Init monorepo: Frontend + Backend

2025-11-20 06:59:26 +09:00
commit 3fa73b869b
35 changed files with 7898 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,15 @@
+# --- Глобальные игноры ---
+node_modules/
+.DS_Store
+*.log
+
+# --- Frontend ---
+survey-app/dist/
+survey-app/node_modules/
+survey-app/.env
+survey-app/.env.local
+
+# --- Backend ---
+survey-backend/dist/
+survey-backend/node_modules/
+survey-backend/.env
--- a/survey-app/.gitignore
+++ b/survey-app/.gitignore
@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
--- a/survey-app/README.md
+++ b/survey-app/README.md
@@ -0,0 +1,16 @@
+# React + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) (or [oxc](https://oxc.rs) when used in [rolldown-vite](https://vite.dev/guide/rolldown)) for Fast Refresh
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
+
+## React Compiler
+
+The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend using TypeScript with type-aware lint rules enabled. Check out the [TS template](https://github.com/vitejs/vite/tree/main/packages/create-vite/template-react-ts) for information on how to integrate TypeScript and [`typescript-eslint`](https://typescript-eslint.io) in your project.
--- a/survey-app/eslint.config.js
+++ b/survey-app/eslint.config.js
@@ -0,0 +1,29 @@
+import js from '@eslint/js'
+import globals from 'globals'
+import reactHooks from 'eslint-plugin-react-hooks'
+import reactRefresh from 'eslint-plugin-react-refresh'
+import { defineConfig, globalIgnores } from 'eslint/config'
+
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{js,jsx}'],
+    extends: [
+      js.configs.recommended,
+      reactHooks.configs.flat.recommended,
+      reactRefresh.configs.vite,
+    ],
+    languageOptions: {
+      ecmaVersion: 2020,
+      globals: globals.browser,
+      parserOptions: {
+        ecmaVersion: 'latest',
+        ecmaFeatures: { jsx: true },
+        sourceType: 'module',
+      },
+    },
+    rules: {
+      'no-unused-vars': ['error', { varsIgnorePattern: '^[A-Z_]' }],
+    },
+  },
+])
--- a/survey-app/index.html
+++ b/survey-app/index.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>survey-app</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>
--- a/survey-app/package-lock.json
+++ b/survey-app/package-lock.json
--- a/survey-app/package.json
+++ b/survey-app/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "survey-app",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@dnd-kit/core": "^6.3.1",
+    "@dnd-kit/sortable": "^10.0.0",
+    "@dnd-kit/utilities": "^3.2.2",
+    "clsx": "^2.1.1",
+    "lucide-react": "^0.554.0",
+    "react": "^19.2.0",
+    "react-dom": "^19.2.0",
+    "react-router-dom": "^7.9.6",
+    "tailwind-merge": "^3.4.0"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.39.1",
+    "@tailwindcss/postcss": "^4.1.17",
+    "@types/react": "^19.2.2",
+    "@types/react-dom": "^19.2.2",
+    "@vitejs/plugin-react": "^5.1.0",
+    "autoprefixer": "^10.4.22",
+    "eslint": "^9.39.1",
+    "eslint-plugin-react-hooks": "^7.0.1",
+    "eslint-plugin-react-refresh": "^0.4.24",
+    "globals": "^16.5.0",
+    "postcss": "^8.5.6",
+    "tailwindcss": "^4.1.17",
+    "vite": "^7.2.2"
+  }
+}
--- a/survey-app/postcss.config.js
+++ b/survey-app/postcss.config.js
@@ -0,0 +1,6 @@
+export default {
+  plugins: {
+    '@tailwindcss/postcss': {},
+    autoprefixer: {},
+  },
+}
--- a/survey-app/public/vite.svg
+++ b/survey-app/public/vite.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
--- a/survey-app/src/App.css
+++ b/survey-app/src/App.css
@@ -0,0 +1,42 @@
+#root {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+.logo {
+  height: 6em;
+  padding: 1.5em;
+  will-change: filter;
+  transition: filter 300ms;
+}
+.logo:hover {
+  filter: drop-shadow(0 0 2em #646cffaa);
+}
+.logo.react:hover {
+  filter: drop-shadow(0 0 2em #61dafbaa);
+}
+
+@keyframes logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  a:nth-of-type(2) .logo {
+    animation: logo-spin infinite 20s linear;
+  }
+}
+
+.card {
+  padding: 2em;
+}
+
+.read-the-docs {
+  color: #888;
+}
--- a/survey-app/src/App.jsx
+++ b/survey-app/src/App.jsx
@@ -0,0 +1,39 @@
+import React from 'react';
+import { BrowserRouter, Routes, Route, Navigate } from 'react-router-dom';
+import { AuthProvider, useAuth } from './context/AuthContext';
+import { ToastProvider } from './context/ToastContext'; // <--- ИМПОРТ
+
+import Login from './pages/Login';
+import Dashboard from './pages/Dashboard';
+import Builder from './pages/Builder';
+import Runner from './pages/Runner';
+import Results from './pages/Results';
+
+const ProtectedRoute = ({ children }) => {
+  const { user, loading } = useAuth();
+  if (loading) return <div className="h-screen flex items-center justify-center text-gray-500">Загрузка...</div>;
+  if (!user) return <Navigate to="/login" />;
+  return children;
+};
+
+export default function App() {
+  return (
+    <ToastProvider> {/* <--- ОБЕРТКА ЗДЕСЬ */}
+      <AuthProvider>
+        <BrowserRouter>
+          <Routes>
+            <Route path="/login" element={<Login />} />
+            
+            <Route path="/" element={<ProtectedRoute><Dashboard /></ProtectedRoute>} />
+            <Route path="/create" element={<ProtectedRoute><Builder /></ProtectedRoute>} />
+            <Route path="/edit/:id" element={<ProtectedRoute><Builder /></ProtectedRoute>} />
+            <Route path="/survey/:id" element={<ProtectedRoute><Runner /></ProtectedRoute>} />
+            <Route path="/results/:id" element={<ProtectedRoute><Results /></ProtectedRoute>} />
+            
+            <Route path="*" element={<Navigate to="/" />} />
+          </Routes>
+        </BrowserRouter>
+      </AuthProvider>
+    </ToastProvider>
+  );
+}
--- a/survey-app/src/assets/react.svg
+++ b/survey-app/src/assets/react.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
--- a/survey-app/src/components/ConfirmModal.jsx
+++ b/survey-app/src/components/ConfirmModal.jsx
@@ -0,0 +1,34 @@
+import React from 'react';
+import { Button } from './ui'; // Импортируем твою кнопку
+import { AlertTriangle } from 'lucide-react';
+
+export const ConfirmModal = ({ isOpen, onClose, onConfirm, title, message, isDangerous = false }) => {
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm p-4 animate-in fade-in duration-200">
+      <div className="bg-white rounded-xl shadow-xl max-w-md w-full p-6 animate-in zoom-in-95 duration-200">
+        <div className="flex gap-4">
+          <div className={`w-12 h-12 rounded-full flex items-center justify-center flex-shrink-0 ${isDangerous ? 'bg-red-100 text-red-600' : 'bg-indigo-100 text-indigo-600'}`}>
+            <AlertTriangle size={24} />
+          </div>
+          <div>
+            <h3 className="text-lg font-bold text-gray-900">{title}</h3>
+            <p className="text-gray-500 text-sm mt-1">{message}</p>
+          </div>
+        </div>
+
+        <div className="flex justify-end gap-3 mt-6">
+          <Button variant="outline" onClick={onClose}>Отмена</Button>
+          <Button 
+            variant={isDangerous ? 'destructive' : 'primary'} 
+            onClick={() => { onConfirm(); onClose(); }}
+            className={isDangerous ? 'bg-red-600 hover:bg-red-700 text-white' : ''}
+          >
+            Подтвердить
+          </Button>
+        </div>
+      </div>
+    </div>
+  );
+};
--- a/survey-app/src/components/ui.jsx
+++ b/survey-app/src/components/ui.jsx
@@ -0,0 +1,44 @@
+import React from 'react';
+import { Loader2 } from 'lucide-react';
+import { cn } from '../lib/utils';
+
+export const Button = ({ children, variant = 'primary', className, isLoading, type = "button", ...props }) => {
+  const styles = {
+    primary: "bg-indigo-600 text-white hover:bg-indigo-700 shadow-sm",
+    outline: "border border-gray-200 bg-white hover:bg-gray-100 text-gray-900 shadow-sm",
+    ghost: "hover:bg-gray-100 text-gray-700",
+    destructive: "bg-red-50 text-red-600 hover:bg-red-100",
+  };
+  
+  return (
+    <button 
+      type={type}
+      className={cn(
+        "inline-flex items-center justify-center rounded-md text-sm font-medium h-10 px-4 py-2 transition-colors disabled:opacity-50 disabled:cursor-not-allowed",
+        styles[variant], 
+        className
+      )} 
+      disabled={isLoading} 
+      {...props}
+    >
+      {isLoading && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
+      {children}
+    </button>
+  );
+};
+
+export const Input = ({ className, ...props }) => (
+  <input 
+    className={cn(
+      "flex h-10 w-full rounded-md border border-gray-200 bg-white px-3 py-2 text-sm focus:ring-2 focus:ring-indigo-500 focus:outline-none", 
+      className
+    )} 
+    {...props} 
+  />
+);
+
+export const Card = ({ children, className }) => (
+  <div className={cn("rounded-xl border border-gray-200 bg-white text-gray-950 shadow-sm", className)}>
+    {children}
+  </div>
+);
--- a/survey-app/src/context/AuthContext.jsx
+++ b/survey-app/src/context/AuthContext.jsx
@@ -0,0 +1,51 @@
+import React, { createContext, useContext, useState, useEffect } from 'react';
+import { api } from '../lib/api';
+
+// 1. Создаем контекст с пустым объектом, чтобы не было null error
+const AuthContext = createContext({});
+
+export const AuthProvider = ({ children }) => {
+  const [user, setUser] = useState(null);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    // 2. Вся логика внутри асинхронной функции, чтобы избежать синхронных сбоев
+    const initAuth = async () => {
+      const token = localStorage.getItem('token');
+      if (!token) {
+        setLoading(false);
+        return;
+      }
+      
+      try {
+        const userData = await api('/auth/me');
+        setUser(userData);
+      } catch (error) {
+        console.error("Auth failed", error);
+        localStorage.removeItem('token');
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    initAuth();
+  }, []);
+
+  const login = (token, userData) => {
+    localStorage.setItem('token', token);
+    setUser(userData);
+  };
+
+  const logout = () => {
+    localStorage.removeItem('token');
+    setUser(null);
+  };
+
+  return (
+    <AuthContext.Provider value={{ user, login, logout, loading }}>
+      {children}
+    </AuthContext.Provider>
+  );
+};
+
+export const useAuth = () => useContext(AuthContext);
--- a/survey-app/src/context/ToastContext.jsx
+++ b/survey-app/src/context/ToastContext.jsx
@@ -0,0 +1,68 @@
+import React, { createContext, useContext, useState, useCallback } from 'react';
+import { X, CheckCircle, AlertCircle, Info } from 'lucide-react';
+
+const ToastContext = createContext();
+
+export const useToast = () => useContext(ToastContext);
+
+export const ToastProvider = ({ children }) => {
+  const [toasts, setToasts] = useState([]);
+
+  // Добавить уведомление
+  const addToast = useCallback((message, type = 'info') => {
+    const id = Date.now();
+    setToasts((prev) => [...prev, { id, message, type }]);
+    // Авто-удаление через 3 секунды
+    setTimeout(() => removeToast(id), 3000);
+  }, []);
+
+  // Удалить уведомление
+  const removeToast = useCallback((id) => {
+    setToasts((prev) => prev.filter((toast) => toast.id !== id));
+  }, []);
+
+  // Хелперы
+  const toast = {
+    success: (msg) => addToast(msg, 'success'),
+    error: (msg) => addToast(msg, 'error'),
+    info: (msg) => addToast(msg, 'info'),
+  };
+
+  return (
+    <ToastContext.Provider value={toast}>
+      {children}
+      {/* Контейнер для уведомлений */}
+      <div className="fixed bottom-4 right-4 z-50 flex flex-col gap-2 pointer-events-none">
+        {toasts.map((t) => (
+          <div 
+            key={t.id} 
+            className={`
+              pointer-events-auto flex items-center gap-3 px-4 py-3 rounded-lg shadow-lg border min-w-[300px] animate-in slide-in-from-right-full duration-300
+              ${t.type === 'success' ? 'bg-white border-green-200 text-gray-800' : ''}
+              ${t.type === 'error' ? 'bg-white border-red-200 text-gray-800' : ''}
+              ${t.type === 'info' ? 'bg-white border-indigo-200 text-gray-800' : ''}
+            `}
+          >
+            {/* Иконка */}
+            <div className={`
+              p-1 rounded-full 
+              ${t.type === 'success' ? 'bg-green-100 text-green-600' : ''}
+              ${t.type === 'error' ? 'bg-red-100 text-red-600' : ''}
+              ${t.type === 'info' ? 'bg-indigo-100 text-indigo-600' : ''}
+            `}>
+              {t.type === 'success' && <CheckCircle size={16} />}
+              {t.type === 'error' && <AlertCircle size={16} />}
+              {t.type === 'info' && <Info size={16} />}
+            </div>
+            
+            <p className="text-sm font-medium flex-1">{t.message}</p>
+            
+            <button onClick={() => removeToast(t.id)} className="text-gray-400 hover:text-gray-600">
+              <X size={16} />
+            </button>
+          </div>
+        ))}
+      </div>
+    </ToastContext.Provider>
+  );
+};
--- a/survey-app/src/index.css
+++ b/survey-app/src/index.css
@@ -0,0 +1 @@
+@import "tailwindcss";
--- a/survey-app/src/lib/api.js
+++ b/survey-app/src/lib/api.js
@@ -0,0 +1,26 @@
+export const API_URL = 'http://localhost:5000/api';
+
+export const api = async (endpoint, method = 'GET', body = null) => {
+  const token = localStorage.getItem('token');
+  const headers = { 'Content-Type': 'application/json' };
+  
+  if (token) headers['Authorization'] = `Bearer ${token}`;
+  
+  // Мы просто выполняем запрос. Если он упадет (например, нет сети),
+  // ошибка сама полетит вверх к Login.jsx, где мы её и поймаем.
