init push

frontend/src/App.jsx

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+import { Routes, Route, Link, Navigate } from 'react-router-dom';
+import { AuthProvider, useAuth } from './context/AuthContext';
+import Home from './pages/Home';
+import AddRecipe from './pages/AddRecipe';
+import RecipeDetail from './pages/RecipeDetail';
+import Login from './pages/Login';
+import Register from './pages/Register';
+import Admin from './pages/Admin';
+import Profile from './pages/Profile';
+
+function ProtectedRoute({ children }) {
+  const { user, loading } = useAuth();
+  if (loading) return <div className="text-center py-12 text-gray-400">Laden...</div>;
+  if (!user) return <Navigate to="/login" />;
+  return children;
+}
+
+function AdminRoute({ children }) {
+  const { user, loading } = useAuth();
+  if (loading) return <div className="text-center py-12 text-gray-400">Laden...</div>;
+  if (!user) return <Navigate to="/login" />;
+  if (!user.is_admin) return <Navigate to="/" />;
+  return children;
+}
+
+function AppContent() {
+  const { user, logout } = useAuth();
+
+  if (!user) {
+    return (
+      <Routes>
+        <Route path="/login" element={<Login />} />
+        <Route path="/register" element={<Register />} />
+        <Route path="*" element={<Navigate to="/login" />} />
+      </Routes>
+    );
+  }
+
+  return (
+    <div className="min-h-screen">
+      <nav className="bg-white shadow-sm border-b border-gray-200">
+        <div className="max-w-6xl mx-auto px-4 py-3 flex items-center justify-between">
+          <Link to="/" className="text-xl font-bold text-blue-600">
+            TikTok Rezepte
+          </Link>
+          <div className="flex items-center gap-3">
+            <Link
+              to="/add"
+              className="text-sm text-gray-500 hover:text-gray-700 font-medium transition-colors"
+            >
+              + Rezept hinzufügen
+            </Link>
+            {user.is_admin && (
+              <Link
+                to="/admin"
+                className="text-sm text-gray-500 hover:text-gray-700 font-medium transition-colors"
+              >
+                Dashboard
+              </Link>
+            )}
+            <Link
+              to="/profile"
+              className="text-sm text-gray-500 hover:text-gray-700 font-medium transition-colors"
+            >
+              Profil
+            </Link>
+            <span className="text-sm text-gray-400">|</span>
+            <span className="text-sm text-gray-500">
+              {user.username}
+              {user.is_admin && <span className="ml-1 text-xs bg-blue-100 text-blue-700 px-1.5 py-0.5 rounded-full">Admin</span>}
+            </span>
+            <button
+              onClick={logout}
+              className="text-sm text-gray-400 hover:text-gray-600 font-medium transition-colors"
+            >
+              Abmelden
+            </button>
+          </div>
+        </div>
+      </nav>
+
+      <main className="max-w-6xl mx-auto px-4 py-6">
+        <Routes>
+          <Route path="/" element={<ProtectedRoute><Home /></ProtectedRoute>} />
+          <Route path="/add" element={<ProtectedRoute><AddRecipe /></ProtectedRoute>} />
+          <Route path="/recipe/:id" element={<ProtectedRoute><RecipeDetail /></ProtectedRoute>} />
+          <Route path="/admin" element={<AdminRoute><Admin /></AdminRoute>} />
+          <Route path="/profile" element={<ProtectedRoute><Profile /></ProtectedRoute>} />
+          <Route path="/login" element={<Navigate to="/" />} />
+          <Route path="/register" element={<Navigate to="/" />} />
+          <Route path="*" element={<Navigate to="/" />} />
+        </Routes>
+      </main>
+    </div>
+  );
+}
+
+export default function App() {
+  return (
+    <AuthProvider>
+      <AppContent />
+    </AuthProvider>
+  );
+}

frontend/src/api.js

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+const API_BASE = '/api/recipes';
+
+async function apiFetch(url, options = {}) {
+  const res = await fetch(url, options);
+  const text = await res.text();
+  if (!res.ok) {
+    let msg = `Server-Fehler (${res.status})`;
+    try { msg = JSON.parse(text).error || msg; } catch {}
+    throw new Error(msg);
+  }
+  if (!text) throw new Error('Leere Antwort vom Server – Backend läuft nicht?');
+  return JSON.parse(text);
+}
+
+export async function fetchRecipes(search, category) {
+  const params = new URLSearchParams();
+  if (search) params.set('search', search);
+  if (category && category !== 'Alle') params.set('category', category);
+  return apiFetch(`${API_BASE}?${params}`);
+}
+
+export async function fetchRecipe(id) {
+  return apiFetch(`${API_BASE}/${id}`);
+}
+
+export async function saveRecipe(recipe) {
+  return apiFetch(API_BASE, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(recipe),
+  });
+}
+
+export async function updateRecipe(id, recipe) {
+  return apiFetch(`${API_BASE}/${id}`, {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(recipe),
+  });
+}
+
+export async function deleteRecipe(id) {
+  return apiFetch(`${API_BASE}/${id}`, { method: 'DELETE' });
+}
+
+export async function extractFromTikTok(url) {
+  return apiFetch(`${API_BASE}/from-tiktok`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ url }),
+  });
+}
+
+export async function fetchCategories() {
+  return apiFetch(`${API_BASE}/categories`);
+}
+
+export async function checkAiStatus() {
+  return apiFetch(`${API_BASE}/ai-status`);
+}

