const Nav = () => { const t = window.ATTO_TOKENS; const [scrolled, setScrolled] = React.useState(false); const [menuOpen, setMenuOpen] = React.useState(false); React.useEffect(() => { const onScroll = () => setScrolled(window.scrollY > 20); window.addEventListener('scroll', onScroll); return () => window.removeEventListener('scroll', onScroll); }, []); return ( ); }; window.Nav = Nav;