:root{--bg:#0d1117;--panel:#161b22;--line:#272e39;--ink:#e9edf3;--muted:#8b98a9;--accent:#ffc73a}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;min-height:100dvh;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}main{place-items:center;min-height:100dvh;padding:2rem 1.25rem;display:grid}.card{background:var(--panel);border:1px solid var(--line);text-align:center;border-radius:14px;width:min(34rem,100%);padding:2rem}.brand{letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin:0 0 1rem;font-size:.75rem}h1{margin:0 0 .75rem;font-size:1.5rem;line-height:1.25}p{color:var(--muted);margin:0 0 .5rem;line-height:1.6}code{border:1px solid var(--line);color:var(--ink);background:#0b0f15;border-radius:6px;padding:.1rem .4rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}