId, data }: { studentId: number; data: EnrollStudentRequest }) =>
+      lmsService.enrollStudent(studentId, data),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["lms", "students"] });
+      qc.invalidateQueries({ queryKey: queryKeys.lms.myCourses });
+    },
+  });
+}
+
+export function useBulkEnroll() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ courseId, data }: { courseId: number; data: BulkEnrollRequest }) =>
+      lmsService.bulkEnrollInCourse(courseId, data),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["lms", "students"] });
+      qc.invalidateQueries({ queryKey: ["lms", "courses"] });
+      qc.invalidateQueries({ queryKey: queryKeys.lms.myCourses });
+    },
+  });
+}
+
 export function useStudents(params?: PaginationParams & { search?: string; batch_id?: number }) {
   return useQuery({
     queryKey: queryKeys.lms.students(params),

src/hooks/queries/useStudentProgress.ts

@@ -1,11 +1,18 @@
 import { useQuery } from "@tanstack/react-query";
 import { queryKeys } from "./keys";
-import { studentProgressService } from "@/services/student-progress.service";
+import { studentProgressService, type StudentProgressFilters } from "@/services/student-progress.service";
-import type { PaginationParams } from "@/types";
 
-export function useStudentProgressList(params?: PaginationParams) {
+export function useStudentProgressList(params?: StudentProgressFilters) {
   return useQuery({
     queryKey: queryKeys.studentProgress.list(params),
     queryFn: () => studentProgressService.listProgress(params),
   });
 }
+
+export function useStudentProgressDetail(id: number | null | undefined) {
+  return useQuery({
+    queryKey: queryKeys.studentProgress.detail(id ?? 0),
+    queryFn: () => studentProgressService.getProgress(id as number),
+    enabled: !!id,
+  });
+}

src/i18n/index.ts

@@ -0,0 +1,80 @@
+/**
+ * EnCoach i18n bootstrap.
+ *
+ * We keep the translation strings in TypeScript modules (one per locale) so
+ * they go through type-checking and tree-shaking, and so non-translators
+ * can't ship a broken JSON file that blocks the build.
+ *
+ * Language selection order (product decision: English is the default UI
+ * language at startup; Arabic is opt-in via the language toggle):
+ *   1. localStorage key ``encoach-lang`` (explicit user pick, persisted)
+ *   2. ``en`` — fallback used on first visit, regardless of browser locale
+ *
+ * We intentionally do **not** read ``navigator.language`` anymore: an
+ * Arabic-locale browser should still land on the English UI the first time
+ * a user visits, because the QA team and the product manager both sign off
+ * against the English baseline. Users that actively want Arabic flip the
+ * toggle once and the preference is remembered from then on.
+ *
+ * RTL handling: whenever the active language switches to one of RTL_LANGS,
+ * we flip ``document.documentElement.dir`` so Tailwind's RTL utilities +
+ * Radix primitives pick up the change automatically.
+ */
+
+import i18n from "i18next";
+import LanguageDetector from "i18next-browser-languagedetector";
+import { initReactI18next } from "react-i18next";
+
+import ar from "./locales/ar";
+import en from "./locales/en";
+
+const RTL_LANGS = new Set(["ar", "he", "fa", "ur"]);
+
+export const SUPPORTED_LANGS = [
+  { code: "en", label: "English" },
+  { code: "ar", label: "العربية" },
+] as const;
+
+export type SupportedLang = (typeof SUPPORTED_LANGS)[number]["code"];
+
+export const DEFAULT_LANG: SupportedLang = "en";
+
+i18n
+  .use(LanguageDetector)
+  .use(initReactI18next)
+  .init({
+    resources: {
+      en: { translation: en },
+      ar: { translation: ar },
+    },
+    // Explicit default — english is the baseline UI language at startup.
+    lng: DEFAULT_LANG,
+    fallbackLng: DEFAULT_LANG,
+    supportedLngs: SUPPORTED_LANGS.map((l) => l.code),
+    interpolation: { escapeValue: false },
+    detection: {
+      // Only honour the user's saved pick. Navigator/htmlTag detection was
+      // removed so Arabic-locale browsers don't silently boot the UI in
+      // Arabic before the user has chosen.
+      order: ["localStorage"],
+      caches: ["localStorage"],
+      lookupLocalStorage: "encoach-lang",
+    },
+    returnEmptyString: false,
+  });
+
+export function applyDirectionForLang(lang: string) {
+  const base = lang.split("-")[0];
+  const dir = RTL_LANGS.has(base) ? "rtl" : "ltr";
+  if (typeof document !== "undefined") {
+    document.documentElement.dir = dir;
+    document.documentElement.lang = base;
+  }
+}
+
+if (typeof window !== "undefined") {
+  applyDirectionForLang(i18n.language || "en");
+  i18n.on("languageChanged", applyDirectionForLang);
+}
+
+export default i18n;

src/i18n/locales/ar.ts

@@ -0,0 +1,876 @@
+import type { Translations } from "./en";
+
+/** Arabic (RTL) translations. Keep key parity with `en.ts`. */
+const ar: Translations = {
+  common: {
+    cancel: "إلغاء",
+    save: "حفظ",
+    delete: "حذف",
+    edit: "تعديل",
+    close: "إغلاق",
+    back: "رجوع",
+    next: "التالي",
+    search: "بحث",
+    loading: "جارٍ التحميل…",
+    error: "خطأ",
+    retry: "إعادة المحاولة",
+    yes: "نعم",
+    no: "لا",
+    actions: "إجراءات",
+    status: "الحالة",
+    settings: "الإعدادات",
+    signOut: "تسجيل الخروج",
+    viewAll: "عرض الكل",
+    dismiss: "تجاهل",
+    pending: "قيد الانتظار",
+    active: "نشط",
+    inactive: "غير نشط",
+    available: "متاح",
+    unavailable: "غير متاح",
+    name: "الاسم",
+    email: "البريد الإلكتروني",
+    user: "المستخدم",
+    home: "الرئيسية",
+    saving: "جارٍ الحفظ…",
+    disabled: "معطّل",
+  },
+  auth: {
+    signIn: "تسجيل الدخول",
+    signInTitle: "تسجيل الدخول إلى EnCoach",
+    welcomeBack: "مرحباً بعودتك",
+    signInDescription: "سجّل الدخول إلى حسابك للمتابعة",
+    email: "البريد الإلكتروني",
+    emailPlaceholder: "you@example.com",
+    password: "كلمة المرور",
+    rememberMe: "تذكرني",
+    forgotPassword: "هل نسيت كلمة المرور؟",
+    needAccount: "ليس لديك حساب؟",
+    signUp: "إنشاء حساب",
+    invalidCredentials: "البريد الإلكتروني أو كلمة المرور غير صحيحة",
+    missingCredentials: "يرجى إدخال البريد الإلكتروني وكلمة المرور",
+    loginFailedTitle: "فشل تسجيل الدخول",
+    errorTitle: "خطأ",
+  },
+  nav: {
+    smartWizard: "المعالج الذكي",
+    quickSetup: "الإعداد السريع",
+    coursePlans: "خطط المقررات (الذكاء الاصطناعي)",
+    adminDashboard: "لوحة الإدارة",
+    platformDashboard: "لوحة المنصّة",
+    dashboard: "لوحة التحكم",
+    courses: "الدورات",
+    myCourses: "دوراتي",
+    students: "الطلاب",
+    teachers: "المعلمون",
+    batches: "الدفعات",
+    timetable: "الجدول الدراسي",
+    reports: "التقارير",
+    assignments: "الواجبات",
+    examsList: "قائمة الاختبارات",
+    examStructures: "هياكل الاختبارات",
+    rubrics: "معايير التقييم",
+    generation: "التوليد",
+    reviewQueue: "قائمة المراجعة",
+    aiPrompts: "وكلاء الذكاء الاصطناعي والأدوات",
+    aiFeedback: "ملاحظات الذكاء الاصطناعي",
+    approvalWorkflows: "سير عمل الموافقات",
+    taxonomy: "التصنيف",
+    resources: "الموارد",
+    resourceLibrary: "مكتبة الموارد",
+    academicYears: "السنوات الأكاديمية",
+    departments: "الأقسام",
+    admissions: "القبول",
+    admissionRegister: "سجل القبول",
+    examSessions: "جلسات الاختبارات",
+    marksheets: "كشوفات الدرجات",
+    studentLeave: "إجازات الطلاب",
+    fees: "الرسوم والمدفوعات",
+    lessons: "الدروس",
+    gradebook: "سجل الدرجات",
+    studentProgress: "تقدم الطالب",
+    library: "المكتبة",
+    activities: "الأنشطة",
+    facilities: "المرافق",
+    users: "المستخدمون",
+    entities: "الكيانات",
+    classrooms: "الفصول",
+    userRoles: "أدوار المستخدمين",
+    rolesPermissions: "الأدوار والصلاحيات",
+    authorityMatrix: "مصفوفة الصلاحيات",
+    studentPerformance: "أداء الطلاب",
+    statsCorporate: "إحصاءات الشركات",
+    record: "السجل",
+    vocabulary: "المفردات",
+    grammar: "القواعد",
+    faqManager: "إدارة الأسئلة الشائعة",
+    notificationRules: "قواعد الإشعارات",
+    approvalConfig: "إعدادات الموافقات",
+    paymentRecord: "سجل المدفوعات",
+    tickets: "التذاكر",
+    settings: "الإعدادات",
+    profile: "الملف الشخصي",
+    privacy: "مركز الخصوصية",
+    subjectRegistration: "تسجيل المواد",
+    mySubjects: "موادي",
+    grades: "الدرجات",
+    attendance: "الحضور",
+    myJourney: "رحلتي",
+    discussions: "المناقشات",
+    messages: "الرسائل",
+    announcements: "الإعلانات",
+  },
+  sidebarGroup: {
+    overview: "نظرة عامة",
+    lms: "نظام التعلم",
+    adaptiveLearning: "التعلم التكيّفي",
+    institutional: "المؤسسي",
+    academic: "الأكاديمي",
+    management: "الإدارة",
+    reports: "التقارير",
+    configuration: "الإعدادات",
+    training: "التدريب",
+    support: "الدعم",
+    learning: "التعلم",
+    progress: "التقدم",
+    communication: "التواصل",
+    account: "الحساب",
+    teaching: "التدريس",
+  },
+  breadcrumb: {
+    home: "الرئيسية",
+    admin: "الإدارة",
+    dashboard: "لوحة التحكم",
+    platform: "المنصّة",
+    exam: "الاختبار",
+    review: "مراجعة",
+    ai: "الذكاء الاصطناعي",
+    feedback: "ملاحظات",
+  },
+  userMenu: {
+    profile: "الملف الشخصي",
+    settings: "الإعدادات",
+    logout: "تسجيل الخروج",
+    userFallback: "مستخدم",
+  },
+  chrome: {
+    needHelp: "هل تحتاج مساعدة؟",
+    ticketsTooltip: "تذاكر الدعم",
+    aiSearchPlaceholder: "اسأل عن أي شيء… مثال: «اعرض الطلاب ذوي الحضور المنخفض»",
+    aiSearching: "الذكاء الاصطناعي يبحث…",
+    aiRelatedQueries: "استفسارات ذات صلة",
+    aiNoResults: "لا توجد نتائج لـ «{{q}}». جرّب سؤالاً أو كلمة مفتاحية مختلفة.",
+    aiSearchFailedTitle: "فشل البحث",
+    aiSearchFailedDesc: "تعذّر إكمال بحث الذكاء الاصطناعي.",
+    portalSuffix: "البوابة",
+    adminAlt: "EnCoach",
+    adminAltLong: "EnCoach — أطلق إمكاناتك مع منصّة مدعومة بالذكاء الاصطناعي",
+    toggleSidebar: "إظهار/إخفاء الشريط الجانبي",
+  },
+  notifications: {
+    title: "الإشعارات",
+    empty: "ليست لديك إشعارات جديدة.",
+    ariaLabel: "الإشعارات",
+  },
+  theme: {
+    title: "المظهر",
+    light: "فاتح",
+    dark: "داكن",
+    system: "النظام",
+    toggleLabel: "تبديل المظهر",
+  },
+  language: {
+    change: "تغيير اللغة",
+    label: "اللغة",
+  },
+  roles: {
+    student: "طالب",
+    teacher: "معلّم",
+    admin: "مسؤول",
+    developer: "مطوّر",
+    corporate: "شركة",
+    mastercorporate: "شركة رئيسية",
+    agent: "وكيل",
+  },
+  dashboard: {
+    greetingFallback: "الطالب",
+  },
+  studentDash: {
+    welcome: "مرحباً بعودتك، {{name}}!",
+    subtitle: "إليك نظرة عامة على تقدّمك الدراسي.",
+    enrolledCourses: "الدورات المسجّلة",
+    overallProgress: "التقدم العام",
+    averageGrade: "متوسط الدرجات",
+    totalChapters: "إجمالي الفصول",
+    myCourses: "دوراتي",
+    noEnrolledCourses: "لم تسجّل في أي دورة بعد.",
+    chaptersMaterials: "{{chapters}} فصل · {{materials}} مادة",
+    quickActions: "إجراءات سريعة",
+    enrollToStart: "سجّل في دورة للبدء.",
+    continue: "متابعة",
+    start: "ابدأ",
+    chaptersDone: "{{done}}/{{total}} فصل مكتمل",
+    recentGrades: "آخر الدرجات",
+    noGradesYet: "لا توجد درجات بعد.",
+  },
+  teacherDash: {
+    title: "لوحة المعلّم",
+    subtitle: "نظرة عامة على نشاطك التدريسي.",
+    activeCourses: "الدورات النشطة",
+    totalStudents: "إجمالي الطلاب",
+    pendingGrading: "تقييمات قيد الانتظار",
+    avgPassRate: "متوسط نسبة النجاح",
+    myCourses: "دوراتي",
+    colCourse: "الدورة",
+    colStudents: "الطلاب",
+    colStatus: "الحالة",
+    recentActivity: "النشاط الأخير",
+    submitted: "تم الإرسال {{when}}",
+    pending: "قيد الانتظار",
+  },
+  adminDash: {
+    title: "لوحة الإدارة",
+    subtitle: "نظرة عامة على المنصّة والمؤشرات الرئيسية.",
+    addStudent: "إضافة طالب",
+    newCourse: "دورة جديدة",
+    totalStudents: "إجمالي الطلاب",
+    activeCourses: "الدورات النشطة",
+    teachers: "المعلمون",
+    activeBatches: "الدفعات النشطة",
+    openTickets: "تذاكر مفتوحة",
+    revenue: "الإيرادات",
+    departments: "الأقسام",
+    classrooms: "الفصول",
+    subjects: "المواد",
+    resources: "الموارد",
+    coursesOverview: "نظرة عامة على الدورات",
+    batchCapacity: "سعة الدفعات",
+    noCourseData: "لا توجد بيانات دورات متاحة.",
+    noBatchData: "لا توجد بيانات دفعات متاحة.",
+    quickSummary: "ملخّص سريع",
+    colModule: "الوحدة",
+    colCount: "العدد",
+    colStatus: "الحالة",
+    exams: "الاختبارات",
+    examSessionsCount: "{{n}} جلسة",
+    assignments: "الواجبات",
+    acrossCourses: "عبر جميع الدورات",
+    supportTickets: "تذاكر الدعم",
+    ticketsOpenCount: "{{n}} مفتوحة",
+    payments: "المدفوعات",
+    revenueTotal: "{{amount}} إجمالاً",
+    chartCapacity: "السعة",
+    chartEnrolled: "المسجّلون",
+  },
+  examPopup: {
+    title: "اختبارات قادمة ({{n}})",
+    activeNow: "متاح الآن",
+    from: "من:",
+    to: "إلى:",
+    startExam: "ابدأ الاختبار",
+    notAvailableYet: "غير متاح بعد",
+    willBeAvailable: "سيتاح الاختبار عندما يصبح نشطاً",
+    notActive: "الاختبار غير نشط حالياً",
+  },
+  errors: {
+    somethingWrong: "حدث خطأ ما",
+    unexpectedDescription: "حدث خطأ غير متوقع. يرجى تحديث الصفحة والمحاولة مرة أخرى.",
+    errorDetails: "تفاصيل الخطأ",
+    refreshPage: "تحديث الصفحة",
+    notFoundCode: "404",
+    notFoundMessage: "عذراً! الصفحة غير موجودة",
+    returnHome: "العودة إلى الرئيسية",
+  },
+  ai: {
+    assistantLabel: "مساعد الذكاء الاصطناعي",
+    assistantTitle: "مساعد EnCoach الذكي",
+    placeholder: "اسأل عن أي شيء…",
+    send: "إرسال",
+    thinking: "يفكّر…",
+    emptyLine1: "اسألني عن أي شيء يخص المنصّة،",
+    emptyLine2: "أو اختر إجراءً سريعاً من الأعلى.",
+    fallbackReply: "عذراً، تعذّر الوصول إلى المساعد. يرجى المحاولة مرة أخرى بعد قليل.",
+    replyErrorTitle: "تعذّر الحصول على ردّ",
+    replyErrorDesc: "حدث خطأ ما. يرجى المحاولة مرة أخرى.",
+    quickHealth: "ملخّص حالة المنصّة",
+    quickDropouts: "عرض مخاطر التسرّب",
+    quickCompare: "مقارنة أداء الدورات",
+    quickBatch: "اقتراحات لتحسين الدفعات",
+    tipLabel: "نصيحة الذكاء الاصطناعي",
+    insightLabel: "رؤية الذكاء الاصطناعي",
+    recommendationLabel: "توصية الذكاء الاصطناعي",
+    categoryTipLabel: "نصيحة {{category}} من الذكاء الاصطناعي",
+    loadingTip: "جارٍ تحميل النصيحة…",
+    loadingInsights: "جارٍ تحميل الرؤى…",
+    loadingAlerts: "جارٍ تحميل التنبيهات…",
+    couldNotLoadTip: "تعذّر تحميل النصيحة.",
+    couldNotLoadInsights: "تعذّر تحميل الرؤى.",
+    couldNotLoadAlerts: "تعذّر تحميل التنبيهات.",
+    noTipAvailable: "لا توجد نصيحة متاحة.",
+    noTipForContext: "لا توجد نصيحة لهذا السياق بعد.",
+    noInsightsAvailable: "لا توجد رؤى متاحة لهذا العرض.",
+    noAlertsRightNow: "لا توجد تنبيهات ذكاء اصطناعي حالياً.",
+    alertsUnavailable: "التنبيهات غير متاحة",
+    insightsUnavailable: "الرؤى غير متاحة",
+    platformInsightsTitle: "رؤى المنصّة من الذكاء الاصطناعي",
+  },
+  privacy: {
+    title: "مركز الخصوصية",
+    description:
+      "إدارة بياناتك الشخصية لدى EnCoach وفقاً للائحة حماية البيانات العامة وما يماثلها.",
+    exportTitle: "تنزيل بياناتك",
+    exportDescription:
+      "سنقوم بتجميع ملفك الشخصي، عضويات الكيانات، محاولات الاختبارات، الإجابات، ملاحظات الذكاء الاصطناعي، والتذاكر في ملف JSON واحد.",
+    exportButton: "تنزيل بياناتي",
+    exportPreparing: "جارٍ تحضير التصدير…",
+    exportSuccess: "تم تنزيل البيانات بنجاح",
+    deleteTitle: "حذف حسابي",
+    deleteDescription:
+      "سيتم إخفاء هوية ملفك الشخصي وإزالة الحقول الشخصية من سجلاتنا. سيتم الاحتفاظ بمحاولات الاختبارات (دون معلومات تعريفية) لسلامة الإحصائيات. لا يمكن التراجع عن هذا الإجراء.",
+    deleteButton: "محو حسابي",
+    deleteErasing: "جارٍ المحو…",
+    confirmTitle: "هل تريد محو حسابك؟",
+    confirmDescription:
+      "سنقوم بإخفاء هوية بياناتك الشخصية وتعطيل تسجيل الدخول. ستبقى التحليلات المجمعة لكنها لن تكون مرتبطة بك.",
+    confirmTypeDelete: "اكتب DELETE للتأكيد",
+    confirmErased: "تم محو حسابك. جارٍ تسجيل الخروج…",
+  },
+  feedback: {
+    thumbsUp: "إعجاب",
+    thumbsDown: "عدم إعجاب",
+    whatWentWrong: "ما الخطأ الذي حدث؟",
+    commentPlaceholder: "مثال: إجابة خاطئة، صياغة مربكة، خارج الموضوع…",
+    commentRequired: "من فضلك أخبرنا بالخطأ.",
+    submit: "إرسال الملاحظات",
+  },
+  quickSetup: {
+    adminTitle: "الإعداد السريع",
+    adminSubtitle:
+      "كل ما تحتاجه لإطلاق منصّة جاهزة للامتحانات بالترتيب الموصى به. يتم تعليم كل خطوة تلقائياً عند اكتمالها.",
+    teacherTitle: "الإعداد السريع",
+    teacherSubtitle: "ابدأ دورة جديدة من البداية إلى النهاية، ثم انتقل إلى المهام اليومية الشائعة.",
+    progressLabel: "التقدم",
+    recommendedFlow: "المسار الموصى به",
+    otherQuickCreates: "إنشاء سريع آخر",
+    ready: "جاهز",
+    start: "ابدأ",
+    review: "مراجعة",
+    open: "فتح",
+    helpAria: "عرض المساعدة",
+    admin: {
+      step1: {
+        title: "أنشئ معيار تقييم (Rubric)",
+        description: "حدّد معايير التقييم لمهام الكتابة والتحدّث. تُستخدم هذه المعايير لاحقاً عند توليد الامتحانات واعتمادها.",
+        help: "المعيار هو شبكة تقييم (درجات × عناصر). يمكنك البدء من قالب جاهز أو تركيبه من عناصر محدّدة مسبقاً.",
+      },
+      step2: {
+        title: "عرّف بنية الامتحان",
+        description: "حدّد الأقسام والمهام والأجزاء التي يجب أن يحتويها كل امتحان من هذا النوع سواء مولّداً أو مخصّصاً.",
+        help: "البنى تضمن الاتساق. مثلاً: بنية IELTS للكتابة تحتوي على المهمة ١ (١٥٠ كلمة) والمهمة ٢ (٢٥٠ كلمة)؛ سيرفض النظام الإرسال إن نقصت إحداهما.",
+      },
+      step3: {
+        title: "ولّد أو أنشئ امتحاناً",
+        description: "استخدم التوليد بالذكاء الاصطناعي (الأسرع) أو أنشئ امتحاناً مخصّصاً يدوياً. احفظ كمسودة أو أرسله للموافقة.",
+        help: "التوليد يختار بنية ومعيار تقييم ثم يُنتج الأسئلة. المنشئ المخصّص يتيح لك تحكّماً كاملاً للامتحانات التجريبية.",
+      },
+      step4: {
+        title: "راجع واعتمد",
+        description: "يعتمد المصدّقون الامتحانات قبل ظهورها للطلاب. اضبط سير العمل مرة واحدة ليتم توجيه الطلبات تلقائياً.",
+        help: "قائمة الاعتماد تعرض كل امتحان في انتظار المصادقة. الرفض يعيده للمؤلّف، والقبول ينشره.",
+      },
+      step5: {
+        title: "عيّن للطلاب",
+        description: "جدول الامتحان المنشور، اختر الدفعة، وأرسله. يراه الطلاب فوراً في بوّابتهم.",
+        help: "يمكن استهداف طلاب أفراد أو دفعات أو صفوف كاملة مع مراعاة المنطقة الزمنية.",
+      },
+      quick: {
+        course: { title: "دورة جديدة", description: "أنشئ هيكل دورة ليملأها المعلّمون بالفصول." },
+        resource: { title: "رفع مورد", description: "أضف ملفات PDF أو صوت أو فيديو أو روابط إلى المكتبة المشتركة." },
+        student: { title: "إضافة طالب", description: "أنشئ حساب طالب وعيّنه إلى دفعة." },
+        teacher: { title: "إضافة معلّم", description: "ادعُ معلّماً وامنحه صلاحيات التدريس." },
+        classroom: { title: "صف جديد", description: "جمّع الطلاب لأغراض الجدولة والحضور." },
+        examSession: { title: "جدولة جلسة امتحان", description: "أنشئ جلسة امتحان مراقبة لامتحان مؤسسي." },
+        customExam: { title: "امتحان مخصّص", description: "أنشئ امتحاناً يدوياً من الصفر بتحكّم كامل." },
+        ticket: { title: "فتح تذكرة", description: "افتح تذكرة دعم نيابة عن مستخدم." },
+      },
+    },
+    teacher: {
+      step1: {
+        title: "أنشئ دورة",
+        description: "امنح دورتك اسماً، اختر المادّة، وحدّد مستواها. يمكنك تعديل الفصول بعد الإنشاء.",
+        help: "الدورات هي الحاوية للفصول والمواد والواجبات.",
+      },
+      step2: {
+        title: "أضف الفصول والمحتوى",
+        description: "افتح دورتك وأضف فصولاً تحتوي على دروس وفيديوهات واختبارات ومهام تدريب.",
+        help: "الفصول تنظّم أهداف التعلّم. استخدم الورشة الذكية لإنشاء المحتوى تلقائياً.",
+      },
+      step3: {
+        title: "ارفع الموارد",
+        description: "شارك مع طلابك ملفات PDF أو صوت أو فيديو داعمة عبر المكتبة.",
+        help: "الملفات الكبيرة مدعومة — يقبل الخادم حتى ١٢٨ ميغابايت للرفعة الواحدة.",
+      },
+      step4: {
+        title: "أنشئ واجباً",
+        description: "حوّل امتحاناً منشوراً أو مهمّة إلى واجب بتاريخ تسليم ودفعة مستهدفة.",
+        help: "تظهر الواجبات تلقائياً في لوحة كل طالب وفي جدوله.",
+      },
+      step5: {
+        title: "تابع تقدّم الطلاب",
+        description: "راقب التسليمات والحضور ورؤى التعلّم التكيّفي لصفّك.",
+        help: "يحدّد محرك التعلّم التكيّفي الطلاب المعرّضين للخطر لتتدخّل مبكّراً.",
+      },
+      quick: {
+        discussion: { title: "نقاش جديد", description: "ابدأ موضوع نقاش لصفّك." },
+        announcement: { title: "إعلان جديد", description: "أرسل رسالة لجميع طلابك." },
+        attendance: { title: "تسجيل الحضور", description: "سجّل حضور اليوم لإحدى الجلسات." },
+      },
+    },
+  },
+  wizardHub: {
+    title: "المعالج الذكي",
+    subtitle:
+      "اختر أي سيناريو وسيرشدك المعالج خطوة بخطوة. لا حاجة للبحث في الإعدادات — كلّ ضغطة على \"التالي\" تقرّبك أكثر من الإنجاز.",
+    recommendedOrder: "الترتيب الموصى به",
+    order: {
+      rubric: "أنشئ معايير التقييم (الكتابة / المحادثة)",
+      structure: "حدّد هيكل الامتحان (الأقسام والمهام والمدد)",
+      generate: "أنشئ امتحاناً تلقائياً أو يدوياً",
+      approve: "راجع الامتحانات المعلّقة واعتمدها",
+      assign: "أسند الامتحانات إلى الطلاب",
+    },
+    guided: "معالجات موجّهة",
+    advanced: "الصفحات الكاملة (متقدّم)",
+    advancedBadge: "متقدّم",
+    aiBadge: "ذكاء اصطناعي",
+    startWizard: "ابدأ المعالج",
+    openPage: "افتح الصفحة",
+    cards: {
+      rubric: {
+        title: "إنشاء معيار تقييم",
+        description: "الاسم ← المهارة ← المعايير ← الوصف ← المراجعة. للكتابة والمحادثة فقط.",
+      },
+      examStructure: {
+        title: "تعريف هيكل امتحان",
+        description: "الاسم ← الوحدات ← مهام الكتابة ← المراجعة. قالب قابل لإعادة الاستخدام.",
+      },
+      course: {
+        title: "إنشاء مساق",
+        description: "العنوان ← المستوى والسعة ← المراجعة. الفصول تُضاف من صفحة المساق.",
+      },
+      coursePlan: {
+        title: "توليد خطة مقرر (ذكاء اصطناعي)",
+        description: "اوصف المقرر فيكتب الذكاء الاصطناعي الأهداف ونتائج التعلّم لكل مهارة ونطاق القواعد وخطة التسليم أسبوعياً، ثم يولّد المواد التعليمية الجاهزة لكل أسبوع.",
+      },
+      generation: {
+        title: "توليد امتحان",
+        description: "صفحة التوليد الكاملة بخيارات المعايير والهيكل وتحكّم في كل وحدة.",
+      },
+      approval: {
+        title: "مسارات الموافقة",
+        description: "حدّد من يراجع الامتحانات، وتابع الطلبات المعلّقة.",
+      },
+      assign: {
+        title: "إسناد إلى الطلاب",
+        description: "صفحة الجدولة الكاملة مع منتقي الطلاب والنوافذ الزمنية والمنطقة الزمنية.",
+      },
+      resource: {
+        title: "رفع مورد",
+        description: "أضف ملفات PDF أو صوت أو فيديو أو روابط إلى المكتبة.",
+      },
+      student: {
+        title: "إضافة طالب",
+        description: "أنشئ حساب طالب وسجّله في دفعة.",
+      },
+    },
+  },
+  wizard: {
+    back: "السابق",
+    next: "التالي",
+    finish: "إنهاء",
+    backToHub: "العودة إلى المعالجات",
+    stepOf: "الخطوة {{current}} من {{total}}",
+    rubric: {
+      title: "إنشاء معيار تقييم",
+      subtitle: "شبكة تقييم لمهام الكتابة أو المحادثة، يُرجَع إليها عند توليد الامتحانات أو اعتمادها.",
+      finish: "إنشاء المعيار",
+      toastSuccess: "تم إنشاء المعيار",
+      toastError: "تعذّر إنشاء المعيار",
+      addCriterion: "إضافة معيار",
+      removeCriterion: "حذف المعيار",
+      unnamedCriterion: "(معيار بلا اسم)",
+      descriptorHint: "الوصف اختياري. يظهر للمصحّحين كإرشاد لكل معيار.",
+      maxLabel: "الحد الأقصى",
+      moduleHint: "تنطبق المعايير على الكتابة والمحادثة فقط. الاستماع والقراءة يُصحَّحان تلقائياً.",
+      step1: {
+        title: "الأساسيات",
+        description: "امنح المعيار اسماً وحدّد المهارة التي يطبّق عليها.",
+      },
+      step2: {
+        title: "المعايير",
+        description: "أضف المعايير التي سيقوم المصحّحون بتقييمها. لكل معيار حد أقصى (مثل 9 لامتحان IELTS).",
+      },
+      step3: {
+        title: "الأوصاف",
+        description: "اختياري: صف ما يقيسه كل معيار. يراها المصحّحون كتلميحات.",
+      },
+      step4: {
+        title: "المراجعة",
+        description: "راجع وأنشئ.",
+      },
+      labels: {
+        name: "اسم المعيار",
+        module: "المهارة",
+        description: "الوصف",
+        criterionName: "اسم المعيار الفرعي",
+        maxScore: "الحد الأقصى",
+      },
+      placeholders: {
+        name: "مثال: IELTS مهمة كتابة 2",
+        description: "وصف قصير يظهر للمصحّحين.",
+        criterionName: "مثال: الاستجابة للمهمة",
+        descriptor: "ماذا يجب على المصحّح أن يتحقق منه لهذا المعيار.",
+      },
+      modules: {
+        writing: "الكتابة",
+        speaking: "المحادثة",
+      },
+      errors: {
+        nameRequired: "يرجى إدخال اسم للمعيار.",
+        moduleRestricted: "المعايير تنطبق على الكتابة أو المحادثة فقط.",
+        criterionRequired: "أضف معياراً واحداً على الأقل.",
+        criterionName: "كل معيار يحتاج إلى اسم.",
+        criterionScore: "الحد الأقصى يجب أن يكون بين 1 و 100.",
+      },
+    },
+    structure: {
+      title: "تعريف هيكل امتحان",
+      subtitle: "قالب يحدّد الأقسام والمهام التي يجب أن يحتويها كل امتحان من هذا النوع.",
+      finish: "إنشاء الهيكل",
+      toastSuccess: "تم إنشاء هيكل الامتحان",
+      toastError: "تعذّر إنشاء هيكل الامتحان",
+      industryHint: "اختياري: مثل \"الإنجليزية التجارية\"، \"الرعاية الصحية\".",
+      writingSkipped: "الكتابة غير مُحدَّدة ضمن الوحدات — تم تخطّي هذه الخطوة.",
+      wordsSuffix: "كلمة",
+      addTask: "إضافة مهمة",
+      removeTask: "حذف المهمة",
+      step1: {
+        title: "الأساسيات",
+        description: "سمِّ الهيكل وحدّد نوع الامتحان.",
+      },
+      step2: {
+        title: "الوحدات",
+        description: "اختر الوحدات التي يغطّيها هذا الهيكل. سيراها الطلاب كأقسام.",
+      },
+      step3: {
+        title: "مهام الكتابة",
+        description: "للكتابة، حدّد الحد الأدنى لعدد الكلمات لكل مهمة.",
+      },
+      step4: {
+        title: "المراجعة",
+        description: "راجع وأنشئ.",
+      },
+      labels: {
+        name: "اسم الهيكل",
+        industry: "المجال / السياق",
+        examType: "نوع الامتحان",
+        modules: "الوحدات",
+        taskLabel: "اسم المهمة",
+        minWords: "أدنى كلمات",
+      },
+      placeholders: {
+        name: "مثال: IELTS أكاديمي كتابة",
+        industry: "مثال: الإنجليزية التجارية",
+      },
+      examTypes: {
+        academic: "أكاديمي",
+        general: "عام",
+      },
+      modules: {
+        listening: {
+          title: "الاستماع",
+          description: "أسئلة مبنيّة على الصوت (تصحيح تلقائي).",
+        },
+        reading: {
+          title: "القراءة",
+          description: "أسئلة مبنيّة على مقاطع (تصحيح تلقائي).",
+        },
+        writing: {
+          title: "الكتابة",
+          description: "مهام مقاليّة تُصحَّح باستخدام معيار تقييم.",
+        },
+        speaking: {
+          title: "المحادثة",
+          description: "مهام شفهيّة تُصحَّح باستخدام معيار تقييم.",
+        },
+      },
+      errors: {
+        nameRequired: "يرجى إدخال اسم للهيكل.",
+        moduleRequired: "اختر وحدة واحدة على الأقل.",
+        writingTaskRequired: "الكتابة تحتاج إلى مهمة واحدة على الأقل.",
+        writingTaskLabel: "كل مهمة كتابة تحتاج إلى اسم.",
+        writingTaskWords: "الحد الأدنى للكلمات يجب أن يكون 1 على الأقل.",
+      },
+    },
+    course: {
+      title: "إنشاء مساق",
+      subtitle: "هيكل مساق خفيف. يمكنك إضافة الفصول والمواد وتسجيل الطلاب بعد الإنشاء.",
+      finish: "إنشاء المساق",
+      toastSuccess: "تم إنشاء المساق",
+      toastError: "تعذّر إنشاء المساق",
+      codeHint: "اتركه فارغاً لتوليده تلقائياً من العنوان.",
+      difficultyHint: "ما مدى تحدّي هذا المساق إجمالاً؟ يُستخدم للبحث والتصفية.",
+      cefrHint: "إن كان المساق يستهدف مستوى CEFR محدداً، اختره هنا.",
+      step1: {
+        title: "الأساسيات",
+        description: "امنح المساق اسماً ووصفاً قصيراً.",
+      },
+      step2: {
+        title: "المستوى والسعة",
+        description: "حدّد الصعوبة ومستوى CEFR المستهدف والحد الأقصى لعدد الطلاب.",
+      },
+      step3: {
+        title: "المراجعة",
+        description: "راجع وأنشئ.",
+      },
+      labels: {
+        title: "عنوان المساق",
+        code: "رمز المساق",
+        description: "الوصف",
+        difficulty: "الصعوبة",
+        cefrLevel: "مستوى CEFR",
+        capacity: "السعة القصوى",
+      },
+      placeholders: {
+        title: "مثال: إنجليزية تأسيسية المستوى 1",
+        code: "سيتم توليده تلقائياً إذا تُرك فارغاً",
+        description: "لمن هذا المساق؟ ماذا سيتعلّمون؟",
+        difficulty: "اختر مستوى صعوبة",
+        cefr: "اختر مستوى CEFR",
+      },
+      difficulty: {
+        beginner: "مبتدئ",
+        intermediate: "متوسط",
+        advanced: "متقدّم",
+      },
+      errors: {
+        titleRequired: "يرجى إدخال عنوان المساق.",
+        capacityRequired: "السعة القصوى يجب أن تكون 1 على الأقل.",
+      },
+    },
+  },
+  coursePlan: {
+    listTitle: "خطط المقررات",
+    listSubtitle:
+      "خطط مناهج يُنشئها الذكاء الاصطناعي: الأهداف، ونتائج التعلّم لكل مهارة، ونطاق القواعد، وخطة التسليم أسبوعياً، مع توليد المواد التعليمية لكل أسبوع عند الطلب.",
+    generateNew: "توليد خطة جديدة",
+    searchPlaceholder: "ابحث عن خطة بالاسم…",
+    loadFailed: "تعذّر تحميل الخطط.",
+    deleted: "تم حذف الخطة.",
+    deleteFailed: "تعذّر حذف الخطة.",
+    delete: "حذف",
+    confirmDelete: "حذف الخطة \"{{name}}\"؟ سيؤدي ذلك إلى إزالة جميع الأسابيع والمواد.",
+    emptyTitle: "لا توجد خطط بعد",
+    emptySubtitle: "استخدم معالج الذكاء الاصطناعي لتوليد أول خطة — يستغرق الأمر نحو دقيقة.",
+    open: "فتح",
+    backToList: "العودة إلى الخطط",
+    noDescription: "لا يوجد وصف.",
+    weeksCount_one: "{{count}} أسبوع",
+    weeksCount_other: "{{count}} أسابيع",
+    materialsCount_one: "{{count}} مادة",
+    materialsCount_other: "{{count}} مواد",
+    hoursPerWeek: "{{count}} ساعة/أسبوع",
+    weekN: "الأسبوع {{n}}",
+    generateMaterials: "توليد مواد الأسبوع (ذكاء اصطناعي)",
+    regenerateMaterials: "إعادة توليد مواد الأسبوع",
+    generating: "جاري التوليد…",
+    generateHint:
+      "سيُنتج الذكاء الاصطناعي نصّ قراءة وسيناريو استماع ومحفّزات محادثة وسؤال كتابة ودرس قواعد وقائمة مفردات لهذا الأسبوع.",
+    weekMaterialsGenerated: "تم توليد مواد الأسبوع.",
+    weekMaterialsFailed: "تعذّر توليد مواد الأسبوع.",
+    generateSuccess: "تم توليد خطة المقرر.",
+    generateFailed: "تعذّر توليد خطة المقرر.",
+    deliveryHint: "افتح أي أسبوع لعرض النتائج المخطَّطة وتوليد المواد الجاهزة للاستخدام.",
+    status: {
+      draft: "مسودة",
+      generated: "مُولّدة",
+      approved: "معتمدة",
+      archived: "مؤرشفة",
+    },
+    sections: {
+      objectives: "أهداف المقرر",
+      outcomes: "نتائج التعلّم حسب المهارة",
+      grammar: "نطاق القواعد",
+      assessment: "التقييم",
+      resources: "المصادر",
+      delivery: "خطة التسليم الأسبوعية",
+    },
+    skill: {
+      reading: "القراءة",
+      writing: "الكتابة",
+      listening: "الاستماع",
+      speaking: "المحادثة",
+      grammar: "القواعد",
+      vocabulary: "المفردات",
+      integrated: "متكامل",
+    },
+    materialType: {
+      reading_text: "نص قراءة",
+      listening_script: "نص استماع",
+      speaking_prompt: "محفّز محادثة",
+      writing_prompt: "مهمّة كتابة",
+      grammar_lesson: "درس قواعد",
+      vocabulary_list: "قائمة مفردات",
+      practice: "تمرين",
+      other: "مادة",
+    },
+    table: {
+      skill: "المهارة",
+      outcomes: "النتائج",
+      remarks: "ملاحظات",
+    },
+    wizard: {
+      title: "توليد خطة مقرر",
+      subtitle:
+        "اوصف المقرر مرّة واحدة، ويكتب الذكاء الاصطناعي الخطة كاملة — الأهداف والنتائج والقواعد والخطة الأسبوعية — ويمكنك توليد مواد الأسبوع الأول بضغطة واحدة.",
+      finish: "توليد الخطة",
+      reviewHint: "اضغط على \"توليد الخطة\" لبدء الذكاء الاصطناعي. يستغرق عادةً 30–60 ثانية، وستنتقل إلى صفحة الخطة عند الانتهاء.",
+      steps: {
+        basics: "الأساسيات",
+        basicsDesc: "سمِّ المقرر وحدّد المستوى والمدة وعدد الساعات الأسبوعية.",
+        coverage: "التغطية",
+        coverageDesc: "أخبر الذكاء الاصطناعي بتوزيع الساعات على المهارات ومن هم المتعلّمون.",
+        scope: "النطاق",
+        scopeDesc: "اختياري: تركيز القواعد، والمصادر، وملاحظات حرّة.",
+        review: "المراجعة",
+        reviewDesc: "راجع البيانات قبل بدء التوليد.",
+      },
+      fields: {
+        title: "عنوان المقرر",
+        cefr: "مستوى CEFR",
+        cefrPlaceholder: "اختر مستوى",
+        totalWeeks: "إجمالي الأسابيع",
+        contactHours: "عدد الساعات أسبوعياً",
+        skillsDivision: "توزيع المهارات",
+        skillsDivisionHint:
+          "صيغة حرّة — مثال: \"10 س/أسبوع قراءة وكتابة + 8 س/أسبوع استماع ومحادثة\". اتركه فارغاً ليقرّر الذكاء الاصطناعي.",
+        learnerProfile: "ملف المتعلّمين",
+        learnerProfilePlaceholder: "من هم المتعلّمون؟ الفئة العمرية، اللغة الأم، الخلفية الدراسية، الأهداف…",
+        grammarFocus: "تركيز القواعد (Enter للإضافة)",
+        grammarFocusPlaceholder: "مثال: المضارع البسيط",
+        resources: "المصادر (Enter للإضافة)",
+        resourcesPlaceholder: "مثال: Pathways 1 (National Geographic)",
+        notes: "ملاحظات إضافية",
+        notesPlaceholder: "أي شيء آخر يحتاج الذكاء الاصطناعي معرفته.",
+      },
+      errors: {
+        titleRequired: "يرجى إدخال عنوان المقرر.",
+        cefrRequired: "يرجى اختيار مستوى CEFR.",
+        weeksRange: "عدد الأسابيع يجب أن يكون 1 على الأقل.",
+      },
+    },
+  },
+  aiAdmin: {
+    title: "وكلاء الذكاء الاصطناعي والأدوات",
+    subtitle:
+      "هيّئ الوكلاء المبنيين على LangGraph الذين يشغّلون تخطيط المقررات وتوليد الاختبارات والتمارين والمدرّس داخل LMS والتصحيح. الإعدادات الافتراضية جاهزة للاستخدام مباشرة.",
+    tabs: {
+      agents: "الوكلاء",
+      tools: "الأدوات",
+      prompts: "التعليمات",
+    },
+  },
+  agents: {
+    list: {
+      title: "الوكلاء",
+      subtitle: "مهيّأون مسبقاً لكل ركيزة في المنصة — يمكن تعديل الإعدادات الافتراضية أدناه.",
+      search: "ابحث عن وكيل…",
+      empty: "لا توجد وكلاء مطابقون لبحثك.",
+    },
+    detail: {
+      configure: "ضبط الإعدادات",
+      empty: "اختر وكيلاً لعرض إعداداته.",
+      graph: "نوع الرسم البياني",
+      model: "النموذج",
+      temperature: "درجة الإبداع",
+      tokens: "أقصى عدد رموز",
+      format: "صيغة المخرجات",
+      fallback: "الاحتياطي",
+      revisions: "أقصى عدد مراجعات",
+      promptKey: "مفتاح القالب",
+      toolsTitle: "الأدوات المفعّلة",
+      noTools: "لا توجد أدوات مفعّلة لهذا الوكيل.",
+      systemPrompt: "تعليمات النظام",
+      noPrompt: "(فارغ)",
+    },
+    config: {
+      title: "ضبط الإعدادات",
+      saved: "تم حفظ إعدادات الوكيل",
+      name: "اسم العرض",
+      promptKey: "مفتاح القالب (مع نسخ)",
+      description: "الوصف",
+      systemPrompt: "تعليمات النظام",
+      systemPromptHint:
+        "إذا تم تعيين مفتاح قالب أعلاه، فإن النسخة النشطة من ذلك القالب تستبدل هذا الحقل وقت التشغيل.",
+      model: "النموذج",
+      fallbackModel: "النموذج الاحتياطي",
+      responseFormat: "صيغة المخرجات",
+      text: "نص",
+      temperature: "درجة الإبداع",
+      maxTokens: "أقصى عدد رموز",
+      maxRevisions: "أقصى عدد مراجعات",
+      graphType: "بنية الرسم البياني",
+      qualityChecks: "فحوصات الجودة (مفاتيح أدوات مفصولة بفواصل)",
+      tools: "الأدوات المفعّلة",
+      mutates: "كتابة",
+      active: "الوكيل مفعّل",
+    },
+    test: {
+      title: "محرّك الاختبار",
+      subtitle:
+        "أرسل طلباً صغيراً وافحص مخرجات الوكيل واستدعاءات الأدوات وتنبيهات الجودة.",
+      variables: "المتغيّرات (JSON)",
+      payload: "الطلب (نص أو JSON)",
+      payloadPlaceholder:
+        "ماذا يجب أن يفعل الوكيل؟ مثال: «أنشئ 5 أسئلة اختيار من متعدد للقراءة لمستوى B1.»",
+      run: "تشغيل الوكيل",
+      running: "جارٍ التشغيل…",
+      ok: "تم تنفيذ الوكيل بنجاح",
+      output: "المخرجات",
+      toolTrace: "سجلّ استدعاءات الأدوات",
+      iterations: "التكرارات",
+      revisions: "المراجعات",
+      toolCalls: "استدعاءات الأدوات",
+      retrievalHits: "نتائج الاسترجاع",
+      qualityIssues: "تنبيهات الجودة",
+      badVarsJson: "يجب أن تكون المتغيّرات بصيغة JSON صحيحة.",
+    },
+    graph: {
+      simple: "بسيط",
+      planReviewRevise: "تخطيط • مراجعة • تنقيح",
+      rag: "استرجاع وتوليد",
+      react: "ReAct (استدعاء أدوات)",
+    },
+  },
+  tools: {
+    title: "أدوات الوكلاء",
+    subtitle:
+      "القدرات التي يمكن للوكلاء استدعاؤها. أوقف أداة لإخراجها من جميع الوكلاء دون تعديل كل واحد منهم.",
+    search: "ابحث عن أداة…",
+    empty: "لا توجد أدوات مطابقة لبحثك.",
+    writes: "كتابة",
+    toggle: {
+      enabled: "تم تفعيل الأداة",
+      disabled: "تم تعطيل الأداة",
+    },
+    col: {
+      key: "المفتاح",
+      name: "الاسم",
+      category: "الفئة",
+      description: "الوصف",
+      params: "المعاملات",
+      active: "نشط",
+    },
+  },
+};
+
+export default ar;

