#toc {
    background: #f8f9fa;
    border-radius: 5px;
    padding: 1rem;
    z-index: 1000;
}

#toc ul {
    list-style: none;
    padding: 0;
}

#toc li {
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    #toc {
        position: static;
    }
}