diff --git a/_layouts/embed-preview.html b/_layouts/embed-preview.html
index 0a35f12..4103646 100644
--- a/_layouts/embed-preview.html
+++ b/_layouts/embed-preview.html
@@ -26,6 +26,46 @@
     <link rel="stylesheet" href="{{ '/embed-preview-style.css' | relative_url }}">
     <link rel="icon" type="image/x-icon" href="{{ '/favicon.ico' | relative_url }}">
     <meta name="description" content="AI prompt viewer">
+    <style>
+        @keyframes flash {
+            0%, 100% { opacity: 1; }
+            50% { opacity: 0.4; }
+        }
+        
+        .flash-animation {
+            animation: flash 1.5s ease-in-out infinite;
+        }
+        
+        @keyframes slideUp {
+            from {
+                transform: translateY(100%);
+                opacity: 0;
+            }
+            to {
+                transform: translateY(0);
+                opacity: 1;
+            }
+        }
+        
+        @keyframes slideDown {
+            from {
+                transform: translateY(0);
+                opacity: 1;
+            }
+            to {
+                transform: translateY(100%);
+                opacity: 0;
+            }
+        }
+        
+        .diff-enter {
+            animation: slideUp 0.3s ease-out;
+        }
+        
+        .diff-exit {
+            animation: slideDown 0.3s ease-out;
+        }
+    </style>
 </head>
 <body class="bg-dynamic-background text-dynamic-foreground overflow-hidden">
     <!-- Viewer Mode -->
@@ -39,9 +79,9 @@
         </div>
         
         <!-- Main Content -->
-        <div class="flex-1 flex flex-col p-2 sm:p-4 min-h-0">
+        <div class="flex-1 flex flex-col p-2 sm:p-4 h-full overflow-hidden">
             <!-- Top Bar with Context Pills and Edit Button -->
-            <div class="flex justify-between items-start gap-2 mb-1 sm:mb-2 max-w-full flex-shrink-0">
+            <div class="flex justify-between items-start gap-2 mb-1 sm:mb-2 flex-shrink-0">
                 <!-- Context Pills -->
                 <div id="context-pills" class="flex flex-wrap gap-1.5 empty:hidden flex-1 min-w-0 pr-2"></div>
                 
