/**
 * ============================================================================
 * ASSET GRID COMPONENT - Enhanced
 * ============================================================================
 * 
 * Styles for the enhanced asset grid with improved interaction,
 * accessibility, and visual design.
 */

/* === ASSET GRID CONTAINER === */
.asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--asset-card-width), 1fr));
    gap: var(--asset-grid-gap);
    padding: var(--spacing-lg);
    margin: 0;
    list-style: none;
}

/* === ASSET CARD === */
.asset-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    height: var(--asset-card-height);
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.asset-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.asset-card:focus {
    outline: none;
    box-shadow: var(--focus-ring), var(--shadow-lg);
    border-color: var(--primary-color);
}

.asset-card:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* === ASSET PREVIEW CONTAINER === */
.asset-preview-container {
    position: relative;
    height: 160px;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.asset-preview {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.asset-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.asset-card:hover .asset-thumbnail {
    transform: scale(1.05);
}

/* Video hover play functionality */
.asset-preview video.asset-thumbnail {
    object-fit: cover;
}

/* === ASSET OVERLAY === */
.asset-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
    gap: var(--spacing-sm);
}

.asset-card:hover .asset-overlay {
    opacity: 1;
}

.asset-overlay .btn {
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-fast);
}

.asset-overlay .btn:hover {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
}

/* === DURATION AND SIZE BADGES === */
.duration-badge,
.size-badge {
    position: absolute;
    background: rgba(0, 0, 0, 0.7);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    backdrop-filter: blur(4px);
}

.duration-badge {
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
}

.size-badge {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
}

/* === ASSET INFO === */
.asset-info {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.asset-filename {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-sm);
    
    /* Text ellipsis for long filenames */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.asset-metadata {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.metadata-item {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.metadata-item i {
    width: 12px;
    text-align: center;
    opacity: 0.7;
}

/* === ASSET ACTIONS === */
.asset-actions {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.asset-actions .asset-checkbox {
    margin: 0;
    cursor: pointer;
}

.asset-actions .btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.asset-actions .btn:focus {
    box-shadow: var(--focus-ring);
    outline: none;
}

/* === ASSET TYPE VARIATIONS === */
.asset-card.image-asset .asset-preview-container {
    background: linear-gradient(135deg, #667eea20, #764ba220);
}

.asset-card.video-asset .asset-preview-container {
    background: linear-gradient(135deg, #f093fb20, #f5576c20);
}

/* === EMPTY STATE === */
.empty-state {
    grid-column: 1 / -1;
    padding: var(--spacing-3xl);
    text-align: center;
    color: var(--text-muted);
}

.empty-state i {
    opacity: 0.5;
    margin-bottom: var(--spacing-lg);
}

.empty-state h4 {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.empty-state .btn {
    margin-top: var(--spacing-lg);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1200px) {
    .asset-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: var(--spacing-md);
    }
    
    :root {
        --asset-card-width: 200px;
        --asset-card-height: 260px;
    }
}

@media (max-width: 768px) {
    .asset-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    :root {
        --asset-card-width: 160px;
        --asset-card-height: 220px;
    }
    
    .asset-preview-container {
        height: 120px;
    }
    
    .asset-info {
        padding: var(--spacing-sm);
    }
    
    .asset-filename {
        font-size: var(--font-size-xs);
        -webkit-line-clamp: 1;
    }
    
    .asset-actions .btn {
        min-width: 28px;
        height: 28px;
        padding: var(--spacing-xs);
    }
}

@media (max-width: 576px) {
    .asset-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .asset-actions {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .metadata-item {
        font-size: 10px;
    }
}

/* === SELECTION STATE === */
.asset-card.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.asset-card.selected .asset-checkbox {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* === LOADING STATE === */
.asset-card.loading {
    pointer-events: none;
    opacity: 0.6;
}

.asset-card.loading .asset-preview {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* === DARK THEME ADJUSTMENTS === */
[data-theme="dark"] .asset-card {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .asset-card:hover {
    border-color: var(--primary-light);
}

[data-theme="dark"] .asset-actions {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .asset-card.loading .asset-preview {
    background: linear-gradient(90deg, #374151 25%, #4b5563 50%, #374151 75%);
    background-size: 200% 100%;
}

