:root{--bg:#f7f8fa;--fg:#121721;--panel:#ffffff;--border:#d9e0ea}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:Segoe UI,Arial,sans-serif}main{max-width:960px;margin:0 auto;padding:2rem 1rem}.muted{color:#5a667a}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:1rem}form.card{display:grid;grid-gap:.75rem;gap:.75rem;max-width:520px}label{display:grid;grid-gap:.35rem;gap:.35rem;font-size:.95rem}input,select{padding:.65rem .8rem;border:1px solid var(--border);border-radius:10px;font-size:1rem}select{background:#ffffff}button{padding:.65rem .9rem;border:1px solid var(--border);background:#121721;color:#ffffff;border-radius:10px;font-size:1rem;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}a{color:inherit}