/**
 * Section List Panel — left panel showing ordered list of page sections
 * with drag/drop reorder, inline actions, variant popover, and SVG panel.
 */

/* ── Container ── */
.pb-sl {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* ── Header ── */
.pb-sl-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--pb-space-4) var(--pb-space-5);
  border-bottom: 1px solid var(--pb-border);
  flex-shrink: 0;
}

.pb-sl-header span {
  font-size: var(--pb-font-base);
  font-weight: 600;
  color: var(--pb-text-bright);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pb-sl-add-btn {
  font-size: var(--pb-font-sm);
  padding: var(--pb-space-2) var(--pb-space-4);
}

/* ── Scrollable body ── */
.pb-sl-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

/* ── Section row ── */
.pb-sl-row {
  display: flex;
  align-items: center;
  gap: var(--pb-space-4);
  padding: var(--pb-space-4) var(--pb-space-4);
  border-bottom: 1px solid var(--pb-border);
  transition: background var(--pb-transition), opacity var(--pb-transition), transform var(--pb-transition);
  position: relative;
  cursor: pointer;
  user-select: none;
}

.pb-sl-row:hover {
  background: var(--pb-surface-hover);
}

.pb-sl-row.pb-sl-selected {
  border-left: 2px solid var(--pb-accent);
  padding-left: var(--pb-space-3);
  background: var(--pb-accent-muted);
}

.pb-sl-row.pb-sl-shared {
  color: var(--pb-text-dim);
  background: var(--pb-shared-bg);
  border-left: 2px solid var(--pb-border);
  padding-left: var(--pb-space-3);
}

.pb-sl-row.pb-sl-shared:hover {
  background: var(--pb-surface-hover);
}

/* ── Alternating row tint for scanability ── */
.pb-sl-row:nth-child(even of .pb-sl-row) {
  background: var(--pb-shared-bg);
}

.pb-sl-row:nth-child(even of .pb-sl-row):hover {
  background: var(--pb-surface-hover);
}

/* Selected/shared backgrounds must win over zebra tint */
.pb-sl-row.pb-sl-selected,
.pb-sl-row.pb-sl-selected:nth-child(even of .pb-sl-row) {
  background: var(--pb-accent-muted);
}

.pb-sl-row.pb-sl-shared,
.pb-sl-row.pb-sl-shared:nth-child(even of .pb-sl-row) {
  background: var(--pb-shared-bg);
}

/* ── Drag handle ── */
.pb-sl-grip {
  flex-shrink: 0;
  position: relative;
  width: 16px;
  height: 16px;
  cursor: grab;
  color: var(--pb-text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--pb-radius);
  transition: color var(--pb-transition), background var(--pb-transition);
}

/* 44×44 invisible hit area via pseudo-element — no row height inflation */
.pb-sl-grip::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  transform: translate(-50%, -50%);
}

.pb-sl-grip:hover {
  color: var(--pb-text-bright);
  background: var(--pb-bg-hover);
}

.pb-sl-grip:active {
  cursor: grabbing;
  color: var(--pb-accent);
}

/* Lock icon for shared sections — same size, no grab cursor */
.pb-sl-lock {
  cursor: default;
}
.pb-sl-lock::before {
  display: none;
}

.pb-sl-grip svg {
  width: 14px;
  height: 14px;
}

/* ── Thumbnail ── */
.pb-sl-thumb {
  width: 40px;
  height: 28px;
  border-radius: var(--pb-radius-sm);
  overflow: hidden;
  background: var(--pb-content-bg);
  flex-shrink: 0;
  border: 1px solid var(--pb-border);
}

.pb-sl-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── Thumbnail clickable for variant swap ── */
.pb-sl-row:not(.pb-sl-shared) .pb-sl-thumb {
  cursor: pointer;
  transition: border-color var(--pb-transition), box-shadow var(--pb-transition);
}

.pb-sl-row:not(.pb-sl-shared) .pb-sl-thumb:hover {
  border-color: var(--pb-accent-subtle);
  box-shadow: var(--pb-shadow-ring);
}

/* ── Label ── */
.pb-sl-label {
  flex: 1;
  font-size: var(--pb-font-base);
  color: var(--pb-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.pb-sl-label[contenteditable="true"] {
  border-bottom: 1px solid var(--pb-accent);
  color: var(--pb-text-bright);
  cursor: text;
  user-select: text;
}

/* ── Stitch ID (hidden at rest, revealed on hover/focus/selected) ── */
.pb-sl-stitch-id {
  flex-shrink: 0;
  font-size: var(--pb-font-xs);
  color: var(--pb-text-dim);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--pb-transition);
}