/* === HIGH CONTRAST MODE === */
@media (prefers-contrast: high) {
    .asset-card {
        border-width: 2px;
    }
    
    .asset-card:focus {
        outline: 3px solid;
        outline-offset: 2px;
    }
    
    .asset-overlay {
        background: rgba(0, 0, 0, 0.8);
    }
    
    .duration-badge,
    .size-badge {
        background: #000000;
        color: #ffffff;
        border: 1px solid #ffffff;
    }
    
    [data-theme="dark"] .duration-badge,
    [data-theme="dark"] .size-badge {
        background: #ffffff;
        color: #000000;
        border: 1px solid #000000;
    }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    .asset-card,
    .asset-thumbnail,
    .asset-overlay,
    .asset-overlay .btn {
        transition: none;
    }
    
    .asset-card:hover .asset-thumbnail {
        transform: none;
    }
    
    .asset-card.loading .asset-preview {
        animation: none;
        background: var(--bg-tertiary);
    }
}

/* === KEYBOARD NAVIGATION === */
.asset-card:focus-within {
    box-shadow: var(--focus-ring);
}

/* Improve focus indicators for actions */
.asset-actions .btn:focus-visible {
    box-shadow: var(--focus-ring);
    z-index: 1;
    position: relative;
}

/* === ASSET THUMBNAIL PLACEHOLDERS === */
.asset-thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: #6c757d;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    min-height: 160px;
}

[data-theme="dark"] .asset-thumbnail-placeholder {
    background: linear-gradient(135deg, #2d3748, #4a5568);
    color: #a0aec0;
}

.asset-thumbnail-placeholder i {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.7;
}

.asset-thumbnail-placeholder p {
    font-size: var(--font-size-sm);
    margin: 0;
    opacity: 0.8;
}

/* === IMAGE ERROR HANDLING === */
.asset-thumbnail[alt="Image unavailable"] {
    background: linear-gradient(135deg, #ffeaa7, #fab1a0);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2d3436;
    font-size: var(--font-size-sm);
    text-align: center;
    padding: var(--spacing-md);
}

.asset-thumbnail[alt="Image unavailable"]:before {
    content: "🖼️\A Image\A Unavailable";
    white-space: pre-line;
    font-weight: var(--font-weight-medium);
}

/* === LOADING STATES === */
.asset-card.loading .asset-thumbnail {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

[data-theme="dark"] .asset-card.loading .asset-thumbnail {
    background: linear-gradient(90deg, #374151 25%, #4b5563 50%, #374151 75%);
    background-size: 200% 100%;
}

/* === STAT BOXES FOR PROGRESS PANEL === */
.stat-box {
    padding: var(--spacing-sm);
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* === SOURCE CATEGORY STYLES === */
.source-category {
    margin-bottom: 1.5rem;
}

.source-category-header {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.source-category-header h6 {
    display: flex;
    align-items: center;
    margin: 0;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.source-category-header .badge {
    font-size: var(--font-size-xs);
}

/* === CLEAN SOURCES GRID === */
.sources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

/* === CLEAN SOURCE ITEM STYLES === */
.source-item-clean {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    cursor: pointer;
}

.source-item-clean:hover {
    background: rgba(102, 126, 234, 0.05);
}

.source-item-clean.locked {
    opacity: 0.6;
}

.source-item-clean.locked:hover {
    background: rgba(255, 193, 7, 0.05);
}

/* === SOURCE ICON (CHECKBOX OR LOCK) === */
.source-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.source-icon .form-check-input {
    width: 16px !important;
    height: 16px !important;
    min-width: 16px !important;
    max-width: 16px !important;
    margin: 0 !important;
    padding: 0 !important;
    cursor: pointer;
    border: 2px solid #6c757d;
    background-color: #fff;
    border-radius: 3px;
    transition: all 0.15s ease-in-out;
    flex-shrink: 0;
    display: inline-block;
    vertical-align: middle;
}

.source-icon .form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

.source-icon .form-check-input:focus {
    border-color: #667eea;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.source-icon .fas.fa-lock {
    font-size: 14px;
    color: #ffc107;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* === SOURCE LABEL === */
.source-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin: 0;
    cursor: pointer;
    flex: 1;
    line-height: 1.3;
}

