:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#172033;background:#fff;color-scheme:light}
body{margin:0;min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:24px;box-sizing:border-box}
h1{margin:0;text-align:center;font-size:clamp(1.75rem,5vw,3rem);font-weight:600;line-height:1.2}