diff --git a/.gitignore b/.gitignore
index c43fb26..3980cdb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 config.json
-.DS_Store
-GridTV Beta.sublime-project
\ No newline at end of file
+.DS_Store
\ No newline at end of file
diff --git a/assets/apple-touch-icon.png b/assets/apple-touch-icon.png
new file mode 100644
index 0000000..e17f1e0
Binary files /dev/null and b/assets/apple-touch-icon.png differ
diff --git a/assets/favicon.png b/assets/favicon.png
new file mode 100644
index 0000000..59c89d8
Binary files /dev/null and b/assets/favicon.png differ
diff --git a/assets/icon-192.png b/assets/icon-192.png
new file mode 100644
index 0000000..c2197a2
Binary files /dev/null and b/assets/icon-192.png differ
diff --git a/assets/icon-512.png b/assets/icon-512.png
new file mode 100644
index 0000000..5dc7085
Binary files /dev/null and b/assets/icon-512.png differ
diff --git a/assets/icon.png b/assets/icon.png
new file mode 100644
index 0000000..27d7178
Binary files /dev/null and b/assets/icon.png differ
diff --git a/favicon.ico b/favicon.ico
new file mode 100644
index 0000000..95ff786
Binary files /dev/null and b/favicon.ico differ
diff --git a/manifest.json b/manifest.json
new file mode 100644
index 0000000..d1563ec
--- /dev/null
+++ b/manifest.json
@@ -0,0 +1,24 @@
+{
+  "name": "GridTV",
+  "short_name": "GridTV",
+  "description": "Self-hosted IPTV TV guide",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#0a0b0d",
+  "theme_color": "#0a0b0d",
+  "orientation": "any",
+  "icons": [
+    {
+      "src": "assets/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any maskable"
+    },
+    {
+      "src": "assets/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any maskable"
+    }
+  ]
+}
diff --git a/src/css/mobile.css b/src/css/mobile.css
index d36bdfb..5391a63 100644
--- a/src/css/mobile.css
+++ b/src/css/mobile.css
@@ -189,3 +189,22 @@
     padding: 8px 18px;
     cursor: pointer;
   }
+
+@media (max-width: 600px) {
+    html, body { height: 100%; overflow: hidden; }
+    body { overflow: hidden; }
+
+    .topbar {
+      height: auto;
+      flex-wrap: wrap;
+      padding: 8px 12px;
+      gap: 8px;
+    }
+    .logo { font-size: 11px; }
+    .clock { font-size: 14px; }
+
+    .grid-wrapper { display: none; }
+    .mobile-view { display: block; }
+    .tooltip { display: none !important; }
+    #navBtns { display: none !important; }
+  }
diff --git a/src/css/topbar.css b/src/css/topbar.css
index a314444..e33eff1 100644
--- a/src/css/topbar.css
+++ b/src/css/topbar.css
@@ -148,9 +148,7 @@
   .theme-select:hover { border-color: var(--accent2); color: var(--accent2); }
   .theme-select option { background: #111; color: #eee; font-family: sans-serif; }
 
-  @media (max-width: 600px) {
-    html, body { height: 100%; overflow: hidden; }
-    body { overflow: hidden; }
+      body { overflow: hidden; }
 
     .topbar {
       height: auto;
diff --git a/src/tpl/footer.php b/src/tpl/footer.php
index 3962be4..f7d5605 100644
--- a/src/tpl/footer.php
+++ b/src/tpl/footer.php
@@ -9,5 +9,13 @@ foreach ($js_modules as $mod) {
 }
 ?>
 </script>
+
+<script>
+if ('serviceWorker' in navigator) {
+  window.addEventListener('load', () => {
+    navigator.serviceWorker.register('/sw.js').catch(() => {});
+  });
+}
+</script>
 </body>
 </html>
diff --git a/src/tpl/head.php b/src/tpl/head.php
index 6ca2685..6e1ea29 100644
--- a/src/tpl/head.php
+++ b/src/tpl/head.php
