diff --git a/index.html b/index.html
index fcbc59e..f8adac2 100644
--- a/index.html
+++ b/index.html
@@ -132,7 +132,10 @@
             border-radius: 8px;
             padding: 30px;
             z-index: 1000;
-            max-width: 500px;
+            max-width: 90vw;
+            width: 800px;
+            max-height: 80vh;
+            overflow-y: auto;
             display: none;
         }
         
@@ -140,16 +143,26 @@
             margin-bottom: 20px;
             color: #fff;
             font-size: 18px;
+            text-align: center;
+        }
+        
+        .help-content {
+            display: grid;
+            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+            gap: 30px;
+            margin-top: 20px;
         }
         
         #help-popup .help-section {
-            margin-bottom: 20px;
+            margin-bottom: 0;
         }
         
         #help-popup .help-section h4 {
             color: #ccc;
             margin-bottom: 10px;
             font-size: 14px;
+            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+            padding-bottom: 5px;
         }
         
         #help-popup .help-section p {
@@ -383,6 +396,125 @@
             z-index: 1001;
             display: none;
         }
+        
+        /* Responsive Design */
+        @media (max-width: 768px) {
+            #topbar {
+                flex-wrap: wrap;
+                height: auto;
+                padding: 10px;
+            }
+            
+            #topbar .title {
+                margin-right: 10px;
+                margin-bottom: 5px;
+            }
+            
+            #topbar .controls {
+                flex-wrap: wrap;
+                gap: 5px;
+                margin-left: 0;
+            }
+            
+            #topbar button {
+                padding: 4px 8px;
+                font-size: 11px;
+            }
+            
+            #topbar label {
+                font-size: 11px !important;
+                margin-right: 5px !important;
+            }
+            
+            #topbar select {
+                padding: 2px !important;
+                font-size: 11px !important;
+            }
+            
+            #help-popup {
+                width: 95vw;
+                max-width: 95vw;
+                max-height: 90vh;
+                padding: 20px;
+            }
+            
+            .help-content {
+                grid-template-columns: 1fr;
+                gap: 20px;
+            }
+            
+            #editor-panel {
+                height: 120px;
+            }
+            
+            #editor {
+                font-size: 14px;
+                padding: 10px;
+            }
+            
+            #shader-library {
+                width: 100%;
+                right: -100%;
+            }
+            
+            #shader-library-trigger {
+                width: 30px;
+            }
+        }
+        
+        @media (max-width: 480px) {
+            #topbar {
+                padding: 5px;
+            }
+            
+            #topbar .title {
+                font-size: 12px;
+            }
+            
+            #topbar button {
+                padding: 3px 6px;
+                font-size: 10px;
+            }
+            
+            #topbar label {
+                font-size: 10px !important;
+            }
+            
+            #topbar select {
+                font-size: 10px !important;
+            }
+            
+            #help-popup {
+                padding: 15px;
+            }
+            
+            #help-popup h3 {
+                font-size: 16px;
+            }
+            
+            #help-popup .help-section h4 {
+                font-size: 13px;
+            }
+            
+            #help-popup .help-section p {
+                font-size: 11px;
+            }
+            
+            #editor-panel {
+                height: 100px;
+            }
+            
+            #editor {
+                font-size: 12px;
+                padding: 8px;
+            }
+        }
+        
+        @media (min-width: 1200px) {
+            .help-content {
+                grid-template-columns: repeat(3, 1fr);
+            }
+        }
     </style>
 </head>
 <body>
@@ -457,50 +589,52 @@
         <button class="close-btn">&times;</button>
         <h3>Bitfielder Help</h3>
         