src/i18n/locales/en.ts

@@ -0,0 +1,934 @@
+/** English translations. Keep keys nested by feature area.
+ *
+ * We deliberately annotate the literal with `Translations` (not `as const`)
+ * so sibling locale files can widen their string values without fighting
+ * literal-string type mismatches.
+ *
+ * Adding a new key: add it here FIRST (English is the source of truth), then
+ * mirror it in `ar.ts`. The `Translations` interface is intentionally
+ * permissive (`Record<string, string>` per group) so we don't have to update
+ * a giant type every time we add a string.
+ */
+export interface Translations {
+  common: Record<string, string>;
+  auth: Record<string, string>;
+  nav: Record<string, string>;
+  sidebarGroup: Record<string, string>;
+  breadcrumb: Record<string, string>;
+  userMenu: Record<string, string>;
+  chrome: Record<string, string>;
+  notifications: Record<string, string>;
+  theme: Record<string, string>;
+  language: Record<string, string>;
+  roles: Record<string, string>;
+  dashboard: Record<string, string>;
+  studentDash: Record<string, string>;
+  teacherDash: Record<string, string>;
+  adminDash: Record<string, string>;
+  examPopup: Record<string, string>;
+  errors: Record<string, string>;
+  ai: Record<string, string>;
+  privacy: Record<string, string>;
+  feedback: Record<string, string>;
+  // quickSetup mixes flat strings (page chrome) and nested blocks
+  // ("admin.step1.title", "teacher.quick.discussion.title") so its values
+  // can be either strings or nested records. We intentionally use a loose
+  // shape here rather than maintain a hand-authored deep type.
+  quickSetup: Record<string, unknown>;
+  /** Smart Wizard Hub + per-scenario step-by-step wizards. */
+  wizardHub: Record<string, unknown>;
+  wizard: Record<string, unknown>;
+  /** AI course-plan generator — list, detail, wizard. */
+  coursePlan: Record<string, unknown>;
+  /** AI Agents & Tools configurator (the /admin/ai/prompts page). */
+  aiAdmin: Record<string, unknown>;
+  agents: Record<string, unknown>;
+  tools: Record<string, unknown>;
+}
+
+const en: Translations = {
+  common: {
+    cancel: "Cancel",
+    save: "Save",
+    delete: "Delete",
+    edit: "Edit",
+    close: "Close",
+    back: "Back",
+    next: "Next",
+    search: "Search",
+    loading: "Loading…",
+    error: "Error",
+    retry: "Retry",
+    yes: "Yes",
+    no: "No",
+    actions: "Actions",
+    status: "Status",
+    settings: "Settings",
+    signOut: "Sign out",
+    viewAll: "View All",
+    dismiss: "Dismiss",
+    pending: "Pending",
+    active: "Active",
+    inactive: "Inactive",
+    available: "Available",
+    unavailable: "Unavailable",
+    name: "Name",
+    email: "Email",
+    user: "User",
+    home: "Home",
+    saving: "Saving…",
+    disabled: "Disabled",
+  },
+  auth: {
+    signIn: "Sign in",
+    signInTitle: "Sign in to EnCoach",
+    welcomeBack: "Welcome back",
+    signInDescription: "Sign in to your account to continue",
+    email: "Email",
+    emailPlaceholder: "you@example.com",
+    password: "Password",
+    rememberMe: "Remember me",
+    forgotPassword: "Forgot password?",
+    needAccount: "Don't have an account?",
+    signUp: "Sign up",
+    invalidCredentials: "Invalid email or password",
+    missingCredentials: "Please enter email and password",
+    loginFailedTitle: "Login Failed",
+    errorTitle: "Error",
+  },
+  nav: {
+    smartWizard: "Smart Wizard",
+    quickSetup: "Smart Setup",
+    coursePlans: "Course Plans (AI)",
+    adminDashboard: "Admin Dashboard",
+    platformDashboard: "Platform Dashboard",
+    dashboard: "Dashboard",
+    courses: "Courses",
+    myCourses: "My Courses",
+    students: "Students",
+    teachers: "Teachers",
+    batches: "Batches",
+    timetable: "Timetable",
+    reports: "Reports",
+    assignments: "Assignments",
+    examsList: "Exams List",
+    examStructures: "Exam Structures",
+    rubrics: "Rubrics",
+    generation: "Generation",
+    reviewQueue: "Review Queue",
+    aiPrompts: "AI Agents & Tools",
+    aiFeedback: "AI Feedback",
+    approvalWorkflows: "Approval Workflows",
+    taxonomy: "Taxonomy",
+    resources: "Resources",
+    resourceLibrary: "Resource Library",
+    academicYears: "Academic Years",
+    departments: "Departments",
+    admissions: "Admissions",
+    admissionRegister: "Admission Register",
+    examSessions: "Exam Sessions",
+    marksheets: "Marksheets",
+    studentLeave: "Student Leave",
+    fees: "Fees & Payments",
+    lessons: "Lessons",
+    gradebook: "Gradebook",
+    studentProgress: "Student Progress",
+    library: "Library",
+    activities: "Activities",
+    facilities: "Facilities",
+    users: "Users",
+    entities: "Entities",
+    classrooms: "Classrooms",
+    userRoles: "User Roles",
+    rolesPermissions: "Roles & Permissions",
+    authorityMatrix: "Authority Matrix",
+    studentPerformance: "Student Performance",
+    statsCorporate: "Stats Corporate",
+    record: "Record",
+    vocabulary: "Vocabulary",
+    grammar: "Grammar",
+    faqManager: "FAQ Manager",
+    notificationRules: "Notification Rules",
+    approvalConfig: "Approval Config",
+    paymentRecord: "Payment Record",
+    tickets: "Tickets",
+    settings: "Settings",
+    profile: "Profile",
+    privacy: "Privacy Center",
+    subjectRegistration: "Subject Registration",
+    mySubjects: "My Subjects",
+    grades: "Grades",
+    attendance: "Attendance",
+    myJourney: "My Journey",
+    discussions: "Discussions",
+    messages: "Messages",
+    announcements: "Announcements",
+  },
+  sidebarGroup: {
+    overview: "Overview",
+    lms: "LMS",
+    adaptiveLearning: "Adaptive Learning",
+    institutional: "Institutional",
+    academic: "Academic",
+    management: "Management",
+    reports: "Reports",
+    configuration: "Configuration",
+    training: "Training",
+    support: "Support",
+    learning: "Learning",
+    progress: "Progress",
+    communication: "Communication",
+    account: "Account",
+    teaching: "Teaching",
+  },
+  breadcrumb: {
+    home: "Home",
+    admin: "Admin",
+    dashboard: "Dashboard",
+    platform: "Platform",
+    exam: "Exam",
+    review: "Review",
+    ai: "AI",
+    feedback: "Feedback",
+  },
+  userMenu: {
+    profile: "Profile",
+    settings: "Settings",
+    logout: "Logout",
+    userFallback: "User",
+  },
+  chrome: {
+    needHelp: "Need help?",
+    ticketsTooltip: "Support tickets",
+    aiSearchPlaceholder: "Ask anything... e.g. 'Show students with low attendance'",
+    aiSearching: "AI is searching…",
+    aiRelatedQueries: "Related queries",
+    aiNoResults: "No results for \"{{q}}\". Try a different question or keyword.",
+    aiSearchFailedTitle: "Search failed",
+    aiSearchFailedDesc: "Could not complete AI search.",
+    portalSuffix: "Portal",
+    adminAlt: "EnCoach",
+    adminAltLong: "EnCoach — Unlock your potential with AI powered platform",
+    toggleSidebar: "Toggle sidebar",
+  },
+  notifications: {
+    title: "Notifications",
+    empty: "You're all caught up.",
+    ariaLabel: "Notifications",
+  },
+  theme: {
+    title: "Theme",
+    light: "Light",
+    dark: "Dark",
+    system: "System",
+    toggleLabel: "Toggle theme",
+  },
+  language: {
+    change: "Change language",
+    label: "Language",
+  },
+  roles: {
+    student: "student",
+    teacher: "teacher",
+    admin: "admin",
+    developer: "developer",
+    corporate: "corporate",
+    mastercorporate: "master corporate",
+    agent: "agent",
+  },
+  dashboard: {
+    greetingFallback: "Student",
+  },
+  studentDash: {
+    welcome: "Welcome back, {{name}}!",
+    subtitle: "Here's an overview of your learning progress.",
+    enrolledCourses: "Enrolled Courses",
+    overallProgress: "Overall Progress",
+    averageGrade: "Average Grade",
+    totalChapters: "Total Chapters",
+    myCourses: "My Courses",
+    noEnrolledCourses: "No enrolled courses yet.",
+    chaptersMaterials: "{{chapters}} chapters · {{materials}} materials",
+    quickActions: "Quick Actions",
+    enrollToStart: "Enroll in a course to get started.",
+    continue: "Continue",
+    start: "Start",
+    chaptersDone: "{{done}}/{{total}} chapters done",
+    recentGrades: "Recent Grades",
+    noGradesYet: "No grades yet.",
+  },
+  teacherDash: {
+    title: "Teacher Dashboard",
+    subtitle: "Overview of your teaching activities.",
+    activeCourses: "Active Courses",
+    totalStudents: "Total Students",
+    pendingGrading: "Pending Grading",
+    avgPassRate: "Avg. Pass Rate",
+    myCourses: "My Courses",
+    colCourse: "Course",
+    colStudents: "Students",
+    colStatus: "Status",
+    recentActivity: "Recent Activity",
+    submitted: "Submitted {{when}}",
+    pending: "Pending",
+  },
+  adminDash: {
+    title: "Admin Dashboard",
+    subtitle: "Platform overview and key metrics.",
+    addStudent: "Add Student",
+    newCourse: "New Course",
+    totalStudents: "Total Students",
+    activeCourses: "Active Courses",
+    teachers: "Teachers",
+    activeBatches: "Active Batches",
+    openTickets: "Open Tickets",
+    revenue: "Revenue",
+    departments: "Departments",
+    classrooms: "Classrooms",
+    subjects: "Subjects",
+    resources: "Resources",
+    coursesOverview: "Courses Overview",
+    batchCapacity: "Batch Capacity",
+    noCourseData: "No course data available.",
+    noBatchData: "No batch data available.",
+    quickSummary: "Quick Summary",
+    colModule: "Module",
+    colCount: "Count",
+    colStatus: "Status",
+    exams: "Exams",
+    examSessionsCount: "{{n}} sessions",
+    assignments: "Assignments",
+    acrossCourses: "across courses",
+    supportTickets: "Support Tickets",
+    ticketsOpenCount: "{{n}} open",
+    payments: "Payments",
+    revenueTotal: "{{amount}} total",
+    chartCapacity: "Capacity",
+    chartEnrolled: "Enrolled",
+  },
+  examPopup: {
+    title: "Upcoming Exams ({{n}})",
+    activeNow: "Active Now",
+    from: "From:",
+    to: "To:",
+    startExam: "Start Exam",
+    notAvailableYet: "Not Available Yet",
+    willBeAvailable: "Exam will be available once it becomes active",
+    notActive: "Exam is not currently active",
+  },
+  errors: {
+    somethingWrong: "Something went wrong",
+    unexpectedDescription: "An unexpected error occurred. Please try refreshing the page.",
+    errorDetails: "Error details",
+    refreshPage: "Refresh Page",
+    notFoundCode: "404",
+    notFoundMessage: "Oops! Page not found",
+    returnHome: "Return to Home",
+  },
+  ai: {
+    assistantLabel: "AI Assistant",
+    assistantTitle: "EnCoach AI Assistant",
+    placeholder: "Ask anything...",
+    send: "Send",
+    thinking: "Thinking…",
+    emptyLine1: "Ask me anything about the platform,",
+    emptyLine2: "or click a quick action above.",
+    fallbackReply: "Sorry, I could not reach the assistant. Please try again in a moment.",
+    replyErrorTitle: "Could not get a reply",
+    replyErrorDesc: "Something went wrong. Try again.",
+    quickHealth: "Platform health summary",
+    quickDropouts: "Show dropout risks",
+    quickCompare: "Compare course performance",
+    quickBatch: "Suggest batch improvements",
+    tipLabel: "AI Tip",
+    insightLabel: "AI Insight",
+    recommendationLabel: "AI Recommendation",
+    categoryTipLabel: "AI {{category}} Tip",
+    loadingTip: "Loading AI tip…",
+    loadingInsights: "Loading insights…",
+    loadingAlerts: "Loading alerts…",
+    couldNotLoadTip: "Could not load tip.",
+    couldNotLoadInsights: "Could not load insights.",
+    couldNotLoadAlerts: "Could not load alerts.",
+    noTipAvailable: "No tip available.",
+    noTipForContext: "No tip for this context yet.",
+    noInsightsAvailable: "No insights available for this view.",
+    noAlertsRightNow: "No AI alerts right now.",
+    alertsUnavailable: "Alerts unavailable",
+    insightsUnavailable: "Insights unavailable",
+    platformInsightsTitle: "AI Platform Insights",
+  },
+  privacy: {
+    title: "Privacy Center",
+    description:
+      "Manage your personal data held by EnCoach under GDPR and equivalent regulations.",
+    exportTitle: "Download your data",
+    exportDescription:
+      "We'll package your profile, entity memberships, exam attempts, answers, AI feedback, and tickets into a single JSON file.",
+    exportButton: "Download my data",
+    exportPreparing: "Preparing export…",
+    exportSuccess: "Data export downloaded",
+    deleteTitle: "Delete my account",
+    deleteDescription:
+      "This anonymises your profile and removes personal fields from our records. Exam attempts are retained (without identifying information) for statistical integrity. This action cannot be undone.",
+    deleteButton: "Erase my account",
+    deleteErasing: "Erasing…",
+    confirmTitle: "Erase your account?",
+    confirmDescription:
+      "We'll anonymise your personal data and deactivate your login. Aggregate analytics will remain but will no longer be linked to you.",
+    confirmTypeDelete: "Type DELETE to confirm",
+    confirmErased: "Your account has been erased. Signing out…",
+  },
+  feedback: {
+    thumbsUp: "Thumbs up",
+    thumbsDown: "Thumbs down",
+    whatWentWrong: "What went wrong?",
+    commentPlaceholder: "e.g. Wrong answer, confusing wording, off-topic…",
+    commentRequired: "Please tell us what was wrong.",
+    submit: "Submit feedback",
+  },
+  // Smart-setup wizard. Nested so i18next's default "." key separator
+  // resolves e.g. t("quickSetup.admin.step1.title").
+  quickSetup: {
+    adminTitle: "Smart Setup",
+    adminSubtitle:
+      "Everything you need to launch an exam-ready platform, in the recommended order. Tick each step off as you go — the wizard auto-detects progress.",
+    teacherTitle: "Smart Setup",
+    teacherSubtitle:
+      "Launch a new course end-to-end, then jump to common day-to-day tasks.",
+    progressLabel: "Progress",
+    recommendedFlow: "Recommended flow",
+    otherQuickCreates: "Other quick creates",
+    ready: "Ready",
+    start: "Start",
+    review: "Review",
+    open: "Open",
+    helpAria: "Show help",
+    admin: {
+      step1: {
+        title: "Create a rubric",
+        description:
+          "Define the grading criteria for Writing and Speaking tasks. Rubrics are referenced later when generating or approving exams.",
+        help: "A rubric is a scoring grid (bands × criteria). You can start from a template or compose one from predefined criteria.",
+      },
+      step2: {
+        title: "Define an exam structure",
+        description:
+          "Blueprint the sections, tasks, and parts that every generated or custom exam of this type must contain.",
+        help: "Structures enforce consistency. E.g. an IELTS Writing structure has Task 1 (150w) + Task 2 (250w); generation will refuse to submit if either is missing.",
+      },
+      step3: {
+        title: "Generate or create an exam",
+        description:
+          "Use AI generation (fastest) or hand-build a custom exam. Save as draft or submit for approval.",
+        help: "Generation picks a structure + rubric and produces questions. The custom builder gives you full control for pilot/test exams.",
+      },
+      step4: {
+        title: "Review & approve",
+        description:
+          "Approvers sign off on exams before students can see them. Configure the workflow once, then route submissions automatically.",
+        help: "The approval queue lists every exam waiting for sign-off. Reject sends it back to the author; approve publishes it.",
+      },
+      step5: {
+        title: "Assign to students",
+        description:
+          "Schedule the published exam, pick a cohort, and send it out. Students see it immediately in their portal.",
+        help: "Assignments can target individual students, batches, or classrooms. Timezone-aware windows are supported.",
+      },
+      quick: {
+        course: { title: "New course", description: "Stand up a course shell for teachers to fill with chapters." },
+        resource: { title: "Upload resource", description: "Add PDFs, audio, video, or links to the shared library." },
+        student: { title: "Add student", description: "Create a student account and assign them to a batch." },
+        teacher: { title: "Add teacher", description: "Invite a teacher and grant teaching permissions." },
+        classroom: { title: "New classroom", description: "Group students for scheduling and attendance." },
+        examSession: { title: "Schedule exam session", description: "Create a proctored sitting for an institutional exam." },
+        customExam: { title: "Custom exam", description: "Hand-build an exam from scratch with full control." },
+        ticket: { title: "Open ticket", description: "Raise a support ticket on behalf of a user." },
+      },
+    },
+    teacher: {
+      step1: {
+        title: "Create a course",
+        description: "Give your course a name, pick a subject, and set its level. You can edit chapters after creation.",
+        help: "Courses are the container for chapters, materials, and assignments.",
+      },
+      step2: {
+        title: "Add chapters & content",
+        description: "Open your course and add chapters with lessons, videos, quizzes, and practice tasks.",
+        help: "Chapters organise learning objectives. Use the AI workbench to auto-draft content.",
+      },
+      step3: {
+        title: "Upload resources",
+        description: "Share supporting PDFs, audio, or video with your students via the library.",
+        help: "Large files are fine — the server accepts up to 128 MB per upload.",
+      },
+      step4: {
+        title: "Create an assignment",
+        description: "Turn a published exam or task into an assignment with a due date and target cohort.",
+        help: "Assignments auto-surface in each student's dashboard and on their timetable.",
+      },
+      step5: {
+        title: "Track student progress",
+        description: "Monitor submissions, attendance, and adaptive learning insights for your class.",
+        help: "The adaptive engine flags at-risk students so you can intervene early.",
+      },
+      quick: {
+        discussion: { title: "New discussion", description: "Start a topic thread for your class." },
+        announcement: { title: "New announcement", description: "Broadcast a message to all your students." },
+        attendance: { title: "Mark attendance", description: "Record today's attendance for a session." },
+      },
+    },
+  },
+  wizardHub: {
+    title: "Smart Wizard",
+    subtitle:
+      "Pick any scenario and the wizard will walk you through it step by step. No need to hunt through settings — every Next button moves you closer to done.",
+    recommendedOrder: "Recommended order",
+    order: {
+      rubric: "Create rubrics (Writing / Speaking)",
+      structure: "Define exam structures (sections, tasks, durations)",
+      generate: "Generate or create exams",
+      approve: "Review & approve pending exams",
+      assign: "Assign exams to students",
+    },
+    guided: "Guided wizards",
+    advanced: "Full pages (advanced)",
+    advancedBadge: "Advanced",
+    aiBadge: "AI",
+    startWizard: "Start wizard",
+    openPage: "Open page",
+    cards: {
+      rubric: {
+        title: "Create a rubric",
+        description: "Name → skill → criteria → descriptors → review. Writing and Speaking only.",
+      },
+      examStructure: {
+        title: "Define an exam structure",
+        description: "Name → modules → writing tasks → review. Reusable blueprint for generation.",
+      },
+      course: {
+        title: "Create a course",
+        description: "Title → level & capacity → review. Chapters can be added from the course page.",
+      },
+      coursePlan: {
+        title: "Generate a course plan (AI)",
+        description: "Describe the course → AI writes objectives, per-skill outcomes, grammar scope and a week-by-week delivery plan, then produces real teaching materials per week.",
+      },
+      generation: {
+        title: "Generate an exam",
+        description: "Full AI generation page with rubric/structure pickers and per-module controls.",
+      },
+      approval: {
+        title: "Approval workflows",
+        description: "Configure who reviews which exams and see pending requests.",
+      },
+      assign: {
+        title: "Assign to students",
+        description: "Full scheduling page with student picker, windows, and timezone support.",
+      },
+      resource: {
+        title: "Upload resource",
+        description: "Add PDFs, audio, video, or links to the shared library.",
+      },
+      student: {
+        title: "Add student",
+        description: "Create a student account and enroll them in a batch.",
+      },
+    },
+  },
+  wizard: {
+    back: "Back",
+    next: "Next",
+    finish: "Finish",
+    backToHub: "Back to wizards",
+    stepOf: "Step {{current}} of {{total}}",
+    rubric: {
+      title: "Create a rubric",
+      subtitle: "Grading grid for Writing or Speaking tasks. Referenced later when generating or approving exams.",
+      finish: "Create rubric",
+      toastSuccess: "Rubric created",
+      toastError: "Could not create rubric",
+      addCriterion: "Add criterion",
+      removeCriterion: "Remove criterion",
+      unnamedCriterion: "(unnamed criterion)",
+      descriptorHint: "Descriptors are optional. They appear to graders as guidance for each criterion.",
+      maxLabel: "Max",
+      moduleHint:
+        "Rubrics only apply to Writing and Speaking. Listening and Reading are auto-graded and don't need one.",
+      step1: {
+        title: "Basics",
+        description: "Give the rubric a name and pick the skill it applies to.",
+      },
+      step2: {
+        title: "Criteria",
+        description: "Add the criteria you want graders to score. Each criterion has a max score (e.g. 9 for IELTS).",
+      },
+      step3: {
+        title: "Descriptors",
+        description: "Optional: describe what each criterion measures. Graders see these as hints.",
+      },
+      step4: {
+        title: "Review",
+        description: "Double-check and create.",
+      },
+      labels: {
+        name: "Rubric name",
+        module: "Skill",
+        description: "Description",
+        criterionName: "Criterion name",
+        maxScore: "Max score",
+      },
+      placeholders: {
+        name: "e.g. IELTS Writing Task 2",
+        description: "Short description shown to graders.",
+        criterionName: "e.g. Task Response",
+        descriptor: "What graders should check for this criterion.",
+      },
+      modules: {
+        writing: "Writing",
+        speaking: "Speaking",
+      },
+      errors: {
+        nameRequired: "Please enter a name for this rubric.",
+        moduleRestricted: "Rubrics apply only to Writing or Speaking.",
+        criterionRequired: "Add at least one criterion.",
+        criterionName: "Every criterion needs a name.",
+        criterionScore: "Max score must be between 1 and 100.",
+      },
+    },
+    structure: {
+      title: "Define an exam structure",
+      subtitle: "Blueprint the sections, tasks, and parts every generated or custom exam of this type must contain.",
+      finish: "Create structure",
+      toastSuccess: "Exam structure created",
+      toastError: "Could not create exam structure",
+      industryHint: "Optional: e.g. 'Business English', 'Healthcare'.",
+      writingSkipped: "Writing is not in the selected modules — this step is skipped.",
+      wordsSuffix: "words",
+      addTask: "Add task",
+      removeTask: "Remove task",
+      step1: {
+        title: "Basics",
+        description: "Name the structure and pick its exam type.",
+      },
+      step2: {
+        title: "Modules",
+        description: "Select which modules this structure covers. Students will see these sections.",
+      },
+      step3: {
+        title: "Writing tasks",
+        description: "For writing, define each task's minimum word count.",
+      },
+      step4: {
+        title: "Review",
+        description: "Double-check and create.",
+      },
+      labels: {
+        name: "Structure name",
+        industry: "Industry / context",
+        examType: "Exam type",
+        modules: "Modules",
+        taskLabel: "Task label",
+        minWords: "Min words",
+      },
+      placeholders: {
+        name: "e.g. IELTS Academic Writing",
+        industry: "e.g. Business English",
+      },
+      examTypes: {
+        academic: "Academic",
+        general: "General",
+      },
+      modules: {
+        listening: {
+          title: "Listening",
+          description: "Audio-based questions (auto-graded).",
+        },
+        reading: {
+          title: "Reading",
+          description: "Passage-based questions (auto-graded).",
+        },
+        writing: {
+          title: "Writing",
+          description: "Essay tasks graded with a rubric.",
+        },
+        speaking: {
+          title: "Speaking",
+          description: "Oral tasks graded with a rubric.",
+        },
+      },
+      errors: {
+        nameRequired: "Please enter a name for this structure.",
+        moduleRequired: "Select at least one module.",
+        writingTaskRequired: "Writing needs at least one task.",
+        writingTaskLabel: "Each writing task needs a label.",
+        writingTaskWords: "Minimum words must be at least 1.",
+      },
+    },
+    course: {
+      title: "Create a course",
+      subtitle: "A lightweight course skeleton. You can add chapters, materials and enroll students after creation.",
+      finish: "Create course",
+      toastSuccess: "Course created",
+      toastError: "Could not create course",
+      codeHint: "Leave blank to auto-generate from the title.",
+      difficultyHint: "How challenging is this course overall? Used for search & filtering.",
+      cefrHint: "If this course targets a specific CEFR band, pick it here.",
+      step1: {
+        title: "Basics",
+        description: "Give your course a name and a short description.",
+      },
+      step2: {
+        title: "Level & capacity",
+        description: "Set difficulty, target CEFR level, and how many students can enroll.",
+      },
+      step3: {
+        title: "Review",
+        description: "Double-check and create.",
+      },
+      labels: {
+        title: "Course title",
+        code: "Course code",
+        description: "Description",
+        difficulty: "Difficulty",
+        cefrLevel: "CEFR level",
+        capacity: "Max capacity",
+      },
+      placeholders: {
+        title: "e.g. Foundation English Level 1",
+        code: "Auto-generated if empty",
+        description: "Who is this course for? What will they learn?",
+        difficulty: "Select a difficulty",
+        cefr: "Select a CEFR level",
+      },
+      difficulty: {
+        beginner: "Beginner",
+        intermediate: "Intermediate",
+        advanced: "Advanced",
+      },
+      errors: {
+        titleRequired: "Please enter a course title.",
+        capacityRequired: "Max capacity must be at least 1.",
+      },
+    },
+  },
+  coursePlan: {
+    listTitle: "Course Plans",
+    listSubtitle:
+      "AI-generated curriculum outlines: objectives, per-skill learning outcomes, grammar scope, a week-by-week delivery plan, and on-demand teaching materials for each week.",
+    generateNew: "Generate new plan",
+    searchPlaceholder: "Search plans by name…",
+    loadFailed: "Couldn't load course plans.",
+    deleted: "Plan deleted.",
+    deleteFailed: "Couldn't delete plan.",
+    delete: "Delete",
+    confirmDelete: "Delete plan \"{{name}}\"? This removes all weeks and materials.",
+    emptyTitle: "No course plans yet",
+    emptySubtitle:
+      "Use the AI wizard to generate your first plan — it only takes about a minute.",
+    open: "Open",
+    backToList: "Back to course plans",
+    noDescription: "No description.",
+    weeksCount_one: "{{count}} week",
+    weeksCount_other: "{{count}} weeks",
+    materialsCount_one: "{{count}} material",
+    materialsCount_other: "{{count}} materials",
+    hoursPerWeek: "{{count}} hrs/week",
+    weekN: "Week {{n}}",
+    generateMaterials: "Generate Week materials (AI)",
+    regenerateMaterials: "Regenerate Week materials",
+    generating: "Generating…",
+    generateHint:
+      "AI will produce a reading text, listening script, speaking prompts, writing prompt, grammar mini-lesson and vocabulary for this week.",
+    weekMaterialsGenerated: "Week materials generated.",
+    weekMaterialsFailed: "Couldn't generate week materials.",
+    generateSuccess: "Course plan generated.",
+    generateFailed: "Couldn't generate course plan.",
+    deliveryHint:
+      "Expand any week to view the planned outcomes and generate ready-to-use teaching materials.",
+    status: {
+      draft: "Draft",
+      generated: "Generated",
+      approved: "Approved",
+      archived: "Archived",
+    },
+    sections: {
+      objectives: "Course objectives",
+      outcomes: "Learning outcomes by skill",
+      grammar: "Grammar scope",
+      assessment: "Assessment",
+      resources: "Resources",
+      delivery: "Weekly delivery plan",
+    },
+    skill: {
+      reading: "Reading",
+      writing: "Writing",
+      listening: "Listening",
+      speaking: "Speaking",
+      grammar: "Grammar",
+      vocabulary: "Vocabulary",
+      integrated: "Integrated",
+    },
+    materialType: {
+      reading_text: "Reading text",
+      listening_script: "Listening script",
+      speaking_prompt: "Speaking prompt",
+      writing_prompt: "Writing prompt",
+      grammar_lesson: "Grammar lesson",
+      vocabulary_list: "Vocabulary list",
+      practice: "Practice",
+      other: "Material",
+    },
+    table: {
+      skill: "Skill",
+      outcomes: "Outcomes",
+      remarks: "Remarks",
+    },
+    wizard: {
+      title: "Generate a course plan",
+      subtitle:
+        "Describe the course once. The AI writes the full outline — objectives, outcomes, grammar, weekly plan — and you can generate Week 1 teaching material in one click afterwards.",
+      finish: "Generate plan",
+      reviewHint:
+        "Click Generate plan to start the AI. This usually takes 30–60 seconds; you'll land on the plan page once it's done.",
+      steps: {
+        basics: "Basics",
+        basicsDesc: "Name the course and set level, duration, and weekly hours.",
+        coverage: "Coverage",
+        coverageDesc: "Tell the AI how hours split across skills and who the learners are.",
+        scope: "Scope",
+        scopeDesc: "Optional: grammar focus, resources to reference, free-form notes.",
+        review: "Review",
+        reviewDesc: "Double-check your brief before kicking off the generation.",
+      },
+      fields: {
+        title: "Course title",
+        cefr: "CEFR level",
+        cefrPlaceholder: "Pick a level",
+        totalWeeks: "Total weeks",
+        contactHours: "Contact hours / week",
+        skillsDivision: "Skills division",
+        skillsDivisionHint:
+          "Free-form — e.g. \"10 hrs/wk Reading & Writing + 8 hrs/wk Listening & Speaking\". Leave blank to let the AI decide.",
+        learnerProfile: "Learner profile",
+        learnerProfilePlaceholder:
+          "Who are the learners? Age range, L1, prior study, goals…",
+        grammarFocus: "Grammar focus (press Enter to add)",
+        grammarFocusPlaceholder: "e.g. present simple",
+        resources: "Resources to reference (press Enter to add)",
+        resourcesPlaceholder: "e.g. Pathways 1 (National Geographic)",
+        notes: "Additional notes",
+        notesPlaceholder: "Anything else the AI should know.",
+      },
+      errors: {
+        titleRequired: "Please enter a course title.",
+        cefrRequired: "Please pick a CEFR level.",
+        weeksRange: "Total weeks must be at least 1.",
+      },
+    },
+  },
+  aiAdmin: {
+    title: "AI Agents & Tools",
+    subtitle:
+      "Configure the LangGraph-backed agents that power course planning, exam generation, exercise generation, the LMS tutor, and grading. Defaults are pre-seeded and ready to use.",
+    tabs: {
+      agents: "Agents",
+      tools: "Tools",
+      prompts: "Prompts",
+    },
+  },
+  agents: {
+    list: {
+      title: "Agents",
+      subtitle: "Pre-configured for every platform pillar — edit defaults below.",
+      search: "Search agents…",
+      empty: "No agents match your search.",
+    },
+    detail: {
+      configure: "Configure",
+      empty: "Select an agent to inspect its configuration.",
+      graph: "Graph",
+      model: "Model",
+      temperature: "Temperature",
+      tokens: "Max tokens",
+      format: "Output format",
+      fallback: "Fallback",
+      revisions: "Max revisions",
+      promptKey: "Prompt key",
+      toolsTitle: "Enabled tools",
+      noTools: "This agent has no tools enabled.",
+      systemPrompt: "System prompt",
+      noPrompt: "(empty)",
+    },
+    config: {
+      title: "Configure",
+      saved: "Agent configuration saved",
+      name: "Display name",
+      promptKey: "Prompt key (versioned)",
+      description: "Description",
+      systemPrompt: "System prompt",
+      systemPromptHint:
+        "If a prompt key is set above, the active version of that prompt overrides this field at runtime.",
+      model: "Model",
+      fallbackModel: "Fallback model",
+      responseFormat: "Output format",
+      text: "Text",
+      temperature: "Temperature",
+      maxTokens: "Max tokens",
+      maxRevisions: "Max revisions",
+      graphType: "Graph topology",
+      qualityChecks: "Quality checks (comma-separated tool keys)",
+      tools: "Enabled tools",
+      mutates: "writes",
+      active: "Agent is active",
+    },
+    test: {
+      title: "Test runner",
+      subtitle:
+        "Send a small payload and inspect the agent's output, tool calls, and quality issues.",
+      variables: "Variables (JSON)",
+      payload: "Payload (text or JSON)",
+      payloadPlaceholder:
+        "What should the agent do? e.g. 'Generate 5 MCQ for B1 reading.'",
+      run: "Run agent",
+      running: "Running…",
+      ok: "Agent ran successfully",
+      output: "Output",
+      toolTrace: "Tool trace",
+      iterations: "Iterations",
+      revisions: "Revisions",
+      toolCalls: "Tool calls",
+      retrievalHits: "Retrieval hits",
+      qualityIssues: "Quality issues",
+      badVarsJson: "Variables must be valid JSON.",
+    },
+    graph: {
+      simple: "Simple",
+      planReviewRevise: "Plan • Review • Revise",
+      rag: "RAG",
+      react: "ReAct (tool-calling)",
+    },
+  },
+  tools: {
+    title: "Agent tools",
+    subtitle:
+      "Capabilities your agents can call. Toggle a tool off to take it out of every agent without editing each one.",
+    search: "Search tools…",
+    empty: "No tools match your search.",
+    writes: "writes",
+    toggle: {
+      enabled: "Tool enabled",
+      disabled: "Tool disabled",
+    },
+    col: {
+      key: "Key",
+      name: "Name",
+      category: "Category",
+      description: "Description",
+      params: "Params",
+      active: "Active",
+    },
+  },
+};
+
+export default en;

src/index.css

@@ -51,6 +51,14 @@
     --sidebar-accent-foreground: 8 40% 78%;
     --sidebar-border: 240 18% 20%;
     --sidebar-ring: 8 50% 58%;
+
+    /* Chart palette — used by Recharts via hsl(var(--chart-N)). Kept on the
+       warm/cool axis so pairs read well together when stacked. */
+    --chart-1: 8 50% 54%;
+    --chart-2: 220 70% 52%;
+    --chart-3: 152 60% 42%;
+    --chart-4: 38 92% 50%;
+    --chart-5: 280 55% 55%;
   }
 
   .dark {
@@ -99,6 +107,12 @@
     --sidebar-accent-foreground: 8 40% 75%;
     --sidebar-border: 240 18% 13%;
     --sidebar-ring: 8 50% 55%;
+
+    --chart-1: 8 52% 62%;
+    --chart-2: 220 65% 65%;
+    --chart-3: 152 50% 55%;
+    --chart-4: 38 75% 60%;
+    --chart-5: 280 55% 68%;
   }
 }
 
@@ -120,3 +134,103 @@
     font-family: 'JetBrains Mono', monospace;
   }
 }
+
+/* -------------------------------------------------------------------------
+ * RTL / Arabic support
+ *
+ * `tailwindcss-rtl` handles the bulk of the work: physical margin / padding /
+ * position / border / rounded / text-align / space-x utilities are mirrored
+ * automatically when `html[dir="rtl"]` is active.
+ *
+ * Below we cover the things Tailwind can't: the webfont (Inter has weak
+ * Arabic glyphs, so swap in Cairo), recharts tooltips/axes which have their
+ * own DOM, and a few icons that should NOT mirror (arrows used as pure
+ * visual affordance e.g. ChevronRight in a dropdown).
+ * ------------------------------------------------------------------------- */
+
+html[dir="rtl"] body,
+html[dir="rtl"] h1,
+html[dir="rtl"] h2,
+html[dir="rtl"] h3,
+html[dir="rtl"] h4,
+html[dir="rtl"] h5,
+html[dir="rtl"] h6,
+html[dir="rtl"] input,
+html[dir="rtl"] textarea,
+html[dir="rtl"] button,
+html[dir="rtl"] select {
+  font-family: 'Cairo', 'Inter', system-ui, sans-serif;
+}
+
+html[dir="rtl"] code,
+html[dir="rtl"] pre {
+  font-family: 'JetBrains Mono', monospace;
+}
+
+html[dir="rtl"] .recharts-wrapper,
+html[dir="rtl"] .recharts-legend-wrapper {
+  direction: ltr;
+}
+
+/* Breadcrumb and submenu chevrons: always pointing "forward" in reading
+   direction. Lucide's ChevronRight is ">" which is forward in LTR, but in
+   RTL the same arrow must become "<". We flip via CSS so no component has
+   to know about direction. */
+html[dir="rtl"] nav[aria-label="breadcrumb"] li[role="presentation"] > svg,
+html[dir="rtl"] [data-radix-menu-content] [role="menuitem"] > svg:last-child,
+html[dir="rtl"] [data-radix-popper-content-wrapper] [role="menuitem"] > svg:last-child {
+  transform: rotate(180deg);
+}
+
+/* Numbers, percentages, emails, URLs, dates should stay LTR-isolated even
+   when embedded in Arabic paragraphs, otherwise slashes / percent signs /
+   dashes drift to the wrong side and the value becomes unreadable.
+   <bdi> already gives us this per-element; the helper classes below are
+   for places where adding a wrapper element is awkward. */
+.ltr-nums,
+.dir-ltr {
+  direction: ltr;
+  unicode-bidi: isolate;
+}
+
+/* Pure-number cells & badges align to the end (right in LTR, left in RTL)
+   but the digits themselves still read left-to-right. */
+html[dir="rtl"] .numeric {
+  text-align: end;
+  direction: ltr;
+  unicode-bidi: isolate;
+}
+
+/* Some lucide icons are pure affordances (play, external-link, send) and
+   should NOT be mirrored even if tailwindcss-rtl would otherwise flip the
+   button that contains them. Authors opt-in with data-no-flip. */
+html[dir="rtl"] [data-no-flip] {
+  transform: none !important;
+}
+
+/* Keep code snippets, identifiers, and file paths readable in RTL. */
+html[dir="rtl"] code,
+html[dir="rtl"] pre,
+html[dir="rtl"] kbd,
+html[dir="rtl"] samp,
+html[dir="rtl"] [data-monospace] {
+  direction: ltr;
+  unicode-bidi: isolate;
+  text-align: start;
+}
+
+/* Scrollbars inside horizontally-scrollable tables already flip naturally
+   in RTL, but the shadow Radix portals (dropdowns, tooltips, dialogs) use
+   `right-0` / `left-0` positioning computed in JS. For safety, make sure
+   they inherit the document direction. */
+html[dir="rtl"] [data-radix-popper-content-wrapper] {
+  direction: rtl;
+}
+
+/* Inputs with dir="ltr" (email, password, URL) override but keep the
+   placeholder aligned to the visual start (right in RTL, left in LTR). */
+html[dir="rtl"] input[dir="ltr"]::placeholder,
+html[dir="rtl"] textarea[dir="ltr"]::placeholder {
+  text-align: right;
+}
+

src/lib/api-client.ts

@@ -1,4 +1,23 @@
-/** Base path or absolute URL for Odoo JSON API (dev: `/api` + Vite proxy). */
+/**
+ * Odoo REST client with transparent access-token rotation.
+ *
+ * Tokens live in ``localStorage`` under three keys:
+ *   - ``encoach_token``         — short-lived access JWT (1h)
+ *   - ``encoach_refresh_token`` — long-lived refresh JWT  (7d)
+ *   - ``encoach_token_exp``     — epoch seconds for the access token
+ *
+ * When a request receives ``401`` *and* a refresh token is present, the client
+ * silently rotates the pair via ``POST /api/auth/refresh`` and retries the
+ * original request exactly once. Multiple concurrent 401s coalesce onto the
+ * same refresh promise so we never fire more than one rotation in flight.
+ *
+ * Motivation: before this change, every expired access token forced a full
+ * re-login, which interrupted long admin dashboards (stats, reports) multiple
+ * times per hour. With the refresh loop, access tokens can be short-lived
+ * (1h) without hurting UX, giving us the security benefit of short access
+ * windows without an eager logout.
+ */
+
 export const API_BASE_URL = (import.meta.env.VITE_API_BASE_URL?.trim() || "/api").replace(/\/$/, "");
 const BASE_URL = API_BASE_URL;
 
@@ -21,120 +40,316 @@ export class ApiError extends Error {
   }
 }
 
-function getToken(): string | null {
+/**
-  return localStorage.getItem("encoach_token");
+ * Turn an arbitrary thrown value from an API mutation into a human-readable,
+ * actionable toast description. Deployment QA kept reporting generic
+ * "Submit failed" / "Upload failed" toasts — this helper surfaces the HTTP
+ * status and, when we recognise the code, a hint about what to do next
+ * (payload too big → ask ops to raise nginx, timeout → retry, etc.).
+ *
+ * @param err     the error thrown by an `api.*` call (usually an ApiError)
+ * @param fallback text to show if we can't classify the error
+ * @param context short context word used in the 413/504 hints
+ *                ("file", "request", "payload" …)
+ */
+export function describeApiError(
+  err: unknown,
+  fallback = "Something went wrong",
+  context = "request",
+): string {
+  const e = err as { status?: number; message?: string; data?: unknown } | null;
+  const status = e?.status;
+  // Try to extract a server-side error body even if the generic ApiError
+  // message wasn't populated (nginx 413/504 respond with an HTML page so
+  // `data.error` is empty and `message` looks like "413 ").
+  const serverMsg =
+    e?.data && typeof e.data === "object" && "error" in (e.data as object)
+      ? String((e.data as { error: unknown }).error || "").trim()
+      : "";
+
+  if (status === 413) {
+    return `The ${context} is too large for the server to accept (HTTP 413). Try a smaller file / fewer tasks, or ask an admin to raise the nginx \`client_max_body_size\` and Odoo \`limit_request\`.`;
+  }
+  if (status === 504) {
+    return `The server took too long to respond (HTTP 504). The ${context} may still be processing — wait a minute and reload before retrying.`;
+  }
+  if (status === 502) {
+    return "The backend is unreachable (HTTP 502). Odoo may be restarting — try again in a moment.";
+  }
+  if (status === 401) {
+    return "Your session expired — please sign in again.";
+  }
+  if (status === 403) {
+    return serverMsg || "You don't have permission to do that (HTTP 403).";
+  }
+  if (status === 404) {
+    return serverMsg || "The requested item no longer exists (HTTP 404).";
+  }
+  if (status === 422 || status === 400) {
+    return serverMsg || `The server rejected the ${context} as invalid (HTTP ${status}).`;
+  }
+  if (status && status >= 500) {
+    return `${serverMsg || "The server returned an error"} (HTTP ${status}). Check the Odoo logs for a stack trace.`;
+  }
+
+  // Network failure / fetch aborted / CORS — ApiError not thrown at all.
+  if (!status && e?.message) return e.message;
+
+  return fallback;
+}
+
+const ACCESS_KEY = "encoach_token";
+const REFRESH_KEY = "encoach_refresh_token";
+const EXP_KEY = "encoach_token_exp";
+
+function getAccessToken(): string | null {
+  return localStorage.getItem(ACCESS_KEY);
+}
+
+function getRefreshToken(): string | null {
+  return localStorage.getItem(REFRESH_KEY);
 }
 
 export function setToken(token: string): void {
-  localStorage.setItem("encoach_token", token);
+  localStorage.setItem(ACCESS_KEY, token);
+}
+
+export function setRefreshToken(token: string | null | undefined): void {
+  if (token) {
+    localStorage.setItem(REFRESH_KEY, token);
+  } else {
+    localStorage.removeItem(REFRESH_KEY);
+  }
+}
+
+export function setTokenExpiry(epochSeconds: number | null | undefined): void {
+  if (epochSeconds && Number.isFinite(epochSeconds)) {
+    localStorage.setItem(EXP_KEY, String(Math.floor(epochSeconds)));
+  } else {
+    localStorage.removeItem(EXP_KEY);
+  }
+}
+
+/** Persist the full token bundle returned by /api/login or /api/auth/refresh. */
+export function persistTokenBundle(bundle: {
+  access_token?: string;
+  token?: string;
+  refresh_token?: string;
+  expires_in?: number;
+}): void {
+  const access = bundle.access_token || bundle.token;
+  if (access) setToken(access);
+  setRefreshToken(bundle.refresh_token || null);
+  if (bundle.expires_in) {
+    setTokenExpiry(Math.floor(Date.now() / 1000) + bundle.expires_in);
+  }
 }
 
 export function clearToken(): void {
-  localStorage.removeItem("encoach_token");
+  localStorage.removeItem(ACCESS_KEY);
+  localStorage.removeItem(REFRESH_KEY);
+  localStorage.removeItem(EXP_KEY);
 }
 
-async function handleResponse<T>(response: Response): Promise<T> {
+// Shared refresh promise — any 401 that arrives while a refresh is in flight
-  const data = await response.json().catch(() => null);
+// waits on the existing request instead of firing a duplicate.
+let refreshPromise: Promise<boolean> | null = null;
 
-  if (response.status === 401) {
+async function performRefresh(): Promise<boolean> {
-    const hadToken = !!getToken();
+  const refreshToken = getRefreshToken();
-    clearToken();
+  if (!refreshToken) return false;
-    // Login failure is also 401 — do not hard-redirect when no session existed.
+  try {
-    if (hadToken) {
+    const res = await fetch(`${BASE_URL}/auth/refresh`, {
-      window.location.href = "/login";
+      method: "POST",
-    }
+      headers: { "Content-Type": "application/json" },
-    throw new ApiError(401, response.statusText, data);
+      body: JSON.stringify({ refresh_token: refreshToken }),
+    });
+    if (!res.ok) return false;
+    const data: {
+      access_token?: string;
+      token?: string;
+      refresh_token?: string;
+      expires_in?: number;
+    } = await res.json().catch(() => ({} as never));
+    if (!data.access_token && !data.token) return false;
+    persistTokenBundle(data);
+    return true;
+  } catch {
+    return false;
   }
-
-  if (!response.ok) {
-    throw new ApiError(response.status, response.statusText, data);
-  }
-
-  return data as T;
 }
 
-function buildHeaders(extra?: Record<string, string>): Record<string, string> {
+function refreshOnce(): Promise<boolean> {
-  const headers: Record<string, string> = {
+  if (!refreshPromise) {
-    "Content-Type": "application/json",
+    refreshPromise = performRefresh().finally(() => {
-    ...extra,
+      refreshPromise = null;
-  };
+    });
-
-  const token = getToken();
-  if (token) {
-    headers["Authorization"] = `Bearer ${token}`;
   }
+  return refreshPromise;
+}
 
+function getCurrentLanguage(): string {
+  // Mirrors the i18n bootstrap in src/i18n/index.ts: the user's explicit
+  // pick wins; everything else falls back to English. We intentionally do
+  // not consult navigator.language here so AI-generated content stays in
+  // English on first visit (matching the UI default) until the user flips
+  // the language toggle.
+  try {
+    const stored = localStorage.getItem("encoach-lang");
+    if (stored) return stored;
+  } catch {
+    // localStorage unavailable (SSR, sandboxing, etc.)
+  }
+  return "en";
+}
+
+function buildHeaders(extra?: Record<string, string>, withJson = true): Record<string, string> {
+  const headers: Record<string, string> = { ...extra };
+  if (withJson) headers["Content-Type"] = headers["Content-Type"] || "application/json";
+
+  const token = getAccessToken();
+  if (token) headers["Authorization"] = `Bearer ${token}`;
+
+  // Tell the backend which UI language the user is on so AI-generated content
+  // (coaching tips, insights, alerts, narratives) can be returned in the same
+  // language instead of always defaulting to English.
+  if (!headers["Accept-Language"]) {
+    headers["Accept-Language"] = getCurrentLanguage();
+  }
   return headers;
 }
 
-function buildUrl(path: string, params?: Record<string, string | number | boolean | undefined>): string {
+/**
+ * Query param values we know how to serialise into a URL. Arrays are joined
+ * with commas because that's what our Odoo controllers expect for multi-value
+ * filters (e.g. `?state=draft,confirmed`).
+ */
+export type QueryParamValue =
+  | string
+  | number
+  | boolean
+  | null
+  | undefined
+  | Array<string | number | boolean>;
+
+/**
+ * Accept any object-shaped bag of query params. We intentionally use `object`
+ * here rather than `Record<string, QueryParamValue>` because typed interfaces
+ * (e.g. `PaginationParams`) don't satisfy a `Record<...>` index signature by
+ * default, which would force every call-site to cast.
+ */
+export type QueryParams = object;
+
+function buildUrl(path: string, params?: QueryParams): string {
   const url = new URL(`${BASE_URL}${path}`, window.location.origin);
   if (params) {
-    Object.entries(params).forEach(([key, value]) => {
+    for (const [key, rawValue] of Object.entries(params as Record<string, unknown>)) {
-      if (value !== undefined) {
+      if (rawValue === undefined || rawValue === null) continue;
-        url.searchParams.set(key, String(value));
+      if (Array.isArray(rawValue)) {
+        if (rawValue.length === 0) continue;
+        url.searchParams.set(key, rawValue.map(v => String(v)).join(","));
+        continue;
       }
-    });
+      url.searchParams.set(key, String(rawValue));
+    }
   }
   return url.toString();
 }
 
+async function parseResponse<T>(response: Response): Promise<T> {
+  const data = await response.json().catch(() => null);
+  if (!response.ok) throw new ApiError(response.status, response.statusText, data);
+  return data as T;
+}
+
+type RequestInitWithSkip = RequestInit & { _skipRetry?: boolean };
+
+async function performRequest<T>(url: string, init: RequestInitWithSkip): Promise<T> {
+  const response = await fetch(url, init);
+
+  // Auth/refresh endpoints opt out of the retry loop — otherwise a bad
+  // refresh token would recurse forever.
+  const isAuthEndpoint = url.includes("/auth/refresh") || url.includes("/login");
+
+  if (response.status === 401 && !init._skipRetry && !isAuthEndpoint) {
+    const hadRefresh = !!getRefreshToken();
+    if (hadRefresh) {
+      const rotated = await refreshOnce();
+      if (rotated) {
+        // Rebuild headers so the new access token is attached.
+        const newInit: RequestInitWithSkip = {
+          ...init,
+          _skipRetry: true,
+          headers: {
+            ...(init.headers as Record<string, string>),
+            Authorization: `Bearer ${getAccessToken()}`,
+          },
+        };
+        return performRequest<T>(url, newInit);
+      }
+    }
+    const hadAccess = !!getAccessToken();
+    clearToken();
+    if (hadAccess || hadRefresh) {
+      // Use SPA-style navigation when possible; fall back to a hard nav only
+      // when we're inside a worker / non-browser context. A full document
+      // reload here used to feel like "the browser refreshes on every click"
+      // whenever an access token silently expired.
+      if (typeof window !== "undefined" && !window.location.pathname.startsWith("/login")) {
+        window.history.pushState({}, "", "/login");
+        window.dispatchEvent(new PopStateEvent("popstate"));
+      }
+    }
+    throw new ApiError(401, response.statusText, await response.json().catch(() => null));
+  }
+
+  return parseResponse<T>(response);
+}
+
 export const api = {
-  async get<T>(path: string, params?: Record<string, string | number | boolean | undefined>): Promise<T> {
+  async get<T>(path: string, params?: QueryParams): Promise<T> {
-    const res = await fetch(buildUrl(path, params), {
+    return performRequest<T>(buildUrl(path, params), {
       method: "GET",
       headers: buildHeaders(),
     });
-    return handleResponse<T>(res);
   },
 
   async post<T>(path: string, body?: unknown): Promise<T> {
-    const res = await fetch(buildUrl(path), {
+    return performRequest<T>(buildUrl(path), {
       method: "POST",
       headers: buildHeaders(),
       body: body ? JSON.stringify(body) : undefined,
     });
-    return handleResponse<T>(res);
   },
 
   async patch<T>(path: string, body?: unknown): Promise<T> {
-    const res = await fetch(buildUrl(path), {
+    return performRequest<T>(buildUrl(path), {
       method: "PATCH",
       headers: buildHeaders(),
       body: body ? JSON.stringify(body) : undefined,
     });
-    return handleResponse<T>(res);
   },
 
   async put<T>(path: string, body?: unknown): Promise<T> {
-    const res = await fetch(buildUrl(path), {
+    return performRequest<T>(buildUrl(path), {
       method: "PUT",
       headers: buildHeaders(),
       body: body ? JSON.stringify(body) : undefined,
     });
-    return handleResponse<T>(res);
   },
 
   async delete<T>(path: string): Promise<T> {
-    const res = await fetch(buildUrl(path), {
+    return performRequest<T>(buildUrl(path), {
       method: "DELETE",
       headers: buildHeaders(),
     });
-    return handleResponse<T>(res);
   },
 
   async upload<T>(path: string, formData: FormData): Promise<T> {
-    const token = getToken();
+    return performRequest<T>(buildUrl(path), {
-    const headers: Record<string, string> = {};
-    if (token) {
-      headers["Authorization"] = `Bearer ${token}`;
-    }
-
-    const res = await fetch(buildUrl(path), {
       method: "POST",
-      headers,
+      headers: buildHeaders(undefined, false),
       body: formData,
     });
-    return handleResponse<T>(res);
   },
 };

src/main.tsx

@@ -1,5 +1,6 @@
 import { createRoot } from "react-dom/client";
 import App from "./App.tsx";
 import "./index.css";
+import "./i18n";
 
 createRoot(document.getElementById("root")!).render(<App />);

src/pages/AdminDashboard.tsx

@@ -31,9 +31,10 @@ interface PlatformStats {
 export default function AdminDashboard() {
   const { data: stats } = useQuery<PlatformStats>({
     queryKey: ["platform", "stats"],
-    queryFn: async () => {
+    queryFn: async (): Promise<PlatformStats> => {
-      const res = await api.get<{ data: PlatformStats }>("/stats");
+      const res = await api.get<{ data: PlatformStats } | PlatformStats>("/stats");
-      return (res as { data: PlatformStats }).data ?? res;
+      const wrapped = res as { data?: PlatformStats };
+      return wrapped.data ?? (res as PlatformStats);
     },
     staleTime: 30_000,
   });

src/pages/ApprovalWorkflowsPage.tsx

@@ -1,119 +1,556 @@
+import { useState } from "react";
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogTrigger } from "@/components/ui/dialog";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+  DialogTrigger,
+} from "@/components/ui/dialog";
 import { Label } from "@/components/ui/label";
 import { Input } from "@/components/ui/input";
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Textarea } from "@/components/ui/textarea";
-import { Plus, CheckCircle, XCircle, Clock } from "lucide-react";
+import {
-import AiGradingAssistant from "@/components/ai/AiGradingAssistant";
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Plus,
+  CheckCircle,
+  XCircle,
+  Clock,
+  Loader2,
+  Trash2,
+  ChevronRight,
+  ShieldCheck,
+  FileText,
+} from "lucide-react";
 import { useToast } from "@/hooks/use-toast";
+import { api } from "@/lib/api-client";
 