@@ -4,10 +4,18 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>GridTV — <?= $group_name ?></title>
+<link rel="manifest" href="/manifest.json">
+<link rel="icon" href="/assets/favicon.png" type="image/png">
+<link rel="apple-touch-icon" href="/assets/apple-touch-icon.png">
+<meta name="theme-color" content="#0a0b0d">
+<meta name="mobile-web-app-capable" content="yes">
+<meta name="apple-mobile-web-app-capable" content="yes">
+<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
+<meta name="apple-mobile-web-app-title" content="GridTV">
 <link href="https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Barlow+Condensed:wght@300;400;600;700&display=swap" rel="stylesheet">
 <?php
 $css_dir = __DIR__ . '/../css/';
-$css_files = ['base', 'topbar', 'grid', 'mobile', 'player', 'modals', 'search', 'program', 'favorites', 'updater'];
+$css_files = ['base', 'grid', 'mobile', 'topbar', 'player', 'modals', 'search', 'program', 'favorites', 'updater'];
 echo "<style>\n";
 foreach ($css_files as $file) {
     echo file_get_contents($css_dir . $file . '.css') . "\n";
diff --git a/sw.js b/sw.js
new file mode 100644
index 0000000..f5ea5fc
--- /dev/null
+++ b/sw.js
@@ -0,0 +1,76 @@
+const CACHE_NAME = 'gridtv-v1';
+
+// Ressources statiques à mettre en cache immédiatement
+const STATIC_ASSETS = [
+  '/',
+  '/index.php',
+  '/manifest.json',
+  '/assets/icon-192.png',
+  '/assets/icon-512.png',
+  'https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Barlow+Condensed:wght@300;400;600;700&display=swap',
+  'https://cdnjs.cloudflare.com/ajax/libs/hls.js/1.4.12/hls.min.js'
+];
+
+// Install : mise en cache des assets statiques
+self.addEventListener('install', e => {
+  e.waitUntil(
+    caches.open(CACHE_NAME)
+      .then(cache => cache.addAll(STATIC_ASSETS))
+      .then(() => self.skipWaiting())
+  );
+});
+
+// Activate : purger les anciens caches
+self.addEventListener('activate', e => {
+  e.waitUntil(
+    caches.keys().then(keys =>
+      Promise.all(keys.filter(k => k !== CACHE_NAME).map(k => caches.delete(k)))
+    ).then(() => self.clients.claim())
+  );
+});
+
+// Fetch : stratégie selon le type de ressource
+self.addEventListener('fetch', e => {
+  const url = new URL(e.request.url);
+
+  // Flux EPG/M3U et API GitHub : network only (pas de cache)
+  if (
+    url.pathname.includes('xmltv') ||
+    url.pathname.includes('.m3u') ||
+    url.hostname === 'api.github.com' ||
+    url.pathname.includes('proxy.php')
+  ) {
+    return;
+  }
+
+  // Assets statiques : cache first
+  if (
+    e.request.destination === 'style' ||
+    e.request.destination === 'script' ||
+    e.request.destination === 'font' ||
+    e.request.destination === 'image' ||
+    url.pathname.endsWith('.json') ||
+    url.pathname.endsWith('.css') ||
+    url.pathname.endsWith('.js')
+  ) {
+    e.respondWith(
+      caches.match(e.request).then(cached => cached || fetch(e.request).then(res => {
+        const clone = res.clone();
+        caches.open(CACHE_NAME).then(cache => cache.put(e.request, clone));
+        return res;
+      }))
+    );
+    return;
+  }
+
+  // Pages PHP (index.php) : network first, fallback cache
+  e.respondWith(
+    fetch(e.request)
+      .then(res => {
+        const clone = res.clone();
+        caches.open(CACHE_NAME).then(cache => cache.put(e.request, clone));
+        return res;
+      })
+      .catch(() => caches.match(e.request))
+  );
+});