:root{color-scheme:dark}
body{margin:0;min-height:100vh;display:grid;place-items:center;background:#0b0d10;color:#e8eaed;font:16px/1.6 system-ui,-apple-system,sans-serif}
main{text-align:center;padding:2rem;max-width:36rem}
h1{font-size:clamp(2rem,8vw,4rem);margin:0 0 1rem;letter-spacing:-.03em}
.stamp{font-family:ui-monospace,monospace;font-size:.8rem;opacity:.5;margin-top:2rem}