+  const res = await fetch(`${API_URL}${endpoint}`, {
+    method,
+    headers,
+    body: body ? JSON.stringify(body) : null
+  });
+  
+  const contentType = res.headers.get("content-type");
+  if (!contentType || !contentType.includes("application/json")) {
+    throw new Error("Ошибка сервера: получен не JSON ответ. Проверьте консоль бэкенда.");
+  }
+
+  const data = await res.json();
+  if (!res.ok) throw new Error(data.error || 'Ошибка запроса');
+  
+  return data;
+};
--- a/survey-app/src/lib/utils.js
+++ b/survey-app/src/lib/utils.js
@@ -0,0 +1,6 @@
+import { clsx } from 'clsx';
+import { twMerge } from 'tailwind-merge';
+
+export function cn(...inputs) {
+  return twMerge(clsx(inputs));
+}
--- a/survey-app/src/main.jsx
+++ b/survey-app/src/main.jsx
@@ -0,0 +1,10 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import './index.css'
+import App from './App.jsx'
+
+createRoot(document.getElementById('root')).render(
+  <StrictMode>
+    <App />
+  </StrictMode>,
+)
--- a/survey-app/src/pages/Builder.jsx
+++ b/survey-app/src/pages/Builder.jsx
@@ -0,0 +1,340 @@
+import React, { useState, useEffect, useRef, useMemo } from 'react';
+import { useNavigate, useParams } from 'react-router-dom';
+import { api } from '../lib/api';
+import { useToast } from '../context/ToastContext';
+import { Button, Input, Card } from '../components/ui';
+import { 
+  ArrowLeft, Save, Plus, Trash2, Circle, Square, GripVertical, 
+  ChevronDown, Check, Trophy, Globe, Lock, Settings, FileText 
+} from 'lucide-react';
+
+import { 
+  DndContext, 
+  closestCenter, 
+  KeyboardSensor, 
+  PointerSensor, 
+  useSensor, 
+  useSensors, 
+  DragOverlay, 
+  defaultDropAnimationSideEffects 
+} from '@dnd-kit/core';
+import { 
+  arrayMove, 
+  SortableContext, 
+  sortableKeyboardCoordinates, 
+  verticalListSortingStrategy, 
+  useSortable 
+} from '@dnd-kit/sortable';
+import { CSS } from '@dnd-kit/utilities';
+
+const restrictToVerticalAxis = ({ transform }) => {
+  return {
+    ...transform,
+    x: 0,
+  };
+};
+
+const dropAnimationConfig = {
+  sideEffects: defaultDropAnimationSideEffects({
+    styles: {
+      active: {
+        opacity: '0.4',
+      },
+    },
+  }),
+};
+
+// --- 1. UI КОМПОНЕНТЫ ---
+const QuestionTypeSelect = ({ value, onChange }) => {
+  const [isOpen, setIsOpen] = useState(false);
+  const ref = useRef(null);
+  const options = [{ value: 'SINGLE', label: 'Одиночный выбор', icon: Circle }, { value: 'MULTI', label: 'Множественный выбор', icon: Square }];
+  const currentOption = options.find(o => o.value === value);
+  const CurrentIcon = currentOption?.icon || Circle;
+
+  useEffect(() => {
+    const handleClickOutside = (e) => { if (ref.current && !ref.current.contains(e.target)) setIsOpen(false); };
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, []);
+
+  return (
+    <div className="relative min-w-[220px]" ref={ref}>
+      <button type="button" onClick={() => setIsOpen(!isOpen)} className={`w-full bg-gray-50 hover:bg-gray-100 border-0 rounded-lg py-2 pl-3 pr-10 text-left text-sm font-medium transition-all flex items-center gap-2 ${isOpen ? 'ring-2 ring-indigo-100 bg-white' : ''}`}>
+        <CurrentIcon size={16} className="text-indigo-500"/>
+        <span className="block truncate text-gray-700">{currentOption?.label}</span>
+        <span className="absolute inset-y-0 right-0 flex items-center pr-2 pointer-events-none"><ChevronDown className={`h-4 w-4 text-gray-400 transition-transform ${isOpen ? 'rotate-180' : ''}`} /></span>
+      </button>
+      {isOpen && (
+        <div className="absolute z-50 mt-2 w-full overflow-hidden rounded-xl bg-white border border-gray-100 shadow-xl ring-1 ring-black ring-opacity-5 animate-in fade-in zoom-in-95 duration-200">
+          {options.map((opt) => {
+            const Icon = opt.icon;
+            return (
+              <div key={opt.value} onClick={() => { onChange(opt.value); setIsOpen(false); }} className={`relative cursor-pointer select-none py-3 pl-3 pr-4 flex items-center gap-3 transition-colors ${value === opt.value ? 'bg-indigo-50 text-indigo-900' : 'text-gray-700 hover:bg-gray-50'}`}>
+                <Icon size={16} className={value === opt.value ? 'text-indigo-600' : 'text-gray-400'}/>
+                <span className={`block truncate text-sm ${value === opt.value ? 'font-medium' : 'font-normal'}`}>{opt.label}</span>
+                {value === opt.value && <Check className="h-4 w-4 text-indigo-600 ml-auto" />}
+              </div>
+            );
+          })}
+        </div>
+      )}
+    </div>
+  );
+};
+
+// --- 2. ВИЗУАЛЬНАЯ КАРТОЧКА ---
+const QuestionCard = ({ q, index, updateQ, removeQ, addOpt, updateOpt, toggleCorrect, dragHandleProps, isOverlay }) => {
+  return (
+    <div className={`
+        mb-6 bg-white rounded-xl p-6 relative transition-all duration-200
+        ${isOverlay 
+          ? 'shadow-2xl ring-1 ring-indigo-500/50 cursor-grabbing scale-[1.02] z-50' 
+          : 'shadow-sm border border-gray-200 hover:shadow-md'
+        }
+    `}>
+       {!isOverlay && <div className="absolute top-6 bottom-6 left-0 w-1 bg-indigo-500 rounded-r-full opacity-0 group-hover:opacity-100 transition-opacity"></div>}
+
+       <div 
+         className="absolute left-4 top-6 cursor-grab active:cursor-grabbing text-gray-300 hover:text-gray-600 touch-none p-2 -ml-2 outline-none" 
+         {...dragHandleProps}
+       >
+          <GripVertical size={20} />
+       </div>
+       
+       <div className="pl-8">
+         <div className="flex flex-col sm:flex-row sm:items-center justify-between mb-5 gap-4">
+           <span className="text-xs font-bold text-gray-400 uppercase tracking-wider flex items-center gap-2 select-none">
+              Вопрос {index + 1}
+           </span>
+           
+           <div className="flex items-center gap-3 ml-auto w-full sm:w-auto">
+              <QuestionTypeSelect value={q.type || 'SINGLE'} onChange={(val) => updateQ && updateQ(index, 'type', val)} />
+              <button onClick={() => removeQ && removeQ(index)} className="w-9 h-9 flex items-center justify-center rounded-lg text-gray-400 hover:text-red-500 hover:bg-red-50 transition-all" title="Удалить вопрос">
+                <Trash2 size={18}/>
+              </button>
+           </div>
+         </div>
+         
+         <div className="mb-6">
+            <input 
+              value={q.text} 
+              onChange={e => updateQ && updateQ(index, 'text', e.target.value)} 
+              placeholder="Введите текст вопроса..." 