.pb-sl-row:hover .pb-sl-stitch-id,
.pb-sl-row:focus-within .pb-sl-stitch-id,
.pb-sl-row.pb-sl-selected .pb-sl-stitch-id {
  opacity: 1;
  pointer-events: auto;
}

/* ── Row actions ── */
.pb-sl-actions {
  display: flex;
  gap: var(--pb-space-1);
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--pb-transition);
}

.pb-sl-row:hover .pb-sl-actions,
.pb-sl-row.pb-sl-selected .pb-sl-actions {
  opacity: 1;
}

.pb-sl-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--pb-radius);
  background: transparent;
  color: var(--pb-text-dim);
  cursor: pointer;
  padding: 0;
  transition: background var(--pb-transition), color var(--pb-transition);
}

.pb-sl-btn svg {
  width: 14px;
  height: 14px;
}

.pb-sl-btn:hover {
  background: var(--pb-surface-hover);
  color: var(--pb-text-bright);
}

.pb-sl-btn.pb-sl-btn-danger {
  color: var(--pb-danger);
}

.pb-sl-btn.pb-sl-btn-danger:hover {
  background: var(--pb-danger-muted);
  color: var(--pb-danger);
}

.pb-sl-btn svg {
  width: 14px;
  height: 14px;
}

/* ── Insert marker ── */
.pb-sl-insert {
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  opacity: 0.25;
  transition: opacity var(--pb-transition);
}

.pb-sl-row:hover + .pb-sl-insert,
.pb-sl-insert:hover,
.pb-sl-insert + .pb-sl-row:hover ~ .pb-sl-insert:first-of-type {
  opacity: 1;
}

/* Always show on direct hover */
.pb-sl-insert:hover {
  opacity: 1;
}

.pb-sl-insert::before {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  height: 1px;
  background: var(--pb-border);
}

.pb-sl-insert-btn {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--pb-border);
  background: var(--pb-surface);
  color: var(--pb-text-dim);
  font-size: var(--pb-font-lg);
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--pb-z-base);
  padding: 12px;
  margin: -12px;
  transition: border-color var(--pb-transition), color var(--pb-transition), background var(--pb-transition);
}

.pb-sl-insert-btn:hover {
  border-color: var(--pb-accent);
  color: var(--pb-accent);
  background: var(--pb-bg);
}

.pb-sl-insert:hover::before,
.pb-sl-row:hover + .pb-sl-insert::before {
  background: var(--pb-accent);
}

/* ── Drag states ── */
.pb-sl-row.pb-sl-dragging {
  opacity: 0.4;
  transform: scale(0.98);
  transition: opacity var(--pb-transition-drag), transform var(--pb-transition-drag);
}

.pb-sl-row.pb-sl-drop-above::before,
.pb-sl-row.pb-sl-drop-below::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: var(--pb-drop-zone-height-active);
  background: var(--pb-drop-zone-color);
  border-radius: var(--pb-radius);
  box-shadow: 0 0 8px var(--pb-drop-zone-glow);
  animation: pb-drop-zone-pulse 1.2s ease-in-out infinite;
  pointer-events: none;
  z-index: var(--pb-z-raised);
}

.pb-sl-row.pb-sl-drop-above::before {
  top: -4px;
}

.pb-sl-row.pb-sl-drop-below::after {
  bottom: -4px;
}

@media (prefers-reduced-motion: reduce) {
  .pb-sl-row.pb-sl-drop-above::before,
  .pb-sl-row.pb-sl-drop-below::after {
    animation: none;
  }
}

/* ── Drag ghost (offscreen, captured by setDragImage) ── */
.pb-drag-ghost {
  display: flex;
  align-items: center;
  gap: var(--pb-space-4);
  padding: var(--pb-space-3) var(--pb-space-5);
  background: var(--pb-drag-ghost-bg);
  border: 1px solid var(--pb-drag-ghost-border);
  border-radius: var(--pb-radius);
  box-shadow: var(--pb-drag-ghost-shadow);
  color: var(--pb-text-bright);
  font-size: var(--pb-font-base);
  font-family: inherit;
  white-space: nowrap;
  opacity: var(--pb-drag-ghost-opacity);
  pointer-events: none;
  z-index: var(--pb-z-modal);
}

/* ── Variant popover ── */
.pb-sl-popover {
  position: absolute;
  left: 0;
  right: 0;
  z-index: var(--pb-z-popover);
  background: var(--pb-surface);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  box-shadow: var(--pb-shadow-dropdown);
  max-height: 300px;
  overflow-y: auto;
  padding: var(--pb-space-4);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-4px) scale(0.98);
  transform-origin: top center;
  transition:
    opacity var(--pb-transition),
    transform var(--pb-transition),
    visibility 0s linear 0.15s;
}

