*,:before,:after{box-sizing:border-box}body{color:#212529;background:#fff;margin:0}.container{max-width:640px;margin:0 auto;padding:40px 20px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}h1{margin-bottom:24px;font-size:24px}h2{margin:0 0 12px;font-size:18px}.card{background:#f8f9fa;border:1px solid #dee2e6;border-radius:8px;margin-bottom:16px;padding:20px}.pass-text{color:#198754;font-weight:600}.hint{color:#6c757d;font-size:14px}code{background:#e9ecef;border-radius:4px;padding:2px 6px;font-size:14px}.btn{color:#fff;cursor:pointer;background:#0d6efd;border:none;border-radius:6px;margin-bottom:12px;padding:10px 20px;font-size:15px}.btn:hover{background:#0b5ed7}.btn:disabled{cursor:not-allowed;background:#6c757d}.steps{margin:12px 0 0;padding:0;list-style:none}.steps li{border-bottom:1px solid #e9ecef;align-items:center;gap:10px;padding:8px 0;font-size:15px;display:flex}.steps li:last-child{border-bottom:none}.icon{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:14px;display:inline-flex}.icon.idle{color:#6c757d;background:#e9ecef}.icon.running{color:#856404;background:#fff3cd;animation:1s infinite pulse}.icon.pass{color:#0f5132;background:#d1e7dd}.icon.fail{color:#842029;background:#f8d7da}.error-msg{color:#842029;margin-left:auto;font-size:13px}.error-box{color:#842029;background:#f8d7da;border-radius:8px;padding:16px}.loading{color:#6c757d}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}