fix(css): enforce explicit layout limits via tailwind utilities across all container blocks

components/blocks/HeroVideo.tsx

@@ -119,7 +119,7 @@ export function HeroVideo(props: HeroVideoProps) {
       {/* Top Fade for Header Navigation Readability */}
       <div className="absolute top-0 left-0 w-full h-48 bg-gradient-to-b from-black/70 to-transparent z-[3] pointer-events-none" />
       
-      <div className="container relative z-[4] text-center px-4">
+      <div className="container mx-auto max-w-7xl relative z-[4] text-center px-4">
         <div
           key={`hero-content-${pathname}`}
           className="relative"