*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:#f5f5f7;color:#1a1a1a}.app{max-width:480px;margin:0 auto;padding:16px}h1{font-size:1.25rem;margin:0 0 16px}.card{background:#fff;border-radius:12px;padding:16px;margin-bottom:12px;box-shadow:0 1px 3px #00000014}button{display:block;width:100%;padding:12px;border:none;border-radius:10px;background:#5856d6;color:#fff;font-size:1rem;cursor:pointer;margin-bottom:8px}button:disabled{opacity:.5}.result{white-space:pre-wrap;font-size:.95rem;line-height:1.5}.quota{font-size:.85rem;color:#666;margin-bottom:12px}.error{color:#ff3b30}