:root{color-scheme:dark}body{margin:0;min-height:100vh;display:grid;place-items:center;background:#111214;color:#e8e8ea;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.entrada{display:grid;gap:16px;justify-items:center;text-align:center;padding:16px;max-width:420px}.entrada h1{margin:0;font-size:22px}.entrada p{margin:0;color:#a3a3a8;line-height:1.5}.entrada button{padding:10px 18px;border-radius:8px;border:0;background:#f2f2f3;color:#111;font-weight:600;cursor:pointer}