.source-label.disabled {
    color: var(--text-muted);
    cursor: not-allowed;
}

/* === RESPONSIVE DESIGN FOR SOURCES === */
@media (max-width: 768px) {
    .sources-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
    
    .source-item-clean {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .source-label {
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 576px) {
    .source-category-header {
        padding: var(--spacing-sm);
    }
    
    .source-category-header h6 {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
}

/* === DARK THEME FOR CLEAN SOURCES === */
[data-theme="dark"] .source-category-header {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .sources-grid {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .source-item-clean:hover {
    background: rgba(102, 126, 234, 0.1);
}

[data-theme="dark"] .source-item-clean.locked:hover {
    background: rgba(255, 193, 7, 0.1);
}

[data-theme="dark"] .source-label {
    color: var(--dark-text-primary);
}

[data-theme="dark"] .source-label.disabled {
    color: var(--dark-text-muted);
}

/* === DOWNLOADS PAGE STYLES === */
.downloads-list {
    min-height: 200px;
}

.download-item {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-normal);
}

.download-item:hover {
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.download-item.active {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

.download-item.completed {
    border-color: var(--success-color);
    background: rgba(40, 167, 69, 0.05);
}

.download-item.error {
    border-color: var(--danger-color);
    background: rgba(220, 53, 69, 0.05);
}

.download-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.download-title {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0;
    flex: 1;
}

.download-status {
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-status.running {
    background: var(--info-color);
    color: white;
}

.download-status.completed {
    background: var(--success-color);
    color: white;
}

.download-status.error {
    background: var(--danger-color);
    color: white;
}

.download-status.queued {
    background: var(--warning-color);
    color: var(--text-dark);
}

.download-progress {
    margin: var(--spacing-sm) 0;
}

.download-progress .progress {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.download-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.download-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.download-actions .btn {
    padding: 2px 8px;
    font-size: var(--font-size-xs);
}

/* === KEYBOARD SHORTCUTS MODAL === */
.modal kbd {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 2px 6px;
    font-size: var(--font-size-xs);
    font-family: monospace;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* === IMPROVED DARK MODE SUPPORT === */
[data-theme="dark"] {
    --text-primary: #e9ecef;
    --text-secondary: #ced4da;
    --text-muted: #adb5bd;
    --text-dark: #212529;
    --text-white: #ffffff;
    
    --bg-primary: #212529;
    --bg-secondary: #343a40;
    --bg-tertiary: #495057;
    --bg-light: #f8f9fa;
    
    --card-bg: #343a40;
    --card-bg-hover: #495057;
    
    --border-color: #495057;
    --border-light: #6c757d;
    
    --dark-bg-primary: #121212;
    --dark-bg-secondary: #1e1e1e;
    --dark-bg-tertiary: #2d2d2d;
    --dark-border-color: #404040;
    
    --primary-color: #6c84f4;
    --primary-light: #8fa7f6;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
}

/* === DARK MODE ADJUSTMENTS === */
[data-theme="dark"] .navbar {
    background: var(--dark-bg-secondary) !important;
    border-bottom: 1px solid var(--dark-border-color);
}

[data-theme="dark"] .sidebar {
    background: var(--dark-bg-secondary);
    border-right: 1px solid var(--dark-border-color);
}

[data-theme="dark"] .content-area {
    background: var(--dark-bg-primary);
    color: var(--text-primary);
}

[data-theme="dark"] .card {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .card-header {
    background: var(--dark-bg-tertiary);
    border-bottom-color: var(--dark-border-color);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background: var(--dark-bg-tertiary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(108, 132, 244, 0.25);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-outline-primary {
    color: var(--primary-light);
    border-color: var(--primary-light);
}

[data-theme="dark"] .btn-outline-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    color: var(--text-dark);
}

[data-theme="dark"] .dropdown-menu {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .dropdown-item {
    color: var(--text-primary);
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background: var(--dark-bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-content {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-header {
    border-bottom-color: var(--dark-border-color);
}

[data-theme="dark"] .modal-footer {
    border-top-color: var(--dark-border-color);
}

