/**
 * Thai Criminal Code - Sidebar Table of Contents Styles
 */

/* ─── Sidebar Container ─── */
.tcc-sidebar {
    width: var(--tcc-sidebar-width);
    flex-shrink: 0;
    background: var(--tcc-white);
    border-right: 1px solid var(--tcc-border-light);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    z-index: 50;
}

/* ─── Mobile Toggle ─── */
.tcc-sidebar-toggle {
    display: none;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--tcc-navy);
    color: var(--tcc-white);
    border: none;
    font-family: var(--tcc-font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
}

.tcc-sidebar-toggle-icon {
    width: 20px;
    height: 2px;
    background: var(--tcc-white);
    position: relative;
    display: block;
}

.tcc-sidebar-toggle-icon::before,
.tcc-sidebar-toggle-icon::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--tcc-white);
    left: 0;
}

.tcc-sidebar-toggle-icon::before { top: -6px; }
.tcc-sidebar-toggle-icon::after { top: 6px; }

/* ─── Sidebar Search ─── */
.tcc-sidebar-search {
    padding: 0.75rem;
    border-bottom: 1px solid var(--tcc-border-light);
}

.tcc-sidebar-search-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--tcc-border);
    border-radius: var(--tcc-radius);
    font-size: 0.8rem;
    font-family: var(--tcc-font);
    color: var(--tcc-text);
    transition: border-color var(--tcc-transition);
}

.tcc-sidebar-search-input:focus {
    outline: none;
    border-color: var(--tcc-gold);
}

/* ─── Sidebar Nav ─── */
.tcc-sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0;
    scrollbar-width: thin;
    scrollbar-color: var(--tcc-border) transparent;
}

.tcc-sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.tcc-sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.tcc-sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--tcc-border);
    border-radius: 3px;
}

/* ─── Tree Structure ─── */
.tcc-toc-tree,
.tcc-toc-children,
.tcc-toc-sections {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tcc-toc-children {
    padding-left: 0.5rem;
}

.tcc-toc-sections {
    padding-left: 1rem;
}

/* ─── Tree Nodes ─── */
.tcc-toc-node {
    display: flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    gap: 0.25rem;
}

.tcc-toc-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
    flex-shrink: 0;
    color: var(--tcc-text-muted);
    transition: all var(--tcc-transition);
    border-radius: 3px;
}

.tcc-toc-toggle:hover {
    background: var(--tcc-bg);
    color: var(--tcc-navy);
}

.tcc-toc-arrow {
    transition: transform 0.2s ease;
}

[aria-expanded="true"] > .tcc-toc-node .tcc-toc-arrow {
    transform: rotate(90deg);
}

.tcc-toc-link {
    display: flex;
    align-items: baseline;
    gap: 0.375rem;
    flex: 1;
    min-width: 0;
    font-size: 0.825rem;
    line-height: 1.4;
    color: var(--tcc-text);
    text-decoration: none;
    transition: color var(--tcc-transition);
}

a.tcc-toc-link:hover {
    color: var(--tcc-navy);
}

.tcc-toc-number {
    font-weight: 600;
    white-space: nowrap;
    color: var(--tcc-navy);
    font-size: 0.8rem;
}

.tcc-toc-name {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tcc-toc-range {
    font-size: 0.7rem;
    color: var(--tcc-text-muted);
    white-space: nowrap;
    margin-left: auto;
}

/* ─── Book Level ─── */
.tcc-toc-node-book {
    padding: 0.5rem 0.75rem;
    font-weight: 600;
}

.tcc-toc-node-book .tcc-toc-link {
    font-size: 0.85rem;
}

.tcc-toc-book {
    border-bottom: 1px solid var(--tcc-border-light);
}

.tcc-toc-book:last-child {
    border-bottom: none;
}

/* ─── Title Level ─── */
.tcc-toc-node-title {
    padding: 0.3rem 0.75rem;
}

.tcc-toc-node-title .tcc-toc-number {
    font-size: 0.75rem;
}

/* ─── Chapter Level ─── */
.tcc-toc-node-chapter {
    padding: 0.25rem 0.75rem;
}

.tcc-toc-node-chapter .tcc-toc-link {
    font-size: 0.8rem;
}

.tcc-toc-node-chapter .tcc-toc-number {
    font-size: 0.7rem;
}

/* ─── Section Level ─── */
.tcc-toc-section {
    padding: 0;
}

.tcc-toc-section-link {
    display: block !important;
    padding: 0.2rem 0.75rem 0.2rem 1.5rem;
    font-size: 0.78rem !important;
    color: var(--tcc-text-light) !important;
    border-left: 2px solid transparent;
    transition: all var(--tcc-transition);
}

.tcc-toc-section-link:hover {
    color: var(--tcc-navy) !important;
    background: var(--tcc-bg);
    border-left-color: var(--tcc-border);
}

/* ─── Active States ─── */
.tcc-toc-current > .tcc-toc-section-link {
    color: var(--tcc-navy) !important;
    font-weight: 600;
    background: rgba(212, 175, 55, 0.08);
    border-left-color: var(--tcc-gold);
}

.tcc-toc-active > .tcc-toc-node {
    background: rgba(0, 51, 102, 0.04);
}

/* ─── Filtered/Hidden State ─── */
.tcc-toc-filtered {
    display: none;
}

/* ─── Responsive ─── */
@media (max-width: 1023px) {
    .tcc-sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--tcc-border);
    }

    .tcc-sidebar-toggle {
        display: flex;
    }

    .tcc-sidebar-nav {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .tcc-sidebar.open .tcc-sidebar-nav {
        max-height: 60vh;
        overflow-y: auto;
    }

    .tcc-sidebar.open .tcc-sidebar-search {
        display: block;
    }

    .tcc-sidebar-search {
        display: none;
    }
}

/* ─── Sidebar Autocomplete Results ─── */
.tcc-sidebar-search .tcc-autocomplete-results {
    max-height: 50vh;
    font-size: 0.8rem;
    z-index: 100;
}

.tcc-sidebar-search .tcc-autocomplete-item {
    padding: 0.5rem 0.75rem;
}

.tcc-sidebar-search .tcc-ac-section-number {
    font-size: 0.75rem;
}

.tcc-sidebar-search .tcc-ac-snippet {
    font-size: 0.72rem;
}