+              className="w-full text-lg font-medium border-b border-gray-200 pb-2 focus:border-indigo-500 focus:outline-none transition-colors bg-transparent placeholder:text-gray-400"
+            />
+         </div>
+         
+         <div className="space-y-3">
+           {q.options.map((opt, oIdx) => (
+             <div key={oIdx} className="flex items-center gap-3 group/opt">
+               <button onClick={() => toggleCorrect && toggleCorrect(index, oIdx)} className="transition-transform active:scale-95 focus:outline-none">
+                 {q.type === 'MULTI' 
+                    ? <Square size={22} className={opt.isCorrect ? "text-emerald-500 fill-emerald-50" : "text-gray-300"} />
+                    : <Circle size={22} className={opt.isCorrect ? "text-emerald-500 fill-emerald-50" : "text-gray-300"} />
+                 }
+               </button>
+               <input 
+                  value={opt.text} 
+                  onChange={e => updateOpt && updateOpt(index, oIdx, e.target.value)} 
+                  placeholder={`Вариант ${oIdx + 1}`} 
+                  className={`flex-1 h-10 bg-transparent border-b border-transparent hover:border-gray-200 focus:border-indigo-500 focus:outline-none transition-colors text-sm ${opt.isCorrect ? 'text-emerald-700 font-medium' : 'text-gray-700'}`}
+               />
+               {q.options.length > 1 && (
+                  <button onClick={() => {
+                      if(!updateQ) return;
+                      const n = [...q.options];
+                      n.splice(oIdx, 1);
+                      updateQ(index, 'options', n);
+                    }} className="opacity-0 group-hover/opt:opacity-100 text-gray-300 hover:text-red-400 transition-all">
+                    <Trash2 size={14}/>
+                  </button>
+               )}
+             </div>
+           ))}
+           <button onClick={() => addOpt && addOpt(index)} className="flex items-center gap-2 text-sm font-medium text-indigo-600 hover:text-indigo-700 mt-2 pl-1 py-1 rounded hover:bg-indigo-50 w-fit transition-colors">
+              <Plus size={16}/> Добавить вариант
+           </button>
+         </div>
+       </div>
+    </div>
+  );
+};
+
+// --- 3. SORTABLE WRAPPER ---
+const SortableItem = ({ id, ...props }) => {
+  const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({ id });
+  
+  const style = {
+    transform: CSS.Translate.toString(transform),
+    transition,
+    // ВОТ ОН: Возвращаем "Призрака" (полупрозрачный оригинал)
+    opacity: isDragging ? 0.4 : 1, 
+  };
+
+  return (
+    <div ref={setNodeRef} style={style} className="relative group">
+      <QuestionCard {...props} dragHandleProps={{ ...attributes, ...listeners }} />
+    </div>
+  );
+};
+
+// --- MAIN ---
+export default function Builder() {
+  const navigate = useNavigate();
+  const toast = useToast();
+  const { id } = useParams(); 
+  const isEditMode = Boolean(id);
+  const [activeId, setActiveId] = useState(null);
+
+  const [title, setTitle] = useState('Новый опрос');
+  const [accessType, setAccessType] = useState('PUBLIC');
+  const [allowedCodes, setAllowedCodes] = useState('');
+  const [loading, setLoading] = useState(false);
+  const [questions, setQuestions] = useState([
+    { id: 'q-1', text: '', type: 'SINGLE', options: [{ text: '', isCorrect: true }] }
+  ]);
+
+  const totalMaxScore = useMemo(() => questions.reduce((t, q) => t + q.options.filter(o => o.isCorrect).length, 0), [questions]);
+
+  useEffect(() => {
+    if (isEditMode) {
+      setLoading(true);
+      api(`/surveys/${id}?mode=edit`)
+        .then(data => {
+          setTitle(data.title);
+          setAccessType(data.accessType);
+          setAllowedCodes(data.allowedUsers.map(u => u.user.inviteCode).join(', '));
+          setQuestions(data.questions.map(q => ({ ...q, id: String(q.id), type: q.type || 'SINGLE' })));
+        })
+        .catch(() => toast.error("Ошибка загрузки"))
+        .finally(() => setLoading(false));
+    }
+  }, [id, isEditMode]);
+
+  const sensors = useSensors(
+    useSensor(PointerSensor, { activationConstraint: { distance: 5 } }),
+    useSensor(KeyboardSensor, { coordinateGetter: sortableKeyboardCoordinates })
+  );
+  
+  const handleDragStart = (event) => setActiveId(event.active.id);
+  const handleDragCancel = () => setActiveId(null);
+  const handleDragEnd = (event) => {
+    const { active, over } = event;
+    if (over && active.id !== over.id) {
+      setQuestions((items) => {
+        const oldIndex = items.findIndex((i) => i.id === active.id);
+        const newIndex = items.findIndex((i) => i.id === over.id);
+        return arrayMove(items, oldIndex, newIndex);
+      });
+    }
+    setActiveId(null);
+  };
+
+  const updateQ = (i, f, v) => { const n = [...questions]; n[i][f] = v; setQuestions(n); };
+  const addOpt = (qi) => { const n = [...questions]; n[qi].options.push({ text: '', isCorrect: false }); setQuestions(n); };
+  const updateOpt = (qi, oi, v) => { const n = [...questions]; n[qi].options[oi].text = v; setQuestions(n); };
+  const toggleCorrect = (qi, oi) => { 
+    const n = [...questions]; 
+    if (n[qi].type === 'MULTI') n[qi].options[oi].isCorrect = !n[qi].options[oi].isCorrect;
+    else n[qi].options.forEach((o, k) => o.isCorrect = k === oi); 
+    setQuestions(n); 
+  };
+  
+  const addQuestion = () => {
+    const newId = `q-${Date.now()}`;
+    setQuestions([...questions, { id: newId, text: '', type: 'SINGLE', options: [{ text: '', isCorrect: true }] }]);
+  };
+
+  const save = async () => {
+    if (!title.trim()) return toast.error("Введите название опроса");
+    if (questions.some(q => !q.text.trim())) return toast.error("Заполните текст всех вопросов");
+    setLoading(true);
+    try {
+      const cleanQuestions = questions.map(({ id, ...rest }) => rest); 
+      const cleanCodes = allowedCodes.split(',').map(s => s.trim().toUpperCase()).filter(Boolean);
+      const payload = { title, accessType, allowedUserCodes: cleanCodes, questions: cleanQuestions };
+      if (isEditMode) await api(`/surveys/${id}`, 'PUT', payload);
+      else await api('/surveys', 'POST', payload);
+      toast.success(isEditMode ? "Опрос обновлен" : "Опрос опубликован!");
+      navigate('/');
+    } catch (e) { toast.error(e.message); } finally { setLoading(false); }
+  };
+
+  const activeQuestion = useMemo(() => questions.find(q => q.id === activeId), [activeId, questions]);
+  const activeIndex = useMemo(() => questions.findIndex(q => q.id === activeId), [activeId, questions]);
+
+  return (
+    <div className="min-h-screen bg-[#F3F4F6] pb-32">
+      <header className="bg-white border-b border-gray-200 sticky top-0 z-20 px-6 h-16 flex items-center justify-between shadow-sm">
+        <div className="flex items-center gap-4 flex-1">
+           <Button variant="ghost" onClick={() => navigate('/')} className="text-gray-500 hover:text-gray-900"><ArrowLeft size={20}/></Button>
+           <div className="flex items-center gap-2 w-full max-w-md">
+             <FileText size={18} className="text-indigo-500 shrink-0"/>
+             <input value={title} onChange={e => setTitle(e.target.value)} className="font-bold text-lg text-gray-900 bg-transparent border-b border-transparent hover:border-gray-300 focus:border-indigo-500 focus:outline-none px-1 py-0.5 w-full transition-all" placeholder="Название опроса"/>
+           </div>
+        </div>
+        <div className="flex items-center gap-3">
+           <div className="hidden md:flex items-center gap-2 text-xs font-bold uppercase tracking-wide text-indigo-600 bg-indigo-50 px-3 py-1.5 rounded-full border border-indigo-100 mr-2">
+              <Trophy size={14} /><span>Баллы: {totalMaxScore}</span>
+           </div>
+           <Button onClick={save} isLoading={loading} className="bg-indigo-600 hover:bg-indigo-700 shadow-md shadow-indigo-200"><Save size={18} className="mr-2"/> {isEditMode ? 'Сохранить' : 'Опубликовать'}</Button>
+        </div>
+      </header>
+
+      <div className="max-w-6xl mx-auto p-6 mt-4 grid grid-cols-1 lg:grid-cols-[1fr_320px] gap-8 items-start">
+        <div className="space-y-6">
+          <DndContext 
+            sensors={sensors} 
+            collisionDetection={closestCenter} 
+            onDragStart={handleDragStart}
+            onDragEnd={handleDragEnd}
+            onDragCancel={handleDragCancel}
+            modifiers={[restrictToVerticalAxis]} 
+          >
+            <SortableContext items={questions} strategy={verticalListSortingStrategy}>
+              {questions.map((q, i) => (
+                <SortableItem 
+                   key={q.id} id={q.id} q={q} index={i} 
+                   updateQ={updateQ} removeQ={(idx) => setQuestions(questions.filter((_, x) => x !== idx))}
+                   addOpt={addOpt} updateOpt={updateOpt} toggleCorrect={toggleCorrect}
+                />
+              ))}
+            </SortableContext>
+            
+            <DragOverlay dropAnimation={dropAnimationConfig}>
+               {activeId ? <QuestionCard q={activeQuestion} index={activeIndex} isOverlay={true} /> : null}
+            </DragOverlay>
+          </DndContext>
+          
+          <button onClick={addQuestion} className="w-full py-6 border-2 border-dashed border-gray-300 rounded-xl flex flex-col items-center justify-center text-gray-400 hover:border-indigo-400 hover:text-indigo-600 hover:bg-indigo-50/50 transition-all duration-200 group">
+            <div className="w-10 h-10 rounded-full bg-white border border-gray-200 flex items-center justify-center mb-2 shadow-sm group-hover:scale-110 transition-transform"><Plus size={20} /></div>
+            <span className="font-medium">Добавить вопрос</span>
+          </button>
+        </div>
+
+        <div className="lg:sticky lg:top-24 space-y-6">
+           <div className="bg-white p-5 rounded-xl border border-gray-200 shadow-sm">
+              <div className="flex items-center gap-2 mb-4 text-gray-900 font-bold"><Settings size={18} className="text-gray-400"/><h3>Параметры доступа</h3></div>
+              <div className="space-y-3">
+                <div onClick={() => setAccessType('PUBLIC')} className={`cursor-pointer p-3 rounded-lg border-2 transition-all flex items-start gap-3 ${accessType === 'PUBLIC' ? 'border-emerald-500 bg-emerald-50/30' : 'border-gray-100 hover:border-gray-200'}`}>
+                  <div className={`mt-0.5 w-5 h-5 rounded-full border flex items-center justify-center ${accessType === 'PUBLIC' ? 'border-emerald-500 bg-emerald-500 text-white' : 'border-gray-300'}`}>{accessType === 'PUBLIC' && <Check size={12}/>}</div>
+                  <div><div className="text-sm font-bold text-gray-900 flex items-center gap-2"><Globe size={14}/> Публичный</div><div className="text-xs text-gray-500 mt-0.5">Доступен всем</div></div>
+                </div>
+                <div onClick={() => setAccessType('INVITE_ONLY')} className={`cursor-pointer p-3 rounded-lg border-2 transition-all flex items-start gap-3 ${accessType === 'INVITE_ONLY' ? 'border-indigo-500 bg-indigo-50/30' : 'border-gray-100 hover:border-gray-200'}`}>
+                  <div className={`mt-0.5 w-5 h-5 rounded-full border flex items-center justify-center ${accessType === 'INVITE_ONLY' ? 'border-indigo-500 bg-indigo-500 text-white' : 'border-gray-300'}`}>{accessType === 'INVITE_ONLY' && <Check size={12}/>}</div>
+                  <div><div className="text-sm font-bold text-gray-900 flex items-center gap-2"><Lock size={14}/> По приглашению</div><div className="text-xs text-gray-500 mt-0.5">Только по кодам</div></div>
+                </div>
+              </div>
+              {accessType === 'INVITE_ONLY' && (
+                <div className="mt-4 pt-4 border-t border-gray-100 animate-in slide-in-from-top-2 fade-in duration-200">
+                   <label className="text-xs font-bold text-gray-500 uppercase mb-2 block">Коды доступа</label>
+                   <textarea placeholder="#USER-1234, #USER-5678" value={allowedCodes} onChange={e => setAllowedCodes(e.target.value)} className="w-full text-sm p-3 rounded-lg border border-gray-200 focus:border-indigo-500 focus:ring-2 focus:ring-indigo-200 outline-none min-h-[80px] resize-y font-mono bg-gray-50"/>