.pb-sl-popover.pb-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
  transition-delay: 0s;
}

.pb-sl-popover.pb-closing {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.pb-sl-popover-loading,
.pb-sl-popover-empty {
  color: var(--pb-text-dim);
  padding: var(--pb-space-4);
  text-align: center;
  font-size: var(--pb-font-base);
}

.pb-sl-popover-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--pb-space-2);
}

.pb-sl-popover-title {
  font-size: var(--pb-font-sm);
  color: var(--pb-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--pb-space-4);
}

.pb-sl-popover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: var(--pb-space-3);
}

.pb-sl-popover-card {
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--pb-transition);
}

.pb-sl-popover-card:hover,
.pb-sl-popover-card.pb-sl-popover-card--focused {
  border-color: var(--pb-accent);
}

.pb-sl-popover-card.pb-sl-popover-card--focused {
  outline: 2px solid var(--pb-accent);
  outline-offset: -2px;
}

.pb-sl-popover-card.pb-sl-popover-current {
  border-color: var(--pb-accent);
  opacity: 0.5;
  pointer-events: none;
}

.pb-sl-popover-card img {
  width: 100%;
  display: block;
  background: var(--pb-content-bg);
}

.pb-sl-popover-card-label {
  font-size: var(--pb-font-xs);
  color: var(--pb-text-dim);
  padding: var(--pb-space-1) var(--pb-space-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── SVG badge (hidden at rest, revealed on hover/focus/selected/media-open) ── */
.pb-sl-svg-badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--pb-space-1);
  cursor: pointer;
  color: var(--pb-text-dim);
  font-size: var(--pb-font-xs);
  padding: var(--pb-space-1) var(--pb-space-2);
  border-radius: var(--pb-radius);
  opacity: 0;
  pointer-events: none;
  transition: background var(--pb-transition), color var(--pb-transition), opacity var(--pb-transition);
}

.pb-sl-svg-badge:hover {
  background: var(--pb-surface-hover);
  color: var(--pb-text-bright);
}

.pb-sl-svg-badge svg {
  width: 14px;
  height: 14px;
}

/* ── SVG panel ── */
.pb-sl-svg-panel {
  background: var(--pb-bg);
  border-bottom: 1px solid var(--pb-border);
  padding: var(--pb-space-4);
}

.pb-sl-svg-panel-title {
  font-size: var(--pb-font-xs);
  color: var(--pb-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--pb-space-3);
}

.pb-sl-media-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pb-space-3);
  margin-bottom: var(--pb-space-3);
}

.pb-sl-media-panel-header .pb-sl-svg-panel-title {
  margin-bottom: 0;
}

.pb-sl-media-panel-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: var(--pb-radius-sm);
  background: transparent;
  color: var(--pb-text-dim);
  cursor: pointer;
  transition: background var(--pb-transition), color var(--pb-transition), transform var(--pb-transition);
}

.pb-sl-media-panel-close:hover {
  background: var(--pb-surface-hover);
  color: var(--pb-text-bright);
}

.pb-sl-media-panel-close:active {
  transform: scale(0.96);
}

.pb-sl-media-panel-close:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 1px var(--pb-accent);
}

.pb-sl-svg-item {
  display: flex;
  align-items: center;
  gap: var(--pb-space-4);
  padding: var(--pb-space-2);
  border-radius: var(--pb-radius);
  cursor: pointer;
  transition: background var(--pb-transition);
}

.pb-sl-svg-item:hover {
  background: var(--pb-surface-hover);
}

.pb-sl-svg-preview {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--pb-content-bg);
  border-radius: var(--pb-radius-sm);
  border: 1px solid var(--pb-border);
  overflow: hidden;
}

.pb-sl-svg-preview svg {
  width: 24px;
  height: 24px;
}

.pb-sl-svg-item-label {
  flex: 1;
  font-size: var(--pb-font-sm);
  color: var(--pb-text);
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pb-sl-svg-replace {
  font-size: var(--pb-font-xs);
  color: var(--pb-accent);
  cursor: pointer;
  padding: var(--pb-space-1) var(--pb-space-3);
  border-radius: var(--pb-radius);
  background: transparent;
  transition: background var(--pb-transition);
}