@@ -54,54 +94,98 @@
                 </button>
             </div>
             
-            <!-- Diff View (if enabled) -->
-            <div id="diff-view" class="hidden mb-2">
-                <div class="bg-dynamic-muted border border-dynamic-border rounded-lg p-2">
-                    <div class="flex items-center justify-between mb-1.5">
-                        <div class="flex items-center gap-1.5">
-                            <svg class="w-3 h-3 text-dynamic-primary flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
-                                <path fill-rule="evenodd" d="M4 2a2 2 0 00-2 2v12a2 2 0 002 2h12a2 2 0 002-2V7.414A2 2 0 0017.414 6L14 2.586A2 2 0 0012.586 2H4zm2 4a1 1 0 011-1h4a1 1 0 110 2H7a1 1 0 01-1-1zm1 3a1 1 0 100 2h6a1 1 0 100-2H7zm-1 5a1 1 0 011-1h6a1 1 0 110 2H7a1 1 0 01-1-1z" clip-rule="evenodd"/>
-                            </svg>
-                            <span id="diff-filename" class="text-xs font-medium text-dynamic-foreground truncate"></span>
+            <!-- Main Prompt Interface with Floating Diff - Flex-1 to take remaining space -->
+            <div class="flex-1 relative min-h-0 overflow-hidden">
+                <!-- Floating Diff View (when enabled and viewport is compact) -->
+                <div id="diff-view" class="hidden absolute top-2 left-2 right-2 z-10 diff-floating">
+                    <div class="bg-dynamic-background/95 backdrop-blur-sm border border-dynamic-border shadow-lg rounded-lg p-3">
+                        <div class="flex items-center justify-between">
+                            <div class="flex items-center gap-1.5">
+                                <svg class="w-3 h-3 text-dynamic-primary flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
+                                    <path fill-rule="evenodd" d="M4 2a2 2 0 00-2 2v12a2 2 0 002 2h12a2 2 0 002-2V7.414A2 2 0 0017.414 6L14 2.586A2 2 0 0012.586 2H4zm2 4a1 1 0 011-1h4a1 1 0 110 2H7a1 1 0 01-1-1zm1 3a1 1 0 100 2h6a1 1 0 100-2H7zm-1 5a1 1 0 011-1h6a1 1 0 110 2H7a1 1 0 01-1-1z" clip-rule="evenodd"/>
+                                </svg>
+                                <span id="diff-filename" class="text-xs font-medium text-dynamic-foreground truncate"></span>
+                            </div>
+                            <div class="flex gap-1 items-center">
+                                <div class="flex rounded-md overflow-hidden">
+                                    <button id="diff-accept-diff" class="px-2 py-0.5 bg-green-500 hover:bg-green-600 text-white text-[10px] font-medium transition-colors flex items-center gap-0.5">
+                                        <svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor">
+                                            <path fill-rule="evenodd" d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z" clip-rule="evenodd"/>
+                                        </svg>
+                                        <span class="hidden sm:inline">Accept</span>
+                                    </button>
+                                    <button id="diff-reject-diff" class="px-2 py-0.5 bg-red-500 hover:bg-red-600 text-white text-[10px] font-medium transition-colors flex items-center gap-0.5">
+                                        <svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor">
+                                            <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"/>
+                                        </svg>
+                                        <span class="hidden sm:inline">Reject</span>
+                                    </button>
+                                </div>
+                                <!-- Collapse/Expand button -->
+                                <button id="toggle-diff" class="p-0.5 text-dynamic-muted-foreground hover:text-dynamic-foreground transition-colors" title="Toggle diff view">
+                                    <svg class="w-3 h-3 transform transition-transform" viewBox="0 0 20 20" fill="currentColor">
+                                        <path fill-rule="evenodd" d="M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z" clip-rule="evenodd"/>
+                                    </svg>
+                                </button>
+                            </div>
                         </div>
-                        <div class="flex rounded-md overflow-hidden">
-                            <button id="accept-diff" class="px-2 py-0.5 bg-green-500 hover:bg-green-600 text-white text-[10px] font-medium transition-colors flex items-center gap-0.5">
-                                <svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor">
-                                    <path fill-rule="evenodd" d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z" clip-rule="evenodd"/>
-                                </svg>
-                                <span class="hidden sm:inline">Accept</span>
-                            </button>
-                            <button id="reject-diff" class="px-2 py-0.5 bg-red-500 hover:bg-red-600 text-white text-[10px] font-medium transition-colors flex items-center gap-0.5">
-                                <svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor">
-                                    <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"/>
-                                </svg>
-                                <span class="hidden sm:inline">Reject</span>
-                            </button>
+                        <div id="diff-content" class="space-y-1 transition-all duration-300 overflow-hidden">
+                            <div id="diff-old-content" class="bg-red-50/70 dark:bg-red-950/20 p-2 rounded text-[10px] font-mono whitespace-pre-wrap text-red-700 dark:text-red-400 overflow-x-auto border border-red-200/50 dark:border-red-900/30 max-h-20 overflow-y-auto custom-scrollbar"></div>
+                            <div id="diff-new-content" class="bg-green-50/70 dark:bg-green-950/20 p-2 rounded text-[10px] font-mono whitespace-pre-wrap text-green-700 dark:text-green-400 overflow-x-auto border border-green-200/50 dark:border-green-900/30 max-h-20 overflow-y-auto custom-scrollbar"></div>
                         </div>
                     </div>
-                    <div class="space-y-0.5">
-                        <div id="diff-old-content" class="bg-red-50/70 dark:bg-red-950/20 p-1 rounded text-[10px] font-mono whitespace-pre-wrap text-red-700 dark:text-red-400 overflow-x-auto border border-red-200/50 dark:border-red-900/30 max-h-20 overflow-y-auto custom-scrollbar"></div>
-                        <div id="diff-new-content" class="bg-green-50/70 dark:bg-green-950/20 p-1 rounded text-[10px] font-mono whitespace-pre-wrap text-green-700 dark:text-green-400 overflow-x-auto border border-green-200/50 dark:border-green-900/30 max-h-20 overflow-y-auto custom-scrollbar"></div>
-                    </div>
                 </div>
-            </div>
-            
-            <!-- Main Prompt Interface - Full Height -->
-            <div class="flex-1 flex flex-col min-h-0">
-                <div id="prompt-container" class="flex-1 bg-dynamic-muted border border-dynamic-border rounded-xl p-3 relative focus-within:border-dynamic-primary transition-colors flex flex-col min-h-0">
-                    <div id="prompt-text" class="flex-1 text-dynamic-foreground leading-relaxed whitespace-pre-wrap overflow-y-auto custom-scrollbar text-sm sm:text-base"></div>
-                    <div id="prompt-placeholder" class="text-dynamic-muted-foreground italic absolute top-3 left-3 pointer-events-none text-sm sm:text-base">← Enter your prompt on designer...</div>
-                </div>
-            </div>
-            
-            <!-- Bottom Bar -->
-            <div class="flex justify-between items-center gap-2 mt-1 sm:mt-2 flex-shrink-0">
-                <!-- Settings Pills -->
-                <div id="settings-pills" class="flex gap-1 sm:gap-2 flex-wrap flex-1 min-w-0"></div>
                 
