/* DJ Mix Web - Browser & Playlist Styles */

/* Browser Section */
.browser-section {
    display: flex;
    flex-direction: column;
    gap: 0;
    height: 200px;
    min-height: 100px;
    max-height: 70vh;
    flex-shrink: 0;
    position: relative;
}

/* Resize Handle */
.browser-resize-handle {
    height: 12px;
    background: var(--bg-tertiary);
    cursor: ns-resize;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
    position: relative;
}

.browser-resize-handle:hover {
    background: var(--border-highlight);
}

/* Collapse Button */
.browser-collapse-btn {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 2px;
    color: var(--text-muted);
    font-size: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 1;
}

.browser-collapse-btn:hover {
    background: var(--border-highlight);
    color: var(--text-primary);
    border-color: var(--deck-a-color);
}

.browser-collapse-btn .collapse-icon {
    transition: transform var(--transition-normal);
}

/* Collapsed Header (hidden by default) */
.browser-collapsed-header {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: 2px var(--spacing-md);
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.browser-collapsed-header .collapsed-separator {
    color: var(--border-color);
}

/* Collapsed State */
.browser-section.collapsed {
    height: auto !important;
    min-height: auto !important;
}

.browser-section.collapsed .browser-resize-handle {
    cursor: pointer;
}

.browser-section.collapsed .browser-collapse-btn .collapse-icon {
    transform: rotate(180deg);
}

.browser-section.collapsed .browser-collapsed-header {
    display: flex;
}

.browser-section.collapsed .browser-content {
    display: none;
}

/* Browser Content (folders + playlist) */
.browser-content {
    display: flex;
    gap: var(--spacing-md);
    flex: 1;
    min-height: 0;
    padding: var(--spacing-sm);
}

/* Folder Browser */
.folder-browser {
    flex: 2;
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

/* Browser Header */
.browser-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.browser-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.browser-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.browser-btn:hover {
    background: var(--border-highlight);
    color: var(--text-primary);
    border-color: var(--deck-a-color);
}

.browser-btn.small {
    padding: 2px 8px;
    font-size: 0.7rem;
}

/* Folder Tree */
.folder-tree {
    width: 200px;
    min-width: 150px;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    background: var(--bg-secondary);
}

.folder-placeholder,
.file-placeholder,
.playlist-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.8rem;
    text-align: center;
}

/* Folder Item */
.folder-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    user-select: none;
}

.folder-item:hover {
    background: var(--bg-tertiary);
}

.folder-item.selected {
    background: rgba(0, 212, 255, 0.15);
    color: var(--deck-a-color);
}

.folder-item.selected .folder-icon {
    color: var(--deck-a-color);
}

.folder-icon {
    font-size: 0.9rem;
    color: var(--text-muted);
    width: 18px;
    text-align: center;
}

.folder-name {
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.folder-item.nested {
    padding-left: calc(var(--spacing-sm) + 12px);
}

.folder-item.nested-2 {
    padding-left: calc(var(--spacing-sm) + 24px);
}

/* Folder Browser Layout */
.folder-browser {
    display: grid;
    grid-template-columns: 200px 1fr;
    grid-template-rows: auto 1fr;
}

.folder-browser .browser-header {
    grid-column: 1 / -1;
}

/* File List */
.file-list {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.file-list-header {
    display: flex;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.file-list-header .col-name {
    flex: 1;
}

.file-list-header .col-duration {
    width: 60px;
    text-align: right;
}

.file-list-content {
    flex: 1;
    overflow-y: auto;
}

/* File Item */
.file-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: grab;
    transition: background var(--transition-fast);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.file-item:hover {
    background: var(--bg-tertiary);
}

.file-item.dragging {
    opacity: 0.5;
    background: var(--deck-a-glow);
}

.file-item .file-icon {
    font-size: 0.85rem;
    color: var(--deck-a-color);
    margin-right: var(--spacing-xs);
    width: 16px;
}

.file-item .file-name {
    flex: 1;
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-item .file-duration {
    width: 60px;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: right;
}

/* Playlist Panel */
.playlist-panel {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.playlist-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.playlist-content {
    flex: 1;
    overflow-y: auto;
    position: relative;
}

.playlist-content.drag-over {
    background: rgba(0, 212, 255, 0.1);
    border: 2px dashed var(--deck-a-color);
}

/* Playlist Item */
.playlist-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: grab;
    transition: background var(--transition-fast);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.playlist-item:hover {
    background: var(--bg-tertiary);
}

.playlist-item.dragging {
    opacity: 0.5;
}

.playlist-item .playlist-number {
    width: 24px;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
}

.playlist-item .playlist-name {
    flex: 1;
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-item .playlist-duration {
    width: 50px;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: right;
}

.playlist-item .playlist-actions {
    display: flex;
    gap: 4px;
    margin-left: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.playlist-item:hover .playlist-actions {
    opacity: 1;
}

.playlist-item .load-deck-btn {
    padding: 2px 6px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.65rem;
    cursor: pointer;
}

.playlist-item .load-deck-btn:hover {
    border-color: var(--deck-a-color);
    color: var(--deck-a-color);
}

.playlist-item .load-deck-btn.deck-b:hover {
    border-color: var(--deck-b-color);
    color: var(--deck-b-color);
}

.playlist-item .remove-btn {
    padding: 2px 6px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.7rem;
    cursor: pointer;
}

.playlist-item .remove-btn:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

/* Double click to load indicator */
.playlist-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: transparent;
    transition: background var(--transition-fast);
}

.playlist-item.playing::before {
    background: var(--accent-green);
}

/* Drag and Drop visual feedback */
.file-item.drag-source,
.playlist-item.drag-source {
    background: rgba(0, 212, 255, 0.2);
}

.folder-item.drag-over,
.playlist-content.drag-over {
    background: rgba(0, 212, 255, 0.15);
}

/* Drop target indicator */
.playlist-item.drop-before {
    border-top: 2px solid var(--deck-a-color);
}

.playlist-item.drop-after {
    border-bottom: 2px solid var(--deck-a-color);
}

/* Scrollbar for browser */
.folder-tree::-webkit-scrollbar,
.file-list-content::-webkit-scrollbar,
.playlist-content::-webkit-scrollbar {
    width: 6px;
}

.folder-tree::-webkit-scrollbar-thumb,
.file-list-content::-webkit-scrollbar-thumb,
.playlist-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.folder-tree::-webkit-scrollbar-thumb:hover,
.file-list-content::-webkit-scrollbar-thumb:hover,
.playlist-content::-webkit-scrollbar-thumb:hover {
    background: var(--border-highlight);
}

/* Small toggle switch for playlist */
.toggle-switch.small {
    width: 36px;
    height: 20px;
}

.toggle-switch.small .toggle-slider {
    border-radius: 20px;
}

.toggle-switch.small .toggle-slider:before {
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
}

.toggle-switch.small input:checked + .toggle-slider:before {
    transform: translateX(16px);
}