/**
 * Contacts Manager - Media Share System Styles
 * Comprehensive styles for media upload, gallery, albums, and sharing
 * Version 4.0.0
 */

/* ========================================
   Media Share CSS Custom Properties
   ======================================== */
:root {
    /* Media-specific variables */
    --media-grid-gap: 1rem;
    --media-item-bg: var(--bg-primary);
    --media-item-border: var(--border-primary);
    --media-overlay-bg: rgba(0, 0, 0, 0.6);
    --lightbox-bg: rgba(0, 0, 0, 0.95);
    --upload-zone-border: var(--border-secondary);
    --upload-zone-bg-hover: var(--bg-hover);

    /* Media panel layout */
    --media-sidebar-width: 16rem;
    --media-header-height: 4rem;

    /* Thumbnail sizes */
    --thumbnail-sm: 4rem;
    --thumbnail-md: 8rem;
    --thumbnail-lg: 12rem;

    /* File type colors */
    --file-image-color: var(--color-success);
    --file-video-color: var(--color-purple);
    --file-audio-color: var(--color-orange);
    --file-document-color: var(--color-info);
    --file-archive-color: var(--color-warning);
}

/* Dark Theme Overrides */
[data-theme="dark"] {
    --media-item-bg: var(--bg-secondary);
    --media-item-border: var(--border-primary);
    --media-overlay-bg: rgba(0, 0, 0, 0.75);
    --lightbox-bg: rgba(0, 0, 0, 0.98);
    --upload-zone-border: var(--border-secondary);
    --upload-zone-bg-hover: rgba(129, 140, 248, 0.08);
}

/* ========================================
   1. Media Panel Layout
   ======================================== */
.media-panel {
    display: flex;
    height: 100%;
    background-color: var(--bg-secondary);
    overflow: hidden;
}

.media-sidebar {
    width: var(--media-sidebar-width);
    height: 100%;
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
    transition: transform var(--transition-slow), width var(--transition-slow);
}

.media-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
}

.media-sidebar-header h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.albums-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.album-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.album-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.album-item.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.album-item .album-icon {
    font-size: 1rem;
    width: 1.5rem;
    text-align: center;
    flex-shrink: 0;
}

.album-item .album-name {
    flex: 1;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.album-item .album-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background-color: var(--bg-tertiary);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
}

.album-item.active .album-count {
    background-color: var(--color-primary);
    color: white;
}

.media-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background-color: var(--bg-secondary);
    overflow: hidden;
}

.media-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
    min-height: var(--media-header-height);
    flex-shrink: 0;
    gap: 1rem;
}

.media-header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.media-back-btn {
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.media-back-btn:hover {
    background-color: var(--bg-hover);
    color: var(--color-primary);
}

/* Title Group - Title and Count Badge */
.media-title-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.media-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    white-space: nowrap;
}

.media-count-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
}

/* Legacy support for media-count class */
.media-count {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.media-header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.media-filters {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-secondary);
    padding: 0.25rem;
    border-radius: var(--radius-lg);
}

.media-filter-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.media-filter-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.media-filter-btn.active {
    background-color: var(--bg-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.media-filter-btn i {
    font-size: 0.875rem;
}

.media-header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* View Toggle Buttons - Icon Only with Active State */
.media-view-toggle {
    display: flex;
    align-items: center;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    padding: 0.25rem;
    gap: 0.125rem;
}

.media-view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.media-view-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-hover);
}

.media-view-btn.active {
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.media-view-btn i {
    font-size: 0.875rem;
}

/* Legacy support for .view-btn inside .media-view-toggle */
.media-view-toggle .view-btn {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.media-view-toggle .view-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-hover);
}

.media-view-toggle .view-btn.active {
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* Upload Button in Header - Matches New Contact Button Style */
#media-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-primary);
    white-space: nowrap;
}