-        <div class="help-section">
-            <h4>Keyboard Shortcuts</h4>
-            <p><strong>Ctrl+Enter</strong> - Execute shader code</p>
-            <p><strong>F11</strong> - Toggle fullscreen</p>
-            <p><strong>H</strong> - Hide/show UI</p>
-            <p><strong>R</strong> - Generate random shader</p>
-            <p><strong>S</strong> - Share current shader (copy URL)</p>
-            <p><strong>?</strong> - Show this help</p>
-        </div>
-        
-        <div class="help-section">
-            <h4>Shader Library</h4>
-            <p>Hover over the <strong>right edge</strong> of the screen to access the shader library</p>
-            <p>Save shaders with custom names and search through them</p>
-            <p>Use <strong>edit</strong> to rename, <strong>del</strong> to delete</p>
-        </div>
-        
-        <div class="help-section">
-            <h4>Variables</h4>
-            <p><strong>x, y</strong> - Pixel coordinates</p>
-            <p><strong>t</strong> - Time (enables animation)</p>
-            <p><strong>i</strong> - Pixel index</p>
-            <p><strong>mouseX, mouseY</strong> - Mouse position (0.0 to 1.0)</p>
-        </div>
-        
-        <div class="help-section">
-            <h4>Operators</h4>
-            <p><strong>^ & |</strong> - XOR, AND, OR</p>
-            <p><strong>&lt;&lt; &gt;&gt;</strong> - Bit shift left/right</p>
-            <p><strong>+ - * / %</strong> - Math operations</p>
-        </div>
-        
-        <div class="help-section">
-            <h4>Render Modes</h4>
-            <p><strong>Classic</strong> - Original colorful mode</p>
-            <p><strong>Grayscale</strong> - Black and white</p>
-            <p><strong>Red/Green/Blue</strong> - Single color channels</p>
-            <p><strong>HSV</strong> - Hue-based coloring</p>
-            <p><strong>Rainbow</strong> - Spectrum coloring</p>
-        </div>
-        
-        <div class="help-section">
-            <h4>Export</h4>
-            <p><strong>Export PNG</strong> - Save current frame as image</p>
+        <div class="help-content">
+            <div class="help-section">
+                <h4>Keyboard Shortcuts</h4>
+                <p><strong>Ctrl+Enter</strong> - Execute shader code</p>
+                <p><strong>F11</strong> - Toggle fullscreen</p>
+                <p><strong>H</strong> - Hide/show UI</p>
+                <p><strong>R</strong> - Generate random shader</p>
+                <p><strong>S</strong> - Share current shader (copy URL)</p>
+                <p><strong>?</strong> - Show this help</p>
+            </div>
+            
+            <div class="help-section">
+                <h4>Variables</h4>
+                <p><strong>x, y</strong> - Pixel coordinates</p>
+                <p><strong>t</strong> - Time (enables animation)</p>
+                <p><strong>i</strong> - Pixel index</p>
+                <p><strong>mouseX, mouseY</strong> - Mouse position (0.0 to 1.0)</p>
+            </div>
+            
+            <div class="help-section">
+                <h4>Operators</h4>
+                <p><strong>^ & |</strong> - XOR, AND, OR</p>
+                <p><strong>&lt;&lt; &gt;&gt;</strong> - Bit shift left/right</p>
+                <p><strong>+ - * / %</strong> - Math operations</p>
+            </div>
+            
+            <div class="help-section">
+                <h4>Shader Library</h4>
+                <p>Hover over the <strong>right edge</strong> of the screen to access the shader library</p>
+                <p>Save shaders with custom names and search through them</p>
+                <p>Use <strong>edit</strong> to rename, <strong>del</strong> to delete</p>
+            </div>
+            
+            <div class="help-section">
+                <h4>Render Modes</h4>
+                <p><strong>Classic</strong> - Original colorful mode</p>
+                <p><strong>Grayscale</strong> - Black and white</p>
+                <p><strong>Red/Green/Blue</strong> - Single color channels</p>
+                <p><strong>HSV</strong> - Hue-based coloring</p>
+                <p><strong>Rainbow</strong> - Spectrum coloring</p>
+            </div>
+            
+            <div class="help-section">
+                <h4>Export</h4>
+                <p><strong>Export PNG</strong> - Save current frame as image</p>
+            </div>
         </div>
     </div>