feat: comprehensive light theme support across entire site

- CSS foundation: theme-aware scrollbars, section glows, glass cards with
  gold shadows, stronger animated borders and glow effects for light mode
- Hero: consistent dark-video treatment for both themes, brighter gold
  gradient text, glowing CTA button
- Gradient text: auto-switch to warm gold tones on light backgrounds via
  html:not(.dark) selector
- Team profile: inverted ambient photo bg with white overlay for light,
  dark text/borders, gold-dark labels for contrast
- All sections: text-neutral-500→600 upgrades for WCAG AA contrast,
  gold shadow accents on cards (About, Pricing, FAQ, DayCard, News)
- Admin: replaced hardcoded #c9a96e with theme tokens, fixed select
  options, array editor borders, booking badges contrast
- Header: white text on transparent hero, dark text after scroll
- UI components: BackToTop, FloatingHearts, ShowcaseLayout tabs,
  SignupModal, NewsModal, GroupCard adapted for light backgrounds
- Updated CLAUDE.md to reflect dual theme support

src/components/sections/team/TeamMemberInfo.tsx

@@ -24,7 +24,7 @@ export function TeamMemberInfo({ members, activeIndex, onSelect, onOpenBio }: Te
           href={member.instagram}
           target="_blank"
           rel="noopener noreferrer"
-          className="inline-flex items-center gap-1.5 text-sm text-white/40 transition-colors hover:text-gold-light"
+          className="inline-flex items-center gap-1.5 text-sm text-neutral-500 transition-colors hover:text-gold-dark dark:text-white/40 dark:hover:text-gold-light"
         >
           <Instagram size={14} />
           {member.instagram.split("/").filter(Boolean).pop()}
@@ -32,7 +32,7 @@ export function TeamMemberInfo({ members, activeIndex, onSelect, onOpenBio }: Te
       )}
 
       {(member.shortDescription || member.description) && (
-        <p className="mt-3 text-sm leading-relaxed text-white/55 line-clamp-3">
+        <p className="mt-3 text-sm leading-relaxed text-neutral-600 dark:text-white/55 line-clamp-3">
           {member.shortDescription || member.description}
         </p>
       )}
@@ -63,7 +63,7 @@ export function TeamMemberInfo({ members, activeIndex, onSelect, onOpenBio }: Te
               <span className={`relative block rounded-full transition-all duration-500 ${
                 isActive
                   ? "w-3 h-3 bg-gold shadow-[0_0_8px_rgba(201,169,110,0.5)]"
-                  : "w-2 h-2 bg-white/20 group-hover:bg-white/40 group-hover:scale-125"
+                  : "w-2 h-2 bg-neutral-400 group-hover:bg-neutral-500 group-hover:scale-125 dark:bg-white/20 dark:group-hover:bg-white/40"
               }`} />
             </button>
           );