// Confronto section background — wheelbarrow blueprint with divider glow function ConfrontoBg() { const ref = React.useRef(null); const [visible, setVisible] = React.useState(false); React.useEffect(() => { const o = new IntersectionObserver( ([e]) => { if (e.isIntersecting) { setVisible(true); o.disconnect(); } }, { threshold: 0.15 } ); if (ref.current) o.observe(ref.current); return () => o.disconnect(); }, []); return (

{visible && }

); } window.ConfrontoBg = ConfrontoBg;