*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:#f4f5f7;color:#1a1a1a}a{color:#2563eb}input,select,button{font:inherit;padding:.5rem;border:1px solid #ccc;border-radius:4px}button{cursor:pointer;background:#2563eb;color:#fff;border:none}button:disabled{background:#94a3b8;cursor:not-allowed}button.secundario{background:#64748b}button.perigo{background:#dc2626}table{border-collapse:collapse;width:100%;background:#fff}th,td{padding:.5rem;border-bottom:1px solid #e5e7eb;text-align:left}.erro{color:#dc2626;margin:.5rem 0}.cartao{background:#fff;padding:1.5rem;border-radius:8px;max-width:480px;margin:2rem auto}.form-linha{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.75rem}.nav{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;background:#fff;border-bottom:1px solid #e5e7eb}.nav a{margin-right:1rem;text-decoration:none}.conteudo{padding:1.5rem}