/* ============================================================ TopInfra · UI layer — componentes portados de 21st.dev a CSS/JS vanilla (Blur Fade, Text Reveal, Number Ticker, Marquee, Spotlight Card, 3D Tilt, Timeline, Border Beam, Shimmer Button, Aurora, Scroll Progress, Floating Navbar, Curtain/Preloader, View Transitions, Dock). Se carga DESPUÉS del