-const workflows = [
+interface WorkflowStep {
-  {
+  id: number;
-    id: 1, name: "Exam Content Review", status: "In Progress",
+  sequence: number;
-    steps: [
+  approver_id: number | null;
-      { name: "Initial Review", assignee: "Dr. Smith", status: "Approved" },
+  approver_name: string;
-      { name: "Quality Check", assignee: "Prof. Lee", status: "Pending" },
+  status: string;
-      { name: "Final Approval", assignee: "Admin", status: "Waiting" },
+  comment: string;
-    ],
+  auto_escalate: boolean;
-  },
+  max_days: number;
-  {
+  acted_at: string | null;
-    id: 2, name: "Rubric Approval", status: "Completed",
+}
-    steps: [
+
-      { name: "Draft Review", assignee: "Mr. Kim", status: "Approved" },
+interface Workflow {
-      { name: "Academic Board", assignee: "Dr. Smith", status: "Approved" },
+  id: number;
-    ],
+  name: string;
-  },
+  type: string;
-  {
+  entity_id: number | null;
-    id: 3, name: "New Exam Structure", status: "Rejected",
+  entity_name: string | null;
-    steps: [
+  allow_bypass: boolean;
-      { name: "Content Review", assignee: "Prof. Lee", status: "Approved" },
+  active: boolean;
-      { name: "Standards Check", assignee: "Dr. Smith", status: "Rejected" },
+  steps: WorkflowStep[];
-    ],
+  created: string;
-  },
+}
-];
+
+interface ApprovalRequest {
+  id: number;
+  workflow_id: number | null;
+  workflow_name: string;
+  res_model: string;
+  res_id: number;
+  state: string;
+  requester_id: number | null;
+  requester_name: string;
+  current_stage_id: number | null;
+  current_stage_sequence: number | null;
+  bypass_reason: string;
+  created_at: string | null;
+}
+
+interface UserItem {
+  id: number;
+  name: string;
+  login: string;
+}
 
 const statusIcon = (s: string) => {
-  if (s === "Approved") return <CheckCircle className="h-4 w-4 text-success" />;
+  if (s === "approved") return <CheckCircle className="h-4 w-4 text-green-600" />;
-  if (s === "Rejected") return <XCircle className="h-4 w-4 text-destructive" />;
+  if (s === "rejected") return <XCircle className="h-4 w-4 text-destructive" />;
-  return <Clock className="h-4 w-4 text-warning" />;
+  return <Clock className="h-4 w-4 text-amber-500" />;
+};
+
+const stateBadge = (state: string) => {
+  const map: Record<string, "default" | "secondary" | "destructive" | "outline"> = {
+    approved: "default",
+    in_progress: "secondary",
+    rejected: "destructive",
+    draft: "outline",
+  };
+  return (
+    <Badge variant={map[state] || "outline"} className="capitalize">
+      {state.replace(/_/g, " ")}
+    </Badge>
+  );
 };
 
 export default function ApprovalWorkflowsPage() {
   const { toast } = useToast();
+  const qc = useQueryClient();
+
+  const [createOpen, setCreateOpen] = useState(false);
+  const [formName, setFormName] = useState("");
+  const [formType, setFormType] = useState("custom");
+  const [formSteps, setFormSteps] = useState<{ approver_id: string }[]>([
+    { approver_id: "" },
+    { approver_id: "" },
+  ]);
+
+  const [rejectDialog, setRejectDialog] = useState<number | null>(null);
+  const [rejectComment, setRejectComment] = useState("");
+
+  const workflowsQ = useQuery({
+    queryKey: ["approval-workflows"],
+    queryFn: () => api.get<{ items: Workflow[]; total: number }>("/approval-workflows"),
+  });
+
+  const requestsQ = useQuery({
+    queryKey: ["approval-requests"],
+    queryFn: () => api.get<{ items: ApprovalRequest[]; total: number }>("/approval-requests"),
+  });
+
+  const usersQ = useQuery({
+    queryKey: ["approval-users"],
+    queryFn: () => api.get<{ items: UserItem[] }>("/approval-users"),
+  });
+
+  const workflows = workflowsQ.data?.items ?? [];
+  const requests = requestsQ.data?.items ?? [];
+  const users = usersQ.data?.items ?? [];
+
+  const createMut = useMutation({
+    mutationFn: (data: Record<string, unknown>) => api.post("/approval-workflows", data),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["approval-workflows"] });
+      setCreateOpen(false);
+      resetForm();
+      toast({ title: "Workflow created" });
+    },
+    onError: (e: Error) => toast({ variant: "destructive", title: "Create failed", description: e.message }),
+  });
+
+  const deleteMut = useMutation({
+    mutationFn: (id: number) => api.delete(`/approval-workflows/${id}`),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["approval-workflows"] });
+      toast({ title: "Workflow deleted" });
+    },
+  });
+
+  const approveMut = useMutation({
+    mutationFn: (id: number) => api.post(`/approval-requests/${id}/approve`, {}),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["approval-requests"] });
+      qc.invalidateQueries({ queryKey: ["approval-workflows"] });
+      toast({ title: "Request approved" });
+    },
+    onError: (e: Error) => toast({ variant: "destructive", title: "Approve failed", description: e.message }),
+  });
+
+  const rejectMut = useMutation({
+    mutationFn: ({ id, comment }: { id: number; comment: string }) =>
+      api.post(`/approval-requests/${id}/reject`, { comment }),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["approval-requests"] });
+      qc.invalidateQueries({ queryKey: ["approval-workflows"] });
+      setRejectDialog(null);
+      setRejectComment("");
+      toast({ title: "Request rejected" });
+    },
+    onError: (e: Error) => toast({ variant: "destructive", title: "Reject failed", description: e.message }),
+  });
+
+  const resetForm = () => {
+    setFormName("");
+    setFormType("custom");
+    setFormSteps([{ approver_id: "" }, { approver_id: "" }]);
+  };
+
+  const handleCreate = () => {
+    createMut.mutate({
+      name: formName.trim(),
+      type: formType,
+      steps: formSteps
+        .filter((s) => s.approver_id)
+        .map((s) => ({ approver_id: Number(s.approver_id) })),
+    });
+  };
+
+  const pendingRequests = requests.filter((r) => r.state === "in_progress");
+  const completedRequests = requests.filter((r) => r.state !== "in_progress");
+
   return (
     <div className="space-y-6">
+      {/* Header */}
       <div className="flex items-center justify-between">
         <div>
           <h1 className="text-2xl font-bold tracking-tight">Approval Workflows</h1>
-          <p className="text-muted-foreground">Manage multi-step approval processes for exam content.</p>
+          <p className="text-muted-foreground">
+            Manage multi-step approval processes for exam content.
+          </p>
         </div>
-        <Dialog>
+        <Dialog
+          open={createOpen}
+          onOpenChange={(open) => {
+            setCreateOpen(open);
+            if (!open) resetForm();
+          }}
+        >
           <DialogTrigger asChild>
-            <Button size="sm"><Plus className="h-4 w-4 mr-1" /> Create Workflow</Button>
+            <Button size="sm">
+              <Plus className="h-4 w-4 mr-1" /> Create Workflow
+            </Button>
           </DialogTrigger>
           <DialogContent>
-            <DialogHeader><DialogTitle>Create Workflow</DialogTitle></DialogHeader>
+            <DialogHeader>
+              <DialogTitle>Create Workflow</DialogTitle>
+              <DialogDescription>Define a multi-step approval process.</DialogDescription>
+            </DialogHeader>
             <div className="space-y-4">
-              <div className="space-y-2"><Label>Workflow Name</Label><Input placeholder="e.g. Exam Content Review" /></div>
               <div className="space-y-2">
-                <Label>Step 1 — Assignee</Label>
+                <Label>
-                <Select><SelectTrigger><SelectValue placeholder="Select assignee" /></SelectTrigger>
+                  Workflow Name <span className="text-destructive">*</span>
-                  <SelectContent><SelectItem value="smith">Dr. Smith</SelectItem><SelectItem value="lee">Prof. Lee</SelectItem><SelectItem value="kim">Mr. Kim</SelectItem></SelectContent>
+                </Label>
-                </Select>
+                <Input
+                  value={formName}
+                  onChange={(e) => setFormName(e.target.value)}
+                  placeholder="e.g. Exam Content Review"
+                />
               </div>
               <div className="space-y-2">
-                <Label>Step 2 — Assignee</Label>
+                <Label>Type</Label>
-                <Select><SelectTrigger><SelectValue placeholder="Select assignee" /></SelectTrigger>
+                <Select value={formType} onValueChange={setFormType}>
-                  <SelectContent><SelectItem value="smith">Dr. Smith</SelectItem><SelectItem value="lee">Prof. Lee</SelectItem><SelectItem value="admin">Admin</SelectItem></SelectContent>
+                  <SelectTrigger>
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="custom">Custom</SelectItem>
+                    <SelectItem value="exam_publish">Exam Publication</SelectItem>
+                    <SelectItem value="assignment_publish">Assignment Publication</SelectItem>
+                    <SelectItem value="content_publish">Content Publication</SelectItem>
+                  </SelectContent>
                 </Select>
               </div>
-              <Button className="w-full">Create</Button>
+
+              {formSteps.map((step, i) => (
+                <div key={i} className="space-y-1">
+                  <div className="flex items-center justify-between">
+                    <Label>Step {i + 1} — Approver</Label>
+                    {formSteps.length > 1 && (
+                      <Button
+                        type="button"
+                        variant="ghost"
+                        size="icon"
+                        className="h-6 w-6 text-muted-foreground hover:text-destructive"
+                        onClick={() =>
+                          setFormSteps((s) => s.filter((_, idx) => idx !== i))
+                        }
+                      >
+                        <Trash2 className="h-3 w-3" />
+                      </Button>
+                    )}
+                  </div>
+                  <Select
+                    value={step.approver_id}
+                    onValueChange={(v) =>
+                      setFormSteps((s) =>
+                        s.map((st, idx) => (idx === i ? { ...st, approver_id: v } : st))
+                      )
+                    }
+                  >
+                    <SelectTrigger>
+                      <SelectValue placeholder="Select approver" />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {users.map((u) => (
+                        <SelectItem key={u.id} value={String(u.id)}>
+                          {u.name}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+              ))}
+
+              <Button
+                type="button"
+                variant="outline"
+                size="sm"
+                className="w-full"
+                onClick={() => setFormSteps((s) => [...s, { approver_id: "" }])}
+              >
+                <Plus className="h-3 w-3 mr-1" /> Add Step
+              </Button>
             </div>
+            <DialogFooter>
+              <Button variant="outline" onClick={() => setCreateOpen(false)}>
+                Cancel
+              </Button>
+              <Button
+                disabled={!formName.trim() || createMut.isPending}
+                onClick={handleCreate}
+              >
+                {createMut.isPending ? (
+                  <>
+                    <Loader2 className="h-4 w-4 animate-spin mr-2" />
+                    Creating...
+                  </>
+                ) : (
+                  "Create"
+                )}
+              </Button>
+            </DialogFooter>
           </DialogContent>
         </Dialog>
       </div>
 
-      <div className="space-y-4">
+      {/* Loading */}
+      {(workflowsQ.isLoading || requestsQ.isLoading) && (
+        <div className="flex justify-center py-12">
+          <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
+        </div>
+      )}
+
+      {/* Pending Requests */}
+      {pendingRequests.length > 0 && (
+        <div className="space-y-3">
+          <h2 className="text-lg font-semibold flex items-center gap-2">
+            <Clock className="h-5 w-5 text-amber-500" />
+            Pending Approval ({pendingRequests.length})
+          </h2>
+          {pendingRequests.map((req) => {
+            const wf = workflows.find((w) => w.id === req.workflow_id);
+            return (
+              <Card key={req.id} className="border-amber-200 bg-amber-50/30">
+                <CardContent className="p-4">
+                  <div className="flex items-center justify-between mb-3">
+                    <div>
+                      <p className="font-semibold">{req.workflow_name}</p>
+                      <p className="text-xs text-muted-foreground">
+                        Requested by {req.requester_name} &middot;{" "}
+                        {req.res_model.replace("encoach.", "")} #{req.res_id}
+                      </p>
+                    </div>
+                    {stateBadge(req.state)}
+                  </div>
+
+                  {wf && (
+                    <div className="flex items-center gap-2 flex-wrap mb-3">
+                      {wf.steps.map((step, i) => {
+                        const isActive = step.id === req.current_stage_id;
+                        return (
+                          <div key={step.id} className="flex items-center gap-2">
+                            <div
+                              className={`flex items-center gap-2 rounded-lg border p-3 min-w-[160px] transition-all ${
+                                isActive
+                                  ? "border-amber-400 bg-amber-50 ring-2 ring-amber-200"
+                                  : step.status === "approved"
+                                    ? "border-green-200 bg-green-50/50"
+                                    : step.status === "rejected"
+                                      ? "border-red-200 bg-red-50/50"
+                                      : "bg-muted/30"
+                              }`}
+                            >
+                              {statusIcon(step.status)}
+                              <div>
+                                <p className="text-sm font-medium">Step {i + 1}</p>
+                                <p className="text-xs text-muted-foreground">
+                                  {step.approver_name}
+                                </p>
+                              </div>
+                            </div>
+                            {i < wf.steps.length - 1 && (
+                              <ChevronRight className="h-4 w-4 text-muted-foreground shrink-0" />
+                            )}
+                          </div>
+                        );
+                      })}
+                    </div>
+                  )}
+
+                  <div className="flex gap-2">
+                    <Button
+                      size="sm"
+                      disabled={approveMut.isPending}
+                      onClick={() => approveMut.mutate(req.id)}
+                    >
+                      {approveMut.isPending ? (
+                        <Loader2 className="h-3.5 w-3.5 animate-spin mr-1" />
+                      ) : (
+                        <CheckCircle className="h-3.5 w-3.5 mr-1" />
+                      )}
+                      Approve
+                    </Button>
+                    <Button
+                      size="sm"
+                      variant="outline"
+                      onClick={() => setRejectDialog(req.id)}
+                    >
+                      <XCircle className="h-3.5 w-3.5 mr-1" />
+                      Reject
+                    </Button>
+                  </div>
+                </CardContent>
+              </Card>
+            );
+          })}
+        </div>
+      )}
+
+      {/* Workflow Templates */}
+      <div className="space-y-3">
+        <h2 className="text-lg font-semibold flex items-center gap-2">
+          <ShieldCheck className="h-5 w-5" />
+          Workflow Templates ({workflows.length})
+        </h2>
+        {workflows.length === 0 && !workflowsQ.isLoading && (
+          <Card className="border-dashed">
+            <CardContent className="p-8 text-center text-muted-foreground">
+              No workflows defined yet. Create one to get started.
+            </CardContent>
+          </Card>
+        )}
         {workflows.map((wf) => (
           <Card key={wf.id} className="border-0 shadow-sm">
             <CardHeader className="pb-3">
               <div className="flex items-center justify-between">
-                <CardTitle className="text-base font-semibold">{wf.name}</CardTitle>
+                <div className="flex items-center gap-3">
-                <Badge variant={wf.status === "Completed" ? "default" : wf.status === "Rejected" ? "destructive" : "secondary"}>{wf.status}</Badge>
+                  <CardTitle className="text-base font-semibold">{wf.name}</CardTitle>
+                  <Badge variant="outline" className="text-xs capitalize">
+                    {wf.type.replace(/_/g, " ")}
+                  </Badge>
+                </div>
+                <Button
+                  variant="ghost"
+                  size="icon"
+                  className="h-8 w-8 text-muted-foreground hover:text-destructive"
+                  onClick={() => {
+                    if (confirm(`Delete workflow "${wf.name}"?`)) deleteMut.mutate(wf.id);
+                  }}
+                >
+                  <Trash2 className="h-4 w-4" />
+                </Button>
               </div>
             </CardHeader>
             <CardContent>
-              <div className="flex items-center gap-2">
+              <div className="flex items-center gap-2 flex-wrap">
                 {wf.steps.map((step, i) => (
-                  <div key={i} className="flex items-center gap-2">
+                  <div key={step.id} className="flex items-center gap-2">
                     <div className="flex items-center gap-2 rounded-lg border p-3 bg-muted/30 min-w-[160px]">
-                      {statusIcon(step.status)}
+                      <div className="h-6 w-6 rounded-full bg-primary/10 flex items-center justify-center text-xs font-semibold text-primary">
+                        {i + 1}
+                      </div>
                       <div>
-                        <p className="text-sm font-medium">{step.name}</p>
+                        <p className="text-sm font-medium">{step.approver_name}</p>
-                        <p className="text-xs text-muted-foreground">{step.assignee}</p>
+                        <p className="text-xs text-muted-foreground">
+                          {step.max_days}d limit
+                          {step.auto_escalate ? " · auto-escalate" : ""}
+                        </p>
                       </div>
                     </div>
-                    {i < wf.steps.length - 1 && <div className="w-8 h-0.5 bg-border" />}
+                    {i < wf.steps.length - 1 && (
+                      <ChevronRight className="h-4 w-4 text-muted-foreground shrink-0" />
+                    )}
                   </div>
                 ))}
               </div>
-              {wf.status === "In Progress" && (
-                <div className="space-y-4 mt-4">
-                  <AiGradingAssistant onAccept={(marks, feedback) => {
-                    toast({ title: "AI Grade Accepted", description: `Marks: ${marks}/100 applied with AI feedback.` });
-                  }} />
-                  <div className="flex gap-2">
-                    <Button size="sm" variant="default">Approve</Button>
-                    <Button size="sm" variant="outline">Reject</Button>
-                  </div>
-                </div>
-              )}
             </CardContent>
           </Card>
         ))}
       </div>
+
+      {/* Completed Requests */}
+      {completedRequests.length > 0 && (
+        <div className="space-y-3">
+          <h2 className="text-lg font-semibold flex items-center gap-2">
+            <FileText className="h-5 w-5" />
+            Recent Decisions ({completedRequests.length})
+          </h2>
+          {completedRequests.map((req) => (
+            <Card key={req.id} className="border-0 shadow-sm">
+              <CardContent className="p-4 flex items-center justify-between">
+                <div>
+                  <p className="font-medium">{req.workflow_name}</p>
+                  <p className="text-xs text-muted-foreground">
+                    {req.requester_name} &middot; {req.res_model.replace("encoach.", "")} #
+                    {req.res_id}
+                    {req.created_at && (
+                      <>
+                        {" "}
+                        &middot; {new Date(req.created_at).toLocaleDateString()}
+                      </>
+                    )}
+                  </p>
+                </div>
+                {stateBadge(req.state)}
+              </CardContent>
+            </Card>
+          ))}
+        </div>
+      )}
+
+      {/* Reject Dialog */}
+      <Dialog
+        open={rejectDialog !== null}
+        onOpenChange={(open) => {
+          if (!open) {
+            setRejectDialog(null);
+            setRejectComment("");
+          }
+        }}
+      >
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>Reject Request</DialogTitle>
+            <DialogDescription>Provide a reason for rejection.</DialogDescription>
+          </DialogHeader>
+          <div className="space-y-2">
+            <Label>Comment</Label>
+            <Textarea
+              value={rejectComment}
+              onChange={(e) => setRejectComment(e.target.value)}
+              placeholder="Reason for rejection..."
+              rows={3}
+            />
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setRejectDialog(null)}>
+              Cancel
+            </Button>
+            <Button
+              variant="destructive"
+              disabled={rejectMut.isPending}
+              onClick={() => {
+                if (rejectDialog !== null) {
+                  rejectMut.mutate({ id: rejectDialog, comment: rejectComment });
+                }
+              }}
+            >
+              {rejectMut.isPending ? (
+                <Loader2 className="h-4 w-4 animate-spin mr-2" />
+              ) : null}
+              Reject
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

src/pages/AssignmentsPage.tsx

@@ -1,91 +1,341 @@
-import { useState } from "react";
+import { useState, useMemo } from "react";
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 import { Card, CardContent } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription, DialogFooter } from "@/components/ui/dialog";
 import { Label } from "@/components/ui/label";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
-import { Search, Plus, Trash2 } from "lucide-react";
+import {
-import { useAssignments, useCreateAssignment } from "@/hooks/queries";
+  Search, Plus, Trash2, Loader2, Calendar, Users, Clock,
+  CheckCircle2, Archive, AlertTriangle, PlayCircle, Eye
+} from "lucide-react";
+import { assignmentsService } from "@/services/assignments.service";
+import { api } from "@/lib/api-client";
+import { useBatches, useStudents } from "@/hooks/queries";
 import { useToast } from "@/hooks/use-toast";
+import type { ExamSchedule, ScheduleState, ExamScheduleCreateRequest } from "@/types";
+
+interface CustomExam {
+  id: number;
+  title: string;
+  status: string;
+}
+
+interface Entity {
+  id: number;
+  name: string;
+}
+
+const STATE_TABS: { key: ScheduleState | "all"; label: string; icon: React.ReactNode }[] = [
+  { key: "all", label: "All", icon: <Eye className="h-3.5 w-3.5" /> },
+  { key: "active", label: "Active", icon: <PlayCircle className="h-3.5 w-3.5" /> },
+  { key: "planned", label: "Planned", icon: <Clock className="h-3.5 w-3.5" /> },
+  { key: "past", label: "Past", icon: <CheckCircle2 className="h-3.5 w-3.5" /> },
+  { key: "start_expired", label: "Start Expired", icon: <AlertTriangle className="h-3.5 w-3.5" /> },
+  { key: "archived", label: "Archived", icon: <Archive className="h-3.5 w-3.5" /> },
+];
+
+const OPTION_FIELDS: { key: keyof ExamScheduleCreateRequest; label: string }[] = [
+  { key: "full_length", label: "Full length exams" },
+  { key: "generate_different", label: "Generate different exams" },
+  { key: "auto_release_results", label: "Auto release results" },
+  { key: "auto_start", label: "Auto start exam" },
+  { key: "official_exam", label: "Official Exam" },
+  { key: "hide_assignee_details", label: "Hide Assignees Details from Teachers" },
+];
+
+const stateBadgeVariant = (s: ScheduleState): "default" | "secondary" | "outline" | "destructive" => {
+  switch (s) {
+    case "active": return "default";
+    case "planned": return "secondary";
+    case "past": return "outline";
+    case "start_expired": return "destructive";
+    case "archived": return "outline";
+    default: return "secondary";
+  }
+};
+
+type FormState = {
+  name: string;
+  exam_id: string;
+  entity_id: string;
+  start_date: string;
+  start_time: string;
+  end_date: string;
+  end_time: string;
+  assign_mode: "entity" | "batch" | "individual";
+  batch_ids: Set<number>;
+  student_ids: Set<number>;
+  full_length: boolean;
+  generate_different: boolean;
+  auto_release_results: boolean;
+  auto_start: boolean;
+  official_exam: boolean;
+  hide_assignee_details: boolean;
+};
+
+const _iso = (d: Date) => {
+  const y = d.getFullYear();
+  const m = String(d.getMonth() + 1).padStart(2, "0");
+  const day = String(d.getDate()).padStart(2, "0");
+  return `${y}-${m}-${day}`;
+};
+
+const emptyForm = (): FormState => {
+  const today = new Date();
+  const inOneWeek = new Date();
+  inOneWeek.setDate(today.getDate() + 7);
+  return {
+    name: "",
+    exam_id: "",
+    entity_id: "",
+    start_date: _iso(today),
+    start_time: "09:00",
+    end_date: _iso(inOneWeek),
+    end_time: "17:00",
+    assign_mode: "batch",
+    batch_ids: new Set(),
+    student_ids: new Set(),
+    full_length: true,
+    generate_different: false,
+    auto_release_results: false,
+    auto_start: false,
+    official_exam: false,
+    hide_assignee_details: false,
+  };
+};
 
 export default function AssignmentsPage() {
   const [search, setSearch] = useState("");
+  const [stateFilter, setStateFilter] = useState<ScheduleState | "all">("all");
   const [createOpen, setCreateOpen] = useState(false);
-  const [form, setForm] = useState({ title: "", entity_id: "", start_date: "", end_date: "" });
+  const [form, setForm] = useState<FormState>(emptyForm());
+  const [studentQuery, setStudentQuery] = useState("");
   const { toast } = useToast();
+  const qc = useQueryClient();
 
-  const assignmentsQ = useAssignments({ size: 200 });
+  const schedulesQ = useQuery({
-  const createMut = useCreateAssignment();
+    queryKey: ["exam-schedules", stateFilter],
+    queryFn: () => assignmentsService.listSchedules(
+      stateFilter === "all" ? {} : { state: stateFilter }
+    ),
+  });
+  const schedules = schedulesQ.data?.items ?? [];
 
-  const items = assignmentsQ.data?.items ?? assignmentsQ.data?.data ?? [];
+  const customExamsQ = useQuery({
-  const assignments = Array.isArray(items) ? items : [];
+    queryKey: ["custom-exams-for-assign"],
-
+    queryFn: () => api.get<{ items: CustomExam[]; total: number }>("/exam/custom/list?per_page=200"),
-  const q = search.toLowerCase();
+  });
-  const filtered = assignments.filter(a =>
+  const publishedExams = (customExamsQ.data?.items ?? []).filter(
-    a.title?.toLowerCase().includes(q) || a.entity_name?.toLowerCase().includes(q),
+    (e) => e.status === "published" || e.status === "draft"
   );
 
-  const loading = assignmentsQ.isLoading;
+  const entitiesQ = useQuery({
+    queryKey: ["entities-for-assign"],
+    queryFn: () => api.get<{ items: Entity[] }>("/entities"),
+  });
+  const entities = entitiesQ.data?.items ?? [];
+
+  const batchesQ = useBatches({ size: 200 });
+  const batches = batchesQ.data?.items ?? [];
+
+  const studentsQ = useStudents({ size: 200 });
+  const students = studentsQ.data?.items ?? [];
+  const filteredStudents = useMemo(() => {
+    const q = studentQuery.trim().toLowerCase();
+    if (!q) return students;
+    return students.filter((s) =>
+      (s.name || "").toLowerCase().includes(q) ||
+      (s.email || "").toLowerCase().includes(q),
+    );
+  }, [students, studentQuery]);
+
+  const stateCounts = useMemo(() => {
+    const all = schedulesQ.data?.items ?? [];
+    const counts: Record<string, number> = { all: all.length };
+    for (const s of all) {
+      counts[s.state] = (counts[s.state] || 0) + 1;
+    }
+    return counts;
+  }, [schedulesQ.data]);
+
+  const allSchedulesQ = useQuery({
+    queryKey: ["exam-schedules", "all"],
+    queryFn: () => assignmentsService.listSchedules({}),
+    enabled: stateFilter !== "all",
+  });
+
+  const totalCounts = useMemo(() => {
+    const items = stateFilter === "all" ? schedules : (allSchedulesQ.data?.items ?? []);
+    const counts: Record<string, number> = { all: items.length };
+    for (const s of items) {
+      counts[s.state] = (counts[s.state] || 0) + 1;
+    }
+    return counts;
+  }, [stateFilter, schedules, allSchedulesQ.data]);
+
+  const createMut = useMutation({
+    mutationFn: (data: ExamScheduleCreateRequest) => assignmentsService.createSchedule(data),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["exam-schedules"] });
+      setCreateOpen(false);
+      setForm(emptyForm());
+      toast({ title: "Exam scheduled successfully" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Error", description: err.message }),
+  });
+
+  const deleteMut = useMutation({
+    mutationFn: (id: number) => assignmentsService.deleteSchedule(id),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["exam-schedules"] });
+      toast({ title: "Schedule deleted" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Error", description: err.message }),
+  });
+
+  const archiveMut = useMutation({
+    mutationFn: (id: number) => assignmentsService.archiveSchedule(id),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["exam-schedules"] });
+      toast({ title: "Schedule archived" });
+    },
+  });
+
+  const q = search.toLowerCase();
+  const filtered = schedules.filter(
+    (s) => s.name.toLowerCase().includes(q) || s.exam_title.toLowerCase().includes(q)
+  );
 
   function handleCreate() {
-    createMut.mutate(
+    const startDt = form.start_date && form.start_time ? `${form.start_date}T${form.start_time}:00` : "";
-      { title: form.title, entity_id: Number(form.entity_id) || 0, start_date: form.start_date, end_date: form.end_date },
+    const endDt = form.end_date && form.end_time ? `${form.end_date}T${form.end_time}:00` : "";
-      {
+
-        onSuccess: () => { setCreateOpen(false); setForm({ title: "", entity_id: "", start_date: "", end_date: "" }); toast({ title: "Assignment created" }); },
+    if (!form.name || !form.exam_id || !startDt || !endDt) {
-        onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+      toast({ variant: "destructive", title: "Missing fields", description: "Please fill in name, exam, start date/time, and end date/time." });
-      },
+      return;
-    );
+    }
+
+    createMut.mutate({
+      name: form.name,
+      exam_id: Number(form.exam_id),
+      entity_id: form.entity_id ? Number(form.entity_id) : undefined,
+      start_date: startDt,
+      end_date: endDt,
+      assign_mode: form.assign_mode,
+      batch_ids: [...form.batch_ids],
+      student_ids: [...form.student_ids],
+      full_length: form.full_length,
+      generate_different: form.generate_different,
+      auto_release_results: form.auto_release_results,
+      auto_start: form.auto_start,
+      official_exam: form.official_exam,
+      hide_assignee_details: form.hide_assignee_details,
+    });
   }
 
+  const updateF = (patch: Partial<FormState>) => setForm((p) => ({ ...p, ...patch }));
+
   return (
     <div className="space-y-6">
       <div className="flex items-center justify-between">
         <div>
-          <h1 className="text-2xl font-bold tracking-tight">Assignments</h1>
+          <h1 className="text-2xl font-bold tracking-tight flex items-center gap-2">
-          <p className="text-muted-foreground">Create and manage assignments.</p>
+            <Calendar className="h-6 w-6 text-primary" /> Assignments
+          </h1>
+          <p className="text-muted-foreground">Schedule exams and assign them to entities, classes, or students.</p>
         </div>
-        <Button size="sm" onClick={() => setCreateOpen(true)}>
+        <Button onClick={() => { setForm(emptyForm()); setCreateOpen(true); }}>
-          <Plus className="h-4 w-4 mr-1" /> Create Assignment
+          <Plus className="h-4 w-4 mr-1" /> Schedule Exam
         </Button>
       </div>
 
+      {/* State tabs */}
+      <div className="inline-flex items-center rounded-full border-2 border-primary bg-primary/5 p-1 gap-0">
+        {STATE_TABS.map((tab) => (
+          <button
+            key={tab.key}
+            className={`flex items-center gap-1.5 px-4 py-2 rounded-full text-sm font-medium transition-all ${
+              stateFilter === tab.key
+                ? "bg-white text-primary shadow-sm"
+                : "text-primary/70 hover:text-primary"
+            }`}
+            onClick={() => setStateFilter(tab.key)}
+          >
+            {tab.icon}
+            {tab.label}
+            <span className={`text-xs ml-0.5 ${stateFilter === tab.key ? "text-primary" : "text-primary/50"}`}>
+              ({totalCounts[tab.key] ?? 0})
+            </span>
+          </button>
+        ))}
+      </div>
+
       <div className="relative max-w-sm">
         <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
-        <Input placeholder="Search assignments..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
+        <Input placeholder="Search schedules..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
       </div>
 
-      {loading ? (
+      {schedulesQ.isLoading ? (
-        <div className="flex items-center justify-center min-h-[300px]"><div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" /></div>
+        <div className="flex justify-center py-12"><Loader2 className="h-8 w-8 animate-spin text-muted-foreground" /></div>
+      ) : filtered.length === 0 ? (
+        <Card className="border-dashed">
+          <CardContent className="p-12 text-center text-muted-foreground">
+            <Calendar className="h-10 w-10 mx-auto mb-3 opacity-40" />
+            <p className="font-medium">No exam schedules found</p>
+            <p className="text-sm mt-1">Create a new schedule to assign exams to students.</p>
+          </CardContent>
+        </Card>
       ) : (
         <Card className="border-0 shadow-sm">
           <CardContent className="p-0">
             <Table>
               <TableHeader>
                 <TableRow>
-                  <TableHead>Title</TableHead>
+                  <TableHead>Schedule Name</TableHead>
+                  <TableHead>Exam</TableHead>
                   <TableHead>Entity</TableHead>
                   <TableHead>Start</TableHead>
                   <TableHead>End</TableHead>
                   <TableHead>State</TableHead>
                   <TableHead>Assignees</TableHead>
                   <TableHead>Completed</TableHead>
+                  <TableHead className="text-right">Actions</TableHead>
                 </TableRow>
               </TableHeader>
               <TableBody>
-                {filtered.length === 0 && (
+                {filtered.map((s) => (
-                  <TableRow><TableCell colSpan={7} className="text-center text-muted-foreground py-8">No assignments found.</TableCell></TableRow>
+                  <TableRow key={s.id}>
-                )}
+                    <TableCell className="font-medium">{s.name}</TableCell>
-                {filtered.map((a) => (
+                    <TableCell>{s.exam_title}</TableCell>
-                  <TableRow key={a.id}>
+                    <TableCell>{s.entity_name || "—"}</TableCell>
-                    <TableCell className="font-medium">{a.title}</TableCell>
+                    <TableCell className="text-xs">{s.start_date ? new Date(s.start_date).toLocaleString() : "—"}</TableCell>
-                    <TableCell>{a.entity_name || "—"}</TableCell>
+                    <TableCell className="text-xs">{s.end_date ? new Date(s.end_date).toLocaleString() : "—"}</TableCell>
-                    <TableCell>{a.start_date || "—"}</TableCell>
+                    <TableCell>
-                    <TableCell>{a.end_date || "—"}</TableCell>
+                      <Badge variant={stateBadgeVariant(s.state)} className="capitalize">{s.state.replace("_", " ")}</Badge>
-                    <TableCell><Badge variant={a.state === "active" ? "default" : "secondary"} className="capitalize">{a.state}</Badge></TableCell>
+                    </TableCell>
-                    <TableCell>{a.assignee_count ?? 0}</TableCell>
+                    <TableCell>
-                    <TableCell>{a.completed_count ?? 0}</TableCell>
+                      <div className="flex items-center gap-1"><Users className="h-3.5 w-3.5 text-muted-foreground" />{s.assignee_count}</div>
+                    </TableCell>
+                    <TableCell>{s.completed_count}</TableCell>
+                    <TableCell className="text-right">
+                      <div className="flex justify-end gap-1">
+                        {s.state !== "archived" && (
+                          <Button variant="ghost" size="icon" className="h-7 w-7" title="Archive"
+                            onClick={() => archiveMut.mutate(s.id)}>
+                            <Archive className="h-3.5 w-3.5" />
+                          </Button>
+                        )}
+                        <Button variant="ghost" size="icon" className="h-7 w-7 text-destructive hover:text-destructive" title="Delete"
+                          onClick={() => { if (confirm(`Delete schedule "${s.name}"?`)) deleteMut.mutate(s.id); }}>
+                          <Trash2 className="h-3.5 w-3.5" />
+                        </Button>
+                      </div>
+                    </TableCell>
                   </TableRow>
                 ))}
               </TableBody>
@@ -94,21 +344,188 @@ export default function AssignmentsPage() {
         </Card>
       )}
 
+      {/* Create Schedule Dialog */}
       <Dialog open={createOpen} onOpenChange={setCreateOpen}>
-        <DialogContent>
+        <DialogContent className="max-w-2xl max-h-[90vh] overflow-y-auto">
-          <DialogHeader><DialogTitle>Create Assignment</DialogTitle></DialogHeader>
+          <DialogHeader>
-          <div className="space-y-4">
+            <DialogTitle>Schedule Exam</DialogTitle>
-            <div className="space-y-2"><Label>Title</Label><Input value={form.title} onChange={(e) => setForm(f => ({ ...f, title: e.target.value }))} placeholder="e.g. IELTS Prep Q2" /></div>
+            <DialogDescription>Select an exam, assign it to students, and set scheduling options.</DialogDescription>
-            <div className="space-y-2"><Label>Entity ID</Label><Input type="number" value={form.entity_id} onChange={(e) => setForm(f => ({ ...f, entity_id: e.target.value }))} /></div>
+          </DialogHeader>
-            <div className="grid grid-cols-2 gap-3">
+
-              <div className="space-y-2"><Label>Start Date</Label><Input type="date" value={form.start_date} onChange={(e) => setForm(f => ({ ...f, start_date: e.target.value }))} /></div>
+          <div className="space-y-5 py-2">
-              <div className="space-y-2"><Label>End Date</Label><Input type="date" value={form.end_date} onChange={(e) => setForm(f => ({ ...f, end_date: e.target.value }))} /></div>
+            {/* Basic info */}
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+              <div className="space-y-1">
+                <Label>Schedule Name <span className="text-destructive">*</span></Label>
+                <Input value={form.name} onChange={(e) => updateF({ name: e.target.value })} placeholder="e.g. Q2 IELTS Exam" />
+              </div>
+              <div className="space-y-1">
+                <Label>Select Exam <span className="text-destructive">*</span></Label>
+                <Select value={form.exam_id} onValueChange={(v) => updateF({ exam_id: v })}>
+                  <SelectTrigger><SelectValue placeholder="Choose exam..." /></SelectTrigger>
+                  <SelectContent>
+                    {publishedExams.map((e) => (
+                      <SelectItem key={e.id} value={String(e.id)}>
+                        {e.title} <span className="text-xs text-muted-foreground ml-1">({e.status})</span>
+                      </SelectItem>
+                    ))}
+                    {publishedExams.length === 0 && (
+                      <SelectItem value="_none" disabled>No exams available</SelectItem>
+                    )}
+                  </SelectContent>
+                </Select>
+              </div>
+            </div>
+
+            {/* Date/Time */}
+            <div className="space-y-2">
+              <Label className="text-sm font-semibold">Schedule Date & Time</Label>
+              <div className="grid grid-cols-2 md:grid-cols-4 gap-3">
+                <div className="space-y-1">
+                  <Label className="text-xs">Start Date <span className="text-destructive">*</span></Label>
+                  <Input type="date" value={form.start_date} onChange={(e) => updateF({ start_date: e.target.value })} />
+                </div>
+                <div className="space-y-1">
+                  <Label className="text-xs">Start Time</Label>
+                  <Input type="time" value={form.start_time} onChange={(e) => updateF({ start_time: e.target.value })} />
+                </div>
+                <div className="space-y-1">
+                  <Label className="text-xs">End Date <span className="text-destructive">*</span></Label>
+                  <Input type="date" value={form.end_date} onChange={(e) => updateF({ end_date: e.target.value })} />
+                </div>
+                <div className="space-y-1">
+                  <Label className="text-xs">End Time</Label>
+                  <Input type="time" value={form.end_time} onChange={(e) => updateF({ end_time: e.target.value })} />
+                </div>
+              </div>
+            </div>
+
+            {/* Options checkboxes */}
+            <div className="space-y-2">
+              <Label className="text-sm font-semibold">Exam Options</Label>
+              <div className="flex flex-wrap gap-x-6 gap-y-2">
+                {OPTION_FIELDS.map((opt) => (
+                  <label key={opt.key} className="flex items-center gap-2 text-sm cursor-pointer">
+                    <Checkbox
+                      checked={form[opt.key] as boolean}
+                      onCheckedChange={(checked) => updateF({ [opt.key]: !!checked } as Partial<FormState>)}
+                      className="h-4 w-4"
+                    />
+                    {opt.label}
+                  </label>
+                ))}
+              </div>
+            </div>
+
+            {/* Assignment target */}
+            <div className="space-y-3">
+              <Label className="text-sm font-semibold">Assign To</Label>
+              <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                <div className="space-y-1">
+                  <Label className="text-xs">Assignment Mode</Label>
+                  <Select value={form.assign_mode} onValueChange={(v) => updateF({ assign_mode: v as FormState["assign_mode"] })}>
+                    <SelectTrigger><SelectValue /></SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value="entity">Entire Entity</SelectItem>
+                      <SelectItem value="batch">Class / Batch</SelectItem>
+                      <SelectItem value="individual">Individual Students</SelectItem>
+                    </SelectContent>
+                  </Select>
+                </div>
+                <div className="space-y-1">
+                  <Label className="text-xs">Entity</Label>
+                  <Select value={form.entity_id} onValueChange={(v) => updateF({ entity_id: v })}>
+                    <SelectTrigger><SelectValue placeholder="Select entity..." /></SelectTrigger>
+                    <SelectContent>
+                      {entities.map((e) => (
+                        <SelectItem key={e.id} value={String(e.id)}>{e.name}</SelectItem>
+                      ))}
+                      {entities.length === 0 && (
+                        <SelectItem value="_none" disabled>No entities</SelectItem>
+                      )}
+                    </SelectContent>
+                  </Select>
+                </div>
+              </div>
+
+              {/* Batch selection */}
+              {form.assign_mode === "batch" && (
+                <div className="space-y-1">
+                  <Label className="text-xs">Select Classes</Label>
+                  <div className="max-h-36 overflow-y-auto border rounded-md p-2 space-y-1">
+                    {batches.map((b) => (
+                      <label key={b.id} className="flex items-center gap-2 text-sm cursor-pointer hover:bg-muted/50 rounded px-1 py-0.5">
+                        <Checkbox
+                          checked={form.batch_ids.has(b.id)}
+                          onCheckedChange={(checked) => {
+                            setForm((p) => {
+                              const next = new Set(p.batch_ids);
+                              checked ? next.add(b.id) : next.delete(b.id);
+                              return { ...p, batch_ids: next };
+                            });
+                          }}
+                          className="h-3.5 w-3.5"
+                        />
+                        {b.name}
+                      </label>
+                    ))}
+                    {batches.length === 0 && <p className="text-xs text-muted-foreground italic text-center py-2">No classes available</p>}
+                  </div>
+                </div>
+              )}
+
+              {/* Individual student selection */}
+              {form.assign_mode === "individual" && (
+                <div className="space-y-1">
+                  <div className="flex items-center justify-between gap-2">
+                    <Label className="text-xs">Select Students</Label>
+                    <span className="text-[11px] text-muted-foreground">
+                      {form.student_ids.size} selected · {students.length} total
+                    </span>
+                  </div>
+                  {/* Search box — needed because QA reported long student lists
+                      made bottom entries unreachable inside the inner scroll
+                      container. Filtering keeps the list short and predictable. */}
+                  <Input
+                    placeholder="Search students by name or email…"
+                    value={studentQuery}
+                    onChange={(e) => setStudentQuery(e.target.value)}
+                    className="h-8 text-xs"
+                  />
+                  <div className="max-h-64 overflow-y-auto border rounded-md p-2 space-y-1">
+                    {filteredStudents.map((s) => (
+                      <label key={s.id} className="flex items-center gap-2 text-sm cursor-pointer hover:bg-muted/50 rounded px-1 py-0.5">
+                        <Checkbox
+                          checked={form.student_ids.has(s.id)}
+                          onCheckedChange={(checked) => {
+                            setForm((p) => {
+                              const next = new Set(p.student_ids);
+                              checked ? next.add(s.id) : next.delete(s.id);
+                              return { ...p, student_ids: next };
+                            });
+                          }}
+                          className="h-3.5 w-3.5"
+                        />
+                        {s.name}
+                        {s.email && <span className="text-xs text-muted-foreground ml-auto">{s.email}</span>}
+                      </label>
+                    ))}
+                    {filteredStudents.length === 0 && students.length > 0 && (
+                      <p className="text-xs text-muted-foreground italic text-center py-2">
+                        No students match “{studentQuery}”.
+                      </p>
+                    )}
+                    {students.length === 0 && <p className="text-xs text-muted-foreground italic text-center py-2">No students available</p>}
+                  </div>
+                </div>
+              )}
             </div>
           </div>
+
           <DialogFooter>
             <Button variant="outline" onClick={() => setCreateOpen(false)}>Cancel</Button>
-            <Button disabled={createMut.isPending || !form.title} onClick={handleCreate}>
+            <Button disabled={createMut.isPending || !form.name || !form.exam_id || !form.start_date || !form.end_date} onClick={handleCreate}>
-              {createMut.isPending ? "Creating..." : "Create"}
+              {createMut.isPending ? <><Loader2 className="h-4 w-4 animate-spin mr-2" />Creating...</> : "Schedule Exam"}
             </Button>
           </DialogFooter>
         </DialogContent>

src/pages/ClassroomsPage.tsx

@@ -3,11 +3,12 @@ import { Card, CardContent } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter, DialogDescription } from "@/components/ui/dialog";
 import { Label } from "@/components/ui/label";
 import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
-import { Search, Plus, Trash2, Users } from "lucide-react";
+import { Search, Plus, Trash2, Users, UserPlus, UserMinus, Pencil } from "lucide-react";
-import { useBatches, useCourses } from "@/hooks/queries";
+import { useBatches, useCourses, useStudents } from "@/hooks/queries";
 import { lmsService } from "@/services/lms.service";
 import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { useToast } from "@/hooks/use-toast";
@@ -17,49 +18,124 @@ export default function ClassroomsPage() {
   const [search, setSearch] = useState("");
   const [createOpen, setCreateOpen] = useState(false);
   const [form, setForm] = useState({ name: "", course_id: "", start_date: "", end_date: "", max_students: "" });
+  const [editOpen, setEditOpen] = useState(false);
+  const [editBatch, setEditBatch] = useState<{ id: number; name: string; course_id: string; start_date: string; end_date: string } | null>(null);
+  const [studentsOpen, setStudentsOpen] = useState(false);
+  const [studentsBatchId, setStudentsBatchId] = useState<number | null>(null);
+  const [addStudentsOpen, setAddStudentsOpen] = useState(false);
+  const [selectedAddIds, setSelectedAddIds] = useState<number[]>([]);
   const { toast } = useToast();
   const qc = useQueryClient();
 
   const batchesQ = useBatches({ size: 200 });
   const coursesQ = useCourses({ size: 200 });
+  const studentsQ = useStudents({ size: 200 });
   const batches = batchesQ.data?.items ?? [];
   const courses = coursesQ.data?.items ?? [];
+  const allStudents = studentsQ.data?.items ?? [];
 
   const createMut = useMutation({
     mutationFn: (data: Parameters<typeof lmsService.createBatch>[0]) => lmsService.createBatch(data),
-    onSuccess: () => { qc.invalidateQueries({ queryKey: ["lms", "batches"] }); setCreateOpen(false); setForm({ name: "", course_id: "", start_date: "", end_date: "", max_students: "" }); toast({ title: "Classroom created" }); },
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["lms", "batches"] });
+      setCreateOpen(false);
+      setForm({ name: "", course_id: "", start_date: "", end_date: "", max_students: "" });
+      toast({ title: "Classroom created" });
+    },
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+  });
+
+  const updateMut = useMutation({
+    mutationFn: ({ id, data }: { id: number; data: Record<string, unknown> }) => lmsService.updateBatch(id, data as never),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["lms", "batches"] });
+      setEditOpen(false);
+      toast({ title: "Classroom updated" });
+    },
     onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
   });
 
   const deleteMut = useMutation({
     mutationFn: (id: number) => lmsService.deleteBatch(id),
-    onSuccess: () => { qc.invalidateQueries({ queryKey: ["lms", "batches"] }); toast({ title: "Deleted" }); },
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["lms", "batches"] });
+      toast({ title: "Deleted" });
+    },
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+  });
+
+  const addStudentsMut = useMutation({
+    mutationFn: ({ batchId, studentIds }: { batchId: number; studentIds: number[] }) =>
+      lmsService.addStudentsToBatch(batchId, studentIds),
+    onSuccess: (res) => {
+      qc.invalidateQueries({ queryKey: ["lms", "batches"] });
+      setAddStudentsOpen(false);
+      setSelectedAddIds([]);
+      toast({ title: `Added ${res.total} student(s)` });
+    },
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+  });
+
+  const removeStudentMut = useMutation({
+    mutationFn: ({ batchId, studentIds }: { batchId: number; studentIds: number[] }) =>
+      lmsService.removeStudentsFromBatch(batchId, studentIds),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["lms", "batches"] });
+      toast({ title: "Student removed from classroom" });
+    },
     onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
   });
 
   const q = search.toLowerCase();
-  const filtered = batches.filter(b => b.name.toLowerCase().includes(q) || b.course_name?.toLowerCase().includes(q));
+  const filtered = batches.filter(
+    (b) => b.name.toLowerCase().includes(q) || b.course_name?.toLowerCase().includes(q),
+  );
   const loading = batchesQ.isLoading;
 
