/* Custom TreeView Styling */
.custom-tree-view {
    font-size: 12px;
    padding: 2px 0;
}

.tree-node {
    margin: 0;
    padding: 0;
}

.tree-node-content {
    padding: 4px 8px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.tree-node-content:hover {
    background-color: #e8e8e8;
    border-left-color: #4c4c4c;
}

.tree-node-content.selected {
    background-color: #4c4c4c;
    color: white;
    border-left-color: #007bff;
}

.tree-node-content.selected:hover {
    background-color: #3a3a3a;
}

.modern-side-panel .lift-tree-container {
    margin-left: calc(var(--lift-item-left-offset) + (var(--lift-chevron-slot-width) / 2));
    margin-top: 2px;
    margin-bottom: 6px;
    padding-left: 12px;
    padding-bottom: 6px;
    border-left: 2px solid color-mix(in srgb, var(--sys-accent) 35%, transparent);
}

.modern-side-panel {
    --lift-item-left-offset: 16px;
    --lift-chevron-slot-width: 18px;
}

.modern-side-panel .lift-menu-item .mud-list-item-icon,
.modern-side-panel .lift-menu-item .mud-icon-root {
    color: var(--sys-accent) !important;
}

.modern-side-panel .company-menu-item.lift-menu-item .mud-list-item-icon,
.modern-side-panel .company-menu-item.lift-menu-item .mud-icon-root {
    color: var(--sys-accent) !important;
}

.modern-side-panel .lift-menu-item.active {
    background-color: color-mix(in srgb, var(--sys-accent) 16%, transparent);
    box-shadow: inset 3px 0 0 var(--sys-accent);
}

.modern-side-panel .lift-menu-item.active:hover {
    background-color: color-mix(in srgb, var(--sys-accent) 22%, transparent);
}

.modern-side-panel .lift-item-row {
    display: flex;
    align-items: center;
    width: 100%;
}

.modern-side-panel .lift-item-text {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.modern-side-panel .lift-leading-icon {
    margin-right: 6px;
}

.modern-side-panel .lift-chevron-slot {
    width: var(--lift-chevron-slot-width);
    min-width: var(--lift-chevron-slot-width);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-right: 4px;
}

.modern-side-panel .lift-expand-icon {
    transition: transform 0.2s ease;
    transform: rotate(0deg);
    color: #4f5f78;
}

.modern-side-panel .lift-expand-icon.expanded {
    transform: rotate(90deg);
}

/* Toggle icon */
.tree-toggle {
    font-size: 9px;
    margin-right: 4px;
    min-width: 10px;
    color: #666;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.tree-spacer {
    display: inline-block;
    min-width: 14px;
    flex-shrink: 0;
}

/* Node icons */
.tree-node-icon {
    margin-right: 6px;
    font-size: 11px;
    min-width: 12px;
    text-align: center;
    flex-shrink: 0;
}

.tree-node-icon.fa-book {
    color: #0d6efd;
}

.tree-node-icon.fa-newspaper {
    color: #fd7e14;
}

.tree-node-icon.fa-calendar-alt {
    color: #ffc107;
}

.tree-node-icon.revision-icon {
    color: #34d399;
    font-size: 16px;
}

.tree-node-content.selected .tree-node-icon {
    color: white !important;
}

.tree-node-content.selected .tree-toggle {
    color: white;
}

/* Text */
.tree-node-text {
    font-size: 11px;
    line-height: 1.2;
    flex: 1;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.modern-side-panel .tree-node-content:hover {
    background-color: color-mix(in srgb, var(--sys-accent) 12%, transparent);
    border-left-color: var(--sys-accent);
}

.modern-side-panel .tree-node-content.selected,
.modern-side-panel .tree-node-content.selected:hover {
    background-color: color-mix(in srgb, var(--sys-accent) 18%, transparent);
    color: var(--sys-ink);
    border-left-color: var(--sys-accent);
}

.modern-side-panel .tree-node-content.selected .tree-node-text {
    font-weight: 600;
}

.modern-side-panel .tree-node-content.selected .tree-node-icon,
.modern-side-panel .tree-node-content.selected .tree-toggle {
    color: inherit !important;
}

.modern-side-panel .tree-node-icon.fa-book,
.modern-side-panel .tree-node-icon.fa-newspaper,
.modern-side-panel .tree-node-icon.fa-calendar-alt {
    color: var(--sys-accent);
}

.modern-side-panel .tree-node-content {
    padding-top: 5px;
    padding-bottom: 5px;
}

.modern-side-panel .lift-tree-container > .tree-node > .tree-node-content {
    margin-left: -14px;
    padding-left: 22px;
}

.modern-side-panel .lift-tree-container .tree-node-children > .tree-node > .tree-node-content {
    margin-left: -4px;
    padding-left: 12px;
    border-left-width: 1px;
}

.modern-side-panel .lift-tree-container .tree-node-children > .tree-node > .tree-node-content:hover {
    border-left-width: 1px;
    margin-left: -5px;
    padding-left: 13px;
}

.modern-side-panel .lift-tree-container .tree-node-children > .tree-node > .tree-node-content.selected,
.modern-side-panel .lift-tree-container .tree-node-children > .tree-node > .tree-node-content.selected:hover {
    margin-left: -5px;
    padding-left: 13px;
    border-left-width: 1px;
}

.modern-side-panel .tree-node-text {
    font-size: 13px;
    line-height: 1.3;
}

.modern-side-panel .tree-node-icon {
    font-size: 12px;
}

.modern-side-panel .tree-node-icon.revision-icon {
    font-size: 16px;
}

/* Child nodes indentation */
.tree-node-children {
    margin-left: 15px;
    border-left: 1px solid #e0e0e0;
    padding-left: 4px;
}

.modern-side-panel .lift-tree-container .tree-node-children {
    border-left-color: color-mix(in srgb, var(--sys-accent) 35%, transparent);
}

/* Override accordion styling for better integration */
.accordion-section-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding-top 0.3s ease, padding-bottom 0.3s ease;
    display: block !important;
    padding: 0 15px !important;
}

.accordion-section-content.open {
    max-height: 2000px;
    padding: 15px !important;
}

.accordion-section-content .custom-tree-view {
    background-color: transparent;
    padding: 2px 0;
}