[data-theme="dark"] .progress {
    background: var(--dark-bg-tertiary);
}

[data-theme="dark"] .alert {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .badge {
    color: var(--text-dark);
}

[data-theme="dark"] .text-muted {
    color: var(--text-muted) !important;
}

[data-theme="dark"] .download-item {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .download-item:hover {
    background: var(--dark-bg-tertiary);
}

[data-theme="dark"] .download-item.active {
    background: rgba(108, 132, 244, 0.15);
    border-color: var(--primary-light);
}

[data-theme="dark"] .download-item.completed {
    background: rgba(40, 167, 69, 0.15);
}

[data-theme="dark"] .download-item.error {
    background: rgba(220, 53, 69, 0.15);
}

/* === ACCESSIBILITY IMPROVEMENTS === */
@media (prefers-reduced-motion: reduce) {
    .download-item,
    .source-item-clean {
        transition: none;
    }
}

@media (prefers-contrast: high) {
    .download-item {
        border-width: 2px;
    }
    
    .download-status {
        border: 1px solid currentColor;
    }
    
    [data-theme="dark"] .download-item {
        border-color: #ffffff;
    }
    
    [data-theme="dark"] .card {
        border-color: #ffffff;
    }
}

/* === RESPONSIVE IMPROVEMENTS === */
@media (max-width: 768px) {
    .download-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .download-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .download-actions {
        margin-top: var(--spacing-sm);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
}

/* === VIDEO THUMBNAIL PLACEHOLDER === */
.video-thumbnail-placeholder {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: var(--radius-md);
}

.video-thumbnail-placeholder i {
    position: absolute;
    z-index: 2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    color: white;
}

.video-thumbnail-placeholder img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
    z-index: 1;
}

/* === CREDITS DISPLAY === */
.credits-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--warning);
}

[data-theme="dark"] .credits-display {
    background: rgba(255, 193, 7, 0.15);
    border-color: rgba(255, 193, 7, 0.4);
}

.credits-display i {
    color: #ffc107;
}

/* === THEME TOGGLE (FIXED) === */
#theme-toggle-btn {
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    background: var(--bg-primary) !important;
    transition: all 0.2s ease !important;
    padding: 0.5rem 0.75rem !important;
    border-radius: 0.375rem !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 44px !important;
    min-height: 44px !important;
}

#theme-toggle-btn:hover {
    background: var(--bg-secondary) !important;
    transform: scale(1.05) !important;
    border-color: var(--primary-color) !important;
}

#theme-toggle-btn:active {
    transform: scale(0.95) !important;
}

#theme-toggle-btn:focus {
    outline: 2px solid var(--primary-color) !important;
    outline-offset: 2px !important;
}

#theme-icon {
    font-size: 1rem !important;
    display: inline-block !important;
    opacity: 1 !important;
    visibility: visible !important;
}

[data-theme="dark"] #theme-toggle-btn {
    border-color: var(--dark-border-color) !important;
    color: var(--dark-text-primary) !important;
    background: var(--dark-bg-secondary) !important;
}

[data-theme="dark"] #theme-toggle-btn:hover {
    background: var(--dark-bg-tertiary) !important;
    border-color: var(--primary-color) !important;
}

/* === STATUS INDICATORS === */
.status-grid {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.status-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    transition: all 0.3s ease;
}

.status-indicator.online {
    background: #28a745;
    border-color: #1e7e34;
    box-shadow: 0 0 8px rgba(40, 167, 69, 0.5);
}

.status-indicator.offline {
    background: #dc3545;
    border-color: #c82333;
}

.status-indicator.idle {
    background: #ffc107;
    border-color: #e0a800;
}

.status-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* === QUICK ACTIONS === */
.quick-actions .btn {
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    padding: 0.375rem 0.75rem;
    transition: all 0.2s ease;
}

.quick-actions .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* === USER PROFILE === */
.profile-card {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
}

[data-theme="dark"] .profile-card {
    border-color: var(--dark-border-color);
    background: var(--dark-bg-secondary);
}

.avatar-placeholder {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

.username {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.credits-info {
    margin: 0.75rem 0;
}

