diff --git a/frontend/app.js b/frontend/app.js
index 2273899..f24997d 100644
--- a/frontend/app.js
+++ b/frontend/app.js
@@ -7,6 +7,10 @@ let isLoading = false;
 let hlsPlayer = null;
 let currentLoadController = null;
 let errorToastTimer = null;
+let playerMode = 'modal';
+let playerHome = null;
+let onFullscreenChange = null;
+let onWebkitEndFullscreen = null;
 
 // 2. Observer Definition (Must be defined before initApp uses it)
 const observer = new IntersectionObserver((entries) => {
@@ -178,6 +182,25 @@ function formatDuration(seconds) {
     return `${minutes}m`;
 }
 
+function isMobilePlayback() {
+    if (navigator.userAgentData && typeof navigator.userAgentData.mobile === 'boolean') {
+        return navigator.userAgentData.mobile;
+    }
+    const ua = navigator.userAgent || '';
+    if (/iPhone|iPad|iPod|Android/i.test(ua)) return true;
+    return window.matchMedia('(pointer: coarse)').matches && window.matchMedia('(max-width: 900px)').matches;
+}
+
+function getMobileVideoHost() {
+    let host = document.getElementById('mobile-video-host');
+    if (!host) {
+        host = document.createElement('div');
+        host.id = 'mobile-video-host';
+        document.body.appendChild(host);
+    }
+    return host;
+}
+
 // 4. Initialization (Run this last)
 async function initApp() {
     // Clear old data if you want a fresh start every refresh
@@ -238,6 +261,12 @@ function showError(message) {
 async function openPlayer(url) {
     const modal = document.getElementById('video-modal');
     const video = document.getElementById('player');
+    const useMobileFullscreen = isMobilePlayback();
+    let playbackStarted = false;
+
+    if (!playerHome) {
+        playerHome = video.parentElement;
+    }
 
     // 1. Define isHls (the missing piece!)
     let refererParam = '';
@@ -275,14 +304,65 @@ async function openPlayer(url) {
         }
     }
 
+    if (useMobileFullscreen) {
+        const host = getMobileVideoHost();
+        if (video.parentElement !== host) {
+            host.appendChild(video);
+        }
+        playerMode = 'mobile';
+        video.removeAttribute('playsinline');
+        video.removeAttribute('webkit-playsinline');
+        video.playsInline = false;
+    } else {
+        if (playerHome && video.parentElement !== playerHome) {
+            playerHome.appendChild(video);
+        }
+        playerMode = 'modal';
+        video.setAttribute('playsinline', '');
+        video.setAttribute('webkit-playsinline', '');
+        video.playsInline = true;
+    }
+
+    const requestFullscreen = () => {
+        if (playerMode !== 'mobile') return;
+        if (typeof video.webkitEnterFullscreen === 'function') {
+            try {
+                video.webkitEnterFullscreen();
+            } catch (err) {
+                // Ignore if fullscreen is not allowed.
+            }
+            return;
+        }
+        if (video.requestFullscreen) {
+            video.requestFullscreen().catch(() => {});
+        }
+    };
+
+    const startPlayback = () => {
+        if (playbackStarted) return;
+        playbackStarted = true;
+        const playPromise = video.play();
+        if (playPromise && typeof playPromise.catch === 'function') {
+            playPromise.catch(() => {});
+        }
+        if (playerMode === 'mobile') {
+            if (video.readyState >= 1) {
+                requestFullscreen();
+            } else {
+                video.addEventListener('loadedmetadata', requestFullscreen, { once: true });
+            }
+        }
+    };
+
     if (isHls) {
         if (window.Hls && window.Hls.isSupported()) {
             hlsPlayer = new window.Hls();
             hlsPlayer.loadSource(streamUrl);
             hlsPlayer.attachMedia(video);
             hlsPlayer.on(window.Hls.Events.MANIFEST_PARSED, function() {
-                video.play();
+                startPlayback();
             });
+            startPlayback();
             hlsPlayer.on(window.Hls.Events.ERROR, function(event, data) {
                 if (data && data.fatal) {
                     showError('Unable to play this stream.');
@@ -291,6 +371,7 @@ async function openPlayer(url) {
             });
         } else if (video.canPlayType('application/vnd.apple.mpegurl')) {
             video.src = streamUrl;
+            startPlayback();
         } else {
             console.error("HLS not supported in this browser.");
             showError('HLS is not supported in this browser.');
@@ -298,6 +379,7 @@ async function openPlayer(url) {
         }
     } else {
         video.src = streamUrl;
+        startPlayback();
     }
 
     video.onerror = () => {
@@ -305,8 +387,29 @@ async function openPlayer(url) {
         closePlayer();
     };
 
-    modal.style.display = 'flex';
-    document.body.style.overflow = 'hidden';
+    if (playerMode === 'modal') {
+        modal.style.display = 'flex';
+        document.body.style.overflow = 'hidden';
+    } else {
+        modal.style.display = 'none';
+        document.body.style.overflow = 'auto';
+        if (!onFullscreenChange) {
+            onFullscreenChange = () => {
+                if (playerMode === 'mobile' && !document.fullscreenElement) {
+                    closePlayer();
+                }
+            };
+        }
+        document.addEventListener('fullscreenchange', onFullscreenChange);
+        if (!onWebkitEndFullscreen) {
+            onWebkitEndFullscreen = () => {
+                if (playerMode === 'mobile') {
+                    closePlayer();
+                }
+            };
+        }
+        video.addEventListener('webkitendfullscreen', onWebkitEndFullscreen);
+    }
 }
 
 function closePlayer() {
@@ -316,11 +419,24 @@ function closePlayer() {
         hlsPlayer.destroy();
         hlsPlayer = null;
     }
+    if (document.fullscreenElement && document.exitFullscreen) {
+        document.exitFullscreen().catch(() => {});
+    }
+    if (onFullscreenChange) {
+        document.removeEventListener('fullscreenchange', onFullscreenChange);
+    }
+    if (onWebkitEndFullscreen) {
+        video.removeEventListener('webkitendfullscreen', onWebkitEndFullscreen);
+    }
     video.onerror = null;
     video.pause();
     video.src = '';
     modal.style.display = 'none';
     document.body.style.overflow = 'auto';
+    if (playerHome && video.parentElement !== playerHome) {
+        playerHome.appendChild(video);
+    }
+    playerMode = 'modal';
 }
 
 function handleSearch(value) {
diff --git a/frontend/style.css b/frontend/style.css
index 8914265..1d9a9ca 100644
--- a/frontend/style.css
+++ b/frontend/style.css
@@ -768,6 +768,15 @@ video {
     object-fit: contain;
 }
 
+#mobile-video-host {
+    position: fixed;
+    left: -9999px;
+    top: 0;
+    width: 1px;
+    height: 1px;
+    overflow: hidden;
+}
+
 .error-toast {
     position: fixed;
     right: 20px;