// nav.jsx — top navigation const { useState: useNavState, useEffect: useNavEffect } = React; function Nav() { const [scrolled, setScrolled] = useNavState(false); useNavEffect(() => { const onScroll = () => setScrolled(window.scrollY > 24); window.addEventListener('scroll', onScroll, { passive: true }); return () => window.removeEventListener('scroll', onScroll); }, []); return ( ); } function NurtliMark({ size = 30 }) { return ( {/* leaf curl */} ); } Object.assign(window, { Nav, NurtliMark });