diff --git a/app/globals.css b/app/globals.css
index ac68442..845aae8 100644
--- a/app/globals.css
+++ b/app/globals.css
@@ -2,10 +2,6 @@
 @tailwind components;
 @tailwind utilities;
 
-body {
-  font-family: Arial, Helvetica, sans-serif;
-}
-
 @layer utilities {
   .text-balance {
     text-wrap: balance;
@@ -14,73 +10,31 @@ body {
 
 @layer base {
   :root {
-    --background: 0 0% 100%;
-    --foreground: 0 0% 3.9%;
-    --card: 0 0% 100%;
-    --card-foreground: 0 0% 3.9%;
-    --popover: 0 0% 100%;
-    --popover-foreground: 0 0% 3.9%;
-    --primary: 0 0% 9%;
-    --primary-foreground: 0 0% 98%;
-    --secondary: 0 0% 96.1%;
-    --secondary-foreground: 0 0% 9%;
-    --muted: 0 0% 96.1%;
-    --muted-foreground: 0 0% 45.1%;
-    --accent: 0 0% 96.1%;
-    --accent-foreground: 0 0% 9%;
-    --destructive: 0 84.2% 60.2%;
-    --destructive-foreground: 0 0% 98%;
-    --border: 0 0% 89.8%;
-    --input: 0 0% 89.8%;
-    --ring: 0 0% 3.9%;
-    --chart-1: 12 76% 61%;
+    --background: 220 20% 7%;
+    --foreground: 210 20% 95%;
+    --card: 220 18% 10%;
+    --card-foreground: 210 20% 95%;
+    --popover: 220 18% 10%;
+    --popover-foreground: 210 20% 95%;
+    --primary: 24 100% 55%;
+    --primary-foreground: 220 20% 7%;
+    --secondary: 220 15% 16%;
+    --secondary-foreground: 210 20% 90%;
+    --muted: 220 15% 14%;
+    --muted-foreground: 215 15% 55%;
+    --accent: 24 80% 50%;
+    --accent-foreground: 220 20% 7%;
+    --destructive: 0 72% 51%;
+    --destructive-foreground: 210 20% 95%;
+    --border: 220 15% 18%;
+    --input: 220 15% 18%;
+    --ring: 24 100% 55%;
+    --chart-1: 24 100% 55%;
     --chart-2: 173 58% 39%;
     --chart-3: 197 37% 24%;
     --chart-4: 43 74% 66%;
     --chart-5: 27 87% 67%;
-    --radius: 0.5rem;
-    --sidebar-background: 0 0% 98%;
-    --sidebar-foreground: 240 5.3% 26.1%;
-    --sidebar-primary: 240 5.9% 10%;
-    --sidebar-primary-foreground: 0 0% 98%;
-    --sidebar-accent: 240 4.8% 95.9%;
-    --sidebar-accent-foreground: 240 5.9% 10%;
-    --sidebar-border: 220 13% 91%;
-    --sidebar-ring: 217.2 91.2% 59.8%;
-  }
-  .dark {
-    --background: 0 0% 3.9%;
-    --foreground: 0 0% 98%;
-    --card: 0 0% 3.9%;
-    --card-foreground: 0 0% 98%;
-    --popover: 0 0% 3.9%;
-    --popover-foreground: 0 0% 98%;
-    --primary: 0 0% 98%;
-    --primary-foreground: 0 0% 9%;
-    --secondary: 0 0% 14.9%;
-    --secondary-foreground: 0 0% 98%;
-    --muted: 0 0% 14.9%;
-    --muted-foreground: 0 0% 63.9%;
-    --accent: 0 0% 14.9%;
-    --accent-foreground: 0 0% 98%;
-    --destructive: 0 62.8% 30.6%;
-    --destructive-foreground: 0 0% 98%;
-    --border: 0 0% 14.9%;
-    --input: 0 0% 14.9%;
-    --ring: 0 0% 83.1%;
-    --chart-1: 220 70% 50%;
-    --chart-2: 160 60% 45%;
-    --chart-3: 30 80% 55%;
-    --chart-4: 280 65% 60%;
-    --chart-5: 340 75% 55%;
-    --sidebar-background: 240 5.9% 10%;
-    --sidebar-foreground: 240 4.8% 95.9%;
-    --sidebar-primary: 224.3 76.3% 48%;
-    --sidebar-primary-foreground: 0 0% 100%;
-    --sidebar-accent: 240 3.7% 15.9%;
-    --sidebar-accent-foreground: 240 4.8% 95.9%;
-    --sidebar-border: 240 3.7% 15.9%;
-    --sidebar-ring: 217.2 91.2% 59.8%;
+    --radius: 0.75rem;
   }
 }
 
