.explore-panel {
  background: transparent;
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  height: 100vh;
}

.explore-panel h3 {
  margin: 0 0 16px 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  gap: 8px;
}

.explore-panel h3::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 14px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 2px;
}

.model-selector {
  margin-bottom: 16px;
  flex-shrink: 0;
}

.column-selector {
  margin-bottom: 0;
  flex-shrink: 0;
}

.model-selector label,
.column-selector label {
  display: block;
  margin-bottom: 6px;
  color: var(--slate-600);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.search-bar-container {
  position: relative;
  margin-bottom: 12px;
  flex-shrink: 0;
}

#modelSearchInput {
  width: 100%;
  padding: 10px 36px 10px 12px;
  box-sizing: border-box;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  font-size: 13px;
  font-family: var(--font-sans);
  background: var(--slate-50);
  color: var(--slate-800);
  transition: all 0.2s ease;
}

#modelSearchInput::placeholder {
  color: var(--slate-400);
}

#modelSearchInput:hover {
  border-color: var(--slate-300);
  background: #fff;
}

#modelSearchInput:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.12);
}

.search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--slate-400);
  pointer-events: none;
  transition: color 0.15s ease;
}

#modelSearchInput:focus + .search-icon {
  color: var(--primary);
}

.search-clear-btn {
  position: absolute;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border: none;
  background: var(--slate-300);
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.15s ease;
}

.search-clear-btn:hover {
  background: var(--slate-400);
}

.search-clear-btn svg {
  width: 10px;
  height: 10px;
  color: white;
}

.search-bar-container.has-value .search-clear-btn {
  display: flex;
}

#model-tree-container {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px 0;
  margin-bottom: 16px;
  background: transparent;
}

.model-tree {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.model-tree ul.nested {
  padding-left: 0;
  margin-left: 12px;
  display: none;
  border-left: 2px solid var(--slate-200);
  margin-top: 2px;
  padding-top: 2px;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.25s ease-out, opacity 0.2s ease;
    opacity: 0;
  }

.model-tree ul.nested.active {
  display: block;
  max-height: 2000px;
    opacity: 1;
}

.tree-node {
  position: relative;
}

.node-content {
  display: flex;
  align-items: center;
  padding: 7px 10px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s ease;
  margin: 2px 0;
  background: transparent;
  border: 1px solid transparent;
  gap: 8px;
}

.node-content:hover {
  background: var(--slate-100);
  border-color: var(--slate-200);
  transform: translateX(2px);
}

.icon-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  transition: transform 0.15s ease;
}

.node-content:hover .icon-container {
  transform: scale(1.1);
}

.tree-icon {
  width: 16px;
  height: 16px;
  stroke-width: 2;
}

.folder-icon { color: #3b82f6; }
.folder-icon.open { color: #2563eb; }
.model-icon { color: #0891b2; }
.source-icon { color: #059669; }
.seed-icon { color: #16a34a; }
.exposure-icon { color: #9333ea; }
.snapshot-icon { color: #d97706; }
.default-icon { color: #64748b; }

.node-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--slate-700);
  flex-grow: 1;
  font-family: var(--font-mono);
  line-height: 1.3;
}

.node-label .highlight {
  background: linear-gradient(120deg, #fef08a 0%, #fde047 100%);
  color: var(--slate-900);
  padding: 0 2px;
  border-radius: 2px;
  font-weight: 600;
}

.node-content:hover .node-label {
  color: var(--slate-900);
}

.node-type-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  flex-shrink: 0;
  font-family: var(--font-sans);
}

.node-type-badge.model {
  background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
  color: #0369a1;
  border: 1px solid #7dd3fc;
}

.node-type-badge.source {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
  color: #047857;
  border: 1px solid #6ee7b7;
}

.node-type-badge.seed {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
  color: #15803d;
  border: 1px solid #86efac;
}

.node-type-badge.exposure {
  background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
  color: #7e22ce;
  border: 1px solid #d8b4fe;
}

.node-type-badge.snapshot {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #b45309;
  border: 1px solid #fcd34d;
}

.folder-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  font-size: 10px;
  font-weight: 600;
  background: var(--slate-200);
  color: var(--slate-600);
  flex-shrink: 0;
  font-family: var(--font-sans);
  transition: all 0.15s ease;
}

.node-content:hover .folder-count {
  background: var(--slate-300);
  color: var(--slate-700);
}

.tree-node.expanded > .node-content .folder-count {
  background: #dbeafe;
  color: #2563eb;
}

.node-content.model.selected,
.node-content.exposure.selected {
  background: linear-gradient(135deg, var(--slate-100) 0%, var(--slate-50) 100%);
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(8, 145, 178, 0.1), 0 2px 4px rgba(0, 0, 0, 0.05);
}

