/* Documents module — Windows Explorer-style folder tree + document panel.
   Prefix:  dft- = DocumentFolderTree
            dfb- = DocumentBreadcrumb
            doc- = document panel shared bits
   Follows Design Guidelines section 4: prefer MudBlazor palette vars,
   use color-mix for translucent accents, never literal hex. */

/* ---- Tree container -------------------------------------------------------- */

.dft-root {
    padding: var(--spacing-xs, 4px);
    min-height: 200px;
    user-select: none;
}

.dft-empty {
    padding: var(--spacing-lg, 16px);
    color: var(--mud-palette-text-disabled);
}

.dft-readonly {
    opacity: 0.85;
    pointer-events: auto;
}

.dft-readonly .dft-node:hover {
    background: transparent !important;
}

/* ---- Root row ("All documents") ------------------------------------------- */

.dft-root-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.15s ease;
    margin-bottom: 4px;
}

.dft-root-row:hover {
    background: var(--mud-palette-action-default-hover);
}

.dft-root-row.dft-row-selected {
    background: color-mix(in srgb, var(--mud-palette-primary) 18%, transparent);
    color: var(--mud-palette-primary-text);
    font-weight: 600;
}

.dft-icon {
    flex-shrink: 0;
}

.dft-icon-all {
    color: var(--mud-palette-primary);
}

/* ---- Tree nodes ----------------------------------------------------------- */

.dft-tree .mud-treeview-item-content {
    padding: 2px 4px;
    border-radius: 4px;
    transition: background-color 0.15s ease;
}

.dft-tree .mud-treeview-item-content:hover {
    background: var(--mud-palette-action-default-hover);
}

.dft-node {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
    padding: 2px 4px;
    border-radius: 4px;
}

.dft-node .dft-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.875rem;
}

.dft-node-selected {
    background: color-mix(in srgb, var(--mud-palette-primary) 18%, transparent);
    font-weight: 600;
}

/* Windows-like amber for tenant-predefined folders, info-blue for case-scoped. */
.dft-node-predefined .dft-icon {
    color: var(--mud-palette-warning);
}

.dft-node-case .dft-icon {
    color: var(--mud-palette-info);
}

.dft-node-synthetic .dft-icon {
    color: var(--mud-palette-secondary);
}

/* ---- Chips & counters ----------------------------------------------------- */

.dft-chip {
    display: inline-block;
    font-size: 0.65rem;
    line-height: 1;
    padding: 3px 6px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 600;
    flex-shrink: 0;
}

.dft-chip-predefined {
    background: color-mix(in srgb, var(--mud-palette-warning) 16%, transparent);
    color: var(--mud-palette-warning-darken);
}

.dft-chip-synthetic {
    background: color-mix(in srgb, var(--mud-palette-secondary) 16%, transparent);
    color: var(--mud-palette-secondary-darken);
}

.dft-count {
    margin-left: auto;
    font-size: 0.7rem;
    padding: 1px 8px;
    border-radius: 10px;
    background: var(--mud-palette-action-default-hover);
    color: var(--mud-palette-text-secondary);
    flex-shrink: 0;
    font-weight: 500;
}

.dft-node-selected .dft-count {
    background: color-mix(in srgb, var(--mud-palette-primary) 24%, transparent);
    color: var(--mud-palette-primary-text);
}

/* ---- Context menu --------------------------------------------------------- */

.dft-ctx-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1200;
    background: transparent;
}

.dft-ctx-menu {
    z-index: 1201;
    min-width: 200px;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.dft-ctx-menu .mud-list-item {
    padding: 6px 12px;
    font-size: 0.875rem;
}

.dft-ctx-menu .mud-list-item-icon {
    min-width: 28px;
}

/* ---- Breadcrumb ---------------------------------------------------------- */

.dfb-breadcrumb {
    padding: 6px 12px;
    border-radius: 6px;
    background: var(--mud-palette-background-grey);
    min-height: 36px;
}

.dfb-breadcrumb .dfb-home {
    padding: 4px;
}