fix: hero always dark bg — no light/dark split for video section

src/components/sections/Hero.tsx

@@ -98,7 +98,7 @@ export function Hero({ data: hero }: HeroProps) {
   }, [scrollToNext]);
 
   return (
-    <section id="hero" ref={sectionRef} aria-label="Главный баннер" className="relative flex min-h-svh items-center justify-center overflow-hidden bg-neutral-100 dark:bg-neutral-950">
+    <section id="hero" ref={sectionRef} aria-label="Главный баннер" className="relative flex min-h-svh items-center justify-center overflow-hidden bg-neutral-950">
       {/* Videos render only after hydration to avoid SSR mismatch */}
       {mounted && (
         <>
@@ -161,7 +161,7 @@ export function Hero({ data: hero }: HeroProps) {
       {/* Loading overlay — covers videos but not content */}
       <div
         ref={overlayRef}
-        className="absolute inset-0 z-[5] bg-neutral-100 dark:bg-neutral-950 pointer-events-none transition-opacity duration-1000"
+        className="absolute inset-0 z-[5] bg-neutral-950 pointer-events-none transition-opacity duration-1000"
       />
 
       {/* Vignette — dark edges to guide eye to center */}