-                <!-- Send Button (circular with arrow up) -->
-                <button id="copy-button" class="w-8 h-8 sm:w-10 sm:h-10 bg-dynamic-primary text-white rounded-full flex items-center justify-center hover:opacity-90 transition-opacity focus-ring flex-shrink-0 shadow-lg touch-target" title="Send prompt">
-                    <svg width="16" height="16" class="sm:w-5 sm:h-5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5">
+                <!-- Container for inline diff and prompt -->
+                <div class="h-full flex flex-col">
+                    <!-- Inline Diff View (when enabled and viewport has space) -->
+                    <div id="diff-view-inline" class="hidden mb-2 flex-shrink-0">
+                        <div class="bg-dynamic-muted border border-dynamic-border rounded-lg p-2">
+                            <div class="flex items-center justify-between mb-1.5">
+                                <div class="flex items-center gap-1.5">
+                                    <svg class="w-3 h-3 text-dynamic-primary flex-shrink-0" viewBox="0 0 20 20" fill="currentColor">
+                                        <path fill-rule="evenodd" d="M4 2a2 2 0 00-2 2v12a2 2 0 002 2h12a2 2 0 002-2V7.414A2 2 0 0017.414 6L14 2.586A2 2 0 0012.586 2H4zm2 4a1 1 0 011-1h4a1 1 0 110 2H7a1 1 0 01-1-1zm1 3a1 1 0 100 2h6a1 1 0 100-2H7zm-1 5a1 1 0 011-1h6a1 1 0 110 2H7a1 1 0 01-1-1z" clip-rule="evenodd"/>
+                                    </svg>
+                                    <span id="inline-diff-filename" class="text-xs font-medium text-dynamic-foreground truncate"></span>
+                                </div>
+                                <div class="flex rounded-md overflow-hidden">
+                                    <button id="inline-accept-diff" class="px-2 py-0.5 bg-green-500 hover:bg-green-600 text-white text-[10px] font-medium transition-colors flex items-center gap-0.5">
+                                        <svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor">
+                                            <path fill-rule="evenodd" d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z" clip-rule="evenodd"/>
+                                        </svg>
+                                        <span class="hidden sm:inline">Accept</span>
+                                    </button>
+                                    <button id="inline-reject-diff" class="px-2 py-0.5 bg-red-500 hover:bg-red-600 text-white text-[10px] font-medium transition-colors flex items-center gap-0.5">
+                                        <svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor">
+                                            <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"/>
+                                        </svg>
+                                        <span class="hidden sm:inline">Reject</span>
+                                    </button>
+                                </div>
+                            </div>
+                            <div class="space-y-0.5">
+                                <div id="inline-old-content" class="bg-red-50/70 dark:bg-red-950/20 p-1 rounded text-[10px] font-mono whitespace-pre-wrap text-red-700 dark:text-red-400 overflow-x-auto border border-red-200/50 dark:border-red-900/30 max-h-20 overflow-y-auto custom-scrollbar"></div>
+                                <div id="inline-new-content" class="bg-green-50/70 dark:bg-green-950/20 p-1 rounded text-[10px] font-mono whitespace-pre-wrap text-green-700 dark:text-green-400 overflow-x-auto border border-green-200/50 dark:border-green-900/30 max-h-20 overflow-y-auto custom-scrollbar"></div>
+                            </div>
+                        </div>
+                    </div>
+                    
+                    <!-- Prompt Container - Full height of parent -->
+                    <div id="prompt-container" class="flex-1 bg-dynamic-muted border border-dynamic-border rounded-xl p-3 relative focus-within:border-dynamic-primary transition-colors flex flex-col min-h-0">
+                        <div id="prompt-text" class="flex-1 text-dynamic-foreground leading-relaxed whitespace-pre-wrap overflow-y-auto custom-scrollbar text-sm sm:text-base transition-all duration-300"></div>
+                        <div id="prompt-placeholder" class="text-dynamic-muted-foreground italic absolute top-3 left-3 pointer-events-none text-sm sm:text-base">← Enter your prompt on designer...</div>
+                    </div>
+                </div>
+            </div>
+            
+            <!-- Bottom Bar - Always visible with reduced height -->
+            <div class="flex justify-between items-center gap-2 mt-1 pt-1 flex-shrink-0">
+                <!-- Settings Pills - Smaller -->
+                <div id="settings-pills" class="flex gap-1 flex-wrap flex-1 min-w-0"></div>
+                
+                <!-- Send Button - Smaller -->
+                <button id="copy-button" class="w-7 h-7 sm:w-8 sm:h-8 bg-dynamic-primary text-white rounded-full flex items-center justify-center hover:opacity-90 transition-opacity flex-shrink-0 shadow-md" title="Send prompt">
+                    <svg width="14" height="14" class="sm:w-4 sm:h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5">
                         <path d="M12 19V5M5 12l7-7 7 7"/>
                     </svg>
                 </button>
diff --git a/_layouts/embed.html b/_layouts/embed.html
index 26c3247..525de25 100644
--- a/_layouts/embed.html
+++ b/_layouts/embed.html
@@ -275,6 +275,14 @@
                                        class="w-full p-2 bg-dynamic-background border border-dynamic-border rounded-lg text-sm focus-ring touch-target font-mono"
                                        placeholder="components/ProductList.tsx">
                             </div>
+                            <div>
+                                <label class="text-xs text-dynamic-muted-foreground">Flash Button</label>
+                                <select id="designer-flash-button" class="w-full p-2 bg-dynamic-background border border-dynamic-border rounded-lg text-sm focus-ring touch-target">
+                                    <option value="none">None</option>
+                                    <option value="accept">Flash Accept Button</option>
+                                    <option value="reject">Flash Reject Button</option>
+                                </select>
+                            </div>
                             <div>
                                 <label class="text-xs text-dynamic-muted-foreground">Old Text</label>
                                 <textarea id="designer-diff-old" 
diff --git a/embed-preview-script.js b/embed-preview-script.js
index d5482a0..f42d1b7 100644
--- a/embed-preview-script.js
+++ b/embed-preview-script.js
@@ -30,7 +30,8 @@ class EmbedPreview {
             showDiff: this.params.showDiff === 'true',
             diffFilename: this.params.diffFilename || '',
             diffOldText: this.params.diffOldText ? decodeURIComponent(this.params.diffOldText) : '',
-            diffNewText: this.params.diffNewText ? decodeURIComponent(this.params.diffNewText) : ''
+            diffNewText: this.params.diffNewText ? decodeURIComponent(this.params.diffNewText) : '',
+            flashButton: this.params.flashButton || 'none'
         };
     }
     
