diff --git a/src/pages/AIChat.tsx b/src/pages/AIChat.tsx
index 4be3fe6..10028d6 100644
--- a/src/pages/AIChat.tsx
+++ b/src/pages/AIChat.tsx
@@ -10,6 +10,7 @@ import { useToast } from '@/hooks/use-toast';
 import GlitchText from '@/components/GlitchText';
 import MessageContent from '@/components/MessageContent';
 import { AI_PROVIDERS, AIProvider, getProvider, CUSTOM_API_STORAGE_KEY } from '@/lib/aiProviders';
+import { useBrowserFullscreen } from '@/hooks/useGameDimensions';
 import {
   DropdownMenu,
   DropdownMenuContent,
@@ -104,21 +105,30 @@ const AIChat = () => {
     }
   }, [customApiConfig]);
 
-  // Exit fullscreen on Escape key
+  const isMobile = typeof window !== 'undefined' && window.innerWidth < 768;
+  const { enterFullscreen, exitFullscreen } = useBrowserFullscreen();
+
   // Exit fullscreen on Escape key
   useEffect(() => {
     const handleEscape = (e: KeyboardEvent) => {
       if (e.key === 'Escape' && isFullscreen) {
         setIsFullscreen(false);
+        exitFullscreen();
         playSound('click');
       }
     };
     window.addEventListener('keydown', handleEscape);
     return () => window.removeEventListener('keydown', handleEscape);
-  }, [isFullscreen, playSound]);
+  }, [isFullscreen, playSound, exitFullscreen]);
 
-  const toggleFullscreen = () => {
-    setIsFullscreen(prev => !prev);
+  const toggleFullscreen = async () => {
+    if (!isFullscreen) {
+      setIsFullscreen(true);
+      await enterFullscreen();
+    } else {
+      setIsFullscreen(false);
+      await exitFullscreen();
+    }
     playSound('click');
   };
 
@@ -379,21 +389,21 @@ const AIChat = () => {
       transition={{ duration: 0.5 }}
       className={`flex flex-col ${
         isFullscreen
-          ? 'fixed inset-0 z-50 bg-background p-4 md:p-8'
+          ? 'fixed inset-0 z-50 bg-background p-3 md:p-8 overflow-hidden'
           : 'h-full'
       }`}
     >
-      <div className="flex flex-col sm:flex-row sm:items-center justify-between gap-2 mb-4">
+      <div className="flex items-center justify-between gap-2 mb-3 flex-shrink-0">
         <GlitchText
           text="AI Terminal"
-          className="font-minecraft text-2xl md:text-3xl text-primary text-glow"
+          className={`font-minecraft ${isMobile ? 'text-xl' : 'text-2xl md:text-3xl'} text-primary text-glow`}
         />
-        <div className="flex items-center gap-2 flex-wrap">
+        <div className="flex items-center gap-1 sm:gap-2">
           <Button
             variant="ghost"
             size="sm"
             onClick={toggleFullscreen}
-            className="text-primary hover:bg-primary/20 order-first sm:order-last"
+            className="text-primary hover:bg-primary/20 p-2"
             title={isFullscreen ? 'Exit fullscreen (Esc)' : 'Fullscreen'}
           >
             {isFullscreen ? (
@@ -404,8 +414,8 @@ const AIChat = () => {
           </Button>
           {messages.length > 0 && (
             <>
-              <div className="flex items-center gap-2 px-2 py-1 border border-primary/30 rounded text-xs font-pixel">
-                <span className="text-muted-foreground">Memory:</span>
+              <div className="hidden sm:flex items-center gap-2 px-2 py-1 border border-primary/30 rounded text-xs font-pixel">
+                <span className="text-muted-foreground">Mem:</span>
                 <span
                   className={`${
                     (() => {
@@ -437,24 +447,24 @@ const AIChat = () => {
                 variant="ghost"
                 size="sm"
                 onClick={clearChat}
-                className="text-primary hover:bg-primary/20"
+                className="text-primary hover:bg-primary/20 p-2"
               >
-                <Trash2 className="w-4 h-4 mr-2" />
-                Clear
+                <Trash2 className="w-4 h-4" />
+                <span className="hidden sm:inline ml-2">Clear</span>
               </Button>
             </>
           )}
         </div>
       </div>
 
-      <div className="flex items-center gap-2 mb-4">
-        <span className="text-muted-foreground font-pixel text-sm">{'>'} Model:</span>
+      <div className="flex items-center gap-2 mb-3 flex-shrink-0 overflow-x-auto">
+        <span className="text-muted-foreground font-pixel text-xs sm:text-sm whitespace-nowrap">{'>'} Model:</span>
         <DropdownMenu>
           <DropdownMenuTrigger asChild>
             <Button
               variant="ghost"
               size="sm"
-              className="text-primary hover:bg-primary/20 font-pixel text-sm gap-1"
+              className="text-primary hover:bg-primary/20 font-pixel text-xs sm:text-sm gap-1 px-2"
             >
               {getProvider(selectedProvider).name}
               <ChevronDown className="w-3 h-3" />
@@ -507,11 +517,11 @@ const AIChat = () => {
       </div>
 
       <ScrollArea
-        className="flex-1 border border-primary/30 rounded-lg p-4 mb-4 bg-background/50"
+        className="flex-1 min-h-0 border border-primary/30 rounded-lg p-2 sm:p-4 mb-3 bg-background/50"
         ref={scrollRef}
       >
         {messages.length === 0 ? (
-          <div className="h-full flex items-center justify-center text-muted-foreground">
+          <div className="h-full flex items-center justify-center text-muted-foreground py-8">
             <div className="text-center">
               <Bot className="w-12 h-12 mx-auto mb-4 opacity-50" />
               <p className="font-pixel text-sm">No messages yet.</p>
@@ -549,7 +559,7 @@ const AIChat = () => {
                     </div>
                   )}
                   <div
-                    className={`max-w-[80%] p-3 rounded-lg ${
+                    className={`max-w-[85%] sm:max-w-[80%] p-2 sm:p-3 rounded-lg text-sm ${
                       message.role === 'user'
                         ? 'bg-primary/20 border border-primary/50'
                         : 'bg-secondary/50 border border-primary/30'
@@ -590,14 +600,14 @@ const AIChat = () => {
         )}
       </ScrollArea>
 
-      <div className="flex gap-2">
+      <div className="flex gap-2 flex-shrink-0">
         <Textarea
           value={input}
           onChange={(e) => setInput(e.target.value)}
           onKeyDown={handleKeyDown}
           placeholder="Type your message..."
           disabled={isLoading}
-          className="resize-none font-pixel text-sm bg-background/50 border-primary/50 text-primary placeholder:text-muted-foreground focus:border-primary"
+          className="resize-none font-pixel text-xs sm:text-sm bg-background/50 border-primary/50 text-primary placeholder:text-muted-foreground focus:border-primary min-h-[60px]"
           rows={2}
         />
         <Button