/* TOC Styling */
#toc {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 250px;
    max-height: 80vh;
    overflow-y: auto;
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    padding: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    font-family: Arial, sans-serif;
    z-index: 1000;
    display: none; /* Initially hidden */
}
#toc .title {
    font-size: 1.25rem;
    margin: 0 auto; /* Centers the element horizontally */
    padding: 0;
    cursor: pointer;
    display: flex;
    justify-content: center; /* Aligns content horizontally */
    align-items: center; /* Aligns content vertically */
    text-align: center; /* Centers text content inside */
    width: 100%; /* Ensures it spans the container width */
}

#toc ul {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
    display: none; /* Initially collapsed */
    border-top: 1px solid #888;
}
#toc ul.visible {
    padding-top: .75rem;
    display: block; /* Show when expanded */
}
#toc ul li {
    margin: 0;
}
#toc ul li a {
    text-decoration: none;
    color: #007bff;
}
#toc ul li a:hover {
    text-decoration: underline;
}