:root{color-scheme:light dark}
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0;display:grid;place-items:center;min-height:100vh}
.card{max-width:560px;width:92%;padding:32px 28px;border:1px solid #0002;border-radius:16px;box-shadow:0 8px 32px #0001}
h1{margin:0 0 8px}
a{color:#2563eb}