/**
 * Portfolio Filter Gallery - Admin Styles
 * Modern, clean admin UI
 * 
 * @package Portfolio_Filter_Gallery
 * @version 2.0.0
 */

/* ==========================================================================
   CSS Variables
   ========================================================================== */

:root {
    --pfg-primary: #3858e9;
    --pfg-primary-hover: #2945c9;
    --pfg-primary-light: rgba(56, 88, 233, 0.1);
    --pfg-success: #10b981;
    --pfg-warning: #f59e0b;
    --pfg-error: #ef4444;
    --pfg-text: #1e293b;
    --pfg-text-muted: #64748b;
    --pfg-text-light: #94a3b8;
    --pfg-bg: #f8fafc;
    --pfg-card-bg: #ffffff;
    --pfg-border: #e2e8f0;
    --pfg-border-light: #f1f5f9;
    --pfg-radius: 8px;
    --pfg-radius-lg: 12px;
    --pfg-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --pfg-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --pfg-transition: 0.2s ease;
}

/* ==========================================================================
   General Layout
   ========================================================================== */

.meta-box-sortables select {
    max-width: fit-content !important;
}

.pfg-admin-wrap {
    max-width: 1400px;
    margin: 20px auto;
    padding: 0 20px;
}

.pfg-admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--pfg-border);
}

.pfg-admin-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--pfg-text);
    margin: 0;
}

.pfg-admin-subtitle {
    color: var(--pfg-text-muted);
    font-size: 14px;
    margin-top: 5px;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.pfg-card {
    background: var(--pfg-card-bg);
    border-radius: var(--pfg-radius-lg);
    box-shadow: var(--pfg-shadow);
    padding: 24px;
    margin-bottom: 20px;
}

.pfg-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--pfg-border-light);
}

.pfg-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--pfg-text);
    margin: 0;
}

.pfg-card-description {
    color: var(--pfg-text-muted);
    font-size: 13px;
    margin-top: 4px;
}

/* ==========================================================================
   Tabs
   ========================================================================== */

.pfg-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--pfg-border);
    margin-bottom: 24px;
}

.pfg-tab {
    padding: 12px 20px;
    border: none;
    background: transparent;
    color: var(--pfg-text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all var(--pfg-transition);
}

.pfg-tab:hover {
    color: var(--pfg-text);
}

.pfg-tab.active,
.pfg-tab:focus {
    color: var(--pfg-primary);
    border-bottom-color: var(--pfg-primary);
    outline: none;
}

.pfg-tab-content {
    display: none;
}

.pfg-tab-content.active {
    display: block;
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

.pfg-form-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 20px;
    align-items: start;
    padding: 16px 0;
    border-bottom: 1px solid var(--pfg-border-light);
}

.pfg-form-row:last-child {
    border-bottom: none;
}

.pfg-form-label {
    font-weight: 500;
    color: var(--pfg-text);
    padding-top: 8px;
}

.pfg-form-label small {
    display: block;
    font-weight: 400;
    color: var(--pfg-text-muted);
    font-size: 12px;
    margin-top: 4px;
}

.pfg-input,
.pfg-select,
.pfg-textarea {
    width: 100%;
    max-width: 400px;
    padding: 10px 14px;
    border: 1px solid var(--pfg-border);
    border-radius: var(--pfg-radius);
    font-size: 14px;
    color: var(--pfg-text);
    background: var(--pfg-card-bg);
    transition: border-color var(--pfg-transition), box-shadow var(--pfg-transition);
}

.pfg-input:focus,
.pfg-select:focus,
.pfg-textarea:focus {
    outline: none;
    border-color: var(--pfg-primary);
    box-shadow: 0 0 0 3px var(--pfg-primary-light);
}

.pfg-textarea {
    min-height: 100px;
    resize: vertical;
}

.pfg-select {
    appearance: none;
    background-image: url('data:image/svg+xml;charset=utf-8,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"%3E%3Cpath fill="%2364748b" d="M5.23 7.21a.75.75 0 011.06.02L10 11.168l3.71-3.938a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z"/%3E%3C/svg%3E');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