+                </div>
+              )}
+           </div>
+        </div>
+      </div>
+    </div>
+  );
+}
--- a/survey-app/src/pages/Dashboard.jsx
+++ b/survey-app/src/pages/Dashboard.jsx
@@ -0,0 +1,247 @@
+import React, { useEffect, useState, useMemo } from 'react';
+import { Link } from 'react-router-dom';
+import { useAuth } from '../context/AuthContext';
+import { useToast } from '../context/ToastContext';
+import { ConfirmModal } from '../components/ConfirmModal';
+import { api } from '../lib/api';
+import { Button, Card } from '../components/ui';
+import { 
+  Plus, Trash2, BarChart3, Play, LogOut, Share2, Copy, 
+  Globe, Lock, Edit, LayoutGrid, List, Users, CheckCircle2 
+} from 'lucide-react';
+
+export default function Dashboard() {
+  const { user, logout } = useAuth();
+  const toast = useToast();
+  
+  const [activeTab, setActiveTab] = useState('my'); 
+  const [mySurveys, setMySurveys] = useState([]);
+  const [feedSurveys, setFeedSurveys] = useState([]);
+  const [deleteId, setDeleteId] = useState(null);
+
+  const loadMy = () => api('/surveys/my').then(setMySurveys);
+  const loadFeed = () => api('/surveys/feed').then(setFeedSurveys);
+
+  useEffect(() => {
+    loadMy();
+    loadFeed();
+  }, []);
+
+  // --- СТАТИСТИКА (Вычисляем на лету) ---
+  const stats = useMemo(() => {
+    const totalSurveys = mySurveys.length;
+    const totalResponses = mySurveys.reduce((acc, s) => acc + (s._count?.submissions || 0), 0);
+    return { totalSurveys, totalResponses };
+  }, [mySurveys]);
+  // --------------------------------------
+
+  const confirmDelete = async () => {
+    try {
+      await api(`/surveys/${deleteId}`, 'DELETE');
+      toast.success('Опрос удален');
+      loadMy();
+      loadFeed();
+    } catch (e) {
+      toast.error('Ошибка удаления');
+    }
+  };
+
+  const copyLink = (id) => {
+    const link = `${window.location.origin}/survey/${id}`;
+    navigator.clipboard.writeText(link);
+    toast.info('Ссылка скопирована');
+  };
+
+  const copyCode = () => {
+    navigator.clipboard.writeText(user.inviteCode);
+    toast.info('Код приглашения скопирован');
+  };
+
+  // --- НОВЫЙ КОМПОНЕНТ КАРТОЧКИ ---
+  const SurveyCard = ({ s, isMy }) => (
+    <div className="bg-white rounded-xl border border-gray-200 shadow-sm hover:shadow-lg transition-all duration-300 flex flex-col overflow-hidden group">
+      {/* Тело карточки */}
+      <div className="p-6 flex-1">
+        <div className="flex justify-between items-start mb-4">
+          {s.accessType === 'PUBLIC' 
+            ? <span className="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-emerald-100 text-emerald-800 border border-emerald-200"><Globe size={12} className="mr-1"/> Публичный</span>
+            : <span className="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-indigo-100 text-indigo-800 border border-indigo-200"><Lock size={12} className="mr-1"/> Приватный</span>
+          }
+          
+          {isMy && (
+            <button onClick={() => setDeleteId(s.id)} className="text-gray-300 hover:text-red-500 transition-colors opacity-0 group-hover:opacity-100">
+              <Trash2 size={18} />
+            </button>
+          )}
+        </div>
+
+        <h3 className="text-xl font-bold text-gray-900 mb-2 line-clamp-2">{s.title}</h3>
+        
+        <div className="flex items-center text-sm text-gray-500 gap-4">
+           <div className="flex items-center gap-1">
+              <Users size={14}/>
+              <span>{isMy ? s._count?.submissions : 'Автор: ' + (s.author?.name || 'Unknown')}</span>
+           </div>
+           <div className="text-xs text-gray-400">
+              {new Date(s.createdAt || Date.now()).toLocaleDateString()}
+           </div>
+        </div>
+      </div>
+
+      {/* Подвал карточки (Footer) - Серый фон */}
+      <div className="bg-gray-50 px-6 py-4 border-t border-gray-100 flex items-center gap-3">
+        <Link to={`/survey/${s.id}`} className="flex-1">
+           <Button variant="primary" className="w-full h-9 text-xs shadow-none bg-indigo-600 hover:bg-indigo-700">
+             <Play size={14} className="mr-2 fill-current"/> Пройти
+           </Button>
+        </Link>
+
+        {isMy ? (
+          <>
+            <Link to={`/edit/${s.id}`}>
+               <button className="h-9 w-9 flex items-center justify-center rounded-md border border-gray-200 bg-white text-gray-600 hover:bg-gray-50 hover:text-indigo-600 transition-colors" title="Редактировать">
+                  <Edit size={16}/>
+               </button>
+            </Link>
+            <Link to={`/results/${s.id}`}>
+               <button className="h-9 w-9 flex items-center justify-center rounded-md border border-gray-200 bg-white text-gray-600 hover:bg-gray-50 hover:text-indigo-600 transition-colors" title="Результаты">
+                  <BarChart3 size={16}/>
+               </button>
+            </Link>
+          </>
+        ) : null}
+
+        {s.accessType === 'PUBLIC' && (
+           <button onClick={() => copyLink(s.id)} className="h-9 w-9 flex items-center justify-center rounded-md border border-gray-200 bg-white text-gray-600 hover:bg-gray-50 hover:text-indigo-600 transition-colors" title="Поделиться">
+              <Share2 size={16}/>
+           </button>
+        )}
+      </div>
+    </div>
+  );
+
+  return (
+    <div className="min-h-screen bg-gray-50/50 pb-20">
+      <ConfirmModal 
+        isOpen={!!deleteId} 
+        onClose={() => setDeleteId(null)}
+        onConfirm={confirmDelete}
+        title="Удалить опрос?"
+        message="Это действие нельзя отменить."
+        isDangerous={true}
+      />
+
+      {/* --- 1. HERO HEADER (Градиент) --- */}
+      <div className="bg-gradient-to-r from-indigo-900 via-indigo-800 to-violet-900 text-white pt-10 pb-24 px-6">
+        <div className="max-w-6xl mx-auto">
+           <div className="flex justify-between items-center mb-8">
+              <div className="flex items-center gap-3">
+                 <div className="w-10 h-10 bg-white/10 rounded-xl flex items-center justify-center backdrop-blur-sm border border-white/20">
+                    <LayoutGrid className="text-white" size={20}/>
+                 </div>
+                 <h1 className="text-2xl font-bold">Survey App</h1>
+              </div>
+              <Button variant="ghost" onClick={logout} className="text-white hover:bg-white/10 hover:text-white border border-white/20">
+                 <LogOut size={16} className="mr-2"/> Выход
+              </Button>
+           </div>
+
+           <div className="flex flex-col md:flex-row justify-between items-end gap-6">
+              <div>
+                 <h2 className="text-3xl font-bold mb-2">Привет, {user?.name || 'Guest'}! 👋</h2>
+                 <p className="text-indigo-200">Вот сводка вашей активности за сегодня.</p>
+              </div>
+              <Link to="/create">
+                 <Button className="bg-white text-indigo-900 hover:bg-gray-100 border-none shadow-xl">
+                    <Plus size={18} className="mr-2"/> Создать новый опрос
+                 </Button>
+              </Link>
+           </div>
+        </div>
+      </div>
+
+      {/* --- 2. СТАТИСТИКА (Карточки поднимаются наверх) --- */}
+      <div className="max-w-6xl mx-auto px-6 -mt-12 grid grid-cols-1 md:grid-cols-3 gap-6">
+         {/* Карточка 1: Код */}
+         <div className="bg-white p-6 rounded-xl shadow-lg shadow-indigo-900/5 border border-gray-100 flex items-center justify-between">
+            <div>
+               <p className="text-gray-500 text-xs font-bold uppercase tracking-wider mb-1">Ваш код доступа</p>
+               <div className="flex items-center gap-2 cursor-pointer group" onClick={copyCode}>
+                  <code className="text-xl font-bold text-indigo-600">{user?.inviteCode}</code>
+                  <Copy size={16} className="text-gray-300 group-hover:text-indigo-500 transition-colors"/>
+               </div>
+            </div>
+            <div className="w-10 h-10 bg-indigo-50 rounded-full flex items-center justify-center text-indigo-600">
+               <Lock size={20}/>
+            </div>
+         </div>
+
+         {/* Карточка 2: Опросы */}
+         <div className="bg-white p-6 rounded-xl shadow-lg shadow-indigo-900/5 border border-gray-100 flex items-center justify-between">
+            <div>
+               <p className="text-gray-500 text-xs font-bold uppercase tracking-wider mb-1">Создано опросов</p>
+               <p className="text-2xl font-bold text-gray-900">{stats.totalSurveys}</p>
+            </div>
+            <div className="w-10 h-10 bg-emerald-50 rounded-full flex items-center justify-center text-emerald-600">
+               <List size={20}/>
+            </div>
+         </div>
+
+         {/* Карточка 3: Ответы */}
+         <div className="bg-white p-6 rounded-xl shadow-lg shadow-indigo-900/5 border border-gray-100 flex items-center justify-between">
+            <div>
+               <p className="text-gray-500 text-xs font-bold uppercase tracking-wider mb-1">Получено ответов</p>
+               <p className="text-2xl font-bold text-gray-900">{stats.totalResponses}</p>
+            </div>
+            <div className="w-10 h-10 bg-amber-50 rounded-full flex items-center justify-center text-amber-600">
+               <CheckCircle2 size={20}/>
+            </div>
+         </div>
+      </div>
+
+      {/* --- 3. КОНТЕНТ --- */}
+      <div className="max-w-6xl mx-auto px-6 mt-10">
+        {/* Табы (Pills style) */}
+        <div className="flex bg-gray-200/50 p-1 rounded-xl w-fit mb-8">
+          <button 
+            onClick={() => setActiveTab('my')}
+            className={`px-6 py-2 rounded-lg text-sm font-medium transition-all ${activeTab === 'my' ? 'bg-white text-indigo-900 shadow-sm' : 'text-gray-500 hover:text-gray-700'}`}
+          >
+            Мои опросы
+          </button>
+          <button 
+            onClick={() => setActiveTab('feed')}
+            className={`px-6 py-2 rounded-lg text-sm font-medium transition-all ${activeTab === 'feed' ? 'bg-white text-indigo-900 shadow-sm' : 'text-gray-500 hover:text-gray-700'}`}
+          >
+            Лента опросов
+          </button>
+        </div>
+
+        {/* Сетка опросов */}
+        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+          {(activeTab === 'my' ? mySurveys : feedSurveys).map(s => (
+             <SurveyCard key={s.id} s={s} isMy={activeTab === 'my'} />
+          ))}
+        </div>
+        
+        {/* Пустое состояние */}
+        {(activeTab === 'my' ? mySurveys : feedSurveys).length === 0 && (
+           <div className="text-center py-20 bg-white rounded-2xl border border-dashed border-gray-300">
+              <div className="w-16 h-16 bg-gray-50 rounded-full flex items-center justify-center mx-auto mb-4">
+                 <List className="text-gray-300" size={32}/>
+              </div>
+              <h3 className="text-lg font-medium text-gray-900">Список пуст</h3>
+              <p className="text-gray-500 max-w-xs mx-auto mt-1">
+                 {activeTab === 'my' ? 'Вы еще не создали ни одного опроса.' : 'Вам пока не доступен ни один опрос.'}
+              </p>
+              {activeTab === 'my' && (
+                 <Link to="/create">
+                    <Button variant="outline" className="mt-4">Создать первый опрос</Button>
+                 </Link>
+              )}
+           </div>
+        )}
+      </div>
+    </div>
+  );
+}
--- a/survey-app/src/pages/Login.jsx
+++ b/survey-app/src/pages/Login.jsx
@@ -0,0 +1,146 @@
+import React, { useState, useEffect } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { useAuth } from '../context/AuthContext';
+import { useToast } from '../context/ToastContext'; // Используем тосты для ошибок
+import { api } from '../lib/api';
+import { Button } from '../components/ui';
+import { LayoutGrid, Mail, Lock, User, ArrowRight, Loader2 } from 'lucide-react';
+
+export default function Login() {
+  const { login, user } = useAuth();
+  const navigate = useNavigate();