#media-upload-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

#media-upload-btn:active {
    transform: translateY(0);
}

#media-upload-btn i {
    font-size: 0.875rem;
}

.media-header-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.media-header-count {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.media-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.media-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1.5rem;
}

.media-grid-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1.5rem;
}

/* Media Upload Zone - Drag & Drop Area */
.media-upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 12rem;
    padding: 2rem;
    background-color: var(--bg-primary);
    border: 2px dashed var(--border-secondary);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    margin-bottom: 1.5rem;
}

.media-upload-zone:hover {
    border-color: var(--color-primary);
    background-color: var(--upload-zone-bg-hover);
}

.media-upload-zone.drag-over {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    border-style: solid;
}

.media-upload-zone .upload-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.media-upload-zone .upload-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    opacity: 0.8;
}

.media-upload-zone h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.media-upload-zone p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0 0 1rem 0;
}

.media-upload-zone .upload-progress {
    width: 100%;
    max-width: 20rem;
    margin-top: 1rem;
}

.media-upload-zone .progress-bar {
    height: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.media-upload-zone .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.media-upload-zone .progress-text {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ========================================
   2. Upload Area
   ======================================== */
.upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 12rem;
    padding: 2rem;
    background-color: var(--bg-secondary);
    border: 2px dashed var(--upload-zone-border);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

.upload-zone:hover {
    border-color: var(--color-primary);
    background-color: var(--upload-zone-bg-hover);
}

.upload-zone.drag-over {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    border-style: solid;
    animation: uploadPulse 1s ease-in-out infinite;
}

@keyframes uploadPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.2);
    }
    50% {
        transform: scale(1.01);
        box-shadow: 0 0 0 8px rgba(99, 102, 241, 0);
    }
}

.upload-zone-icon {
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-primary-100) 100%);
    border-radius: var(--radius-2xl);
    margin-bottom: 1rem;
}

.upload-zone-icon i {
    font-size: 1.75rem;
    color: var(--color-primary);
}

.upload-zone.drag-over .upload-zone-icon {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.upload-zone.drag-over .upload-zone-icon i {
    color: white;
    animation: uploadBounce 0.5s ease-in-out infinite;
}

@keyframes uploadBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.upload-zone-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-zone-subtext {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    border-radius: var(--radius-lg);
    color: white;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-primary);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.upload-btn:active {
    transform: translateY(0);
}

/* Upload Progress */
.upload-progress-container {
    width: 100%;
    max-width: 24rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
}

.upload-progress-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.upload-progress-bar {
    height: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.upload-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
    animation: progressShimmer 2s ease-in-out infinite;
}

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

.upload-progress-text {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.upload-progress-percent {
    font-weight: 600;
    color: var(--color-primary);
}

/* Upload Queue */
.upload-queue {
    width: 100%;
    max-width: 24rem;
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.upload-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    animation: uploadItemAppear 0.3s ease-out;
}

@keyframes uploadItemAppear {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.upload-item-icon {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.upload-item-icon i {
    font-size: 1rem;
    color: var(--text-tertiary);
}

.upload-item-info {
    flex: 1;
    min-width: 0;
}

.upload-item-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.upload-item-status {
    font-size: 0.75rem;
    color: var(--color-success);
}

.upload-item-status.error {
    color: var(--color-danger);
}

.upload-item-cancel {
    width: 1.75rem;
    height: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-item-cancel:hover {
    background-color: var(--color-danger-light);
    color: var(--color-danger);
}

/* ========================================
   3. Media Grid
   ======================================== */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
    gap: var(--media-grid-gap);
}

.media-grid.compact {
    grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
    gap: 0.75rem;
}

.media-grid.large {
    grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
    gap: 1.25rem;
}

.media-item {
    position: relative;
    background-color: var(--media-item-bg);
    border: 1px solid var(--media-item-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
    animation: mediaItemAppear 0.3s ease-out backwards;
}

