// HausNav — sticky header const HausNav = ({ onStartProject }) => { const [scrolled, setScrolled] = React.useState(false); const [mobileOpen, setMobileOpen] = React.useState(false); React.useEffect(() => { const fn = () => setScrolled(window.scrollY > 50); window.addEventListener('scroll', fn); return () => window.removeEventListener('scroll', fn); }, []); const navBg = scrolled ? 'rgba(255,250,243,0.95)' : 'transparent'; const navBorder = scrolled ? '1px solid rgba(232,217,197,0.6)' : '1px solid transparent'; return ( ); }; Object.assign(window, { HausNav });