@@ -38,6 +39,7 @@ class EmbedPreview {
         this.setupColors();
         this.setupElements();
         this.render();
+        this.setupResizeListener();
     }
     
     setupColors() {
@@ -320,21 +322,21 @@ class EmbedPreview {
     
     createSettingPill(text, type) {
         const pill = document.createElement('div');
-        pill.className = 'rounded-full text-xs font-medium flex items-center gap-1.5';
+        pill.className = 'rounded-full text-[10px] font-medium flex items-center gap-1';
         
         let icon = '';
         
         // Use different styling based on pill type
         if (type === 'mode') {
-            // Mode pill keeps the background
+            // Mode pill keeps the background with reduced padding
             if (this.isDarkMode) {
-                pill.className += ' px-3 py-2 bg-dynamic-primary/20 text-dynamic-foreground border border-dynamic-primary/30';
+                pill.className += ' px-2 py-1 bg-dynamic-primary/20 text-dynamic-foreground border border-dynamic-primary/30';
             } else {
-                pill.className += ' px-3 py-2 bg-dynamic-primary/10 text-dynamic-foreground border border-dynamic-primary/20';
+                pill.className += ' px-2 py-1 bg-dynamic-primary/10 text-dynamic-foreground border border-dynamic-primary/20';
             }
         } else {
             // Model, thinking, and max pills only have text color
-            pill.className += ' pl-1 text-dynamic-primary';
+            pill.className += ' pl-0.5 text-dynamic-primary';
         }
         
