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.gitattributes

@@ -57,3 +57,4 @@ client/public/background/20.png filter=lfs diff=lfs merge=lfs -text
 client/public/background/White_cardboard[[:space:]](1).jpg filter=lfs diff=lfs merge=lfs -text
 client/public/background/background-3.jpg filter=lfs diff=lfs merge=lfs -text
 client/public/background/background-4.png filter=lfs diff=lfs merge=lfs -text
+client/public/background/5.jpg filter=lfs diff=lfs merge=lfs -text

client/src/components/Layout.tsx

@@ -170,7 +170,7 @@ const Layout: React.FC<{ children: React.ReactNode }> = ({ children }) => {
   };
 
   return (
-    <div className="min-h-screen text-ui-text" style={{ backgroundImage: 'url(/background/background-4.png)', backgroundSize: 'auto', backgroundPosition: 'bottom', backgroundRepeat: 'no-repeat' }}>
+    <div className="min-h-screen text-ui-text" style={{ backgroundImage: 'url(/background/background-4.png)', backgroundSize: '100% auto', backgroundPosition: 'bottom', backgroundRepeat: 'no-repeat' }}>
       {/* Top Bar */}
       <header className="sticky top-0 z-40 bg-ui-panel/80 backdrop-blur border-b border-ui-border">
         <div className="px-4 sm:px-6 lg:px-8 h-14 flex items-center justify-between">