@@ -92,3 +46,25 @@ body {
     @apply bg-background text-foreground;
   }
 }
+
+/* Smooth scrolling */
+html {
+  scroll-behavior: smooth;
+  -webkit-tap-highlight-color: transparent;
+}
+
+/* Hide scrollbar for mobile app feel */
+.hide-scrollbar::-webkit-scrollbar {
+  display: none;
+}
+.hide-scrollbar {
+  -ms-overflow-style: none;
+  scrollbar-width: none;
+}
+
+/* Safe area for PWA */
+@supports(padding: max(0px)) {
+  .safe-bottom {
+    padding-bottom: max(1rem, env(safe-area-inset-bottom));
+  }
+}
diff --git a/app/layout.tsx b/app/layout.tsx
index fd10913..8c3207a 100644
--- a/app/layout.tsx
+++ b/app/layout.tsx
@@ -1,15 +1,33 @@
-import type { Metadata } from 'next'
-import { Geist, Geist_Mono } from 'next/font/google'
+import React from "react"
+import type { Metadata, Viewport } from "next"
+import { Inter, Space_Grotesk } from "next/font/google"
 
-import './globals.css'
+import "./globals.css"
 
-const _geist = Geist({ subsets: ['latin'] })
-const _geistMono = Geist_Mono({ subsets: ['latin'] })
+const inter = Inter({ subsets: ["latin"], variable: "--font-inter" })
+const spaceGrotesk = Space_Grotesk({
+  subsets: ["latin"],
+  variable: "--font-space-grotesk",
+})
 
 export const metadata: Metadata = {
-  title: 'v0 App',
-  description: 'Created with v0',
-  generator: 'v0.app',
+  title: "InFocus - Familienfilm-Tagebuch",
+  description:
+    "Teile deine Filmerlebnisse mit deiner Familie. Bewerte, logge und entdecke Filme zusammen.",
+  manifest: "/manifest.json",
+  appleWebApp: {
+    capable: true,
+    statusBarStyle: "black-translucent",
+    title: "InFocus",
+  },
+}
+
+export const viewport: Viewport = {
+  themeColor: "#111318",
+  width: "device-width",
+  initialScale: 1,
+  maximumScale: 1,
+  userScalable: false,
 }
 