         switch (type) {
@@ -346,16 +348,16 @@ class EmbedPreview {
                 const modeType = text.toLowerCase();
                 switch (modeType) {
                     case 'agent':
-                        icon = '<svg class="w-3 h-3" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><path d="M18.18 8.04c-.78-.84-1.92-1.54-3.18-1.54-1.44 0-2.7.93-3.48 2.25-.78-1.32-2.04-2.25-3.48-2.25-1.26 0-2.4.7-3.18 1.54-.87.94-1.36 2.11-1.36 3.46 0 1.35.49 2.52 1.36 3.46.78.84 1.92 1.54 3.18 1.54 1.44 0 2.7-.93 3.48-2.25.78 1.32 2.04 2.25 3.48 2.25 1.26 0 2.4-.7 3.18-1.54.87-.94 1.36-2.11 1.36-3.46 0-1.35-.49-2.52-1.36-3.46z"/></svg>';
+                        icon = '<svg class="w-2.5 h-2.5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><path d="M18.18 8.04c-.78-.84-1.92-1.54-3.18-1.54-1.44 0-2.7.93-3.48 2.25-.78-1.32-2.04-2.25-3.48-2.25-1.26 0-2.4.7-3.18 1.54-.87.94-1.36 2.11-1.36 3.46 0 1.35.49 2.52 1.36 3.46.78.84 1.92 1.54 3.18 1.54 1.44 0 2.7-.93 3.48-2.25.78 1.32 2.04 2.25 3.48 2.25 1.26 0 2.4-.7 3.18-1.54.87-.94 1.36-2.11 1.36-3.46 0-1.35-.49-2.52-1.36-3.46z"/></svg>';
                         break;
                     case 'chat':
-                        icon = '<svg class="w-3 h-3" viewBox="0 0 20 20" fill="currentColor"><path fill-rule="evenodd" d="M18 10c0 3.866-3.582 7-8 7a8.841 8.841 0 01-4.083-.98L2 17l1.338-3.123C2.493 12.767 2 11.434 2 10c0-3.866 3.582-7 8-7s8 3.134 8 7zM7 9H5v2h2V9zm8 0h-2v2h2V9zM9 9h2v2H9V9z" clip-rule="evenodd"/></svg>';
+                        icon = '<svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor"><path fill-rule="evenodd" d="M18 10c0 3.866-3.582 7-8 7a8.841 8.841 0 01-4.083-.98L2 17l1.338-3.123C2.493 12.767 2 11.434 2 10c0-3.866 3.582-7 8-7s8 3.134 8 7zM7 9H5v2h2V9zm8 0h-2v2h2V9zM9 9h2v2H9V9z" clip-rule="evenodd"/></svg>';
                         break;
                     case 'manual':
-                        icon = '<svg class="w-3 h-3" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"/><path d="M12 2v20M2 12h20"/><circle cx="12" cy="12" r="3" fill="currentColor"/></svg>';
+                        icon = '<svg class="w-2.5 h-2.5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"/><path d="M12 2v20M2 12h20"/><circle cx="12" cy="12" r="3" fill="currentColor"/></svg>';
                         break;
                     case 'cloud':
-                        icon = '<svg class="w-3 h-3" viewBox="0 0 20 20" fill="currentColor"><path d="M5.5 16a3.5 3.5 0 01-.369-6.98 4 4 0 117.753-1.977A4.5 4.5 0 1113.5 16h-8z"/></svg>';
+                        icon = '<svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor"><path d="M5.5 16a3.5 3.5 0 01-.369-6.98 4 4 0 117.753-1.977A4.5 4.5 0 1113.5 16h-8z"/></svg>';
                         break;
                     default:
                         icon = '';
@@ -365,12 +367,12 @@ class EmbedPreview {
                 break;
             case 'thinking':
                 // Brain icon for thinking mode