+  const currentBatch = batches.find((b) => b.id === studentsBatchId);
+  const batchStudentIds = new Set(currentBatch?.student_ids ?? []);
+  const availableStudents = allStudents.filter((s) => !batchStudentIds.has(s.id));
+
+  function openStudents(batchId: number) {
+    setStudentsBatchId(batchId);
+    setStudentsOpen(true);
+  }
+
+  function openEdit(b: typeof batches[0]) {
+    setEditBatch({
+      id: b.id,
+      name: b.name,
+      course_id: String(b.course_id || ""),
+      start_date: b.start_date,
+      end_date: b.end_date,
+    });
+    setEditOpen(true);
+  }
+
   return (
     <div className="space-y-6">
       <div className="flex items-center justify-between">
         <div>
           <h1 className="text-2xl font-bold tracking-tight">Classrooms</h1>
-          <p className="text-muted-foreground">Create and manage batches (classrooms).</p>
+          <p className="text-muted-foreground">Create and manage classrooms with students.</p>
         </div>
         <Button size="sm" onClick={() => setCreateOpen(true)}>
           <Plus className="h-4 w-4 mr-1" /> Create Classroom
         </Button>
       </div>
 
-      <div className="relative max-w-sm">
+      <div className="flex gap-3 items-center">
-        <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
+        <div className="relative flex-1 max-w-sm">
-        <Input placeholder="Search classrooms..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
+          <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
+          <Input placeholder="Search classrooms..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
+        </div>
+        <Badge variant="secondary">{batches.length} total</Badge>
       </div>
 
       {loading ? (
-        <div className="flex items-center justify-center min-h-[300px]"><div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" /></div>
+        <div className="flex items-center justify-center min-h-[300px]">
+          <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" />
+        </div>
       ) : (
         <Card className="border-0 shadow-sm">
           <CardContent className="p-0">
@@ -69,29 +145,67 @@ export default function ClassroomsPage() {
                   <TableHead>Name</TableHead>
                   <TableHead>Course</TableHead>
                   <TableHead>Students</TableHead>
-                  <TableHead>Capacity</TableHead>
                   <TableHead>Dates</TableHead>
                   <TableHead>Status</TableHead>
-                  <TableHead className="w-10" />
+                  <TableHead className="w-[140px]" />
                 </TableRow>
               </TableHeader>
               <TableBody>
                 {filtered.length === 0 && (
-                  <TableRow><TableCell colSpan={7} className="text-center text-muted-foreground py-8">No classrooms found.</TableCell></TableRow>
+                  <TableRow>
+                    <TableCell colSpan={6} className="text-center text-muted-foreground py-8">
+                      No classrooms found.
+                    </TableCell>
+                  </TableRow>
                 )}
                 {filtered.map((b) => (
                   <TableRow key={b.id}>
                     <TableCell className="font-medium">{b.name}</TableCell>
-                    <TableCell>{b.course_name}</TableCell>
+                    <TableCell>{b.course_name || "—"}</TableCell>
-                    <TableCell><Badge variant="secondary"><Users className="h-3 w-3 mr-1" />{b.student_count}</Badge></TableCell>
-                    <TableCell>{b.capacity}</TableCell>
-                    <TableCell className="text-sm">{b.start_date} — {b.end_date}</TableCell>
-                    <TableCell><Badge variant={b.status === "active" ? "default" : "secondary"} className="capitalize">{b.status}</Badge></TableCell>
                     <TableCell>
-                      <Button variant="ghost" size="icon" className="h-8 w-8 text-destructive" onClick={() => { if (window.confirm(`Delete "${b.name}"?`)) deleteMut.mutate(b.id); }}>
+                      <Button
-                        <Trash2 className="h-4 w-4" />
+                        variant="ghost"
+                        size="sm"
+                        className="gap-1.5 h-7 px-2"
+                        onClick={() => openStudents(b.id)}
+                      >
+                        <Users className="h-3.5 w-3.5" />
+                        {b.student_count} students
                       </Button>
                     </TableCell>
+                    <TableCell className="text-sm">
+                      {b.start_date && b.end_date
+                        ? `${b.start_date} — ${b.end_date}`
+                        : "—"}
+                    </TableCell>
+                    <TableCell>
+                      <Badge
+                        variant={b.status === "active" ? "default" : "secondary"}
+                        className="capitalize"
+                      >
+                        {b.status}
+                      </Badge>
+                    </TableCell>
+                    <TableCell>
+                      <div className="flex gap-1">
+                        <Button variant="ghost" size="icon" className="h-8 w-8" title="Manage students" onClick={() => openStudents(b.id)}>
+                          <UserPlus className="h-4 w-4" />
+                        </Button>
+                        <Button variant="ghost" size="icon" className="h-8 w-8" title="Edit" onClick={() => openEdit(b)}>
+                          <Pencil className="h-4 w-4" />
+                        </Button>
+                        <Button
+                          variant="ghost"
+                          size="icon"
+                          className="h-8 w-8 text-destructive"
+                          onClick={() => {
+                            if (window.confirm(`Delete "${b.name}"?`)) deleteMut.mutate(b.id);
+                          }}
+                        >
+                          <Trash2 className="h-4 w-4" />
+                        </Button>
+                      </div>
+                    </TableCell>
                   </TableRow>
                 ))}
               </TableBody>
@@ -100,34 +214,234 @@ export default function ClassroomsPage() {
         </Card>
       )}
 
+      {/* Create Dialog */}
       <Dialog open={createOpen} onOpenChange={setCreateOpen}>
         <DialogContent>
           <DialogHeader><DialogTitle>Create Classroom</DialogTitle></DialogHeader>
           <div className="space-y-4">
-            <div className="space-y-2"><Label>Name</Label><Input value={form.name} onChange={(e) => setForm(f => ({ ...f, name: e.target.value }))} placeholder="e.g. IELTS Prep Group A" /></div>
+            <div className="space-y-2">
+              <Label>Name</Label>
+              <Input value={form.name} onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))} placeholder="e.g. IELTS Prep Group A" />
+            </div>
             <div className="space-y-2">
               <Label>Course</Label>
-              <Select value={form.course_id} onValueChange={(v) => setForm(f => ({ ...f, course_id: v }))}>
+              <Select value={form.course_id} onValueChange={(v) => setForm((f) => ({ ...f, course_id: v }))}>
                 <SelectTrigger><SelectValue placeholder="Select course" /></SelectTrigger>
                 <SelectContent>
-                  {courses.map(c => <SelectItem key={c.id} value={String(c.id)}>{c.title || c.code}</SelectItem>)}
+                  {courses.map((c) => (
+                    <SelectItem key={c.id} value={String(c.id)}>{c.title || c.code}</SelectItem>
+                  ))}
                 </SelectContent>
               </Select>
             </div>
             <div className="grid grid-cols-2 gap-3">
-              <div className="space-y-2"><Label>Start Date</Label><Input type="date" value={form.start_date} onChange={(e) => setForm(f => ({ ...f, start_date: e.target.value }))} /></div>
+              <div className="space-y-2">
-              <div className="space-y-2"><Label>End Date</Label><Input type="date" value={form.end_date} onChange={(e) => setForm(f => ({ ...f, end_date: e.target.value }))} /></div>
+                <Label>Start Date</Label>
+                <Input type="date" value={form.start_date} onChange={(e) => setForm((f) => ({ ...f, start_date: e.target.value }))} />
+              </div>
+              <div className="space-y-2">
+                <Label>End Date</Label>
+                <Input type="date" value={form.end_date} onChange={(e) => setForm((f) => ({ ...f, end_date: e.target.value }))} />
+              </div>
             </div>
-            <div className="space-y-2"><Label>Max Students</Label><Input type="number" value={form.max_students} onChange={(e) => setForm(f => ({ ...f, max_students: e.target.value }))} placeholder="30" /></div>
           </div>
           <DialogFooter>
             <Button variant="outline" onClick={() => setCreateOpen(false)}>Cancel</Button>
-            <Button disabled={createMut.isPending || !form.name} onClick={() => createMut.mutate({ name: form.name, course_id: Number(form.course_id) || undefined, start_date: form.start_date || undefined, end_date: form.end_date || undefined, capacity: Number(form.max_students) || undefined } as never)}>
+            <Button
+              disabled={createMut.isPending || !form.name}
+              onClick={() =>
+                createMut.mutate({
+                  name: form.name,
+                  course_id: Number(form.course_id) || undefined,
+                  start_date: form.start_date || undefined,
+                  end_date: form.end_date || undefined,
+                } as never)
+              }
+            >
               {createMut.isPending ? "Creating..." : "Create"}
             </Button>
           </DialogFooter>
         </DialogContent>
       </Dialog>
+
+      {/* Edit Dialog */}
+      <Dialog open={editOpen} onOpenChange={setEditOpen}>
+        <DialogContent>
+          <DialogHeader><DialogTitle>Edit Classroom</DialogTitle></DialogHeader>
+          {editBatch && (
+            <div className="space-y-4">
+              <div className="space-y-2">
+                <Label>Name</Label>
+                <Input
+                  value={editBatch.name}
+                  onChange={(e) => setEditBatch((prev) => prev ? { ...prev, name: e.target.value } : prev)}
+                />
+              </div>
+              <div className="space-y-2">
+                <Label>Course</Label>
+                <Select
+                  value={editBatch.course_id}
+                  onValueChange={(v) => setEditBatch((prev) => prev ? { ...prev, course_id: v } : prev)}
+                >
+                  <SelectTrigger><SelectValue placeholder="Select course" /></SelectTrigger>
+                  <SelectContent>
+                    {courses.map((c) => (
+                      <SelectItem key={c.id} value={String(c.id)}>{c.title || c.code}</SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              </div>
+              <div className="grid grid-cols-2 gap-3">
+                <div className="space-y-2">
+                  <Label>Start Date</Label>
+                  <Input
+                    type="date"
+                    value={editBatch.start_date}
+                    onChange={(e) => setEditBatch((prev) => prev ? { ...prev, start_date: e.target.value } : prev)}
+                  />
+                </div>
+                <div className="space-y-2">
+                  <Label>End Date</Label>
+                  <Input
+                    type="date"
+                    value={editBatch.end_date}
+                    onChange={(e) => setEditBatch((prev) => prev ? { ...prev, end_date: e.target.value } : prev)}
+                  />
+                </div>
+              </div>
+            </div>
+          )}
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setEditOpen(false)}>Cancel</Button>
+            <Button
+              disabled={updateMut.isPending || !editBatch?.name}
+              onClick={() => {
+                if (!editBatch) return;
+                updateMut.mutate({
+                  id: editBatch.id,
+                  data: {
+                    name: editBatch.name,
+                    course_id: Number(editBatch.course_id) || undefined,
+                    start_date: editBatch.start_date || undefined,
+                    end_date: editBatch.end_date || undefined,
+                  },
+                });
+              }}
+            >
+              {updateMut.isPending ? "Saving..." : "Save"}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Students Management Dialog */}
+      <Dialog open={studentsOpen} onOpenChange={setStudentsOpen}>
+        <DialogContent className="max-w-lg">
+          <DialogHeader>
+            <DialogTitle>
+              Classroom Students — {currentBatch?.name}
+            </DialogTitle>
+            <DialogDescription>
+              {currentBatch?.course_name && `Course: ${currentBatch.course_name}`}
+              {currentBatch ? ` · ${currentBatch.student_count} student(s)` : ""}
+            </DialogDescription>
+          </DialogHeader>
+
+          <div className="max-h-[320px] overflow-y-auto space-y-1">
+            {currentBatch?.student_ids?.length === 0 ? (
+              <p className="text-sm text-muted-foreground text-center py-6">
+                No students in this classroom yet.
+              </p>
+            ) : (
+              allStudents
+                .filter((s) => batchStudentIds.has(s.id))
+                .map((s) => (
+                  <div key={s.id} className="flex items-center justify-between p-2 rounded hover:bg-muted/50">
+                    <div>
+                      <p className="text-sm font-medium">{s.name}</p>
+                      <p className="text-xs text-muted-foreground">{s.email}</p>
+                    </div>
+                    <Button
+                      variant="ghost"
+                      size="sm"
+                      className="h-7 text-destructive"
+                      onClick={() => {
+                        if (studentsBatchId && window.confirm(`Remove ${s.name} from this classroom?`))
+                          removeStudentMut.mutate({ batchId: studentsBatchId, studentIds: [s.id] });
+                      }}
+                    >
+                      <UserMinus className="h-3.5 w-3.5 mr-1" /> Remove
+                    </Button>
+                  </div>
+                ))
+            )}
+          </div>
+
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setStudentsOpen(false)}>Close</Button>
+            <Button
+              onClick={() => {
+                setSelectedAddIds([]);
+                setAddStudentsOpen(true);
+              }}
+            >
+              <UserPlus className="h-4 w-4 mr-1" /> Add Students
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Add Students to Batch Dialog */}
+      <Dialog open={addStudentsOpen} onOpenChange={setAddStudentsOpen}>
+        <DialogContent className="max-w-lg">
+          <DialogHeader>
+            <DialogTitle>Add Students to {currentBatch?.name}</DialogTitle>
+            <DialogDescription>
+              Select students to add to this classroom.
+            </DialogDescription>
+          </DialogHeader>
+
+          <div className="max-h-[320px] overflow-y-auto space-y-1">
+            {availableStudents.length === 0 ? (
+              <p className="text-sm text-muted-foreground text-center py-4">
+                All students are already in this classroom.
+              </p>
+            ) : (
+              availableStudents.map((s) => (
+                <label key={s.id} className="flex items-center gap-3 p-2 rounded hover:bg-muted/50 cursor-pointer">
+                  <Checkbox
+                    checked={selectedAddIds.includes(s.id)}
+                    onCheckedChange={() =>
+                      setSelectedAddIds((prev) =>
+                        prev.includes(s.id) ? prev.filter((x) => x !== s.id) : [...prev, s.id],
+                      )
+                    }
+                  />
+                  <div className="flex-1 min-w-0">
+                    <p className="text-sm font-medium truncate">{s.name}</p>
+                    <p className="text-xs text-muted-foreground">{s.email}</p>
+                  </div>
+                </label>
+              ))
+            )}
+          </div>
+
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setAddStudentsOpen(false)}>Cancel</Button>
+            <Button
+              disabled={addStudentsMut.isPending || selectedAddIds.length === 0}
+              onClick={() => {
+                if (studentsBatchId)
+                  addStudentsMut.mutate({ batchId: studentsBatchId, studentIds: selectedAddIds });
+              }}
+            >
+              {addStudentsMut.isPending
+                ? "Adding..."
+                : `Add ${selectedAddIds.length} Student(s)`}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

src/pages/EntitiesPage.tsx

@@ -5,91 +5,280 @@ import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
 import { Label } from "@/components/ui/label";
-import { Search, Plus, Building2, Trash2 } from "lucide-react";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
-import { useDepartments, useCreateDepartment, useDeleteDepartment } from "@/hooks/queries";
+import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
+import { Search, Plus, Building2, Trash2, Pencil, Users, Shield } from "lucide-react";
+import { entitiesService } from "@/services/entities.service";
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 import { useToast } from "@/hooks/use-toast";
 
+const ENTITY_TYPES = [
+  { value: "corporate", label: "Corporate" },
+  { value: "university", label: "University" },
+  { value: "school", label: "School" },
+  { value: "government", label: "Government" },
+  { value: "freelance", label: "Freelance" },
+];
+
 export default function EntitiesPage() {
   const [search, setSearch] = useState("");
   const [createOpen, setCreateOpen] = useState(false);
-  const [form, setForm] = useState({ name: "", code: "" });
+  const [editOpen, setEditOpen] = useState(false);
+  const [editEntity, setEditEntity] = useState<{ id: number; name: string; code: string; type: string } | null>(null);
+  const [form, setForm] = useState({ name: "", code: "", type: "" });
   const { toast } = useToast();
+  const qc = useQueryClient();
 
-  const deptsQ = useDepartments({ size: 200 });
+  const entitiesQ = useQuery({
-  const createMut = useCreateDepartment();
+    queryKey: ["entities"],
-  const deleteMut = useDeleteDepartment();
+    queryFn: () => entitiesService.list({ size: 200 }),
+  });
 
-  const depts = deptsQ.data?.items ?? deptsQ.data?.data ?? [];
+  const createMut = useMutation({
-  const departments = Array.isArray(depts) ? depts : [];
+    mutationFn: (data: { name: string; code?: string; type?: string }) =>
-  const filtered = departments.filter(d => d.name?.toLowerCase().includes(search.toLowerCase()));
+      entitiesService.create(data as Partial<import("@/types").Entity>),
-  const loading = deptsQ.isLoading;
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["entities"] });
+      setCreateOpen(false);
+      setForm({ name: "", code: "", type: "" });
+      toast({ title: "Entity created" });
+    },
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+  });
 
-  function handleCreate() {
+  const updateMut = useMutation({
-    createMut.mutate(
+    mutationFn: ({ id, data }: { id: number; data: Record<string, unknown> }) =>
-      { name: form.name, code: form.code || undefined },
+      entitiesService.update(id, data as Partial<import("@/types").Entity>),
-      {
+    onSuccess: () => {
-        onSuccess: () => { setCreateOpen(false); setForm({ name: "", code: "" }); toast({ title: "Department created" }); },
+      qc.invalidateQueries({ queryKey: ["entities"] });
-        onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+      setEditOpen(false);
-      },
+      toast({ title: "Entity updated" });
-    );
+    },
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+  });
+
+  const deleteMut = useMutation({
+    mutationFn: (id: number) => entitiesService.delete(id),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["entities"] });
+      toast({ title: "Deleted" });
+    },
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+  });
+
+  const raw = entitiesQ.data as unknown;
+  const entities: { id: number; name: string; code: string; type: string; user_count: number; role_count: number; active: boolean }[] = (() => {
+    if (!raw) return [];
+    if (Array.isArray(raw)) return raw as never[];
+    const r = raw as { items?: unknown; data?: unknown };
+    const arr = (r.items ?? r.data ?? []) as never[];
+    return Array.isArray(arr) ? arr : [];
+  })();
+
+  const filtered = entities.filter(
+    (e) =>
+      e.name?.toLowerCase().includes(search.toLowerCase()) ||
+      e.code?.toLowerCase().includes(search.toLowerCase()),
+  );
+  const loading = entitiesQ.isLoading;
+
+  function openEdit(e: typeof entities[0]) {
+    setEditEntity({ id: e.id, name: e.name, code: e.code, type: e.type });
+    setEditOpen(true);
   }
 
   return (
     <div className="space-y-6">
       <div className="flex items-center justify-between">
         <div>
-          <h1 className="text-2xl font-bold tracking-tight">Entities / Departments</h1>
+          <h1 className="text-2xl font-bold tracking-tight">Entities</h1>
-          <p className="text-muted-foreground">Manage organizational departments.</p>
+          <p className="text-muted-foreground">Manage organizations and entities on the platform.</p>
         </div>
         <Button size="sm" onClick={() => setCreateOpen(true)}>
-          <Plus className="h-4 w-4 mr-1" /> Create Department
+          <Plus className="h-4 w-4 mr-1" /> Create Entity
         </Button>
       </div>
 
-      <div className="relative max-w-sm">
+      <div className="flex gap-4 items-center">
-        <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
+        <div className="relative flex-1 max-w-sm">
-        <Input placeholder="Search departments..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
+          <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
+          <Input placeholder="Search entities..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
+        </div>
+        <Badge variant="secondary">{entities.length} total</Badge>
       </div>
 
       {loading ? (
-        <div className="flex items-center justify-center min-h-[300px]"><div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" /></div>
+        <div className="flex items-center justify-center min-h-[300px]">
-      ) : (
+          <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" />
-        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
-          {filtered.length === 0 && <p className="col-span-full text-center text-muted-foreground py-8">No departments found.</p>}
-          {filtered.map((d) => (
-            <Card key={d.id} className="border-0 shadow-sm">
-              <CardHeader className="flex flex-row items-center justify-between pb-2">
-                <CardTitle className="text-base flex items-center gap-2">
-                  <Building2 className="h-4 w-4 text-primary" />
-                  {d.name}
-                </CardTitle>
-                <Button size="sm" variant="ghost" className="text-destructive" onClick={() => { if (window.confirm(`Delete "${d.name}"?`)) deleteMut.mutate(d.id, { onSuccess: () => toast({ title: "Deleted" }), onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }) }); }}>
-                  <Trash2 className="h-4 w-4" />
-                </Button>
-              </CardHeader>
-              <CardContent>
-                <p className="text-sm text-muted-foreground">{d.code || "No code"}</p>
-              </CardContent>
-            </Card>
-          ))}
         </div>
+      ) : (
+        <Card className="border-0 shadow-sm">
+          <CardContent className="p-0">
+            <Table>
+              <TableHeader>
+                <TableRow>
+                  <TableHead>Name</TableHead>
+                  <TableHead>Code</TableHead>
+                  <TableHead>Type</TableHead>
+                  <TableHead>Users</TableHead>
+                  <TableHead>Roles</TableHead>
+                  <TableHead>Status</TableHead>
+                  <TableHead className="w-24" />
+                </TableRow>
+              </TableHeader>
+              <TableBody>
+                {filtered.length === 0 && (
+                  <TableRow>
+                    <TableCell colSpan={7} className="text-center text-muted-foreground py-8">
+                      No entities found.
+                    </TableCell>
+                  </TableRow>
+                )}
+                {filtered.map((e) => (
+                  <TableRow key={e.id}>
+                    <TableCell className="font-medium">
+                      <div className="flex items-center gap-2">
+                        <Building2 className="h-4 w-4 text-primary" />
+                        {e.name}
+                      </div>
+                    </TableCell>
+                    <TableCell><code className="text-xs bg-muted px-1.5 py-0.5 rounded">{e.code}</code></TableCell>
+                    <TableCell>
+                      <Badge variant="outline" className="capitalize">{e.type || "—"}</Badge>
+                    </TableCell>
+                    <TableCell>
+                      <Badge variant="secondary"><Users className="h-3 w-3 mr-1" />{e.user_count ?? 0}</Badge>
+                    </TableCell>
+                    <TableCell>
+                      <Badge variant="secondary"><Shield className="h-3 w-3 mr-1" />{e.role_count ?? 0}</Badge>
+                    </TableCell>
+                    <TableCell>
+                      <Badge variant={e.active !== false ? "default" : "secondary"}>
+                        {e.active !== false ? "Active" : "Inactive"}
+                      </Badge>
+                    </TableCell>
+                    <TableCell>
+                      <div className="flex gap-1">
+                        <Button variant="ghost" size="icon" className="h-8 w-8" onClick={() => openEdit(e)}>
+                          <Pencil className="h-4 w-4" />
+                        </Button>
+                        <Button
+                          variant="ghost"
+                          size="icon"
+                          className="h-8 w-8 text-destructive"
+                          onClick={() => {
+                            if (window.confirm(`Delete entity "${e.name}"?`))
+                              deleteMut.mutate(e.id);
+                          }}
+                        >
+                          <Trash2 className="h-4 w-4" />
+                        </Button>
+                      </div>
+                    </TableCell>
+                  </TableRow>
+                ))}
+              </TableBody>
+            </Table>
+          </CardContent>
+        </Card>
       )}
 
+      {/* Create Dialog */}
       <Dialog open={createOpen} onOpenChange={setCreateOpen}>
         <DialogContent>
-          <DialogHeader><DialogTitle>Create Department</DialogTitle></DialogHeader>
+          <DialogHeader><DialogTitle>Create Entity</DialogTitle></DialogHeader>
           <div className="space-y-4">
-            <div className="space-y-2"><Label>Name</Label><Input value={form.name} onChange={(e) => setForm(f => ({ ...f, name: e.target.value }))} placeholder="Department name" /></div>
+            <div className="space-y-2">
-            <div className="space-y-2"><Label>Code</Label><Input value={form.code} onChange={(e) => setForm(f => ({ ...f, code: e.target.value }))} placeholder="DEPT01" /></div>
+              <Label>Name</Label>
+              <Input value={form.name} onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))} placeholder="Organization name" />
+            </div>
+            <div className="space-y-2">
+              <Label>Code</Label>
+              <Input value={form.code} onChange={(e) => setForm((f) => ({ ...f, code: e.target.value }))} placeholder="ORG_CODE (auto-generated if empty)" />
+            </div>
+            <div className="space-y-2">
+              <Label>Type</Label>
+              <Select value={form.type} onValueChange={(v) => setForm((f) => ({ ...f, type: v }))}>
+                <SelectTrigger><SelectValue placeholder="Select type" /></SelectTrigger>
+                <SelectContent>
+                  {ENTITY_TYPES.map((t) => (
+                    <SelectItem key={t.value} value={t.value}>{t.label}</SelectItem>
+                  ))}
+                </SelectContent>
+              </Select>
+            </div>
           </div>
           <DialogFooter>
             <Button variant="outline" onClick={() => setCreateOpen(false)}>Cancel</Button>
-            <Button disabled={createMut.isPending || !form.name} onClick={handleCreate}>
+            <Button
+              disabled={createMut.isPending || !form.name.trim()}
+              onClick={() =>
+                createMut.mutate({
+                  name: form.name.trim(),
+                  code: form.code.trim() || undefined,
+                  type: form.type || undefined,
+                })
+              }
+            >
               {createMut.isPending ? "Creating..." : "Create"}
             </Button>
           </DialogFooter>
         </DialogContent>
       </Dialog>
+
+      {/* Edit Dialog */}
+      <Dialog open={editOpen} onOpenChange={setEditOpen}>
+        <DialogContent>
+          <DialogHeader><DialogTitle>Edit Entity</DialogTitle></DialogHeader>
+          {editEntity && (
+            <div className="space-y-4">
+              <div className="space-y-2">
+                <Label>Name</Label>
+                <Input
+                  value={editEntity.name}
+                  onChange={(e) => setEditEntity((prev) => prev ? { ...prev, name: e.target.value } : prev)}
+                />
+              </div>
+              <div className="space-y-2">
+                <Label>Code</Label>
+                <Input
+                  value={editEntity.code}
+                  onChange={(e) => setEditEntity((prev) => prev ? { ...prev, code: e.target.value } : prev)}
+                />
+              </div>
+              <div className="space-y-2">
+                <Label>Type</Label>
+                <Select
+                  value={editEntity.type}
+                  onValueChange={(v) => setEditEntity((prev) => prev ? { ...prev, type: v } : prev)}
+                >
+                  <SelectTrigger><SelectValue placeholder="Select type" /></SelectTrigger>
+                  <SelectContent>
+                    {ENTITY_TYPES.map((t) => (
+                      <SelectItem key={t.value} value={t.value}>{t.label}</SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              </div>
+            </div>
+          )}
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setEditOpen(false)}>Cancel</Button>
+            <Button
+              disabled={updateMut.isPending || !editEntity?.name.trim()}
+              onClick={() => {
+                if (!editEntity) return;
+                updateMut.mutate({
+                  id: editEntity.id,
+                  data: { name: editEntity.name, code: editEntity.code, type: editEntity.type },
+                });
+              }}
+            >
+              {updateMut.isPending ? "Saving..." : "Save"}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

src/pages/ExamPage.tsx

@@ -1,54 +0,0 @@
-import { Card, CardContent } from "@/components/ui/card";
-import { Badge } from "@/components/ui/badge";
-import { Button } from "@/components/ui/button";
-import { GraduationCap, Play, Sparkles } from "lucide-react";
-import AiTipBanner from "@/components/ai/AiTipBanner";
-
-export default function ExamPage() {
-  return (
-    <div className="flex flex-col items-center justify-center min-h-[70vh] gap-4 max-w-md mx-auto">
-      <AiTipBanner tip="Based on your practice history, focus on Reading Part 3 (sentence completion) — your accuracy there is 58% vs 82% average. Budget 20 min for the writing section." variant="recommendation" />
-
-      <Card className="border-0 shadow-sm w-full">
-        <CardContent className="p-8 text-center space-y-6">
-          <div className="mx-auto h-16 w-16 rounded-full bg-primary/10 flex items-center justify-center">
-            <GraduationCap className="h-8 w-8 text-primary" />
-          </div>
-          <div>
-            <h2 className="text-xl font-bold mb-1">Ready to Start?</h2>
-            <p className="text-muted-foreground text-sm">IELTS Academic Mock Exam</p>
-          </div>
-          <div className="space-y-2">
-            <div className="flex justify-between text-sm">
-              <span className="text-muted-foreground">Student</span>
-              <span className="font-medium">Sarah Johnson</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span className="text-muted-foreground">Level</span>
-              <Badge variant="outline">B2</Badge>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span className="text-muted-foreground">Modules</span>
-              <span className="font-medium">4</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span className="text-muted-foreground">Duration</span>
-              <span className="font-medium">180 min</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span className="text-muted-foreground">Mode</span>
-              <Badge variant="secondary">Practice</Badge>
-            </div>
-          </div>
-          <div className="rounded-lg bg-primary/5 border border-primary/20 p-3 text-left">
-            <p className="text-xs font-semibold text-primary flex items-center gap-1 mb-1"><Sparkles className="h-3 w-3" /> AI Pre-Exam Tip</p>
-            <p className="text-xs text-muted-foreground">Your last mock scored 7.5. To target 8.0, focus on time management in Writing Task 2 — you spent 45 min last time vs recommended 40 min.</p>
-          </div>
-          <Button className="w-full" size="lg">
-            <Play className="h-4 w-4 mr-2" /> Begin Exam
-          </Button>
-        </CardContent>
-      </Card>
-    </div>
-  );
-}

src/pages/ExamsListPage.tsx

@@ -1,20 +1,50 @@
 import { useState } from "react";
+import { useQuery } from "@tanstack/react-query";
 import { Card, CardContent } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
-import { Search } from "lucide-react";
+import { Search, Plus, FileText, Clock } from "lucide-react";
 import { useInstitutionalExamSessions } from "@/hooks/queries";
+import { api } from "@/lib/api-client";
+import { Link } from "react-router-dom";
+
+interface CustomExam {
+  id: number;
+  title: string;
+  status: string;
+  total_time_min: number;
+  sections: { id: number; title: string; skill: string }[];
+  teacher_id: number | null;
+  template_id: number | null;
+  description: string;
+}
+
+const statusColors: Record<string, "default" | "secondary" | "outline" | "destructive"> = {
+  published: "default",
+  draft: "secondary",
+  archived: "outline",
+};
 
 export default function ExamsListPage() {
   const [search, setSearch] = useState("");
-  const sessionsQ = useInstitutionalExamSessions();
+  const [tab, setTab] = useState<"custom" | "sessions">("custom");
-  const items = sessionsQ.data?.data ?? sessionsQ.data?.items ?? [];
-  const sessions = Array.isArray(items) ? items : [];
 
+  const customQ = useQuery({
+    queryKey: ["custom-exams", search],
+    queryFn: () => api.get<{ items: CustomExam[]; total: number }>(`/exam/custom/list?search=${encodeURIComponent(search)}&per_page=50`),
+  });
+
+  const sessionsQ = useInstitutionalExamSessions();
+  const sessionItems = sessionsQ.data?.items ?? [];
+  const sessions: Record<string, string>[] = Array.isArray(sessionItems)
+    ? (sessionItems as unknown as Record<string, string>[])
+    : [];
+
+  const customExams = customQ.data?.items ?? [];
   const q = search.toLowerCase();
-  const filtered = sessions.filter(s =>
+  const filteredSessions = sessions.filter((s) =>
     s.name?.toLowerCase().includes(q) || s.course_name?.toLowerCase().includes(q),
   );
 
@@ -23,8 +53,20 @@ export default function ExamsListPage() {
       <div className="flex items-center justify-between">
         <div>
           <h1 className="text-2xl font-bold tracking-tight">Exams List</h1>
-          <p className="text-muted-foreground">Browse and manage all exam sessions.</p>
+          <p className="text-muted-foreground">Browse and manage all exams and exam sessions.</p>
         </div>
+        <Link to="/admin/exam/create">
+          <Button><Plus className="h-4 w-4 mr-2" /> Create Exam</Button>
+        </Link>
+      </div>
+
+      <div className="flex gap-2">
+        <Button variant={tab === "custom" ? "default" : "outline"} size="sm" onClick={() => setTab("custom")}>
+          <FileText className="h-4 w-4 mr-1" /> Custom Exams ({customExams.length})
+        </Button>
+        <Button variant={tab === "sessions" ? "default" : "outline"} size="sm" onClick={() => setTab("sessions")}>
+          <Clock className="h-4 w-4 mr-1" /> Exam Sessions ({filteredSessions.length})
+        </Button>
       </div>
 
       <div className="relative max-w-sm">
@@ -32,44 +74,92 @@ export default function ExamsListPage() {
         <Input placeholder="Search exams..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
       </div>
 
-      {sessionsQ.isLoading ? (
+      {tab === "custom" && (
-        <div className="flex items-center justify-center min-h-[300px]"><div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" /></div>
+        customQ.isLoading ? (
-      ) : (
+          <div className="flex items-center justify-center min-h-[200px]"><div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" /></div>
-        <Card className="border-0 shadow-sm">
+        ) : (
-          <CardContent className="p-0">
+          <Card className="border-0 shadow-sm">
-            <Table>
+            <CardContent className="p-0">
-              <TableHeader>
+              <Table>
-                <TableRow>
+                <TableHeader>
-                  <TableHead>#</TableHead>
+                  <TableRow>
-                  <TableHead>Name</TableHead>
+                    <TableHead className="w-12">#</TableHead>
-                  <TableHead>Course</TableHead>
+                    <TableHead>Title</TableHead>
-                  <TableHead>Batch</TableHead>
+                    <TableHead>Modules</TableHead>
-                  <TableHead>Start</TableHead>
+                    <TableHead>Duration</TableHead>
-                  <TableHead>End</TableHead>
+                    <TableHead>Status</TableHead>
-                  <TableHead>State</TableHead>
-                </TableRow>
-              </TableHeader>
-              <TableBody>
-                {filtered.length === 0 && (
-                  <TableRow><TableCell colSpan={7} className="text-center text-muted-foreground py-8">No exam sessions found.</TableCell></TableRow>
-                )}
-                {filtered.map((s, i) => (
-                  <TableRow key={s.id}>
-                    <TableCell>{i + 1}</TableCell>
-                    <TableCell className="font-medium">{s.name}</TableCell>
-                    <TableCell>{s.course_name || "—"}</TableCell>
-                    <TableCell>{s.batch_name || "—"}</TableCell>
-                    <TableCell>{s.start_date || "—"}</TableCell>
-                    <TableCell>{s.end_date || "—"}</TableCell>
-                    <TableCell>
-                      <Badge variant={s.state === "done" ? "default" : s.state === "schedule" ? "secondary" : "outline"} className="capitalize">{s.state}</Badge>
-                    </TableCell>
                   </TableRow>
-                ))}
+                </TableHeader>
-              </TableBody>
+                <TableBody>
-            </Table>
+                  {customExams.length === 0 && (
-          </CardContent>
+                    <TableRow><TableCell colSpan={5} className="text-center text-muted-foreground py-8">No custom exams found. Submit one from the Generation page.</TableCell></TableRow>
-        </Card>
+                  )}
+                  {customExams.map((exam, i) => (
+                    <TableRow key={exam.id}>
+                      <TableCell className="text-muted-foreground">{exam.id}</TableCell>
+                      <TableCell className="font-medium">{exam.title}</TableCell>
+                      <TableCell>
+                        <div className="flex gap-1 flex-wrap">
+                          {exam.sections.length > 0
+                            ? exam.sections.map((s) => (
+                                <Badge key={s.id} variant="outline" className="text-xs capitalize">{s.skill || s.title}</Badge>
+                              ))
+                            : <span className="text-muted-foreground text-xs">—</span>}
+                        </div>
+                      </TableCell>
+                      <TableCell>{exam.total_time_min ? `${exam.total_time_min} min` : "—"}</TableCell>
+                      <TableCell>
+                        <Badge variant={statusColors[exam.status] ?? "outline"} className="capitalize">{exam.status}</Badge>
+                      </TableCell>
+                    </TableRow>
+                  ))}
+                </TableBody>
+              </Table>
+            </CardContent>
+          </Card>
+        )
+      )}
+
+      {tab === "sessions" && (
+        sessionsQ.isLoading ? (
+          <div className="flex items-center justify-center min-h-[200px]"><div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" /></div>
+        ) : (
+          <Card className="border-0 shadow-sm">
+            <CardContent className="p-0">
+              <Table>
+                <TableHeader>
+                  <TableRow>
+                    <TableHead>#</TableHead>
+                    <TableHead>Name</TableHead>
+                    <TableHead>Course</TableHead>
+                    <TableHead>Batch</TableHead>
+                    <TableHead>Start</TableHead>
+                    <TableHead>End</TableHead>
+                    <TableHead>State</TableHead>
+                  </TableRow>
+                </TableHeader>
+                <TableBody>
+                  {filteredSessions.length === 0 && (
+                    <TableRow><TableCell colSpan={7} className="text-center text-muted-foreground py-8">No exam sessions found.</TableCell></TableRow>
+                  )}
+                  {filteredSessions.map((s, i) => (
+                    <TableRow key={s.id}>
+                      <TableCell>{i + 1}</TableCell>
+                      <TableCell className="font-medium">{s.name}</TableCell>
+                      <TableCell>{s.course_name || "—"}</TableCell>
+                      <TableCell>{s.batch_name || "—"}</TableCell>
+                      <TableCell>{s.start_date || "—"}</TableCell>
+                      <TableCell>{s.end_date || "—"}</TableCell>
+                      <TableCell>
+                        <Badge variant={s.state === "done" ? "default" : s.state === "schedule" ? "secondary" : "outline"} className="capitalize">{s.state}</Badge>
+                      </TableCell>
+                    </TableRow>
+                  ))}
+                </TableBody>
+              </Table>
+            </CardContent>
+          </Card>
+        )
       )}
     </div>
   );

src/pages/ForgotPassword.tsx

@@ -48,7 +48,7 @@ export default function ForgotPassword() {
             ) : null}
             <div className="mt-6 text-center">
               <Link to="/login" className="inline-flex items-center gap-1 text-sm text-primary hover:underline">
-                <ArrowLeft className="h-3 w-3" /> Back to sign in
+                <ArrowLeft className="h-3 w-3 rtl:rotate-180" /> Back to sign in
               </Link>
             </div>
           </CardContent>

src/pages/GrammarPage.tsx

@@ -1,34 +1,122 @@
 import { useState } from "react";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Progress } from "@/components/ui/progress";
 import { Badge } from "@/components/ui/badge";
 import { Switch } from "@/components/ui/switch";
 import { Label } from "@/components/ui/label";
-import { CheckCircle, PenTool, Sparkles } from "lucide-react";
+import { Input } from "@/components/ui/input";
+import { Textarea } from "@/components/ui/textarea";
+import { Button } from "@/components/ui/button";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import {
+  CheckCircle,
+  Plus,
+  Search,
+  Trash2,
+  Loader2,
+  Sparkles,
+  Circle,
+} from "lucide-react";
 import AiTipBanner from "@/components/ai/AiTipBanner";
+import { useToast } from "@/hooks/use-toast";
+import { trainingService, type CefrLevel } from "@/services/training.service";
 
-const grammarItems = [
+const LEVELS: (CefrLevel | "all")[] = ["all", "A1", "A2", "B1", "B2", "C1", "C2"];
-  { rule: "Conditional Sentences (Type 2 & 3)", description: "If + past simple / past perfect for hypothetical situations", level: "B2", completed: true },
-  { rule: "Passive Voice in Academic Writing", description: "Using passive constructions in formal reports", level: "B2", completed: false },
-  { rule: "Relative Clauses", description: "Defining vs non-defining relative clauses", level: "B1", completed: true },
-  { rule: "Subject-Verb Agreement", description: "Complex subjects with prepositional phrases", level: "B1", completed: false },
-  { rule: "Modal Verbs for Speculation", description: "Must have, could have, might have + past participle", level: "C1", completed: false },
-  { rule: "Reported Speech", description: "Tense changes and time references in indirect speech", level: "B2", completed: true },
-];
 
 export default function GrammarPage() {
-  const [showCompleted, setShowCompleted] = useState(false);
+  const { toast } = useToast();
-  const completed = grammarItems.filter(g => g.completed).length;
+  const qc = useQueryClient();
-  const filtered = showCompleted ? grammarItems : grammarItems.filter(g => !g.completed);
+  const [showCompleted, setShowCompleted] = useState(true);
+  const [levelFilter, setLevelFilter] = useState<string>("all");
+  const [search, setSearch] = useState("");
+  const [createOpen, setCreateOpen] = useState(false);
+  const [form, setForm] = useState({
+    name: "",
+    description: "",
+    example: "",
+    level: "B1" as CefrLevel,
+    category: "general",
+  });
+
+  const listQ = useQuery({
+    queryKey: ["training-grammar", levelFilter, search],
+    queryFn: () =>
+      trainingService.listGrammar({
+        ...(levelFilter !== "all" ? { level: levelFilter } : {}),
+        ...(search ? { search } : {}),
+      }),
+  });
+
+  const items = listQ.data?.items ?? [];
+  const summary = listQ.data?.summary;
+  const filtered = showCompleted ? items : items.filter((g) => !g.completed);
+
+  const createMut = useMutation({
+    mutationFn: trainingService.createGrammar,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["training-grammar"] });
+      setCreateOpen(false);
+      setForm({
+        name: "",
+        description: "",
+        example: "",
+        level: "B1",
+        category: "general",
+      });
+      toast({ title: "Rule added" });
+    },
+    onError: (err: unknown) => {
+      const msg =
+        err && typeof err === "object" && "message" in err
+          ? String((err as { message: unknown }).message)
+          : "Failed to add rule";
+      toast({ title: msg, variant: "destructive" });
+    },
+  });
+
+  const delMut = useMutation({
+    mutationFn: trainingService.deleteGrammar,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["training-grammar"] });
+      toast({ title: "Rule deleted" });
+    },
+  });
+
+  const progressMut = useMutation({
+    mutationFn: ({ id, completed }: { id: number; completed: boolean }) =>
+      trainingService.setGrammarProgress(id, { completed }),
+    onSuccess: () => qc.invalidateQueries({ queryKey: ["training-grammar"] }),
+  });
 
   return (
     <div className="space-y-6">
-      <div>
+      <div className="flex items-center justify-between">
-        <h1 className="text-2xl font-bold tracking-tight">Grammar Training</h1>
+        <div>
-        <p className="text-muted-foreground">Master grammar rules essential for IELTS.</p>
+          <h1 className="text-2xl font-bold tracking-tight">Grammar Training</h1>
+          <p className="text-muted-foreground">
+            Manage the grammar-rule library and track mastery by CEFR level.
+          </p>
+        </div>
+        <Button size="sm" onClick={() => setCreateOpen(true)}>
+          <Plus className="h-4 w-4 mr-1" /> Add Rule
+        </Button>
       </div>
 
-      <AiTipBanner tip="You've completed 50% of grammar topics. Focus on Passive Voice next — it appears in 73% of IELTS Writing Task 1 questions and will boost your band score." variant="recommendation" />
+      <AiTipBanner context="grammar" variant="recommendation" />
 
       <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
         <div className="lg:col-span-2 space-y-4">
@@ -36,31 +124,104 @@ export default function GrammarPage() {
             <CardHeader className="pb-3">
               <div className="flex items-center justify-between">
                 <CardTitle className="text-base">Progress</CardTitle>
-                <span className="text-sm text-muted-foreground">{completed}/{grammarItems.length} completed</span>
+                <span className="text-sm text-muted-foreground">
+                  {summary
+                    ? `${summary.completed}/${summary.total} completed (${summary.completion_rate}%)`
+                    : "—"}
+                </span>
               </div>
             </CardHeader>
             <CardContent>
-              <Progress value={(completed / grammarItems.length) * 100} className="h-3" />
+              <Progress value={summary?.completion_rate ?? 0} className="h-3" />
             </CardContent>
           </Card>
 
-          <div className="flex items-center gap-2">
+          <div className="flex flex-wrap gap-3 items-center">
-            <Switch id="show" checked={showCompleted} onCheckedChange={setShowCompleted} />
+            <div className="relative flex-1 max-w-sm">
-            <Label htmlFor="show" className="text-sm">Show completed</Label>
+              <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
+              <Input
+                placeholder="Search rules…"
+                className="pl-9"
+                value={search}
+                onChange={(e) => setSearch(e.target.value)}
+              />
+            </div>
+            <Select value={levelFilter} onValueChange={setLevelFilter}>
+              <SelectTrigger className="w-[110px]">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                {LEVELS.map((l) => (
+                  <SelectItem key={l} value={l}>
+                    {l === "all" ? "All levels" : l}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+            <div className="flex items-center gap-2">
+              <Switch
+                id="show-g"
+                checked={showCompleted}
+                onCheckedChange={setShowCompleted}
+              />
+              <Label htmlFor="show-g" className="text-sm">
+                Show completed
+              </Label>
+            </div>
           </div>
 
           <div className="space-y-2">
+            {listQ.isLoading && (
+              <div className="py-8 text-center text-muted-foreground">
+                <Loader2 className="h-5 w-5 animate-spin mx-auto" />
+              </div>
+            )}
+            {!listQ.isLoading && filtered.length === 0 && (
+              <Card className="border-0 shadow-sm">
+                <CardContent className="text-center text-muted-foreground py-8">
+                  No grammar rules match.
+                </CardContent>
+              </Card>
+            )}
             {filtered.map((g) => (
-              <Card key={g.rule} className="border-0 shadow-sm">
+              <Card key={g.id} className="border-0 shadow-sm">
-                <CardContent className="p-4 flex items-center justify-between">
+                <CardContent className="p-4 flex items-center justify-between gap-3">
-                  <div className="flex items-center gap-3">
+                  <button
-                    {g.completed && <CheckCircle className="h-4 w-4 text-success shrink-0" />}
+                    onClick={() =>
-                    <div>
+                      progressMut.mutate({ id: g.id, completed: !g.completed })
-                      <p className="font-semibold text-sm">{g.rule}</p>
+                    }
-                      <p className="text-xs text-muted-foreground">{g.description}</p>
+                    className="shrink-0 rounded-full p-0.5 hover:bg-muted transition"
-                    </div>
+                    aria-label={g.completed ? "Mark incomplete" : "Mark complete"}
+                  >
+                    {g.completed ? (
+                      <CheckCircle className="h-5 w-5 text-green-600" />
+                    ) : (
+                      <Circle className="h-5 w-5 text-muted-foreground" />
+                    )}
+                  </button>
+                  <div className="flex-1 min-w-0">
+                    <p className="font-semibold text-sm">{g.name}</p>
+                    <p className="text-xs text-muted-foreground">{g.description}</p>
+                    {g.example && (
+                      <p className="text-xs italic text-muted-foreground mt-0.5">
+                        e.g. {g.example}
+                      </p>
+                    )}
+                  </div>
+                  <div className="flex items-center gap-2 shrink-0">
+                    <Badge variant="outline">{g.level}</Badge>
+                    <Badge variant="secondary" className="text-xs">
+                      {g.category}
+                    </Badge>
+                    <Button
+                      variant="ghost"
+                      size="icon"
+                      className="h-7 w-7 text-destructive"
+                      onClick={() => delMut.mutate(g.id)}
+                    >
+                      <Trash2 className="h-4 w-4" />
+                    </Button>
                   </div>
-                  <Badge variant="outline">{g.level}</Badge>
                 </CardContent>
               </Card>
             ))}
@@ -70,25 +231,133 @@ export default function GrammarPage() {
         <div className="space-y-4">
           <Card className="border-0 shadow-sm">
             <CardHeader className="pb-3">
-              <CardTitle className="text-base flex items-center gap-2"><Sparkles className="h-4 w-4 text-primary" /> AI Recommendations</CardTitle>
+              <CardTitle className="text-base flex items-center gap-2">
+                <Sparkles className="h-4 w-4 text-primary" /> AI Recommendations
+              </CardTitle>
             </CardHeader>
             <CardContent>
               <ul className="space-y-2">
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Practice passive voice transformations — high exam frequency</li>
+                <li className="text-sm text-muted-foreground flex items-start gap-2">
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Review modal verbs for IELTS Writing Task 1</li>
+                  <span className="text-primary font-bold">•</span>
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Focus on complex sentence structures for C1 readiness</li>
+                  Practice passive-voice transformations — high exam frequency.
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Your conditional sentences are strong — try advanced mixed conditionals</li>
+                </li>
+                <li className="text-sm text-muted-foreground flex items-start gap-2">
+                  <span className="text-primary font-bold">•</span>
+                  Review modal verbs for IELTS Writing Task 1.
+                </li>
+                <li className="text-sm text-muted-foreground flex items-start gap-2">
+                  <span className="text-primary font-bold">•</span>
+                  Focus on complex sentences for C1 readiness.
+                </li>
               </ul>
             </CardContent>
           </Card>
-          <Card className="border-0 shadow-sm border-primary/20 bg-primary/5">
+          {summary && (
-            <CardContent className="p-4">
+            <Card className="border-0 shadow-sm border-primary/20 bg-primary/5">
-              <p className="text-xs font-semibold text-primary flex items-center gap-1 mb-2"><Sparkles className="h-3 w-3" /> AI Study Plan</p>
+              <CardContent className="p-4">
-              <p className="text-sm text-muted-foreground">Based on your progress, complete Passive Voice and Subject-Verb Agreement this week. At your current pace, you'll finish all B2 grammar by April 15.</p>
+                <p className="text-xs font-semibold text-primary flex items-center gap-1 mb-2">
-            </CardContent>
+                  <Sparkles className="h-3 w-3" /> AI Study Plan
-          </Card>
+                </p>
+                <p className="text-sm text-muted-foreground">
+                  {summary.remaining > 0
+                    ? `Finish the remaining ${summary.remaining} rule(s) at one per day to stay on track.`
+                    : "You've mastered every active rule in the library."}
+                </p>
+              </CardContent>
+            </Card>
+          )}
         </div>
       </div>
+
+      <Dialog open={createOpen} onOpenChange={setCreateOpen}>
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>Add Grammar Rule</DialogTitle>
+          </DialogHeader>
+          <div className="space-y-3">
+            <div className="space-y-2">
+              <Label>Rule name</Label>
+              <Input
+                value={form.name}
+                onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))}
+                placeholder="e.g. Present Perfect vs Past Simple"
+              />
+            </div>
+            <div className="space-y-2">
+              <Label>Description</Label>
+              <Textarea
+                value={form.description}
+                onChange={(e) =>
+                  setForm((f) => ({ ...f, description: e.target.value }))
+                }
+                placeholder="When and how this rule applies"
+              />
+            </div>
+            <div className="space-y-2">
+              <Label>Example (optional)</Label>
+              <Textarea
+                value={form.example}
+                onChange={(e) => setForm((f) => ({ ...f, example: e.target.value }))}
+                placeholder="A sample sentence"
+              />
+            </div>
+            <div className="grid grid-cols-2 gap-3">
+              <div className="space-y-2">
+                <Label>CEFR level</Label>
+                <Select
+                  value={form.level}
+                  onValueChange={(v) =>
+                    setForm((f) => ({ ...f, level: v as CefrLevel }))
+                  }
+                >
+                  <SelectTrigger>
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    {(LEVELS.filter((l) => l !== "all") as CefrLevel[]).map(
+                      (l) => (
+                        <SelectItem key={l} value={l}>
+                          {l}
+                        </SelectItem>
+                      ),
+                    )}
+                  </SelectContent>
+                </Select>
+              </div>
+              <div className="space-y-2">
+                <Label>Category</Label>
+                <Input
+                  value={form.category}
+                  onChange={(e) =>
+                    setForm((f) => ({ ...f, category: e.target.value }))
+                  }
+                />
+              </div>
+            </div>
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setCreateOpen(false)}>
+              Cancel
+            </Button>
+            <Button
+              disabled={
+                !form.name.trim() ||
+                !form.description.trim() ||
+                createMut.isPending
+              }
+              onClick={() => createMut.mutate(form)}
+            >
+              {createMut.isPending ? (
+                <>
+                  <Loader2 className="h-4 w-4 mr-1 animate-spin" /> Adding…
+                </>
+              ) : (
+                "Add"
+              )}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

src/pages/Index.tsx

@@ -1,14 +0,0 @@
-// Update this page (the content is just a fallback if you fail to update the page)
-
-const Index = () => {
-  return (
-    <div className="flex min-h-screen items-center justify-center bg-background">
-      <div className="text-center">
-        <h1 className="mb-4 text-4xl font-bold">Welcome to Your Blank App</h1>
-        <p className="text-xl text-muted-foreground">Start building your amazing project here!</p>
-      </div>
-    </div>
-  );
-};
-
-export default Index;

src/pages/Login.tsx

@@ -1,5 +1,6 @@
 import { useState } from "react";
 import { Link, useNavigate } from "react-router-dom";
+import { useTranslation } from "react-i18next";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
@@ -10,6 +11,7 @@ import { useAuth } from "@/contexts/AuthContext";
 import { useToast } from "@/hooks/use-toast";
 import { ApiError } from "@/lib/api-client";
 import type { UserRole } from "@/types/auth";
+import { LanguageToggle } from "@/components/LanguageToggle";
 