@keyframes mediaItemAppear {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.media-item:nth-child(1) { animation-delay: 0.02s; }
.media-item:nth-child(2) { animation-delay: 0.04s; }
.media-item:nth-child(3) { animation-delay: 0.06s; }
.media-item:nth-child(4) { animation-delay: 0.08s; }
.media-item:nth-child(5) { animation-delay: 0.10s; }
.media-item:nth-child(6) { animation-delay: 0.12s; }
.media-item:nth-child(7) { animation-delay: 0.14s; }
.media-item:nth-child(8) { animation-delay: 0.16s; }

.media-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.media-item.selected {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light), var(--shadow-md);
}

.media-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 Aspect ratio */
    background-color: var(--bg-tertiary);
    overflow: hidden;
}

.media-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.media-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
}

.media-placeholder i {
    font-size: 2rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.media-placeholder span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.media-type-icon {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    width: 1.75rem;
    height: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 0.75rem;
}

.media-duration {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    padding: 0.25rem 0.5rem;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 0.6875rem;
    font-weight: 500;
}

/* Media Item Overlay */
.media-item-overlay {
    position: absolute;
    inset: 0;
    background-color: var(--media-overlay-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.media-item:hover .media-item-overlay {
    opacity: 1;
    visibility: visible;
}

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

.media-item-action {
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(4px);
}

.media-item-action:hover {
    background-color: var(--color-primary);
    transform: scale(1.1);
}

.media-item-action.danger:hover {
    background-color: var(--color-danger);
}

/* Media Item Info */
.media-item-info {
    padding: 0.75rem;
    border-top: 1px solid var(--border-primary);
}

.media-item-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
}

.media-item-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.media-item-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Media Checkbox */
.media-checkbox {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--border-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-fast);
    z-index: 2;
}

.media-item:hover .media-checkbox,
.media-item.selected .media-checkbox {
    opacity: 1;
}

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

.media-checkbox.checked i {
    color: white;
    font-size: 0.75rem;
}

/* ========================================
   4. Media Preview / Lightbox
   ======================================== */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background-color: var(--lightbox-bg);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.lightbox-overlay.open {
    opacity: 1;
    visibility: visible;
}

.lightbox-container {
    position: relative;
    display: flex;
    width: 100%;
    height: 100%;
    max-width: 100vw;
    max-height: 100vh;
}

.lightbox-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    min-width: 0;
}

.lightbox-image {
    max-width: 100%;
    max-height: calc(100vh - 8rem);
    object-fit: contain;
    border-radius: var(--radius-md);
    animation: lightboxZoomIn 0.3s ease-out;
}

@keyframes lightboxZoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-video {
    max-width: 100%;
    max-height: calc(100vh - 8rem);
    border-radius: var(--radius-md);
    background-color: black;
}

/* Lightbox Navigation */
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
}

.lightbox-nav.prev {
    left: 1rem;
}

.lightbox-nav.next {
    right: 1rem;
}

.lightbox-nav-btn {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(4px);
}

.lightbox-nav-btn:hover {
    background-color: var(--color-primary);
    transform: scale(1.1);
}

.lightbox-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}

/* Lightbox Close */
.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: 1.125rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 20;
}

.lightbox-close:hover {
    background-color: var(--color-danger);
    transform: rotate(90deg);
}

/* Lightbox Info Panel */
.lightbox-info {
    width: 20rem;
    height: 100%;
    background-color: var(--bg-primary);
    border-left: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
}

.lightbox-info.open {
    transform: translateX(0);
}

.lightbox-info-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border-primary);
}

.lightbox-info-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.lightbox-info-toggle {
    position: absolute;
    top: 1rem;
    right: 22rem;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 15;
}

.lightbox-info-toggle:hover {
    background-color: var(--color-primary);
}

.lightbox-info-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.lightbox-info-section {
    margin-bottom: 1.5rem;
}

.lightbox-info-section:last-child {
    margin-bottom: 0;
}

.lightbox-info-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.lightbox-info-value {
    font-size: 0.9375rem;
    color: var(--text-primary);
    word-break: break-word;
}