-                icon = '<svg class="w-3 h-3" viewBox="0 0 24 24" fill="currentColor"><path d="M19.864 8.465a3.505 3.505 0 0 0-3.03-4.449A3.005 3.005 0 0 0 14 2a2.98 2.98 0 0 0-2 .78A2.98 2.98 0 0 0 10 2c-1.301 0-2.41.831-2.825 2.015a3.505 3.505 0 0 0-3.039 4.45A4.028 4.028 0 0 0 2 12c0 1.075.428 2.086 1.172 2.832A4.067 4.067 0 0 0 3 16c0 1.957 1.412 3.59 3.306 3.934A3.515 3.515 0 0 0 9.5 22c.979 0 1.864-.407 2.5-1.059A3.484 3.484 0 0 0 14.5 22a3.51 3.51 0 0 0 3.19-2.06 4.006 4.006 0 0 0 3.138-5.108A4.003 4.003 0 0 0 22 12a4.028 4.028 0 0 0-2.136-3.535zM9.5 20c-.711 0-1.33-.504-1.47-1.198L7.818 18H7c-1.103 0-2-.897-2-2 0-.352.085-.682.253-.981l.456-.816-.784-.51A2.019 2.019 0 0 1 4 12c0-.977.723-1.824 1.682-1.972l1.693-.26-1.059-1.346a1.502 1.502 0 0 1 1.498-2.39L9 6.207V5a1 1 0 0 1 2 0v13.5c0 .827-.673 1.5-1.5 1.5zm9.575-6.308-.784.51.456.816c.168.3.253.63.253.982 0 1.103-.897 2-2.05 2h-.818l-.162.802A1.502 1.502 0 0 1 14.5 20c-.827 0-1.5-.673-1.5-1.5V5c0-.552.448-1 1-1s1 .448 1 1.05v1.207l1.186-.225a1.502 1.502 0 0 1 1.498 2.39l-1.059 1.347 1.693.26A2.002 2.002 0 0 1 20 12c0 .683-.346 1.315-.925 1.692z"></path></svg>';
+                icon = '<svg class="w-2.5 h-2.5" viewBox="0 0 24 24" fill="currentColor"><path d="M19.864 8.465a3.505 3.505 0 0 0-3.03-4.449A3.005 3.005 0 0 0 14 2a2.98 2.98 0 0 0-2 .78A2.98 2.98 0 0 0 10 2c-1.301 0-2.41.831-2.825 2.015a3.505 3.505 0 0 0-3.039 4.45A4.028 4.028 0 0 0 2 12c0 1.075.428 2.086 1.172 2.832A4.067 4.067 0 0 0 3 16c0 1.957 1.412 3.59 3.306 3.934A3.515 3.515 0 0 0 9.5 22c.979 0 1.864-.407 2.5-1.059A3.484 3.484 0 0 0 14.5 22a3.51 3.51 0 0 0 3.19-2.06 4.006 4.006 0 0 0 3.138-5.108A4.003 4.003 0 0 0 22 12a4.028 4.028 0 0 0-2.136-3.535zM9.5 20c-.711 0-1.33-.504-1.47-1.198L7.818 18H7c-1.103 0-2-.897-2-2 0-.352.085-.682.253-.981l.456-.816-.784-.51A2.019 2.019 0 0 1 4 12c0-.977.723-1.824 1.682-1.972l1.693-.26-1.059-1.346a1.502 1.502 0 0 1 1.498-2.39L9 6.207V5a1 1 0 0 1 2 0v13.5c0 .827-.673 1.5-1.5 1.5zm9.575-6.308-.784.51.456.816c.168.3.253.63.253.982 0 1.103-.897 2-2.05 2h-.818l-.162.802A1.502 1.502 0 0 1 14.5 20c-.827 0-1.5-.673-1.5-1.5V5c0-.552.448-1 1-1s1 .448 1 1.05v1.207l1.186-.225a1.502 1.502 0 0 1 1.498 2.39l-1.059 1.347 1.693.26A2.002 2.002 0 0 1 20 12c0 .683-.346 1.315-.925 1.692z"></path></svg>';
                 pill.innerHTML = icon + '<span>' + text + '</span>';
                 break;
             case 'max':
                 // Lightning bolt icon for MAX mode
-                icon = '<svg class="w-3 h-3" viewBox="0 0 20 20" fill="currentColor"><path d="M11.3 1.046A1 1 0 0112 2v5h4a1 1 0 01.82 1.573l-7 10A1 1 0 018 18v-5H4a1 1 0 01-.82-1.573l7-10a1 1 0 011.12-.38z"/></svg>';
+                icon = '<svg class="w-2.5 h-2.5" viewBox="0 0 20 20" fill="currentColor"><path d="M11.3 1.046A1 1 0 0112 2v5h4a1 1 0 01.82 1.573l-7 10A1 1 0 018 18v-5H4a1 1 0 01-.82-1.573l7-10a1 1 0 011.12-.38z"/></svg>';
                 pill.innerHTML = icon + '<span>' + text + '</span>';
                 break;
         }
@@ -378,54 +380,166 @@ class EmbedPreview {
         return pill;
     }
     