 /** Keep in sync with `ProtectedRoute` post-login targets */
 function getRoleDashboard(role: string): string {
@@ -48,11 +50,16 @@ export default function Login() {
   const navigate = useNavigate();
   const { login } = useAuth();
   const { toast } = useToast();
+  const { t } = useTranslation();
 
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
     if (!email || !password) {
-      toast({ title: "Error", description: "Please enter email and password", variant: "destructive" });
+      toast({
+        title: t("auth.errorTitle"),
+        description: t("auth.missingCredentials"),
+        variant: "destructive",
+      });
       return;
     }
 
@@ -61,7 +68,11 @@ export default function Login() {
       const user = await login(email, password);
       navigate(getRoleDashboard(user.user_type));
     } catch (err: unknown) {
-      toast({ title: "Login Failed", description: loginErrorMessage(err), variant: "destructive" });
+      toast({
+        title: t("auth.loginFailedTitle"),
+        description: loginErrorMessage(err),
+        variant: "destructive",
+      });
     } finally {
       setLoading(false);
     }
@@ -69,35 +80,39 @@ export default function Login() {
 
   return (
     <div className="min-h-screen flex items-center justify-center bg-background p-4">
+      <div className="absolute top-4 right-4">
+        <LanguageToggle />
+      </div>
       <div className="w-full max-w-md">
-        <div className="flex items-center justify-center gap-3 mb-8">
+        <div className="flex items-center justify-center mb-8">
-          <img src="/logo.png" alt="EnCoach" className="h-12 w-12 rounded-xl object-contain" />
+          <img
-          <h1 className="text-2xl font-bold tracking-tight">
+            src="/logo.png"
-            <span className="text-[hsl(42,40%,62%)]">En</span>
+            alt="EnCoach — Unlock your potential with AI powered platform"
-            <span className="text-[hsl(240,20%,30%)]">Coach</span>
+            className="h-36 w-auto object-contain"
-          </h1>
+          />
         </div>
 
         <Card className="shadow-lg border-0 bg-card">
           <CardHeader className="text-center pb-4">
-            <CardTitle className="text-xl">Welcome back</CardTitle>
+            <CardTitle className="text-xl">{t("auth.welcomeBack")}</CardTitle>
-            <CardDescription>Sign in to your account to continue</CardDescription>
+            <CardDescription>{t("auth.signInDescription")}</CardDescription>
           </CardHeader>
           <CardContent>
             <form onSubmit={handleSubmit} className="space-y-4">
               <div className="space-y-2">
-                <Label htmlFor="email">Email</Label>
+                <Label htmlFor="email">{t("auth.email")}</Label>
                 <Input
                   id="email"
-                  type="email"
+                  type="text"
-                  placeholder="you@example.com"
+                  placeholder={t("auth.emailPlaceholder")}
                   value={email}
                   onChange={(e) => setEmail(e.target.value)}
                   disabled={loading}
+                  dir="ltr"
                 />
               </div>
               <div className="space-y-2">
-                <Label htmlFor="password">Password</Label>
+                <Label htmlFor="password">{t("auth.password")}</Label>
                 <div className="relative">
                   <Input
                     id="password"
@@ -106,11 +121,13 @@ export default function Login() {
                     value={password}
                     onChange={(e) => setPassword(e.target.value)}
                     disabled={loading}
+                    dir="ltr"
                   />
                   <button
                     type="button"
                     onClick={() => setShowPassword(!showPassword)}
-                    className="absolute right-3 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
+                    aria-label={showPassword ? t("auth.password") : t("auth.password")}
+                    className="absolute end-3 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
                   >
                     {showPassword ? <EyeOff className="h-4 w-4" /> : <Eye className="h-4 w-4" />}
                   </button>
@@ -119,19 +136,25 @@ export default function Login() {
               <div className="flex items-center justify-between">
                 <div className="flex items-center gap-2">
                   <Checkbox id="remember" />
-                  <Label htmlFor="remember" className="text-sm font-normal cursor-pointer">Remember me</Label>
+                  <Label htmlFor="remember" className="text-sm font-normal cursor-pointer">
+                    {t("auth.rememberMe")}
+                  </Label>
                 </div>
-                <Link to="/forgot-password" className="text-sm text-primary hover:underline">Forgot password?</Link>
+                <Link to="/forgot-password" className="text-sm text-primary hover:underline">
+                  {t("auth.forgotPassword")}
+                </Link>
               </div>
               <Button type="submit" className="w-full" disabled={loading}>
-                {loading && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
+                {loading && <Loader2 className="me-2 h-4 w-4 animate-spin" />}
-                Sign in
+                {t("auth.signIn")}
               </Button>
             </form>
 
             <p className="mt-6 text-center text-sm text-muted-foreground">
-              Don't have an account?{" "}
+              {t("auth.needAccount")}{" "}
-              <Link to="/register" className="text-primary font-medium hover:underline">Sign up</Link>
+              <Link to="/register" className="text-primary font-medium hover:underline">
+                {t("auth.signUp")}
+              </Link>
             </p>
           </CardContent>
         </Card>

src/pages/NotFound.tsx

@@ -1,8 +1,10 @@
 import { useLocation } from "react-router-dom";
 import { useEffect } from "react";
+import { useTranslation } from "react-i18next";
 
 const NotFound = () => {
   const location = useLocation();
+  const { t } = useTranslation();
 
   useEffect(() => {
     console.error("404 Error: User attempted to access non-existent route:", location.pathname);
@@ -11,10 +13,10 @@ const NotFound = () => {
   return (
     <div className="flex min-h-screen items-center justify-center bg-muted">
       <div className="text-center">
-        <h1 className="mb-4 text-4xl font-bold">404</h1>
+        <h1 className="mb-4 text-4xl font-bold">{t("errors.notFoundCode")}</h1>
-        <p className="mb-4 text-xl text-muted-foreground">Oops! Page not found</p>
+        <p className="mb-4 text-xl text-muted-foreground">{t("errors.notFoundMessage")}</p>
         <a href="/" className="text-primary underline hover:text-primary/90">
-          Return to Home
+          {t("errors.returnHome")}
         </a>
       </div>
     </div>

src/pages/PaymentRecordPage.tsx

@@ -1,58 +1,105 @@
-import { useState } from "react";
+import { useQuery } from "@tanstack/react-query";
 import { Card, CardContent } from "@/components/ui/card";
-import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogTrigger } from "@/components/ui/dialog";
+import {
-import { Label } from "@/components/ui/label";
+  Table,
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+  TableBody,
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
+  TableCell,
-import { Plus, Download } from "lucide-react";
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+import { Download, Loader2 } from "lucide-react";
 import AiTipBanner from "@/components/ai/AiTipBanner";
 import AiReportNarrative from "@/components/ai/AiReportNarrative";
-
+import { paymentsService } from "@/services/payments.service";
-const payments = [
-  { id: "PAY-001", corporate: "Acme Corp", manager: "John Admin", amount: 5000, currency: "USD", paid: true, date: "2025-01-15", type: "Corporate" },
-  { id: "PAY-002", corporate: "Global Ltd", manager: "HR Global", amount: 8500, currency: "USD", paid: true, date: "2025-02-01", type: "Corporate" },
-  { id: "PAY-003", corporate: "Tech Co", manager: "Tech Admin", amount: 2000, currency: "USD", paid: false, date: "2025-03-01", type: "Commission" },
-];
-
-const paymobOrders = [
-  { id: "PMB-1001", status: "Paid", user: "Sarah Johnson", email: "sarah.j@email.com", amount: 199.00 },
-  { id: "PMB-1002", status: "Pending", user: "Ahmed Hassan", email: "ahmed.h@email.com", amount: 149.00 },
-  { id: "PMB-1003", status: "Paid", user: "Li Wei", email: "li.w@email.com", amount: 199.00 },
-  { id: "PMB-1004", status: "Failed", user: "Emma Brown", email: "emma.b@email.com", amount: 99.00 },
-];
 
 export default function PaymentRecordPage() {
+  const { data, isLoading } = useQuery({
+    queryKey: ["payment-records"],
+    queryFn: () => paymentsService.list(),
+  });
+
+  const { data: paymobData } = useQuery({
+    queryKey: ["paymob-orders"],
+    queryFn: () => paymentsService.paymobOrders(),
+  });
+
+  const payments = data?.items ?? [];
+  const totals = data?.totals;
+
+  const handleExport = () => {
+    if (!payments.length) return;
+    const header = ["Ref", "Student", "Course", "Product", "Amount", "Currency", "State", "Paid", "Date"];
+    const rows = payments.map((p) => [
+      p.ref,
+      p.student_name,
+      p.course_name,
+      p.product_name,
+      p.amount.toFixed(2),
+      p.currency,
+      p.state,
+      p.paid ? "yes" : "no",
+      p.date,
+    ]);
+    const csv = [header, ...rows].map((r) => r.join(",")).join("\n");
+    const blob = new Blob([csv], { type: "text/csv" });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = `payment-records-${new Date().toISOString().slice(0, 10)}.csv`;
+    a.click();
+    URL.revokeObjectURL(url);
+  };
+
   return (
     <div className="space-y-6">
       <div className="flex items-center justify-between">
         <div>
           <h1 className="text-2xl font-bold tracking-tight">Payment Record</h1>
-          <p className="text-muted-foreground">Manage payments, commissions, and Paymob orders.</p>
+          <p className="text-muted-foreground">
+            Live student fees, invoices, and Paymob orders.
+          </p>
         </div>
         <div className="flex gap-2">
-          <Button variant="outline" size="sm"><Download className="h-4 w-4 mr-1" /> Export CSV</Button>
+          <Button variant="outline" size="sm" onClick={handleExport} disabled={!payments.length}>
-          <Dialog>
+            <Download className="h-4 w-4 mr-1" /> Export CSV
-            <DialogTrigger asChild>
+          </Button>
-              <Button size="sm"><Plus className="h-4 w-4 mr-1" /> New Payment</Button>
-            </DialogTrigger>
-            <DialogContent>
-              <DialogHeader><DialogTitle>Create Payment Record</DialogTitle></DialogHeader>
-              <div className="space-y-4">
-                <div className="space-y-2"><Label>Corporate</Label><Select><SelectTrigger><SelectValue placeholder="Select" /></SelectTrigger><SelectContent><SelectItem value="acme">Acme Corp</SelectItem></SelectContent></Select></div>
-                <div className="space-y-2"><Label>Amount (USD)</Label><Input type="number" placeholder="5000" /></div>
-                <div className="space-y-2"><Label>Type</Label><Select><SelectTrigger><SelectValue placeholder="Type" /></SelectTrigger><SelectContent><SelectItem value="corporate">Corporate</SelectItem><SelectItem value="commission">Commission</SelectItem></SelectContent></Select></div>
-                <Button className="w-full">Create</Button>
-              </div>
-            </DialogContent>
-          </Dialog>
         </div>
       </div>
 
-      <AiTipBanner tip="PAY-003 (Tech Co) is unpaid and overdue. PMB-1004 failed — AI recommends sending an automated retry notification to Emma Brown." variant="recommendation" />
+      {totals && (
+        <div className="grid gap-4 md:grid-cols-4">
+          <Card className="border-0 shadow-sm">
+            <CardContent className="pt-6">
+              <p className="text-xs text-muted-foreground">Total records</p>
+              <p className="text-2xl font-bold">{totals.count}</p>
+            </CardContent>
+          </Card>
+          <Card className="border-0 shadow-sm">
+            <CardContent className="pt-6">
+              <p className="text-xs text-muted-foreground">Paid</p>
+              <p className="text-2xl font-bold text-green-600">{totals.paid}</p>
+            </CardContent>
+          </Card>
+          <Card className="border-0 shadow-sm">
+            <CardContent className="pt-6">
+              <p className="text-xs text-muted-foreground">Unpaid</p>
+              <p className="text-2xl font-bold text-red-600">{totals.unpaid}</p>
+            </CardContent>
+          </Card>
+          <Card className="border-0 shadow-sm">
+            <CardContent className="pt-6">
+              <p className="text-xs text-muted-foreground">Total amount</p>
+              <p className="text-2xl font-bold">${totals.amount.toLocaleString()}</p>
+            </CardContent>
+          </Card>
+        </div>
+      )}
+
+      <AiTipBanner context="payment-record" variant="recommendation" />
 
       <Tabs defaultValue="payments">
         <TabsList>
@@ -61,26 +108,57 @@ export default function PaymentRecordPage() {
         </TabsList>
 
         <TabsContent value="payments" className="mt-4 space-y-4">
-          <AiReportNarrative narrative="Total revenue collected: $13,500 from 2 corporate payments. One commission of $2,000 remains unpaid. Collection rate: 67%. Trend: Q1 payments are on track but Tech Co requires follow-up." />
+          <AiReportNarrative report_type="payments" data={{ payments }} />
           <Card className="border-0 shadow-sm">
             <CardContent className="p-0">
               <Table>
                 <TableHeader>
                   <TableRow>
-                    <TableHead>ID</TableHead><TableHead>Corporate</TableHead><TableHead>Manager</TableHead>
+                    <TableHead>Ref</TableHead>
-                    <TableHead>Amount</TableHead><TableHead>Type</TableHead><TableHead>Paid</TableHead><TableHead>Date</TableHead>
+                    <TableHead>Student</TableHead>
+                    <TableHead>Course</TableHead>
+                    <TableHead>Product</TableHead>
+                    <TableHead>Amount</TableHead>
+                    <TableHead>State</TableHead>
+                    <TableHead>Paid</TableHead>
+                    <TableHead>Date</TableHead>
                   </TableRow>
                 </TableHeader>
                 <TableBody>
+                  {isLoading && (
+                    <TableRow>
+                      <TableCell colSpan={8} className="text-center py-8">
+                        <Loader2 className="h-5 w-5 animate-spin mx-auto" />
+                      </TableCell>
+                    </TableRow>
+                  )}
+                  {!isLoading && payments.length === 0 && (
+                    <TableRow>
+                      <TableCell colSpan={8} className="text-center text-muted-foreground py-8">
+                        No payment records yet.
+                      </TableCell>
+                    </TableRow>
+                  )}
                   {payments.map((p) => (
                     <TableRow key={p.id}>
-                      <TableCell className="font-mono text-xs">{p.id}</TableCell>
+                      <TableCell className="font-mono text-xs">{p.ref}</TableCell>
-                      <TableCell>{p.corporate}</TableCell>
+                      <TableCell>{p.student_name || "—"}</TableCell>
-                      <TableCell>{p.manager}</TableCell>
+                      <TableCell>{p.course_name || "—"}</TableCell>
-                      <TableCell className="font-semibold">${p.amount.toLocaleString()}</TableCell>
+                      <TableCell className="text-sm text-muted-foreground">
-                      <TableCell><Badge variant="outline">{p.type}</Badge></TableCell>
+                        {p.product_name || "—"}
-                      <TableCell><Badge variant={p.paid ? "default" : "destructive"}>{p.paid ? "Paid" : "Unpaid"}</Badge></TableCell>
+                      </TableCell>
-                      <TableCell>{p.date}</TableCell>
+                      <TableCell className="font-semibold">
+                        ${p.amount.toLocaleString()} {p.currency}
+                      </TableCell>
+                      <TableCell>
+                        <Badge variant="outline">{p.state}</Badge>
+                      </TableCell>
+                      <TableCell>
+                        <Badge variant={p.paid ? "default" : "destructive"}>
+                          {p.paid ? "Paid" : "Unpaid"}
+                        </Badge>
+                      </TableCell>
+                      <TableCell>{p.date || "—"}</TableCell>
                     </TableRow>
                   ))}
                 </TableBody>
@@ -91,26 +169,50 @@ export default function PaymentRecordPage() {
 
         <TabsContent value="paymob" className="mt-4">
           <Card className="border-0 shadow-sm">
-            <CardContent className="p-0">
+            <CardContent className="p-6">
-              <Table>
+              {(paymobData?.items?.length ?? 0) === 0 ? (
-                <TableHeader>
+                <div className="text-center text-muted-foreground py-8">
-                  <TableRow>
+                  {paymobData?.message ??
-                    <TableHead>Order ID</TableHead><TableHead>Status</TableHead><TableHead>User</TableHead>
+                    "Paymob integration is not yet wired. Orders will appear here once configured."}
-                    <TableHead>Email</TableHead><TableHead>Amount</TableHead>
+                </div>
-                  </TableRow>
+              ) : (
-                </TableHeader>
+                <Table>
-                <TableBody>
+                  <TableHeader>
-                  {paymobOrders.map((o) => (
+                    <TableRow>
-                    <TableRow key={o.id}>
+                      <TableHead>Order ID</TableHead>
-                      <TableCell className="font-mono text-xs">{o.id}</TableCell>
+                      <TableHead>Status</TableHead>
-                      <TableCell><Badge variant={o.status === "Paid" ? "default" : o.status === "Pending" ? "secondary" : "destructive"}>{o.status}</Badge></TableCell>
+                      <TableHead>User</TableHead>
-                      <TableCell>{o.user}</TableCell>
+                      <TableHead>Email</TableHead>
-                      <TableCell>{o.email}</TableCell>
+                      <TableHead>Amount</TableHead>
-                      <TableCell className="font-semibold">${o.amount.toFixed(2)}</TableCell>
                     </TableRow>
-                  ))}
+                  </TableHeader>
-                </TableBody>
+                  <TableBody>
-              </Table>
+                    {paymobData!.items.map((o) => (
+                      <TableRow key={o.id}>
+                        <TableCell className="font-mono text-xs">{o.id}</TableCell>
+                        <TableCell>
+                          <Badge
+                            variant={
+                              o.status === "Paid"
+                                ? "default"
+                                : o.status === "Pending"
+                                  ? "secondary"
+                                  : "destructive"
+                            }
+                          >
+                            {o.status}
+                          </Badge>
+                        </TableCell>
+                        <TableCell>{o.user}</TableCell>
+                        <TableCell>{o.email}</TableCell>
+                        <TableCell className="font-semibold">
+                          ${o.amount.toFixed(2)}
+                        </TableCell>
+                      </TableRow>
+                    ))}
+                  </TableBody>
+                </Table>
+              )}
             </CardContent>
           </Card>
         </TabsContent>

src/pages/PrivacyCenter.tsx

@@ -0,0 +1,173 @@
+import { useState } from "react";
+import { useNavigate } from "react-router-dom";
+import { Download, ShieldAlert, Trash2 } from "lucide-react";
+import { toast } from "sonner";
+
+import { Button } from "@/components/ui/button";
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from "@/components/ui/alert-dialog";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { gdprService } from "@/services/gdpr.service";
+import { useAuth } from "@/contexts/AuthContext";
+
+export default function PrivacyCenter() {
+  const navigate = useNavigate();
+  const { logout } = useAuth();
+  const [exporting, setExporting] = useState(false);
+  const [erasing, setErasing] = useState(false);
+  const [confirmOpen, setConfirmOpen] = useState(false);
+  const [confirmText, setConfirmText] = useState("");
+
+  const downloadExport = async () => {
+    try {
+      setExporting(true);
+      const payload = await gdprService.exportMyData();
+      const blob = new Blob([JSON.stringify(payload, null, 2)], {
+        type: "application/json",
+      });
+      const url = URL.createObjectURL(blob);
+      const a = document.createElement("a");
+      a.href = url;
+      a.download = `encoach-data-export-${new Date()
+        .toISOString()
+        .slice(0, 10)}.json`;
+      document.body.appendChild(a);
+      a.click();
+      a.remove();
+      URL.revokeObjectURL(url);
+      toast.success("Data export downloaded");
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "Export failed");
+    } finally {
+      setExporting(false);
+    }
+  };
+
+  const eraseAccount = async () => {
+    try {
+      setErasing(true);
+      await gdprService.eraseMyAccount();
+      toast.success("Your account has been erased. Signing out…");
+      setTimeout(async () => {
+        try {
+          await logout();
+        } catch {
+          // ignore — the server may have already invalidated our tokens
+        }
+        navigate("/login", { replace: true });
+      }, 1200);
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "Erasure failed");
+      setErasing(false);
+    }
+  };
+
+  return (
+    <div className="mx-auto max-w-3xl space-y-6 p-6">
+      <div>
+        <h1 className="text-2xl font-semibold tracking-tight">
+          <ShieldAlert className="mr-1 inline h-5 w-5" />
+          Privacy Center
+        </h1>
+        <p className="text-muted-foreground mt-1 text-sm">
+          Manage your personal data held by EnCoach under GDPR and equivalent
+          regulations.
+        </p>
+      </div>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>Download your data</CardTitle>
+          <CardDescription>
+            We'll package your profile, entity memberships, exam attempts,
+            answers, AI feedback, and tickets into a single JSON file.
+          </CardDescription>
+        </CardHeader>
+        <CardContent>
+          <Button onClick={downloadExport} disabled={exporting}>
+            <Download className="mr-1 h-4 w-4" />
+            {exporting ? "Preparing export…" : "Download my data"}
+          </Button>
+        </CardContent>
+      </Card>
+
+      <Card className="border-destructive/40">
+        <CardHeader>
+          <CardTitle className="text-destructive">Delete my account</CardTitle>
+          <CardDescription>
+            This anonymises your profile and removes personal fields from our
+            records. Exam attempts are retained (without identifying
+            information) for statistical integrity. This action cannot be
+            undone.
+          </CardDescription>
+        </CardHeader>
+        <CardContent>
+          <Button
+            variant="destructive"
+            onClick={() => setConfirmOpen(true)}
+            disabled={erasing}
+          >
+            <Trash2 className="mr-1 h-4 w-4" />
+            {erasing ? "Erasing…" : "Erase my account"}
+          </Button>
+        </CardContent>
+      </Card>
+
+      <AlertDialog open={confirmOpen} onOpenChange={setConfirmOpen}>
+        <AlertDialogContent description="Erasure is permanent — type DELETE to confirm.">
+          <AlertDialogHeader>
+            <AlertDialogTitle>Erase your account?</AlertDialogTitle>
+            <AlertDialogDescription>
+              We'll anonymise your personal data and deactivate your login.
+              Aggregate analytics (exam scores, attempt counts) will remain
+              but will no longer be linked to you.
+            </AlertDialogDescription>
+          </AlertDialogHeader>
+          <div className="space-y-1">
+            <Label htmlFor="confirm-delete">
+              Type <strong>DELETE</strong> to confirm:
+            </Label>
+            <Input
+              id="confirm-delete"
+              value={confirmText}
+              onChange={(e) => setConfirmText(e.target.value)}
+              placeholder="DELETE"
+            />
+          </div>
+          <AlertDialogFooter>
+            <AlertDialogCancel onClick={() => setConfirmText("")}>
+              Cancel
+            </AlertDialogCancel>
+            <AlertDialogAction
+              disabled={confirmText !== "DELETE" || erasing}
+              onClick={async () => {
+                setConfirmOpen(false);
+                await eraseAccount();
+                setConfirmText("");
+              }}
+              className="bg-destructive text-destructive-foreground hover:bg-destructive/90"
+            >
+              Erase account
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
+    </div>
+  );
+}

src/pages/ProfilePage.tsx

@@ -1,75 +0,0 @@
-import { useState } from "react";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
-import { Input } from "@/components/ui/input";
-import { Button } from "@/components/ui/button";
-import { Label } from "@/components/ui/label";
-import { User } from "lucide-react";
-import { api } from "@/lib/api-client";
-import { useMutation } from "@tanstack/react-query";
-import { useToast } from "@/hooks/use-toast";
-import { useAuth } from "@/contexts/AuthContext";
-
-export default function ProfilePage() {
-  const { user } = useAuth();
-  const { toast } = useToast();
-  const nameParts = (user?.name || "Admin User").split(" ");
-  const [first, setFirst] = useState(nameParts[0] || "");
-  const [last, setLast] = useState(nameParts.slice(1).join(" ") || "");
-  const [email, setEmail] = useState(user?.email || "");
-  const [curPw, setCurPw] = useState("");
-  const [newPw, setNewPw] = useState("");
-  const [confirmPw, setConfirmPw] = useState("");
-
-  const saveMut = useMutation({
-    mutationFn: () => api.patch("/user", { first_name: first, last_name: last, email }),
-    onSuccess: () => toast({ title: "Profile saved" }),
-    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
-  });
-
-  const pwMut = useMutation({
-    mutationFn: () => api.post("/user/change-password", { current_password: curPw, new_password: newPw }),
-    onSuccess: () => { setCurPw(""); setNewPw(""); setConfirmPw(""); toast({ title: "Password updated" }); },
-    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
-  });
-
-  return (
-    <div className="space-y-6 max-w-2xl">
-      <div>
-        <h1 className="text-2xl font-bold tracking-tight">Profile</h1>
-        <p className="text-muted-foreground">Manage your account information.</p>
-      </div>
-
-      <Card className="border-0 shadow-sm">
-        <CardHeader><CardTitle className="text-base">Personal Information</CardTitle></CardHeader>
-        <CardContent className="space-y-4">
-          <div className="flex items-center gap-4 mb-4">
-            <div className="h-16 w-16 rounded-full bg-primary/10 flex items-center justify-center">
-              <User className="h-8 w-8 text-primary" />
-            </div>
-          </div>
-          <div className="grid grid-cols-2 gap-4">
-            <div className="space-y-2"><Label>First Name</Label><Input value={first} onChange={(e) => setFirst(e.target.value)} /></div>
-            <div className="space-y-2"><Label>Last Name</Label><Input value={last} onChange={(e) => setLast(e.target.value)} /></div>
-          </div>
-          <div className="space-y-2"><Label>Email</Label><Input value={email} onChange={(e) => setEmail(e.target.value)} type="email" /></div>
-          <Button onClick={() => saveMut.mutate()} disabled={saveMut.isPending}>
-            {saveMut.isPending ? "Saving..." : "Save Changes"}
-          </Button>
-        </CardContent>
-      </Card>
-
-      <Card className="border-0 shadow-sm">
-        <CardHeader><CardTitle className="text-base">Change Password</CardTitle></CardHeader>
-        <CardContent className="space-y-4">
-          <div className="space-y-2"><Label>Current Password</Label><Input type="password" value={curPw} onChange={(e) => setCurPw(e.target.value)} placeholder="••••••••" /></div>
-          <div className="space-y-2"><Label>New Password</Label><Input type="password" value={newPw} onChange={(e) => setNewPw(e.target.value)} placeholder="••••••••" /></div>
-          <div className="space-y-2"><Label>Confirm New Password</Label><Input type="password" value={confirmPw} onChange={(e) => setConfirmPw(e.target.value)} placeholder="••••••••" /></div>
-          {newPw && confirmPw && newPw !== confirmPw && <p className="text-sm text-destructive">Passwords do not match.</p>}
-          <Button onClick={() => pwMut.mutate()} disabled={pwMut.isPending || !curPw || !newPw || newPw !== confirmPw}>
-            {pwMut.isPending ? "Updating..." : "Update Password"}
-          </Button>
-        </CardContent>
-      </Card>
-    </div>
-  );
-}

src/pages/RecordPage.tsx

@@ -1,66 +1,212 @@
+import { useState } from "react";
+import { useQuery } from "@tanstack/react-query";
 import { Card, CardContent } from "@/components/ui/card";
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import {
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
+import { Loader2, Download } from "lucide-react";
 import AiTipBanner from "@/components/ai/AiTipBanner";
 import AiReportNarrative from "@/components/ai/AiReportNarrative";
+import { reportsService, RecordRow } from "@/services/reports.service";
 
-const records = [
+type Period = "all" | "day" | "week" | "month";
-  { id: 1, assignment: "IELTS Prep Q1", exam: "EX-001", date: "2025-03-01", score: 7.5, duration: "175 min", status: "Completed" },
-  { id: 2, assignment: "Speaking Workshop", exam: "EX-005", date: "2025-03-05", score: 6.0, duration: "14 min", status: "Completed" },
-  { id: 3, assignment: "Full Mock Exam", exam: "EX-006", date: "2025-03-10", score: null, duration: "120 min", status: "In Progress" },
-  { id: 4, assignment: "Listening Bootcamp", exam: "EX-003", date: "2025-02-20", score: 5.5, duration: "28 min", status: "Completed" },
-];
 
 export default function RecordPage() {
+  const [entityId, setEntityId] = useState("all");
+  const [userId, setUserId] = useState("all");
+  const [period, setPeriod] = useState<Period>("all");
+
+  const { data: filters } = useQuery({
+    queryKey: ["reports-filters"],
+    queryFn: () => reportsService.filters(),
+  });
+
+  const { data, isLoading } = useQuery({
+    queryKey: ["record", entityId, userId, period],
+    queryFn: () =>
+      reportsService.record({
+        entity_id: entityId === "all" ? undefined : Number(entityId),
+        user_id: userId === "all" ? undefined : Number(userId),
+        period: period === "all" ? undefined : period,
+        size: 100,
+      }),
+  });
+
+  const records: RecordRow[] = data?.items ?? [];
+
+  const exportCsv = () => {
+    const header = [
+      "Student",
+      "Assignment",
+      "Exam",
+      "Date",
+      "Score",
+      "Duration",
+      "Status",
+    ];
+    const lines = records.map((r) =>
+      [
+        r.student_name,
+        r.assignment,
+        r.exam_code || r.exam,
+        r.date ?? "",
+        r.score ?? "",
+        r.duration,
+        r.status_label,
+      ]
+        .map((v) => `"${String(v).replace(/"/g, '""')}"`)
+        .join(","),
+    );
+    const blob = new Blob([[header.join(","), ...lines].join("\n")], {
+      type: "text/csv",
+    });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = `records-${new Date().toISOString().slice(0, 10)}.csv`;
+    a.click();
+    URL.revokeObjectURL(url);
+  };
+
+  const statusVariant = (status: string) => {
+    if (status === "completed" || status === "released" || status === "scored")
+      return "default";
+    if (status === "in_progress" || status === "scoring") return "secondary";
+    return "outline";
+  };
+
   return (
     <div className="space-y-6">
-      <div>
+      <div className="flex items-start justify-between gap-4">
-        <h1 className="text-2xl font-bold tracking-tight">Record</h1>
+        <div>
-        <p className="text-muted-foreground">Browse assignment and exam attempt history.</p>
+          <h1 className="text-2xl font-bold tracking-tight">Record</h1>
+          <p className="text-muted-foreground">
+            Browse assignment and exam attempt history.
+            {data && (
+              <span className="ml-2 text-xs">({data.total} attempts)</span>
+            )}
+          </p>
+        </div>
+        <Button
+          variant="outline"
+          size="sm"
+          onClick={exportCsv}
+          disabled={!records.length}
+        >
+          <Download className="h-4 w-4 mr-1" /> Export CSV
+        </Button>
       </div>
 
-      <AiTipBanner tip="The student's scores show an upward trend from 5.5 → 6.0 → 7.5 over the last 3 completed exams. Listening remains the weakest module — recommend targeted practice." variant="insight" />
+      <AiTipBanner context="record" variant="insight" />
 
-      <AiReportNarrative narrative="3 of 4 attempts completed with an average score of 6.3. Time management is good — all exams finished within allocated time. The Full Mock Exam is still in progress (67% time used). Strongest area: Reading (7.5), weakest: Listening (5.5)." />
+      {records.length > 0 && (
+        <AiReportNarrative report_type="record" data={{ records }} />
+      )}
 
       <div className="flex flex-wrap gap-3 items-center">
-        <Select><SelectTrigger className="w-[160px]"><SelectValue placeholder="Entity" /></SelectTrigger>
+        <Select value={entityId} onValueChange={setEntityId}>
-          <SelectContent><SelectItem value="acme">Acme Corp</SelectItem><SelectItem value="global">Global Ltd</SelectItem></SelectContent>
+          <SelectTrigger className="w-[180px]">
+            <SelectValue placeholder="All Entities" />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="all">All Entities</SelectItem>
+            {filters?.entities.map((e) => (
+              <SelectItem key={e.id} value={String(e.id)}>
+                {e.name}
+              </SelectItem>
+            ))}
+          </SelectContent>
         </Select>
-        <Select><SelectTrigger className="w-[180px]"><SelectValue placeholder="Select User" /></SelectTrigger>
+        <Select value={userId} onValueChange={setUserId}>
-          <SelectContent><SelectItem value="sarah">Sarah Johnson</SelectItem><SelectItem value="ahmed">Ahmed Hassan</SelectItem></SelectContent>
+          <SelectTrigger className="w-[220px]">
+            <SelectValue placeholder="All Users" />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="all">All Users</SelectItem>
+            {filters?.students.map((s) => (
+              <SelectItem key={s.id} value={String(s.id)}>
+                {s.name}
+              </SelectItem>
+            ))}
+          </SelectContent>
         </Select>
         <div className="flex gap-1">
-          {["Day", "Week", "Month"].map(t => (
+          {(["all", "day", "week", "month"] as Period[]).map((p) => (
-            <Button key={t} variant="outline" size="sm">{t}</Button>
+            <Button
+              key={p}
+              variant={period === p ? "default" : "outline"}
+              size="sm"
+              onClick={() => setPeriod(p)}
+            >
+              {p === "all" ? "All" : p.charAt(0).toUpperCase() + p.slice(1)}
+            </Button>
           ))}
         </div>
       </div>
 
       <Card className="border-0 shadow-sm">
         <CardContent className="p-0">
-          <Table>
+          {isLoading ? (
-            <TableHeader>
+            <div className="flex items-center justify-center p-12 text-muted-foreground">
-              <TableRow>
+              <Loader2 className="h-5 w-5 animate-spin mr-2" /> Loading
-                <TableHead>Assignment</TableHead><TableHead>Exam</TableHead><TableHead>Date</TableHead>
+              attempts...
-                <TableHead>Score</TableHead><TableHead>Duration</TableHead><TableHead>Status</TableHead>
+            </div>
-              </TableRow>
+          ) : records.length === 0 ? (
-            </TableHeader>
+            <div className="p-8 text-center text-muted-foreground">
-            <TableBody>
+              No attempts match these filters.
-              {records.map((r) => (
+            </div>
-                <TableRow key={r.id}>
+          ) : (
-                  <TableCell className="font-medium">{r.assignment}</TableCell>
+            <Table>
-                  <TableCell className="font-mono text-xs">{r.exam}</TableCell>
+              <TableHeader>
-                  <TableCell>{r.date}</TableCell>
+                <TableRow>
-                  <TableCell>{r.score ? r.score.toFixed(1) : "—"}</TableCell>
+                  <TableHead>Student</TableHead>
-                  <TableCell>{r.duration}</TableCell>
+                  <TableHead>Assignment</TableHead>
-                  <TableCell><Badge variant={r.status === "Completed" ? "default" : "secondary"}>{r.status}</Badge></TableCell>
+                  <TableHead>Exam</TableHead>
+                  <TableHead>Date</TableHead>
+                  <TableHead>Score</TableHead>
+                  <TableHead>Duration</TableHead>
+                  <TableHead>Status</TableHead>
                 </TableRow>
-              ))}
+              </TableHeader>
-            </TableBody>
+              <TableBody>
-          </Table>
+                {records.map((r) => (
+                  <TableRow key={r.id}>
+                    <TableCell className="font-medium">
+                      {r.student_name || "—"}
+                    </TableCell>
+                    <TableCell>{r.assignment || "—"}</TableCell>
+                    <TableCell className="font-mono text-xs">
+                      {r.exam_code}
+                    </TableCell>
+                    <TableCell>{r.date || "—"}</TableCell>
+                    <TableCell>
+                      {r.score ? r.score.toFixed(1) : "—"}
+                    </TableCell>
+                    <TableCell>{r.duration}</TableCell>
+                    <TableCell>
+                      <Badge variant={statusVariant(r.status)}>
+                        {r.status_label}
+                      </Badge>
+                    </TableCell>
+                  </TableRow>
+                ))}
+              </TableBody>
+            </Table>
+          )}
         </CardContent>
       </Card>
     </div>

src/pages/Register.tsx

@@ -1,17 +1,18 @@
-import { useState } from "react";
+import { useState, useEffect, useCallback, useRef } from "react";
 import { Link, useNavigate } from "react-router-dom";
 import { zodResolver } from "@hookform/resolvers/zod";
 import { useForm } from "react-hook-form";
 import { z } from "zod";
+import { useQuery } from "@tanstack/react-query";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
 import { Form, FormControl, FormField, FormItem, FormLabel, FormMessage } from "@/components/ui/form";
 import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group";
 import { Progress } from "@/components/ui/progress";
-import { GraduationCap, Eye, EyeOff, Loader2 } from "lucide-react";
+import { GraduationCap, Eye, EyeOff, Loader2, ShieldCheck } from "lucide-react";
 import { useRegister, useCheckEmail } from "@/hooks/queries/useSignup";
-import { ApiError } from "@/lib/api-client";
+import { ApiError, api } from "@/lib/api-client";
 import type { RegisterRequest } from "@/types";
 import { cn } from "@/lib/utils";
 
@@ -47,6 +48,41 @@ export default function Register() {
   const checkEmail = useCheckEmail();
   const [showPassword, setShowPassword] = useState(false);
   const [showConfirm, setShowConfirm] = useState(false);
+  const [captchaToken, setCaptchaToken] = useState<string>("");
+  const captchaContainerRef = useRef<HTMLDivElement>(null);
+
+  const { data: captchaConfig } = useQuery({
+    queryKey: ["captcha-config"],
+    queryFn: () => api.get<{ provider: string; site_key: string }>("/config/captcha"),
+    staleTime: Infinity,
+  });
+
+  const loadCaptchaScript = useCallback((provider: string, siteKey: string) => {
+    if (!siteKey || !provider) return;
+    const existingScript = document.querySelector(`script[data-captcha-provider="${provider}"]`);
+    if (existingScript) return;
+
+    const scriptUrls: Record<string, string> = {
+      recaptcha: `https://www.google.com/recaptcha/api.js?render=${siteKey}`,
+      hcaptcha: "https://js.hcaptcha.com/1/api.js",
+      turnstile: "https://challenges.cloudflare.com/turnstile/v0/api.js",
+    };
+    const url = scriptUrls[provider];
+    if (!url) return;
+
+    const script = document.createElement("script");
+    script.src = url;
+    script.async = true;
+    script.defer = true;
+    script.setAttribute("data-captcha-provider", provider);
+    document.head.appendChild(script);
+  }, []);
+
+  useEffect(() => {
+    if (captchaConfig?.site_key && captchaConfig?.provider) {
+      loadCaptchaScript(captchaConfig.provider, captchaConfig.site_key);
+    }
+  }, [captchaConfig, loadCaptchaScript]);
 
   const form = useForm<FormValues>({
     resolver: zodResolver(schema),
@@ -69,7 +105,7 @@ export default function Register() {
       email: values.email.trim(),
       password: values.password,
       role: values.role,
-      captcha_token: "demo-placeholder",
+      captcha_token: captchaToken || undefined,
     };
     try {
       await register.mutateAsync(payload);
@@ -251,10 +287,26 @@ export default function Register() {
                 />
 
                 <div className="rounded-lg border border-dashed bg-muted/30 p-4 space-y-2">
-                  <p className="text-sm font-medium">CAPTCHA</p>
+                  <p className="text-sm font-medium flex items-center gap-2">
-                  <div className="h-16 rounded-md bg-muted flex items-center justify-center text-xs text-muted-foreground">
+                    <ShieldCheck className="h-4 w-4" /> Verification
-                    Verification widget placeholder
+                  </p>
+                  <div ref={captchaContainerRef} className="min-h-[65px] flex items-center justify-center">
+                    {captchaConfig?.site_key ? (
+                      <div
+                        className={captchaConfig.provider === "hcaptcha" ? "h-captcha" :
+                          captchaConfig.provider === "turnstile" ? "cf-turnstile" : "g-recaptcha"}
+                        data-sitekey={captchaConfig.site_key}
+                        data-callback="onCaptchaSuccess"
+                      />
+                    ) : (
+                      <p className="text-xs text-muted-foreground">CAPTCHA not configured — registration allowed</p>
+                    )}
                   </div>
+                  {captchaToken && (
+                    <p className="text-xs text-green-600 flex items-center gap-1">
+                      <ShieldCheck className="h-3 w-3" /> Verified
+                    </p>
+                  )}
                 </div>
 
                 {form.formState.errors.root && (

src/pages/RubricsPage.tsx

@@ -1,31 +1,644 @@
 import { useState } from "react";
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 import { Card, CardContent } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
+import { Checkbox } from "@/components/ui/checkbox";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogTrigger } from "@/components/ui/dialog";
-import { Label } from "@/components/ui/label";
 import { Textarea } from "@/components/ui/textarea";
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
+import {
-import { Search, Plus } from "lucide-react";
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+  DialogTrigger,
+} from "@/components/ui/dialog";
+import { Label } from "@/components/ui/label";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+import {
+  Collapsible,
+  CollapsibleContent,
+  CollapsibleTrigger,
+} from "@/components/ui/collapsible";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import { Search, Plus, Loader2, Pencil, Trash2, X, Sparkles, ChevronDown } from "lucide-react";
 import AiTipBanner from "@/components/ai/AiTipBanner";
 import AiCreationAssistant from "@/components/ai/AiCreationAssistant";
+import { examsService } from "@/services/exams.service";
+import { useToast } from "@/hooks/use-toast";
 
-const rubrics = [
+interface RubricItem {
-  { id: 1, name: "IELTS Writing Task 2", levels: ["A1","A2","B1","B2","C1","C2"], criteria: 4, created: "2025-01-05" },
+  id: number;
-  { id: 2, name: "Speaking Fluency", levels: ["A1","A2","B1","B2","C1","C2"], criteria: 3, created: "2025-01-10" },
+  name: string;
-  { id: 3, name: "Reading Comprehension", levels: ["A1","A2","B1","B2","C1"], criteria: 5, created: "2025-02-01" },
+  skill: string;
+  exam_type: string;
+  criteria: number;
+  criteria_text: string;
+  levels: string[];
+  created: string;
+}
+
+interface CriterionEntry {
+  name: string;
+  weight: number;
+  descriptors: Record<string, string>;
+}
+
+const SKILL_OPTIONS = [
+  { value: "writing", label: "Writing" },
+  { value: "speaking", label: "Speaking" },
 ];
 
-const rubricGroups = [
+const EXAM_TYPE_OPTIONS = [
-  { id: 1, name: "Academic IELTS Full", rubrics: ["IELTS Writing Task 2", "Speaking Fluency", "Reading Comprehension"], created: "2025-02-15" },
+  { value: "academic", label: "Academic" },
-  { id: 2, name: "Business English", rubrics: ["Speaking Fluency"], created: "2025-03-01" },
+  { value: "general_training", label: "General Training" },
+  { value: "general_english", label: "General English" },
 ];
 
+const ALL_CEFR_LEVELS = ["A1", "A2", "B1", "B2", "C1", "C2"];
+
+interface RubricFormState {
+  name: string;
+  skill: string;
+  exam_type: string;
+  criteria: CriterionEntry[];
+  levels: Set<string>;
+}
+
+const emptyCriterion = (levels: Set<string>, name = "", weight = 0): CriterionEntry => ({
+  name,
+  weight,
+  descriptors: Object.fromEntries([...levels].map((l) => [l, ""])),
+});
+
+/**
+ * Canonical criterion catalog by skill. QA asked the "Add Criterion" button
+ * to offer a dropdown of predefined names instead of a blank row.
+ * Source: official IELTS public band descriptors for Writing & Speaking.
+ * "Custom…" keeps the old "add empty row and type it yourself" behaviour.
+ */
+const CRITERION_PRESETS: Record<string, { label: string; items: { name: string; weight: number }[] }[]> = {
+  writing: [
+    {
+      label: "IELTS Writing — Task 1",
+      items: [
+        { name: "Task Achievement", weight: 25 },
+        { name: "Coherence and Cohesion", weight: 25 },
+        { name: "Lexical Resource", weight: 25 },
+        { name: "Grammatical Range and Accuracy", weight: 25 },
+      ],
+    },
+    {
+      label: "IELTS Writing — Task 2",
+      items: [
+        { name: "Task Response", weight: 25 },
+        { name: "Coherence and Cohesion", weight: 25 },
+        { name: "Lexical Resource", weight: 25 },
+        { name: "Grammatical Range and Accuracy", weight: 25 },
+      ],
+    },
+    {
+      label: "Generic academic writing",
+      items: [
+        { name: "Content & Ideas", weight: 25 },
+        { name: "Organization", weight: 25 },
+        { name: "Language Use", weight: 25 },
+        { name: "Mechanics", weight: 25 },
+      ],
+    },
+  ],
+  speaking: [
+    {
+      label: "IELTS Speaking",
+      items: [
+        { name: "Fluency and Coherence", weight: 25 },
+        { name: "Lexical Resource", weight: 25 },
+        { name: "Grammatical Range and Accuracy", weight: 25 },
+        { name: "Pronunciation", weight: 25 },
+      ],
+    },
+    {
+      label: "Generic oral skills",
+      items: [
+        { name: "Content", weight: 25 },
+        { name: "Delivery", weight: 25 },
+        { name: "Interaction", weight: 25 },
+        { name: "Language", weight: 25 },
+      ],
+    },
+  ],
+};
+
+const emptyForm = (): RubricFormState => ({
+  name: "",
+  skill: "writing",
+  exam_type: "academic",
+  criteria: [],
+  levels: new Set(ALL_CEFR_LEVELS),
+});
+
+function parseCriteriaText(text: string, levels: string[]): CriterionEntry[] {
+  if (!text) return [];
+
+  const mapStructured = (arr: unknown[]): CriterionEntry[] =>
+    arr.map((c) => {
+      const obj = c as Record<string, unknown>;
+      return {
+        name: String(obj.name || ""),
+        weight: Number(obj.weight || 0),
+        descriptors:
+          typeof obj.descriptors === "object" && obj.descriptors !== null
+            ? Object.fromEntries(levels.map((l) => [l, String((obj.descriptors as Record<string, unknown>)[l] || "")]))
+            : Object.fromEntries(levels.map((l) => [l, ""])),
+      };
+    });
+
+  try {
+    const parsed = JSON.parse(text);
+    // Handle {"criteria": [...]} wrapper (from AI or previous saves)
+    if (parsed && typeof parsed === "object" && !Array.isArray(parsed) && Array.isArray(parsed.criteria)) {
+      return mapStructured(parsed.criteria);
+    }
+    if (Array.isArray(parsed)) {
+      if (parsed.length > 0 && typeof parsed[0] === "object" && parsed[0] !== null && "name" in parsed[0]) {
+        return mapStructured(parsed);
+      }
+      return parsed.filter(Boolean).map((name) => ({
+        name: String(name),
+        weight: Math.round(100 / parsed.length),
+        descriptors: Object.fromEntries(levels.map((l) => [l, ""])),
+      }));
+    }
+  } catch { /* not JSON */ }
+
+  const lines = text.split("\n").map((l) => l.trim()).filter(Boolean);
+  if (lines.length === 0) return [];
+  return lines.map((name) => ({
+    name,
+    weight: Math.round(100 / lines.length),
+    descriptors: Object.fromEntries(levels.map((l) => [l, ""])),
+  }));
+}
+
+interface GroupFormState {
+  name: string;
+  rubric_ids: Set<number>;
+}
+
+const emptyGroupForm = (): GroupFormState => ({ name: "", rubric_ids: new Set() });
+
 export default function RubricsPage() {
+  const { toast } = useToast();
+  const queryClient = useQueryClient();
   const [search, setSearch] = useState("");
 