 export default function RootLayout({
@@ -18,8 +36,12 @@ export default function RootLayout({
   children: React.ReactNode
 }>) {
   return (
-    <html lang="en">
-      <body className="font-sans antialiased">{children}</body>
+    <html lang="de">
+      <body
+        className={`${inter.variable} ${spaceGrotesk.variable} font-sans antialiased`}
+      >
+        {children}
+      </body>
     </html>
   )
 }
diff --git a/lib/supabase/client.ts b/lib/supabase/client.ts
new file mode 100644
index 0000000..c48a435
--- /dev/null
+++ b/lib/supabase/client.ts
@@ -0,0 +1,8 @@
+import { createBrowserClient } from '@supabase/ssr'
+
+export function createClient() {
+  return createBrowserClient(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
+  )
+}
diff --git a/lib/supabase/middleware.ts b/lib/supabase/middleware.ts
new file mode 100644
index 0000000..874d983
--- /dev/null
+++ b/lib/supabase/middleware.ts
@@ -0,0 +1,62 @@
+import { createServerClient } from '@supabase/ssr'
+import { NextResponse, type NextRequest } from 'next/server'
+
+export async function updateSession(request: NextRequest) {
+  let supabaseResponse = NextResponse.next({
+    request,
+  })
+
+  const supabase = createServerClient(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
+    {
+      cookies: {
+        getAll() {
+          return request.cookies.getAll()
+        },
+        setAll(cookiesToSet) {
+          cookiesToSet.forEach(({ name, value }) =>
+            request.cookies.set(name, value),
+          )
+          supabaseResponse = NextResponse.next({
+            request,
+          })
+          cookiesToSet.forEach(({ name, value, options }) =>
+            supabaseResponse.cookies.set(name, value, options),
+          )
+        },
+      },
+    },
+  )
+
+  const {
+    data: { user },
+  } = await supabase.auth.getUser()
+
+  // Redirect unauthenticated users trying to access the app
+  const isAuthRoute = request.nextUrl.pathname.startsWith('/auth')
+  const isApiRoute = request.nextUrl.pathname.startsWith('/api')
+  const isPublicRoute = request.nextUrl.pathname === '/'
+
+  if (!user && !isAuthRoute && !isApiRoute && !isPublicRoute) {
+    const url = request.nextUrl.clone()
+    url.pathname = '/auth/login'
+    return NextResponse.redirect(url)
+  }
+
+  // Redirect authenticated users away from auth pages to the feed
+  if (user && isAuthRoute) {
+    const url = request.nextUrl.clone()
+    url.pathname = '/feed'
+    return NextResponse.redirect(url)
+  }
+
+  // Redirect root to feed if authenticated
+  if (user && isPublicRoute) {
+    const url = request.nextUrl.clone()
+    url.pathname = '/feed'
+    return NextResponse.redirect(url)
+  }
+
+  return supabaseResponse
+}
diff --git a/lib/supabase/server.ts b/lib/supabase/server.ts
new file mode 100644
index 0000000..e60931a
--- /dev/null
+++ b/lib/supabase/server.ts
@@ -0,0 +1,29 @@
+import { createServerClient } from '@supabase/ssr'
+import { cookies } from 'next/headers'
+
+export async function createClient() {
+  const cookieStore = await cookies()
+
+  return createServerClient(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
+    {
+      cookies: {
+        getAll() {
+          return cookieStore.getAll()
+        },
+        setAll(cookiesToSet) {
+          try {
+            cookiesToSet.forEach(({ name, value, options }) =>
+              cookieStore.set(name, value, options),
+            )
+          } catch {
+            // The "setAll" method was called from a Server Component.
+            // This can be ignored if you have middleware refreshing
+            // user sessions.
+          }
+        },
+      },
+    },
+  )
+}
diff --git a/lib/tmdb.ts b/lib/tmdb.ts
new file mode 100644
index 0000000..25c41c2
--- /dev/null
+++ b/lib/tmdb.ts
@@ -0,0 +1,64 @@
+const TMDB_BASE = 'https://api.themoviedb.org/3'
+const TMDB_IMAGE_BASE = 'https://image.tmdb.org/t/p'
+
+export function posterUrl(path: string | null, size: 'w185' | 'w342' | 'w500' | 'original' = 'w342') {
+  if (!path) return null
+  return `${TMDB_IMAGE_BASE}/${size}${path}`
+}
+
+export function backdropUrl(path: string | null, size: 'w780' | 'w1280' | 'original' = 'w1280') {
+  if (!path) return null
+  return `${TMDB_IMAGE_BASE}/${size}${path}`
+}
+
+async function tmdbFetch(endpoint: string, params: Record<string, string> = {}) {
+  const url = new URL(`${TMDB_BASE}${endpoint}`)
+  url.searchParams.set('api_key', process.env.TMDB_API_KEY!)
+  url.searchParams.set('language', 'de-DE')
+  for (const [key, value] of Object.entries(params)) {
+    url.searchParams.set(key, value)
+  }
+  const res = await fetch(url.toString(), { next: { revalidate: 3600 } })
+  if (!res.ok) throw new Error(`TMDB error: ${res.status}`)
+  return res.json()
+}
+
+export async function searchMovies(query: string, page = 1) {
+  return tmdbFetch('/search/movie', { query, page: String(page) })
+}
+
+export async function getMovie(id: number) {
+  return tmdbFetch(`/movie/${id}`)
+}
+
+export async function getTrending() {
+  return tmdbFetch('/trending/movie/week')
+}
+
+export async function getPopular(page = 1) {
+  return tmdbFetch('/movie/popular', { page: String(page) })
+}
+
+export interface TMDBMovie {
+  id: number
+  title: string
+  poster_path: string | null
+  backdrop_path: string | null
+  overview: string
+  release_date: string
+  vote_average: number
+  genre_ids?: number[]
+}
+
+export interface TMDBSearchResult {
+  page: number
+  results: TMDBMovie[]
+  total_pages: number
+  total_results: number
+}
+
+export interface TMDBMovieDetail extends TMDBMovie {
+  runtime: number
+  genres: { id: number; name: string }[]
+  tagline: string
+}
diff --git a/middleware.ts b/middleware.ts
new file mode 100644
index 0000000..1c4e535
--- /dev/null
+++ b/middleware.ts
@@ -0,0 +1,12 @@
+import { updateSession } from '@/lib/supabase/middleware'
+import { type NextRequest } from 'next/server'
+
+export async function middleware(request: NextRequest) {
+  return await updateSession(request)
+}
+
+export const config = {
+  matcher: [
+    '/((?!_next/static|_next/image|favicon.ico|manifest.json|icons/.*|.*\\.(?:svg|png|jpg|jpeg|gif|webp)$).*)',
+  ],
+}
diff --git a/next.config.mjs b/next.config.mjs
index 4cd9948..8d41b18 100644
--- a/next.config.mjs
+++ b/next.config.mjs
@@ -5,6 +5,13 @@ const nextConfig = {
   },
   images: {
     unoptimized: true,
+    remotePatterns: [
+      {
+        protocol: "https",
+        hostname: "image.tmdb.org",
+        pathname: "/t/p/**",
+      },
+    ],
   },
 }
 
