/* Windows File System Hierarchy Sidebar */

/* File System Container - !important needed to override Bootstrap navbar styles */
.file-system-sidebar,
.file-system-sidebar.navbar,
.file-system-sidebar.navbar-vertical,
#sidenav-main.file-system-sidebar {
    background: #ffffff !important;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    border: none !important;
    border-right: 1px solid #e9ecef !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 22rem !important;
    min-width: 22rem !important;
    max-width: 22rem !important;
    height: 100vh !important;
    z-index: 1030 !important;
    overflow: hidden !important;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: block !important;
    transform: translateX(0);
}

.file-system-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.05), transparent);
}

/* File System Header */
.file-system-header {
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    position: relative;
    padding: 1rem;
}

.file-system-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.1), transparent);
}

.navbar-brand {
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-logo .navbar-brand-img {
    height: 100%;
    width: 100%;
}

.navbar-brand-img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: transform 0.3s ease;
}

.navbar-brand:hover .navbar-brand-img {
    transform: scale(1.05);
}

/* File System Tree */
.file-system-tree {
    padding: 0.5rem 0;
    list-style: none;
    margin: 0;
    height: calc(100vh - 180px);
    max-height: calc(100vh - 180px);
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: #dee2e6 #f8f9fa;
    position: relative;
}

/* Tree Item */
.tree-item {
    margin: 0;
    position: relative;
}

/* Folder/File Container */
.tree-node {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    margin: 0 0.75rem;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    min-height: 48px;
    color: #495057;
    font-weight: 500;
    letter-spacing: 0.025em;
    box-sizing: border-box;
    border-left: 4px solid transparent;
}

.tree-node:hover {
    color: #7159EA !important;
    background: rgba(113, 89, 234, 0.05);
}

.tree-node.active {
    color: #7159EA !important;
    background: rgba(113, 89, 234, 0.05) !important;
    border-left-color: #7159EA !important;
}

/* Expand/Collapse Chevron */
.tree-chevron {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
    font-size: 0.75rem;
    color: #6c757d;
    transition: transform 0.3s ease;
    position: relative;
}

/* Chevron icons - !important needed to override Font Awesome defaults */
.tree-chevron::before {
    content: '▶' !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    color: #6c757d;
}

.tree-node:hover .tree-chevron {
    color: #7159EA;
}

.tree-chevron.expanded {
    transform: rotate(90deg);
}

.tree-chevron.collapsed {
    transform: rotate(0deg);
}

/* Folder/File Icon */
.tree-icon {
    width: 20px;
    height: 20px;
    margin-right: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: #495057;
    transition: all 0.3s ease;
}

.tree-icon.fas {
    font-size: 0.875rem;
    color: #495057;
}

.tree-node:hover .tree-icon,
.tree-node:hover .tree-icon.fas {
    color: #7159EA;
}

.tree-node.active .tree-icon,
.tree-node.active .tree-icon.fas {
    color: #7159EA !important;
}

/* Tree Label */
.tree-label {
    flex: 1;
    font-size: 0.875rem;
    font-weight: 500;
    color: #495057;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: all 0.3s ease;
}

.tree-node:hover .tree-label {
    color: #7159EA;
}

.tree-node.active .tree-label {
    color: #7159EA !important;
    font-weight: 500;
}

/* Child Items Container */
.tree-children {
    margin-left: 60px;
    border-left: 1px solid #e0e0e0;
    position: relative;
    padding-left: 16px;
    padding-right: 0;
    padding-top: 0;
    padding-bottom: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.tree-children.collapsed {
    display: none;
}

.tree-children.expanded {
    display: block;
}

/* Child Tree Node */
.tree-children .tree-node {
    margin-left: 0;
    padding-left: 0;
}

/* Indentation Levels */
.tree-level-1 { margin-left: 20px; }
.tree-level-2 { margin-left: 40px; }
.tree-level-3 { margin-left: 60px; }

/* Folder States - !important for chevron content to override Font Awesome */
.folder-closed .tree-chevron::before {
    content: '▶' !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    color: #6c757d;
}

.folder-open .tree-chevron::before {
    content: '▼' !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    color: #6c757d;
}

/* Folder Toggle Styling */
.tree-node.folder-toggle {
    background: transparent;
    border-left: 4px solid transparent;
    font-weight: 600;
}

.tree-node.folder-toggle:hover {
    background: rgba(113, 89, 234, 0.05);
    color: #7159EA !important;
}

.tree-node.folder-toggle.folder-open {
    background: rgba(113, 89, 234, 0.02);
    color: #495057;
}

.tree-node.folder-toggle.folder-closed {
    background: transparent;
    color: #495057;
}

/* Folder Icon Styling */
.tree-node.folder-toggle .tree-icon {
    color: #495057;
    font-weight: normal;
}

.tree-node.folder-toggle:hover .tree-icon {
    color: #7159EA;
}

.tree-node.folder-toggle.folder-open .tree-icon,
.tree-node.folder-toggle.folder-closed .tree-icon {
    color: #495057;
}

/* Child Item Icon Styling */
.tree-children .tree-node .tree-icon {
    color: #495057;
}

.tree-children .tree-node:hover .tree-icon {
    color: #7159EA;
}

.tree-children .tree-node.active .tree-icon {
    color: #7159EA !important;
}

/* Focus States for Accessibility */
.tree-node:focus {
    outline: 2px solid #7159EA;
    outline-offset: 2px;
}

.tree-node:focus-visible {
    outline: 2px solid #7159EA;
    outline-offset: 2px;
    background-color: rgba(113, 89, 234, 0.1);
}