+  const toast = useToast();
+
+  const [isReg, setIsReg] = useState(false);
+  const [loading, setLoading] = useState(false);
+  const [form, setForm] = useState({ email: '', password: '', name: '' });
+
+  // Если уже вошел — редирект
+  useEffect(() => {
+    if (user) navigate('/');
+  }, [user, navigate]);
+
+  const submit = async (e) => {
+    e.preventDefault();
+    setLoading(true);
+
+    try {
+      const endpoint = isReg ? '/auth/register' : '/auth/login';
+      const res = await api(endpoint, 'POST', form);
+      
+      login(res.token, res.user);
+      toast.success(isReg ? 'Аккаунт создан! Добро пожаловать.' : 'С возвращением!');
+      navigate('/');
+    } catch (err) {
+      console.error(err);
+      toast.error(err.message || "Ошибка входа");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-gradient-to-br from-indigo-900 via-violet-900 to-purple-900 p-4">
+      
+      {/* Декоративные круги на фоне (Blur effect) */}
+      <div className="fixed top-0 left-0 w-full h-full overflow-hidden pointer-events-none">
+         <div className="absolute top-[20%] left-[20%] w-96 h-96 bg-indigo-500/20 rounded-full blur-3xl animate-pulse"></div>
+         <div className="absolute bottom-[20%] right-[20%] w-96 h-96 bg-purple-500/20 rounded-full blur-3xl animate-pulse delay-1000"></div>
+      </div>
+
+      <div className="w-full max-w-md bg-white/95 backdrop-blur-xl rounded-2xl shadow-2xl border border-white/20 overflow-hidden relative z-10 animate-in fade-in zoom-in-95 duration-300">
+        
+        {/* Верхняя часть с Логотипом */}
+        <div className="bg-gray-50/50 px-8 py-6 border-b border-gray-100 text-center">
+           <div className="w-12 h-12 bg-indigo-600 rounded-xl flex items-center justify-center mx-auto mb-4 shadow-lg shadow-indigo-500/30 text-white">
+              <LayoutGrid size={24}/>
+           </div>
+           <h2 className="text-2xl font-bold text-gray-900">
+             {isReg ? 'Создать аккаунт' : 'Добро пожаловать'}
+           </h2>
+           <p className="text-gray-500 text-sm mt-1">
+             {isReg ? 'Начните создавать опросы бесплатно' : 'Войдите, чтобы управлять опросами'}
+           </p>
+        </div>
+
+        {/* Форма */}
+        <div className="p-8">
+          <form onSubmit={submit} className="space-y-5">
+            
+            {isReg && (
+              <div className="space-y-1.5">
+                <label className="text-xs font-semibold text-gray-700 uppercase ml-1">Имя</label>
+                <div className="relative">
+                  <User className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400" size={18} />
+                  <input 
+                    className="w-full pl-10 pr-4 py-2.5 bg-gray-50 border border-gray-200 rounded-lg focus:ring-2 focus:ring-indigo-500 focus:bg-white focus:border-indigo-500 transition-all outline-none text-sm"
+                    placeholder="Иван Иванов"
+                    value={form.name}
+                    onChange={e => setForm({...form, name: e.target.value})}
+                    required 
+                  />
+                </div>
+              </div>
+            )}
+
+            <div className="space-y-1.5">
+              <label className="text-xs font-semibold text-gray-700 uppercase ml-1">Email</label>
+              <div className="relative">
+                <Mail className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400" size={18} />
+                <input 
+                  type="email"
+                  className="w-full pl-10 pr-4 py-2.5 bg-gray-50 border border-gray-200 rounded-lg focus:ring-2 focus:ring-indigo-500 focus:bg-white focus:border-indigo-500 transition-all outline-none text-sm"
+                  placeholder="name@example.com"
+                  value={form.email}
+                  onChange={e => setForm({...form, email: e.target.value})}
+                  required 
+                />
+              </div>
+            </div>
+
+            <div className="space-y-1.5">
+              <label className="text-xs font-semibold text-gray-700 uppercase ml-1">Пароль</label>
+              <div className="relative">
+                <Lock className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400" size={18} />
+                <input 
+                  type="password"
+                  className="w-full pl-10 pr-4 py-2.5 bg-gray-50 border border-gray-200 rounded-lg focus:ring-2 focus:ring-indigo-500 focus:bg-white focus:border-indigo-500 transition-all outline-none text-sm font-mono"
+                  placeholder="••••••••"
+                  value={form.password}
+                  onChange={e => setForm({...form, password: e.target.value})}
+                  required 
+                />
+              </div>
+            </div>
+            
+            <Button type="submit" className="w-full h-11 text-base mt-2 shadow-lg shadow-indigo-500/20" isLoading={loading}>
+              {isReg ? 'Зарегистрироваться' : 'Войти в систему'}
+              {!loading && <ArrowRight size={18} className="ml-2 opacity-80"/>}
+            </Button>
+          </form>
+
+          {/* Переключатель */}
+          <div className="mt-6 text-center">
+             <div className="relative">
+                <div className="absolute inset-0 flex items-center"><div className="w-full border-t border-gray-100"></div></div>
+                <div className="relative flex justify-center text-xs uppercase"><span className="bg-white px-2 text-gray-400">или</span></div>
+             </div>
+             
+             <button 
+               type="button"
+               onClick={() => { setIsReg(!isReg); setForm({ email: '', password: '', name: '' }); }} 
+               className="mt-4 text-sm font-medium text-indigo-600 hover:text-indigo-700 hover:underline transition-all"
+             >
+                {isReg ? 'У меня уже есть аккаунт' : 'Создать новый аккаунт'}
+             </button>
+          </div>
+        </div>
+      </div>
+
+      {/* Футер страницы */}
+      <div className="absolute bottom-4 text-center text-indigo-200/40 text-xs">
+        © 2025 Survey App. All rights reserved.
+      </div>
+    </div>
+  );
+}
--- a/survey-app/src/pages/Results.jsx
+++ b/survey-app/src/pages/Results.jsx
@@ -0,0 +1,205 @@
+import React, { useEffect, useState, useMemo } from 'react';
+import { useParams, Link } from 'react-router-dom';
+import { api } from '../lib/api';
+import { Button, Card } from '../components/ui';
+import { ArrowLeft, Trophy, Users, Calculator, Download, Calendar, Award } from 'lucide-react';
+
+export default function Results() {
+  const { id } = useParams();
+  const [subs, setSubs] = useState([]);
+  const [loading, setLoading] = useState(true);
+  const [title, setTitle] = useState('Результаты');
+
+  useEffect(() => {
+    const load = async () => {
+      try {
+        // Загружаем результаты
+        const data = await api(`/surveys/${id}/results`);
+        setSubs(data);
+        
+        // Загружаем название опроса (для красоты в заголовке)
+        const surveyInfo = await api(`/surveys/${id}?mode=edit`); 
+        setTitle(surveyInfo.title);
+      } catch (e) {
+        console.error(e);
+      } finally {
+        setLoading(false);
+      }
+    };
+    load();
+  }, [id]);
+
+  // --- ВЫЧИСЛЯЕМ СТАТИСТИКУ ---
+  const stats = useMemo(() => {
+    if (!subs.length) return null;
+
+    const total = subs.length;
+    // Средний балл
+    const avgScore = (subs.reduce((acc, s) => acc + s.score, 0) / total).toFixed(1);
+    // Максимально возможный балл (берем из первого результата, так как он у всех одинаковый для теста)
+    const maxPossible = subs[0].maxScore;
+    // Лучший результат среди участников
+    const bestScore = Math.max(...subs.map(s => s.score));
+
+    return { total, avgScore, maxPossible, bestScore };
+  }, [subs]);
+
+  // Хелпер для цвета бейджика с баллами
+  const getScoreColor = (score, max) => {
+    const percent = (score / max) * 100;
+    if (percent === 100) return 'bg-emerald-100 text-emerald-700 border-emerald-200';
+    if (percent >= 70) return 'bg-blue-100 text-blue-700 border-blue-200';
+    if (percent >= 40) return 'bg-amber-100 text-amber-700 border-amber-200';
+    return 'bg-red-100 text-red-700 border-red-200';
+  };
+
+  // Хелпер для аватарок (Инициалы)
+  const getInitials = (name) => {
+    return name ? name.substring(0, 2).toUpperCase() : '??';
+  };
+
+  // Заглушка для экспорта
+  const handleExport = () => {
+    alert("В реальном проекте здесь начнется скачивание .CSV файла");
+  };
+
+  if (loading) return <div className="h-screen flex items-center justify-center text-gray-500">Загрузка аналитики...</div>;
+
+  return (
+    <div className="min-h-screen bg-gray-50/50 p-6">
+      <div className="max-w-5xl mx-auto space-y-8">
+        
+        {/* ХЕДЕР */}
+        <div className="flex flex-col md:flex-row justify-between items-start md:items-center gap-4">
+          <div>
+            <Link to="/" className="inline-flex items-center text-sm text-gray-500 hover:text-indigo-600 mb-2 transition-colors">
+              <ArrowLeft size={16} className="mr-1" /> Вернуться назад
+            </Link>
+            <h1 className="text-2xl font-bold text-gray-900">{title}</h1>
+            <p className="text-gray-500 text-sm mt-1">Аналитика и список ответов</p>
+          </div>
+          <Button variant="outline" onClick={handleExport}>
+            <Download size={16} className="mr-2"/> Экспорт в CSV
+          </Button>
+        </div>
+
+        {/* КАРТОЧКИ СТАТИСТИКИ (KPI) */}
+        {stats ? (
+          <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+            {/* Карточка 1: Участники */}
+            <Card className="p-5 border-l-4 border-l-indigo-500 flex items-center justify-between">
+               <div>
+                 <p className="text-gray-500 text-xs font-bold uppercase tracking-wider">Всего участников</p>
+                 <p className="text-3xl font-bold text-gray-900 mt-1">{stats.total}</p>
+               </div>
+               <div className="w-12 h-12 bg-indigo-50 rounded-full flex items-center justify-center text-indigo-600">
+                 <Users size={24}/>
+               </div>
+            </Card>
+
+            {/* Карточка 2: Средний балл */}
+            <Card className="p-5 border-l-4 border-l-amber-500 flex items-center justify-between">
+               <div>
+                 <p className="text-gray-500 text-xs font-bold uppercase tracking-wider">Средний балл</p>
+                 <div className="flex items-baseline gap-1 mt-1">
+                    <p className="text-3xl font-bold text-gray-900">{stats.avgScore}</p>
+                    <span className="text-gray-400 text-sm">/ {stats.maxPossible}</span>
+                 </div>
+               </div>
+               <div className="w-12 h-12 bg-amber-50 rounded-full flex items-center justify-center text-amber-600">
+                 <Calculator size={24}/>
+               </div>
+            </Card>
+
+            {/* Карточка 3: Лучший результат */}
+            <Card className="p-5 border-l-4 border-l-emerald-500 flex items-center justify-between">
+               <div>
+                 <p className="text-gray-500 text-xs font-bold uppercase tracking-wider">Рекорд</p>
+                 <div className="flex items-baseline gap-1 mt-1">
+                    <p className="text-3xl font-bold text-gray-900">{stats.bestScore}</p>
+                    <span className="text-gray-400 text-sm">/ {stats.maxPossible}</span>
+                 </div>
+               </div>
+               <div className="w-12 h-12 bg-emerald-50 rounded-full flex items-center justify-center text-emerald-600">
+                 <Trophy size={24}/>
+               </div>
+            </Card>
+          </div>
+        ) : (
+          <Card className="p-8 text-center text-gray-500 border-dashed">
+            <div className="w-12 h-12 bg-gray-100 rounded-full flex items-center justify-center mx-auto mb-3">
+              <Users className="text-gray-400" />
+            </div>
+            Пока нет ответов на этот опрос.
