/* Tree View Panel Styles */
#treeViewPanel {
    position: fixed;
    left: 10px;
    top: 120px;
    width: 350px;
    height: calc(100vh - 140px); /* Extend to cover whole page vertically */
    background-color: rgba(30, 30, 30, 0.95);
    border: 1px solid #555;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    font-family: Arial, sans-serif;
    font-size: 12px;
    color: #ffffff;
    overflow: hidden;
}

/* Tab Navigation */
.xeokit-tabs {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.xeokit-tab {
    display: none;
    flex-direction: column;
    height: 100%;
}

.xeokit-tab.active {
    display: flex;
}

.xeokit-tab-btn {
    display: inline-block;
    padding: 8px 12px;
    background-color: #444;
    color: #ccc;
    text-decoration: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.xeokit-tab-btn:hover {
    background-color: #555;
    color: #fff;
}

.xeokit-tab.active .xeokit-tab-btn {
    background-color: #2a5aa0;
    color: #fff;
    border-bottom-color: #4a7bc8;
}

/* Tab Content */
.xeokit-tab-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Button Group */
.xeokit-btn-group {
    padding: 8px;
    border-bottom: 1px solid #555;
    display: flex;
    gap: 5px;
}

.xeokit-btn {
    padding: 4px 8px;
    background-color: #555;
    color: #ccc;
    border: 1px solid #666;
    border-radius: 3px;
    cursor: pointer;
    font-size: 10px;
    text-transform: uppercase;
}

.xeokit-btn:hover {
    background-color: #666;
    color: #fff;
}

.xeokit-btn:disabled {
    background-color: #333;
    color: #666;
    cursor: not-allowed;
}

/* Override toolbar disabled styles for tree view buttons */
#treeViewPanel .xeokit-btn {
    opacity: 1 !important;
    color: #ccc !important;
    border-color: #666 !important;
    pointer-events: all !important;
    cursor: pointer !important;
    text-transform: none !important; /* Remove uppercase transformation */
}

#treeViewPanel .xeokit-btn:hover {
    background-color: #666 !important;
    color: #fff !important;
}

/* Tree Panel */
.xeokit-tree-panel {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    padding: 8px;
    min-width: 0; /* Allow shrinking below content width */
}

/* Tree Structure */
.xeokit-tree-panel ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.xeokit-tree-panel ul ul {
    padding-left: 20px;
}

.xeokit-tree-panel li {
    margin: 2px 0;
    position: relative;
    line-height: 20px;
}

.xeokit-tree-panel li .tree-node {
    display: flex;
    align-items: center;
    padding: 2px 4px;
    border-radius: 3px;
    cursor: pointer;
    user-select: none;
}

.xeokit-tree-panel li .tree-node:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.xeokit-tree-panel li .tree-node.selected {
    background-color: rgba(74, 123, 200, 0.3);
}

/* Expand/Collapse Icons */
.tree-expand-icon {
    width: 12px;
    height: 12px;
    margin-right: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: #ccc;
}

.tree-expand-icon:before {
    content: "▶";
}

.tree-expand-icon.expanded:before {
    content: "▼";
}

.tree-expand-icon.leaf {
    visibility: hidden;
}

/* Visibility Checkbox */
.tree-visibility-checkbox {
    width: 12px;
    height: 12px;
    margin-right: 6px;
    cursor: pointer;
    accent-color: #4a7bc8;
}

/* Node Label */
.tree-node-label {
    flex: 1;
    font-size: 11px;
    color: #ddd;
    overflow: visible; /* Allow text to overflow to show horizontal scrollbar */
    text-overflow: clip; /* Remove ellipsis */
    white-space: nowrap;
    min-width: max-content; /* Ensure full text width is available */
}

/* Node Count */
.tree-node-count {
    font-size: 9px;
    color: #999;
    margin-left: 4px;
}

/* Scrollbar Styling */
.xeokit-tree-panel::-webkit-scrollbar {
    width: 8px;
}

.xeokit-tree-panel::-webkit-scrollbar-track {
    background: #333;
}

.xeokit-tree-panel::-webkit-scrollbar-thumb {
    background: #666;
    border-radius: 4px;
}

.xeokit-tree-panel::-webkit-scrollbar-thumb:hover {
    background: #777;
}

/* Highlighted Node */
.tree-node.highlighted {
    background-color: rgba(255, 255, 0, 0.3);
    border: 1px solid #ffff00;
}

/* Context Menu Styles */
.xeokit-context-menu {
    position: fixed !important;
    background-color: #2a2a2a;
    border: 1px solid #555;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 99999 !important;
    min-width: 150px;
    font-size: 11px;
    color: #ddd;
    pointer-events: auto !important;
}

.xeokit-context-menu ul {
    list-style: none;
    margin: 0;
    padding: 2px 0; /* Reduced from 4px to 2px */
}

.xeokit-context-menu li {
    padding: 4px 12px; /* Reduced from 6px to 4px */
    cursor: pointer;
    /* Removed border-bottom to eliminate separators */
}

.xeokit-context-menu li:hover {
    background-color: #4a7bc8;
    color: #fff;
}

.xeokit-context-menu li.disabled {
    color: #666;
    cursor: not-allowed;
}

.xeokit-context-menu li.disabled:hover {
    background-color: transparent;
    color: #666;
}

/* Separator styling - make it thin and non-interactive */
.xeokit-context-menu li.separator {
    padding: 0 !important;
    margin: 0 !important;
    height: 1px !important;
    cursor: default !important;
    pointer-events: none !important;
    background-color: transparent !important;
}

.xeokit-context-menu li.separator:hover {
    background-color: transparent !important;
}

/* Submenu styling */
.xeokit-context-menu li.has-submenu {
    position: relative;
}

.xeokit-context-submenu {
    position: absolute;
    left: 100%;
    top: 0;
    background-color: #2a2a2a;
    border: 1px solid #555;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 10001;
    min-width: 120px;
    font-size: 11px;
    color: #ddd;
}

.xeokit-context-submenu ul {
    list-style: none;
    margin: 0;
    padding: 2px 0;
}

.xeokit-context-submenu li {
    padding: 4px 12px;
    cursor: pointer;
}

.xeokit-context-submenu li:hover {
    background-color: #4a7bc8;
    color: #fff;
}

.xeokit-context-submenu li.disabled {
    color: #666;
    cursor: not-allowed;
}

.xeokit-context-submenu li.disabled:hover {
    background-color: transparent;
    color: #666;
}

.submenu-arrow {
    float: right;
    font-size: 8px;
    margin-top: 2px;
}

/* Tab Navigation Bar */
.xeokit-tab-nav {
    display: flex;
    background-color: #333;
    border-bottom: 1px solid #555;
}

.xeokit-tab-nav .xeokit-tab-btn {
    flex: 1;
    text-align: center;
    border-right: 1px solid #555;
    padding: 8px 12px;
    background-color: #444;
    color: #ccc;
    text-decoration: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.xeokit-tab-nav .xeokit-tab-btn:last-child {
    border-right: none;
}

.xeokit-tab-nav .xeokit-tab-btn:hover {
    background-color: #555;
    color: #fff;
}

.xeokit-tab-nav .xeokit-tab-btn.active {
    background-color: #2a5aa0;
    color: #fff;
    border-bottom-color: #4a7bc8;
}