Redesign website: dark tech aesthetic → light, warm, approachable

Replace dark glass-morphism theme with clean light design targeting
families and everyday users instead of developers.

Remove: floating gradient orbs, scroll progress bar, gradient text,
neon glow shadows, glass-morphism cards, backdrop-filter fallback block.

Add: white background with alternating #f8f7ff sections, soft shadow
cards with light borders, pastel circle icon backgrounds, natural
drop shadow on phone mockup, subtle hover lifts without glow effects.

Author: one-kash