frontend/src/auth.js

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+const AUTH_BASE = '/api/auth';
+
+async function authFetch(url, options = {}) {
+  const res = await fetch(url, options);
+  const text = await res.text();
+  if (!text) throw new Error('Leere Antwort vom Server – Backend läuft nicht?');
+  const data = JSON.parse(text);
+  if (!res.ok) throw new Error(data.error || `Server-Fehler (${res.status})`);
+  return data;
+}
+
+export async function loginUser(username, password) {
+  return authFetch(`${AUTH_BASE}/login`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ username, password }),
+  });
+}
+
+export async function registerUser(username, password, inviteToken) {
+  return authFetch(`${AUTH_BASE}/register`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ username, password, inviteToken }),
+  });
+}
+
+export async function fetchCurrentUser(token) {
+  const res = await fetch(`${AUTH_BASE}/me`, {
+    headers: { Authorization: `Bearer ${token}` },
+  });
+  const text = await res.text();
+  if (!res.ok || !text) throw new Error('Nicht authentifiziert');
+  return JSON.parse(text);
+}
+
+export async function createInvites(token, count = 1) {
+  return authFetch(`${AUTH_BASE}/invite`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
+    body: JSON.stringify({ count }),
+  });
+}
+
+export async function fetchInvites(token) {
+  return authFetch(`${AUTH_BASE}/invites`, {
+    headers: { Authorization: `Bearer ${token}` },
+  });
+}
+
+export async function fetchUsers(token) {
+  return authFetch(`${AUTH_BASE}/users`, {
+    headers: { Authorization: `Bearer ${token}` },
+  });
+}
+
+export async function updateCredentials(token, { currentPassword, newUsername, newPassword }) {
+  return authFetch(`${AUTH_BASE}/credentials`, {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${token}` },
+    body: JSON.stringify({ currentPassword, newUsername, newPassword }),
+  });
+}
+
+export async function deleteUser(token, userId) {
+  return authFetch(`${AUTH_BASE}/users/${userId}`, {
+    method: 'DELETE',
+    headers: { Authorization: `Bearer ${token}` },
+  });
+}

frontend/src/components/CategoryBadge.jsx

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+const CATEGORY_COLORS = {
+  'Frühstück': 'bg-yellow-100 text-yellow-800',
+  'Hauptgericht': 'bg-red-100 text-red-800',
+  'Dessert': 'bg-pink-100 text-pink-800',
+  'Snack': 'bg-green-100 text-green-800',
+  'Getränk': 'bg-blue-100 text-blue-800',
+  'Sonstiges': 'bg-gray-100 text-gray-800',
+};
+
+const CATEGORY_ICONS = {
+  'Frühstück': '🍳',
+  'Hauptgericht': '🍽️',
+  'Dessert': '🍰',
+  'Snack': '🍿',
+  'Getränk': '🥤',
+  'Sonstiges': '📋',
+};
+
+export default function CategoryBadge({ category }) {
+  const colorClass = CATEGORY_COLORS[category] || CATEGORY_COLORS['Sonstiges'];
+  const icon = CATEGORY_ICONS[category] || CATEGORY_ICONS['Sonstiges'];
+
+  return (
+    <span className={`text-xs font-medium px-2 py-1 rounded-full whitespace-nowrap ${colorClass}`}>
+      {icon} {category}
+    </span>
+  );
+}

frontend/src/components/IngredientList.jsx

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+import { useState } from 'react';
+
+export default function IngredientList({ ingredients, editable, onChange }) {
+  const [checked, setChecked] = useState({});
+
+  const toggle = (i) => setChecked(prev => ({ ...prev, [i]: !prev[i] }));
+
+  const updateIngredient = (i, field, value) => {
+    const updated = ingredients.map((ing, idx) =>
+      idx === i ? { ...ing, [field]: value } : ing
+    );
+    onChange(updated);
+  };
+
+  const addIngredient = () => {
+    onChange([...ingredients, { name: '', amount: '', unit: '' }]);
+  };
+
+  const removeIngredient = (i) => {
+    onChange(ingredients.filter((_, idx) => idx !== i));
+  };
+
+  return (
+    <div>
+      <h3 className="font-semibold text-lg mb-3">Zutaten</h3>
+      <ul className="space-y-2">
+        {ingredients.map((ing, i) => (
+          <li key={i} className="flex items-center gap-2">
+            {!editable && (
+              <input
+                type="checkbox"
+                checked={!!checked[i]}
+                onChange={() => toggle(i)}
+                className="w-4 h-4 accent-blue-600"
+              />
+            )}
+            {editable ? (
+              <>
+                <input
+                  type="text"
+                  value={ing.amount}
+                  onChange={e => updateIngredient(i, 'amount', e.target.value)}
+                  placeholder="Menge"
+                  className="w-16 px-2 py-1 border border-gray-300 rounded text-sm"
+                />
+                <input
+                  type="text"
+                  value={ing.unit}
+                  onChange={e => updateIngredient(i, 'unit', e.target.value)}
+                  placeholder="Einheit"
+                  className="w-14 px-2 py-1 border border-gray-300 rounded text-sm"
+                />
+                <input
+                  type="text"
+                  value={ing.name}
+                  onChange={e => updateIngredient(i, 'name', e.target.value)}
+                  placeholder="Zutat"
+                  className="flex-1 px-2 py-1 border border-gray-300 rounded text-sm"
+                />
+                <button onClick={() => removeIngredient(i)} className="text-red-400 hover:text-red-600 text-lg">&times;</button>
+              </>
+            ) : (
+              <span className={`${checked[i] ? 'line-through text-gray-400' : ''}`}>
+                {ing.amount && `${ing.amount} `}
+                {ing.unit && `${ing.unit} `}
+                {ing.name}
+              </span>
+            )}
+          </li>
+        ))}
+      </ul>
+      {editable && (
+        <button
+          onClick={addIngredient}
+          className="mt-2 text-sm text-blue-600 hover:text-blue-700 font-medium"
+        >
+          + Zutat hinzufügen
+        </button>
+      )}
+    </div>
+  );
+}

frontend/src/components/RecipeCard.jsx

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+import { Link } from 'react-router-dom';
+import CategoryBadge from './CategoryBadge';
+
+export default function RecipeCard({ recipe }) {
+  return (
+    <Link
+      to={`/recipe/${recipe.id}`}
+      className="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden hover:shadow-md transition-shadow"
+    >
+      {recipe.thumbnail_url && (
+        <img
+          src={recipe.thumbnail_url}
+          alt={recipe.name}
+          className="w-full h-48 object-cover"
+        />
+      )}
+      <div className="p-4">
+        <div className="flex items-start justify-between gap-2 mb-2">
+          <h3 className="font-semibold text-lg leading-tight">{recipe.name}</h3>
+          <CategoryBadge category={recipe.category} />
+        </div>
+        {recipe.description && (
+          <p className="text-gray-500 text-sm line-clamp-2 mb-2">
+            {recipe.description}
+          </p>
+        )}
+        <div className="flex items-center gap-4 text-xs text-gray-400">
+          {recipe.tiktok_author && <span>@{recipe.tiktok_author}</span>}
+          <span>{recipe.ingredients?.length || 0} Zutaten</span>
+          <span>{recipe.steps?.length || 0} Schritte</span>
+        </div>
+      </div>
+    </Link>
+  );
+}

