:root{--bg:#0f1115;--surface:#181b21;--border:#262a33;--text:#e6e8ec;--muted:#8b919c;--accent:#ff5b3a}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}body{display:grid;place-items:center;padding:2rem 1rem}.card{width:100%;max-width:520px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2rem 2rem 1.75rem;box-shadow:0 10px 40px rgba(0,0,0,.35)}.card h1{font-size:1.5rem;letter-spacing:-.01em}.card h1,.card p{margin:0 0 .75rem}.card p{color:var(--text)}.card .hint{margin-top:1.25rem;font-size:.875rem;color:var(--muted)}