+    setupResizeListener() {
+        let resizeTimeout;
+        window.addEventListener('resize', () => {
+            clearTimeout(resizeTimeout);
+            resizeTimeout = setTimeout(() => {
+                this.renderDiffView();
+            }, 100);
+        });
+    }
+    
     renderDiffView() {
         const diffView = document.getElementById('diff-view');
-        if (!diffView) return;
+        const diffViewInline = document.getElementById('diff-view-inline');
+        const promptText = document.getElementById('prompt-text');
+        if (!diffView || !diffViewInline) return;
+        
+        const viewportHeight = window.innerHeight;
+        const isCompact = viewportHeight < 400;
         
         if (this.config.showDiff && (this.config.diffOldText || this.config.diffNewText)) {
-            diffView.classList.remove('hidden');
-            
-            // Set filename
-            const filenameElement = document.getElementById('diff-filename');
-            if (filenameElement) {
-                filenameElement.textContent = this.config.diffFilename || 'untitled';
-            }
-            
-            // Set diff content
-            const oldContent = document.getElementById('diff-old-content');
-            const newContent = document.getElementById('diff-new-content');
-            
-            if (oldContent) {
-                oldContent.textContent = this.config.diffOldText || '(empty)';
-                // Update colors based on dark mode
-                if (this.isDarkMode) {
-                    oldContent.style.backgroundColor = 'rgba(127, 29, 29, 0.15)';
-                    oldContent.style.color = '#fca5a5';
-                    oldContent.style.borderColor = 'rgba(127, 29, 29, 0.3)';
-                } else {
-                    oldContent.style.backgroundColor = 'rgba(254, 226, 226, 0.7)';
-                    oldContent.style.color = '#b91c1c';
-                    oldContent.style.borderColor = 'rgba(252, 165, 165, 0.5)';
+            // Determine which view to show based on viewport height
+            if (isCompact) {
+                // Show floating diff view
+                diffView.classList.remove('hidden');
+                diffView.classList.add('diff-enter');
+                diffViewInline.classList.add('hidden');
+                this.setupDiffContent('diff-view');
+            } else {
+                // Show inline diff view
+                diffViewInline.classList.remove('hidden');
+                diffView.classList.add('hidden');
+                this.setupDiffContent('diff-view-inline');
+                // Reset margin when switching to inline view
+                if (promptText) {
+                    promptText.style.marginTop = '0';
                 }
             }
-            if (newContent) {
-                newContent.textContent = this.config.diffNewText || '(empty)';
-                // Update colors based on dark mode
-                if (this.isDarkMode) {
-                    newContent.style.backgroundColor = 'rgba(20, 83, 45, 0.15)';
-                    newContent.style.color = '#86efac';
-                    newContent.style.borderColor = 'rgba(20, 83, 45, 0.3)';
-                } else {
-                    newContent.style.backgroundColor = 'rgba(220, 252, 231, 0.7)';
-                    newContent.style.color = '#15803d';
-                    newContent.style.borderColor = 'rgba(134, 239, 172, 0.5)';
-                }
-            }
-            
-            // Buttons are dummy - no click handlers needed
-            // They're just for visual representation
         } else {
             diffView.classList.add('hidden');
+            diffViewInline.classList.add('hidden');
+            // Reset margin when diff is hidden
+            if (promptText) {
+                promptText.style.marginTop = '0';
+            }
+        }
+    }
+    
+    setupDiffContent(containerId) {
+        const container = document.getElementById(containerId);
+        if (!container) return;
+        
+        // Count lines in old and new content
+        const oldLines = this.config.diffOldText ? this.config.diffOldText.split('\n').length : 0;
+        const newLines = this.config.diffNewText ? this.config.diffNewText.split('\n').length : 0;
+        
+        // Set filename with line counts
+        const filenameElement = container.querySelector('[id$="-filename"]');
+        if (filenameElement) {
+            const filename = this.config.diffFilename || 'untitled';
+            filenameElement.innerHTML = `
+                <span>${filename}</span>
+                <span class="ml-2 text-[10px] font-mono">
+                    <span class="text-green-600 dark:text-green-400">+${newLines}</span>
+                    <span class="text-red-600 dark:text-red-400">-${oldLines}</span>
+                </span>
+            `;
+        }
+        
+        // Set diff content
+        const oldContent = container.querySelector('[id$="-old-content"]');
+        const newContent = container.querySelector('[id$="-new-content"]');
+        
+        if (oldContent) {
+            oldContent.textContent = this.config.diffOldText || '(empty)';
+            // Update colors based on dark mode
+            if (this.isDarkMode) {
+                oldContent.style.backgroundColor = 'rgba(127, 29, 29, 0.15)';
+                oldContent.style.color = '#fca5a5';
+                oldContent.style.borderColor = 'rgba(127, 29, 29, 0.3)';
+            } else {
+                oldContent.style.backgroundColor = 'rgba(254, 226, 226, 0.7)';
+                oldContent.style.color = '#b91c1c';
+                oldContent.style.borderColor = 'rgba(252, 165, 165, 0.5)';
+            }
+        }
+        if (newContent) {
+            newContent.textContent = this.config.diffNewText || '(empty)';
+            // Update colors based on dark mode
+            if (this.isDarkMode) {
+                newContent.style.backgroundColor = 'rgba(20, 83, 45, 0.15)';
+                newContent.style.color = '#86efac';
+                newContent.style.borderColor = 'rgba(20, 83, 45, 0.3)';
+            } else {
+                newContent.style.backgroundColor = 'rgba(220, 252, 231, 0.7)';
+                newContent.style.color = '#15803d';
+                newContent.style.borderColor = 'rgba(134, 239, 172, 0.5)';
+            }
+        }
+        
+        // Apply flash animation to buttons if configured
+        const acceptButton = container.querySelector('[id$="-accept-diff"]');
+        const rejectButton = container.querySelector('[id$="-reject-diff"]');
+        
+        if (this.config.flashButton === 'accept' && acceptButton) {
+            acceptButton.classList.add('flash-animation');
+            // Remove from reject button if it exists
+            if (rejectButton) rejectButton.classList.remove('flash-animation');
+        } else if (this.config.flashButton === 'reject' && rejectButton) {
+            rejectButton.classList.add('flash-animation');
+            // Remove from accept button if it exists
+            if (acceptButton) acceptButton.classList.remove('flash-animation');
+        } else {
+            // Remove animation from both if 'none'
+            if (acceptButton) acceptButton.classList.remove('flash-animation');
+            if (rejectButton) rejectButton.classList.remove('flash-animation');
+        }
+        
+        // Setup toggle button for floating view only
+        if (containerId === 'diff-view') {
+            const toggleButton = container.querySelector('#toggle-diff');
+            const diffContent = container.querySelector('#diff-content');
+            const promptText = document.getElementById('prompt-text');
+            
+            if (toggleButton && diffContent && promptText) {
+                // Remove existing listeners
+                const newToggleButton = toggleButton.cloneNode(true);
+                toggleButton.parentNode.replaceChild(newToggleButton, toggleButton);
+                
+                // Set initial state - collapsed when compact
+                let isExpanded = false;
+                diffContent.style.maxHeight = '0';
+                diffContent.style.overflow = 'hidden';
+                newToggleButton.querySelector('svg').style.transform = 'rotate(-90deg)';
+                
+                // Function to update prompt margin based on diff view height
+                const updatePromptMargin = () => {
+                    const diffHeight = container.offsetHeight;
+                    promptText.style.marginTop = `${diffHeight + 16}px`; // 16px for some breathing room
+                };
+                
+                // Set initial margin
+                setTimeout(updatePromptMargin, 0);
+                
+                newToggleButton.addEventListener('click', () => {
+                    isExpanded = !isExpanded;
+                    
+                    if (isExpanded) {
+                        diffContent.style.maxHeight = diffContent.scrollHeight + 'px';
+                        newToggleButton.querySelector('svg').style.transform = 'rotate(0deg)';
+                        // Update margin after animation
+                        setTimeout(updatePromptMargin, 300);
+                    } else {
+                        diffContent.style.maxHeight = '0';
+                        diffContent.style.overflow = 'hidden';
+                        newToggleButton.querySelector('svg').style.transform = 'rotate(-90deg)';
+                        // Update margin after animation
+                        setTimeout(updatePromptMargin, 300);
+                    }
+                });
+            }
         }
     }
     