frontend/src/components/StepList.jsx

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+import { useState } from 'react';
+
+export default function StepList({ steps, editable, onChange }) {
+  const [completed, setCompleted] = useState({});
+
+  const toggle = (i) => setCompleted(prev => ({ ...prev, [i]: !prev[i] }));
+
+  const updateStep = (i, value) => {
+    const updated = steps.map((s, idx) => (idx === i ? value : s));
+    onChange(updated);
+  };
+
+  const addStep = () => onChange([...steps, '']);
+
+  const removeStep = (i) => onChange(steps.filter((_, idx) => idx !== i));
+
+  const moveStep = (i, direction) => {
+    const arr = [...steps];
+    const j = i + direction;
+    if (j < 0 || j >= arr.length) return;
+    [arr[i], arr[j]] = [arr[j], arr[i]];
+    onChange(arr);
+  };
+
+  return (
+    <div>
+      <h3 className="font-semibold text-lg mb-3">Zubereitung</h3>
+      <ol className="space-y-3">
+        {steps.map((step, i) => (
+          <li key={i} className="flex items-start gap-3">
+            {!editable && (
+              <button
+                onClick={() => toggle(i)}
+                className={`mt-1 w-6 h-6 rounded-full border-2 flex-shrink-0 flex items-center justify-center text-xs font-bold transition-colors ${
+                  completed[i]
+                    ? 'bg-blue-600 border-blue-600 text-white'
+                    : 'border-gray-300 text-gray-400'
+                }`}
+              >
+                {completed[i] ? '✓' : i + 1}
+              </button>
+            )}
+            {editable ? (
+              <div className="flex-1 flex gap-2">
+                <span className="mt-2 text-sm font-bold text-gray-400 w-5">{i + 1}.</span>
+                <textarea
+                  value={step}
+                  onChange={e => updateStep(i, e.target.value)}
+                  rows={2}
+                  className="flex-1 px-2 py-1 border border-gray-300 rounded text-sm resize-none"
+                />
+                <div className="flex flex-col gap-1">
+                  <button onClick={() => moveStep(i, -1)} className="text-gray-400 hover:text-gray-600 text-xs">&uarr;</button>
+                  <button onClick={() => moveStep(i, 1)} className="text-gray-400 hover:text-gray-600 text-xs">&darr;</button>
+                  <button onClick={() => removeStep(i)} className="text-red-400 hover:text-red-600 text-xs">&times;</button>
+                </div>
+              </div>
+            ) : (
+              <p className={`${completed[i] ? 'line-through text-gray-400' : ''}`}>
+                {step}
+              </p>
+            )}
+          </li>
+        ))}
+      </ol>
+      {editable && (
+        <button
+          onClick={addStep}
+          className="mt-2 text-sm text-blue-600 hover:text-blue-700 font-medium"
+        >
+          + Schritt hinzufügen
+        </button>
+      )}
+    </div>
+  );
+}

frontend/src/context/AuthContext.jsx

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+import { createContext, useContext, useState, useEffect } from 'react';
+import { fetchCurrentUser } from '../auth';
+
+const AuthContext = createContext(null);
+
+export function AuthProvider({ children }) {
+  const [user, setUser] = useState(null);
+  const [token, setToken] = useState(() => localStorage.getItem('token'));
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    if (token) {
+      fetchCurrentUser(token)
+        .then(u => setUser(u))
+        .catch(() => {
+          localStorage.removeItem('token');
+          setToken(null);
+        })
+        .finally(() => setLoading(false));
+    } else {
+      setLoading(false);
+    }
+  }, [token]);
+
+  const loginUser = (userData, userToken) => {
+    localStorage.setItem('token', userToken);
+    setToken(userToken);
+    setUser(userData);
+  };
+
+  const logout = () => {
+    localStorage.removeItem('token');
+    setToken(null);
+    setUser(null);
+  };
+
+  return (
+    <AuthContext.Provider value={{ user, token, loading, loginUser, logout }}>
+      {children}
+    </AuthContext.Provider>
+  );
+}
+
+export function useAuth() {
+  return useContext(AuthContext);
+}

frontend/src/index.css

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+@import "tailwindcss";
+
+body {
+  @apply bg-gray-50 text-gray-900;
+}

frontend/src/main.jsx

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+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import { BrowserRouter } from 'react-router-dom';
+import App from './App';
+import './index.css';
+
+ReactDOM.createRoot(document.getElementById('root')).render(
+  <React.StrictMode>
+    <BrowserRouter>
+      <App />
+    </BrowserRouter>
+  </React.StrictMode>
+);

