const BrainMark = ({ size = 30, maskId = "brain-mask" }) => ( ); const Nav = ({ onBookCall }) => { const [stuck, setStuck] = React.useState(false); const [menuOpen, setMenuOpen] = React.useState(false); React.useEffect(() => { const onScroll = () => setStuck(window.scrollY > 8); window.addEventListener("scroll", onScroll, { passive: true }); onScroll(); return () => window.removeEventListener("scroll", onScroll); }, []); const closeMenu = () => setMenuOpen(false); return ( ); }; window.Nav = Nav;