/* Toggle switch */
.pfg-toggle {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.pfg-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.pfg-toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--pfg-border);
    border-radius: 26px;
    transition: background var(--pfg-transition);
}

.pfg-toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: transform var(--pfg-transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.pfg-toggle input:checked + .pfg-toggle-slider {
    background: var(--pfg-primary);
}

.pfg-toggle input:checked + .pfg-toggle-slider::before {
    transform: translateX(22px);
}

.pfg-toggle input:focus + .pfg-toggle-slider {
    box-shadow: 0 0 0 3px var(--pfg-primary-light);
}

/* Color picker */
.pfg-color-picker {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pfg-color-preview {
    width: 36px;
    height: 36px;
    border-radius: var(--pfg-radius);
    border: 1px solid var(--pfg-border);
    cursor: pointer;
}

/* Range slider */
.pfg-range {
    display: flex;
    align-items: center;
    gap: 15px;
}

.pfg-range input[type="range"] {
    flex: 1;
    max-width: 200px;
    height: 6px;
    border-radius: 3px;
    background: var(--pfg-border);
    appearance: none;
}

.pfg-range input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--pfg-primary);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.pfg-range-value {
    min-width: 40px;
    text-align: center;
    font-size: 14px;
    color: var(--pfg-text-muted);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.pfg-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: none;
    border-radius: var(--pfg-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--pfg-transition);
}

.pfg-btn-primary {
    background: var(--pfg-primary);
    color: white;
}

.pfg-btn-primary:hover {
    background: var(--pfg-primary-hover);
}

.pfg-btn-secondary {
    background: var(--pfg-bg);
    color: var(--pfg-text);
    border: 1px solid var(--pfg-border);
}

.pfg-btn-secondary:hover {
    background: var(--pfg-border-light);
}

.pfg-btn-success {
    background: var(--pfg-success);
    color: white;
}

.pfg-btn-danger {
    background: var(--pfg-error);
    color: white;
}

.pfg-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pfg-btn .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   Image Grid (Gallery Editor)
   ========================================================================== */

.pfg-image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.pfg-image-item {
    position: relative;
    background: var(--pfg-bg);
    border-radius: var(--pfg-radius);
    overflow: hidden;
    cursor: move;
    transition: transform var(--pfg-transition), box-shadow var(--pfg-transition);
}

.pfg-image-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--pfg-shadow-lg);
}

.pfg-image-item.ui-sortable-helper {
    box-shadow: var(--pfg-shadow-lg);
    transform: rotate(2deg);
}

.pfg-image-thumb {
    aspect-ratio: 1;
    width: 100%;
    object-fit: cover;
}

.pfg-image-actions {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity var(--pfg-transition);
}

.pfg-image-item:hover .pfg-image-actions {
    opacity: 1;
}

.pfg-image-action {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: var(--pfg-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--pfg-transition);
}

.pfg-image-action:hover {
    background: white;
}

.pfg-image-action.pfg-image-delete:hover {
    background: var(--pfg-error);
    color: white;
}

.pfg-image-info {
    padding: 12px;
}

.pfg-image-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--pfg-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0 0 4px;
}

.pfg-image-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.pfg-image-filter-tag {
    padding: 2px 8px;
    background: var(--pfg-primary-light);
    color: var(--pfg-primary);
    font-size: 11px;
    font-weight: 500;
    border-radius: 4px;
}

/* Upload area */
.pfg-upload-area {
    border: 2px dashed var(--pfg-border);
    border-radius: var(--pfg-radius-lg);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--pfg-transition), background var(--pfg-transition);
}

.pfg-upload-area:hover {
    border-color: var(--pfg-primary);
    background: var(--pfg-primary-light);
}

.pfg-upload-area.pfg-dragover {
    border-color: var(--pfg-primary);
    background: var(--pfg-primary-light);
    border-style: solid;
    box-shadow: 0 0 0 4px rgba(56, 88, 233, 0.2);
}

.pfg-upload-area.pfg-uploading {
    opacity: 0.7;
    pointer-events: none;
}

.pfg-upload-icon {
    font-size: 48px;
    color: var(--pfg-text-light);
    margin-bottom: 15px;
}

