/* Dark mode colour override — blue accent instead of yellow */
html[data-theme="dark"] {
    --pst-color-primary: #64b5f6;
    --pst-color-secondary: #64b5f6;
    --pst-color-link: #64b5f6;
    --pst-color-link-hover: #90caf9;
    --pst-color-accent: #64b5f6;
}

/* Sidebar navigation */
.sidebar-nav {
    padding: 1rem 0;
}

.sidebar-sections {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-section {
    margin-bottom: 0.25rem;
}

.sidebar-section-title {
    display: block;
    padding: 0.5rem 1.5rem;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--pst-color-text-base);
    text-decoration: none;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.sidebar-section-title:hover {
    background: rgba(100, 181, 246, 0.05);
}

.sidebar-section-title.active {
    color: var(--pst-color-primary);
}

.sidebar-items {
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
}

.sidebar-items.show {
    display: block;
}

.sidebar-items li a {
    display: block;
    padding: 0.35rem 1.5rem 0.35rem 2.25rem;
    font-size: 0.85rem;
    color: var(--pst-color-text-muted);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.sidebar-items li a:hover {
    color: var(--pst-color-text-base);
    background: rgba(100, 181, 246, 0.05);
}

.sidebar-items li a.current {
    color: var(--pst-color-primary);
    border-left-color: var(--pst-color-primary);
    font-weight: 500;
}

.expanded .sidebar-items {
    display: block;
}

/* Tool sub-navigation */
.sidebar-tool {
    margin-left: 0;
}

.sidebar-tool-title {
    display: block;
    padding: 0.35rem 1.5rem 0.35rem 2.25rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--pst-color-text-muted);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.sidebar-tool-title:hover {
    color: var(--pst-color-text-base);
    background: rgba(100, 181, 246, 0.05);
}

.sidebar-tool-title.current {
    color: var(--pst-color-primary);
}

.sidebar-subitems {
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
}

.sidebar-subitems.show {
    display: block;
}

.sidebar-subitems li a {
    display: block;
    padding: 0.3rem 1.5rem 0.3rem 3rem;
    font-size: 0.8rem;
    color: var(--pst-color-text-muted);
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar-subitems li a:hover {
    color: var(--pst-color-text-base);
}

.sidebar-subitems li a.current {
    color: var(--pst-color-primary);
    font-weight: 500;
}

/* Hide RST title when hero banner is present */
h1:has(+ .skao-hero) {
    display: none;
}