body{font-family:Segoe UI,sans-serif;background-color:#f5f6fa;margin:0;padding:0;display:flex;justify-content:center}#app,.container{max-width:700px;width:100%;padding:20px;background-color:#fff;margin-top:30px;box-shadow:0 2px 10px #0000001a;border-radius:12px}h2{text-align:center;color:#2c3e50;margin-bottom:16px}form input,form select{width:100%;padding:10px;margin:6px 0 12px;border:1px solid #ccc;border-radius:6px;box-sizing:border-box}form button{width:100%;padding:12px;background-color:#3498db;color:#fff;border:none;border-radius:6px;font-size:16px;cursor:pointer}form button:hover{background-color:#2980b9}table{width:100%;border-collapse:collapse;margin-top:20px;font-size:14px;border-radius:8px;overflow:hidden;box-shadow:0 2px 6px #0000001a}th,td{padding:10px;border-bottom:1px solid #ddd;text-align:center}th{background-color:#ecf0f1}button{padding:6px 10px;margin:2px;font-size:14px;border-radius:6px;border:none;cursor:pointer}button:hover{opacity:.9}button:nth-child(1){background-color:#2ecc71;color:#fff}button:nth-child(2){background-color:#e74c3c;color:#fff}td input,td select{width:100%;max-width:150px;box-sizing:border-box;padding:6px;font-size:14px}@media screen and (max-width: 600px){table,thead,tbody,th,td,tr{display:block}tr{margin-bottom:15px;padding:10px;background-color:#fff;border-radius:8px;box-shadow:0 1px 4px #0000001a}td{padding:8px 10px;display:flex;justify-content:space-between}th{display:none}td:before{content:attr(label);font-weight:700;color:#555;width:40%}}