.page-navigation {
    background: #fff;
    padding: 0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* When used in sidebar context, parent handles positioning */
.page-sidebar .page-navigation {
    position: relative;
    top: auto;
}

.page-navigation__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.page-navigation__item {
    margin: 0;
}

.page-navigation__link {
    display: block;
    padding: 0.75rem 1rem;
    color: #1a1a1a;
    text-decoration: none;
    background-color: #fff;
    border-left: 4px solid transparent;
    transition: background-color 0.2s, border-color 0.2s;
    position: relative;
}

.page-navigation__link:hover {
    background-color: #f5f5e8; /* Light yellow-green background */
    border-left-color: #4a7916; /* Green left border - using theme medium-green */
}

.page-navigation__link:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

/* Active state when scrolling */
.page-navigation__link.active {
    background-color: #f5f5e8; /* Light yellow-green background */
    border-left-color: #4a7916; /* Green left border - using theme medium-green */
    color: #1a1a1a;
}

/* Active state for current page (e.g., subtopic navigation) */
.page-navigation__link--active {
    background-color: #f5f5e8; /* Light yellow-green background */
    border-left-color: #4a7916; /* Green left border - using theme medium-green */
    color: #1a1a1a;
    font-weight: 600;
}

/* Category headers for grouped navigation */
.page-navigation__category {
    margin: 0;
    overflow: hidden;
}

.page-navigation__category:first-child {
    margin-top: 0;
}

.page-navigation__category-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1rem;
    color: #1a1a1a;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: #fff;
    border: none;
    border-bottom: 1px solid #e5e5e5;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.2s;
}



.page-navigation__category-title:hover {
    background-color: #f0f0f0;
}

.page-navigation__category-title:focus {
    outline: 2px solid #0066cc;
    outline-offset: -2px;
}

.page-navigation__category-title span:first-child {
    flex: 1;
}

.page-navigation__category-caret {
    display: inline-block;
    width: 20px;
    height: 20px;
    background-image: url('../../images/chevron-down.svg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    transition: transform 0.3s ease;
    transform: rotate(0deg);
    flex-shrink: 0;
    margin-left: 0.5rem;
}

.page-navigation__category.open .page-navigation__category-caret {
    transform: rotate(180deg);
}

.page-navigation__category-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.page-navigation__category.open .page-navigation__category-content {
    max-height: 5000px;
}

.page-navigation__category-list {
    list-style: none;
    margin: 0;
    padding: 0;
}