diff --git a/templates/index.html b/templates/index.html
index 77d8bd4..613e36d 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -2,6 +2,7 @@
 <html lang="en">
 <head>
     <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>YouTube Concert Splitter</title>
     <style>
         body {
@@ -151,6 +152,7 @@
             border-radius: 12px;
             text-align: center;
             max-width: 400px;
+            margin: 0 20px;
         }
 
         .spinner {
@@ -232,6 +234,7 @@
             border-radius: 4px;
             font-size: 13px;
             color: #555;
+            word-break: break-word;
         }
 
         .track-list li.skipped {
@@ -250,6 +253,7 @@
             background: #e8f4f8;
             border-radius: 6px;
             border-left: 4px solid #2196F3;
+            word-break: break-all;
         }
 
         .download-info strong {
@@ -283,6 +287,138 @@
             color: #666;
             margin-top: 5px;
         }
+
+        /* Mobile Responsive Styles */
+        @media screen and (max-width: 768px) {
+            body {
+                padding: 10px;
+                align-items: flex-start;
+            }
+
+            .container {
+                padding: 20px;
+                margin: 10px 0;
+            }
+
+            h1 {
+                font-size: 24px;
+                margin-bottom: 8px;
+            }
+
+            .subtitle {
+                font-size: 13px;
+                margin-bottom: 20px;
+            }
+
+            .form-row {
+                grid-template-columns: 1fr;
+                gap: 15px;
+                margin-bottom: 15px;
+            }
+
+            label {
+                font-size: 13px;
+            }
+
+            input[type="text"],
+            textarea {
+                font-size: 16px; /* Prevents zoom on iOS */
+                padding: 10px;
+            }
+
+            textarea {
+                min-height: 150px;
+                font-size: 12px;
+            }
+
+            .help-text {
+                font-size: 11px;
+            }
+
+            button {
+                padding: 12px 20px;
+                font-size: 15px;
+            }
+
+            .loader-content {
+                padding: 30px 20px;
+                max-width: 90%;
+            }
+
+            .loader-text {
+                font-size: 16px;
+            }
+
+            .loader-subtext {
+                font-size: 13px;
+            }
+
+            .message {
+                font-size: 13px;
+                padding: 12px;
+            }
+
+            .results {
+                padding: 15px;
+            }
+
+            .results h3 {
+                font-size: 16px;
+            }
+
+            .results h4 {
+                font-size: 14px;
+            }
+
+            .stats {
+                gap: 10px;
+            }
+
+            .stat-item {
+                min-width: 80px;
+                padding: 8px;
+            }
+
+            .stat-number {
+                font-size: 20px;
+            }
+
+            .stat-label {
+                font-size: 11px;
+            }
+
+            .track-list li {
+                font-size: 12px;
+                padding: 6px;
+            }
+
+            .download-info {
+                font-size: 12px;
+                padding: 12px;
+            }
+        }
+
+        @media screen and (max-width: 480px) {
+            .container {
+                padding: 15px;
+            }
+
+            h1 {
+                font-size: 20px;
+            }
+
+            .subtitle {
+                font-size: 12px;
+            }
+
+            .stat-item {
+                min-width: 70px;
+            }
+
+            .stat-number {
+                font-size: 18px;
+            }
+        }
     </style>
 </head>
 <body>
