/* ========================================
   Sirona File Explorer Styles
   Uses button.css for toolbar buttons
   ======================================== */

.sirona-file-explorer {
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    min-height: 400px;
}

/* Toolbar - uses btn, btn-outline from button.css */
.file-explorer-toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color, rgba(0, 0, 0, 0.08));
    background: var(--bg-primary);
}

.file-explorer-view-toggle {
    display: flex;
    gap: 0.25rem;
    margin-left: auto;
}

.file-explorer-view-toggle .btn.active {
    background: var(--blueteq-blue-light, rgba(24, 111, 181, 0.15));
    color: var(--blueteq-blue, #186fb5);
}

/* Main Content (3-pane layout) */
.file-explorer-body {
    display: flex;
    flex: 1;
    min-height: 350px;
}

/* Left pane - Folder tree */
.file-explorer-tree-pane {
    flex: 0 0 240px;
    min-width: 200px;
    border-right: 1px solid var(--border-color, rgba(0, 0, 0, 0.08));
    padding: 1rem;
    overflow-y: auto;
    background: var(--bg-primary);
}

.file-explorer-folder-tree {
    min-height: 100px;
}

.file-explorer-tree-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem;
    color: var(--text-secondary);
}

.file-explorer-tree-loading i {
    color: var(--blueteq-blue);
}

.file-explorer-tree-nodes,
.file-explorer-tree-children {
    list-style: none;
    margin: 0;
    padding: 0;
}

.file-explorer-tree-node {
    margin-bottom: 0.25rem;
}

.file-explorer-tree-node-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.5rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background 0.15s;
}

.file-explorer-tree-node-content:hover {
    background: var(--blueteq-blue-light, rgba(24, 111, 181, 0.1));
}

.file-explorer-tree-node.selected > .file-explorer-tree-node-content {
    background: var(--blueteq-blue-light, rgba(24, 111, 181, 0.15));
    color: var(--blueteq-blue);
}

.file-explorer-tree-node-toggle {
    width: 16px;
    font-size: 0.75rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.file-explorer-tree-node-spacer {
    width: 16px;
    display: inline-block;
}

.file-explorer-tree-node-icon {
    color: var(--blueteq-blue);
    font-size: 1rem;
}

.file-explorer-tree-node-text {
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-explorer-tree-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    color: var(--text-tertiary);
    text-align: center;
}

.file-explorer-tree-empty i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    opacity: 0.5;
}

/* Center pane - Content grid */
.file-explorer-content-pane {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    user-select: none;
}

.file-explorer-content-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1rem;
    padding: 0.5rem 0;
    height: 100% !important;
    align-items: start;
}

.file-explorer-content-grid.file-explorer-content-grid--list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.file-explorer-list-header {
    display: grid;
    grid-template-columns: 28px 1fr 90px 90px 140px;
    align-items: center;
    width: 100%;
}

.file-explorer-list-header-spacer,
.file-explorer-list-header-name,
.file-explorer-list-header-meta {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color, rgba(0, 0, 0, 0.08));
}

.file-explorer-list-header-name {
    min-width: 0;
}

/* List view: each row is a grid with fixed column widths */
.file-explorer-content-grid--list .file-explorer-content-item {
    display: grid;
    grid-template-columns: 28px 1fr 90px 90px 140px;
    align-items: center;
    gap: 0;
    padding: 0;
    border-radius: 0.25rem;
}

.file-explorer-content-grid--list .file-explorer-content-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0;
    color: var(--blueteq-blue);
}

.file-explorer-content-grid--list .file-explorer-content-icon i {
    font-size: 1rem;
}

.file-explorer-content-grid--list .file-explorer-content-name {
    padding: 0.5rem 0.75rem;
    min-width: 0;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.8125rem;
}

.file-explorer-content-grid--list .file-explorer-content-meta {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.file-explorer-content-grid--list .file-explorer-content-item.selected {
    background: var(--blueteq-blue-light, rgba(24, 111, 181, 0.15));
    border: none;
}

.file-explorer-marquee {
    position: absolute;
    border: 2px dashed var(--blueteq-blue, #186fb5);
    background: rgba(24, 111, 181, 0.1);
    pointer-events: none;
    z-index: 10;
}

.file-explorer-content-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background 0.2s;
    width: 100%;
}

.file-explorer-content-item:hover {
    background: var(--blueteq-blue-light, rgba(24, 111, 181, 0.1));
}

.file-explorer-content-item.selected {
    background: var(--blueteq-blue-light, rgba(24, 111, 181, 0.15));
    border: 1px solid var(--blueteq-blue);
}

.file-explorer-content-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    color: var(--blueteq-blue);
}

.file-explorer-content-icon i {
    font-size: 2rem;
}

.file-explorer-content-name {
    font-size: 0.8125rem;
    text-align: center;
    word-break: break-word;
    color: var(--text-primary);
}

/* Right pane - Details (always visible) */
.file-explorer-details-pane {
    flex: 0 0 220px;
    min-width: 180px;
    border-left: 1px solid var(--border-color, rgba(0, 0, 0, 0.08));
    padding: 1rem;
    overflow-y: auto;
    background: var(--bg-primary);
}

.file-explorer-details-panel h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
    color: var(--text-primary);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color, rgba(0, 0, 0, 0.08));
}

.file-explorer-no-selection {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    color: var(--text-tertiary);
    text-align: center;
}

.file-explorer-no-selection i {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.file-explorer-details-content {
    font-size: 0.8125rem;
}

.file-explorer-details-row {
    margin-bottom: 0.5rem;
}

.file-explorer-details-icon {
    margin-right: 0.5rem;
    color: var(--blueteq-blue);
}

/* Loading & Empty States */
.file-explorer-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.file-explorer-loading i {
    font-size: 2rem;
    color: var(--blueteq-blue);
    margin-bottom: 0.5rem;
}

.file-explorer-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-tertiary);
    text-align: center;
}

.file-explorer-empty-state i {
    font-size: 3rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

/* Context menu */
.file-explorer-context-menu {
    position: fixed;
    z-index: 10000;
    min-width: 160px;
    padding: 0.25rem 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
    border-radius: 0.375rem;
    box-shadow: var(--shadow-md);
}

.file-explorer-context-menu-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.15s;
}

.file-explorer-context-menu-item:hover {
    background: var(--blueteq-blue-light, rgba(24, 111, 181, 0.1));
}

.file-explorer-context-menu-item i {
    width: 1rem;
    color: var(--text-secondary);
}

/* Dark Mode */
[data-theme="dark"] .sirona-file-explorer {
    background: var(--bg-secondary);
}

[data-theme="dark"] .file-explorer-tree-pane,
[data-theme="dark"] .file-explorer-details-pane {
    border-color: rgba(255, 255, 255, 0.1);
}