/* Right sidebar table of contents */
.page-toc {
    position: fixed;
    right: 20px;
    top: 80px;
    width: 250px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 15px;
    background: transparent;
    border: none;
    border-radius: 4px;
    font-size: 0.85em;
    z-index: 100;
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.page-toc.collapsed {
    opacity: 0;
    visibility: hidden;
    transform: translateX(20px);
}

.toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.toc-title {
    font-weight: 600;
    color: var(--fg);
    font-size: 1.1em;
}

.toc-toggle {
    background: none;
    border: none;
    color: var(--fg);
    cursor: pointer;
    font-size: 1.2em;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.toc-toggle:hover {
    opacity: 1;
}

.toc-toggle-btn {
    position: fixed;
    right: 20px;
    top: 80px;
    width: 40px;
    height: 40px;
    background: var(--bg);
    border: 1px solid var(--table-border-color);
    border-radius: 4px;
    color: var(--fg);
    cursor: pointer;
    font-size: 1.2em;
    align-items: center;
    justify-content: center;
    z-index: 99;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateX(20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.toc-toggle-btn:hover {
    opacity: 0.9 !important;
}

.toc-toggle-btn.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    display: flex;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-item {
    margin: 0;
    padding: 0;
}

.toc-link {
    display: block;
    padding: 4px 0;
    color: var(--fg) !important;
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.2s, padding-left 0.2s;
}

.toc-link:hover {
    opacity: 1;
    padding-left: 4px;
}

.toc-link:visited {
    color: var(--fg) !important;
}

.toc-link.active {
    opacity: 1;
    font-weight: 600;
    color: var(--fg) !important;
}

/* Indentation for different header levels */
.toc-level-1 { padding-left: 0; }
.toc-level-2 { padding-left: 0; }
.toc-level-3 { padding-left: 15px; }
.toc-level-4 { padding-left: 30px; }
.toc-level-5 { padding-left: 45px; }
.toc-level-6 { padding-left: 60px; }

/* Hide on smaller screens */
@media (max-width: 1400px) {
    .page-toc {
        display: none;
    }
}

/* Adjust content margin to prevent overlap */
@media (min-width: 1400px) {
    .content {
        margin-right: 280px;
    }
}

/* Custom scrollbar for TOC */
.page-toc::-webkit-scrollbar {
    width: 6px;
}

.page-toc::-webkit-scrollbar-track {
    background: transparent;
}

.page-toc::-webkit-scrollbar-thumb {
    background: var(--scrollbar);
    border-radius: 3px;
}

.page-toc::-webkit-scrollbar-thumb:hover {
    background: var(--links);
}