+  const [createOpen, setCreateOpen] = useState(false);
+  const [createForm, setCreateForm] = useState<RubricFormState>(emptyForm());
+
+  const [editTarget, setEditTarget] = useState<RubricItem | null>(null);
+  const [editForm, setEditForm] = useState<RubricFormState>(emptyForm());
+
+  const [groupCreateOpen, setGroupCreateOpen] = useState(false);
+  const [groupCreateForm, setGroupCreateForm] = useState<GroupFormState>(emptyGroupForm());
+  const [groupEditTarget, setGroupEditTarget] = useState<{ id: number; name: string; rubric_ids: number[] } | null>(null);
+  const [groupEditForm, setGroupEditForm] = useState<GroupFormState>(emptyGroupForm());
+
+  const rubricsQ = useQuery({
+    queryKey: ["rubrics"],
+    queryFn: () => examsService.listRubrics({}),
+  });
+  const rubrics = (rubricsQ.data?.items ?? []) as unknown as RubricItem[];
+
+  const rubricGroupsQ = useQuery({
+    queryKey: ["rubric-groups"],
+    queryFn: () => examsService.listRubricGroups({}),
+  });
+  const rubricGroups = rubricGroupsQ.data?.items ?? [];
+
+  const createMut = useMutation({
+    mutationFn: (data: Record<string, unknown>) => examsService.createRubric(data as never),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["rubrics"] });
+      setCreateOpen(false);
+      setCreateForm(emptyForm());
+      toast({ title: "Rubric created" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Create failed", description: err.message }),
+  });
+
+  const updateMut = useMutation({
+    mutationFn: ({ id, data }: { id: number; data: Record<string, unknown> }) =>
+      examsService.updateRubric(id, data as never),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["rubrics"] });
+      setEditTarget(null);
+      toast({ title: "Rubric updated" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Update failed", description: err.message }),
+  });
+
+  const deleteMut = useMutation({
+    mutationFn: (id: number) => examsService.deleteRubric(id),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["rubrics"] });
+      toast({ title: "Rubric deleted" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Delete failed", description: err.message }),
+  });
+
+  const createGroupMut = useMutation({
+    mutationFn: (data: { name: string; rubric_ids: number[] }) => examsService.createRubricGroup(data),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["rubric-groups"] });
+      setGroupCreateOpen(false);
+      setGroupCreateForm(emptyGroupForm());
+      toast({ title: "Rubric group created" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Create group failed", description: err.message }),
+  });
+
+  const updateGroupMut = useMutation({
+    mutationFn: ({ id, data }: { id: number; data: { name?: string; rubric_ids?: number[] } }) =>
+      examsService.updateRubricGroup(id, data),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["rubric-groups"] });
+      setGroupEditTarget(null);
+      toast({ title: "Rubric group updated" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Update group failed", description: err.message }),
+  });
+
+  const deleteGroupMut = useMutation({
+    mutationFn: (id: number) => examsService.deleteRubricGroup(id),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["rubric-groups"] });
+      toast({ title: "Rubric group deleted" });
+    },
+    onError: (err: Error) => toast({ variant: "destructive", title: "Delete group failed", description: err.message }),
+  });
+
+  const [suggesting, setSuggesting] = useState(false);
+
+  const suggestCriteria = async (
+    form: RubricFormState,
+    setForm: React.Dispatch<React.SetStateAction<RubricFormState>>,
+  ) => {
+    setSuggesting(true);
+    try {
+      const result = await examsService.suggestRubricCriteria({
+        name: form.name,
+        skill: form.skill,
+        exam_type: form.exam_type,
+        levels: [...form.levels],
+      });
+      if (result.criteria && Array.isArray(result.criteria) && result.criteria.length > 0) {
+        const levelsArr = [...form.levels];
+        const entries: CriterionEntry[] = result.criteria.map((c: unknown) => {
+          if (typeof c === "object" && c !== null) {
+            const obj = c as Record<string, unknown>;
+            return {
+              name: String(obj.name || ""),
+              weight: Number(obj.weight || 0),
+              descriptors: typeof obj.descriptors === "object" && obj.descriptors !== null
+                ? Object.fromEntries(
+                    levelsArr.map((l) => [l, String((obj.descriptors as Record<string, unknown>)[l] || "")])
+                  )
+                : Object.fromEntries(levelsArr.map((l) => [l, ""])),
+            };
+          }
+          return { name: String(c), weight: 0, descriptors: Object.fromEntries(levelsArr.map((l) => [l, ""])) };
+        });
+        setForm((f) => ({ ...f, criteria: entries }));
+        toast({ title: "Criteria generated", description: `${entries.length} criteria with band descriptors created by AI.` });
+      }
+    } catch (err) {
+      toast({ variant: "destructive", title: "AI suggestion failed", description: (err as Error).message });
+    } finally {
+      setSuggesting(false);
+    }
+  };
+
+  const openEdit = (r: RubricItem) => {
+    const levelsArr = Array.isArray(r.levels) && r.levels.length > 0 ? r.levels : ALL_CEFR_LEVELS;
+    setEditTarget(r);
+    setEditForm({
+      name: r.name,
+      skill: r.skill || "writing",
+      exam_type: r.exam_type || "academic",
+      criteria: parseCriteriaText(r.criteria_text, levelsArr),
+      levels: new Set(levelsArr),
+    });
+  };
+
+  const formToPayload = (form: RubricFormState) => ({
+    name: form.name.trim(),
+    skill: form.skill,
+    exam_type: form.exam_type,
+    criteria: JSON.stringify(form.criteria.filter((c) => c.name.trim())),
+    levels: [...form.levels],
+  });
+
+  const filtered = rubrics.filter((r) => {
+    if (!search) return true;
+    const q = search.toLowerCase();
+    return r.name?.toLowerCase().includes(q) || r.skill?.toLowerCase().includes(q);
+  });
+
+  const updateCriterion = (
+    setForm: React.Dispatch<React.SetStateAction<RubricFormState>>,
+    index: number,
+    patch: Partial<CriterionEntry>,
+  ) => {
+    setForm((f) => {
+      const criteria = [...f.criteria];
+      criteria[index] = { ...criteria[index], ...patch };
+      return { ...f, criteria };
+    });
+  };
+
+  const updateDescriptor = (
+    setForm: React.Dispatch<React.SetStateAction<RubricFormState>>,
+    cIndex: number,
+    level: string,
+    value: string,
+  ) => {
+    setForm((f) => {
+      const criteria = [...f.criteria];
+      criteria[cIndex] = {
+        ...criteria[cIndex],
+        descriptors: { ...criteria[cIndex].descriptors, [level]: value },
+      };
+      return { ...f, criteria };
+    });
+  };
+
+  const renderForm = (
+    form: RubricFormState,
+    setForm: React.Dispatch<React.SetStateAction<RubricFormState>>,
+  ) => {
+    const levelsArr = [...form.levels].sort(
+      (a, b) => ALL_CEFR_LEVELS.indexOf(a) - ALL_CEFR_LEVELS.indexOf(b)
+    );
+    const totalWeight = form.criteria.reduce((s, c) => s + (c.weight || 0), 0);
+
+    return (
+      <div className="space-y-4">
+        <div className="space-y-2">
+          <Label>Rubric Name <span className="text-destructive">*</span></Label>
+          <Input
+            value={form.name}
+            onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))}
+            placeholder="e.g. IELTS Writing Task 1"
+          />
+        </div>
+        <div className="grid grid-cols-2 gap-4">
+          <div className="space-y-2">
+            <Label>Skill</Label>
+            <Select value={form.skill} onValueChange={(v) => setForm((f) => ({ ...f, skill: v }))}>
+              <SelectTrigger><SelectValue /></SelectTrigger>
+              <SelectContent>
+                {SKILL_OPTIONS.map((o) => (
+                  <SelectItem key={o.value} value={o.value}>{o.label}</SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+          <div className="space-y-2">
+            <Label>Exam Type</Label>
+            <Select value={form.exam_type} onValueChange={(v) => setForm((f) => ({ ...f, exam_type: v }))}>
+              <SelectTrigger><SelectValue /></SelectTrigger>
+              <SelectContent>
+                {EXAM_TYPE_OPTIONS.map((o) => (
+                  <SelectItem key={o.value} value={o.value}>{o.label}</SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+        </div>
+
+        <div className="space-y-2">
+          <Label>CEFR Levels</Label>
+          <div className="flex flex-wrap gap-2">
+            {ALL_CEFR_LEVELS.map((level) => {
+              const checked = form.levels.has(level);
+              return (
+                <label
+                  key={level}
+                  className={`flex items-center gap-1.5 rounded-md border px-3 py-1.5 cursor-pointer transition-all text-sm font-medium ${
+                    checked ? "bg-primary/10 border-primary text-primary" : "hover:bg-muted/50"
+                  }`}
+                >
+                  <Checkbox
+                    checked={checked}
+                    onCheckedChange={(val) => {
+                      setForm((f) => {
+                        const next = new Set(f.levels);
+                        if (val) next.add(level); else next.delete(level);
+                        return { ...f, levels: next };
+                      });
+                    }}
+                  />
+                  {level}
+                </label>
+              );
+            })}
+          </div>
+        </div>
+
+        <div className="space-y-3">
+          <div className="flex items-center justify-between">
+            <div>
+              <Label>Criteria</Label>
+              {form.criteria.length > 0 && (
+                <span className={`ml-2 text-xs ${totalWeight === 100 ? "text-green-600" : "text-amber-600"}`}>
+                  (Total weight: {totalWeight}%)
+                </span>
+              )}
+            </div>
+            <Button
+              type="button"
+              size="sm"
+              className="h-8 bg-gradient-to-r from-violet-500 to-indigo-500 text-white hover:from-violet-600 hover:to-indigo-600"
+              disabled={suggesting}
+              onClick={() => suggestCriteria(form, setForm)}
+            >
+              {suggesting
+                ? <><Loader2 className="h-3.5 w-3.5 mr-1.5 animate-spin" /> Generating...</>
+                : <><Sparkles className="h-3.5 w-3.5 mr-1.5" /> Generate with AI</>
+              }
+            </Button>
+          </div>
+
+          {suggesting ? (
+            <div className="flex flex-col items-center justify-center py-8 gap-2 text-muted-foreground rounded-lg border border-dashed border-violet-300 bg-violet-50/50">
+              <Loader2 className="h-6 w-6 animate-spin text-violet-500" />
+              <p className="text-sm font-medium">AI is generating criteria with band descriptors...</p>
+              <p className="text-xs">Based on {form.skill} / {form.exam_type.replace(/_/g, " ")}</p>
+            </div>
+          ) : form.criteria.length === 0 ? (
+            <div className="flex flex-col items-center justify-center py-8 gap-2 text-muted-foreground rounded-lg border border-dashed">
+              <Sparkles className="h-5 w-5 text-violet-400" />
+              <p className="text-sm">No criteria yet.</p>
+              <p className="text-xs">Click <strong>Generate with AI</strong> to create criteria automatically, or pick a preset below.</p>
+              <DropdownMenu>
+                <DropdownMenuTrigger asChild>
+                  <Button type="button" variant="outline" size="sm" className="mt-1">
+                    <Plus className="h-3 w-3 mr-1" /> Add Manually <ChevronDown className="h-3 w-3 ml-1" />
+                  </Button>
+                </DropdownMenuTrigger>
+                <DropdownMenuContent align="start" className="w-72">
+                  {(CRITERION_PRESETS[form.skill] ?? []).map((group) => (
+                    <div key={group.label}>
+                      <DropdownMenuLabel className="text-[11px] text-muted-foreground">{group.label}</DropdownMenuLabel>
+                      {group.items.map((item) => (
+                        <DropdownMenuItem
+                          key={`${group.label}-${item.name}`}
+                          onClick={() =>
+                            setForm((f) => ({
+                              ...f,
+                              criteria: [...f.criteria, emptyCriterion(f.levels, item.name, item.weight)],
+                            }))
+                          }
+                        >
+                          {item.name}
+                          <span className="ml-auto text-[11px] text-muted-foreground">{item.weight}%</span>
+                        </DropdownMenuItem>
+                      ))}
+                      <DropdownMenuSeparator />
+                    </div>
+                  ))}
+                  <DropdownMenuItem
+                    onClick={() => setForm((f) => ({ ...f, criteria: [...f.criteria, emptyCriterion(f.levels)] }))}
+                  >
+                    Custom (blank row)
+                  </DropdownMenuItem>
+                </DropdownMenuContent>
+              </DropdownMenu>
+            </div>
+          ) : (
+            <div className="space-y-3">
+              {form.criteria.map((c, ci) => (
+                <Collapsible key={ci} defaultOpen={form.criteria.length <= 3}>
+                  <div className="rounded-lg border bg-card">
+                    <div className="flex items-center gap-2 p-3">
+                      <CollapsibleTrigger asChild>
+                        <Button variant="ghost" size="icon" className="h-7 w-7 shrink-0">
+                          <ChevronDown className="h-4 w-4" />
+                        </Button>
+                      </CollapsibleTrigger>
+                      <Input
+                        value={c.name}
+                        onChange={(e) => updateCriterion(setForm, ci, { name: e.target.value })}
+                        placeholder="Criterion name"
+                        className="flex-1 h-8 font-medium"
+                      />
+                      <div className="flex items-center gap-1 shrink-0">
+                        <Input
+                          type="number"
+                          min={0}
+                          max={100}
+                          value={c.weight}
+                          onChange={(e) => updateCriterion(setForm, ci, { weight: Number(e.target.value) })}
+                          className="w-16 h-8 text-center text-sm"
+                        />
+                        <span className="text-xs text-muted-foreground">%</span>
+                      </div>
+                      <Button
+                        type="button"
+                        variant="ghost"
+                        size="icon"
+                        className="h-7 w-7 shrink-0 text-muted-foreground hover:text-destructive"
+                        onClick={() => setForm((f) => ({ ...f, criteria: f.criteria.filter((_, i) => i !== ci) }))}
+                      >
+                        <X className="h-4 w-4" />
+                      </Button>
+                    </div>
+                    <CollapsibleContent>
+                      <div className="px-3 pb-3 pt-0 border-t">
+                        <p className="text-xs text-muted-foreground my-2">Band level descriptors:</p>
+                        <div className="space-y-2">
+                          {levelsArr.map((level) => (
+                            <div key={level} className="flex gap-2 items-start">
+                              <Badge variant="outline" className="mt-1.5 shrink-0 w-9 justify-center text-xs">{level}</Badge>
+                              <Textarea
+                                value={c.descriptors[level] || ""}
+                                onChange={(e) => updateDescriptor(setForm, ci, level, e.target.value)}
+                                placeholder={`Performance descriptor for ${level}...`}
+                                className="min-h-[40px] h-10 text-sm resize-none"
+                              />
+                            </div>
+                          ))}
+                        </div>
+                      </div>
+                    </CollapsibleContent>
+                  </div>
+                </Collapsible>
+              ))}
+              <DropdownMenu>
+                <DropdownMenuTrigger asChild>
+                  <Button type="button" variant="outline" size="sm" className="w-full">
+                    <Plus className="h-3 w-3 mr-1" /> Add Criterion <ChevronDown className="h-3 w-3 ml-1" />
+                  </Button>
+                </DropdownMenuTrigger>
+                <DropdownMenuContent align="start" className="w-72">
+                  {(CRITERION_PRESETS[form.skill] ?? []).map((group) => (
+                    <div key={group.label}>
+                      <DropdownMenuLabel className="text-[11px] text-muted-foreground">{group.label}</DropdownMenuLabel>
+                      {group.items.map((item) => (
+                        <DropdownMenuItem
+                          key={`${group.label}-${item.name}`}
+                          onClick={() =>
+                            setForm((f) => ({
+                              ...f,
+                              criteria: [...f.criteria, emptyCriterion(f.levels, item.name, item.weight)],
+                            }))
+                          }
+                        >
+                          {item.name}
+                          <span className="ml-auto text-[11px] text-muted-foreground">{item.weight}%</span>
+                        </DropdownMenuItem>
+                      ))}
+                      <DropdownMenuSeparator />
+                    </div>
+                  ))}
+                  <DropdownMenuItem
+                    onClick={() => setForm((f) => ({ ...f, criteria: [...f.criteria, emptyCriterion(f.levels)] }))}
+                  >
+                    Custom (blank row)
+                  </DropdownMenuItem>
+                </DropdownMenuContent>
+              </DropdownMenu>
+            </div>
+          )}
+        </div>
+      </div>
+    );
+  };
+
   return (
     <div className="space-y-6">
       <div className="flex items-center justify-between">
@@ -35,25 +648,25 @@ export default function RubricsPage() {
         </div>
         <div className="flex gap-2">
           <AiCreationAssistant type="rubric" />
-          <Dialog>
+          <Dialog open={createOpen} onOpenChange={(open) => { setCreateOpen(open); if (!open) setCreateForm(emptyForm()); }}>
             <DialogTrigger asChild>
               <Button size="sm"><Plus className="h-4 w-4 mr-1" /> Create Rubric</Button>
             </DialogTrigger>
-            <DialogContent className="max-w-2xl">
+            <DialogContent className="max-w-2xl max-h-[85vh] overflow-y-auto">
-              <DialogHeader><DialogTitle>Create Rubric</DialogTitle></DialogHeader>
+              <DialogHeader>
-              <div className="space-y-4">
+                <DialogTitle>Create Rubric</DialogTitle>
-                <div className="space-y-2"><Label>Rubric Name</Label><Input placeholder="e.g. IELTS Writing Task 1" /></div>
+                <DialogDescription>Define a scoring rubric. Use AI to generate criteria or add them manually.</DialogDescription>
-                <div className="space-y-3">
+              </DialogHeader>
-                  <Label>Level Descriptors</Label>
+              {renderForm(createForm, setCreateForm)}
-                  {["A1","A2","B1","B2","C1","C2"].map(level => (
+              <DialogFooter>
-                    <div key={level} className="space-y-1">
+                <Button variant="outline" onClick={() => setCreateOpen(false)}>Cancel</Button>
-                      <Label className="text-xs text-muted-foreground">{level}</Label>
+                <Button
-                      <Textarea placeholder={`Descriptor for level ${level}...`} className="h-16" />
+                  disabled={!createForm.name.trim() || createForm.criteria.filter((c) => c.name.trim()).length === 0 || createMut.isPending}
-                    </div>
+                  onClick={() => createMut.mutate(formToPayload(createForm))}
-                  ))}
+                >
-                </div>
+                  {createMut.isPending ? <><Loader2 className="h-4 w-4 animate-spin mr-2" />Creating...</> : "Create"}
-                <Button className="w-full">Create Rubric</Button>
+                </Button>
-              </div>
+              </DialogFooter>
             </DialogContent>
           </Dialog>
         </div>
@@ -72,51 +685,248 @@ export default function RubricsPage() {
           <TabsTrigger value="groups">Rubric Groups</TabsTrigger>
         </TabsList>
         <TabsContent value="rubrics" className="mt-4">
-          <Card className="border-0 shadow-sm">
+          {rubricsQ.isLoading && (
-            <CardContent className="p-0">
+            <div className="flex items-center justify-center py-12">
-              <Table>
+              <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
-                <TableHeader>
+            </div>
-                  <TableRow>
+          )}
-                    <TableHead>Name</TableHead><TableHead>Levels</TableHead><TableHead>Criteria</TableHead><TableHead>Created</TableHead>
+          {rubricsQ.error && (
-                  </TableRow>
+            <Card className="border-destructive">
-                </TableHeader>
+              <CardContent className="p-4 text-sm text-destructive">
-                <TableBody>
+                Failed to load rubrics. The backend endpoint may not be available yet.
-                  {rubrics.map((r) => (
+              </CardContent>
-                    <TableRow key={r.id}>
+            </Card>
-                      <TableCell className="font-medium">{r.name}</TableCell>
+          )}
-                      <TableCell><div className="flex gap-1">{r.levels.map(l => <Badge key={l} variant="outline" className="text-xs">{l}</Badge>)}</div></TableCell>
+          {!rubricsQ.isLoading && !rubricsQ.error && filtered.length === 0 && (
-                      <TableCell>{r.criteria}</TableCell>
+            <Card className="border-dashed">
-                      <TableCell>{r.created}</TableCell>
+              <CardContent className="p-8 text-center text-muted-foreground">
+                No rubrics found. Create one to get started.
+              </CardContent>
+            </Card>
+          )}
+          {!rubricsQ.isLoading && filtered.length > 0 && (
+            <Card className="border-0 shadow-sm">
+              <CardContent className="p-0">
+                <Table>
+                  <TableHeader>
+                    <TableRow>
+                      <TableHead>Name</TableHead>
+                      <TableHead>Skill</TableHead>
+                      <TableHead>Exam Type</TableHead>
+                      <TableHead>Levels</TableHead>
+                      <TableHead>Criteria</TableHead>
+                      <TableHead>Created</TableHead>
+                      <TableHead className="w-[90px]">Actions</TableHead>
                     </TableRow>
-                  ))}
+                  </TableHeader>
-                </TableBody>
+                  <TableBody>
-              </Table>
+                    {filtered.map((r) => (
-            </CardContent>
+                      <TableRow key={r.id} className="cursor-pointer hover:bg-muted/50" onClick={() => openEdit(r)}>
-          </Card>
+                        <TableCell className="font-medium">{r.name}</TableCell>
+                        <TableCell><Badge variant="secondary" className="capitalize">{r.skill || "—"}</Badge></TableCell>
+                        <TableCell className="capitalize text-sm">{r.exam_type?.replace(/_/g, " ") || "—"}</TableCell>
+                        <TableCell>
+                          <div className="flex gap-1">
+                            {(r.levels || ALL_CEFR_LEVELS).map((l) => (
+                              <Badge key={l} variant="outline" className="text-xs">{l}</Badge>
+                            ))}
+                          </div>
+                        </TableCell>
+                        <TableCell>{r.criteria}</TableCell>
+                        <TableCell className="text-sm text-muted-foreground">{r.created}</TableCell>
+                        <TableCell>
+                          <div className="flex gap-1">
+                            <Button variant="ghost" size="icon" className="h-8 w-8"
+                              onClick={(e) => { e.stopPropagation(); openEdit(r); }}>
+                              <Pencil className="h-4 w-4" />
+                            </Button>
+                            <Button variant="ghost" size="icon" className="h-8 w-8 text-destructive"
+                              onClick={(e) => { e.stopPropagation(); deleteMut.mutate(r.id); }}
+                              disabled={deleteMut.isPending}>
+                              <Trash2 className="h-4 w-4" />
+                            </Button>
+                          </div>
+                        </TableCell>
+                      </TableRow>
+                    ))}
+                  </TableBody>
+                </Table>
+              </CardContent>
+            </Card>
+          )}
         </TabsContent>
         <TabsContent value="groups" className="mt-4">
-          <Card className="border-0 shadow-sm">
+          <div className="flex justify-end mb-3">
-            <CardContent className="p-0">
+            <Button size="sm" onClick={() => { setGroupCreateForm(emptyGroupForm()); setGroupCreateOpen(true); }}>
-              <Table>
+              <Plus className="h-4 w-4 mr-1" /> Create Group
-                <TableHeader>
+            </Button>
-                  <TableRow>
+          </div>
-                    <TableHead>Group Name</TableHead><TableHead>Rubrics</TableHead><TableHead>Created</TableHead>
+          {rubricGroupsQ.isLoading && (
-                  </TableRow>
+            <div className="flex justify-center py-8"><Loader2 className="h-6 w-6 animate-spin text-muted-foreground" /></div>
-                </TableHeader>
+          )}
-                <TableBody>
+          {!rubricGroupsQ.isLoading && rubricGroups.length === 0 && (
-                  {rubricGroups.map((g) => (
+            <Card className="border-dashed"><CardContent className="p-8 text-center text-muted-foreground text-sm">No rubric groups yet. Create one to bundle rubrics together.</CardContent></Card>
-                    <TableRow key={g.id}>
+          )}
-                      <TableCell className="font-medium">{g.name}</TableCell>
+          {!rubricGroupsQ.isLoading && rubricGroups.length > 0 && (
-                      <TableCell><div className="flex gap-1 flex-wrap">{g.rubrics.map(r => <Badge key={r} variant="secondary" className="text-xs">{r}</Badge>)}</div></TableCell>
+            <Card className="border-0 shadow-sm">
-                      <TableCell>{g.created}</TableCell>
+              <CardContent className="p-0">
+                <Table>
+                  <TableHeader>
+                    <TableRow>
+                      <TableHead>Group Name</TableHead>
+                      <TableHead>Rubrics</TableHead>
+                      <TableHead>Created</TableHead>
+                      <TableHead className="w-24 text-right">Actions</TableHead>
                     </TableRow>
-                  ))}
+                  </TableHeader>
-                </TableBody>
+                  <TableBody>
-              </Table>
+                    {rubricGroups.map((g) => (
-            </CardContent>
+                      <TableRow key={g.id}>
-          </Card>
+                        <TableCell className="font-medium">{g.name}</TableCell>
+                        <TableCell>
+                          <div className="flex gap-1 flex-wrap">
+                            {(g.rubric_names ?? []).map((rb) => (
+                              <Badge key={rb} variant="secondary" className="text-xs">{rb}</Badge>
+                            ))}
+                            {(!g.rubric_names || g.rubric_names.length === 0) && (
+                              <span className="text-xs text-muted-foreground italic">No rubrics</span>
+                            )}
+                          </div>
+                        </TableCell>
+                        <TableCell>{g.created}</TableCell>
+                        <TableCell className="text-right">
+                          <div className="flex justify-end gap-1">
+                            <Button variant="ghost" size="icon" className="h-7 w-7" onClick={() => {
+                              setGroupEditTarget({ id: g.id, name: g.name, rubric_ids: g.rubric_ids });
+                              setGroupEditForm({ name: g.name, rubric_ids: new Set(g.rubric_ids) });
+                            }}>
+                              <Pencil className="h-3.5 w-3.5" />
+                            </Button>
+                            <Button variant="ghost" size="icon" className="h-7 w-7 text-destructive hover:text-destructive"
+                              onClick={() => { if (confirm(`Delete group "${g.name}"?`)) deleteGroupMut.mutate(g.id); }}>
+                              <Trash2 className="h-3.5 w-3.5" />
+                            </Button>
+                          </div>
+                        </TableCell>
+                      </TableRow>
+                    ))}
+                  </TableBody>
+                </Table>
+              </CardContent>
+            </Card>
+          )}
+
+          {/* Create Group Dialog */}
+          <Dialog open={groupCreateOpen} onOpenChange={setGroupCreateOpen}>
+            <DialogContent className="max-w-md">
+              <DialogHeader>
+                <DialogTitle>Create Rubric Group</DialogTitle>
+                <DialogDescription>Bundle multiple rubrics into a group for easy selection.</DialogDescription>
+              </DialogHeader>
+              <div className="space-y-4 py-2">
+                <div className="space-y-1">
+                  <Label>Group Name <span className="text-destructive">*</span></Label>
+                  <Input value={groupCreateForm.name} onChange={(e) => setGroupCreateForm((p) => ({ ...p, name: e.target.value }))} placeholder="e.g. Academic IELTS Full" />
+                </div>
+                <div className="space-y-1">
+                  <Label>Select Rubrics</Label>
+                  <div className="max-h-48 overflow-y-auto border rounded-md p-2 space-y-1">
+                    {rubrics.map((r) => (
+                      <label key={r.id} className="flex items-center gap-2 text-sm cursor-pointer hover:bg-muted/50 rounded px-1 py-0.5">
+                        <Checkbox checked={groupCreateForm.rubric_ids.has(r.id)}
+                          onCheckedChange={(checked) => {
+                            setGroupCreateForm((p) => {
+                              const next = new Set(p.rubric_ids);
+                              checked ? next.add(r.id) : next.delete(r.id);
+                              return { ...p, rubric_ids: next };
+                            });
+                          }} className="h-3.5 w-3.5" />
+                        {r.name}
+                        <Badge variant="outline" className="text-[10px] ml-auto">{r.skill}</Badge>
+                      </label>
+                    ))}
+                    {rubrics.length === 0 && <p className="text-xs text-muted-foreground italic py-2 text-center">No rubrics available</p>}
+                  </div>
+                </div>
+              </div>
+              <DialogFooter>
+                <Button variant="outline" onClick={() => setGroupCreateOpen(false)}>Cancel</Button>
+                <Button disabled={!groupCreateForm.name.trim() || createGroupMut.isPending}
+                  onClick={() => createGroupMut.mutate({ name: groupCreateForm.name.trim(), rubric_ids: [...groupCreateForm.rubric_ids] })}>
+                  {createGroupMut.isPending ? <><Loader2 className="h-4 w-4 animate-spin mr-2" />Creating...</> : "Create Group"}
+                </Button>
+              </DialogFooter>
+            </DialogContent>
+          </Dialog>
+
+          {/* Edit Group Dialog */}
+          <Dialog open={!!groupEditTarget} onOpenChange={(open) => { if (!open) setGroupEditTarget(null); }}>
+            <DialogContent className="max-w-md">
+              <DialogHeader>
+                <DialogTitle>Edit Rubric Group</DialogTitle>
+                <DialogDescription>Update the group name and selected rubrics.</DialogDescription>
+              </DialogHeader>
+              <div className="space-y-4 py-2">
+                <div className="space-y-1">
+                  <Label>Group Name <span className="text-destructive">*</span></Label>
+                  <Input value={groupEditForm.name} onChange={(e) => setGroupEditForm((p) => ({ ...p, name: e.target.value }))} />
+                </div>
+                <div className="space-y-1">
+                  <Label>Select Rubrics</Label>
+                  <div className="max-h-48 overflow-y-auto border rounded-md p-2 space-y-1">
+                    {rubrics.map((r) => (
+                      <label key={r.id} className="flex items-center gap-2 text-sm cursor-pointer hover:bg-muted/50 rounded px-1 py-0.5">
+                        <Checkbox checked={groupEditForm.rubric_ids.has(r.id)}
+                          onCheckedChange={(checked) => {
+                            setGroupEditForm((p) => {
+                              const next = new Set(p.rubric_ids);
+                              checked ? next.add(r.id) : next.delete(r.id);
+                              return { ...p, rubric_ids: next };
+                            });
+                          }} className="h-3.5 w-3.5" />
+                        {r.name}
+                        <Badge variant="outline" className="text-[10px] ml-auto">{r.skill}</Badge>
+                      </label>
+                    ))}
+                  </div>
+                </div>
+              </div>
+              <DialogFooter>
+                <Button variant="outline" onClick={() => setGroupEditTarget(null)}>Cancel</Button>
+                <Button disabled={!groupEditForm.name.trim() || updateGroupMut.isPending}
+                  onClick={() => {
+                    if (!groupEditTarget) return;
+                    updateGroupMut.mutate({ id: groupEditTarget.id, data: { name: groupEditForm.name.trim(), rubric_ids: [...groupEditForm.rubric_ids] } });
+                  }}>
+                  {updateGroupMut.isPending ? <><Loader2 className="h-4 w-4 animate-spin mr-2" />Saving...</> : "Save Changes"}
+                </Button>
+              </DialogFooter>
+            </DialogContent>
+          </Dialog>
         </TabsContent>
       </Tabs>
+
+      <Dialog open={!!editTarget} onOpenChange={(open) => { if (!open) setEditTarget(null); }}>
+        <DialogContent className="max-w-2xl max-h-[85vh] overflow-y-auto">
+          <DialogHeader>
+            <DialogTitle>Edit Rubric</DialogTitle>
+            <DialogDescription>Update the rubric details below. Use AI to regenerate criteria.</DialogDescription>
+          </DialogHeader>
+          {renderForm(editForm, setEditForm)}
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setEditTarget(null)}>Cancel</Button>
+            <Button
+              disabled={!editForm.name.trim() || editForm.criteria.filter((c) => c.name.trim()).length === 0 || updateMut.isPending}
+              onClick={() => {
+                if (!editTarget) return;
+                updateMut.mutate({ id: editTarget.id, data: formToPayload(editForm) });
+              }}
+            >
+              {updateMut.isPending ? <><Loader2 className="h-4 w-4 animate-spin mr-2" />Saving...</> : "Save Changes"}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

src/pages/SettingsPage.tsx

@@ -1,33 +1,142 @@
+import { useEffect, useState } from "react";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { Label } from "@/components/ui/label";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
 import { Badge } from "@/components/ui/badge";
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogTrigger } from "@/components/ui/dialog";
+import {
-import { Plus, Trash2, Copy } from "lucide-react";
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { Plus, Trash2, Copy, Loader2 } from "lucide-react";
 import AiTipBanner from "@/components/ai/AiTipBanner";
-
+import { useToast } from "@/hooks/use-toast";
-const codes = [
+import {
-  { code: "ENCOACH-2025-A1B2", type: "Single", used: false, created: "2025-01-10" },
+  platformSettingsService,
-  { code: "ENCOACH-2025-C3D4", type: "Single", used: true, created: "2025-01-12" },
+  type GradingConfig,
-  { code: "BATCH-2025-E5F6", type: "Batch", used: false, created: "2025-02-01" },
+  type PlatformPackage,
-  { code: "BATCH-2025-G7H8", type: "Batch", used: false, created: "2025-02-01" },
+  type RegistrationCode,
-];
+} from "@/services/platformSettings.service";
-
-const packages = [
-  { id: 1, name: "IELTS Starter", price: 99, duration: "1 month", discount: 0 },
-  { id: 2, name: "IELTS Pro", price: 249, duration: "3 months", discount: 15 },
-  { id: 3, name: "Corporate Bundle", price: 1999, duration: "12 months", discount: 25 },
-];
 
 export default function SettingsPage() {
+  const { toast } = useToast();
+  const qc = useQueryClient();
+
+  // ── Codes ──────────────────────────────────────────────────────────
+  const codesQ = useQuery({
+    queryKey: ["codes"],
+    queryFn: () => platformSettingsService.listCodes(),
+  });
+  const codes: RegistrationCode[] = codesQ.data?.items ?? [];
+
+  const genMut = useMutation({
+    mutationFn: platformSettingsService.generateCodes,
+    onSuccess: (r) => {
+      qc.invalidateQueries({ queryKey: ["codes"] });
+      toast({ title: `Generated ${r.count} code(s)` });
+    },
+    onError: () =>
+      toast({ title: "Failed to generate codes", variant: "destructive" }),
+  });
+  const delCodeMut = useMutation({
+    mutationFn: platformSettingsService.deleteCode,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["codes"] });
+      toast({ title: "Code deleted" });
+    },
+  });
+
+  // ── Packages ───────────────────────────────────────────────────────
+  const pkgQ = useQuery({
+    queryKey: ["packages"],
+    queryFn: () => platformSettingsService.listPackages(),
+  });
+  const packages: PlatformPackage[] = pkgQ.data?.items ?? [];
+  const [pkgOpen, setPkgOpen] = useState(false);
+  const [pkgForm, setPkgForm] = useState<Omit<PlatformPackage, "id">>({
+    name: "",
+    price: 0,
+    duration: "1 month",
+    discount: 0,
+  });
+  const createPkgMut = useMutation({
+    mutationFn: platformSettingsService.createPackage,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["packages"] });
+      setPkgOpen(false);
+      setPkgForm({ name: "", price: 0, duration: "1 month", discount: 0 });
+      toast({ title: "Package created" });
+    },
+  });
+  const delPkgMut = useMutation({
+    mutationFn: platformSettingsService.deletePackage,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["packages"] });
+      toast({ title: "Package deleted" });
+    },
+  });
+
+  // ── Grading config ─────────────────────────────────────────────────
+  const gradingQ = useQuery({
+    queryKey: ["grading-config"],
+    queryFn: () => platformSettingsService.getGrading(),
+  });
+  const [grading, setGrading] = useState<GradingConfig>({
+    min_score: 0,
+    max_score: 9,
+    increment: 0.5,
+  });
+  useEffect(() => {
+    if (gradingQ.data) {
+      setGrading({
+        min_score: gradingQ.data.min_score,
+        max_score: gradingQ.data.max_score,
+        increment: gradingQ.data.increment,
+      });
+    }
+  }, [gradingQ.data]);
+  const saveGradingMut = useMutation({
+    mutationFn: platformSettingsService.setGrading,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["grading-config"] });
+      toast({ title: "Grading configuration saved" });
+    },
+    onError: (err: unknown) => {
+      const msg =
+        err && typeof err === "object" && "message" in err
+          ? String((err as { message: unknown }).message)
+          : "Failed to save";
+      toast({ title: msg, variant: "destructive" });
+    },
+  });
+
   return (
     <div className="space-y-6">
       <div>
         <h1 className="text-2xl font-bold tracking-tight">Settings</h1>
-        <p className="text-muted-foreground">Manage codes, packages, discounts, and grading system.</p>
+        <p className="text-muted-foreground">
+          Manage registration codes, packages, and the grading scale.
+        </p>
       </div>
 
       <Tabs defaultValue="codes">
@@ -37,26 +146,107 @@ export default function SettingsPage() {
           <TabsTrigger value="grading">Grading System</TabsTrigger>
         </TabsList>
 
+        {/* CODES */}
         <TabsContent value="codes" className="mt-4 space-y-4">
-          <AiTipBanner tip="2 batch codes have been unused for over 30 days. Consider sending reminder emails to the assigned entities or recycling unused codes." variant="insight" />
+          <AiTipBanner context="settings-codes" variant="insight" />
           <div className="flex gap-2">
-            <Button size="sm"><Plus className="h-4 w-4 mr-1" /> Generate Single</Button>
+            <Button
-            <Button size="sm" variant="outline"><Copy className="h-4 w-4 mr-1" /> Generate Batch</Button>
+              size="sm"
+              disabled={genMut.isPending}
+              onClick={() =>
+                genMut.mutate({
+                  count: 1,
+                  code_type: "individual",
+                  user_type: "student",
+                  max_uses: 1,
+                })
+              }
+            >
+              {genMut.isPending ? (
+                <Loader2 className="h-4 w-4 mr-1 animate-spin" />
+              ) : (
+                <Plus className="h-4 w-4 mr-1" />
+              )}{" "}
+              Generate Single
+            </Button>
+            <Button
+              size="sm"
+              variant="outline"
+              disabled={genMut.isPending}
+              onClick={() =>
+                genMut.mutate({
+                  count: 10,
+                  code_type: "corporate",
+                  user_type: "corporate",
+                  max_uses: 50,
+                })
+              }
+            >
+              <Copy className="h-4 w-4 mr-1" /> Generate Batch (10)
+            </Button>
           </div>
           <Card className="border-0 shadow-sm">
             <CardContent className="p-0">
               <Table>
                 <TableHeader>
-                  <TableRow><TableHead>Code</TableHead><TableHead>Type</TableHead><TableHead>Used</TableHead><TableHead>Created</TableHead><TableHead className="w-10"></TableHead></TableRow>
+                  <TableRow>
+                    <TableHead>Code</TableHead>
+                    <TableHead>Type</TableHead>
+                    <TableHead>User</TableHead>
+                    <TableHead>Uses</TableHead>
+                    <TableHead>State</TableHead>
+                    <TableHead>Created</TableHead>
+                    <TableHead className="w-10"></TableHead>
+                  </TableRow>
                 </TableHeader>
                 <TableBody>
+                  {codesQ.isLoading && (
+                    <TableRow>
+                      <TableCell colSpan={7} className="text-center py-8">
+                        <Loader2 className="h-5 w-5 animate-spin mx-auto" />
+                      </TableCell>
+                    </TableRow>
+                  )}
+                  {!codesQ.isLoading && codes.length === 0 && (
+                    <TableRow>
+                      <TableCell
+                        colSpan={7}
+                        className="text-center text-muted-foreground py-8"
+                      >
+                        No codes yet. Click Generate Single to create one.
+                      </TableCell>
+                    </TableRow>
+                  )}
                   {codes.map((c) => (
-                    <TableRow key={c.code}>
+                    <TableRow key={c.id}>
                       <TableCell className="font-mono text-xs">{c.code}</TableCell>
-                      <TableCell><Badge variant="outline">{c.type}</Badge></TableCell>
+                      <TableCell>
-                      <TableCell><Badge variant={c.used ? "secondary" : "default"}>{c.used ? "Used" : "Available"}</Badge></TableCell>
+                        <Badge variant="outline">{c.code_type}</Badge>
-                      <TableCell>{c.created}</TableCell>
+                      </TableCell>
-                      <TableCell><Button variant="ghost" size="icon" className="h-8 w-8 text-destructive"><Trash2 className="h-4 w-4" /></Button></TableCell>
+                      <TableCell className="text-sm text-muted-foreground">
+                        {c.user_type}
+                      </TableCell>
+                      <TableCell className="text-sm">
+                        {c.uses}/{c.max_uses}
+                      </TableCell>
+                      <TableCell>
+                        <Badge variant={c.used ? "secondary" : "default"}>
+                          {c.used ? "Used" : "Available"}
+                        </Badge>
+                      </TableCell>
+                      <TableCell className="text-xs text-muted-foreground">
+                        {c.created ? new Date(c.created).toLocaleDateString() : "—"}
+                      </TableCell>
+                      <TableCell>
+                        <Button
+                          variant="ghost"
+                          size="icon"
+                          className="h-8 w-8 text-destructive"
+                          onClick={() => delCodeMut.mutate(c.id)}
+                        >
+                          <Trash2 className="h-4 w-4" />
+                        </Button>
+                      </TableCell>
                     </TableRow>
                   ))}
                 </TableBody>
@@ -65,35 +255,186 @@ export default function SettingsPage() {
           </Card>
         </TabsContent>
 
+        {/* PACKAGES */}
         <TabsContent value="packages" className="mt-4 space-y-4">
-          <AiTipBanner tip="Based on conversion data, the IELTS Pro package has the highest ROI. Consider increasing the Corporate Bundle discount to 30% to boost enterprise sign-ups." variant="recommendation" />
+          <AiTipBanner context="settings-packages" variant="recommendation" />
+          <div className="flex justify-end">
+            <Button size="sm" onClick={() => setPkgOpen(true)}>
+              <Plus className="h-4 w-4 mr-1" /> Add Package
+            </Button>
+          </div>
           <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+            {pkgQ.isLoading && <Loader2 className="h-5 w-5 animate-spin" />}
             {packages.map((p) => (
               <Card key={p.id} className="border-0 shadow-sm">
-                <CardHeader className="pb-3">
+                <CardHeader className="pb-3 flex-row items-start justify-between">
                   <CardTitle className="text-base">{p.name}</CardTitle>
+                  <Button
+                    size="icon"
+                    variant="ghost"
+                    className="h-7 w-7 text-destructive"
+                    onClick={() => delPkgMut.mutate(p.id)}
+                  >
+                    <Trash2 className="h-4 w-4" />
+                  </Button>
                 </CardHeader>
                 <CardContent className="space-y-2">
                   <p className="text-2xl font-bold">${p.price}</p>
                   <p className="text-sm text-muted-foreground">{p.duration}</p>
-                  {p.discount > 0 && <Badge variant="default">{p.discount}% OFF</Badge>}
+                  {p.discount > 0 && (
+                    <Badge variant="default">{p.discount}% OFF</Badge>
+                  )}
                 </CardContent>
               </Card>
             ))}
           </div>
+
+          <Dialog open={pkgOpen} onOpenChange={setPkgOpen}>
+            <DialogContent>
+              <DialogHeader>
+                <DialogTitle>New Package</DialogTitle>
+              </DialogHeader>
+              <div className="space-y-3">
+                <div className="space-y-2">
+                  <Label>Name</Label>
+                  <Input
+                    value={pkgForm.name}
+                    onChange={(e) =>
+                      setPkgForm((f) => ({ ...f, name: e.target.value }))
+                    }
+                  />
+                </div>
+                <div className="grid grid-cols-2 gap-3">
+                  <div className="space-y-2">
+                    <Label>Price (USD)</Label>
+                    <Input
+                      type="number"
+                      value={pkgForm.price}
+                      onChange={(e) =>
+                        setPkgForm((f) => ({
+                          ...f,
+                          price: Number(e.target.value),
+                        }))
+                      }
+                    />
+                  </div>
+                  <div className="space-y-2">
+                    <Label>Discount %</Label>
+                    <Input
+                      type="number"
+                      value={pkgForm.discount}
+                      onChange={(e) =>
+                        setPkgForm((f) => ({
+                          ...f,
+                          discount: Number(e.target.value),
+                        }))
+                      }
+                    />
+                  </div>
+                </div>
+                <div className="space-y-2">
+                  <Label>Duration</Label>
+                  <Select
+                    value={pkgForm.duration}
+                    onValueChange={(v) =>
+                      setPkgForm((f) => ({ ...f, duration: v }))
+                    }
+                  >
+                    <SelectTrigger>
+                      <SelectValue />
+                    </SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value="1 month">1 month</SelectItem>
+                      <SelectItem value="3 months">3 months</SelectItem>
+                      <SelectItem value="6 months">6 months</SelectItem>
+                      <SelectItem value="12 months">12 months</SelectItem>
+                    </SelectContent>
+                  </Select>
+                </div>
+              </div>
+              <DialogFooter>
+                <Button variant="outline" onClick={() => setPkgOpen(false)}>
+                  Cancel
+                </Button>
+                <Button
+                  disabled={!pkgForm.name || createPkgMut.isPending}
+                  onClick={() => createPkgMut.mutate(pkgForm)}
+                >
+                  {createPkgMut.isPending ? (
+                    <>
+                      <Loader2 className="h-4 w-4 mr-1 animate-spin" /> Creating…
+                    </>
+                  ) : (
+                    "Create"
+                  )}
+                </Button>
+              </DialogFooter>
+            </DialogContent>
+          </Dialog>
         </TabsContent>
 
+        {/* GRADING */}
         <TabsContent value="grading" className="mt-4 space-y-4">
-          <AiTipBanner tip="Current 0.5 increment scoring aligns with official IELTS band scoring. AI recommends keeping this configuration for standardised assessment." variant="tip" />
+          <AiTipBanner context="settings-grading" variant="tip" />
           <Card className="border-0 shadow-sm max-w-lg">
-            <CardHeader><CardTitle className="text-base">Scoring Scale</CardTitle></CardHeader>
+            <CardHeader>
+              <CardTitle className="text-base">Scoring Scale</CardTitle>
+            </CardHeader>
             <CardContent className="space-y-4">
               <div className="grid grid-cols-2 gap-3">
-                <div className="space-y-2"><Label>Min Score</Label><Input type="number" defaultValue="0" /></div>
+                <div className="space-y-2">
-                <div className="space-y-2"><Label>Max Score</Label><Input type="number" defaultValue="9" /></div>
+                  <Label>Min Score</Label>
+                  <Input
+                    type="number"
+                    value={grading.min_score}
+                    onChange={(e) =>
+                      setGrading((g) => ({
+                        ...g,
+                        min_score: Number(e.target.value),
+                      }))
+                    }
+                  />
+                </div>
+                <div className="space-y-2">
+                  <Label>Max Score</Label>
+                  <Input
+                    type="number"
+                    value={grading.max_score}
+                    onChange={(e) =>
+                      setGrading((g) => ({
+                        ...g,
+                        max_score: Number(e.target.value),
+                      }))
+                    }
+                  />
+                </div>
               </div>
-              <div className="space-y-2"><Label>Score Increment</Label><Input type="number" defaultValue="0.5" step="0.5" /></div>
+              <div className="space-y-2">
-              <Button>Save Grading Configuration</Button>
+                <Label>Score Increment</Label>
+                <Input
+                  type="number"
+                  step="0.5"
+                  value={grading.increment}
+                  onChange={(e) =>
+                    setGrading((g) => ({
+                      ...g,
+                      increment: Number(e.target.value),
+                    }))
+                  }
+                />
+              </div>
+              <Button
+                disabled={saveGradingMut.isPending}
+                onClick={() => saveGradingMut.mutate(grading)}
+              >
+                {saveGradingMut.isPending ? (
+                  <>
+                    <Loader2 className="h-4 w-4 mr-1 animate-spin" /> Saving…
+                  </>
+                ) : (
+                  "Save Grading Configuration"
+                )}
+              </Button>
             </CardContent>
           </Card>
         </TabsContent>

src/pages/StatsCorporatePage.tsx

@@ -1,133 +1,266 @@
 import { useState } from "react";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { useQuery } from "@tanstack/react-query";
+import {
+  Card,
+  CardContent,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
 import { Button } from "@/components/ui/button";
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
-import { BarChart, Bar, XAxis, YAxis, CartesianGrid, Tooltip, ResponsiveContainer, LineChart, Line, PieChart, Pie, Cell } from "recharts";
+import {
+  BarChart,
+  Bar,
+  XAxis,
+  YAxis,
+  CartesianGrid,
+  Tooltip,
+  ResponsiveContainer,
+  LineChart,
+  Line,
+  PieChart,
+  Pie,
+  Cell,
+} from "recharts";
+import { Loader2 } from "lucide-react";
 import AiReportNarrative from "@/components/ai/AiReportNarrative";
-
+import { reportsService } from "@/services/reports.service";
-const tabNarratives: Record<string, string> = {
-  overview: "Writing scores (61%) are significantly lower than other modules. Consider allocating more teaching resources to writing workshops. Reading leads at 72%, suggesting current materials are effective.",
-  trends: "Scores have shown a consistent upward trend of +14 points over 6 months. The plateau in April correlates with mid-term exam stress. June's 72% is the highest recorded average this year.",
-  distribution: "B1 is the largest cohort at 30%, indicating most students are at intermediate level. Only 3% reach C2 — consider creating more advanced pathways to support progression from C1.",
-  comparison: "Attendance dropped 8% in the second week of March, correlating with the mid-term assignment deadline. Consider spacing deadlines more evenly across the term.",
-};
 
 const thresholds = ["0%", "50%", "70%", "90%"];
 
