/**
 * /assets/css/admin-icons.css
 *
 * Purpose:  Admin SVG icon management (DB-backed) – two-panel layout,
 *           set tree sidebar, drag-and-drop, trash zone, icon grid,
 *           multi-select, bulk action bar
 * Deps:     app.css (variables)
 * Load:     index.php
 * Version:  7.1.0
 */

/* ═══════════════════════════════════════════
   Two-Panel Layout
   ═══════════════════════════════════════════ */
.admin-icon-layout {
  display: flex;
  gap: 1rem;
  min-height: 400px;
}
.admin-icon-sidebar {
  flex-shrink: 0;
  width: 220px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.admin-icon-main {
  flex: 1;
  min-width: 0;
}

@media (max-width: 768px) {
  .admin-icon-layout {
    flex-direction: column;
  }
  .admin-icon-sidebar {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .admin-set-tree {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
  }
  .admin-set-tree-item {
    padding-left: 4px !important;
  }
  .admin-set-tree-children {
    display: none;
  }
}

/* ═══════════════════════════════════════════
   Set Tree (Sidebar)
   ═══════════════════════════════════════════ */
.admin-set-tree {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.admin-set-tree::-webkit-scrollbar {
  width: 4px;
}
.admin-set-tree::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.12);
  border-radius: 2px;
}

.admin-set-tree-item {
  margin-bottom: 1px;
  border-radius: 0.375rem;
  transition: background 0.15s;
  cursor: pointer;
}
.admin-set-tree-item:hover {
  background: rgba(255,255,255,0.04);
}
.admin-set-tree-item.--active {
  background: rgba(93,214,201,0.08);
}
.admin-set-tree-item.--active > .admin-set-tree-drop {
  border-left: 2px solid rgba(93,214,201,0.6);
}
.admin-set-tree-item.--collapsed > .admin-set-tree-children {
  display: none;
}
.admin-set-tree-item.--collapsed .admin-set-toggle {
  transform: rotate(-90deg);
}
.admin-set-tree-item.--dragging {
  opacity: 0.4;
}

.admin-set-tree-drop {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.5rem;
  border-left: 2px solid transparent;
  border-radius: 0.375rem;
  transition: background 0.15s, border-color 0.15s;
}
.admin-set-tree-drop.--drop-ready {
  border-color: rgba(93,214,201,0.2);
}
.admin-set-tree-drop.--drop-hover {
  background: rgba(93,214,201,0.15);
  border-color: rgba(93,214,201,0.6);
  box-shadow: inset 0 0 8px rgba(93,214,201,0.1);
}

.admin-set-tree-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}
.admin-set-tree-svg {
  display: flex;
  width: 18px;
  height: 18px;
}
.admin-set-tree-svg svg {
  width: 100%;
  height: 100%;
}
.admin-set-tree-name {
  flex: 1;
  font-size: 0.75rem;
  font-weight: 500;
  color: #e0e0e0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-set-tree-count {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.4);
  flex-shrink: 0;
}
.admin-set-tree-edit {
  display: none;
  padding: 1px 4px;
  font-size: 0.55rem;
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 3px;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  flex-shrink: 0;
}
.admin-set-tree-item:hover .admin-set-tree-edit {
  display: block;
}
.admin-set-tree-edit:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.3);
}
.admin-set-toggle {
  transition: transform 0.15s;
}

/* ═══════════════════════════════════════════
   Trash Zone (Sidebar bottom)
   ═══════════════════════════════════════════ */
.admin-icon-trash-zone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255,107,107,0.04);
  border: 1px dashed rgba(255,107,107,0.2);
  border-radius: 0.5rem;
  color: rgba(255,107,107,0.6);
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.admin-icon-trash-zone:hover {
  background: rgba(255,107,107,0.08);
  border-color: rgba(255,107,107,0.4);
  color: rgba(255,107,107,0.8);
}
.admin-icon-trash-zone.--drop-ready {
  border-color: rgba(255,107,107,0.4);
  background: rgba(255,107,107,0.06);
}
.admin-icon-trash-zone.--drop-hover {
  background: rgba(255,107,107,0.2);
  border-color: rgba(255,107,107,0.7);
  color: #ff6b6b;
  box-shadow: 0 0 12px rgba(255,107,107,0.15);
}

/* Trash list (expandable) */
.admin-icon-trash-list {
  padding: 0.5rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 0.375rem;
  max-height: 200px;
  overflow-y: auto;
}
.admin-trash-svg {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  opacity: 0.5;
  color: var(--accent, #5dd6c9);
}
.admin-trash-svg svg {
  width: 100%;
  height: 100%;
}

/* ═══════════════════════════════════════════
   Icon Grid
   ═══════════════════════════════════════════ */
.admin-icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 0.5rem;
}

/* ── Icon Card (vertical layout, large preview) ── */
.admin-icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.375rem 0.4rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-bottom: 2px solid rgba(93,214,201,0.3);
  border-radius: 0.5rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: grab;
  transition: border-color 0.2s, box-shadow 0.2s, opacity 0.25s;
}
.admin-icon-card:hover {
  border-color: rgba(93,214,201,0.5);
  box-shadow: 0 0 12px rgba(93,214,201,0.1);
}
.admin-icon-card.filtered-out {
  display: none;
}
.admin-icon-card.--paged-hidden {
  display: none;
}
.admin-icon-card.--dragging {
  opacity: 0.3;
  cursor: grabbing;
}

