/* Table of Contents - Modular Component */
/* Dependent on: typography.css variables */

:root {
    --toc-drawer-width: 280px;
    --toc-z-index: 1000;
}

/* Floating Trigger Button */
.toc-trigger {
    position: fixed;
    right: 0;
    top: 20%;
    transform: translateY(-50%);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    width: 45px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px 0 0 20px;
    box-shadow: var(--box-shadow);
    cursor: pointer;
    z-index: var(--toc-z-index);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
    border-right: none;
}

.toc-trigger:hover {
    width: 50px;
    background-color: var(--bg-secondary);
}

.toc-trigger svg {
    opacity: 0.9;
}

/* Drawer Container */
.post-toc-drawer {
    position: fixed;
    right: 0;
    top: 0;
    width: var(--toc-drawer-width);
    height: 100dvh;
    background-color: var(--bg-primary);
    z-index: calc(var(--toc-z-index) + 2);
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.post-toc-drawer.open {
    transform: translateX(0);
    box-shadow: var(--box-shadow);
}

/* Drawer Header */
.toc-drawer-header {
    height: 53px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-primary);
    cursor: pointer;
    box-sizing: border-box;
}

.toc-close-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: var(--font-13);
    font-family: var(--fontB);
    transition: color 0.2s;
}

.toc-close-btn:hover {
    color: var(--error-color);
}

.toc-close-btn span {
    font-weight: var(--font-weight-normal);
}

@media (max-width: 768px) {
    .toc-drawer-header {
        height: 50px;
    }
}

.toc-drawer-header h3 {
    margin: 0;
    font-size: var(--font-14);
    font-family: var(--fontH);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: var(--font-weight-normal);
}

/* Drawer Body (Content) */
.toc-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 15px 20px;
    background-color: var(--bg-primary);
}

/* TOC Navigation Items */
.toc-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: h2-counter;
}

.toc-nav li.toc-item-h2 {
    counter-increment: h2-counter;
    counter-reset: h3-counter;
    margin-bottom: 12px;
}

.toc-nav li.toc-item-h3 {
    counter-increment: h3-counter;
    counter-reset: h4-counter;
    margin-bottom: 8px;
}

.toc-nav li.toc-item-h4 {
    counter-increment: h4-counter;
    margin-bottom: 8px;
}

.toc-link {
    display: flex;
    align-items: flex-start;
    font-size: var(--font-14);
    font-family: var(--fontB);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    gap: 5px;
}

.toc-link::before {
    flex-shrink: 0;
    color: var(--text-secondary);
    font-size: var(--font-14);
    font-family: var(--fontB);
    min-width: 1.5em;
    transition: color 0.2s ease;
}

.toc-item-h2>.toc-link {
    color: var(--text-secondary);
    font-weight: var(--font-weight-normal);
}

.toc-item-h2>.toc-link::before {
    content: counter(h2-counter) ".";
    color: var(--text-secondary);
    font-weight: var(--font-weight-normal);
}

.toc-item-h3>.toc-link::before {
    content: counter(h2-counter) "." counter(h3-counter);
}

.toc-item-h4>.toc-link::before {
    content: counter(h2-counter) "." counter(h3-counter) "." counter(h4-counter);
}

.toc-link:hover,
.toc-link:hover::before {
    color: var(--text-primary);
}

.toc-link.active,
.toc-link.active::before {
    color: var(--primary-color) !important;
}

/* Indentation */
.toc-item-h3 {
    padding-left: 20px;
}

.toc-item-h4 {
    padding-left: 35px;
}

/* Custom Scrollbar for Drawer Body */
.toc-drawer-body::-webkit-scrollbar {
    width: 4px;
}

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

.toc-drawer-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.toc-drawer-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Layout adjustments */
.post-toc-sidebar {
    display: none !important;
}

.post-only-main {
    max-width: 100% !important;
    width: 100% !important;
    flex: 1 !important;
}

.toc-trigger.hidden {
    display: none;
}