.progress-sm {
    height: 4px;
}

.profile-actions {
    display: flex;
    gap: 0.5rem;
}

.profile-actions .btn {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

/* === SIDEBAR FOOTER === */
.sidebar-footer {
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

[data-theme="dark"] .sidebar-footer {
    border-top-color: var(--dark-border-color);
}

/* === ENHANCED ASSET GRID DEBUGGING === */
.asset-grid-debug {
    position: fixed;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
    z-index: 9999;
    max-width: 300px;
}

/* === ASSET LOADING STATES === */
.assets-loading {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.assets-loading .spinner {
    width: 3rem;
    height: 3rem;
    border: 3px solid var(--border-light);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.assets-error {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--danger);
}

.assets-error .error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

.assets-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.assets-empty .empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* === ASSET ITEM ENHANCEMENTS === */
.asset-item {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.2s ease;
    cursor: pointer;
}

.asset-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.asset-item.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.asset-thumbnail {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.asset-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s ease;
}

.asset-item:hover .asset-thumbnail img {
    transform: scale(1.05);
}

.asset-thumbnail video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* === ASSET OVERLAY === */
.asset-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom, 
        rgba(0, 0, 0, 0) 0%, 
        rgba(0, 0, 0, 0.7) 100%
    );
    opacity: 0;
    transition: opacity 0.2s ease;
    display: flex;
    align-items: flex-end;
    padding: 1rem;
}

.asset-item:hover .asset-overlay {
    opacity: 1;
}

.asset-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}

.asset-actions .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

/* === ASSET INFO === */
.asset-info {
    padding: 1rem;
}

.asset-filename {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.2;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.asset-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.asset-metadata .badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
}

.asset-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* === ASSET TYPE ICONS === */
.asset-type-icon {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    backdrop-filter: blur(4px);
}

.asset-duration {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: monospace;
    backdrop-filter: blur(4px);
}

/* === ASSET THUMBNAIL PLACEHOLDERS === */
.asset-thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: #6c757d;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    min-height: 160px;
}

[data-theme="dark"] .asset-thumbnail-placeholder {
    background: linear-gradient(135deg, #2d3748, #4a5568);
    color: #a0aec0;
}

.asset-thumbnail-placeholder i {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.7;
}

.asset-thumbnail-placeholder p {
    font-size: var(--font-size-sm);
    margin: 0;
    opacity: 0.8;
}

/* === IMAGE ERROR HANDLING === */
.asset-thumbnail img[data-error="true"] {
    display: none;
}

.asset-thumbnail.has-error::after {
    content: "📷";
    font-size: 3rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
}

/* === VIDEO THUMBNAIL PLACEHOLDER === */
.video-thumbnail-placeholder {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: var(--radius-md);
}

.video-thumbnail-placeholder i {
    position: absolute;
    z-index: 2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    color: white;
}

.video-thumbnail-placeholder img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
    z-index: 1;
}

/* === ASSET GRID RESPONSIVE === */
@media (max-width: 768px) {
    .asset-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.75rem;
    }
    
    .asset-thumbnail {
        height: 150px;
    }
    
    .asset-info {
        padding: 0.75rem;
    }
    
    .credits-display {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .asset-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem;
    }
}

/* === DARK MODE OVERRIDES === */
[data-theme="dark"] .asset-item {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .asset-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .asset-filename {
    color: var(--dark-text-primary);
}

[data-theme="dark"] .asset-size {
    color: var(--dark-text-muted);
}

[data-theme="dark"] .source-icon .form-check-input {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .source-icon .form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

/**
 * ============================================================================
 * ENHANCED ASSETS GRID - Redesigned
 * ============================================================================
 */

/* === ASSETS CONTAINER === */
.assets-container {
    position: relative;
    min-height: 400px;
}

/* === ASSETS GRID === */
.assets-grid {
    display: grid;
    gap: 1rem;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

/* Grid size variations */
.assets-grid.view-small {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.75rem;
}

.assets-grid.view-medium {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.assets-grid.view-large {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

/* === ASSET CARD === */
.asset-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.asset-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.asset-card.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

/* === ASSET IMAGE/VIDEO === */
.asset-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.asset-media img,
.asset-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.asset-card:hover .asset-media img,
.asset-card:hover .asset-media video {
    transform: scale(1.05);
}