diff --git a/embed-script.js b/embed-script.js
index 4456b85..6c9f4d9 100644
--- a/embed-script.js
+++ b/embed-script.js
@@ -38,7 +38,8 @@ class EmbedDesigner {
                 showDiff: this.params.showDiff === 'true' || savedConfig.showDiff || false,
                 diffFilename: this.params.diffFilename || savedConfig.diffFilename || '',
                 diffOldText: this.params.diffOldText ? decodeURIComponent(this.params.diffOldText) : (savedConfig.diffOldText || ''),
-                diffNewText: this.params.diffNewText ? decodeURIComponent(this.params.diffNewText) : (savedConfig.diffNewText || '')
+                diffNewText: this.params.diffNewText ? decodeURIComponent(this.params.diffNewText) : (savedConfig.diffNewText || ''),
+                flashButton: this.params.flashButton || savedConfig.flashButton || 'none'
             };
         }
         
@@ -65,7 +66,8 @@ class EmbedDesigner {
             showDiff: false,
             diffFilename: '',
             diffOldText: '',
-            diffNewText: ''
+            diffNewText: '',
+            flashButton: 'none'
         };
     }
     
@@ -93,7 +95,8 @@ class EmbedDesigner {
                         showDiff: config.showDiff || false,
                         diffFilename: config.diffFilename || '',
                         diffOldText: config.diffOldText || '',
-                        diffNewText: config.diffNewText || ''
+                        diffNewText: config.diffNewText || '',
+                        flashButton: config.flashButton || 'none'
                     };
                 }
             }
@@ -204,10 +207,12 @@ class EmbedDesigner {
         const diffFilename = document.getElementById('designer-diff-filename');
         const diffOldText = document.getElementById('designer-diff-old');
         const diffNewText = document.getElementById('designer-diff-new');
+        const flashButton = document.getElementById('designer-flash-button');
         
         if (diffFilename) diffFilename.value = this.config.diffFilename || '';
         if (diffOldText) diffOldText.value = this.config.diffOldText || '';
         if (diffNewText) diffNewText.value = this.config.diffNewText || '';
+        if (flashButton) flashButton.value = this.config.flashButton || 'none';
     }
     
     updateThemeModeButtons() {
@@ -226,7 +231,7 @@ class EmbedDesigner {
     
     setupDesignerEvents() {
         // Form changes update preview
-        ['designer-prompt', 'designer-context', 'designer-mode-select', 'designer-thinking', 'designer-max', 'designer-filetree', 'designer-show-filetree', 'designer-diff-filename', 'designer-diff-old', 'designer-diff-new'].forEach(id => {
+        ['designer-prompt', 'designer-context', 'designer-mode-select', 'designer-thinking', 'designer-max', 'designer-filetree', 'designer-show-filetree', 'designer-diff-filename', 'designer-diff-old', 'designer-diff-new', 'designer-flash-button'].forEach(id => {
             const element = document.getElementById(id);
             if (element) {
                 element.addEventListener('input', () => this.updateConfigFromForm());
@@ -457,7 +462,8 @@ class EmbedDesigner {
             showDiff: document.getElementById('designer-show-diff').checked,
             diffFilename: document.getElementById('designer-diff-filename').value,
             diffOldText: document.getElementById('designer-diff-old').value,
-            diffNewText: document.getElementById('designer-diff-new').value
+            diffNewText: document.getElementById('designer-diff-new').value,
+            flashButton: document.getElementById('designer-flash-button').value
         };
         
         this.updatePreview();
@@ -534,6 +540,7 @@ class EmbedDesigner {
         if (this.config.showDiff) {
             params.set('showDiff', 'true');
             if (this.config.diffFilename) params.set('diffFilename', this.config.diffFilename);
+            if (this.config.flashButton && this.config.flashButton !== 'none') params.set('flashButton', this.config.flashButton);
             // Truncate diff text if too long to prevent URL length issues
             if (this.config.diffOldText) {
                 const truncated = this.config.diffOldText.substring(0, 100);
@@ -564,6 +571,7 @@ class EmbedDesigner {
         if (this.config.showDiff) {
             params.set('showDiff', 'true');
             if (this.config.diffFilename) params.set('diffFilename', this.config.diffFilename);
+            if (this.config.flashButton && this.config.flashButton !== 'none') params.set('flashButton', this.config.flashButton);
             // Truncate diff text if too long to prevent URL length issues
             if (this.config.diffOldText) {
                 const truncated = this.config.diffOldText.substring(0, 150);
@@ -705,6 +713,7 @@ src/types/product.ts`;
         // No diff for this example
         document.getElementById('designer-show-diff').checked = false;
         document.getElementById('diff-fields').classList.add('hidden');
+        document.getElementById('designer-flash-button').value = 'none';
         
         // Update config from form
         this.updateConfigFromForm();
@@ -766,6 +775,9 @@ const [loading, setLoading] = useState(true);`;
 const [loading, setLoading] = useState(true);
 const [error, setError] = useState<Error | null>(null);`;
         
+        // Flash accept button for this example with diff
+        document.getElementById('designer-flash-button').value = 'accept';
+        
         // Update config from form
         this.updateConfigFromForm();
         
@@ -812,6 +824,7 @@ Can you suggest a menu with appetizers, main course, and dessert that would work
         // Clear diff view
         document.getElementById('designer-show-diff').checked = false;
         document.getElementById('diff-fields').classList.add('hidden');
+        document.getElementById('designer-flash-button').value = 'none';
         
         // Update config from form
         this.updateConfigFromForm();
@@ -865,6 +878,7 @@ Keep it warm but professional, around 150-200 words.`;
         // Clear diff view
         document.getElementById('designer-show-diff').checked = false;
         document.getElementById('diff-fields').classList.add('hidden');
+        document.getElementById('designer-flash-button').value = 'none';
         
         // Update config from form
         this.updateConfigFromForm();
@@ -915,6 +929,7 @@ Keep it warm but professional, around 150-200 words.`;
         // Clear diff view
         document.getElementById('designer-show-diff').checked = false;
         document.getElementById('diff-fields').classList.add('hidden');
+        document.getElementById('designer-flash-button').value = 'none';
         
         // Update config from form
         this.updateConfigFromForm();
@@ -972,6 +987,7 @@ docs/openapi.yaml*`;
         // Clear diff view
         document.getElementById('designer-show-diff').checked = false;
         document.getElementById('diff-fields').classList.add('hidden');
+        document.getElementById('designer-flash-button').value = 'none';
         
         // Update config from form
         this.updateConfigFromForm();