/* Lightbox Actions */
.lightbox-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border-top: 1px solid var(--border-primary);
}

.lightbox-action-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox-action-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.lightbox-action-btn.primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-color: transparent;
    color: white;
}

.lightbox-action-btn.primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
}

.lightbox-action-btn.danger:hover {
    border-color: var(--color-danger);
    color: var(--color-danger);
}

/* Lightbox Thumbnails Strip */
.lightbox-thumbnails {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 5rem;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    overflow-x: auto;
    backdrop-filter: blur(8px);
}

.lightbox-thumb {
    width: 3.5rem;
    height: 3.5rem;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    opacity: 0.6;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.lightbox-thumb:hover {
    opacity: 0.9;
}

.lightbox-thumb.active {
    opacity: 1;
    border-color: var(--color-primary);
}

.lightbox-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================
   5. Albums
   ======================================== */
.album-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
    gap: var(--media-grid-gap);
}

.album-card {
    position: relative;
    background-color: var(--media-item-bg);
    border: 1px solid var(--media-item-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.album-cover {
    position: relative;
    width: 100%;
    padding-top: 66.67%; /* 3:2 Aspect ratio */
    background-color: var(--bg-tertiary);
    overflow: hidden;
}

.album-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.album-card:hover .album-cover img {
    transform: scale(1.05);
}

.album-cover-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-primary-100) 100%);
}

.album-cover-placeholder i {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.album-cover-placeholder span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.album-info {
    padding: 1rem;
}

.album-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
}

.album-count {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.album-count i {
    font-size: 0.75rem;
}

.album-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.album-card:hover .album-actions {
    opacity: 1;
}

.album-action-btn {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.album-action-btn:hover {
    background-color: var(--color-primary);
    color: white;
}

.album-action-btn.danger:hover {
    background-color: var(--color-danger);
}

/* Album Detail Header */
.album-detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
}

.album-back-btn {
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.album-back-btn:hover {
    background-color: var(--bg-hover);
    color: var(--color-primary);
}

.album-detail-info {
    flex: 1;
}

.album-detail-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.album-detail-count {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Album Breadcrumb */
.album-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.album-breadcrumb a {
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.album-breadcrumb a:hover {
    color: var(--color-primary-hover);
}

.album-breadcrumb-separator {
    font-size: 0.75rem;
}

/* ========================================
   6. Share UI
   ======================================== */
.share-modal .modal-container {
    max-width: 32rem;
}

.share-recipient-input {
    position: relative;
    margin-bottom: 1rem;
}

.share-recipient-input input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-fast);
}

.share-recipient-input input:focus {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

.share-recipient-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 15rem;
    overflow-y: auto;
    z-index: var(--z-dropdown);
}

.share-suggestion-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.share-suggestion-item:hover {
    background-color: var(--bg-hover);
}

.share-recipient-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.share-recipient-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.5rem 0.375rem 0.375rem;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
}

.share-recipient-pill .pill-avatar {
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-purple) 100%);
    border-radius: var(--radius-full);
    color: white;
    font-size: 0.5rem;
    font-weight: 600;
}

.share-recipient-pill .pill-remove {
    width: 1rem;
    height: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-recipient-pill .pill-remove:hover {
    background-color: var(--color-primary);
    color: white;
}

/* Share Permission Select */
.share-permission-select {
    margin-bottom: 1rem;
}

.share-permission-select label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

.share-permission-select select {
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    outline: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-permission-select select:focus {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

/* Share Message Input */
.share-message-input {
    margin-bottom: 1rem;
}

.share-message-input label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

.share-message-input textarea {
    width: 100%;
    min-height: 5rem;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    outline: none;
    resize: vertical;
    transition: all var(--transition-fast);
}

.share-message-input textarea:focus {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