/* === ASSET OVERLAY === */
.asset-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0.7) 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1rem;
}

.asset-card:hover .asset-overlay {
    opacity: 1;
}

/* === ASSET TYPE BADGE === */
.asset-type-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
}

.asset-type-badge.image {
    background: rgba(40, 167, 69, 0.9);
}

.asset-type-badge.video {
    background: rgba(220, 53, 69, 0.9);
}

/* === ASSET ACTIONS === */
.asset-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}

.asset-actions .btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    border-radius: 6px;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.2s ease;
}

.asset-actions .btn:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-dark);
}

/* === ASSET INFO === */
.asset-info {
    padding: 0.75rem;
    background: var(--card-bg);
}

.asset-filename {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.2;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.asset-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.asset-source {
    background: var(--primary-color);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 500;
}

/* === ASSET CHECKBOX === */
.asset-checkbox {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    backdrop-filter: blur(4px);
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
}

.asset-checkbox:checked {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* === PLACEHOLDERS === */
.asset-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 1rem;
    text-align: center;
}

.asset-placeholder i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

.asset-placeholder.error {
    background: linear-gradient(135deg, #fff5f5, #fed7d7);
    color: var(--danger-color);
}

.asset-placeholder.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
    .assets-grid.view-small {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.5rem;
    }
    
    .assets-grid.view-medium {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.75rem;
    }
    
    .assets-grid.view-large {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    .asset-info {
        padding: 0.5rem;
    }
    
    .asset-filename {
        font-size: 0.8rem;
        -webkit-line-clamp: 1;
    }
    
    .asset-actions .btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .assets-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem;
    }
}

/* === DARK THEME === */
[data-theme="dark"] .asset-card {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

[data-theme="dark"] .asset-card:hover {
    border-color: var(--primary-light);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .asset-info {
    background: var(--dark-bg-secondary);
}

[data-theme="dark"] .asset-filename {
    color: var(--dark-text-primary);
}

[data-theme="dark"] .asset-placeholder {
    background: linear-gradient(135deg, #2d3748, #4a5568);
    color: var(--dark-text-muted);
}

[data-theme="dark"] .asset-placeholder.loading {
    background: linear-gradient(90deg, #374151 25%, #4b5563 50%, #374151 75%);
    background-size: 200% 100%;
}

/* === LOADING STATES === */
.assets-loading .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* === PAGINATION === */
.pagination .page-link {
    border-radius: 8px;
    margin: 0 2px;
    transition: all 0.2s ease;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

[data-theme="dark"] .pagination .page-link {
    background-color: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

[data-theme="dark"] .pagination .page-link:hover {
    background-color: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
}

/* === SYSTEM STATUS THEME COMPLIANCE === */
.system-status {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}

[data-theme="dark"] .system-status {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    transition: all 0.3s ease;
}

[data-theme="dark"] .status-indicator {
    border-color: var(--dark-border-color);
    background: var(--dark-bg-secondary);
}

.status-indicator.online {
    background: #28a745;
    border-color: #1e7e34;
    box-shadow: 0 0 8px rgba(40, 167, 69, 0.5);
}

.status-indicator.offline {
    background: #dc3545;
    border-color: #c82333;
}

.status-indicator.idle {
    background: #ffc107;
    border-color: #e0a800;
}

.status-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

[data-theme="dark"] .status-label {
    color: var(--dark-text-muted);
}

/* === ENHANCED VIDEO HOVER FUNCTIONALITY === */
.video-hover-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.video-thumbnail-image,
.video-hover-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.video-hover-preview {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}

.video-play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 2.5em;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
    z-index: 3;
    transition: all 0.3s ease;
    opacity: 1;
    cursor: pointer;
}

.asset-card:hover .video-play-icon {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
}

/* Video hover effects */
.video-hover-container:hover .video-thumbnail-image {
    opacity: 0.3;
}

.video-hover-container:hover .video-hover-preview {
    opacity: 1;
}

/* Responsive adjustments for video hover */
@media (max-width: 768px) {
    .video-play-icon {
        font-size: 2em;
    }
}

@media (max-width: 480px) {
    .video-play-icon {
        font-size: 1.5em;
    }
}