frontend/src/pages/AddRecipe.jsx

@@ -0,0 +1,194 @@
+import { useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { extractFromTikTok, saveRecipe } from '../api';
+import IngredientList from '../components/IngredientList';
+import StepList from '../components/StepList';
+
+const CATEGORIES = ['Frühstück', 'Hauptgericht', 'Dessert', 'Snack', 'Getränk', 'Sonstiges'];
+
+export default function AddRecipe() {
+  const navigate = useNavigate();
+  const [url, setUrl] = useState('');
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState('');
+  const [saving, setSaving] = useState(false);
+
+  const [name, setName] = useState('');
+  const [description, setDescription] = useState('');
+  const [category, setCategory] = useState('Sonstiges');
+  const [ingredients, setIngredients] = useState([]);
+  const [steps, setSteps] = useState([]);
+  const [thumbnail, setThumbnail] = useState('');
+  const [tiktokAuthor, setTiktokAuthor] = useState('');
+  const [hasData, setHasData] = useState(false);
+  const [aiStatus, setAiStatus] = useState(null);
+
+  const handleExtract = async () => {
+    if (!url.trim()) return;
+    setLoading(true);
+    setError('');
+    setAiStatus(null);
+    try {
+      const data = await extractFromTikTok(url);
+      if (data.tiktok) {
+        setThumbnail(data.tiktok.thumbnail);
+        setTiktokAuthor(data.tiktok.author);
+      }
+      if (data.extracted) {
+        setName(data.extracted.name || '');
+        setDescription(data.extracted.description || '');
+        setCategory(data.extracted.category || 'Sonstiges');
+        setIngredients(data.extracted.ingredients || []);
+        setSteps(data.extracted.steps || []);
+      } else {
+        setName(data.tiktok?.title || '');
+      }
+      setAiStatus(data.aiStatus || (data.extracted ? 'success' : 'unavailable'));
+      setHasData(true);
+    } catch (e) {
+      setError('Fehler beim Abrufen der TikTok-Daten. Überprüfe die URL.');
+    }
+    setLoading(false);
+  };
+
+  const handleSave = async () => {
+    if (!name.trim()) return;
+    setSaving(true);
+    try {
+      const recipe = await saveRecipe({
+        name, description, category, ingredients, steps,
+        tiktok_url: url, tiktok_author: tiktokAuthor, thumbnail_url: thumbnail,
+      });
+      navigate(`/recipe/${recipe.id}`);
+    } catch (e) {
+      setError('Fehler beim Speichern.');
+    }
+    setSaving(false);
+  };
+
+  return (
+    <div className="max-w-2xl mx-auto">
+      <h1 className="text-2xl font-bold mb-6">Rezept hinzufügen</h1>
+
+      <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-6 mb-6">
+        <label className="block text-sm font-medium text-gray-700 mb-2">
+          TikTok Video-URL
+        </label>
+        <div className="flex gap-2">
+          <input
+            type="url"
+            value={url}
+            onChange={e => setUrl(e.target.value)}
+            placeholder="https://www.tiktok.com/@user/video/..."
+            className="flex-1 px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
+            onKeyDown={e => e.key === 'Enter' && handleExtract()}
+          />
+          <button
+            onClick={handleExtract}
+            disabled={loading}
+            className="bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white px-6 py-2 rounded-lg font-medium transition-colors"
+          >
+            {loading ? 'Laden...' : 'Extrahieren'}
+          </button>
+        </div>
+        {error && <p className="text-red-500 text-sm mt-2">{error}</p>}
+      </div>
+
+      {hasData && (
+        <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-6 space-y-6">
+          {thumbnail && (
+            <img src={thumbnail} alt="" className="w-full h-48 object-cover rounded-lg" />
+          )}
+
+          {aiStatus && (
+            <div className={`flex items-center gap-2 text-sm px-3 py-2 rounded-lg ${
+              aiStatus === 'success'
+                ? 'bg-green-50 text-green-700 border border-green-200'
+                : aiStatus === 'error'
+                ? 'bg-yellow-50 text-yellow-700 border border-yellow-200'
+                : 'bg-gray-50 text-gray-500 border border-gray-200'
+            }`}>
+              {aiStatus === 'success' && (
+                <>
+                  <svg className="w-4 h-4 text-green-500" fill="currentColor" viewBox="0 0 20 20">
+                    <path fillRule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clipRule="evenodd" />
+                  </svg>
+                  Zutaten und Zubereitung wurden per KI extrahiert — überprüfe und passe bei Bedarf an.
+                </>
+              )}
+              {aiStatus === 'error' && (
+                <>
+                  <svg className="w-4 h-4 text-yellow-500" fill="currentColor" viewBox="0 0 20 20">
+                    <path fillRule="evenodd" d="M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z" clipRule="evenodd" />
+                  </svg>
+                  KI konnte nicht extrahieren — füll die Felder manuell aus.
+                </>
+              )}
+              {aiStatus === 'unavailable' && (
+                <>
+                  <svg className="w-4 h-4 text-gray-400 flex-shrink-0" fill="currentColor" viewBox="0 0 20 20">
+                    <path fillRule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clipRule="evenodd" />
+                  </svg>
+                  <span>
+                    KI (Ollama) nicht erreichbar.{' '}
+                    <span className="text-gray-400">Starte Ollama oder füll die Felder manuell aus.</span>
+                  </span>
+                </>
+              )}
+            </div>
+          )}
+
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">Name</label>
+            <input
+              type="text"
+              value={name}
+              onChange={e => setName(e.target.value)}
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">Beschreibung</label>
+            <textarea
+              value={description}
+              onChange={e => setDescription(e.target.value)}
+              rows={2}
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 resize-none"
+            />
+          </div>
+
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">Kategorie</label>
+            <select
+              value={category}
+              onChange={e => setCategory(e.target.value)}
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
+            >
+              {CATEGORIES.map(c => <option key={c} value={c}>{c}</option>)}
+            </select>
+          </div>
+
+          <IngredientList ingredients={ingredients} editable onChange={setIngredients} />
+          <StepList steps={steps} editable onChange={setSteps} />
+
+          <div className="flex gap-3 pt-2">
+            <button
+              onClick={handleSave}
+              disabled={saving || !name.trim()}
+              className="flex-1 bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white py-3 rounded-lg font-semibold transition-colors"
+            >
+              {saving ? 'Speichern...' : 'Rezept speichern'}
+            </button>
+            <button
+              onClick={() => navigate('/')}
+              className="px-6 py-3 border border-gray-300 rounded-lg font-medium hover:bg-gray-50 transition-colors"
+            >
+              Abbrechen
+            </button>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/pages/Admin.jsx

