body{margin:0;background:#f4f7fb;color:#172033;font:14px/1.5 system-ui}header{display:flex;justify-content:space-between;padding:18px 24px;background:#101828;color:#fff}h1{margin:0;font-size:20px}nav{padding:12px 24px;background:#fff;border-bottom:1px solid #ddd}button{padding:9px 12px;margin:4px;border:0;border-radius:8px;background:#3157d5;color:#fff;cursor:pointer}main{max-width:1100px;margin:auto;padding:20px}.hidden{display:none}.card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:16px;margin:12px 0}.grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.grid button,.grid textarea{grid-column:1/-1}input,select,textarea{padding:10px;border:1px solid #ccd3df;border-radius:8px;font:inherit}.table{overflow:auto;background:#fff;border-radius:10px}.table table{width:100%;border-collapse:collapse}.table th,.table td{padding:9px;border-bottom:1px solid #eee;text-align:left}pre{white-space:pre-wrap;background:#101828;color:#e5e7eb;padding:14px;border-radius:10px}#msg{position:fixed;right:18px;bottom:18px;background:#101828;color:#fff;padding:12px;border-radius:8px;display:none}@media(max-width:700px){.grid{grid-template-columns:1fr}}