/* ============================================================
   Phase 12: Category Customization Styles
   Dark Sigma Theme - Category Management UI
   ============================================================ */

/* Customizer Tabs */
.category-customizer-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
  padding: 0 1rem;
  overflow-x: auto;
}

.tab-btn {
  padding: 1rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Category Customizer Content */
.category-customizer-content {
  padding: 1.5rem;
  max-height: 60vh;
  overflow-y: auto;
}

/* Category List Customizer */
.category-list-customizer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.category-customizer-toolbar {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

/* Add Category Form */
.add-category-form {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

/* Emoji Input Row */
.emoji-input-row {
  display: flex;
  gap: 0.5rem;
}

.emoji-input {
  flex: 1;
  font-size: 1.2rem;
}

/* Color Picker Row */
.color-picker-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  position: relative;
}

.color-display {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  border: 2px solid var(--border);
  cursor: pointer;
  transition: transform var(--transition);
  flex-shrink: 0;
}

.color-display:hover {
  transform: scale(1.05);
}

.color-input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* Color Picker Grid */
.color-picker-grid {
  position: absolute;
  top: 60px;
  left: 0;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0.75rem;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.color-preset {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  border: 2px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
}

.color-preset:hover {
  border-color: var(--accent);
  transform: scale(1.1);
}

/* Drag-to-Reorder Categories */
.categories-drag-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.category-item-customizer {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 1rem;
  cursor: grab;
  transition: all var(--transition);
}

.category-item-customizer:active {
  cursor: grabbing;
  background: var(--bg-3);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.category-item-customizer.hidden {
  opacity: 0.5;
  background: rgba(0, 0, 0, 0.2);
}

.drag-handle {
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: grab;
  flex-shrink: 0;
  user-select: none;
}

.category-display {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.category-info {
  flex: 1;
  min-width: 0;
}

.category-name {
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.category-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.category-aliases {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.category-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn-icon-small {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.btn-icon-small:hover {
  background: var(--bg-1);
  color: var(--text);
  border-color: var(--border-focus);
}

.btn-icon-small.danger {
  color: var(--err);
}

.btn-icon-small.danger:hover {
  background: rgba(248, 113, 113, 0.1);
  border-color: var(--err);
}

/* Presets Grid */
.presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 1rem 0;
}

.preset-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.preset-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.preset-card .text-muted {
  font-size: 0.8rem;
  margin: 0;
}

.preset-preview {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 180px;
  overflow-y: auto;
}

.preset-cat {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  background: var(--bg-3);
  border-radius: var(--r-sm);
  font-size: 0.85rem;
}

.preset-cat span:first-child {
  font-size: 1.2rem;
}

/* Icon Library Grid */
.icon-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 1rem;
  padding: 1rem 0;
}

.icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: all var(--transition);
}

.icon-item:hover {
  background: var(--bg-3);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.icon-emoji {
  font-size: 2rem;
}

.icon-name {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
  text-align: center;
}

.icon-category {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Category Settings */
.category-settings {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem 0;
}

.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  gap: 1.5rem;
}

.setting-label {
  flex: 1;
}

.setting-label h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.25rem 0;
}

.setting-label .text-muted {
  font-size: 0.8rem;
  margin: 0;
}

/* Toggle Switch */
.toggle-switch {
  display: flex;
  align-items: center;
  cursor: pointer;
  flex-shrink: 0;
}

.toggle-switch input {
  display: none;
}

.toggle-slider {
  width: 44px;
  height: 24px;
  background: var(--border);
  border-radius: 12px;
  position: relative;
  transition: background var(--transition);
  display: inline-block;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--text);
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: left var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--ok);
}

.toggle-switch input:checked + .toggle-slider::after {
  left: 22px;
}

/* Action Items */
.action-item {
  flex-direction: column;
  align-items: flex-start;
}

.action-item button {
  width: 100%;
}

.setting-divider {
  height: 1px;
  background: var(--border);
  margin: 0.5rem 0;
}

/* Form Footer */
.form-footer {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.btn-full {
  width: 100%;
}

/* Merge Categories */
.merge-preview {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 1rem;
  margin-top: 1rem;
}

.merge-preview p {
  margin: 0 0 0.75rem 0;
}

.merge-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.merge-checkbox label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text);
}

.merge-checkbox input {
  cursor: pointer;
}

/* Edit Category Modal */
.edit-category-modal .form-section {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .category-customizer-tabs {
    padding: 0;
  }

  .tab-btn {
    padding: 0.8rem 1rem;
    font-size: 0.75rem;
  }

  .presets-grid {
    grid-template-columns: 1fr;
  }

  .icon-library-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }

  .icon-item {
    padding: 0.75rem;
  }

  .icon-emoji {
    font-size: 1.5rem;
  }

  .category-item-customizer {
    padding: 0.75rem;
    gap: 0.75rem;
  }

  .category-display {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .setting-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .toggle-switch {
    align-self: flex-start;
  }

  .category-customizer-toolbar {
    flex-direction: column;
  }

  .category-customizer-toolbar input {
    width: 100%;
  }
}