@@ -0,0 +1,215 @@
+import { useState, useEffect } from 'react';
+import { useAuth } from '../context/AuthContext';
+import { createInvites, fetchInvites, fetchUsers, deleteUser as apiDeleteUser } from '../auth';
+
+export default function Admin() {
+  const { token, user: authUser } = useAuth();
+  const [invites, setInvites] = useState([]);
+  const [stats, setStats] = useState({ total: 0, used: 0, available: 0 });
+  const [users, setUsers] = useState([]);
+  const [inviteCount, setInviteCount] = useState(1);
+  const [newTokens, setNewTokens] = useState([]);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState('');
+  const [copied, setCopied] = useState('');
+
+  useEffect(() => {
+    loadData();
+  }, []);
+
+  const loadData = async () => {
+    try {
+      const [invitesData, usersData] = await Promise.all([
+        fetchInvites(token),
+        fetchUsers(token),
+      ]);
+      setInvites(invitesData.invites);
+      setStats(invitesData.stats);
+      setUsers(usersData);
+    } catch (err) {
+      setError(err.message);
+    }
+  };
+
+  const handleCreateInvites = async (e) => {
+    e.preventDefault();
+    setLoading(true);
+    setError('');
+    try {
+      const data = await createInvites(token, inviteCount);
+      setNewTokens(data.tokens);
+      await loadData();
+    } catch (err) {
+      setError(err.message);
+    }
+    setLoading(false);
+  };
+
+  const copyToClipboard = (text) => {
+    const url = `${window.location.origin}/register?invite=${text}`;
+    navigator.clipboard.writeText(url);
+    setCopied(text);
+    setTimeout(() => setCopied(''), 2000);
+  };
+
+  const handleDeleteUser = async (userId, username) => {
+    if (!confirm(`Benutzer "${username}" wirklich löschen?`)) return;
+    try {
+      await apiDeleteUser(token, userId);
+      await loadData();
+    } catch (err) {
+      setError(err.message);
+    }
+  };
+
+  return (
+    <div className="max-w-4xl mx-auto space-y-8">
+      <h1 className="text-2xl font-bold">Admin Dashboard</h1>
+
+      {error && (
+        <div className="bg-red-50 border border-red-200 text-red-700 text-sm px-4 py-3 rounded-xl">
+          {error}
+        </div>
+      )}
+
+      <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
+        <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
+          <p className="text-sm text-gray-500">Einladungen erstellt</p>
+          <p className="text-3xl font-bold text-blue-600">{stats.total}</p>
+        </div>
+        <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
+          <p className="text-sm text-gray-500">Verwendet</p>
+          <p className="text-3xl font-bold text-green-600">{stats.used}</p>
+        </div>
+        <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-5">
+          <p className="text-sm text-gray-500">Offen</p>
+          <p className="text-3xl font-bold text-orange-500">{stats.available}</p>
+        </div>
+      </div>
+
+      <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-6">
+        <h2 className="text-lg font-semibold mb-4">Neue Einladung erstellen</h2>
+        <form onSubmit={handleCreateInvites} className="flex items-end gap-3">
+          <div className="flex-1 max-w-xs">
+            <label className="block text-sm font-medium text-gray-700 mb-1">Anzahl</label>
+            <input
+              type="number"
+              min={1}
+              max={20}
+              value={inviteCount}
+              onChange={e => setInviteCount(parseInt(e.target.value) || 1)}
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+          <button
+            type="submit"
+            disabled={loading}
+            className="bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white px-6 py-2 rounded-lg font-medium transition-colors"
+          >
+            {loading ? 'Erstellen...' : 'Erstellen'}
+          </button>
+        </form>
+
+        {newTokens.length > 0 && (
+          <div className="mt-4 space-y-2">
+            <p className="text-sm font-medium text-gray-700">Neue Einladungslinks:</p>
+            {newTokens.map((t, i) => (
+              <div key={i} className="flex items-center gap-2 bg-blue-50 rounded-lg px-3 py-2">
+                <code className="flex-1 text-sm text-blue-800 break-all">{t}</code>
+                <button
+                  onClick={() => copyToClipboard(t)}
+                  className="text-sm bg-blue-600 hover:bg-blue-700 text-white px-3 py-1 rounded-lg font-medium transition-colors whitespace-nowrap"
+                >
+                  {copied === t ? 'Kopiert!' : 'Link kopieren'}
+                </button>
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+
+      <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-6">
+        <h2 className="text-lg font-semibold mb-4">Alle Einladungen</h2>
+        {invites.length === 0 ? (
+          <p className="text-gray-400 text-sm">Noch keine Einladungen erstellt.</p>
+        ) : (
+          <div className="overflow-x-auto">
+            <table className="w-full text-sm">
+              <thead>
+                <tr className="border-b border-gray-200">
+                  <th className="text-left py-2 font-medium text-gray-500">Code</th>
+                  <th className="text-left py-2 font-medium text-gray-500">Erstellt</th>
+                  <th className="text-left py-2 font-medium text-gray-500">Status</th>
+                  <th className="text-left py-2 font-medium text-gray-500">Genutzt von</th>
+                </tr>
+              </thead>
+              <tbody>
+                {invites.map(inv => (
+                  <tr key={inv.id} className="border-b border-gray-100">
+                    <td className="py-2">
+                      <code className="text-xs bg-gray-100 px-2 py-1 rounded">{inv.token.slice(0, 12)}...</code>
+                    </td>
+                    <td className="py-2 text-gray-500">{new Date(inv.created_at).toLocaleDateString('de-DE')}</td>
+                    <td className="py-2">
+                      {inv.used_by ? (
+                        <span className="text-green-600 font-medium">Verwendet</span>
+                      ) : (
+                        <span className="text-blue-600 font-medium">Offen</span>
+                      )}
+                    </td>
+                    <td className="py-2 text-gray-500">{inv.used_by_username || '-'}</td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          </div>
+        )}
+      </div>
+
+      <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-6">
+        <h2 className="text-lg font-semibold mb-4">Registrierte Benutzer</h2>
+        {users.length === 0 ? (
+          <p className="text-gray-400 text-sm">Keine Benutzer gefunden.</p>
+        ) : (
+          <div className="overflow-x-auto">
+            <table className="w-full text-sm">
+              <thead>
+                <tr className="border-b border-gray-200">
+                  <th className="text-left py-2 font-medium text-gray-500">Benutzername</th>
+                  <th className="text-left py-2 font-medium text-gray-500">Rolle</th>
+                  <th className="text-left py-2 font-medium text-gray-500">Registriert</th>
+                  <th className="text-right py-2 font-medium text-gray-500"></th>
+                </tr>
+              </thead>
+              <tbody>
+                {users.map(u => (
+                  <tr key={u.id} className="border-b border-gray-100">
+                    <td className="py-2 font-medium">{u.username}</td>
+                    <td className="py-2">
+                      {u.is_admin ? (
+                        <span className="bg-blue-100 text-blue-800 text-xs font-medium px-2 py-1 rounded-full">Admin</span>
+                      ) : (
+                        <span className="bg-gray-100 text-gray-600 text-xs font-medium px-2 py-1 rounded-full">User</span>
+                      )}
+                    </td>
+                    <td className="py-2 text-gray-500">{new Date(u.created_at).toLocaleDateString('de-DE')}</td>
+                    <td className="py-2 text-right">
+                      {u.id !== authUser?.id && (
+                        <button
+                          onClick={() => handleDeleteUser(u.id, u.username)}
+                          className="text-sm text-red-400 hover:text-red-600 font-medium transition-colors"
+                        >
+                          Löschen
+                        </button>
+                      )}
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

