/* ==========================================================================
   COMPONENT: blog-toc (table of contents)
   ========================================================================== */
.bc-blog-toc {
    background: var(--glass-panel);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    max-width: 280px;
}
.bc-blog-toc__label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    margin-bottom: 1rem;
}
.bc-blog-toc ul { list-style: none; padding: 0; }
.bc-blog-toc li { margin-bottom: 0.5rem; }
.bc-blog-toc li.level-3 { padding-left: 1rem; }
.bc-blog-toc a {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    text-decoration: none;
    line-height: var(--leading-snug);
    transition: color var(--duration-fast);
    display: block;
    padding: 0.25rem 0;
    border-left: 2px solid transparent;
    padding-left: 0.75rem;
    margin-left: -0.75rem;
}
.bc-blog-toc a:hover,
.bc-blog-toc a.active {
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}