/* --- Common Knowledge Hero Section --- */
.detail-hero {
    position: relative;
    padding: 3rem 0;
    margin-bottom: 3rem;
    background-color: var(--background-color);
    border-bottom: 1px solid var(--nav-border-color);
}

.detail-hero h1 {
    color: var(--header-color);
}

/* Breadcrumb Styles */
.detail-hero .breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.detail-hero .breadcrumb-item {
    display: flex;
    align-items: center;
}

.detail-hero .breadcrumb-item a {
    color: var(--text-muted-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.detail-hero .breadcrumb-item a:hover {
    color: var(--accent-color);
}

.detail-hero .breadcrumb-item.active {
    font-size: 0.9rem;
    color: var(--text-color);
}

/* Dark Mode Overrides */
[data-bs-theme="dark"] .detail-hero {
    background-color: var(--background-color);
    border-bottom-color: var(--nav-border-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .detail-hero {
        padding: 2rem 0;
        margin-bottom: 2rem;
    }
}

/* --- Layout Structure (Common Sidebar) --- */
.toc-sidebar {
    position: sticky;
    top: 5rem; /* adjusted for navbar */
    padding-left: 2rem;
    border-left: 1px solid var(--nav-border-color);
}

/* --- Sticky Navigation (TOC) --- */
.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toc-link {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-muted-color);
    text-decoration: none;
    font-size: 0.95rem;
    border-radius: 6px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.toc-link:hover {
    color: var(--accent-color);
    background-color: rgba(var(--accent-color-rgb), 0.05);
}

.toc-link.active {
    color: var(--accent-color);
    font-weight: 600;
    border-left-color: var(--accent-color);
    background-color: rgba(var(--accent-color-rgb), 0.08);
}

/* --- Sidebar Sublinks --- */
.toc-sublink {
    color: var(--text-muted-color);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 2px solid transparent;
    display: block;
    font-size: 0.85rem;
    padding-left: 1.5rem;
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.toc-sublink:hover,
.toc-sublink.active {
    color: var(--accent-color);
    background-color: transparent;
    border-left-color: var(--accent-color);
}

.toc-sublink.active {
    font-weight: 600;
    border-left-color: var(--accent-color);
}