frontend/src/pages/Home.jsx

@@ -0,0 +1,91 @@
+import { useState, useEffect } from 'react';
+import { fetchRecipes, fetchCategories } from '../api';
+import RecipeCard from '../components/RecipeCard';
+
+const ALL_CATEGORIES = ['Alle', 'Frühstück', 'Hauptgericht', 'Dessert', 'Snack', 'Getränk', 'Sonstiges'];
+
+export default function Home() {
+  const [recipes, setRecipes] = useState([]);
+  const [categories, setCategories] = useState([]);
+  const [search, setSearch] = useState('');
+  const [selectedCategory, setSelectedCategory] = useState('Alle');
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    loadRecipes();
+    loadCategories();
+  }, [search, selectedCategory]);
+
+  const loadRecipes = async () => {
+    setLoading(true);
+    try {
+      const data = await fetchRecipes(search, selectedCategory);
+      setRecipes(data);
+    } catch (e) {
+      console.error('Fehler beim Laden:', e);
+    }
+    setLoading(false);
+  };
+
+  const loadCategories = async () => {
+    try {
+      const data = await fetchCategories();
+      setCategories(data);
+    } catch (e) {
+      console.error('Fehler beim Laden der Kategorien:', e);
+    }
+  };
+
+  const getCategoryCount = (cat) => {
+    if (cat === 'Alle') return categories.reduce((sum, c) => sum + c.count, 0);
+    const found = categories.find(c => c.category === cat);
+    return found ? found.count : 0;
+  };
+
+  return (
+    <div>
+      <div className="mb-6">
+        <input
+          type="text"
+          placeholder="Rezepte suchen..."
+          value={search}
+          onChange={e => setSearch(e.target.value)}
+          className="w-full px-4 py-3 border border-gray-300 rounded-xl text-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+        />
+      </div>
+
+      <div className="flex flex-wrap gap-2 mb-6">
+        {ALL_CATEGORIES.map(cat => (
+          <button
+            key={cat}
+            onClick={() => setSelectedCategory(cat)}
+            className={`px-3 py-1.5 rounded-full text-sm font-medium transition-colors ${
+              selectedCategory === cat
+                ? 'bg-blue-600 text-white'
+                : 'bg-white border border-gray-200 text-gray-600 hover:border-blue-300'
+            }`}
+          >
+            {cat} ({getCategoryCount(cat)})
+          </button>
+        ))}
+      </div>
+
+      {loading ? (
+        <div className="text-center py-12 text-gray-400">Laden...</div>
+      ) : recipes.length === 0 ? (
+        <div className="text-center py-12">
+          <p className="text-gray-400 text-lg mb-2">Keine Rezepte gefunden</p>
+          <p className="text-gray-400 text-sm">
+            Füge dein erstes Rezept über TikTok-Links hinzu!
+          </p>
+        </div>
+      ) : (
+        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4">
+          {recipes.map(recipe => (
+            <RecipeCard key={recipe.id} recipe={recipe} />
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/pages/Login.jsx

@@ -0,0 +1,90 @@
+import { useState } from 'react';
+import { loginUser as apiLogin } from '../auth';
+import { useAuth } from '../context/AuthContext';
+
+export default function Login() {
+  const [username, setUsername] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(false);
+  const { loginUser } = useAuth();
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    setError('');
+    setLoading(true);
+    try {
+      const data = await apiLogin(username, password);
+      loginUser(data.user, data.token);
+    } catch (err) {
+      setError(err.message);
+    }
+    setLoading(false);
+  };
+
+  return (
+    <div className="min-h-screen bg-gradient-to-br from-blue-50 via-white to-blue-100 flex items-center justify-center px-4">
+      <div className="w-full max-w-md">
+        <div className="text-center mb-8">
+          <div className="inline-flex items-center justify-center w-16 h-16 rounded-2xl bg-blue-600 text-white text-3xl mb-4 shadow-lg shadow-blue-600/30">
+            🍳
+          </div>
+          <h1 className="text-3xl font-bold text-gray-900">TikTok Rezepte</h1>
+          <p className="text-gray-500 mt-1">Deine Rezepte, immer griffbereit</p>
+        </div>
+
+        <div className="bg-white rounded-2xl shadow-xl shadow-blue-900/5 border border-blue-100 p-8">
+          <h2 className="text-xl font-semibold text-gray-800 mb-6">Anmelden</h2>
+
+          <form onSubmit={handleSubmit} className="space-y-4">
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">
+                Benutzername
+              </label>
+              <input
+                type="text"
+                value={username}
+                onChange={e => setUsername(e.target.value)}
+                placeholder="Benutzername eingeben"
+                required
+                className="w-full px-4 py-3 border border-gray-300 rounded-xl text-gray-900 placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-colors"
+              />
+            </div>
+
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">
+                Passwort
+              </label>
+              <input
+                type="password"
+                value={password}
+                onChange={e => setPassword(e.target.value)}
+                placeholder="Passwort eingeben"
+                required
+                className="w-full px-4 py-3 border border-gray-300 rounded-xl text-gray-900 placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-colors"
+              />
+            </div>
+
+            {error && (
+              <div className="bg-red-50 border border-red-200 text-red-700 text-sm px-4 py-3 rounded-xl">
+                {error}
+              </div>
+            )}
+
+            <button
+              type="submit"
+              disabled={loading}
+              className="w-full bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white py-3 rounded-xl font-semibold transition-colors shadow-lg shadow-blue-600/25 hover:shadow-blue-600/40"
+            >
+              {loading ? 'Laden...' : 'Anmelden'}
+            </button>
+          </form>
+
+          <p className="mt-6 text-center text-sm text-gray-400">
+            Nur für eingeladene Benutzer
+          </p>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/pages/Profile.jsx

