body {margin: 0;font-family: Arial, sans-serif;background: #f8f9fa;}.container {display: flex;}.sidebar {width: 250px;background: #fff;padding: 20px;border-right: 1px solid #ddd;height: 100vh;}.sidebar h2 {margin-bottom: 10px;}.sidebar ul {list-style: none;padding: 0;}.sidebar ul li {margin-bottom: 10px;}.sidebar ul li.active a {color: red;font-weight: bold;}.sidebar a {text-decoration: none;color: #333;}.telegram-btn {display: block;margin-top: 20px;padding: 10px;background: red;color: white;text-align: center;border-radius: 5px;text-decoration: none;}.main-panel {flex: 1;padding: 30px;}.topup-form {margin: 20px 0;}.topup-form input {padding: 8px;margin-right: 10px;width: 200px;}.topup-form button {padding: 8px 12px;margin-right: 5px;background: red;color: white;border: none;cursor: pointer;}table {width: 100%;border-collapse: collapse;margin-top: 15px;background: #fff;}table th, table td {border: 1px solid #ddd;padding: 10px;text-align: left;}