.asset-library {
    padding: 0 16px;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.asset-library h3 {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--sub-text);
    margin: 24px 16px 12px;
    white-space: nowrap;
    font-weight: 800;
}

.sidebar.collapsed .asset-library h3 {
    opacity: 0;
}

.asset-category {
    margin-bottom: 8px;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--item-bg);
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s;
}

.category-header:hover {
    background: var(--item-hover-bg);
}

.category-header span {
    font-size: 11px;
    font-weight: 800;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-header i {
    font-size: 10px;
    color: var(--sub-text);
    transition: transform 0.3s;
}

.asset-category.active .category-header i {
    transform: rotate(180deg);
}

.category-content {
    display: none;
    padding: 12px 0;
}

.asset-category.active .category-content {
    display: block;
}

.sidebar.collapsed .category-content {
    display: none !important; /* Always hide content in sidebar when collapsed */
}

.asset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 0 8px;
}

.asset-item {
    background: var(--item-bg);
    border: 1px solid var(--panel-border);
    padding: 12px;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: grab;
    transition: all 0.3s;
    min-width: 0;
}

.asset-item span {
    font-size: 9px;
    color: var(--text-color);
    text-align: center;
    word-break: break-all;
    line-height: 1.3;
    opacity: 0.8;
}

.sidebar.collapsed .asset-item span {
    display: none;
}

.asset-item:hover {
    background: var(--item-hover-bg);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.asset-item img {
    pointer-events: none;
}

/* Fixed Category Optimization */
.fixed-category .asset-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.fixed-category .asset-item {
    padding: 8px;
    height: 44px;
    width: 44px;
    justify-content: center;
}

.fixed-category .asset-item span {
    display: none;
}

.fixed-category .asset-item i,
.fixed-category .asset-item img {
    margin-bottom: 0 !important;
}

.category-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin: 20px 0;
    position: relative;
}

.category-divider::after {
    content: '-';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--sidebar-bg);
    padding: 0 10px;
    font-size: 10px;
    color: var(--sub-text);
    font-weight: 800;
}
.asset-group-label {
    font-size: 9px;
    font-weight: 800;
    color: var(--sub-text);
    padding: 12px 16px 6px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    opacity: 0.7;
    display: flex;
    align-items: center;
    gap: 8px;
}

.asset-group-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.05);
}