:root{color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,sans-serif}body{margin:0;min-height:100dvh;display:grid;place-items:center}main{text-align:center;padding:1.5rem}h1{margin:0 0 .5rem;font-size:clamp(2rem,6vw,3.5rem)}#greeting{margin:0;opacity:.7;font-variant-numeric:tabular-nums}