body{font-family:Arial,sans-serif;background-color:#f4f4f9;color:#333;padding:20px}.container{max-width:800px;margin:auto;background:#fff;padding:20px;border-radius:8px;box-shadow:0 4px 8px #0000001a}h1{color:#444;text-align:center}.input-panel,.query-panel,.answer-panel{margin-bottom:20px;padding:15px;border:1px solid #ddd;border-radius:6px}textarea{width:100%;height:150px;padding:10px;border:1px solid #ccc;border-radius:4px;margin-bottom:10px;box-sizing:border-box}input[type=text]{width:100%;padding:10px;border:1px solid #ccc;border-radius:4px;box-sizing:border-box;margin-bottom:10px}button{padding:10px 15px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}button:hover{background-color:#0056b3}.loading{text-align:center;color:#555;margin:20px 0}.error{color:red;text-align:center;margin-bottom:20px}.answer{background-color:#e9ecef;padding:15px;border-radius:4px;white-space:pre-wrap}.sources-list{list-style-type:none;padding:0}.sources-list li{margin-bottom:10px;padding:10px;background:#f8f9fa;border-left:3px solid #007bff}.metrics{font-size:.9em;color:#888;text-align:right;margin-top:10px}