@@ -0,0 +1,100 @@
+import { useState } from 'react';
+import { useAuth } from '../context/AuthContext';
+import { updateCredentials } from '../auth';
+
+export default function Profile() {
+  const { token, user: authUser, loginUser } = useAuth();
+  const [currentPassword, setCurrentPassword] = useState('');
+  const [newUsername, setNewUsername] = useState('');
+  const [newPassword, setNewPassword] = useState('');
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState('');
+  const [success, setSuccess] = useState('');
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    setSaving(true);
+    setError('');
+    setSuccess('');
+    try {
+      const data = await updateCredentials(token, {
+        currentPassword,
+        newUsername: newUsername || undefined,
+        newPassword: newPassword || undefined,
+      });
+      loginUser(data.user, data.token);
+      setCurrentPassword('');
+      setNewUsername('');
+      setNewPassword('');
+      setSuccess('Daten erfolgreich geändert!');
+    } catch (err) {
+      setError(err.message);
+    }
+    setSaving(false);
+  };
+
+  return (
+    <div className="max-w-lg mx-auto">
+      <h1 className="text-2xl font-bold mb-6">Profil</h1>
+
+      <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-6">
+        <p className="text-sm text-gray-500 mb-6">
+          Angemeldet als <span className="font-medium text-gray-700">{authUser?.username}</span>
+          {authUser?.is_admin && <span className="ml-2 text-xs bg-blue-100 text-blue-700 px-1.5 py-0.5 rounded-full">Admin</span>}
+        </p>
+
+        {error && (
+          <div className="bg-red-50 border border-red-200 text-red-700 text-sm px-4 py-3 rounded-xl mb-4">
+            {error}
+          </div>
+        )}
+        {success && (
+          <div className="bg-green-50 border border-green-200 text-green-700 text-sm px-4 py-3 rounded-xl mb-4">
+            {success}
+          </div>
+        )}
+
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">Aktuelles Passwort</label>
+            <input
+              type="password"
+              value={currentPassword}
+              onChange={e => setCurrentPassword(e.target.value)}
+              placeholder="Aktuelles Passwort eingeben"
+              required
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">Neuer Benutzername (optional)</label>
+            <input
+              type="text"
+              value={newUsername}
+              onChange={e => setNewUsername(e.target.value)}
+              placeholder="Neuen Benutzernamen wählen"
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">Neues Passwort (optional)</label>
+            <input
+              type="password"
+              value={newPassword}
+              onChange={e => setNewPassword(e.target.value)}
+              placeholder="Mindestens 6 Zeichen"
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
+            />
+          </div>
+          <button
+            type="submit"
+            disabled={saving}
+            className="bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white px-6 py-2 rounded-lg font-medium transition-colors"
+          >
+            {saving ? 'Speichern...' : 'Speichern'}
+          </button>
+        </form>
+      </div>
+    </div>
+  );
+}

frontend/src/pages/RecipeDetail.jsx

@@ -0,0 +1,174 @@
+import { useState, useEffect } from 'react';
+import { useParams, useNavigate, Link } from 'react-router-dom';
+import { fetchRecipe, updateRecipe, deleteRecipe } from '../api';
+import CategoryBadge from '../components/CategoryBadge';
+import IngredientList from '../components/IngredientList';
+import StepList from '../components/StepList';
+
+const CATEGORIES = ['Frühstück', 'Hauptgericht', 'Dessert', 'Snack', 'Getränk', 'Sonstiges'];
+
+export default function RecipeDetail() {
+  const { id } = useParams();
+  const navigate = useNavigate();
+  const [recipe, setRecipe] = useState(null);
+  const [loading, setLoading] = useState(true);
+  const [editing, setEditing] = useState(false);
+  const [form, setForm] = useState({});
+
+  useEffect(() => { load(); }, [id]);
+
+  const load = async () => {
+    try {
+      const data = await fetchRecipe(id);
+      setRecipe(data);
+      setForm(data);
+    } catch (e) {
+      navigate('/');
+    }
+    setLoading(false);
+  };
+
+  const handleSave = async () => {
+    await updateRecipe(id, form);
+    setRecipe(form);
+    setEditing(false);
+  };
+
+  const handleDelete = async () => {
+    if (!confirm('Rezept wirklich löschen?')) return;
+    await deleteRecipe(id);
+    navigate('/');
+  };
+
+  const updateField = (field, value) => setForm(prev => ({ ...prev, [field]: value }));
+
+  if (loading) return <div className="text-center py-12 text-gray-400">Laden...</div>;
+  if (!recipe) return null;
+
+  const videoId = recipe.tiktok_url?.match(/video\/(\d+)/)?.[1];
+
+  return (
+    <div className="max-w-2xl mx-auto">
+      <Link to="/" className="text-blue-600 hover:text-blue-700 text-sm font-medium mb-4 inline-block">
+        &larr; Zurück
+      </Link>
+
+      <div className="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden">
+        {videoId && (
+          <div className="w-full" style={{ paddingBottom: '177.78%', position: 'relative' }}>
+            <iframe
+              src={`https://www.tiktok.com/embed/v2/${videoId}`}
+              className="absolute inset-0 w-full h-full"
+              allowFullScreen
+            />
+          </div>
+        )}
+
+        <div className="p-6 space-y-6">
+          <div className="flex items-start justify-between gap-3">
+            {editing ? (
+              <input
+                type="text"
+                value={form.name}
+                onChange={e => updateField('name', e.target.value)}
+                className="text-2xl font-bold flex-1 px-2 py-1 border border-gray-300 rounded"
+              />
+            ) : (
+              <h1 className="text-2xl font-bold">{recipe.name}</h1>
+            )}
+            <CategoryBadge category={editing ? form.category : recipe.category} />
+          </div>
+
+          {editing && (
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">Kategorie</label>
+              <select
+                value={form.category}
+                onChange={e => updateField('category', e.target.value)}
+                className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm"
+              >
+                {CATEGORIES.map(c => <option key={c} value={c}>{c}</option>)}
+              </select>
+            </div>
+          )}
+
+          {!editing && recipe.description && (
+            <p className="text-gray-500">{recipe.description}</p>
+          )}
+
+          {editing && (
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">Beschreibung</label>
+              <textarea
+                value={form.description}
+                onChange={e => updateField('description', e.target.value)}
+                rows={2}
+                className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm resize-none"
+              />
+            </div>
+          )}
+
+          {editing ? (
+            <IngredientList
+              ingredients={form.ingredients}
+              editable
+              onChange={ingredients => updateField('ingredients', ingredients)}
+            />
+          ) : (
+            <IngredientList ingredients={recipe.ingredients} />
+          )}
+
+          {editing ? (
+            <StepList
+              steps={form.steps}
+              editable
+              onChange={steps => updateField('steps', steps)}
+            />
+          ) : (
+            <StepList steps={recipe.steps} />
+          )}
+
+          {recipe.tiktok_author && (
+            <p className="text-xs text-gray-400">
+              Von: @{recipe.tiktok_author}
+            </p>
+          )}
+
+          <div className="flex gap-3 pt-2 border-t border-gray-100">
+            {editing ? (
+              <>
+                <button
+                  onClick={handleSave}
+                  className="flex-1 bg-blue-600 hover:bg-blue-700 text-white py-2 rounded-lg font-medium transition-colors"
+                >
+                  Speichern
+                </button>
+                <button
+                  onClick={() => { setEditing(false); setForm(recipe); }}
+                  className="px-4 py-2 border border-gray-300 rounded-lg font-medium hover:bg-gray-50 transition-colors"
+                >
+                  Abbrechen
+                </button>
+              </>
+            ) : (
+              <>
+                <button
+                  onClick={() => setEditing(true)}
+                  className="flex-1 border border-blue-300 text-blue-600 hover:bg-blue-50 py-2 rounded-lg font-medium transition-colors"
+                >
+                  Bearbeiten
+                </button>
+                <button
+                  onClick={handleDelete}
+                  className="px-4 py-2 border border-red-300 text-red-600 hover:bg-red-50 rounded-lg font-medium transition-colors"
+                >
+                  Löschen
+                </button>
+              </>
+            )}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/pages/Register.jsx