+          </Card>
+        )}
+
+        {/* ТАБЛИЦА РЕЗУЛЬТАТОВ */}
+        {subs.length > 0 && (
+          <Card className="overflow-hidden border-gray-200 shadow-sm">
+            <div className="px-6 py-4 border-b border-gray-100 bg-gray-50/50 flex justify-between items-center">
+              <h3 className="font-bold text-gray-700">Детальный список</h3>
+            </div>
+            
+            <div className="overflow-x-auto">
+              <table className="w-full text-left text-sm">
+                <thead className="bg-gray-50 text-gray-500 border-b border-gray-100">
+                  <tr>
+                    <th className="px-6 py-3 font-medium">Участник</th>
+                    <th className="px-6 py-3 font-medium">Результат</th>
+                    <th className="px-6 py-3 font-medium">Эффективность</th>
+                    <th className="px-6 py-3 font-medium">Дата</th>
+                  </tr>
+                </thead>
+                <tbody className="divide-y divide-gray-100 bg-white">
+                  {subs.map((s, i) => (
+                    <tr key={i} className="hover:bg-gray-50/80 transition-colors">
+                      
+                      {/* Имя + Аватар */}
+                      <td className="px-6 py-4">
+                        <div className="flex items-center gap-3">
+                          <div className="w-9 h-9 rounded-full bg-gradient-to-br from-indigo-500 to-purple-600 flex items-center justify-center text-white font-bold text-xs shadow-sm">
+                            {getInitials(s.user?.name)}
+                          </div>
+                          <div>
+                            <p className="font-medium text-gray-900">{s.user?.name || 'Аноним'}</p>
+                            <p className="text-xs text-gray-500">{s.user?.email}</p>
+                          </div>
+                        </div>
+                      </td>
+
+                      {/* Баллы */}
+                      <td className="px-6 py-4">
+                        <span className="font-mono font-bold text-gray-700">{s.score}</span>
+                        <span className="text-gray-400 text-xs"> / {s.maxScore}</span>
+                      </td>
+
+                      {/* Процент успеха (Бейджик) */}
+                      <td className="px-6 py-4">
+                        <span className={`inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium border ${getScoreColor(s.score, s.maxScore)}`}>
+                           {s.score === s.maxScore && <Award size={12} className="mr-1" />}
+                           {Math.round((s.score / s.maxScore) * 100)}%
+                        </span>
+                      </td>
+
+                      {/* Дата */}
+                      <td className="px-6 py-4 text-gray-500">
+                        <div className="flex items-center gap-1.5 text-xs">
+                           <Calendar size={14}/>
+                           {new Date(s.completedAt).toLocaleDateString()} 
+                           <span className="text-gray-300">|</span>
+                           {new Date(s.completedAt).toLocaleTimeString([], {hour: '2-digit', minute:'2-digit'})}
+                        </div>
+                      </td>
+
+                    </tr>
+                  ))}
+                </tbody>
+              </table>
+            </div>
+          </Card>
+        )}
+      </div>
+    </div>
+  );
+}
--- a/survey-app/src/pages/Runner.jsx
+++ b/survey-app/src/pages/Runner.jsx
@@ -0,0 +1,211 @@
+import React, { useEffect, useState, useMemo } from 'react';
+import { useParams, useNavigate } from 'react-router-dom';
+import { api } from '../lib/api';
+import { Button, Card } from '../components/ui';
+import { ConfirmModal } from '../components/ConfirmModal';
+import { AlertTriangle, Check, ArrowLeft, Clock, User } from 'lucide-react';
+
+export default function Runner() {
+  const { id } = useParams();
+  const navigate = useNavigate();
+  const [survey, setSurvey] = useState(null);
+  const [answers, setAnswers] = useState({});
+  const [result, setResult] = useState(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+  const [showConfirm, setShowConfirm] = useState(false);
+
+  useEffect(() => { 
+    api(`/surveys/${id}`)
+      .then(setSurvey)
+      .catch(err => setError(err))
+      .finally(() => setLoading(false)); 
+  }, [id]);
+
+  // Вычисляем прогресс
+  const progress = useMemo(() => {
+    if (!survey) return 0;
+    const answeredCount = Object.keys(answers).length;
+    const totalCount = survey.questions.length;
+    return Math.round((answeredCount / totalCount) * 100);
+  }, [answers, survey]);
+
+  const handleSelect = (qId, type, optId) => {
+    setAnswers(prev => {
+       const current = prev[qId] || [];
+       const qType = type || 'SINGLE'; 
+       if (qType === 'SINGLE') return { ...prev, [qId]: [optId] };
+       else {
+          if (current.includes(optId)) return { ...prev, [qId]: current.filter(id => id !== optId) };
+          else return { ...prev, [qId]: [...current, optId] };
+       }
+    });
+  };
+
+  const handleSubmitClick = () => {
+    const unanswered = survey.questions.filter(q => !answers[q.id] || answers[q.id].length === 0);
+    if (unanswered.length > 0) setShowConfirm(true);
+    else finishSubmit();
+  };
+
+  const finishSubmit = async () => {
+    const payload = Object.entries(answers).flatMap(([qId, opts]) => opts.map(oId => ({ questionId: Number(qId), optionId: oId })));
+    try {
+        const res = await api(`/surveys/${id}/submit`, 'POST', { answers: payload });
+        setResult(res);
+    } catch(e) { console.error(e); }
+  };
+
+  if (loading) return <div className="min-h-screen flex items-center justify-center text-gray-500 bg-[#F3F4F6]">Загрузка опроса...</div>;
+
+  if (error) return (
+    <div className="min-h-screen flex items-center justify-center bg-[#F3F4F6] p-4">
+      <Card className="max-w-md w-full p-8 text-center border border-red-100 shadow-lg">
+        <div className="w-16 h-16 bg-red-50 text-red-500 rounded-full flex items-center justify-center mx-auto mb-4"><AlertTriangle size={32} /></div>
+        <h1 className="text-xl font-bold text-gray-900 mb-2">Опрос недоступен</h1>
+        <p className="text-gray-500 mb-6">Возможно, ссылка устарела или у вас нет доступа.</p>
+        <Button onClick={() => navigate('/')} className="w-full bg-white border border-gray-300 text-gray-700 hover:bg-gray-50">На главную</Button>
+      </Card>
+    </div>
+  );
+
+  if (result) return (
+    <div className="min-h-screen flex items-center justify-center bg-[#F3F4F6] p-4">
+      <Card className="p-12 text-center max-w-lg w-full animate-in fade-in zoom-in duration-300 shadow-xl border-0">
+        <div className="w-20 h-20 bg-indigo-100 text-indigo-600 rounded-full flex items-center justify-center mx-auto mb-6">
+          <TrophyIcon className="w-10 h-10" />
+        </div>
+        <h1 className="text-4xl font-bold mb-2 text-gray-900">Результат</h1>
+        <p className="text-gray-500 mb-8">Вы успешно завершили опрос</p>
+        
+        <div className="bg-gray-50 rounded-2xl p-6 mb-8 border border-gray-100">
+           <div className="text-6xl font-black text-indigo-600 tracking-tighter">{result.score} <span className="text-2xl text-gray-400 font-medium">/ {result.maxScore}</span></div>
+           <div className="text-sm text-gray-400 uppercase tracking-widest font-bold mt-2">Баллов набрано</div>
+        </div>
+
+        <Button onClick={() => navigate('/')} size="lg" className="w-full bg-indigo-600 hover:bg-indigo-700 h-12 text-lg shadow-lg shadow-indigo-200">В меню</Button>
+      </Card>
+    </div>
+  );
+
+  return (
+    <div className="min-h-screen bg-[#F3F4F6] pb-32">
+      
+      <ConfirmModal 
+        isOpen={showConfirm} onClose={() => setShowConfirm(false)} onConfirm={finishSubmit}
+        title="Завершить тест?" message="Вы ответили не на все вопросы. Вы уверены?" isDangerous={false}
+      />
+
+      {/* --- STICKY TOP BAR (PROGRESS) --- */}
+      <div className="sticky top-0 z-20 bg-white/80 backdrop-blur-md border-b border-gray-200 px-6 h-14 flex items-center justify-between">
+         <div className="flex items-center gap-4">
+            <button onClick={() => navigate('/')} className="text-gray-400 hover:text-gray-800 transition-colors"><ArrowLeft size={20}/></button>
+            <span className="font-semibold text-sm text-gray-600 hidden sm:block truncate max-w-[200px]">{survey.title}</span>
+         </div>
+         <div className="flex items-center gap-3 flex-1 max-w-xs ml-auto">
+            <span className="text-xs font-bold text-indigo-600">{progress}%</span>
+            <div className="h-2 flex-1 bg-gray-100 rounded-full overflow-hidden">
+               <div className="h-full bg-indigo-600 transition-all duration-500 ease-out" style={{ width: `${progress}%` }}></div>
+            </div>
+         </div>
+      </div>
+
+      <div className="max-w-2xl mx-auto p-6 space-y-8 mt-4">
+        {/* --- HEADER --- */}
+        <div className="bg-white p-8 rounded-2xl shadow-sm border border-gray-200/60 text-center">
+           <h1 className="text-3xl font-bold text-gray-900 mb-3 leading-tight">{survey.title}</h1>
+           {survey.description && <p className="text-gray-500 text-lg mb-6">{survey.description}</p>}
+           
+           <div className="flex justify-center gap-4 text-xs font-medium text-gray-400 uppercase tracking-wider">