/* Share Expiry Input */
.share-expiry-input {
    margin-bottom: 1rem;
}

.share-expiry-input label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

.share-expiry-input input[type="date"] {
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    outline: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-expiry-input input[type="date"]:focus {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

/* Share Link Section */
.share-link-section {
    padding: 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.share-link-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

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

.share-link-toggle {
    position: relative;
    width: 2.5rem;
    height: 1.375rem;
    background-color: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.share-link-toggle.active {
    background-color: var(--color-primary);
}

.share-link-toggle::after {
    content: '';
    position: absolute;
    top: 0.1875rem;
    left: 0.1875rem;
    width: 1rem;
    height: 1rem;
    background-color: white;
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.share-link-toggle.active::after {
    transform: translateX(1.125rem);
}

.share-link-input-wrapper {
    display: flex;
    gap: 0.5rem;
}

.share-link-input {
    flex: 1;
    padding: 0.625rem 0.875rem;
    font-size: 0.8125rem;
    font-family: monospace;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    outline: none;
}

.share-link-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-link-copy:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.share-link-copy.copied {
    background-color: var(--color-success-light);
    border-color: var(--color-success);
    color: var(--color-success);
}

/* Share List */
.share-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 15rem;
    overflow-y: auto;
}

.share-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.share-item-avatar {
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-purple) 100%);
    border-radius: var(--radius-full);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.share-item-info {
    flex: 1;
    min-width: 0;
}

.share-item-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.share-item-permission {
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
}

.share-item-permission.view {
    background-color: var(--color-info-light);
    color: var(--color-info);
}

.share-item-permission.edit {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
}

.share-item-permission.owner {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.share-item-actions {
    display: flex;
    gap: 0.25rem;
}

.share-item-action {
    width: 1.75rem;
    height: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-item-action:hover {
    background-color: var(--bg-hover);
    color: var(--color-primary);
}

.share-item-action.danger:hover {
    background-color: var(--color-danger-light);
    color: var(--color-danger);
}

/* ========================================
   7. Shared With Me
   ======================================== */
.shared-media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
    gap: var(--media-grid-gap);
}

.shared-item {
    position: relative;
    background-color: var(--media-item-bg);
    border: 1px solid var(--media-item-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.shared-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.shared-item-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 Aspect ratio */
    background-color: var(--bg-tertiary);
    overflow: hidden;
}

.shared-item-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.shared-item-info {
    padding: 0.875rem;
}

.shared-item-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.5rem;
}

.shared-item-from {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.shared-item-from-avatar {
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-purple) 100%);
    border-radius: var(--radius-full);
    color: white;
    font-size: 0.5rem;
    font-weight: 600;
}

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

.shared-item-message {
    margin-top: 0.5rem;
    padding: 0.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-style: italic;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ========================================
   8. Sidebar / Filters
   ======================================== */
.media-filter-section {
    padding: 1rem;
    border-bottom: 1px solid var(--border-primary);
}

.media-filter-title {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

/* Media Type Filter */
.media-type-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.media-type-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.media-type-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.media-type-btn.active {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.media-type-btn i {
    font-size: 0.75rem;
}

/* Album List in Sidebar */
.album-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.album-list-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 0.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.album-list-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.album-list-item.active {
    background-color: var(--bg-selected);
    color: var(--color-primary);
}

.album-list-item-icon {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.album-list-item.active .album-list-item-icon {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.album-list-item-name {
    flex: 1;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.album-list-item-count {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Media Header Center - Filter Container */
.media-header-center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

/* Media Filters Container */
.media-filters {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: 0.25rem;
}

/* Media Filter Buttons - Segmented Control Style */
.media-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.media-filter-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.media-filter-btn.active {
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.media-filter-btn i {
    font-size: 0.875rem;
}

.media-filter-btn span {
    font-size: 0.875rem;
}

/* Dark theme adjustments for filter buttons */
[data-theme="dark"] .media-filters {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
}

[data-theme="dark"] .media-filter-btn:hover {
    background-color: var(--bg-hover);
}