-const barData = [
-  { module: "Reading", score: 72 },
-  { module: "Listening", score: 68 },
-  { module: "Writing", score: 61 },
-  { module: "Speaking", score: 65 },
-];
-
-const trendData = [
-  { month: "Jan", avg: 58 }, { month: "Feb", avg: 62 }, { month: "Mar", avg: 65 },
-  { month: "Apr", avg: 64 }, { month: "May", avg: 69 }, { month: "Jun", avg: 72 },
-];
-
-const distData = [
-  { name: "A1", value: 15, color: "hsl(0, 72%, 51%)" },
-  { name: "A2", value: 22, color: "hsl(38, 92%, 50%)" },
-  { name: "B1", value: 30, color: "hsl(199, 89%, 48%)" },
-  { name: "B2", value: 20, color: "hsl(243, 75%, 59%)" },
-  { name: "C1", value: 10, color: "hsl(142, 71%, 45%)" },
-  { name: "C2", value: 3, color: "hsl(280, 65%, 50%)" },
-];
-
 export default function StatsCorporatePage() {
   const [threshold, setThreshold] = useState("0%");
+  const [entityId, setEntityId] = useState("all");
+
+  const { data: filters } = useQuery({
+    queryKey: ["reports-filters"],
+    queryFn: () => reportsService.filters(),
+  });
+
+  const { data, isLoading } = useQuery({
+    queryKey: ["stats-corporate", threshold, entityId],
+    queryFn: () =>
+      reportsService.statsCorporate({
+        entity_id: entityId === "all" ? undefined : Number(entityId),
+        threshold: Number(threshold.replace("%", "")),
+        months: 6,
+      }),
+  });
+
+  const barData = data?.by_module ?? [];
+  const trendData = data?.trend ?? [];
+  const distData = data?.distribution ?? [];
+  const comparison = data?.comparison ?? [];
+  const attemptsConsidered = data?.meta.attempts_considered ?? 0;
 
   return (
     <div className="space-y-6">
       <div>
-        <h1 className="text-2xl font-bold tracking-tight">Corporate Statistics</h1>
+        <h1 className="text-2xl font-bold tracking-tight">
-        <p className="text-muted-foreground">Entity-level performance analytics and reports.</p>
+          Corporate Statistics
+        </h1>
+        <p className="text-muted-foreground">
+          Entity-level performance analytics and reports.
+          {data && (
+            <span className="ml-2 text-xs">
+              ({attemptsConsidered} scored attempts)
+            </span>
+          )}
+        </p>
       </div>
 
       <div className="flex flex-wrap gap-3 items-center">
         <div className="flex gap-1">
-          {thresholds.map(t => (
+          {thresholds.map((t) => (
-            <Button key={t} variant={threshold === t ? "default" : "outline"} size="sm" onClick={() => setThreshold(t)}>{t}</Button>
+            <Button
+              key={t}
+              variant={threshold === t ? "default" : "outline"}
+              size="sm"
+              onClick={() => setThreshold(t)}
+            >
+              {t}
+            </Button>
           ))}
         </div>
-        <Select><SelectTrigger className="w-[160px]"><SelectValue placeholder="All Entities" /></SelectTrigger>
+        <Select value={entityId} onValueChange={setEntityId}>
-          <SelectContent><SelectItem value="all">All</SelectItem><SelectItem value="acme">Acme Corp</SelectItem></SelectContent>
+          <SelectTrigger className="w-[180px]">
-        </Select>
+            <SelectValue placeholder="All Entities" />
-        <Select><SelectTrigger className="w-[180px]"><SelectValue placeholder="All Assignments" /></SelectTrigger>
+          </SelectTrigger>
-          <SelectContent><SelectItem value="all">All Assignments</SelectItem></SelectContent>
+          <SelectContent>
+            <SelectItem value="all">All Entities</SelectItem>
+            {filters?.entities.map((e) => (
+              <SelectItem key={e.id} value={String(e.id)}>
+                {e.name}
+              </SelectItem>
+            ))}
+          </SelectContent>
         </Select>
       </div>
 
-      <Tabs defaultValue="overview">
+      {isLoading ? (
-        <TabsList>
+        <div className="flex items-center justify-center p-12 text-muted-foreground">
-          <TabsTrigger value="overview">Overview</TabsTrigger>
+          <Loader2 className="h-5 w-5 animate-spin mr-2" /> Aggregating
-          <TabsTrigger value="trends">Trends</TabsTrigger>
+          attempts...
-          <TabsTrigger value="distribution">Distribution</TabsTrigger>
+        </div>
-          <TabsTrigger value="comparison">Comparison</TabsTrigger>
+      ) : attemptsConsidered === 0 ? (
-        </TabsList>
+        <Card className="border-0 shadow-sm">
+          <CardContent className="p-8 text-center text-muted-foreground">
+            No scored attempts match this threshold / entity combination yet.
+          </CardContent>
+        </Card>
+      ) : (
+        <Tabs defaultValue="overview">
+          <TabsList>
+            <TabsTrigger value="overview">Overview</TabsTrigger>
+            <TabsTrigger value="trends">Trends</TabsTrigger>
+            <TabsTrigger value="distribution">Distribution</TabsTrigger>
+            <TabsTrigger value="comparison">Comparison</TabsTrigger>
+          </TabsList>
 
-        <TabsContent value="overview" className="mt-4">
+          <TabsContent value="overview" className="mt-4">
-          <AiReportNarrative narrative={tabNarratives.overview} />
+            <AiReportNarrative
-          <Card className="border-0 shadow-sm">
+              report_type="corporate-overview"
-            <CardHeader><CardTitle className="text-base">Average Score by Module</CardTitle></CardHeader>
+              data={{ modules: barData }}
-            <CardContent>
+            />
-              <ResponsiveContainer width="100%" height={300}>
+            <Card className="border-0 shadow-sm">
-                <BarChart data={barData}>
+              <CardHeader>
-                  <CartesianGrid strokeDasharray="3 3" stroke="hsl(220, 16%, 90%)" />
+                <CardTitle className="text-base">
-                  <XAxis dataKey="module" />
+                  Average Score by Module
-                  <YAxis domain={[0, 100]} />
+                </CardTitle>
-                  <Tooltip />
+              </CardHeader>
-                  <Bar dataKey="score" fill="hsl(243, 75%, 59%)" radius={[4, 4, 0, 0]} />
+              <CardContent>
-                </BarChart>
+                <ResponsiveContainer width="100%" height={300}>
-              </ResponsiveContainer>
+                  <BarChart data={barData}>
-            </CardContent>
+                    <CartesianGrid
-          </Card>
+                      strokeDasharray="3 3"
-        </TabsContent>
+                      stroke="hsl(220, 16%, 90%)"
+                    />
+                    <XAxis dataKey="module" />
+                    <YAxis domain={[0, 100]} />
+                    <Tooltip />
+                    <Bar
+                      dataKey="score"
+                      fill="hsl(243, 75%, 59%)"
+                      radius={[4, 4, 0, 0]}
+                    />
+                  </BarChart>
+                </ResponsiveContainer>
+              </CardContent>
+            </Card>
+          </TabsContent>
 
-        <TabsContent value="trends" className="mt-4">
+          <TabsContent value="trends" className="mt-4">
-          <AiReportNarrative narrative={tabNarratives.trends} />
+            <AiReportNarrative
-          <Card className="border-0 shadow-sm">
+              report_type="corporate-trends"
-            <CardHeader><CardTitle className="text-base">Score Trend Over Time</CardTitle></CardHeader>
+              data={{ trends: trendData }}
-            <CardContent>
+            />
-              <ResponsiveContainer width="100%" height={300}>
+            <Card className="border-0 shadow-sm">
-                <LineChart data={trendData}>
+              <CardHeader>
-                  <CartesianGrid strokeDasharray="3 3" stroke="hsl(220, 16%, 90%)" />
+                <CardTitle className="text-base">
-                  <XAxis dataKey="month" />
+                  Score Trend Over Time
-                  <YAxis domain={[0, 100]} />
+                </CardTitle>
-                  <Tooltip />
+              </CardHeader>
-                  <Line type="monotone" dataKey="avg" stroke="hsl(243, 75%, 59%)" strokeWidth={2} dot={{ r: 4 }} />
+              <CardContent>
-                </LineChart>
+                <ResponsiveContainer width="100%" height={300}>
-              </ResponsiveContainer>
+                  <LineChart data={trendData}>
-            </CardContent>
+                    <CartesianGrid
-          </Card>
+                      strokeDasharray="3 3"
-        </TabsContent>
+                      stroke="hsl(220, 16%, 90%)"
+                    />
+                    <XAxis dataKey="month" />
+                    <YAxis domain={[0, 100]} />
+                    <Tooltip />
+                    <Line
+                      type="monotone"
+                      dataKey="avg"
+                      stroke="hsl(243, 75%, 59%)"
+                      strokeWidth={2}
+                      dot={{ r: 4 }}
+                    />
+                  </LineChart>
+                </ResponsiveContainer>
+              </CardContent>
+            </Card>
+          </TabsContent>
 
-        <TabsContent value="distribution" className="mt-4">
+          <TabsContent value="distribution" className="mt-4">
-          <AiReportNarrative narrative={tabNarratives.distribution} />
+            <AiReportNarrative
-          <Card className="border-0 shadow-sm">
+              report_type="corporate-distribution"
-            <CardHeader><CardTitle className="text-base">Level Distribution</CardTitle></CardHeader>
+              data={{ distribution: distData }}
-            <CardContent className="flex justify-center">
+            />
-              <ResponsiveContainer width="100%" height={300}>
+            <Card className="border-0 shadow-sm">
-                <PieChart>
+              <CardHeader>
-                  <Pie data={distData} dataKey="value" nameKey="name" cx="50%" cy="50%" outerRadius={100} label>
+                <CardTitle className="text-base">Level Distribution</CardTitle>
-                    {distData.map((entry, i) => <Cell key={i} fill={entry.color} />)}
+              </CardHeader>
-                  </Pie>
+              <CardContent className="flex justify-center">
-                  <Tooltip />
+                <ResponsiveContainer width="100%" height={300}>
-                </PieChart>
+                  <PieChart>
-              </ResponsiveContainer>
+                    <Pie
-            </CardContent>
+                      data={distData}
-          </Card>
+                      dataKey="value"
-        </TabsContent>
+                      nameKey="name"
+                      cx="50%"
+                      cy="50%"
+                      outerRadius={100}
+                      label
+                    >
+                      {distData.map((entry, i) => (
+                        <Cell key={i} fill={entry.color} />
+                      ))}
+                    </Pie>
+                    <Tooltip />
+                  </PieChart>
+                </ResponsiveContainer>
+              </CardContent>
+            </Card>
+          </TabsContent>
 
-        <TabsContent value="comparison" className="mt-4">
+          <TabsContent value="comparison" className="mt-4">
-          <AiReportNarrative narrative={tabNarratives.comparison} />
+            <AiReportNarrative
-          <Card className="border-0 shadow-sm">
+              report_type="corporate-comparison"
-            <CardContent className="p-8 text-center text-muted-foreground">Entity comparison charts will appear here based on selected filters.</CardContent>
+              data={{ threshold, entities: comparison }}
-          </Card>
+            />
-        </TabsContent>
+            <Card className="border-0 shadow-sm">
-      </Tabs>
+              <CardHeader>
+                <CardTitle className="text-base">
+                  Entity Comparison (average band × 10)
+                </CardTitle>
+              </CardHeader>
+              <CardContent>
+                {comparison.length === 0 ? (
+                  <p className="text-center text-muted-foreground p-8">
+                    No entities have attempts above this threshold.
+                  </p>
+                ) : (
+                  <ResponsiveContainer width="100%" height={300}>
+                    <BarChart data={comparison}>
+                      <CartesianGrid
+                        strokeDasharray="3 3"
+                        stroke="hsl(220, 16%, 90%)"
+                      />
+                      <XAxis dataKey="entity_name" />
+                      <YAxis domain={[0, 100]} />
+                      <Tooltip />
+                      <Bar
+                        dataKey="avg"
+                        fill="hsl(142, 71%, 45%)"
+                        radius={[4, 4, 0, 0]}
+                      />
+                    </BarChart>
+                  </ResponsiveContainer>
+                )}
+              </CardContent>
+            </Card>
+          </TabsContent>
+        </Tabs>
+      )}
     </div>
   );
 }

src/pages/StudentPerformancePage.tsx

@@ -1,77 +1,270 @@
+import { useMemo, useState } from "react";
+import { useQuery } from "@tanstack/react-query";
 import { Card, CardContent } from "@/components/ui/card";
 import { Badge } from "@/components/ui/badge";
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import {
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
+  Select,
-import { Switch } from "@/components/ui/switch";
+  SelectContent,
-import { Label } from "@/components/ui/label";
+  SelectItem,
-import { useState } from "react";
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+import { Input } from "@/components/ui/input";
+import { Button } from "@/components/ui/button";
+import { Loader2, Download } from "lucide-react";
 import AiStudyCoach from "@/components/ai/AiStudyCoach";
 import AiGradeExplainer from "@/components/ai/AiGradeExplainer";
+import { reportsService } from "@/services/reports.service";
 
-const students = [
+const LEVELS = ["all", "A1", "A2", "B1", "B2", "C1", "C2"] as const;
-  { name: "Sarah Johnson", entity: "Acme Corp", reading: 7.5, listening: 8.0, writing: 7.0, speaking: 7.5, overall: 7.5, level: "B2" },
-  { name: "Ahmed Hassan", entity: "Global Ltd", reading: 5.5, listening: 6.0, writing: 5.0, speaking: 5.5, overall: 5.5, level: "A2" },
-  { name: "Maria Garcia", entity: "Acme Corp", reading: 8.5, listening: 8.0, writing: 8.0, speaking: 8.5, overall: 8.25, level: "C1" },
-  { name: "Li Wei", entity: "Tech Co", reading: 6.5, listening: 6.0, writing: 6.0, speaking: 6.5, overall: 6.25, level: "B1" },
-  { name: "Emma Brown", entity: "Acme Corp", reading: 4.5, listening: 5.0, writing: 4.0, speaking: 4.5, overall: 4.5, level: "A1" },
-  { name: "John Park", entity: "Global Ltd", reading: 7.0, listening: 7.5, writing: 6.5, speaking: 7.0, overall: 7.0, level: "B2" },
-];
 
-function ScoreBadge({ score }: { score: number }) {
+function ScoreBadge({ score }: { score: number | null }) {
-  const color = score >= 7.5 ? "bg-success/10 text-success" : score >= 6.0 ? "bg-warning/10 text-warning" : "bg-destructive/10 text-destructive";
+  if (score === null || score === undefined) {
-  return <span className={`inline-flex items-center rounded-md px-2 py-0.5 text-xs font-semibold ${color}`}>{score.toFixed(1)}</span>;
+    return <span className="text-muted-foreground">—</span>;
+  }
+  const color =
+    score >= 7.5
+      ? "bg-success/10 text-success"
+      : score >= 6.0
+        ? "bg-warning/10 text-warning"
+        : "bg-destructive/10 text-destructive";
+  return (
+    <span
+      className={`inline-flex items-center rounded-md px-2 py-0.5 text-xs font-semibold ${color}`}
+    >
+      {score.toFixed(1)}
+    </span>
+  );
 }
 
 export default function StudentPerformancePage() {
-  const [showUtilisation, setShowUtilisation] = useState(false);
+  const [entityId, setEntityId] = useState<string>("all");
+  const [level, setLevel] = useState<(typeof LEVELS)[number]>("all");
+  const [search, setSearch] = useState("");
+
+  const { data: filters } = useQuery({
+    queryKey: ["reports-filters"],
+    queryFn: () => reportsService.filters(),
+  });
+
+  const { data, isLoading } = useQuery({
+    queryKey: ["student-performance", entityId, level, search],
+    queryFn: () =>
+      reportsService.studentPerformance({
+        entity_id: entityId === "all" ? undefined : Number(entityId),
+        level: level === "all" ? undefined : level,
+        search: search || undefined,
+      }),
+  });
+
+  const rows = data?.items ?? [];
+
+  const summary = useMemo(() => {
+    if (!rows.length) return null;
+    const overall = rows
+      .map((r) => r.overall)
+      .filter((v): v is number => v !== null);
+    const avg = overall.length
+      ? overall.reduce((a, b) => a + b, 0) / overall.length
+      : null;
+    return {
+      total: rows.length,
+      avg: avg !== null ? avg.toFixed(1) : "—",
+      topLevel: rows[0]?.level ?? "—",
+    };
+  }, [rows]);
+
+  const exportCsv = () => {
+    const header = [
+      "Student",
+      "Entity",
+      "Level",
+      "Reading",
+      "Listening",
+      "Writing",
+      "Speaking",
+      "Overall",
+      "Attempts",
+    ];
+    const lines = rows.map((r) =>
+      [
+        r.student_name,
+        r.entity_name,
+        r.level ?? "",
+        r.reading ?? "",
+        r.listening ?? "",
+        r.writing ?? "",
+        r.speaking ?? "",
+        r.overall ?? "",
+        r.attempts_count,
+      ]
+        .map((v) => `"${String(v).replace(/"/g, '""')}"`)
+        .join(","),
+    );
+    const blob = new Blob([[header.join(","), ...lines].join("\n")], {
+      type: "text/csv",
+    });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = `student-performance-${new Date().toISOString().slice(0, 10)}.csv`;
+    a.click();
+    URL.revokeObjectURL(url);
+  };
 
   return (
     <div className="space-y-6">
-      <div>
+      <div className="flex items-start justify-between gap-4">
-        <h1 className="text-2xl font-bold tracking-tight">Student Performance</h1>
+        <div>
-        <p className="text-muted-foreground">Track student scores across all IELTS modules.</p>
+          <h1 className="text-2xl font-bold tracking-tight">
+            Student Performance
+          </h1>
+          <p className="text-muted-foreground">
+            Track student scores across all IELTS modules.
+          </p>
+        </div>
+        <Button variant="outline" size="sm" onClick={exportCsv} disabled={!rows.length}>
+          <Download className="h-4 w-4 mr-1" /> Export CSV
+        </Button>
       </div>
 
+      {summary && (
+        <div className="grid gap-3 md:grid-cols-3">
+          <Card className="border-0 shadow-sm">
+            <CardContent className="p-4">
+              <p className="text-xs text-muted-foreground">Students tracked</p>
+              <p className="text-2xl font-bold">{summary.total}</p>
+            </CardContent>
+          </Card>
+          <Card className="border-0 shadow-sm">
+            <CardContent className="p-4">
+              <p className="text-xs text-muted-foreground">Average overall band</p>
+              <p className="text-2xl font-bold">{summary.avg}</p>
+            </CardContent>
+          </Card>
+          <Card className="border-0 shadow-sm">
+            <CardContent className="p-4">
+              <p className="text-xs text-muted-foreground">Top performer level</p>
+              <p className="text-2xl font-bold">{summary.topLevel}</p>
+            </CardContent>
+          </Card>
+        </div>
+      )}
+
       <AiStudyCoach />
 
       <div className="flex flex-wrap gap-3 items-center">
-        <Select><SelectTrigger className="w-[160px]"><SelectValue placeholder="All Entities" /></SelectTrigger>
+        <Input
-          <SelectContent><SelectItem value="all">All Entities</SelectItem><SelectItem value="acme">Acme Corp</SelectItem><SelectItem value="global">Global Ltd</SelectItem></SelectContent>
+          placeholder="Search student..."
+          value={search}
+          onChange={(e) => setSearch(e.target.value)}
+          className="w-[220px]"
+        />
+        <Select value={entityId} onValueChange={setEntityId}>
+          <SelectTrigger className="w-[180px]">
+            <SelectValue placeholder="All Entities" />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="all">All Entities</SelectItem>
+            {filters?.entities.map((e) => (
+              <SelectItem key={e.id} value={String(e.id)}>
+                {e.name}
+              </SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+        <Select
+          value={level}
+          onValueChange={(v) => setLevel(v as (typeof LEVELS)[number])}
+        >
+          <SelectTrigger className="w-[140px]">
+            <SelectValue placeholder="Level" />
+          </SelectTrigger>
+          <SelectContent>
+            {LEVELS.map((l) => (
+              <SelectItem key={l} value={l}>
+                {l === "all" ? "All Levels" : l}
+              </SelectItem>
+            ))}
+          </SelectContent>
         </Select>
-        <div className="flex items-center gap-2 ml-auto">
-          <Switch id="util" checked={showUtilisation} onCheckedChange={setShowUtilisation} />
-          <Label htmlFor="util" className="text-sm">Show Utilisation</Label>
-        </div>
       </div>
 
       <Card className="border-0 shadow-sm">
         <CardContent className="p-0">
-          <Table>
+          {isLoading ? (
-            <TableHeader>
+            <div className="flex items-center justify-center p-12 text-muted-foreground">
-              <TableRow>
+              <Loader2 className="h-5 w-5 animate-spin mr-2" /> Loading
-                <TableHead>Student</TableHead><TableHead>Entity</TableHead><TableHead>Level</TableHead>
+              performance data...
-                <TableHead className="text-center">Reading</TableHead><TableHead className="text-center">Listening</TableHead>
+            </div>
-                <TableHead className="text-center">Writing</TableHead><TableHead className="text-center">Speaking</TableHead>
+          ) : rows.length === 0 ? (
-                <TableHead className="text-center">Overall</TableHead>
+            <div className="p-8 text-center text-muted-foreground">
-                <TableHead className="w-10">AI</TableHead>
+              No completed attempts match these filters yet.
-              </TableRow>
+            </div>
-            </TableHeader>
+          ) : (
-            <TableBody>
+            <Table>
-              {students.map((s) => (
+              <TableHeader>
-                <TableRow key={s.name}>
+                <TableRow>
-                  <TableCell className="font-medium">{s.name}</TableCell>
+                  <TableHead>Student</TableHead>
-                  <TableCell>{s.entity}</TableCell>
+                  <TableHead>Entity</TableHead>
-                  <TableCell><Badge variant="outline">{s.level}</Badge></TableCell>
+                  <TableHead>Level</TableHead>
-                  <TableCell className="text-center"><ScoreBadge score={s.reading} /></TableCell>
+                  <TableHead className="text-center">Reading</TableHead>
-                  <TableCell className="text-center"><ScoreBadge score={s.listening} /></TableCell>
+                  <TableHead className="text-center">Listening</TableHead>
-                  <TableCell className="text-center"><ScoreBadge score={s.writing} /></TableCell>
+                  <TableHead className="text-center">Writing</TableHead>
-                  <TableCell className="text-center"><ScoreBadge score={s.speaking} /></TableCell>
+                  <TableHead className="text-center">Speaking</TableHead>
-                  <TableCell className="text-center"><ScoreBadge score={s.overall} /></TableCell>
+                  <TableHead className="text-center">Overall</TableHead>
-                  <TableCell><AiGradeExplainer studentName={s.name} /></TableCell>
+                  <TableHead className="text-center">Attempts</TableHead>
+                  <TableHead className="w-10">AI</TableHead>
                 </TableRow>
-              ))}
+              </TableHeader>
-            </TableBody>
+              <TableBody>
-          </Table>
+                {rows.map((r) => (
+                  <TableRow key={r.student_id}>
+                    <TableCell className="font-medium">
+                      {r.student_name}
+                    </TableCell>
+                    <TableCell>{r.entity_name || "—"}</TableCell>
+                    <TableCell>
+                      {r.level ? (
+                        <Badge variant="outline">{r.level}</Badge>
+                      ) : (
+                        "—"
+                      )}
+                    </TableCell>
+                    <TableCell className="text-center">
+                      <ScoreBadge score={r.reading} />
+                    </TableCell>
+                    <TableCell className="text-center">
+                      <ScoreBadge score={r.listening} />
+                    </TableCell>
+                    <TableCell className="text-center">
+                      <ScoreBadge score={r.writing} />
+                    </TableCell>
+                    <TableCell className="text-center">
+                      <ScoreBadge score={r.speaking} />
+                    </TableCell>
+                    <TableCell className="text-center">
+                      <ScoreBadge score={r.overall} />
+                    </TableCell>
+                    <TableCell className="text-center text-sm text-muted-foreground">
+                      {r.attempts_count}
+                    </TableCell>
+                    <TableCell>
+                      <AiGradeExplainer studentName={r.student_name} />
+                    </TableCell>
+                  </TableRow>
+                ))}
+              </TableBody>
+            </Table>
+          )}
         </CardContent>
       </Card>
     </div>

src/pages/TicketsPage.tsx

@@ -33,7 +33,7 @@ export default function TicketsPage() {
       }),
   });
 
-  const tickets: Ticket[] = data?.data ?? [];
+  const tickets: Ticket[] = data?.items ?? data?.data ?? [];
 
   const createMut = useMutation({
     mutationFn: ticketsService.create,

src/pages/UsersPage.tsx

@@ -3,151 +3,153 @@ import { Card, CardContent } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
+import { Checkbox } from "@/components/ui/checkbox";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter, DialogDescription } from "@/components/ui/dialog";
 import { Label } from "@/components/ui/label";
-import { Search, Plus, Download, MoreHorizontal } from "lucide-react";
+import { Search, Plus, Download, Shield, Pencil, UserCog } from "lucide-react";
-import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from "@/components/ui/dropdown-menu";
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
-import { useStudents, useTeachers, useCreateStudent, useCreateTeacher } from "@/hooks/queries";
+import { api } from "@/lib/api-client";
-import { lmsService } from "@/services/lms.service";
-import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { useToast } from "@/hooks/use-toast";
-import { ApiError } from "@/lib/api-client";
 
-function messageFromCreateError(err: unknown): string {
+interface PlatformUser {
-  if (err instanceof ApiError && err.data && typeof err.data === "object" && err.data !== null && "error" in err.data) {
+  id: number;
-    const e = (err.data as { error: unknown }).error;
+  name: string;
-    if (e != null && String(e).trim()) return String(e);
+  email: string;
-  }
+  login: string;
-  if (err instanceof Error) return err.message;
+  user_type: string;
-  return "Something went wrong.";
+  active: boolean;
+  phone: string;
+  role_ids: number[];
+  roles: { id: number; name: string }[];
+  effective_permission_count: number;
 }
 
-function toastForCreateUserError(err: unknown): { title: string; description: string; variant?: "default" | "destructive" } {
+interface RoleInfo {
-  const msg = messageFromCreateError(err).toLowerCase();
+  id: number;
-  const isDuplicate =
+  name: string;
-    msg.includes("already exists") ||
+  description: string;
-    msg.includes("duplicate") ||
+  assigned: boolean;
-    msg.includes("unique") ||
+  permission_count: number;
-    msg.includes("already registered");
-  if (isDuplicate) {
-    return {
-      title: "Email already in use",
-      description:
-        messageFromCreateError(err) +
-        " Try another address, or find the existing user in the Students or Teachers tab.",
-      variant: "destructive",
-    };
-  }
-  return { title: "Could not create user", description: messageFromCreateError(err), variant: "destructive" };
 }
 
+const TYPE_COLORS: Record<string, string> = {
+  admin: "bg-red-100 text-red-800 border-red-200",
+  teacher: "bg-blue-100 text-blue-800 border-blue-200",
+  student: "bg-green-100 text-green-800 border-green-200",
+  user: "bg-gray-100 text-gray-800 border-gray-200",
+};
+
 export default function UsersPage() {
   const [search, setSearch] = useState("");
+  const [typeFilter, setTypeFilter] = useState<string>("all");
   const [createOpen, setCreateOpen] = useState(false);
-  const [form, setForm] = useState({ first_name: "", last_name: "", email: "", role: "student", phone: "", gender: "" });
+  const [editUser, setEditUser] = useState<PlatformUser | null>(null);
+  const [rolesUser, setRolesUser] = useState<PlatformUser | null>(null);
+  const [form, setForm] = useState({ name: "", email: "", password: "", phone: "" });
   const { toast } = useToast();
   const qc = useQueryClient();
 
-  const studentsQ = useStudents({ search: search || undefined, size: 200 });
+  const usersQ = useQuery({
-  const teachersQ = useTeachers({ search: search || undefined, size: 200 });
+    queryKey: ["platform-users", search],
-  const createStudentMut = useCreateStudent();
+    queryFn: async () => {
-  const createTeacherMut = useCreateTeacher();
+      const params: Record<string, string | number> = { size: 200 };
-
+      if (search) params.search = search;
-  const students = studentsQ.data?.items ?? [];
+      const res = await api.get<{ items?: PlatformUser[]; data?: PlatformUser[]; total: number }>("/users/list", params);
-  const teachers = teachersQ.data?.items ?? [];
+      return (res.items ?? res.data ?? []) as PlatformUser[];
-
-  const deleteMut = useMutation({
-    mutationFn: async ({ type, id }: { type: "student" | "teacher"; id: number }) => {
-      if (type === "student") return lmsService.deleteStudent?.(id) ?? lmsService.updateStudent(id, { status: "inactive" });
-      return lmsService.updateTeacher?.(id, {}) ?? Promise.resolve();
     },
+  });
+
+  const rolesQ = useQuery({
+    queryKey: ["user-roles-detail", rolesUser?.id],
+    queryFn: async () => {
+      if (!rolesUser) return null;
+      return api.get<{ roles: RoleInfo[]; effective_permissions: unknown[] }>(`/users/${rolesUser.id}/roles`);
+    },
+    enabled: !!rolesUser,
+  });
+
+  const createMut = useMutation({
+    mutationFn: (data: { name: string; email: string; password: string; phone?: string }) =>
+      api.post<{ data: PlatformUser }>("/users/create", data),
     onSuccess: () => {
-      qc.invalidateQueries({ queryKey: ["lms"] });
+      qc.invalidateQueries({ queryKey: ["platform-users"] });
-      toast({ title: "Done" });
+      setCreateOpen(false);
+      setForm({ name: "", email: "", password: "", phone: "" });
+      toast({ title: "User created" });
     },
     onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
   });
 
-  function handleCreate() {
+  const updateMut = useMutation({
-    const email = form.email.trim();
+    mutationFn: (data: { id: number; name?: string; email?: string; phone?: string }) =>
-    const first_name = form.first_name.trim();
+      api.patch<{ data: PlatformUser }>("/users/update", data),
-    const last_name = form.last_name.trim();
+    onSuccess: () => {
-    const emailKey = email.toLowerCase();
+      qc.invalidateQueries({ queryKey: ["platform-users"] });
-    const dupStudent = students.some((s) => (s.email || "").trim().toLowerCase() === emailKey);
+      setEditUser(null);
-    const dupTeacher = teachers.some((t) => (t.email || "").trim().toLowerCase() === emailKey);
+      toast({ title: "User updated" });
-    if (dupStudent || dupTeacher) {
+    },
-      toast({
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
-        title: "Email already in use",
+  });
-        description:
-          "That address matches someone already listed on this page (search may hide them). Use another email or clear search to find the user.",
-        variant: "destructive",
-      });
-      return;
-    }
-    const cb = {
-      onSuccess: () => {
-        setCreateOpen(false);
-        resetForm();
-        toast({ title: "User created successfully" });
-      },
-      onError: (err: unknown) => toast(toastForCreateUserError(err)),
-    };
-    if (form.role === "teacher") {
-      createTeacherMut.mutate(
-        {
-          first_name,
-          last_name,
-          email,
-          phone: form.phone?.trim() || undefined,
-          gender: (form.gender as "male" | "female") || undefined,
-        },
-        cb,
-      );
-    } else {
-      createStudentMut.mutate(
-        {
-          first_name,
-          last_name,
-          email,
-          phone: form.phone?.trim() || undefined,
-          gender: form.gender || undefined,
-          create_portal_user: true,
-        },
-        cb,
-      );
-    }
-  }
 
-  function resetForm() {
+  const toggleRoleMut = useMutation({
-    setForm({ first_name: "", last_name: "", email: "", role: "student", phone: "", gender: "" });
+    mutationFn: ({ userId, roleId }: { userId: number; roleId: number }) =>
-  }
+      api.post<{ assigned: boolean }>(`/users/${userId}/roles/toggle`, { role_id: roleId }),
+    onSuccess: (res) => {
+      qc.invalidateQueries({ queryKey: ["platform-users"] });
+      qc.invalidateQueries({ queryKey: ["user-roles-detail"] });
+      const verb = (res as { assigned: boolean }).assigned ? "assigned" : "removed";
+      toast({ title: `Role ${verb}` });
+    },
+    onError: (err: Error) => toast({ title: "Error", description: err.message, variant: "destructive" }),
+  });
+
+  const users = usersQ.data ?? [];
+  const filtered = users.filter((u) => {
+    if (typeFilter !== "all" && u.user_type !== typeFilter) return false;
+    return true;
+  });
+
+  const typeCounts = {
+    all: users.length,
+    admin: users.filter((u) => u.user_type === "admin").length,
+    teacher: users.filter((u) => u.user_type === "teacher").length,
+    student: users.filter((u) => u.user_type === "student").length,
+  };
 
   function exportCsv() {
-    const rows = [["Name", "Email", "Role", "Status"]];
+    const rows = [["Name", "Email", "Type", "Roles", "Permissions"]];
-    students.forEach(s => rows.push([s.name, s.email, "Student", s.status || "active"]));
+    users.forEach((u) =>
-    teachers.forEach(t => rows.push([t.name, t.email, "Teacher", "active"]));
+      rows.push([
-    const csv = rows.map(r => r.join(",")).join("\n");
+        u.name,
+        u.email,
+        u.user_type,
+        u.roles.map((r) => r.name).join("; "),
+        String(u.effective_permission_count),
+      ]),
+    );
+    const csv = rows.map((r) => r.map((c) => `"${c}"`).join(",")).join("\n");
     const blob = new Blob([csv], { type: "text/csv" });
     const url = URL.createObjectURL(blob);
     const a = document.createElement("a");
     a.href = url;
-    a.download = "users_export.csv";
+    a.download = "platform_users.csv";
     a.click();
     URL.revokeObjectURL(url);
   }
 
-  const isPending = createStudentMut.isPending || createTeacherMut.isPending;
+  const rolesData = rolesQ.data as { roles: RoleInfo[]; effective_permissions: unknown[] } | null;
-  const loading = studentsQ.isLoading || teachersQ.isLoading;
 
   return (
     <div className="space-y-6">
       <div className="flex items-center justify-between">
         <div>
           <h1 className="text-2xl font-bold tracking-tight">Users</h1>
-          <p className="text-muted-foreground">Manage platform users across all roles.</p>
+          <p className="text-muted-foreground">
+            Manage all platform accounts — admins, teachers, and students.
+          </p>
         </div>
         <div className="flex gap-2">
           <Button variant="outline" size="sm" onClick={exportCsv}>
@@ -159,177 +161,254 @@ export default function UsersPage() {
         </div>
       </div>
 
-      <div className="flex gap-3 items-center">
+      <div className="flex gap-3 items-center flex-wrap">
         <div className="relative flex-1 max-w-sm">
           <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
-          <Input placeholder="Search users..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
+          <Input placeholder="Search by name..." className="pl-9" value={search} onChange={(e) => setSearch(e.target.value)} />
         </div>
+        <Tabs value={typeFilter} onValueChange={setTypeFilter}>
+          <TabsList>
+            <TabsTrigger value="all">All ({typeCounts.all})</TabsTrigger>
+            <TabsTrigger value="admin">Admins ({typeCounts.admin})</TabsTrigger>
+            <TabsTrigger value="teacher">Teachers ({typeCounts.teacher})</TabsTrigger>
+            <TabsTrigger value="student">Students ({typeCounts.student})</TabsTrigger>
+          </TabsList>
+        </Tabs>
       </div>
 
-      {loading ? (
+      {usersQ.isLoading ? (
         <div className="flex items-center justify-center min-h-[300px]">
           <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" />
         </div>
       ) : (
-        <Tabs defaultValue="students">
+        <Card className="border-0 shadow-sm">
-          <TabsList>
+          <CardContent className="p-0">
-            <TabsTrigger value="students">Students ({students.length})</TabsTrigger>
+            <Table>
-            <TabsTrigger value="teachers">Teachers ({teachers.length})</TabsTrigger>
+              <TableHeader>
-          </TabsList>
+                <TableRow>
-          <TabsContent value="students" className="mt-4">
+                  <TableHead>User</TableHead>
-            <Card className="border-0 shadow-sm">
+                  <TableHead>Type</TableHead>
-              <CardContent className="p-0">
+                  <TableHead>Roles</TableHead>
-                <Table>
+                  <TableHead>Permissions</TableHead>
-                  <TableHeader>
+                  <TableHead>Status</TableHead>
-                    <TableRow>
+                  <TableHead className="w-[120px]" />
-                      <TableHead>Name</TableHead>
+                </TableRow>
-                      <TableHead>Email</TableHead>
+              </TableHeader>
-                      <TableHead>Phone</TableHead>
+              <TableBody>
-                      <TableHead>Batch</TableHead>
+                {filtered.length === 0 && (
-                      <TableHead>Status</TableHead>
+                  <TableRow>
-                      <TableHead>Enrollment</TableHead>
+                    <TableCell colSpan={6} className="text-center text-muted-foreground py-8">
-                      <TableHead className="w-10" />
+                      No users found.
+                    </TableCell>
+                  </TableRow>
+                )}
+                {filtered.map((u) => {
+                  const initials = u.name
+                    .split(" ")
+                    .map((w) => w[0])
+                    .join("")
+                    .slice(0, 2)
+                    .toUpperCase();
+                  return (
+                    <TableRow key={u.id}>
+                      <TableCell>
+                        <div className="flex items-center gap-3">
+                          <div className="h-8 w-8 rounded-full bg-primary/10 flex items-center justify-center text-xs font-semibold text-primary">
+                            {initials}
+                          </div>
+                          <div>
+                            <p className="text-sm font-medium">{u.name}</p>
+                            <p className="text-xs text-muted-foreground">{u.email}</p>
+                          </div>
+                        </div>
+                      </TableCell>
+                      <TableCell>
+                        <Badge variant="outline" className={`capitalize text-xs ${TYPE_COLORS[u.user_type] || TYPE_COLORS.user}`}>
+                          {u.user_type}
+                        </Badge>
+                      </TableCell>
+                      <TableCell>
+                        <div className="flex flex-wrap gap-1">
+                          {u.roles.length > 0
+                            ? u.roles.map((r) => (
+                                <Badge key={r.id} variant="secondary" className="text-xs">
+                                  {r.name}
+                                </Badge>
+                              ))
+                            : <span className="text-xs text-muted-foreground">No roles</span>}
+                        </div>
+                      </TableCell>
+                      <TableCell>
+                        <span className="text-sm">{u.effective_permission_count}</span>
+                      </TableCell>
+                      <TableCell>
+                        <Badge variant={u.active ? "default" : "secondary"}>
+                          {u.active ? "Active" : "Inactive"}
+                        </Badge>
+                      </TableCell>
+                      <TableCell>
+                        <div className="flex gap-1">
+                          <Button variant="ghost" size="icon" className="h-8 w-8" title="Edit user" onClick={() => setEditUser(u)}>
+                            <Pencil className="h-4 w-4" />
+                          </Button>
+                          <Button variant="ghost" size="icon" className="h-8 w-8" title="Manage roles" onClick={() => setRolesUser(u)}>
+                            <UserCog className="h-4 w-4" />
+                          </Button>
+                        </div>
+                      </TableCell>
                     </TableRow>
-                  </TableHeader>
+                  );
-                  <TableBody>
+                })}
-                    {students.length === 0 && (
+              </TableBody>
-                      <TableRow><TableCell colSpan={7} className="text-center text-muted-foreground py-8">No students found.</TableCell></TableRow>
+            </Table>
-                    )}
+          </CardContent>
-                    {students.map((s) => (
+        </Card>
-                      <TableRow key={s.id}>
-                        <TableCell className="font-medium">{s.name}</TableCell>
-                        <TableCell>{s.email}</TableCell>
-                        <TableCell>{s.phone || "—"}</TableCell>
-                        <TableCell>{s.batch_name || "—"}</TableCell>
-                        <TableCell>
-                          <Badge variant={s.status === "active" ? "default" : "secondary"} className="capitalize">{s.status || "active"}</Badge>
-                        </TableCell>
-                        <TableCell>{s.enrollment_date || "—"}</TableCell>
-                        <TableCell>
-                          <DropdownMenu>
-                            <DropdownMenuTrigger asChild>
-                              <Button variant="ghost" size="icon" className="h-8 w-8"><MoreHorizontal className="h-4 w-4" /></Button>
-                            </DropdownMenuTrigger>
-                            <DropdownMenuContent align="end">
-                              <DropdownMenuItem className="text-destructive" onClick={() => { if (window.confirm(`Deactivate student "${s.name}"?`)) deleteMut.mutate({ type: "student", id: s.id }); }}>
-                                Deactivate
-                              </DropdownMenuItem>
-                            </DropdownMenuContent>
-                          </DropdownMenu>
-                        </TableCell>
-                      </TableRow>
-                    ))}
-                  </TableBody>
-                </Table>
-              </CardContent>
-            </Card>
-          </TabsContent>
-          <TabsContent value="teachers" className="mt-4">
-            <Card className="border-0 shadow-sm">
-              <CardContent className="p-0">
-                <Table>
-                  <TableHeader>
-                    <TableRow>
-                      <TableHead>Name</TableHead>
-                      <TableHead>Email</TableHead>
-                      <TableHead>Phone</TableHead>
-                      <TableHead>Department</TableHead>
-                      <TableHead>Specialization</TableHead>
-                      <TableHead className="w-10" />
-                    </TableRow>
-                  </TableHeader>
-                  <TableBody>
-                    {teachers.length === 0 && (
-                      <TableRow><TableCell colSpan={6} className="text-center text-muted-foreground py-8">No teachers found.</TableCell></TableRow>
-                    )}
-                    {teachers.map((t) => (
-                      <TableRow key={t.id}>
-                        <TableCell className="font-medium">{t.name}</TableCell>
-                        <TableCell>{t.email}</TableCell>
-                        <TableCell>{t.phone || "—"}</TableCell>
-                        <TableCell>{t.department_name || "—"}</TableCell>
-                        <TableCell>{t.specialization || "—"}</TableCell>
-                        <TableCell>
-                          <DropdownMenu>
-                            <DropdownMenuTrigger asChild>
-                              <Button variant="ghost" size="icon" className="h-8 w-8"><MoreHorizontal className="h-4 w-4" /></Button>
-                            </DropdownMenuTrigger>
-                            <DropdownMenuContent align="end">
-                              <DropdownMenuItem className="text-destructive" onClick={() => { if (window.confirm(`Remove teacher "${t.name}"?`)) deleteMut.mutate({ type: "teacher", id: t.id }); }}>
-                                Remove
-                              </DropdownMenuItem>
-                            </DropdownMenuContent>
-                          </DropdownMenu>
-                        </TableCell>
-                      </TableRow>
-                    ))}
-                  </TableBody>
-                </Table>
-              </CardContent>
-            </Card>
-          </TabsContent>
-        </Tabs>
       )}
 
-      <Dialog open={createOpen} onOpenChange={(v) => { setCreateOpen(v); if (!v) resetForm(); }}>
+      {/* Create User Dialog */}
+      <Dialog open={createOpen} onOpenChange={setCreateOpen}>
         <DialogContent>
-          <DialogHeader><DialogTitle>Create New User</DialogTitle></DialogHeader>
+          <DialogHeader>
+            <DialogTitle>Create Platform User</DialogTitle>
+            <DialogDescription>
+              Creates an internal Odoo user (res.users) with login access.
+              For students/teachers, use the LMS pages instead.
+            </DialogDescription>
+          </DialogHeader>
           <div className="space-y-4">
-            <div className="grid grid-cols-2 gap-3">
+            <div className="space-y-2">
-              <div className="space-y-2">
+              <Label>Full Name</Label>
-                <Label>First Name</Label>
+              <Input value={form.name} onChange={(e) => setForm((f) => ({ ...f, name: e.target.value }))} placeholder="e.g. John Admin" />
-                <Input value={form.first_name} onChange={(e) => setForm(f => ({ ...f, first_name: e.target.value }))} placeholder="John" />
-              </div>
-              <div className="space-y-2">
-                <Label>Last Name</Label>
-                <Input value={form.last_name} onChange={(e) => setForm(f => ({ ...f, last_name: e.target.value }))} placeholder="Doe" />
-              </div>
             </div>
             <div className="space-y-2">
-              <Label>Email</Label>
+              <Label>Email (login)</Label>
-              <Input type="email" value={form.email} onChange={(e) => setForm(f => ({ ...f, email: e.target.value }))} placeholder="john@email.com" />
+              <Input type="email" value={form.email} onChange={(e) => setForm((f) => ({ ...f, email: e.target.value }))} placeholder="admin@encoach.com" />
-              <p className="text-xs text-muted-foreground">
-                Must be unique in Odoo for students and teachers. If create fails, the address may already exist outside the current list.
-              </p>
             </div>
             <div className="space-y-2">
-              <Label>Phone</Label>
+              <Label>Password</Label>
-              <Input value={form.phone} onChange={(e) => setForm(f => ({ ...f, phone: e.target.value }))} placeholder="+1234567890" />
+              <Input type="password" value={form.password} onChange={(e) => setForm((f) => ({ ...f, password: e.target.value }))} placeholder="Minimum 6 characters" />
             </div>
-            <div className="grid grid-cols-2 gap-3">
+            <div className="space-y-2">
-              <div className="space-y-2">
+              <Label>Phone (optional)</Label>
-                <Label>Role</Label>
+              <Input value={form.phone} onChange={(e) => setForm((f) => ({ ...f, phone: e.target.value }))} placeholder="+1234567890" />
-                <Select value={form.role} onValueChange={(v) => setForm(f => ({ ...f, role: v }))}>
-                  <SelectTrigger><SelectValue /></SelectTrigger>
-                  <SelectContent>
-                    <SelectItem value="student">Student</SelectItem>
-                    <SelectItem value="teacher">Teacher</SelectItem>
-                  </SelectContent>
-                </Select>
-              </div>
-              <div className="space-y-2">
-                <Label>Gender</Label>
-                <Select value={form.gender} onValueChange={(v) => setForm(f => ({ ...f, gender: v }))}>
-                  <SelectTrigger><SelectValue placeholder="Select" /></SelectTrigger>
-                  <SelectContent>
-                    <SelectItem value="male">Male</SelectItem>
-                    <SelectItem value="female">Female</SelectItem>
-                  </SelectContent>
-                </Select>
-              </div>
             </div>
           </div>
           <DialogFooter>
-            <Button variant="outline" onClick={() => { setCreateOpen(false); resetForm(); }}>Cancel</Button>
+            <Button variant="outline" onClick={() => setCreateOpen(false)}>Cancel</Button>
             <Button
-              disabled={isPending || !form.first_name.trim() || !form.last_name.trim() || !form.email.trim()}
+              disabled={createMut.isPending || !form.name.trim() || !form.email.trim()}
-              onClick={handleCreate}
+              onClick={() => createMut.mutate({ name: form.name.trim(), email: form.email.trim(), password: form.password || "admin123", phone: form.phone.trim() || undefined })}
             >
-              {isPending ? "Creating..." : "Create"}
+              {createMut.isPending ? "Creating..." : "Create User"}
             </Button>
           </DialogFooter>
         </DialogContent>
       </Dialog>
+
+      {/* Edit User Dialog */}
+      <Dialog open={!!editUser} onOpenChange={(v) => { if (!v) setEditUser(null); }}>
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>Edit User</DialogTitle>
+            <DialogDescription>Update profile for {editUser?.name}</DialogDescription>
+          </DialogHeader>
+          {editUser && (
+            <div className="space-y-4">
+              <div className="space-y-2">
+                <Label>Name</Label>
+                <Input
+                  value={editUser.name}
+                  onChange={(e) => setEditUser((u) => u ? { ...u, name: e.target.value } : null)}
+                />
+              </div>
+              <div className="space-y-2">
+                <Label>Email</Label>
+                <Input
+                  type="email"
+                  value={editUser.email}
+                  onChange={(e) => setEditUser((u) => u ? { ...u, email: e.target.value } : null)}
+                />
+              </div>
+              <div className="space-y-2">
+                <Label>Phone</Label>
+                <Input
+                  value={editUser.phone || ""}
+                  onChange={(e) => setEditUser((u) => u ? { ...u, phone: e.target.value } : null)}
+                />
+              </div>
+            </div>
+          )}
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setEditUser(null)}>Cancel</Button>
+            <Button
+              disabled={updateMut.isPending || !editUser?.name.trim()}
+              onClick={() => {
+                if (!editUser) return;
+                updateMut.mutate({
+                  id: editUser.id,
+                  name: editUser.name.trim(),
+                  email: editUser.email.trim(),
+                  phone: editUser.phone?.trim() || undefined,
+                });
+              }}
+            >
+              {updateMut.isPending ? "Saving..." : "Save Changes"}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Manage Roles Dialog */}
+      <Dialog open={!!rolesUser} onOpenChange={(v) => { if (!v) setRolesUser(null); }}>
+        <DialogContent className="max-w-lg">
+          <DialogHeader>
+            <DialogTitle>
+              <div className="flex items-center gap-2">
+                <Shield className="h-5 w-5" />
+                Manage Roles — {rolesUser?.name}
+              </div>
+            </DialogTitle>
+            <DialogDescription>Toggle roles on/off for this user.</DialogDescription>
+          </DialogHeader>
+
+          {rolesQ.isLoading ? (
+            <div className="flex items-center justify-center py-8">
+              <div className="animate-spin rounded-full h-6 w-6 border-b-2 border-primary" />
+            </div>
+          ) : rolesData?.roles ? (
+            <div className="space-y-2 max-h-[400px] overflow-y-auto">
+              {rolesData.roles.map((r) => (
+                <label
+                  key={r.id}
+                  className={`flex items-center gap-3 p-3 rounded-lg border cursor-pointer transition-colors ${
+                    r.assigned ? "border-primary bg-primary/5" : "border-border hover:bg-muted/50"
+                  }`}
+                >
+                  <Checkbox
+                    checked={r.assigned}
+                    onCheckedChange={() => {
+                      if (rolesUser) toggleRoleMut.mutate({ userId: rolesUser.id, roleId: r.id });
+                    }}
+                  />
+                  <div className="flex-1">
+                    <p className="text-sm font-medium">{r.name}</p>
+                    {r.description && <p className="text-xs text-muted-foreground">{r.description}</p>}
+                  </div>
+                  <Badge variant="outline" className="text-xs shrink-0">
+                    {r.permission_count} perms
+                  </Badge>
+                </label>
+              ))}
+            </div>
+          ) : (
+            <p className="text-sm text-muted-foreground text-center py-4">No roles available.</p>
+          )}
+
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setRolesUser(null)}>Close</Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

src/pages/VocabularyPage.tsx

@@ -1,96 +1,389 @@
 import { useState } from "react";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Progress } from "@/components/ui/progress";
 import { Badge } from "@/components/ui/badge";
 import { Switch } from "@/components/ui/switch";
 import { Label } from "@/components/ui/label";
-import { CheckCircle, BookA, Sparkles } from "lucide-react";
+import { Input } from "@/components/ui/input";
+import { Textarea } from "@/components/ui/textarea";
+import { Button } from "@/components/ui/button";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import {
+  CheckCircle,
+  Plus,
+  Search,
+  Trash2,
+  Loader2,
+  Sparkles,
+  Circle,
+} from "lucide-react";
 import AiTipBanner from "@/components/ai/AiTipBanner";
+import { useToast } from "@/hooks/use-toast";
+import {
+  trainingService,
+  type VocabItem,
+  type CefrLevel,
+} from "@/services/training.service";
 
