:root{color-scheme:dark}*{margin:0;padding:0;box-sizing:border-box}body{min-height:100vh;display:grid;place-items:center;background:#0f172a;color:#e2e8f0;font-family:system-ui,sans-serif}main{text-align:center;max-width:520px;padding:24px}h1{font-weight:600;letter-spacing:-.02em;margin-bottom:16px}p{color:#94a3b8;margin:8px 0}a{color:#38bdf8;text-decoration:none;font-weight:500}a:hover{text-decoration:underline}