[data-theme="dark"] .media-filter-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

/* Media View Toggle - Grid/List Icons */
.media-view-toggle {
    display: flex;
    align-items: center;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 0.25rem;
    margin-left: 0.75rem;
}

.media-view-toggle .view-btn,
.media-view-toggle .media-view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.media-view-toggle .view-btn:hover,
.media-view-toggle .media-view-btn:hover {
    color: var(--text-primary);
}

.media-view-toggle .view-btn.active,
.media-view-toggle .media-view-btn.active {
    background-color: var(--bg-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* Dark theme adjustments for view toggle */
[data-theme="dark"] .media-view-toggle {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
}

[data-theme="dark"] .media-view-toggle .view-btn.active,
[data-theme="dark"] .media-view-toggle .media-view-btn.active {
    background-color: var(--bg-tertiary);
}

/* ========================================
   9. Storage Stats
   ======================================== */
.storage-stats {
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin: 1rem;
}

.storage-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

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

.storage-bar {
    height: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.storage-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.storage-bar-fill.warning {
    background: linear-gradient(90deg, var(--color-warning) 0%, var(--color-orange) 100%);
}

.storage-bar-fill.danger {
    background: linear-gradient(90deg, var(--color-danger) 0%, var(--color-pink) 100%);
}

.storage-text {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.storage-text strong {
    color: var(--text-primary);
}

.storage-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.storage-type-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
}

.storage-type-icon {
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
}

.storage-type-icon.images {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.storage-type-icon.videos {
    background-color: var(--color-purple-light);
    color: var(--color-purple);
}

.storage-type-icon.audio {
    background-color: var(--color-orange-light);
    color: var(--color-orange);
}

.storage-type-icon.documents {
    background-color: var(--color-info-light);
    color: var(--color-info);
}

.storage-type-icon.other {
    background-color: var(--bg-tertiary);
    color: var(--text-muted);
}

.storage-type-name {
    flex: 1;
    color: var(--text-secondary);
}

.storage-type-value {
    color: var(--text-primary);
    font-weight: 500;
}

/* ========================================
   10. Empty States
   ======================================== */

/* Media Empty State - Centered in content area */
.media-empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    min-height: calc(100vh - 16rem);
    padding: 2rem;
}

.media-empty-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    max-width: 24rem;
}

.media-empty-state .empty-icon {
    width: 5rem;
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-primary-100) 100%);
    border-radius: var(--radius-2xl);
    margin-bottom: 1.5rem;
}

.media-empty-state .empty-icon i {
    font-size: 2.25rem;
    color: var(--color-primary);
}

.media-empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
}

.media-empty-state p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin: 0 0 1.5rem 0;
    line-height: 1.5;
}

.media-empty-state .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Legacy empty state classes */
.no-media,
.no-albums,
.no-shares {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    text-align: center;
    height: 100%;
    min-height: 20rem;
}

.no-media .empty-icon,
.no-albums .empty-icon,
.no-shares .empty-icon {
    width: 5rem;
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-primary-100) 100%);
    border-radius: var(--radius-2xl);
    margin-bottom: 1.5rem;
}

.no-media .empty-icon i,
.no-albums .empty-icon i,
.no-shares .empty-icon i {
    font-size: 2rem;
    color: var(--color-primary);
}

.no-media h3,
.no-albums h3,
.no-shares h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.no-media p,
.no-albums p,
.no-shares p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    max-width: 20rem;
}

/* Media Loading State */
.media-loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    min-height: calc(100vh - 16rem);
    padding: 2rem;
    text-align: center;
}

.media-loading-state .loading-spinner {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.media-loading-state .loading-spinner i {
    font-size: 2rem;
    color: var(--color-primary);
}

.media-loading-state p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin: 0;
}

/* ========================================
   11. File Type Icons
   ======================================== */
.file-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.file-icon-image {
    background-color: var(--color-success-light);
    color: var(--file-image-color);
}

