k;
            font-weight: normal;
        }
        
        .collapse-icon {
            transition: transform 0.3s;
        }
        
        .rotated {
            transform: rotate(180deg);
        }
        
        .table-container {
            overflow-x: auto;
        }
        
        .sticky-top {
            top: 20px;
        }
        
        @media (max-width: 768px) {
            .sticky-top {
                position: relative;
            }
        }
    </style>
</head>
<body>
    <!