:root {
    --sidebar-width: 260px;
    --navbar-height: 56px;
    
    /* Premium Dark Theme(Default) */
    --bg-color: #0f172a;
    --sidebar-bg: #1e293b;
    --card-bg: #1e293b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-soft: rgba(59, 130, 246, 0.15);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-color: #eef1f6;
    --sidebar-bg: #e2e6ed;
    --card-bg: #ffffff;
    --accent: #2563eb;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #d5dbe5;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow: 0 2px 8px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: white;
    padding: 8px 16px;
    z-index: 2000;
    transition: top 0.2s;
    text-decoration: none;
    font-weight: 600;
}
.skip-link:focus {
    top: 0;
}

/* Top Navbar */
.top-navbar {
    height: var(--navbar-height);
    background: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.top-navbar .brand {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-main);
    text-decoration: none;
    margin-right: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.top-navbar .brand i {
    color: var(--accent);
    font-size: 1.5rem;
}
.top-navbar .shortcuts {
    display: flex;
    gap: 1.25rem;
    flex-grow: 1;
}
.kbd-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    transition: var(--transition);
}
.kbd-hint:hover {
    background: var(--accent-soft);
    color: var(--accent);
}

/* Main Layout */
.main-container {
    display: flex;
    margin-top: var(--navbar-height);
    min-height: calc(100vh - var(--navbar-height));
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 1.25rem 0;
    position: fixed;
    height: calc(100vh - var(--navbar-height));
    overflow-y: auto;
    z-index: 900;
}
.sidebar-nav {
    display: flex;
    flex-direction: column;
    padding: 0 0.75rem;
}
.sidebar-item {
    padding: 0.625rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.875rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    margin-bottom: 0.25rem;
    transition: var(--transition);
}
.sidebar-item:hover {
    background: var(--accent-soft);
    color: var(--accent);
}
.sidebar-item.active {
    background: var(--accent);
    color: white;
}
.sidebar-item.active i {
    color: white;
}
.sidebar-section-title {
    padding: 1.5rem 1rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05rem;
    opacity: 0.8;
}

/* Content Area */
.content-area {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 2rem;
    max-width: calc(100vw - var(--sidebar-width));
}

/* Breadcrumbs */
.breadcrumb-nav {
    margin-bottom: 2rem;
}
.breadcrumb {
    background: transparent;
    padding: 0;
    font-size: 0.9rem;
}
.breadcrumb-item a {
    color: var(--accent);
    text-decoration: none;
}
.breadcrumb-item.active {
    color: var(--text-muted);
}

/* Card Styling */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

/* Keyboard Toast */
.shortcut-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #1e293b;
    border: 1px solid var(--border-color);
    color: white;
    padding: 1.25rem;
    border-radius: 12px;
    z-index: 2000;
    display: none;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}
kbd {
    background: #334155;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.8em;
    border-bottom: 2px solid #0f172a;
}

/* Utility */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Tree View Styling */
.tree-view {
    font-size: 0.95rem;
    color: var(--text-main);
}
.tree-item {
    padding: 0.45rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.125rem;
}
.tree-item:hover {
    background: var(--accent-soft);
}
.tree-item.folder {
    font-weight: 600;
}
.tree-item.file {
    font-weight: 400;
}
.tree-item.deleted {
    opacity: 0.8;
    color: #ef4444;
    text-decoration: line-through;
}
.tree-item.deleted:hover {
    background: rgba(239, 68, 68, 0.1);
}
.tree-item.trash {
    opacity: 0.9;
    color: #f59e0b;
}
.tree-item.trash:hover {
    background: rgba(245, 158, 11, 0.1);
}
.tree-item.access-revoked {
    opacity: 0.7;
    color: #ef4444;
}
.tree-item.removed-from-shared {
    opacity: 0.8;
    color: #f59e0b;
}
.tree-item.selected {
    background: var(--accent-soft);
    box-shadow: inset 3px 0 0 var(--accent);
}
.tree-item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.tree-children {
    margin-left: 1.75rem;
    border-left: 1px solid var(--border-color);
    padding-left: 0.25rem;
    display: none;
}
.tree-toggle {
    cursor: pointer;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: transform 0.2s ease;
    color: var(--text-muted);
}
.tree-toggle:hover {
    color: var(--accent);
}
.tree-icon {
    font-size: 1.1rem;
}
.tree-search-highlight {
    background-color: var(--accent);
    color: white;
    font-weight: 700;
    padding: 0 4px;
    border-radius: 4px;
}

/* File Details Styling */
.detail-section {
    border-top: 2px solid var(--border-color);
    padding-top: 0.75rem;
}
.detail-section-header {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04rem;
    color: var(--text-muted);
}
.detail-row {
    display: flex;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}
.detail-label {
    width: 140px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.025rem;
}
.detail-value {
    flex: 1;
    color: var(--text-main);
    word-break: break-all;
}
.detail-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
}
.detail-badge.success { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.detail-badge.danger { background: rgba(239, 68, 68, 0.1); color: #ef4444; }
.detail-badge.warning { background: rgba(245, 158, 11, 0.1); color: #f59e0b; }
.detail-badge.info { background: var(--accent-soft); color: var(--accent); }

/* Search Results Styles */
.search-stats {
    padding: 1rem 1.25rem;
    background: var(--accent-soft);
    border-radius: 8px;
    margin-bottom: 2rem;
    color: var(--accent);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.search-result-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.search-result-item:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.file-type-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 1.25rem;
    border: 1px solid var(--border-color);
}

.search-result-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

.search-result-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.search-result-meta i {
    opacity: 0.7;
}