.file-icon-video {
    background-color: var(--color-purple-light);
    color: var(--file-video-color);
}

.file-icon-audio {
    background-color: var(--color-orange-light);
    color: var(--file-audio-color);
}

.file-icon-document {
    background-color: var(--color-info-light);
    color: var(--file-document-color);
}

.file-icon-archive {
    background-color: var(--color-warning-light);
    color: var(--file-archive-color);
}

/* ========================================
   12. Dark Mode Additional Overrides
   ======================================== */
[data-theme="dark"] .upload-zone {
    background-color: var(--bg-tertiary);
}

[data-theme="dark"] .upload-zone.drag-over {
    background-color: rgba(129, 140, 248, 0.15);
}

[data-theme="dark"] .upload-btn {
    box-shadow: 0 4px 14px rgba(129, 140, 248, 0.3);
}

[data-theme="dark"] .media-checkbox {
    background-color: rgba(30, 41, 59, 0.9);
}

[data-theme="dark"] .album-action-btn {
    background-color: rgba(30, 41, 59, 0.9);
}

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

[data-theme="dark"] .share-link-toggle::after {
    background-color: var(--bg-primary);
}

/* ========================================
   13. Mobile Responsive
   ======================================== */
@media (max-width: 64rem) {
    :root {
        --media-sidebar-width: 14rem;
    }

    .media-grid {
        grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
    }

    .album-grid {
        grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
    }
}

@media (max-width: 48rem) {
    .media-panel {
        flex-direction: column;
    }

    .media-sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        width: 80%;
        max-width: 18rem;
        height: 100vh;
        z-index: var(--z-modal);
        transition: left var(--transition-slow);
    }

    .media-sidebar.open {
        left: 0;
    }

    .media-main {
        width: 100%;
    }

    .media-header {
        padding: 0.875rem 1rem;
    }

    .media-content {
        padding: 1rem;
    }

    .media-grid {
        grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
        gap: 0.75rem;
    }

    .album-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    /* Lightbox Mobile */
    .lightbox-content {
        padding: 1rem;
    }

    .lightbox-nav-btn {
        width: 2.5rem;
        height: 2.5rem;
    }

    .lightbox-info {
        position: fixed;
        bottom: -100%;
        left: 0;
        right: 0;
        width: 100%;
        height: auto;
        max-height: 60vh;
        border-left: none;
        border-top: 1px solid var(--border-primary);
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        transform: translateY(100%);
    }

    .lightbox-info.open {
        bottom: 0;
        transform: translateY(0);
    }

    .lightbox-info-toggle {
        right: 1rem;
        top: auto;
        bottom: 6rem;
    }

    .lightbox-thumbnails {
        height: 4rem;
    }

    .lightbox-thumb {
        width: 2.5rem;
        height: 2.5rem;
    }

    /* Touch-friendly targets */
    .media-item-action,
    .album-action-btn,
    .upload-item-cancel {
        width: 2.5rem;
        height: 2.5rem;
    }

    .media-type-btn {
        padding: 0.625rem 1rem;
    }

    .upload-zone {
        min-height: 10rem;
        padding: 1.5rem;
    }

    /* Media filters responsive - tablet */
    .media-header {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .media-header-center {
        order: 3;
        width: 100%;
        justify-content: flex-start;
    }

    .media-filters {
        flex-wrap: wrap;
        width: 100%;
    }

    .media-filter-btn {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }

    .media-filter-btn span {
        font-size: 0.8125rem;
    }

    .media-view-toggle {
        margin-left: auto;
    }
}

@media (max-width: 30rem) {
    .media-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .shared-media-grid {
        grid-template-columns: 1fr;
    }

    .lightbox-nav {
        display: none;
    }

    .share-link-input-wrapper {
        flex-direction: column;
    }

    .share-link-copy {
        width: 100%;
        padding: 0.625rem;
    }

    /* Media filters responsive - mobile */
    .media-filters {
        gap: 0.25rem;
        padding: 0.25rem;
    }

