fix: headings white instead of gold gradient, gold as accent only

- SectionHeading: text-neutral-900/dark:text-white instead of
  gradient-text — cleaner, more premium look
- Hero: white h1 instead of gradient-text, gold reserved for
  subtitle and CTA button only
- Gold accent now used sparingly: underlines, badges, buttons, hover
  states — not headings

src/components/sections/Hero.tsx

@@ -186,11 +186,11 @@ export function Hero({ data: hero }: HeroProps) {
         </div>
         */}
 
-        <h1 className="hero-title font-display text-4xl font-bold tracking-tight sm:text-6xl lg:text-8xl">
-          <span className="gradient-text">{hero.headline}</span>
+        <h1 className="hero-title font-display text-4xl font-bold tracking-tight text-white sm:text-6xl lg:text-8xl">
+          {hero.headline}
         </h1>
 
-        <p className="hero-subtitle mx-auto mt-5 max-w-xl text-lg text-gold-light sm:mt-8 sm:text-2xl">
+        <p className="hero-subtitle mx-auto mt-5 max-w-xl text-lg text-gold-light/90 sm:mt-8 sm:text-2xl">
           {hero.subheadline}
         </p>
 

src/components/ui/SectionHeading.tsx

@@ -8,7 +8,7 @@ export function SectionHeading({ children, className = "", centered = false }: S
   return (
     <div className={centered ? "text-center" : ""}>
       <h2
-        className={`font-display text-4xl font-bold uppercase tracking-wider sm:text-5xl lg:text-7xl gradient-text ${className}`}
+        className={`font-display text-4xl font-bold uppercase tracking-wider sm:text-5xl lg:text-7xl text-neutral-900 dark:text-white ${className}`}
       >
         {children}
       </h2>