@@ -0,0 +1,114 @@
+import { useState, useEffect } from 'react';
+import { useSearchParams } from 'react-router-dom';
+import { registerUser } from '../auth';
+import { useAuth } from '../context/AuthContext';
+
+export default function Register() {
+  const [searchParams] = useSearchParams();
+  const prefillToken = searchParams.get('invite') || '';
+  const [username, setUsername] = useState('');
+  const [password, setPassword] = useState('');
+  const [inviteToken, setInviteToken] = useState(prefillToken);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(false);
+  const { loginUser } = useAuth();
+
+  useEffect(() => {
+    if (prefillToken) setInviteToken(prefillToken);
+  }, [prefillToken]);
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    setError('');
+    setLoading(true);
+    try {
+      const data = await registerUser(username, password, inviteToken);
+      loginUser(data.user, data.token);
+    } catch (err) {
+      setError(err.message);
+    }
+    setLoading(false);
+  };
+
+  return (
+    <div className="min-h-screen bg-gradient-to-br from-blue-50 via-white to-blue-100 flex items-center justify-center px-4">
+      <div className="w-full max-w-md">
+        <div className="text-center mb-8">
+          <div className="inline-flex items-center justify-center w-16 h-16 rounded-2xl bg-blue-600 text-white text-3xl mb-4 shadow-lg shadow-blue-600/30">
+            🍳
+          </div>
+          <h1 className="text-3xl font-bold text-gray-900">TikTok Rezepte</h1>
+          <p className="text-gray-500 mt-1">Konto erstellen</p>
+        </div>
+
+        <div className="bg-white rounded-2xl shadow-xl shadow-blue-900/5 border border-blue-100 p-8">
+          <h2 className="text-xl font-semibold text-gray-800 mb-6">Registrieren</h2>
+
+          <form onSubmit={handleSubmit} className="space-y-4">
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">
+                Einladungscode
+              </label>
+              <input
+                type="text"
+                value={inviteToken}
+                onChange={e => setInviteToken(e.target.value)}
+                placeholder="Einladungscode vom Admin"
+                required
+                readOnly={!!prefillToken}
+                className="w-full px-4 py-3 border border-gray-300 rounded-xl text-gray-900 placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-colors read-only:bg-gray-50 read-only:text-gray-500"
+              />
+              {prefillToken && (
+                <p className="text-xs text-green-600 mt-1">Code aus Einladungslink übernommen</p>
+              )}
+            </div>
+
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">
+                Benutzername
+              </label>
+              <input
+                type="text"
+                value={username}
+                onChange={e => setUsername(e.target.value)}
+                placeholder="Benutzername wählen"
+                required
+                minLength={3}
+                className="w-full px-4 py-3 border border-gray-300 rounded-xl text-gray-900 placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-colors"
+              />
+            </div>
+
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">
+                Passwort
+              </label>
+              <input
+                type="password"
+                value={password}
+                onChange={e => setPassword(e.target.value)}
+                placeholder="Mindestens 6 Zeichen"
+                required
+                minLength={6}
+                className="w-full px-4 py-3 border border-gray-300 rounded-xl text-gray-900 placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-colors"
+              />
+            </div>
+
+            {error && (
+              <div className="bg-red-50 border border-red-200 text-red-700 text-sm px-4 py-3 rounded-xl">
+                {error}
+              </div>
+            )}
+
+            <button
+              type="submit"
+              disabled={loading}
+              className="w-full bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white py-3 rounded-xl font-semibold transition-colors shadow-lg shadow-blue-600/25 hover:shadow-blue-600/40"
+            >
+              {loading ? 'Laden...' : 'Registrieren'}
+            </button>
+          </form>
+        </div>
+      </div>
+    </div>
+  );
+}