+              <div className="flex items-center gap-1"><User size={14}/> {survey.author?.name || 'Автор'}</div>
+              <div className="flex items-center gap-1"><Clock size={14}/> {new Date(survey.createdAt).toLocaleDateString()}</div>
+           </div>
+        </div>
+
+        {/* --- QUESTIONS --- */}
+        {survey.questions.map((q, index) => {
+          const selected = answers[q.id] || [];
+          const isMulti = q.type === 'MULTI';
+          
+          return (
+            <div key={q.id} className="bg-white p-6 md:p-8 rounded-2xl shadow-sm border border-gray-200/60">
+               <div className="flex items-start gap-4 mb-6">
+                 <div className="flex-shrink-0 w-8 h-8 rounded-lg bg-indigo-50 text-indigo-600 flex items-center justify-center font-bold text-sm">
+                    {index + 1}
+                 </div>
+                 <div>
+                    <h3 className="text-lg font-medium text-gray-900 leading-snug">{q.text}</h3>
+                    {isMulti && <p className="text-xs text-gray-400 mt-1 font-medium">Выберите несколько вариантов</p>}
+                 </div>
+               </div>
+
+               <div className="space-y-3 pl-0 md:pl-12">
+                 {q.options.map(opt => {
+                   const isSelected = selected.includes(opt.id);
+                   return (
+                     <label 
+                        key={opt.id} 
+                        className={`
+                           group flex items-center gap-4 p-4 rounded-xl border-2 cursor-pointer transition-all duration-200 relative overflow-hidden
+                           ${isSelected 
+                              ? 'border-indigo-600 bg-indigo-50/50 z-10' 
+                              : 'border-gray-100 bg-white hover:border-indigo-200 hover:bg-gray-50'
+                           }
+                        `}
+                     >
+                        {/* Индикатор выбора */}
+                        <div className={`
+                          w-6 h-6 flex items-center justify-center flex-shrink-0 border-2 transition-all duration-200
+                          ${isMulti ? 'rounded-md' : 'rounded-full'} 
+                          ${isSelected 
+                             ? 'border-indigo-600 bg-indigo-600 text-white scale-110 shadow-md shadow-indigo-200' 
+                             : 'border-gray-300 bg-white group-hover:border-indigo-300'
+                          }
+                        `}>
+                           {isMulti 
+                              ? <Check size={14} strokeWidth={3} className={`transition-transform ${isSelected ? 'scale-100' : 'scale-0'}`}/> 
+                              : <div className={`w-2.5 h-2.5 bg-white rounded-full transition-transform ${isSelected ? 'scale-100' : 'scale-0'}`}/>
+                           }
+                        </div>
+
+                        <input 
+                          type={isMulti ? 'checkbox' : 'radio'} 
+                          name={`q-${q.id}`} 
+                          onChange={() => handleSelect(q.id, q.type, opt.id)} 
+                          className="hidden"
+                          checked={isSelected}
+                        />
+                        
+                        <span className={`font-medium transition-colors text-base ${isSelected ? 'text-indigo-900' : 'text-gray-700'}`}>
+                          {opt.text}
+                        </span>
+                     </label>
+                   );
+                 })}
+               </div>
+            </div>
+          );
+        })}
+      </div>
+
+      {/* --- BOTTOM BAR (FLOATING) --- */}
+      <div className="fixed bottom-0 left-0 w-full bg-white border-t border-gray-200 p-4 flex justify-center md:justify-end md:px-10 z-20 shadow-[0_-4px_20px_rgba(0,0,0,0.05)]">
+         <div className="w-full max-w-2xl flex justify-end">
+            <Button 
+               onClick={handleSubmitClick} 
+               className="w-full md:w-auto px-8 h-12 text-lg font-medium bg-indigo-600 hover:bg-indigo-700 shadow-lg shadow-indigo-200 rounded-xl transition-transform active:scale-95"
+            >
+               Завершить опрос
+            </Button>
+         </div>
+      </div>
+    </div>
+  );
+}
+
+// Маленькая иконка для экрана результатов
+function TrophyIcon(props) {
+  return (
+    <svg {...props} xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><path d="M6 9H4.5a2.5 2.5 0 0 1 0-5H6"/><path d="M18 9h1.5a2.5 2.5 0 0 0 0-5H18"/><path d="M4 22h16"/><path d="M10 14.66V17c0 .55-.47.98-.97 1.21C7.85 18.75 7 20.24 7 22"/><path d="M14 14.66V17c0 .55.47.98.97 1.21C16.15 18.75 17 20.24 17 22"/><path d="M18 2H6v7a6 6 0 0 0 12 0V2Z"/></svg>
+  )
+}
--- a/survey-app/tailwind.config.js
+++ b/survey-app/tailwind.config.js
@@ -0,0 +1,11 @@
+/** @type {import('tailwindcss').Config} */
+export default {
+  content: [
+    "./index.html",
+    "./src/**/*.{js,ts,jsx,tsx}",
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [],
+}
--- a/survey-app/vite.config.js
+++ b/survey-app/vite.config.js
@@ -0,0 +1,7 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [react()],
+})
--- a/survey-backend/.gitignore
+++ b/survey-backend/.gitignore
@@ -0,0 +1,17 @@
+# Зависимости
+node_modules/
+server/node_modules/
+
+# Сборка
+dist/
+server/dist/
+build/
+
+# Среда и секреты (Никогда не отправляй их!)
+.env
+server/.env
+
+# Логи и системные файлы
+*.log
+.DS_Store
+.vscode/
--- a/survey-backend/docker-compose.yml
+++ b/survey-backend/docker-compose.yml
@@ -0,0 +1,15 @@
+version: '3.8'
+services:
+  postgres:
+    image: postgres:15
+    environment:
+      POSTGRES_USER: admin
+      POSTGRES_PASSWORD: password123
+      POSTGRES_DB: surveydb
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+volumes:
+  postgres_data:
--- a/survey-backend/package-lock.json
+++ b/survey-backend/package-lock.json
--- a/survey-backend/package.json
+++ b/survey-backend/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "survey-backend",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+  "dev": "nodemon src/index.ts",
+  "build": "tsc",
+  "start": "node dist/index.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "dependencies": {
+    "@prisma/client": "^6.19.0",
+    "bcryptjs": "^3.0.3",
+    "cors": "^2.8.5",
+    "dotenv": "^17.2.3",
+    "express": "^5.1.0",
+    "jsonwebtoken": "^9.0.2",
+    "prisma": "^6.19.0",
+    "zod": "^4.1.12"
+  },
+  "devDependencies": {
+    "@types/bcryptjs": "^2.4.6",
+    "@types/cors": "^2.8.19",
+    "@types/express": "^5.0.5",
+    "@types/jsonwebtoken": "^9.0.10",
+    "@types/node": "^24.10.1",
+    "nodemon": "^3.1.11",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.9.3"
+  }
+}
--- a/survey-backend/prisma.config.ts
+++ b/survey-backend/prisma.config.ts
@@ -0,0 +1,12 @@
+import { defineConfig, env } from "prisma/config";
+
+export default defineConfig({
+  schema: "prisma/schema.prisma",
+  migrations: {
+    path: "prisma/migrations",
+  },
+  engine: "classic",
+  datasource: {
+    url: env("DATABASE_URL"),
+  },
+});
--- a/survey-backend/prisma/schema.prisma
+++ b/survey-backend/prisma/schema.prisma
@@ -0,0 +1,100 @@
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+// --- МОДЕЛИ ---
+
+model User {
+  id           Int       @id @default(autoincrement())
+  email        String    @unique
+  password     String    // Хеш пароля
+  name         String?
+  inviteCode   String    @unique // Уникальный код типа "#USER-1234"
+  
+  surveys      Survey[]  @relation("CreatedSurveys") // Опросы, которые я создал
+  submissions  Submission[] // Опросы, которые я прошел
+  
+  allowedIn    AllowedAccess[] // Куда меня пригласили
+}
+
+model Survey {
+  id          Int       @id @default(autoincrement())
+  title       String
+  description String?
+  isPublished Boolean   @default(false)
+  accessType  AccessType @default(PUBLIC) // PUBLIC, INVITE_ONLY
+  createdAt   DateTime  @default(now())
+  
+  authorId    Int
+  author      User      @relation("CreatedSurveys", fields: [authorId], references: [id])
+
+  questions   Question[]
+  submissions Submission[]
+  allowedUsers AllowedAccess[]
+}
+
+enum AccessType {
+  PUBLIC
+  INVITE_ONLY
+}
+
+model Question {
+  id        Int      @id @default(autoincrement())
+  surveyId  Int
+  survey    Survey   @relation(fields: [surveyId], references: [id], onDelete: Cascade)
+  
+  text      String
+  type      QuestionType @default(SINGLE)
+  points    Int      @default(0)
+  order     Int      @default(0)
+
+  options   Option[]
+}
+
+enum QuestionType {
+  SINGLE // Один выбор (Radio)
+  MULTI  // Множественный (Checkbox)
+  // TEXT - можно добавить позже
+}
+
+model Option {
+  id         Int      @id @default(autoincrement())
+  questionId Int
+  question   Question @relation(fields: [questionId], references: [id], onDelete: Cascade)
+  
+  text       String
+  isCorrect  Boolean  @default(false) // Правильный ли это ответ?
+}
+
+// Белый список для приватных опросов
+model AllowedAccess {
+  id       Int    @id @default(autoincrement())
+  surveyId Int
+  userId   Int
+  
+  // ДОБАВЛЕНО: onDelete: Cascade
+  survey   Survey @relation(fields: [surveyId], references: [id], onDelete: Cascade)
+  user     User   @relation(fields: [userId], references: [id])
+
+  @@unique([surveyId, userId])
+}
+
+// Результаты прохождения
+model Submission {
+  id        Int      @id @default(autoincrement())
+  surveyId  Int
+  userId    Int?
