/* =============================================================
   4. LEFT SIDEBAR (TOC)
   ============================================================= */

.pg-wiki-sidebar-left {
    width: 240px;
    flex-shrink: 0;
    position: sticky;
    top: var(--pg-header-height);
}

.pg-wiki-toc {
    background: var(--pg-white);
    border: 1px solid var(--pg-border-light);
    border-radius: 2px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.pg-wiki-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--pg-border-light);
}

.pg-wiki-toc-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--pg-grey-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0;
}

.pg-wiki-toc-reading-time {
    font-size: 11px;
    font-weight: 500;
    color: var(--pg-galaxy);
    background: var(--pg-galaxy-light-bg);
    padding: 2px 8px;
    border-radius: 2px;
}

.pg-wiki-toc-nav {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.pg-wiki-toc-nav a {
    display: block;
    padding: 7px 12px;
    font-size: 13px;
    color: var(--pg-grey);
    text-decoration: none;
    border-radius: 2px;
    line-height: 1.4;
    transition: all 0.15s;
    border-left: 2px solid transparent;
    margin-left: -2px;
}

.pg-wiki-toc-nav a:hover {
    background: var(--pg-galaxy-light);
    color: var(--pg-galaxy);
}

.pg-wiki-toc-nav a.pg-wiki-toc-active {
    background: var(--pg-galaxy-light-bg);
    color: var(--pg-galaxy);
    font-weight: 600;
    border-left-color: var(--pg-galaxy);
}

.pg-wiki-toc-nav a.pg-wiki-toc-h3 {
    padding-left: 24px;
    font-size: 12px;
}

/* Focus visible states */
.pg-wiki-toc-link:focus-visible,
.pg-wiki-cat-parent:focus-visible,
.pg-wiki-cat-child:focus-visible,
.pg-wiki-related-card:focus-visible,
.pg-wiki-nav-prev:focus-visible,
.pg-wiki-nav-next:focus-visible {
    outline: 2px solid var(--pg-galaxy);
    outline-offset: 2px;
    border-radius: 2px;
}

.pg-wiki-breadcrumb a:focus-visible {
    outline: 2px solid var(--pg-galaxy);
    outline-offset: 2px;
    border-radius: 2px;
}