.pfg-upload-text {
    font-size: 16px;
    color: var(--pfg-text);
    margin-bottom: 5px;
}

.pfg-upload-hint {
    font-size: 13px;
    color: var(--pfg-text-muted);
}

/* Upload actions button container */
.pfg-upload-actions {
    display: flex;
    gap: 12px;
    margin: 20px 0;
    padding: 0 15px;
}

/* Empty state styling */
.pfg-no-images {
    text-align: center;
    padding: 40px 20px;
    color: var(--pfg-text-muted);
}

.pfg-no-images .dashicons {
    font-size: 48px;
    width: 48px;
    height: 48px;
    color: var(--pfg-border);
    display: block;
    margin: 0 auto 15px;
}

.pfg-no-images p {
    margin: 0;
    font-size: 14px;
    color: var(--pfg-text-muted);
}

/* ==========================================================================
   Shortcode Box
   ========================================================================== */

.pfg-shortcode-box {
    background: var(--pfg-bg);
    border-radius: var(--pfg-radius);
    padding: 15px;
}

.pfg-shortcode-wrapper {
    display: flex;
    gap: 10px;
    margin: 10px 0;
}

.pfg-shortcode-wrapper code {
    flex: 1;
    padding: 10px 14px;
    background: white;
    border: 1px solid var(--pfg-border);
    border-radius: var(--pfg-radius);
    font-size: 13px;
    color: var(--pfg-primary);
}

.pfg-copy-shortcode {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.pfg-shortcode-note {
    font-size: 12px;
    color: var(--pfg-text-muted);
    margin: 10px 0 0;
}

.pfg-shortcode-note code {
    background: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
}

/* ==========================================================================
   Filters Page
   ========================================================================== */

.pfg-filters-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pfg-filter-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--pfg-card-bg);
    border: 1px solid var(--pfg-border);
    border-radius: var(--pfg-radius);
    margin-bottom: 10px;
    cursor: move;
}

.pfg-filter-item:hover {
    border-color: var(--pfg-primary);
}

.pfg-filter-drag {
    color: var(--pfg-text-light);
    cursor: move;
}

.pfg-filter-name-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--pfg-border);
    border-radius: var(--pfg-radius);
    font-size: 14px;
}

.pfg-filter-slug {
    color: var(--pfg-text-muted);
    font-size: 12px;
    min-width: 120px;
}

.pfg-filter-delete {
    color: var(--pfg-text-light);
    cursor: pointer;
    transition: color var(--pfg-transition);
}

.pfg-filter-delete:hover {
    color: var(--pfg-error);
}

/* ==========================================================================
   Notices
   ========================================================================== */

.pfg-notice {
    padding: 15px 20px;
    border-radius: var(--pfg-radius);
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.pfg-notice-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

.pfg-notice-success {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.pfg-notice-warning {
    background: #fffbeb;
    border: 1px solid #fcd34d;
    color: #92400e;
}

.pfg-notice-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.pfg-notice-icon {
    flex-shrink: 0;
}

.pfg-notice-content {
    flex: 1;
}

.pfg-notice-title {
    font-weight: 600;
    margin-bottom: 4px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 782px) {
    .pfg-admin-wrap {
        padding: 0 10px;
    }

    .pfg-form-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .pfg-form-label {
        padding-top: 0;
    }

    .pfg-image-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .pfg-tabs {
        overflow-x: auto;
    }

    .pfg-tab {
        white-space: nowrap;
    }
}

/* ==========================================================================
   Pro Badge & Locked Settings (Freemium)
   ========================================================================== */

/* Pro badge */
.pfg-pro-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 4px;
    letter-spacing: 0.5px;
    vertical-align: middle;
    margin-left: 8px;
}

.pfg-pro-badge-link {
    text-decoration: none;
}

.pfg-pro-badge-link:hover .pfg-pro-badge {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

/* Locked setting row */
.pfg-setting-locked {
    position: relative;
}

.pfg-setting-locked th {
    color: var(--pfg-text-muted);
}

/* Locked input wrapper */
.pfg-locked-input {
    position: relative;
}

.pfg-input-disabled input,
.pfg-input-disabled select,
.pfg-input-disabled textarea,
.pfg-input-disabled .pfg-toggle-slider {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

