:root{color-scheme:light dark;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#101a2c;color:#eef3fc}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;padding:24px}main{max-width:600px;padding:40px;border:1px solid #34415a;border-radius:16px;background:#17243b}.brand{font-size:13px;letter-spacing:.12em;color:#a7c8fb;font-weight:650}h1{font-size:30px;line-height:1.2}p{font-size:16px;line-height:1.6}a{display:inline-block;color:#b4d2ff;margin-top:18px;font-size:16px;text-underline-offset:4px}@media(max-width:480px){main{padding:24px}h1{font-size:26px}}