-const vocabItems = [
+const LEVELS: (CefrLevel | "all")[] = ["all", "A1", "A2", "B1", "B2", "C1", "C2"];
-  { word: "Ubiquitous", meaning: "Present, appearing, or found everywhere", level: "C1", completed: true },
-  { word: "Pragmatic", meaning: "Dealing with things sensibly and realistically", level: "B2", completed: true },
-  { word: "Eloquent", meaning: "Fluent or persuasive in speaking or writing", level: "C1", completed: false },
-  { word: "Meticulous", meaning: "Showing great attention to detail", level: "B2", completed: false },
-  { word: "Ambiguous", meaning: "Open to more than one interpretation", level: "B2", completed: false },
-  { word: "Coherent", meaning: "Logical and consistent", level: "B1", completed: false },
-  { word: "Versatile", meaning: "Able to adapt to many different functions", level: "B2", completed: true },
-  { word: "Concise", meaning: "Giving a lot of information in few words", level: "B1", completed: false },
-];
 
 export default function VocabularyPage() {
-  const [showCompleted, setShowCompleted] = useState(false);
+  const { toast } = useToast();
-  const completed = vocabItems.filter(v => v.completed).length;
+  const qc = useQueryClient();
-  const filtered = showCompleted ? vocabItems : vocabItems.filter(v => !v.completed);
+  const [showCompleted, setShowCompleted] = useState(true);
+  const [levelFilter, setLevelFilter] = useState<string>("all");
+  const [search, setSearch] = useState("");
+  const [createOpen, setCreateOpen] = useState(false);
+  const [form, setForm] = useState({
+    word: "",
+    meaning: "",
+    example_sentence: "",
+    level: "B1" as CefrLevel,
+    part_of_speech: "noun" as VocabItem["part_of_speech"],
+    category: "general",
+  });
+
+  const listQ = useQuery({
+    queryKey: ["training-vocab", levelFilter, search],
+    queryFn: () =>
+      trainingService.listVocab({
+        ...(levelFilter !== "all" ? { level: levelFilter } : {}),
+        ...(search ? { search } : {}),
+      }),
+  });
+
+  const items = listQ.data?.items ?? [];
+  const summary = listQ.data?.summary;
+  const filtered = showCompleted ? items : items.filter((v) => !v.completed);
+
+  const createMut = useMutation({
+    mutationFn: trainingService.createVocab,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["training-vocab"] });
+      setCreateOpen(false);
+      setForm({
+        word: "",
+        meaning: "",
+        example_sentence: "",
+        level: "B1",
+        part_of_speech: "noun",
+        category: "general",
+      });
+      toast({ title: "Word added" });
+    },
+    onError: (err: unknown) => {
+      const msg =
+        err && typeof err === "object" && "message" in err
+          ? String((err as { message: unknown }).message)
+          : "Failed to add word";
+      toast({ title: msg, variant: "destructive" });
+    },
+  });
+
+  const delMut = useMutation({
+    mutationFn: trainingService.deleteVocab,
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: ["training-vocab"] });
+      toast({ title: "Word deleted" });
+    },
+  });
+
+  const progressMut = useMutation({
+    mutationFn: ({ id, completed }: { id: number; completed: boolean }) =>
+      trainingService.setVocabProgress(id, { completed }),
+    onSuccess: () => qc.invalidateQueries({ queryKey: ["training-vocab"] }),
+  });
 
   return (
     <div className="space-y-6">
-      <div>
+      <div className="flex items-center justify-between">
-        <h1 className="text-2xl font-bold tracking-tight">Vocabulary Training</h1>
+        <div>
-        <p className="text-muted-foreground">Build your vocabulary for IELTS success.</p>
+          <h1 className="text-2xl font-bold tracking-tight">Vocabulary Training</h1>
+          <p className="text-muted-foreground">
+            Build and manage the vocabulary library — track completion by CEFR level.
+          </p>
+        </div>
+        <Button size="sm" onClick={() => setCreateOpen(true)}>
+          <Plus className="h-4 w-4 mr-1" /> Add Word
+        </Button>
       </div>
 
       <AiTipBanner context="vocabulary" variant="recommendation" />
 
       <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
         <div className="lg:col-span-2 space-y-4">
+          {/* Summary */}
           <Card className="border-0 shadow-sm">
             <CardHeader className="pb-3">
               <div className="flex items-center justify-between">
                 <CardTitle className="text-base">Progress</CardTitle>
-                <span className="text-sm text-muted-foreground">{completed}/{vocabItems.length} completed</span>
+                <span className="text-sm text-muted-foreground">
+                  {summary
+                    ? `${summary.completed}/${summary.total} completed (${summary.completion_rate}%)`
+                    : "—"}
+                </span>
               </div>
             </CardHeader>
             <CardContent>
-              <Progress value={(completed / vocabItems.length) * 100} className="h-3" />
+              <Progress value={summary?.completion_rate ?? 0} className="h-3" />
             </CardContent>
           </Card>
 
-          <div className="flex items-center gap-2">
+          {/* Filters */}
-            <Switch id="show" checked={showCompleted} onCheckedChange={setShowCompleted} />
+          <div className="flex flex-wrap gap-3 items-center">
-            <Label htmlFor="show" className="text-sm">Show completed</Label>
+            <div className="relative flex-1 max-w-sm">
+              <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
+              <Input
+                placeholder="Search word or meaning…"
+                className="pl-9"
+                value={search}
+                onChange={(e) => setSearch(e.target.value)}
+              />
+            </div>
+            <Select value={levelFilter} onValueChange={setLevelFilter}>
+              <SelectTrigger className="w-[110px]">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                {LEVELS.map((l) => (
+                  <SelectItem key={l} value={l}>
+                    {l === "all" ? "All levels" : l}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+            <div className="flex items-center gap-2">
+              <Switch id="show" checked={showCompleted} onCheckedChange={setShowCompleted} />
+              <Label htmlFor="show" className="text-sm">
+                Show completed
+              </Label>
+            </div>
           </div>
 
+          {/* List */}
           <div className="space-y-2">
+            {listQ.isLoading && (
+              <div className="py-8 text-center text-muted-foreground">
+                <Loader2 className="h-5 w-5 animate-spin mx-auto" />
+              </div>
+            )}
+            {!listQ.isLoading && filtered.length === 0 && (
+              <Card className="border-0 shadow-sm">
+                <CardContent className="text-center text-muted-foreground py-8">
+                  No vocabulary items match.
+                </CardContent>
+              </Card>
+            )}
             {filtered.map((v) => (
-              <Card key={v.word} className="border-0 shadow-sm">
+              <Card key={v.id} className="border-0 shadow-sm">
-                <CardContent className="p-4 flex items-center justify-between">
+                <CardContent className="p-4 flex items-center justify-between gap-3">
-                  <div className="flex items-center gap-3">
+                  <button
-                    {v.completed && <CheckCircle className="h-4 w-4 text-success shrink-0" />}
+                    onClick={() =>
-                    <div>
+                      progressMut.mutate({ id: v.id, completed: !v.completed })
-                      <p className="font-semibold text-sm">{v.word}</p>
+                    }
-                      <p className="text-xs text-muted-foreground">{v.meaning}</p>
+                    className="shrink-0 rounded-full p-0.5 hover:bg-muted transition"
-                    </div>
+                    aria-label={v.completed ? "Mark incomplete" : "Mark complete"}
+                  >
+                    {v.completed ? (
+                      <CheckCircle className="h-5 w-5 text-green-600" />
+                    ) : (
+                      <Circle className="h-5 w-5 text-muted-foreground" />
+                    )}
+                  </button>
+                  <div className="flex-1 min-w-0">
+                    <p className="font-semibold text-sm">{v.word}</p>
+                    <p className="text-xs text-muted-foreground truncate">{v.meaning}</p>
+                    {v.example_sentence && (
+                      <p className="text-xs italic text-muted-foreground mt-0.5 truncate">
+                        “{v.example_sentence}”
+                      </p>
+                    )}
+                  </div>
+                  <div className="flex items-center gap-2 shrink-0">
+                    <Badge variant="outline">{v.level}</Badge>
+                    <Badge variant="secondary" className="text-xs">
+                      {v.part_of_speech}
+                    </Badge>
+                    <Button
+                      variant="ghost"
+                      size="icon"
+                      className="h-7 w-7 text-destructive"
+                      onClick={() => delMut.mutate(v.id)}
+                    >
+                      <Trash2 className="h-4 w-4" />
+                    </Button>
                   </div>
-                  <Badge variant="outline">{v.level}</Badge>
                 </CardContent>
               </Card>
             ))}
           </div>
         </div>
 
+        {/* AI panel */}
         <div className="space-y-4">
           <Card className="border-0 shadow-sm">
             <CardHeader className="pb-3">
-              <CardTitle className="text-base flex items-center gap-2"><Sparkles className="h-4 w-4 text-primary" /> AI Recommendations</CardTitle>
+              <CardTitle className="text-base flex items-center gap-2">
+                <Sparkles className="h-4 w-4 text-primary" /> AI Recommendations
+              </CardTitle>
             </CardHeader>
             <CardContent>
               <ul className="space-y-2">
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Learn "coherent" + "concise" together — they share academic writing context</li>
+                <li className="text-sm text-muted-foreground flex items-start gap-2">
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Review C1-level vocabulary for IELTS Task 2</li>
+                  <span className="text-primary font-bold">•</span>
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Focus on collocations with 'make' and 'do'</li>
+                  Pair <b>coherent</b> + <b>concise</b> — they share academic-writing
-                <li className="text-sm text-muted-foreground flex items-start gap-2"><span className="text-primary font-bold">•</span>Try using "meticulous" in your next writing practice</li>
+                  contexts.
+                </li>
+                <li className="text-sm text-muted-foreground flex items-start gap-2">
+                  <span className="text-primary font-bold">•</span>
+                  Review C1 words for IELTS Writing Task 2.
+                </li>
+                <li className="text-sm text-muted-foreground flex items-start gap-2">
+                  <span className="text-primary font-bold">•</span>
+                  Try using <b>meticulous</b> in your next essay.
+                </li>
               </ul>
             </CardContent>
           </Card>
-          <Card className="border-0 shadow-sm border-primary/20 bg-primary/5">
+          {summary && (
-            <CardContent className="p-4">
+            <Card className="border-0 shadow-sm border-primary/20 bg-primary/5">
-              <p className="text-xs font-semibold text-primary flex items-center gap-1 mb-2"><Sparkles className="h-3 w-3" /> AI Vocabulary Goal</p>
+              <CardContent className="p-4">
-              <p className="text-sm text-muted-foreground">At 2 words/day, you'll complete this set by March 15. AI recommends adding 10 more domain-specific words from your upcoming exam topics.</p>
+                <p className="text-xs font-semibold text-primary flex items-center gap-1 mb-2">
-            </CardContent>
+                  <Sparkles className="h-3 w-3" /> AI Vocabulary Goal
-          </Card>
+                </p>
+                <p className="text-sm text-muted-foreground">
+                  {summary.remaining > 0
+                    ? `At 2 words/day, you'll complete the remaining ${summary.remaining} items in about ${Math.ceil(summary.remaining / 2)} days.`
+                    : "You've completed every active word — try adding more to keep challenging yourself."}
+                </p>
+              </CardContent>
+            </Card>
+          )}
         </div>
       </div>
+
+      {/* Create dialog */}
+      <Dialog open={createOpen} onOpenChange={setCreateOpen}>
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>Add Vocabulary Word</DialogTitle>
+          </DialogHeader>
+          <div className="space-y-3">
+            <div className="space-y-2">
+              <Label>Word</Label>
+              <Input
+                value={form.word}
+                onChange={(e) => setForm((f) => ({ ...f, word: e.target.value }))}
+                placeholder="e.g. Ubiquitous"
+              />
+            </div>
+            <div className="space-y-2">
+              <Label>Meaning</Label>
+              <Textarea
+                value={form.meaning}
+                onChange={(e) => setForm((f) => ({ ...f, meaning: e.target.value }))}
+                placeholder="Plain-English definition"
+              />
+            </div>
+            <div className="space-y-2">
+              <Label>Example sentence (optional)</Label>
+              <Textarea
+                value={form.example_sentence}
+                onChange={(e) =>
+                  setForm((f) => ({ ...f, example_sentence: e.target.value }))
+                }
+                placeholder="Use the word in context"
+              />
+            </div>
+            <div className="grid grid-cols-2 gap-3">
+              <div className="space-y-2">
+                <Label>CEFR level</Label>
+                <Select
+                  value={form.level}
+                  onValueChange={(v) =>
+                    setForm((f) => ({ ...f, level: v as CefrLevel }))
+                  }
+                >
+                  <SelectTrigger>
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    {(LEVELS.filter((l) => l !== "all") as CefrLevel[]).map(
+                      (l) => (
+                        <SelectItem key={l} value={l}>
+                          {l}
+                        </SelectItem>
+                      ),
+                    )}
+                  </SelectContent>
+                </Select>
+              </div>
+              <div className="space-y-2">
+                <Label>Part of speech</Label>
+                <Select
+                  value={form.part_of_speech}
+                  onValueChange={(v) =>
+                    setForm((f) => ({
+                      ...f,
+                      part_of_speech: v as VocabItem["part_of_speech"],
+                    }))
+                  }
+                >
+                  <SelectTrigger>
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="noun">noun</SelectItem>
+                    <SelectItem value="verb">verb</SelectItem>
+                    <SelectItem value="adjective">adjective</SelectItem>
+                    <SelectItem value="adverb">adverb</SelectItem>
+                    <SelectItem value="phrase">phrase</SelectItem>
+                    <SelectItem value="other">other</SelectItem>
+                  </SelectContent>
+                </Select>
+              </div>
+            </div>
+            <div className="space-y-2">
+              <Label>Category</Label>
+              <Input
+                value={form.category}
+                onChange={(e) => setForm((f) => ({ ...f, category: e.target.value }))}
+              />
+            </div>
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setCreateOpen(false)}>
+              Cancel
+            </Button>
+            <Button
+              disabled={!form.word.trim() || !form.meaning.trim() || createMut.isPending}
+              onClick={() => createMut.mutate(form)}
+            >
+              {createMut.isPending ? (
+                <>
+                  <Loader2 className="h-4 w-4 mr-1 animate-spin" /> Adding…
+                </>
+              ) : (
+                "Add"
+              )}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

src/pages/admin/AIAgentsPanel.tsx

@@ -0,0 +1,842 @@
+import { useEffect, useMemo, useState } from "react";
+import { useTranslation } from "react-i18next";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { toast } from "sonner";
+import {
+  Activity,
+  Bot,
+  CheckCircle2,
+  ChevronRight,
+  PencilLine,
+  PlayCircle,
+  RotateCcw,
+  Search,
+  Settings2,
+  Wrench,
+} from "lucide-react";
+
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { Checkbox } from "@/components/ui/checkbox";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { Skeleton } from "@/components/ui/skeleton";
+import { Switch } from "@/components/ui/switch";
+import { Textarea } from "@/components/ui/textarea";
+import { aiAgentService } from "@/services/aiAgent.service";
+import type {
+  AIAgent,
+  AIAgentSummary,
+  AIAgentTestResponse,
+  AIAgentUpdateInput,
+  AIToolSummary,
+} from "@/types/aiAgent";
+
+const MODEL_OPTIONS = [
+  { value: "gpt-4o", label: "GPT-4o (quality)" },
+  { value: "gpt-4o-mini", label: "GPT-4o mini (cheap / fast)" },
+  { value: "gpt-4.1", label: "GPT-4.1" },
+  { value: "gpt-4.1-mini", label: "GPT-4.1 mini" },
+  { value: "gpt-3.5-turbo", label: "GPT-3.5 turbo (legacy)" },
+];
+
+const GRAPH_OPTIONS = [
+  { value: "simple", labelKey: "agents.graph.simple" },
+  { value: "plan_review_revise", labelKey: "agents.graph.planReviewRevise" },
+  { value: "rag", labelKey: "agents.graph.rag" },
+  { value: "react", labelKey: "agents.graph.react" },
+];
+
+function GraphTypeBadge({ value }: { value: string }) {
+  const { t } = useTranslation();
+  const text = t(`agents.graph.${value === "plan_review_revise" ? "planReviewRevise" : value}`, value);
+  const tone =
+    value === "react"
+      ? "bg-purple-500"
+      : value === "rag"
+      ? "bg-blue-500"
+      : value === "plan_review_revise"
+      ? "bg-emerald-500"
+      : "bg-slate-500";
+  return <Badge className={`${tone} text-white hover:${tone}`}>{text}</Badge>;
+}
+
+// ============================================================================
+// Agent list (left rail)
+// ============================================================================
+function AgentsList({
+  agents,
+  selectedId,
+  onSelect,
+  isLoading,
+  search,
+  onSearch,
+}: {
+  agents: AIAgentSummary[];
+  selectedId: number | null;
+  onSelect: (id: number) => void;
+  isLoading: boolean;
+  search: string;
+  onSearch: (v: string) => void;
+}) {
+  const { t } = useTranslation();
+  return (
+    <Card className="lg:col-span-1">
+      <CardHeader className="pb-3">
+        <CardTitle className="flex items-center gap-2 text-base">
+          <Bot className="h-4 w-4" />
+          {t("agents.list.title", "Agents")}
+        </CardTitle>
+        <CardDescription>
+          {t(
+            "agents.list.subtitle",
+            "Pre-configured for every platform pillar — edit defaults below.",
+          )}
+        </CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-2">
+        <div className="relative">
+          <Search className="text-muted-foreground absolute start-2 top-1/2 h-4 w-4 -translate-y-1/2" />
+          <Input
+            value={search}
+            onChange={(e) => onSearch(e.target.value)}
+            placeholder={t("agents.list.search", "Search agents…")}
+            className="ps-8"
+          />
+        </div>
+        {isLoading ? (
+          <Skeleton className="h-64 w-full" />
+        ) : agents.length === 0 ? (
+          <p className="text-muted-foreground py-6 text-center text-sm">
+            {t("agents.list.empty", "No agents match your search.")}
+          </p>
+        ) : (
+          <ScrollArea className="h-[480px] pe-2">
+            <ul className="space-y-1">
+              {agents.map((a) => {
+                const active = selectedId === a.id;
+                return (
+                  <li key={a.id}>
+                    <button
+                      type="button"
+                      onClick={() => onSelect(a.id)}
+                      className={`w-full rounded-md border p-3 text-start transition-colors ${
+                        active
+                          ? "border-primary bg-primary/5"
+                          : "hover:bg-muted/40 border-transparent"
+                      }`}
+                    >
+                      <div className="flex items-start justify-between gap-2">
+                        <div className="min-w-0 flex-1">
+                          <div className="truncate text-sm font-medium">{a.name}</div>
+                          <div className="text-muted-foreground truncate font-mono text-xs">
+                            {a.key}
+                          </div>
+                        </div>
+                        <ChevronRight className="text-muted-foreground h-4 w-4 flex-shrink-0" />
+                      </div>
+                      <div className="mt-2 flex flex-wrap items-center gap-1.5">
+                        <GraphTypeBadge value={a.graph_type} />
+                        <Badge variant="outline" className="text-xs">
+                          {a.model}
+                        </Badge>
+                        <Badge variant="outline" className="text-xs">
+                          <Wrench className="me-1 h-3 w-3" />
+                          {a.tool_count}
+                        </Badge>
+                        {!a.active ? (
+                          <Badge variant="secondary" className="text-xs">
+                            {t("common.disabled", "Disabled")}
+                          </Badge>
+                        ) : null}
+                      </div>
+                    </button>
+                  </li>
+                );
+              })}
+            </ul>
+          </ScrollArea>
+        )}
+      </CardContent>
+    </Card>
+  );
+}
+
+// ============================================================================
+// Test panel (run a small input through the agent)
+// ============================================================================
+function AgentTestRunner({ agent }: { agent: AIAgent }) {
+  const { t } = useTranslation();
+  const [variables, setVariables] = useState<string>("{}");
+  const [payload, setPayload] = useState<string>("");
+  const [result, setResult] = useState<AIAgentTestResponse | null>(null);
+
+  const test = useMutation({
+    mutationFn: async () => {
+      let parsedVars: Record<string, unknown> = {};
+      try {
+        parsedVars = variables.trim() ? JSON.parse(variables) : {};
+      } catch {
+        throw new Error(t("agents.test.badVarsJson", "Variables must be valid JSON."));
+      }
+      let parsedPayload: unknown = payload;
+      const trimmed = payload.trim();
+      if (trimmed.startsWith("{") || trimmed.startsWith("[")) {
+        try {
+          parsedPayload = JSON.parse(trimmed);
+        } catch {
+          parsedPayload = payload;
+        }
+      }
+      return aiAgentService.test(agent.id, {
+        variables: parsedVars,
+        payload: parsedPayload,
+      });
+    },
+    onSuccess: (res) => {
+      setResult(res);
+      if (res.error) {
+        toast.error(res.error);
+      } else {
+        toast.success(t("agents.test.ok", "Agent ran successfully"));
+      }
+    },
+    onError: (err: Error) => toast.error(err.message),
+  });
+
+  return (
+    <Card>
+      <CardHeader className="pb-3">
+        <CardTitle className="flex items-center gap-2 text-base">
+          <PlayCircle className="h-4 w-4" />
+          {t("agents.test.title", "Test runner")}
+        </CardTitle>
+        <CardDescription>
+          {t(
+            "agents.test.subtitle",
+            "Send a small payload and inspect the agent's output, tool calls, and quality issues.",
+          )}
+        </CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-3">
+        <div className="grid gap-3 md:grid-cols-2">
+          <div className="space-y-1">
+            <Label className="text-xs">
+              {t("agents.test.variables", "Variables (JSON)")}
+            </Label>
+            <Textarea
+              value={variables}
+              onChange={(e) => setVariables(e.target.value)}
+              placeholder='{"cefr_level": "b1"}'
+              className="min-h-[120px] font-mono text-xs"
+            />
+          </div>
+          <div className="space-y-1">
+            <Label className="text-xs">
+              {t("agents.test.payload", "Payload (text or JSON)")}
+            </Label>
+            <Textarea
+              value={payload}
+              onChange={(e) => setPayload(e.target.value)}
+              placeholder={t(
+                "agents.test.payloadPlaceholder",
+                "What should the agent do? e.g. 'Generate 5 MCQ for B1 reading.'",
+              )}
+              className="min-h-[120px] text-sm"
+            />
+          </div>
+        </div>
+        <Button onClick={() => test.mutate()} disabled={test.isPending}>
+          <PlayCircle className="me-1 h-4 w-4" />
+          {test.isPending
+            ? t("agents.test.running", "Running…")
+            : t("agents.test.run", "Run agent")}
+        </Button>
+        {result ? (
+          <div className="space-y-3">
+            <div className="flex flex-wrap gap-2 text-xs">
+              <Badge variant="outline">
+                <Activity className="me-1 h-3 w-3" />
+                {t("agents.test.iterations", "Iterations")}: {result.iterations}
+              </Badge>
+              <Badge variant="outline">
+                <RotateCcw className="me-1 h-3 w-3" />
+                {t("agents.test.revisions", "Revisions")}: {result.revisions_used}
+              </Badge>
+              <Badge variant="outline">
+                {t("agents.test.toolCalls", "Tool calls")}: {result.tool_results.length}
+              </Badge>
+              <Badge variant="outline">
+                {t("agents.test.retrievalHits", "Retrieval hits")}: {result.retrieval_hits}
+              </Badge>
+              {result.quality_issues.length ? (
+                <Badge className="bg-amber-500 text-white hover:bg-amber-500">
+                  {t("agents.test.qualityIssues", "Quality issues")}: {result.quality_issues.length}
+                </Badge>
+              ) : null}
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs uppercase tracking-wide">
+                {t("agents.test.output", "Output")}
+              </Label>
+              <pre className="bg-muted/50 max-h-[300px] overflow-auto rounded-md p-3 text-xs">
+                {typeof result.output === "string"
+                  ? result.output
+                  : JSON.stringify(result.output, null, 2)}
+              </pre>
+            </div>
+            {result.tool_results.length ? (
+              <details className="rounded-md border p-2">
+                <summary className="cursor-pointer text-xs font-medium">
+                  {t("agents.test.toolTrace", "Tool trace")}
+                </summary>
+                <pre className="mt-2 max-h-[260px] overflow-auto text-xs">
+                  {JSON.stringify(result.tool_results, null, 2)}
+                </pre>
+              </details>
+            ) : null}
+          </div>
+        ) : null}
+      </CardContent>
+    </Card>
+  );
+}
+
+// ============================================================================
+// Configure dialog
+// ============================================================================
+function ConfigureAgentDialog({
+  agent,
+  tools,
+  open,
+  onOpenChange,
+}: {
+  agent: AIAgent;
+  tools: AIToolSummary[];
+  open: boolean;
+  onOpenChange: (v: boolean) => void;
+}) {
+  const { t } = useTranslation();
+  const qc = useQueryClient();
+  const [draft, setDraft] = useState<AIAgentUpdateInput>({});
+
+  useEffect(() => {
+    if (open) {
+      setDraft({
+        name: agent.name,
+        description: agent.description,
+        system_prompt: agent.system_prompt,
+        prompt_key: agent.prompt_key,
+        model: agent.model,
+        fallback_model: agent.fallback_model,
+        temperature: agent.temperature,
+        max_tokens: agent.max_tokens,
+        max_revisions: agent.max_revisions,
+        response_format: agent.response_format,
+        graph_type: agent.graph_type,
+        quality_checks: (agent.quality_checks || []).join(","),
+        tool_keys: agent.tool_keys,
+        active: agent.active,
+      });
+    }
+  }, [open, agent]);
+
+  const update = useMutation({
+    mutationFn: (input: AIAgentUpdateInput) => aiAgentService.update(agent.id, input),
+    onSuccess: () => {
+      toast.success(t("agents.config.saved", "Agent configuration saved"));
+      qc.invalidateQueries({ queryKey: ["ai-agents"] });
+      qc.invalidateQueries({ queryKey: ["ai-agent", agent.id] });
+      onOpenChange(false);
+    },
+    onError: (err: Error) => toast.error(err.message),
+  });
+
+  const toggleTool = (key: string) => {
+    const current = new Set(draft.tool_keys ?? []);
+    if (current.has(key)) current.delete(key);
+    else current.add(key);
+    setDraft({ ...draft, tool_keys: Array.from(current) });
+  };
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-h-[90vh] max-w-3xl overflow-y-auto">
+        <DialogHeader>
+          <DialogTitle>
+            {t("agents.config.title", "Configure")} — {agent.name}
+          </DialogTitle>
+          <DialogDescription className="font-mono text-xs">
+            {agent.key}
+          </DialogDescription>
+        </DialogHeader>
+
+        <div className="space-y-4 py-2">
+          {/* Identity */}
+          <div className="grid gap-3 md:grid-cols-2">
+            <div className="space-y-1">
+              <Label className="text-xs">{t("agents.config.name", "Display name")}</Label>
+              <Input
+                value={draft.name ?? ""}
+                onChange={(e) => setDraft({ ...draft, name: e.target.value })}
+              />
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs">
+                {t("agents.config.promptKey", "Prompt key (versioned)")}
+              </Label>
+              <Input
+                value={draft.prompt_key ?? ""}
+                placeholder="e.g. course_planner.system"
+                onChange={(e) => setDraft({ ...draft, prompt_key: e.target.value })}
+              />
+            </div>
+          </div>
+          <div className="space-y-1">
+            <Label className="text-xs">{t("agents.config.description", "Description")}</Label>
+            <Textarea
+              value={draft.description ?? ""}
+              onChange={(e) => setDraft({ ...draft, description: e.target.value })}
+              className="min-h-[60px]"
+            />
+          </div>
+          <div className="space-y-1">
+            <Label className="text-xs">{t("agents.config.systemPrompt", "System prompt")}</Label>
+            <Textarea
+              value={draft.system_prompt ?? ""}
+              onChange={(e) => setDraft({ ...draft, system_prompt: e.target.value })}
+              className="min-h-[200px] font-mono text-xs"
+            />
+            <p className="text-muted-foreground text-xs">
+              {t(
+                "agents.config.systemPromptHint",
+                "If a prompt key is set above, the active version of that prompt overrides this field at runtime.",
+              )}
+            </p>
+          </div>
+
+          {/* Runtime config */}
+          <div className="grid gap-3 md:grid-cols-3">
+            <div className="space-y-1">
+              <Label className="text-xs">{t("agents.config.model", "Model")}</Label>
+              <Select
+                value={draft.model ?? agent.model}
+                onValueChange={(v) => setDraft({ ...draft, model: v })}
+              >
+                <SelectTrigger><SelectValue /></SelectTrigger>
+                <SelectContent>
+                  {MODEL_OPTIONS.map((m) => (
+                    <SelectItem key={m.value} value={m.value}>{m.label}</SelectItem>
+                  ))}
+                </SelectContent>
+              </Select>
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs">
+                {t("agents.config.fallbackModel", "Fallback model")}
+              </Label>
+              <Select
+                value={draft.fallback_model ?? agent.fallback_model}
+                onValueChange={(v) => setDraft({ ...draft, fallback_model: v })}
+              >
+                <SelectTrigger><SelectValue /></SelectTrigger>
+                <SelectContent>
+                  {MODEL_OPTIONS.map((m) => (
+                    <SelectItem key={m.value} value={m.value}>{m.label}</SelectItem>
+                  ))}
+                </SelectContent>
+              </Select>
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs">{t("agents.config.responseFormat", "Output format")}</Label>
+              <Select
+                value={draft.response_format ?? agent.response_format}
+                onValueChange={(v) =>
+                  setDraft({ ...draft, response_format: v as "text" | "json" })
+                }
+              >
+                <SelectTrigger><SelectValue /></SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="json">JSON</SelectItem>
+                  <SelectItem value="text">{t("agents.config.text", "Text")}</SelectItem>
+                </SelectContent>
+              </Select>
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs">
+                {t("agents.config.temperature", "Temperature")}
+              </Label>
+              <Input
+                type="number"
+                step="0.1"
+                min={0}
+                max={2}
+                value={draft.temperature ?? agent.temperature}
+                onChange={(e) =>
+                  setDraft({ ...draft, temperature: Number(e.target.value) })
+                }
+              />
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs">
+                {t("agents.config.maxTokens", "Max tokens")}
+              </Label>
+              <Input
+                type="number"
+                min={64}
+                max={32000}
+                value={draft.max_tokens ?? agent.max_tokens}
+                onChange={(e) =>
+                  setDraft({ ...draft, max_tokens: Number(e.target.value) })
+                }
+              />
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs">
+                {t("agents.config.maxRevisions", "Max revisions")}
+              </Label>
+              <Input
+                type="number"
+                min={0}
+                max={5}
+                value={draft.max_revisions ?? agent.max_revisions}
+                onChange={(e) =>
+                  setDraft({ ...draft, max_revisions: Number(e.target.value) })
+                }
+              />
+            </div>
+          </div>
+
+          {/* Graph */}
+          <div className="space-y-1">
+            <Label className="text-xs">
+              {t("agents.config.graphType", "Graph topology")}
+            </Label>
+            <Select
+              value={draft.graph_type ?? agent.graph_type}
+              onValueChange={(v) =>
+                setDraft({ ...draft, graph_type: v as AIAgent["graph_type"] })
+              }
+            >
+              <SelectTrigger><SelectValue /></SelectTrigger>
+              <SelectContent>
+                {GRAPH_OPTIONS.map((g) => (
+                  <SelectItem key={g.value} value={g.value}>
+                    {t(g.labelKey, g.value)}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+          <div className="space-y-1">
+            <Label className="text-xs">
+              {t("agents.config.qualityChecks", "Quality checks (comma-separated tool keys)")}
+            </Label>
+            <Input
+              value={draft.quality_checks ?? ""}
+              onChange={(e) =>
+                setDraft({ ...draft, quality_checks: e.target.value })
+              }
+              placeholder="quality.cefr_check,quality.ai_detect"
+              className="font-mono text-xs"
+            />
+          </div>
+
+          {/* Tools */}
+          <div className="space-y-2">
+            <Label className="text-xs">{t("agents.config.tools", "Enabled tools")}</Label>
+            <div className="grid gap-2 md:grid-cols-2">
+              {tools.map((tool) => {
+                const enabled = (draft.tool_keys ?? []).includes(tool.key);
+                return (
+                  <label
+                    key={tool.id}
+                    className={`flex items-start gap-2 rounded-md border p-2 text-xs transition-colors ${
+                      enabled ? "border-primary bg-primary/5" : ""
+                    }`}
+                  >
+                    <Checkbox
+                      checked={enabled}
+                      onCheckedChange={() => toggleTool(tool.key)}
+                      className="mt-0.5"
+                    />
+                    <div className="min-w-0 flex-1">
+                      <div className="flex flex-wrap items-center gap-1">
+                        <span className="font-mono text-xs">{tool.key}</span>
+                        <Badge variant="outline" className="text-[10px] uppercase">
+                          {tool.category}
+                        </Badge>
+                        {tool.mutates ? (
+                          <Badge className="bg-amber-500 text-white hover:bg-amber-500 text-[10px]">
+                            {t("agents.config.mutates", "writes")}
+                          </Badge>
+                        ) : null}
+                      </div>
+                      <p className="text-muted-foreground mt-0.5 line-clamp-2">
+                        {tool.description}
+                      </p>
+                    </div>
+                  </label>
+                );
+              })}
+            </div>
+          </div>
+
+          <div className="flex items-center gap-2">
+            <Switch
+              checked={draft.active ?? agent.active}
+              onCheckedChange={(v) => setDraft({ ...draft, active: v })}
+            />
+            <Label className="text-xs">
+              {t("agents.config.active", "Agent is active")}
+            </Label>
+          </div>
+        </div>
+
+        <DialogFooter>
+          <Button variant="ghost" onClick={() => onOpenChange(false)}>
+            {t("common.cancel", "Cancel")}
+          </Button>
+          <Button onClick={() => update.mutate(draft)} disabled={update.isPending}>
+            <CheckCircle2 className="me-1 h-4 w-4" />
+            {update.isPending
+              ? t("common.saving", "Saving…")
+              : t("common.save", "Save changes")}
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}
+
+// ============================================================================
+// Detail panel
+// ============================================================================
+function AgentDetail({ agent, tools }: { agent: AIAgent; tools: AIToolSummary[] }) {
+  const { t } = useTranslation();
+  const [configOpen, setConfigOpen] = useState(false);
+  return (
+    <div className="space-y-4 lg:col-span-2">
+      <Card>
+        <CardHeader>
+          <div className="flex items-start justify-between gap-3">
+            <div>
+              <CardTitle className="text-xl">{agent.name}</CardTitle>
+              <CardDescription className="font-mono text-xs">
+                {agent.key}
+              </CardDescription>
+              {agent.description ? (
+                <p className="mt-2 text-sm">{agent.description}</p>
+              ) : null}
+            </div>
+            <Button variant="outline" onClick={() => setConfigOpen(true)}>
+              <Settings2 className="me-1 h-4 w-4" />
+              {t("agents.detail.configure", "Configure")}
+            </Button>
+          </div>
+        </CardHeader>
+        <CardContent>
+          <div className="grid grid-cols-2 gap-3 text-sm md:grid-cols-4">
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.graph", "Graph")}
+              </div>
+              <div className="mt-1"><GraphTypeBadge value={agent.graph_type} /></div>
+            </div>
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.model", "Model")}
+              </div>
+              <div className="mt-1 font-mono text-sm">{agent.model}</div>
+            </div>
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.temperature", "Temperature")}
+              </div>
+              <div className="mt-1 font-mono text-sm">{agent.temperature.toFixed(2)}</div>
+            </div>
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.tokens", "Max tokens")}
+              </div>
+              <div className="mt-1 font-mono text-sm">{agent.max_tokens}</div>
+            </div>
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.format", "Output format")}
+              </div>
+              <div className="mt-1 text-sm">
+                {agent.response_format === "json" ? "JSON" : t("agents.config.text", "Text")}
+              </div>
+            </div>
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.fallback", "Fallback")}
+              </div>
+              <div className="mt-1 font-mono text-sm">
+                {agent.fallback_model || "—"}
+              </div>
+            </div>
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.revisions", "Max revisions")}
+              </div>
+              <div className="mt-1 font-mono text-sm">{agent.max_revisions}</div>
+            </div>
+            <div>
+              <div className="text-muted-foreground text-xs">
+                {t("agents.detail.promptKey", "Prompt key")}
+              </div>
+              <div className="mt-1 font-mono text-xs">
+                {agent.prompt_key || "—"}
+              </div>
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader className="pb-2">
+          <CardTitle className="flex items-center gap-2 text-base">
+            <Wrench className="h-4 w-4" />
+            {t("agents.detail.toolsTitle", "Enabled tools")} ({agent.tools.length})
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          {agent.tools.length === 0 ? (
+            <p className="text-muted-foreground text-sm">
+              {t("agents.detail.noTools", "This agent has no tools enabled.")}
+            </p>
+          ) : (
+            <ul className="space-y-2">
+              {agent.tools.map((tool) => (
+                <li key={tool.id} className="rounded-md border p-2 text-sm">
+                  <div className="flex flex-wrap items-center gap-2">
+                    <span className="font-mono text-xs">{tool.key}</span>
+                    <Badge variant="outline" className="text-[10px] uppercase">
+                      {tool.category}
+                    </Badge>
+                    {tool.mutates ? (
+                      <Badge className="bg-amber-500 text-white hover:bg-amber-500 text-[10px]">
+                        {t("agents.config.mutates", "writes")}
+                      </Badge>
+                    ) : null}
+                  </div>
+                  <p className="text-muted-foreground mt-1 text-xs">{tool.description}</p>
+                </li>
+              ))}
+            </ul>
+          )}
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader className="pb-2">
+          <CardTitle className="flex items-center gap-2 text-base">
+            <PencilLine className="h-4 w-4" />
+            {t("agents.detail.systemPrompt", "System prompt")}
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          <pre className="bg-muted/50 max-h-[260px] overflow-auto rounded-md p-3 text-xs">
+            {agent.system_prompt || t("agents.detail.noPrompt", "(empty)")}
+          </pre>
+        </CardContent>
+      </Card>
+
+      <AgentTestRunner agent={agent} />
+
+      <ConfigureAgentDialog
+        agent={agent}
+        tools={tools}
+        open={configOpen}
+        onOpenChange={setConfigOpen}
+      />
+    </div>
+  );
+}
+
+// ============================================================================
+// Top-level Agents tab
+// ============================================================================
+export function AIAgentsPanel() {
+  const { t } = useTranslation();
+  const [search, setSearch] = useState("");
+  const [selectedId, setSelectedId] = useState<number | null>(null);
+
+  const agentsQ = useQuery({
+    queryKey: ["ai-agents", { search }],
+    queryFn: () => aiAgentService.list(search ? { search } : undefined),
+  });
+
+  const toolsQ = useQuery({
+    queryKey: ["ai-agent-tools"],
+    queryFn: () => aiAgentService.listTools(),
+  });
+
+  // Auto-select first agent.
+  useEffect(() => {
+    if (!selectedId && agentsQ.data && agentsQ.data.length > 0) {
+      setSelectedId(agentsQ.data[0].id);
+    }
+  }, [selectedId, agentsQ.data]);
+
+  const detailQ = useQuery({
+    queryKey: ["ai-agent", selectedId],
+    queryFn: () => aiAgentService.get(selectedId as number),
+    enabled: !!selectedId,
+  });
+
+  const filteredAgents = useMemo(() => agentsQ.data ?? [], [agentsQ.data]);
+
+  return (
+    <div className="grid gap-4 lg:grid-cols-3">
+      <AgentsList
+        agents={filteredAgents}
+        selectedId={selectedId}
+        onSelect={setSelectedId}
+        isLoading={agentsQ.isLoading}
+        search={search}
+        onSearch={setSearch}
+      />
+      {detailQ.data ? (
+        <AgentDetail agent={detailQ.data} tools={toolsQ.data ?? []} />
+      ) : selectedId ? (
+        <Card className="lg:col-span-2">
+          <CardContent className="p-6">
+            <Skeleton className="h-72 w-full" />
+          </CardContent>
+        </Card>
+      ) : (
+        <Card className="lg:col-span-2">
+          <CardContent className="text-muted-foreground p-6 text-sm">
+            {t("agents.detail.empty", "Select an agent to inspect its configuration.")}
+          </CardContent>
+        </Card>
+      )}
+    </div>
+  );
+}

src/pages/admin/AIFeedbackTriage.tsx

@@ -0,0 +1,348 @@
+import { useMemo, useState } from "react";
+import { CheckCircle2, Filter, MessageSquare, ThumbsDown, ThumbsUp } from "lucide-react";
+import { toast } from "sonner";
+
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import {
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { Skeleton } from "@/components/ui/skeleton";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+import { Textarea } from "@/components/ui/textarea";
+import {
+  useAIFeedbackList,
+  useResolveAIFeedback,
+} from "@/hooks/queries/useAIFeedback";
+import type {
+  AIFeedback,
+  AIFeedbackStatus,
+  AIFeedbackSubjectType,
+} from "@/types/ai-feedback";
+
+const STATUS_COLORS: Record<AIFeedbackStatus, string> = {
+  open: "bg-amber-100 text-amber-900 border-amber-300",
+  acknowledged: "bg-sky-100 text-sky-900 border-sky-300",
+  fixed: "bg-emerald-100 text-emerald-900 border-emerald-300",
+  dismissed: "bg-slate-100 text-slate-700 border-slate-300",
+};
+
+type ResolveChoice = Exclude<AIFeedbackStatus, "open">;
+
+function ResolveDialog({
+  feedback,
+  onClose,
+}: {
+  feedback: AIFeedback | null;
+  onClose: () => void;
+}) {
+  const resolve = useResolveAIFeedback();
+  const [status, setStatus] = useState<ResolveChoice>("acknowledged");
+  const [notes, setNotes] = useState("");
+
+  const open = !!feedback;
+
+  return (
+    <Dialog open={open} onOpenChange={(v) => (!v ? onClose() : null)}>
+      <DialogContent
+        className="max-w-lg"
+        description="Triage this feedback by setting its status and leaving a short note for the audit trail."
+      >
+        <DialogHeader>
+          <DialogTitle>Resolve feedback</DialogTitle>
+        </DialogHeader>
+        <div className="space-y-3">
+          <div className="space-y-1">
+            <div className="text-muted-foreground text-xs uppercase">
+              Status
+            </div>
+            <Select
+              value={status}
+              onValueChange={(v) => setStatus(v as ResolveChoice)}
+            >
+              <SelectTrigger>
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="acknowledged">Acknowledged</SelectItem>
+                <SelectItem value="fixed">Fixed</SelectItem>
+                <SelectItem value="dismissed">Dismissed</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+          <div>
+            <div className="text-muted-foreground text-xs uppercase">
+              Notes
+            </div>
+            <Textarea
+              value={notes}
+              onChange={(e) => setNotes(e.target.value)}
+              rows={4}
+              placeholder="What did you do? (optional)"
+            />
+          </div>
+        </div>
+        <DialogFooter>
+          <Button variant="outline" onClick={onClose}>
+            Cancel
+          </Button>
+          <Button
+            onClick={async () => {
+              if (!feedback) return;
+              try {
+                await resolve.mutateAsync({
+                  id: feedback.id,
+                  status,
+                  notes,
+                });
+                toast.success(`Marked ${status}`);
+                setNotes("");
+                onClose();
+              } catch (err) {
+                toast.error(
+                  err instanceof Error ? err.message : "Resolve failed",
+                );
+              }
+            }}
+            disabled={resolve.isPending}
+          >
+            <CheckCircle2 className="mr-1 h-4 w-4" />
+            Save
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}
+
+export default function AIFeedbackTriage() {
+  const [statusFilter, setStatusFilter] = useState<AIFeedbackStatus | "all">("open");
+  const [ratingFilter, setRatingFilter] = useState<"up" | "down" | "all">("down");
+  const [subjectFilter, setSubjectFilter] = useState<
+    AIFeedbackSubjectType | "all"
+  >("all");
+  const [selected, setSelected] = useState<AIFeedback | null>(null);
+
+  const params = useMemo(
+    () => ({
+      status: statusFilter === "all" ? undefined : statusFilter,
+      rating: ratingFilter === "all" ? undefined : ratingFilter,
+      subject_type: subjectFilter === "all" ? undefined : subjectFilter,
+      page: 0,
+      size: 50,
+    }),
+    [statusFilter, ratingFilter, subjectFilter],
+  );
+  const { data, isLoading } = useAIFeedbackList(params);
+  const items: AIFeedback[] = data?.items ?? [];
+
+  return (
+    <div className="mx-auto max-w-7xl space-y-6 p-6">
+      <div>
+        <h1 className="text-2xl font-semibold tracking-tight">
+          <MessageSquare className="mr-1 inline h-5 w-5" />
+          AI feedback triage
+        </h1>
+        <p className="text-muted-foreground mt-1 text-sm">
+          Student thumbs up/down on AI output — use this to catch broken
+          prompts, bad questions, and low-quality coach replies.
+        </p>
+      </div>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>
+            <Filter className="mr-1 inline h-4 w-4" />
+            Filters
+          </CardTitle>
+          <CardDescription>
+            Default view surfaces open thumbs-down reports, which are usually
+            the most actionable.
+          </CardDescription>
+        </CardHeader>
+        <CardContent className="flex flex-wrap gap-3">
+          <div className="space-y-1">
+            <div className="text-muted-foreground text-xs uppercase">
+              Status
+            </div>
+            <Select
+              value={statusFilter}
+              onValueChange={(v) =>
+                setStatusFilter(v as AIFeedbackStatus | "all")
+              }
+            >
+              <SelectTrigger className="w-40">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="all">All</SelectItem>
+                <SelectItem value="open">Open</SelectItem>
+                <SelectItem value="acknowledged">Acknowledged</SelectItem>
+                <SelectItem value="fixed">Fixed</SelectItem>
+                <SelectItem value="dismissed">Dismissed</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+          <div className="space-y-1">
+            <div className="text-muted-foreground text-xs uppercase">
+              Rating
+            </div>
+            <Select
+              value={ratingFilter}
+              onValueChange={(v) => setRatingFilter(v as "up" | "down" | "all")}
+            >
+              <SelectTrigger className="w-40">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="all">All</SelectItem>
+                <SelectItem value="down">Thumbs down</SelectItem>
+                <SelectItem value="up">Thumbs up</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+          <div className="space-y-1">
+            <div className="text-muted-foreground text-xs uppercase">
+              Type
+            </div>
+            <Select
+              value={subjectFilter}
+              onValueChange={(v) =>
+                setSubjectFilter(v as AIFeedbackSubjectType | "all")
+              }
+            >
+              <SelectTrigger className="w-44">
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="all">All</SelectItem>
+                <SelectItem value="question">Exam question</SelectItem>
+                <SelectItem value="coach">Coach reply</SelectItem>
+                <SelectItem value="explanation">Explanation</SelectItem>
+                <SelectItem value="translation">Translation</SelectItem>
+                <SelectItem value="narrative">Report narrative</SelectItem>
+                <SelectItem value="other">Other</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>Feedback ({data?.total ?? 0})</CardTitle>
+        </CardHeader>
+        <CardContent>
+          {isLoading ? (
+            <Skeleton className="h-40 w-full" />
+          ) : items.length === 0 ? (
+            <p className="text-muted-foreground text-sm">
+              No feedback matches the current filters.
+            </p>
+          ) : (
+            <Table>
+              <TableHeader>
+                <TableRow>
+                  <TableHead>When</TableHead>
+                  <TableHead>User</TableHead>
+                  <TableHead>Subject</TableHead>
+                  <TableHead>Rating</TableHead>
+                  <TableHead>Prompt</TableHead>
+                  <TableHead>Comment</TableHead>
+                  <TableHead>Status</TableHead>
+                  <TableHead className="text-right">Actions</TableHead>
+                </TableRow>
+              </TableHeader>
+              <TableBody>
+                {items.map((f) => (
+                  <TableRow key={f.id}>
+                    <TableCell className="text-muted-foreground text-xs whitespace-nowrap">
+                      {f.create_date
+                        ? new Date(f.create_date).toLocaleString()
+                        : "—"}
+                    </TableCell>
+                    <TableCell className="text-sm">{f.user_name}</TableCell>
+                    <TableCell className="font-mono text-xs">
+                      {f.subject_key}
+                    </TableCell>
+                    <TableCell>
+                      {f.rating === "up" ? (
+                        <Badge className="bg-emerald-500 text-white hover:bg-emerald-500">
+                          <ThumbsUp className="mr-1 h-3 w-3" />
+                          Up
+                        </Badge>
+                      ) : (
+                        <Badge className="bg-rose-500 text-white hover:bg-rose-500">
+                          <ThumbsDown className="mr-1 h-3 w-3" />
+                          Down
+                        </Badge>
+                      )}
+                    </TableCell>
+                    <TableCell className="font-mono text-xs">
+                      {f.prompt_key
+                        ? `${f.prompt_key} v${f.prompt_version ?? "?"}`
+                        : "—"}
+                    </TableCell>
+                    <TableCell className="max-w-md text-sm">
+                      {f.comment || <span className="text-muted-foreground">—</span>}
+                    </TableCell>
+                    <TableCell>
+                      <Badge
+                        variant="outline"
+                        className={STATUS_COLORS[f.status]}
+                      >
+                        {f.status}
+                      </Badge>
+                    </TableCell>
+                    <TableCell className="text-right">
+                      {f.status === "open" ? (
+                        <Button
+                          size="sm"
+                          variant="outline"
+                          onClick={() => setSelected(f)}
+                        >
+                          Resolve
+                        </Button>
+                      ) : (
+                        <span className="text-muted-foreground text-xs">
+                          {f.resolution_notes || "—"}
+                        </span>
+                      )}
+                    </TableCell>
+                  </TableRow>
+                ))}
+              </TableBody>
+            </Table>
+          )}
+        </CardContent>
+      </Card>
+
+      <ResolveDialog feedback={selected} onClose={() => setSelected(null)} />
+    </div>
+  );
+}