.search-result-path {
    font-family: 'Inter', monospace;
    font-size: 0.8rem;
    background: var(--bg-color);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    word-break: break-all;
}

.search-result-highlight {
    background: var(--accent);
    color: white;
    padding: 0 2px;
    border-radius: 2px;
}

/* Comparison Table Styles */
.comparison-container {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.table {
    margin-bottom: 0;
    color: var(--text-main);
}

.table thead th {
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05rem;
    padding: 1rem 1.5rem;
}

.table tbody td {
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    vertical-align: middle;
}

.table tr:last-child td {
    border-bottom: none;
}

.diff-badge {
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.85rem;
}

.diff-added { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.diff-deleted { background: rgba(239, 68, 68, 0.15); color: #ef4444; }

/* Utilities & Buttons */
.text-accent { color: var(--accent) !important; }
.bg-accent-soft { background: var(--accent-soft) !important; }

.btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}
.btn-accent:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: white;
}

.btn-outline-accent {
    background: transparent;
    border-color: var(--accent);
    color: var(--accent);
}
.btn-outline-accent:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

/* Drive List Specifics */
.drives-table {
    margin-bottom: 0;
}

.drive-row {
    cursor: pointer;
    transition: var(--transition);
}

.drive-row-main {
    font-weight: 500;
    background-color: var(--bg-subtle);
}

.drive-row-shared {
    background-color: transparent;
    font-size: 0.95rem;
}

.drive-row:hover {
    background: var(--accent-soft) !important;
}

.drive-row:hover .text-muted, 
.drive-row:hover .email-text {
    color: var(--text-main) !important;
    opacity: 0.9;
}

.drive-owner {
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

.email-text {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.star-toggle {
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.star-toggle:hover, .star-toggle.starred {
    color: var(--accent);
    transform: scale(1.1);
}

/* Dark Mode Modal Styling */
.modal-content {
    background-color: var(--card-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.modal-header {
    background-color: rgba(59, 130, 246, 0.08);
    border-bottom-color: var(--border-color);
    color: var(--text-main);
}

.modal-body {
    color: var(--text-main);
    background-color: var(--card-bg);
}

.modal-footer {
    border-top-color: var(--border-color);
    background-color: var(--card-bg);
}

/* File Details Accordion Styling - Works in both modes */
.file-details-accordion-item {
    background-color: var(--card-bg);
    border-color: var(--border-color) !important;
}

.file-details-accordion-button {
    background-color: rgba(59, 130, 246, 0.08);
    color: var(--text-main);
}

.file-details-accordion-button:not(.collapsed) {
    background-color: rgba(59, 130, 246, 0.15);
    color: var(--text-main);
}

.file-details-accordion-button:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
}

.file-details-table {
    color: var(--text-main);
    background-color: var(--card-bg);
}

.file-details-table thead {
    background-color: rgba(59, 130, 246, 0.08);
    border-color: var(--border-color);
}

.file-details-table tbody tr:hover {
    background-color: rgba(59, 130, 246, 0.05);
}

.file-details-table td, .file-details-table th {
    border-color: var(--border-color);
}

/* File Details Search Input */
.file-details-input-group {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-main);
}

.file-details-search-input {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-main);
}

.file-details-search-input::placeholder {
    color: rgba(229, 231, 235, 0.7);
}

@media (prefers-color-scheme: light) {
    .file-details-search-input::placeholder {
        color: rgba(107, 114, 128, 0.7);
    }
    
    /* Make info text black in light mode */
    .modal-body .text-secondary {
        color: #000000 !important;
    }
}

/* Light Mode Modal Enhancement */
@media (prefers-color-scheme: light) {
    .modal-content {
        border: 2px solid #e5e7eb;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    }
    
    .modal-body {
        background-color: #f9fafb;
    }
    
    .modal-header {
        background-color: #f3f4f6;
        border-bottom: 1px solid #e5e7eb;
    }
    
    .modal-footer {
        background-color: #f9fafb;
        border-top: 1px solid #e5e7eb;
    }
    
    /* Force text to be black in light mode */
    .modal-body .text-secondary {
        color: #000000 !important;
    }
}

.modal-body .tree-view {
    color: var(--text-main);
}

.modal-body .tree-item {
    color: var(--text-main);
}

.modal-body .tree-item-name {
    color: var(--text-main);
}


#compareDrivePicker {
    display: flex;
    flex-direction: column;
}

#compareDrivePicker input.form-control {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-main);
    transition: var(--transition);
    margin-bottom: 0.75rem;
}

#compareDrivePicker input.form-control:focus {
    background-color: var(--card-bg);
    border-color: var(--accent);
    color: var(--text-main);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

#compareDrivePicker input.form-control::placeholder {
    color: var(--text-muted);
}

#compareDrivesContainer {
    min-height: 40px;
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.5rem;
    align-items: center;
}

.cmp-drive-btn {
    white-space: nowrap;
    font-size: 0.875rem;
    transition: var(--transition);
    background-color: transparent;
}

.cmp-drive-btn.btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-muted);
}

.cmp-drive-btn.btn-outline-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background-color: var(--accent-soft);
}

.cmp-drive-btn.btn-primary {
    background-color: var(--accent);
    border-color: var(--accent);
    color: white;
}

.cmp-drive-btn.btn-primary:hover,
.cmp-drive-btn.btn-primary:focus {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.cmp-drive-btn.active {
    font-weight: 600;
}

/* Drive search info text */
#compareDrivesContainer .text-muted {
    padding: 0.5rem;
    font-size: 0.875rem;
}