/* ── SVG Preview (large, centered) ── */
.admin-icon-preview {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent, #5dd6c9);
  overflow: hidden;
}
.admin-icon-preview svg {
  width: 100%;
  height: 100%;
}

/* ── Icon Info (centered below preview) ── */
.admin-icon-info {
  width: 100%;
  min-width: 0;
  overflow: hidden;
  text-align: center;
}
.admin-icon-name {
  font-size: 0.72rem;
  font-weight: 500;
  color: #e0e0e0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-icon-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.2rem;
  margin-top: 0.1rem;
}
.admin-icon-meta code {
  display: none;
}
.admin-icon-meta .badge {
  font-size: 0.55rem;
  padding: 0.1rem 0.3rem;
}

/* ── Load More ── */
.admin-icon-load-more {
  grid-column: 1 / -1;
  text-align: center;
  padding: 0.75rem;
}
.admin-icon-load-more button {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(93,214,201,0.25);
  border-radius: 0.5rem;
  padding: 0.4rem 1.2rem;
  color: var(--accent, #5dd6c9);
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.admin-icon-load-more button:hover {
  background: rgba(93,214,201,0.1);
  border-color: rgba(93,214,201,0.45);
}

/* ═══════════════════════════════════════════
   Filter Bar
   ═══════════════════════════════════════════ */
.admin-icon-filterbar {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Search Input */
.admin-icon-search-wrap {
  position: relative;
  flex: 1;
  max-width: 280px;
}
.admin-icon-search-wrap > i {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.7rem;
  color: rgba(255,255,255,0.3);
  pointer-events: none;
}
.admin-icon-search-wrap > input {
  padding-left: 28px;
  font-size: 0.8rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text, #e6edf3);
  border-radius: 0.375rem;
}
.admin-icon-search-wrap > input::placeholder {
  color: rgba(255,255,255,0.25);
}
.admin-icon-search-wrap > input:focus {
  background: rgba(255,255,255,0.07);
  border-color: rgba(93,214,201,0.4);
  box-shadow: 0 0 0 2px rgba(93,214,201,0.1);
}

/* ═══════════════════════════════════════════
   Icon Modal Preview
   ═══════════════════════════════════════════ */
.admin-icon-modal-preview {
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 0.75rem;
  color: var(--accent, #5dd6c9);
  overflow: hidden;
  padding: 12px;
}
.admin-icon-modal-preview svg {
  width: 100%;
  height: 100%;
}

/* ═══════════════════════════════════════════
   Color Presets (Set Modal)
   ═══════════════════════════════════════════ */
.admin-color-preset {
  width: 22px;
  height: 22px;
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
  padding: 0;
}
.admin-color-preset:hover {
  border-color: rgba(255,255,255,0.5);
  transform: scale(1.15);
}

/* ═══════════════════════════════════════════
   Multi-Select (Icon Cards)
   ═══════════════════════════════════════════ */
.admin-icon-card.--selected {
  background: rgba(93,214,201,0.1);
  border-color: rgba(93,214,201,0.5);
  border-left-color: rgba(93,214,201,0.8);
  box-shadow: 0 0 10px rgba(93,214,201,0.12), inset 0 0 0 1px rgba(93,214,201,0.08);
}
.admin-icon-card.--selected:hover {
  border-color: rgba(93,214,201,0.7);
  box-shadow: 0 0 14px rgba(93,214,201,0.18);
}

/* ═══════════════════════════════════════════
   Bulk Action Bar
   ═══════════════════════════════════════════ */
.admin-icon-bulk-bar {
  position: sticky;
  bottom: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  margin-top: 0.75rem;
  background: rgba(20,20,30,0.85);
  border: 1px solid rgba(93,214,201,0.25);
  border-radius: 0.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 -4px 16px rgba(0,0,0,0.25);
}
.admin-icon-bulk-bar__info {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.7);
  white-space: nowrap;
}
.admin-icon-bulk-bar__count {
  font-weight: 600;
  color: var(--accent, #5dd6c9);
  font-size: 0.85rem;
}
.admin-icon-bulk-bar__actions {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  flex-wrap: wrap;
}
.admin-icon-bulk-bar__actions select {
  font-size: 0.75rem;
  padding: 0.2rem 0.4rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 0.375rem;
  color: var(--text, #e6edf3);
  max-width: 160px;
}
.admin-icon-bulk-bar__actions select:focus {
  border-color: rgba(93,214,201,0.4);
  box-shadow: 0 0 0 2px rgba(93,214,201,0.1);
  outline: none;
}
.admin-icon-bulk-bar__actions button {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 0.375rem;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}
.admin-icon-bulk-bar__actions button:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.3);
  color: #fff;
}
.admin-icon-bulk-bar__actions button.--danger {
  color: rgba(255,107,107,0.8);
  border-color: rgba(255,107,107,0.25);
}
.admin-icon-bulk-bar__actions button.--danger:hover {
  background: rgba(255,107,107,0.12);
  border-color: rgba(255,107,107,0.5);
  color: #ff6b6b;
}

@media (max-width: 768px) {
  .admin-icon-bulk-bar {
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.5rem;
  }
  .admin-icon-bulk-bar__actions {
    width: 100%;
    justify-content: flex-end;
  }
}

/* ═══════════════════════════════════════════
   Reduced motion
   ═══════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  .admin-icon-card,
  .admin-set-tree-item,
  .admin-set-tree-drop,
  .admin-icon-trash-zone,
  .admin-color-preset,
  .admin-icon-bulk-bar__actions button {
    transition: none;
  }
  .admin-color-preset:hover {
    transform: none;
  }
}