/* Fuzue logo: invert in dark mode so it stays visible */
[data-theme="dark"] img[alt="Fuzue Tech"] {
    filter: invert(1) brightness(1.2);
}

/* ── Global navigation sidebar ─────────────────────────────────────────── */

.densitree-global-nav .toctree-wrapper {
    margin: 0;
}

/* Section caption headers (Getting Started, Tutorials, …) */
.densitree-global-nav p.caption {
    margin: 0.9rem 0 0.2rem;
}

.densitree-global-nav p.caption:first-of-type {
    margin-top: 0;
}

.densitree-global-nav .caption-text {
    display: block;
    font-weight: 700;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--pst-color-text-muted);
    padding: 0 0.5rem;
}

/* Page links within each section */
.densitree-global-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.densitree-global-nav li.toctree-l1 > a {
    display: block;
    padding: 0.22rem 0.75rem;
    color: var(--pst-color-text-base);
    text-decoration: none;
    font-size: 0.9rem;
    border-radius: 0.25rem;
    transition: color 0.15s, background-color 0.15s;
}

.densitree-global-nav li.toctree-l1 > a:hover {
    color: var(--pst-color-primary);
    background-color: var(--pst-color-surface);
    text-decoration: none;
}

/* Active (current) page */
.densitree-global-nav li.toctree-l1.current > a {
    color: var(--pst-color-primary);
    font-weight: 500;
    background-color: var(--pst-color-surface);
}