/* MwFilePicker — 3-column file browser/picker component */

/* ─── Layout ─── */
.mw-fp {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.mw-fp-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mw-fp-header-title {
    font-size: 1rem;
    font-weight: 600;
}

.mw-fp-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--mud-palette-text-secondary);
    margin-left: 0.5rem;
}

.mw-fp-breadcrumb-link {
    color: var(--mud-palette-text-secondary);
    cursor: pointer;
}

.mw-fp-breadcrumb-link:hover {
    color: var(--mud-palette-primary);
}

.mw-fp-breadcrumb-sep {
    margin: 0 0.125rem;
    color: var(--mud-palette-text-disabled);
}

.mw-fp-body {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* ─── Folder tree (left) ─── */
.mw-fp-tree {
    width: 200px;
    border-right: 1px solid var(--mud-palette-lines-default);
    overflow-y: auto;
    padding: 0.5rem 0;
    flex-shrink: 0;
}

.mw-fp-tree-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.3125rem 0.75rem;
    font-size: 0.75rem;
    color: var(--mud-palette-text-secondary);
    cursor: pointer;
    transition: background 0.1s, color 0.1s;
    border-left: 2px solid transparent;
    user-select: none;
}

.mw-fp-tree-item:hover {
    background: rgba(126, 87, 194, 0.06);
    color: var(--mud-palette-text-primary);
}

.mw-fp-tree-item.active {
    background: rgba(126, 87, 194, 0.12);
    color: var(--mud-palette-primary);
    border-left-color: var(--mud-palette-primary);
}

.mw-fp-tree-indent-1 { padding-left: 1.5rem; }
.mw-fp-tree-indent-2 { padding-left: 2.25rem; }
.mw-fp-tree-indent-3 { padding-left: 3rem; }
.mw-fp-tree-indent-4 { padding-left: 3.75rem; }

.mw-fp-tree-expand {
    width: 16px;
    height: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ─── Files area (center) ─── */
.mw-fp-files {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.mw-fp-toolbar {
    padding: 0.625rem 1rem;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mw-fp-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 1rem;
}

/* ─── File grid ─── */
.mw-fp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.625rem;
}

/* Folder card in grid */
.mw-fp-folder {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--mud-palette-surface);
    border: 1px solid var(--mud-palette-lines-default);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
    font-size: 0.75rem;
    color: var(--mud-palette-text-secondary);
}

.mw-fp-folder:hover {
    background: var(--mud-palette-dark);
    border-color: var(--mud-palette-lines-inputs);
}

.mw-fp-folders-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

/* File card */
.mw-fp-card {
    background: var(--mud-palette-surface);
    border: 2px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
}

.mw-fp-card:hover {
    border-color: var(--mud-palette-lines-inputs);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    transform: translateY(-1px);
}

.mw-fp-card.selected {
    border-color: var(--mud-palette-primary);
    box-shadow: 0 0 0 1px var(--mud-palette-primary), 0 0 20px rgba(126, 87, 194, 0.25);
}

.mw-fp-card-thumb {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--mud-palette-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.mw-fp-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mw-fp-card-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 0.5625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #fff;
}

.mw-fp-card-check {
    position: absolute;
    top: 6px;
    left: 6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--mud-palette-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.7);
    transition: all 0.15s;
}

.mw-fp-card.selected .mw-fp-card-check {
    opacity: 1;
    transform: scale(1);
}

.mw-fp-card-info {
    padding: 0.375rem 0.5rem;
}

.mw-fp-card-name {
    font-size: 0.6875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mw-fp-card-meta {
    font-size: 0.5625rem;
    color: var(--mud-palette-text-secondary);
    margin-top: 0.0625rem;
}

/* Green dot: has AttachmentInfo */
.mw-fp-card-att {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--mud-palette-success);
    border: 1.5px solid var(--mud-palette-surface);
}

/* ─── List view ─── */
.mw-fp-list-row {
    display: grid;
    grid-template-columns: 32px 1fr 72px 64px 100px 20px;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4375rem 0.5rem;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    transition: background 0.1s;
    cursor: pointer;
    font-size: 0.75rem;
}

.mw-fp-list-row:hover {
    background: rgba(126, 87, 194, 0.06);
}

.mw-fp-list-row.selected {
    background: rgba(126, 87, 194, 0.12);
}

.mw-fp-list-row.header {
    cursor: default;
    font-weight: 600;
    color: var(--mud-palette-text-disabled);
    font-size: 0.6875rem;
}

.mw-fp-list-row.header:hover {
    background: none;
}

.mw-fp-list-icon {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mw-fp-att-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    justify-self: center;
}

.mw-fp-att-dot.linked {
    background: var(--mud-palette-success);
}

.mw-fp-att-dot.unlinked {
    background: var(--mud-palette-text-disabled);
}

/* ─── AttachmentInfo panel (right) ─── */
.mw-fp-panel {
    width: 280px;
    border-left: 1px solid var(--mud-palette-lines-default);
    display: flex;
    flex-direction: column;
    transition: width 0.25s ease;
    flex-shrink: 0;
    overflow: hidden;
}

.mw-fp-panel.collapsed {
    width: 36px;
}

.mw-fp-panel-header {
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--mud-palette-lines-default);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--mud-palette-text-disabled);
    white-space: nowrap;
}

.mw-fp-panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

.mw-fp-panel.collapsed .mw-fp-panel-body {
    display: none;
}

.mw-fp-panel.collapsed .mw-fp-panel-label {
    display: none;
}

/* Panel field */
.mw-fp-field {
    margin-bottom: 0.75rem;
}

.mw-fp-field-label {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--mud-palette-text-disabled);
    margin-bottom: 0.1875rem;
}

.mw-fp-field-value {
    font-size: 0.75rem;
    color: var(--mud-palette-text-primary);
    word-break: break-all;
}

.mw-fp-field-mono {
    font-family: monospace;
    font-size: 0.6875rem;
}

.mw-fp-preview {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--mud-palette-dark);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.mw-fp-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.mw-fp-ref-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.5rem;
    background: var(--mud-palette-surface);
    border-radius: 4px;
    font-size: 0.6875rem;
    color: var(--mud-palette-text-secondary);
    margin-bottom: 0.375rem;
}

.mw-fp-type-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    border-radius: 3px;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    color: #fff;
}

/* ─── Empty state ─── */
.mw-fp-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    text-align: center;
    gap: 0.5rem;
    height: 100%;
}

.mw-fp-empty-text {
    font-size: 0.8125rem;
    color: var(--mud-palette-text-disabled);
}

.mw-fp-empty-hint {
    font-size: 0.6875rem;
    color: var(--mud-palette-text-disabled);
}

/* ─── Footer ─── */
.mw-fp-footer {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--mud-palette-lines-default);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mw-fp-footer-info {
    flex: 1;
    font-size: 0.6875rem;
    color: var(--mud-palette-text-disabled);
}