.pb-sl-svg-replace:hover {
  background: var(--pb-surface-hover);
}

/* ── Image badge (hidden at rest, revealed on hover/focus/selected/media-open) ── */
.pb-sl-img-badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--pb-space-1);
  cursor: pointer;
  color: var(--pb-text-dim);
  font-size: var(--pb-font-xs);
  padding: var(--pb-space-1) var(--pb-space-2);
  border-radius: var(--pb-radius);
  opacity: 0;
  pointer-events: none;
  transition: background var(--pb-transition), color var(--pb-transition), opacity var(--pb-transition);
}

.pb-sl-img-badge:hover {
  background: var(--pb-surface-hover);
  color: var(--pb-text-bright);
}

.pb-sl-img-badge svg {
  width: 14px;
  height: 14px;
}

/* ── Badge/stitch-id reveal on row interaction ── */
.pb-sl-row:hover .pb-sl-img-badge,
.pb-sl-row:hover .pb-sl-svg-badge,
.pb-sl-row:focus-within .pb-sl-img-badge,
.pb-sl-row:focus-within .pb-sl-svg-badge,
.pb-sl-row.pb-sl-selected .pb-sl-img-badge,
.pb-sl-row.pb-sl-selected .pb-sl-svg-badge,
.pb-sl-row.pb-sl-media-open .pb-sl-img-badge,
.pb-sl-row.pb-sl-media-open .pb-sl-svg-badge {
  opacity: 1;
  pointer-events: auto;
}

/* Touch devices: always show badges (no hover available) */
@media (pointer: coarse) {
  .pb-sl-stitch-id,
  .pb-sl-img-badge,
  .pb-sl-svg-badge {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ── Image panel ── */
.pb-sl-img-panel {
  background: var(--pb-bg);
  border-bottom: 1px solid var(--pb-border);
  padding: var(--pb-space-4);
}

.pb-sl-img-item {
  display: flex;
  align-items: center;
  gap: var(--pb-space-4);
  padding: var(--pb-space-2);
  border-radius: var(--pb-radius);
  cursor: pointer;
  transition: background var(--pb-transition);
}

.pb-sl-img-item:hover {
  background: var(--pb-surface-hover);
}

.pb-sl-img-preview {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--pb-surface-2);
  border-radius: var(--pb-radius-sm);
  border: 1px solid var(--pb-border);
  overflow: hidden;
}

.pb-sl-img-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.pb-sl-img-placeholder {
  font-size: var(--pb-font-xs);
  color: var(--pb-text-dim);
  text-transform: uppercase;
}


/* ── Tabs (sidebar merge) ── */
.pb-sl-tabs {
  display: flex;
  border-bottom: 1px solid var(--pb-border);
  flex-shrink: 0;
}

.pb-sl-tab {
  flex: 1;
  padding: var(--pb-space-4) var(--pb-space-4);
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--pb-text-dim);
  font-size: var(--pb-font-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  text-align: center;
  background: none;
  transition: color var(--pb-transition), background var(--pb-transition);
}

.pb-sl-tab:hover {
  color: var(--pb-text);
  background: var(--pb-surface-hover);
}

.pb-sl-tab-active {
  color: var(--pb-text-bright);
  border-bottom-color: var(--pb-accent);
  background: var(--pb-accent-tint);
}

.pb-sl-tab-badge {
  font-size: var(--pb-font-xs);
  background: var(--pb-surface-hover);
  padding: 1px var(--pb-space-3);
  border-radius: var(--pb-radius-lg);
  margin-left: var(--pb-space-2);
}

.pb-sl-tab-content {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.pb-sl-tab-content.pb-sl-tab-content-enter {
  animation: pb-fade-slide-in var(--pb-transition) both;
}

.pb-sl-tab-content.pb-sl-tab-content-exit {
  animation: pb-fade-slide-out var(--pb-transition) both;
}

.pb-sl-tab-hidden {
  display: none;
}

/* ── Header actions (SEO + Add Section) ── */
.pb-sl-header-actions {
  display: flex;
  gap: var(--pb-space-2);
  align-items: center;
}

.pb-sl-inline-loading {
  display: inline-flex;
  align-items: center;
  gap: var(--pb-space-2);
  color: var(--pb-text-dim);
  font-size: var(--pb-font-xs);
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity var(--pb-transition), transform var(--pb-transition);
}

.pb-sl-inline-loading[hidden] {
  display: none;
}

.pb-sl-inline-loading-show {
  opacity: 1;
  transform: translateY(0);
}

.pb-sl-inline-loading-spinner {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--pb-border);
  border-top-color: var(--pb-accent);
  animation: pb-spin 0.8s linear infinite;
}

.pb-sl-seo-btn {
  font-size: var(--pb-font-xs);
  padding: var(--pb-space-1) var(--pb-space-3);
}