diff --git a/package.json b/package.json
index 33f94f3..f71293e 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,9 @@
     "lint": "eslint ."
   },
   "dependencies": {
+    "@supabase/ssr": "^0.5.2",
+    "@supabase/supabase-js": "^2.47.12",
+    "swr": "^2.2.5",
     "@hookform/resolvers": "^3.9.1",
     "@radix-ui/react-accordion": "1.2.2",
     "@radix-ui/react-alert-dialog": "1.1.4",
@@ -68,4 +71,4 @@
     "tailwindcss": "^3.4.17",
     "typescript": "5.7.3"
   }
-}
\ No newline at end of file
+}
diff --git a/public/manifest.json b/public/manifest.json
new file mode 100644
index 0000000..fcdc82b
--- /dev/null
+++ b/public/manifest.json
@@ -0,0 +1,22 @@
+{
+  "name": "InFocus - Familienfilm-Tagebuch",
+  "short_name": "InFocus",
+  "description": "Teile deine Filmerlebnisse mit deiner Familie",
+  "start_url": "/feed",
+  "display": "standalone",
+  "background_color": "#111318",
+  "theme_color": "#111318",
+  "orientation": "portrait-primary",
+  "icons": [
+    {
+      "src": "/icons/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/icons/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ]
+}
diff --git a/tailwind.config.ts b/tailwind.config.ts
index f9ffe6b..b6c9361 100644
--- a/tailwind.config.ts
+++ b/tailwind.config.ts
@@ -10,6 +10,10 @@ const config: Config = {
   ],
   theme: {
     extend: {
+      fontFamily: {
+        sans: ['var(--font-inter)', 'system-ui', 'sans-serif'],
+        heading: ['var(--font-space-grotesk)', 'system-ui', 'sans-serif'],
+      },
       colors: {
         background: 'hsl(var(--background))',
         foreground: 'hsl(var(--foreground))',