body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;margin:0;padding:16px;background:#f7f7fb;color:#111}.container{max-width:1100px;margin:0 auto}header h1{margin:0 0 4px}.muted{color:#666;margin:0 0 12px}.controls{display:flex;gap:8px;margin:12px 0}.controls input{flex:1;padding:8px;border:1px solid #ddd;border-radius:6px}.controls button{padding:8px 12px;border:none;background:#2563eb;color:#fff;border-radius:6px;cursor:pointer}.error{background:#ffe6e6;color:#900;padding:8px;border-radius:6px;margin-bottom:12px}table{width:100%;border-collapse:collapse;background:#fff;border-radius:6px;overflow:hidden}thead{background:#f1f5f9}th,td{padding:8px 10px;border-bottom:1px solid #eee;text-align:left;font-size:13px}tr:hover td{background:#fcfcff}footer{margin-top:12px}