/* Locked overlay */
.pfg-locked-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--pfg-radius);
    z-index: 10;
    opacity: 0;
    transition: opacity var(--pfg-transition);
}

.pfg-locked-input:hover .pfg-locked-overlay {
    opacity: 1;
}

.pfg-locked-content {
    text-align: center;
    padding: 15px;
}

.pfg-locked-content .dashicons {
    font-size: 24px;
    width: 24px;
    height: 24px;
    color: var(--pfg-text-muted);
    margin-bottom: 8px;
}

.pfg-locked-content p {
    margin: 0 0 10px;
    font-size: 13px;
    color: var(--pfg-text);
}

.pfg-upgrade-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border: none !important;
    color: #fff !important;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--pfg-radius);
    font-size: 12px;
}

.pfg-upgrade-btn:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%) !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Premium feature section */
.pfg-premium-section {
    position: relative;
    border: 2px dashed var(--pfg-border);
    border-radius: var(--pfg-radius-lg);
    padding: 20px;
    margin: 20px 0;
}

.pfg-premium-section::before {
    content: 'PREMIUM';
    position: absolute;
    top: -10px;
    left: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 2px 10px;
    font-size: 10px;
    font-weight: 700;
    border-radius: 4px;
}

.pfg-premium-section.pfg-locked {
    opacity: 0.7;
}

.pfg-premium-section.pfg-locked::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--pfg-radius-lg);
    pointer-events: none;
}

/* Upsell banner */
.pfg-upsell-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 20px;
    border-radius: var(--pfg-radius-lg);
    margin: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.pfg-upsell-content h3 {
    margin: 0 0 5px;
    font-size: 18px;
    font-weight: 600;
}

.pfg-upsell-content p {
    margin: 0;
    opacity: 0.9;
    font-size: 14px;
}

.pfg-upsell-btn {
    background: #fff;
    color: #667eea;
    padding: 12px 24px;
    border-radius: var(--pfg-radius);
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--pfg-transition);
}

.pfg-upsell-btn:hover {
    background: #f8fafc;
    color: #764ba2;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Tab with Pro badge */
.pfg-tab .pfg-pro-badge {
    margin-left: 6px;
    padding: 1px 5px;
    font-size: 8px;
}

/* ==========================================================================
   Filter Checkbox Hierarchy Styles (Edit Image Modal)
   ========================================================================== */

.pfg-filter-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    max-height: 250px;
    overflow-y: auto;
}

.pfg-checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    color: #475569;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.pfg-checkbox-label:hover {
    border-color: var(--pfg-primary);
    background: var(--pfg-primary-light);
}

.pfg-checkbox-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin: 0;
    cursor: pointer;
}

.pfg-checkbox-label input[type="checkbox"]:checked + .pfg-filter-dot {
    box-shadow: 0 0 0 2px rgba(56, 88, 233, 0.3);
}

.pfg-filter-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.pfg-tree-connector {
    color: #94a3b8;
    font-size: 12px;
    margin-right: 2px;
}

.pfg-filter-name {
    color: inherit;
}

/* Children group container */
.pfg-filter-children-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 0;
    margin-top: 4px;
}

/* =====================================
   Tree-style Filter Checkboxes
   ===================================== */

/* Container for tree items */
.pfg-tree-filter-item {
    display: block;
}

/* Each filter row */
.pfg-tree-filter-row {
    display: flex;
    align-items: center;
    padding: 2px 0;
}

/* Checkbox label - wraps all content */
.pfg-tree-checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.15s ease;
    font-size: 13px;
    color: #475569;
}

.pfg-tree-checkbox-label:hover {
    background: #f1f5f9;
}

.pfg-tree-checkbox-label:has(input:checked) {
    background: var(--pfg-primary-light, #eef2ff);
    color: var(--pfg-primary, #3858e9);
}

/* Custom checkbox styling */
.pfg-tree-checkbox-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--pfg-primary, #3858e9);
}

