:root{color-scheme:dark}body,html{height:100%;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#0f172a;color:#e2e8f0}.wrap{min-height:100%;display:flex;align-items:center;justify-content:center;padding:2rem}.card{text-align:center;padding:2rem 3rem;background:#111827;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.35);max-width:28rem}.card h1{margin:0 0 .5rem;font-size:2rem}.card p{margin:.25rem 0}.card .meta{opacity:.6;font-size:.9rem;margin-top:.75rem}code{background:#0b1220;padding:.15rem .4rem;border-radius:6px}