.tree-node:focus-visible .tree-label {
    color: #7159EA;
}

/* Scrollbar Styling */
.file-system-sidebar::-webkit-scrollbar,
.file-system-tree::-webkit-scrollbar {
    width: 6px;
}

.file-system-sidebar::-webkit-scrollbar-track,
.file-system-tree::-webkit-scrollbar-track {
    background: #f8f9fa;
    border-radius: 3px;
}

.file-system-sidebar::-webkit-scrollbar-thumb,
.file-system-tree::-webkit-scrollbar-thumb {
    background: #dee2e6;
    border-radius: 3px;
    transition: background 0.3s ease;
}

.file-system-sidebar::-webkit-scrollbar-thumb:hover,
.file-system-tree::-webkit-scrollbar-thumb:hover {
    background: #adb5bd;
}

/* Enhanced scrolling behavior for expanded folders */
.file-system-tree {
    scroll-behavior: smooth;
}

/* Ensure scrollable area when folders are expanded */
.file-system-tree.has-expanded-folders {
    overflow-y: auto;
    overflow-x: hidden;
}

/* Visual indicator when content is scrollable */
.file-system-tree::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(transparent, rgba(248, 249, 250, 0.8));
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.file-system-tree.scrollable::after {
    opacity: 1;
}

/* Responsive Design - !important needed for responsive behavior overrides */
@media (max-width: 1199.98px) {
    .file-system-sidebar {
        transform: translateX(-100%) !important;
        display: none !important;
    }
    
    .g-sidenav-show .file-system-sidebar {
        transform: translateX(0) !important;
        display: block !important;
    }
    
    .tree-node {
        padding: 0.5rem 0.75rem;
        min-height: 36px;
    }
    
    .tree-label {
        font-size: 14px;
    }
    
    .tree-icon {
        width: 18px;
        height: 18px;
        font-size: 16px;
    }
    
    .tree-chevron {
        width: 18px;
        height: 18px;
        font-size: 14px;
    }
}

@media (min-width: 1200px) {
    .file-system-sidebar {
        transform: translateX(0) !important;
        display: block !important;
    }
}
.no-wrap {
    flex-wrap: nowrap !important;
}

/* Force visibility when g-sidenav-show class is present - !important for toggle functionality */
.g-sidenav-show .file-system-sidebar {
    display: block !important;
    transform: translateX(0) !important;
}

/* Force sidebar width override - !important to override Bootstrap */
aside.file-system-sidebar,
aside#sidenav-main.file-system-sidebar,
.file-system-sidebar.navbar.navbar-vertical {
    width: 22rem !important;
    min-width: 22rem !important;
    max-width: 22rem !important;
}

/* Adjust main content margin for sidebar - !important for layout */
.g-sidenav-show .main-content {
    margin-left: 22rem !important;
}

@media (max-width: 1199.98px) {
    .g-sidenav-show .main-content {
        margin-left: 0 !important;
    }
}

/* Override Bootstrap navbar styles - !important needed */
.file-system-sidebar.navbar {
    position: fixed !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
}

.file-system-sidebar.navbar-vertical {
    display: block !important;
    visibility: visible !important;
}

@media (max-width: 767.98px) {
    .file-system-sidebar {
        width: 280px;
    }
    
    .tree-node {
        padding: 0.625rem 0.75rem;
        min-height: 40px;
    }
    
    .tree-label {
        font-size: 15px;
    }
    
    .tree-children {
        max-height: 0;
        overflow: hidden;
    }
    
    .tree-children.expanded {
        max-height: none;
    }
}

/* Loading State */
.tree-node.loading {
    pointer-events: none;
    opacity: 0.7;
}

.tree-node.loading::after {
    content: '';
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    border: 2px solid rgba(113, 89, 234, 0.3);
    border-top: 2px solid #7159EA;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translateY(-50%) rotate(0deg); }
    100% { transform: translateY(-50%) rotate(360deg); }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .file-system-sidebar {
        background: #ffffff;
        border-right: 2px solid #000000;
    }
    
    .tree-label {
        color: #000000;
    }
    
    .tree-node:hover,
    .tree-node.active {
        background: #f0f0f0;
        border-color: #000000;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .tree-node,
    .tree-chevron,
    .tree-children {
        transition: none;
    }
    
    .tree-node.loading::after {
        animation: none;
    }
}

/* Screen Reader Only Content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Print Styles */
@media print {
    .file-system-sidebar {
        display: none;
    }
}

/* Remove unwanted pseudo-elements - !important needed to prevent conflicts */
.file-system-sidebar *::before,
.file-system-sidebar *::after {
    display: none !important;
    content: none !important;
    visibility: hidden !important;
}

/* CRITICAL EXCEPTION: Child node connector lines - !important to ensure they display */
.file-system-sidebar .tree-children .tree-node::before {
    display: block !important;
    content: '' !important;
    visibility: visible !important;
    opacity: 1 !important;
    position: absolute !important;
    left: -20px !important;
    top: 50% !important;
    width: 20px !important;
    height: 1px !important;
    background-color: #e0e0e0 !important;
    transform: translateY(-50%) !important;
    z-index: 1 !important;
}

/* Active state connector line */
.file-system-sidebar .tree-children .tree-node.active::before {
    background-color: #7159EA !important;
    height: 2px !important;
}

/* Remove list styling - !important to override browser defaults */
.file-system-sidebar ul,
.file-system-sidebar li,
.file-system-sidebar ol {
    list-style: none !important;
    list-style-type: none !important;
}

/* ARIA elements styling */
.file-system-sidebar [role="treeitem"],
.file-system-sidebar [aria-level],
.file-system-sidebar li[role="treeitem"],
.file-system-sidebar li[aria-level] {
    margin: 0;
    padding: 0;
    list-style: none;
}