/* Toggle button (+/-) for parents */
.pfg-tree-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 14px;
    font-weight: bold;
    color: #64748b;
    background: #e2e8f0;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.pfg-tree-toggle:hover {
    background: var(--pfg-primary-light, #eef2ff);
    color: var(--pfg-primary, #3858e9);
}

/* Spacer when no toggle - hide it completely */
.pfg-tree-toggle-spacer {
    display: none;
}

/* Toggle icons using ::before - direct child only to avoid affecting nested */
.pfg-filter-collapsible-group[data-expanded="false"] > .pfg-tree-filter-row .pfg-tree-toggle::before,
.pfg-filter-collapsible-group[data-expanded="false"] > div > .pfg-tree-filter-row .pfg-tree-toggle::before {
    content: "+";
}

.pfg-filter-collapsible-group[data-expanded="true"] > .pfg-tree-filter-row .pfg-tree-toggle::before,
.pfg-filter-collapsible-group[data-expanded="true"] > div > .pfg-tree-filter-row .pfg-tree-toggle::before {
    content: "−";
}

/* Default state for toggle */
.pfg-tree-toggle::before {
    content: "−";
    font-size: 14px;
}

.pfg-tree-toggle {
    font-size: 0; /* Hide any text content */
}

/* Hide children when collapsed */
.pfg-filter-collapsible-group[data-expanded="false"] .pfg-collapsible-content {
    display: none;
}

/* Tree connector */
.pfg-tree-connector {
    color: #94a3b8;
    font-size: 12px;
    margin-right: 2px;
    flex-shrink: 0;
}

/* Color dot */
.pfg-tree-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Filter name */
.pfg-tree-filter-name {
    color: inherit;
}

/* Children container */
.pfg-tree-children {
    display: block;
}

/* Collapsible content transition */
.pfg-collapsible-content {
    overflow: hidden;
    transition: all 0.2s ease-out;
}

/* Legacy compatibility - keep old classes working */
.pfg-filter-collapsible-group {
    display: block;
}

.pfg-collapse-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 8px;
    color: #94a3b8;
    background: #f1f5f9;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-right: 4px;
}

.pfg-collapse-toggle:hover {
    background: var(--pfg-primary-light, #eef2ff);
    color: var(--pfg-primary, #3858e9);
}

/* Collapsed state - rotate arrow */
.pfg-filter-collapsible-group[data-expanded="false"] .pfg-collapse-toggle {
    transform: rotate(-90deg);
}

/* Parent filter styling */
.pfg-checkbox-label.pfg-parent-filter {
    font-weight: 500;
}

/* Child filter styling */
.pfg-checkbox-label.pfg-child-filter {
    font-size: 12px;
    padding: 5px 10px;
}

/* Checked state */
.pfg-checkbox-label:has(input:checked) {
    background: var(--pfg-primary-light);
    border-color: var(--pfg-primary);
    color: var(--pfg-primary);
}

/* Editable slug field styling */
.pfg-col-slug input.pfg-editable-slug {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 12px;
    font-family: 'Monaco', 'Consolas', monospace;
    color: var(--pfg-primary);
    background: transparent;
    transition: all 0.2s ease;
}

.pfg-col-slug input.pfg-editable-slug:hover {
    background: #f1f5f9;
}

.pfg-col-slug input.pfg-editable-slug:focus {
    background: white;
    border-color: var(--pfg-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(56, 88, 233, 0.1);
}

/* Duplicate slug warning */
.pfg-col-slug input.pfg-editable-slug.pfg-slug-warning {
    border-color: #f59e0b;
    background: #fffbeb;
}

.pfg-col-slug input.pfg-editable-slug.pfg-slug-duplicate {
    border-color: #ef4444;
    background: #fef2f2;
}

/* ==========================================================================
   Disabled Form Rows (Layout-dependent settings)
   ========================================================================== */

.pfg-form-row.pfg-row-disabled {
    opacity: 0.5;
    pointer-events: none;
    position: relative;
}

.pfg-form-row.pfg-row-disabled::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    cursor: not-allowed;
}

.pfg-form-row.pfg-row-disabled select,
.pfg-form-row.pfg-row-disabled input {
    cursor: not-allowed;
    background-color: #f1f5f9;
}