    .media-filter-btn {
        padding: 0.375rem 0.625rem;
        font-size: 0.75rem;
        gap: 0.375rem;
    }

    .media-filter-btn i {
        font-size: 0.75rem;
    }

    .media-filter-btn span {
        font-size: 0.75rem;
    }

    /* Hide text labels on very small screens, show only icons */
    .media-filter-btn span {
        display: none;
    }

    .media-filter-btn {
        padding: 0.5rem 0.625rem;
    }

    .media-view-toggle .view-btn {
        width: 2rem;
        height: 2rem;
    }
}

/* ========================================
   14. Animations
   ======================================== */
/* Upload Progress Animation */
.upload-progress-fill {
    background: linear-gradient(
        90deg,
        var(--color-primary) 0%,
        var(--color-secondary) 50%,
        var(--color-primary) 100%
    );
    background-size: 200% 100%;
    animation: progressMove 1.5s linear infinite;
}

@keyframes progressMove {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

/* Grid Item Appear Animation */
.media-grid-animate .media-item {
    animation: gridItemAppear 0.4s ease-out backwards;
}

@keyframes gridItemAppear {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Lightbox Fade In/Out */
.lightbox-overlay {
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.lightbox-overlay.open .lightbox-image,
.lightbox-overlay.open .lightbox-video {
    animation: lightboxContentIn 0.3s ease-out;
}

@keyframes lightboxContentIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Drag-Over Pulse Effect */
.upload-zone.drag-over {
    animation: dragOverPulse 1s ease-in-out infinite;
}

@keyframes dragOverPulse {
    0%, 100% {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    50% {
        border-color: var(--color-secondary);
        box-shadow: 0 0 0 8px rgba(99, 102, 241, 0);
    }
}

/* Selection Animation */
.media-item.selected {
    animation: itemSelect 0.2s ease-out;
}

@keyframes itemSelect {
    0% { transform: scale(1); }
    50% { transform: scale(0.98); }
    100% { transform: scale(1); }
}

/* Loading Skeleton */
.media-skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 25%,
        var(--bg-tertiary) 50%,
        var(--bg-secondary) 75%
    );
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s ease-in-out infinite;
}

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

/* ========================================
   15. Utility Classes
   ======================================== */
.media-hidden {
    display: none !important;
}

.media-visible {
    display: flex !important;
}

.media-fade-in {
    animation: fadeIn 0.3s ease-out;
}

.media-slide-up {
    animation: slideUp 0.3s ease-out;
}

/* Selection Mode */
.selection-mode .media-checkbox {
    opacity: 1;
}

.selection-mode .media-item:hover .media-item-overlay {
    opacity: 0;
    visibility: hidden;
}

/* Drag State */
.media-item.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.media-item.drag-over {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* ========================================
   16. Print Styles
   ======================================== */
@media print {
    .media-sidebar,
    .media-header-actions,
    .upload-zone,
    .lightbox-overlay,
    .media-item-actions,
    .media-checkbox {
        display: none !important;
    }

    .media-main {
        width: 100%;
    }

    .media-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .media-item {
        break-inside: avoid;
    }
}

/* ========================================
   17. Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .media-item,
    .album-card,
    .upload-zone,
    .upload-item,
    .lightbox-overlay,
    .upload-progress-fill,
    .media-skeleton {
        animation: none !important;
    }

    .media-thumbnail img,
    .album-cover img {
        transition: none !important;
    }

    .lightbox-close:hover {
        transform: none;
    }
}

/* ========================================
   18. Focus Styles
   ======================================== */
.media-item:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

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

.lightbox-nav-btn:focus-visible,
.lightbox-close:focus-visible,
.media-item-action:focus-visible,
.album-action-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.media-type-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
}

.media-filter-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.media-view-toggle .view-btn:focus-visible,
.media-view-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

#media-upload-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}