+  
+  score     Int
+  maxScore  Int
+  completedAt DateTime @default(now())
+
+  // ДОБАВЛЕНО: onDelete: Cascade
+  survey    Survey   @relation(fields: [surveyId], references: [id], onDelete: Cascade)
+  user      User?    @relation(fields: [userId], references: [id])
+}
--- a/survey-backend/src/index.ts
+++ b/survey-backend/src/index.ts
@@ -0,0 +1,248 @@
+import express from 'express';
+import type { Request, Response, NextFunction } from 'express';
+import cors from 'cors';
+import { PrismaClient } from '@prisma/client';
+import jwt from 'jsonwebtoken';
+import bcrypt from 'bcryptjs';
+
+// Логируем SQL запросы для отладки (опционально)
+const prisma = new PrismaClient({
+  log: ['error', 'warn'],
+});
+
+const app = express();
+const PORT = 5000;
+const SECRET_KEY = process.env.JWT_SECRET || 'dev-secret';
+
+app.use(cors());
+app.use(express.json());
+
+// --- MIDDLEWARE ---
+interface AuthRequest extends Request { user?: { id: number; email: string }; }
+
+const authMiddleware = (req: AuthRequest, res: Response, next: NextFunction) => {
+  const header = req.headers.authorization;
+  if (!header) { res.status(401).json({ error: "No token" }); return; }
+  try {
+    const token = header.split(' ')[1];
+    req.user = jwt.verify(token, SECRET_KEY) as any;
+    next();
+  } catch (e) { res.status(401).json({ error: "Invalid token" }); }
+};
+
+// --- AUTH ---
+app.post('/api/auth/register', async (req, res) => {
+  try {
+    const { email, password, name } = req.body;
+    const hashedPassword = await bcrypt.hash(password, 10);
+    
+    // FIX 1: Генерируем код ВСЕГДА В ВЕРХНЕМ РЕГИСТРЕ
+    const inviteCode = `#USER-${Math.floor(10000 + Math.random() * 90000)}`.toUpperCase();
+    
+    const user = await prisma.user.create({ data: { email, password: hashedPassword, name, inviteCode } });
+    const token = jwt.sign({ id: user.id, email: user.email }, SECRET_KEY);
+    
+    console.log(`[AUTH] Registered: ${email} with code ${inviteCode}`);
+    res.json({ token, user: { id: user.id, name: user.name, inviteCode: user.inviteCode } });
+  } catch (e) { 
+    console.error(e);
+    res.status(400).json({ error: "User exists" }); 
+  }
+});
+
+app.post('/api/auth/login', async (req, res) => {
+  const { email, password } = req.body;
+  const user = await prisma.user.findUnique({ where: { email } });
+  if (!user || !await bcrypt.compare(password, user.password)) { res.status(401).json({ error: "Invalid credentials" }); return; }
+  const token = jwt.sign({ id: user.id, email: user.email }, SECRET_KEY);
+  res.json({ token, user: { id: user.id, name: user.name, inviteCode: user.inviteCode } });
+});
+
+app.get('/api/auth/me', authMiddleware, async (req: AuthRequest, res) => {
+  const user = await prisma.user.findUnique({ where: { id: req.user!.id } });
+  res.json(user);
+});
+
+// --- SURVEYS CRUD ---
+
+// CREATE
+app.post('/api/surveys', authMiddleware, async (req: AuthRequest, res) => {
+  // ... (код создания оставляем как был в прошлом шаге, он рабочий)
+  const { title, description, questions, accessType, allowedUserCodes } = req.body;
+  console.log(`[CREATE] Survey "${title}"`);
+
+  try {
+    let allowedIds: number[] = [];
+    if (accessType === 'INVITE_ONLY' && allowedUserCodes?.length) {
+      const users = await prisma.user.findMany({ 
+        where: { inviteCode: { in: allowedUserCodes, mode: 'insensitive' } } 
+      });
+      allowedIds = users.map(u => u.id);
+    }
+
+    const survey = await prisma.survey.create({
+      data: {
+        title, description, accessType, authorId: req.user!.id, isPublished: true,
+        questions: {
+          create: questions.map((q: any) => ({
+            text: q.text, 
+            type: q.type || 'SINGLE', // <--- Важно: сохраняем тип
+            points: q.points || 0,
+            options: { create: q.options.map((o: any) => ({ text: o.text, isCorrect: o.isCorrect || false })) }
+          }))
+        },
+        allowedUsers: { create: allowedIds.map(uid => ({ userId: uid })) }
+      }
+    });
+    res.json(survey);
+  } catch (e) { console.error(e); res.status(500).json({ error: "Create failed" }); }
+});
+
+// 2. UPDATE (NEW: Редактирование)
+app.put('/api/surveys/:id', authMiddleware, async (req: AuthRequest, res) => {
+  const id = Number(req.params.id);
+  const { title, questions, accessType, allowedUserCodes } = req.body;
+
+  // Проверяем права
+  const existing = await prisma.survey.findUnique({ where: { id } });
+  if (!existing || existing.authorId !== req.user!.id) {
+    res.status(403).json({ error: "Access denied" });
+    return;
+  }
+
+  try {
+    // Транзакция: Удаляем старое -> Создаем новое (Самый надежный способ для MVP)
+    await prisma.$transaction([
+      // 1. Обновляем шапку
+      prisma.survey.update({
+        where: { id },
+        data: { title, accessType }
+      }),
+      // 2. Удаляем старые доступы и вопросы (каскадно удалятся варианты)
+      prisma.allowedAccess.deleteMany({ where: { surveyId: id } }),
+      prisma.question.deleteMany({ where: { surveyId: id } }),
+    ]);
+
+    // 3. Создаем заново (как при CREATE)
+    let allowedIds: number[] = [];
+    if (accessType === 'INVITE_ONLY' && allowedUserCodes?.length) {
+      const users = await prisma.user.findMany({ where: { inviteCode: { in: allowedUserCodes, mode: 'insensitive' } } });
+      allowedIds = users.map(u => u.id);
+    }
+
+    // 4. Добавляем новые вопросы
+    // Мы не можем использовать nested update, поэтому делаем отдельный update
+    const updated = await prisma.survey.update({
+      where: { id },
+      data: {
+        questions: {
+          create: questions.map((q: any) => ({
+            text: q.text, type: q.type || 'SINGLE', points: q.points || 0,
+            options: { create: q.options.map((o: any) => ({ text: o.text, isCorrect: o.isCorrect || false })) }
+          }))
+        },
+        allowedUsers: { create: allowedIds.map(uid => ({ userId: uid })) }
+      }
+    });
+
+    res.json(updated);
+  } catch (e) { console.error(e); res.status(500).json({ error: "Update failed" }); }
+});
+
+// GET MY, DELETE, FEED, GET SINGLE -> Оставляем без изменений (код из прошлого сообщения)
+app.get('/api/surveys/my', authMiddleware, async (req: AuthRequest, res) => {
+  const surveys = await prisma.survey.findMany({
+    where: { authorId: req.user!.id },
+    include: { _count: { select: { submissions: true } } },
+    orderBy: { createdAt: 'desc' }
+  });
+  res.json(surveys);
+});
+
+app.delete('/api/surveys/:id', authMiddleware, async (req: AuthRequest, res) => {
+  try {
+    await prisma.survey.delete({ where: { id: Number(req.params.id), authorId: req.user!.id } });
+    res.json({ success: true });
+  } catch (e) { res.status(500).json({ error: "Delete failed" }); }
+});
+
+app.get('/api/surveys/feed', authMiddleware, async (req: AuthRequest, res) => {
+  // ... (Код из прошлого сообщения про Feed)
+  const userId = req.user!.id;
+  const publicSurveys = await prisma.survey.findMany({ where: { accessType: 'PUBLIC', isPublished: true, authorId: { not: userId } }, include: { author: { select: { name: true } }, _count: { select: { submissions: true } } } });
+  const invitedSurveys = await prisma.survey.findMany({ where: { accessType: 'INVITE_ONLY', isPublished: true, allowedUsers: { some: { userId: userId } } }, include: { author: { select: { name: true } }, _count: { select: { submissions: true } } } });
+  const allSurveys = [...publicSurveys, ...invitedSurveys].sort((a, b) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime());
+  res.json(allSurveys);
+});
+
+app.get('/api/surveys/:id', authMiddleware, async (req: AuthRequest, res) => {
+  // ... (Код получения одного опроса из прошлого сообщения)
+  const id = Number(req.params.id);
+  const isCreator = req.query.mode === 'edit';
+  const survey = await prisma.survey.findUnique({ where: { id }, include: { allowedUsers: { include: { user: true } }, questions: { include: { options: true } } } });
+  if (!survey) { res.status(404).json({ error: "Not found" }); return; }
+  if (!isCreator) {
+    if (survey.accessType === 'INVITE_ONLY') {
+      const isAllowed = survey.allowedUsers.some(u => u.userId === req.user!.id);
+      if (!isAllowed && survey.authorId !== req.user!.id) { res.status(403).json({ error: "Access denied" }); return; }
+    }
+    survey.questions.forEach(q => q.options.forEach(o => (o as any).isCorrect = undefined));
+  } else { if (survey.authorId !== req.user!.id) { res.status(403).json({ error: "Not your survey" }); return; } }
+  res.json(survey);
+});
+
+
+// SUBMIT (NEW LOGIC: Поддержка MULTI)
+app.post('/api/surveys/:id/submit', authMiddleware, async (req: AuthRequest, res) => {
+  const surveyId = Number(req.params.id);
+  const { answers } = req.body; // answers: { questionId: number, optionId: number }[]
+
+  const survey = await prisma.survey.findUnique({ 
+    where: { id: surveyId }, 
+    include: { questions: { include: { options: true } } } 
+  });
+  
+  if (!survey) return;
+
+  let totalScore = 0; // Сколько набрал юзер
+  let maxScore = 0;   // Сколько можно было набрать (сумма всех правильных галочек)
+
+  survey.questions.forEach(q => {
+    // 1. Считаем, сколько всего правильных ответов в этом вопросе
+    // Если вопрос SINGLE, там будет 1 правильный. Если MULTI — может быть несколько.
+    const correctOptionIds = q.options.filter(o => o.isCorrect).map(o => o.id);
+    maxScore += correctOptionIds.length;
+
+    // 2. Смотрим, что выбрал юзер
+    const userSelectedOptionIds = answers
+      .filter((a: any) => a.questionId === q.id)
+      .map((a: any) => a.optionId);
+
+    // 3. Начисляем баллы: +1 за каждое совпадение
+    userSelectedOptionIds.forEach((selectedId: number) => {
+      if (correctOptionIds.includes(selectedId)) {
+        totalScore += 1;
+      } else {
+        // Опционально: Можно отнимать баллы за ошибки (totalScore -= 1), 
+        // но пока оставим просто 0 (не угадал - не получил).
+      }
+    });
+  });
+
+  const sub = await prisma.submission.create({
+    data: { surveyId, userId: req.user!.id, score: totalScore, maxScore }
+  });
+  
+  res.json({ score: totalScore, maxScore, id: sub.id });
+});
+
+app.get('/api/surveys/:id/results', authMiddleware, async (req: AuthRequest, res) => {
+   // ... (старый код)
+   const surveyId = Number(req.params.id);
+   const survey = await prisma.survey.findUnique({ where: { id: surveyId } });
+   if (survey?.authorId !== req.user!.id) { res.status(403).json({ error: "Access denied" }); return; }
+   const submissions = await prisma.submission.findMany({ where: { surveyId }, include: { user: { select: { name: true, email: true } } }, orderBy: { completedAt: 'desc' } });
+   res.json(submissions);
+});
+
+app.listen(PORT, () => console.log(`Server running on ${PORT}`));
--- a/survey-backend/tsconfig.json
+++ b/survey-backend/tsconfig.json
@@ -0,0 +1,12 @@
+{
+  "compilerOptions": {
+    "target": "es2020",
+    "module": "commonjs",
+    "outDir": "./dist",
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "noImplicitAny": false
+  }
+}
				`@@ -0,0 +1 @@`
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