.node-content.model.selected .node-label,
.node-content.exposure.selected .node-label {
  color: var(--slate-900);
  font-weight: 600;
}

.node-content.model.selected .tree-icon {
  color: var(--primary);
}

.node-content.exposure.selected .tree-icon {
  color: #7c3aed;
}

.node-content.model.selected .node-type-badge,
.node-content.exposure.selected .node-type-badge {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.tree-node.empty-folder > .node-content {
  opacity: 0.4;
}

.tree-node.empty-folder > .node-content .icon-container {
  opacity: 0.5;
}

.tree-node.empty-folder > .node-content .folder-count {
  display: none;
}

.tree-node.expanded > .node-content {
  background: var(--slate-50);
}

.tree-node.expanded > .node-content .folder-icon {
  color: #2563eb;
}

.tree-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  text-align: center;
  color: var(--slate-500);
}

.tree-empty-state svg {
  width: 40px;
  height: 40px;
  color: var(--slate-300);
  margin-bottom: 12px;
}

.tree-empty-state p {
  font-size: 13px;
  margin: 0;
}

.tree-empty-state .empty-hint {
  font-size: 11px;
  color: var(--slate-400);
  margin-top: 4px;
}

.custom-select {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.custom-select-trigger {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--slate-200);
  background: var(--slate-50);
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--slate-800);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  box-sizing: border-box;
}

.custom-select-value {
  flex: 1;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-select-arrow {
  width: 16px;
  height: 16px;
  color: var(--slate-400);
  flex-shrink: 0;
  transition: transform 0.15s ease;
}

.custom-select.open .custom-select-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.custom-select-trigger:hover {
  border-color: var(--slate-300);
  background: #fff;
}

.custom-select.open .custom-select-trigger,
.custom-select-trigger:focus {
  border-color: var(--primary);
  outline: none;
  background: #fff;
  box-shadow: 0 0 0 2px rgba(8, 145, 178, 0.1);
}

.custom-select.disabled .custom-select-trigger {
  background: var(--slate-100);
  cursor: not-allowed;
  opacity: 0.6;
  border-color: var(--slate-200);
}

.custom-select-options {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  right: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 12px;
  box-shadow:
    0 10px 40px rgba(0, 0, 0, 0.12),
    0 2px 8px rgba(0, 0, 0, 0.06),
    inset 0 0 0 1px rgba(255, 255, 255, 0.5);
  max-height: 300px;
  overflow: hidden;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.98);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.custom-select.open .custom-select-options {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.column-search-container {
  position: relative;
  padding: 8px;
  border-bottom: 1px solid var(--slate-100);
  flex-shrink: 0;
}

.column-search-input {
  width: 100%;
  padding: 8px 32px 8px 10px;
  box-sizing: border-box;
  border: 1px solid var(--slate-200);
  border-radius: 4px;
  font-size: 12px;
  background: var(--slate-50);
  color: var(--slate-800);
  outline: none;
}

.column-search-input:focus {
  border-color: var(--primary);
  background: #fff;
}

.column-search-icon {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--slate-400);
  pointer-events: none;
}

.custom-select-options-list {
  overflow-y: auto;
  overflow-x: hidden;
  max-height: 220px;
  flex: 1;
}

.custom-select-option {
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--slate-700);
  cursor: pointer;
  transition: background-color 0.1s ease;
  border-bottom: 1px solid var(--slate-50);
}

.custom-select-option:last-child {
  border-bottom: none;
}

.custom-select-option:hover {
  background: var(--slate-50);
}

.custom-select-option.selected {
  background: var(--slate-100);
  font-weight: 600;
}

.option-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
}

.option-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--slate-700);
}

.option-type-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  color: white;
  white-space: nowrap;
  flex-shrink: 0;
  text-transform: lowercase;
  font-family: var(--font-mono);
}

.explore-panel-actions {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--slate-200);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.explore-panel-actions .column-selector label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  color: var(--slate-600);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#loadLineage {
  width: 100%;
  padding: 14px 18px;
  background: linear-gradient(135deg, #c4b5fd 0%, #a78bfa 100%);
  color: white;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 13px;
  font-family: var(--font-sans);
  letter-spacing: 0.02em;
  box-shadow:
    0 4px 14px rgba(167, 139, 250, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

#loadLineage::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: left 0.5s ease;
}

#loadLineage:hover {
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  box-shadow:
    0 6px 20px rgba(167, 139, 250, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

#loadLineage:hover::before {
  left: 100%;
}

#loadLineage:active {
  transform: translateY(0);
  box-shadow:
    0 2px 8px rgba(167, 139, 250, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

#loadLineage:disabled {
  background: var(--slate-300);
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
  transform: none;
}

#loadLineage:disabled::before {
  display: none;
}

#loadLineage.loading {
  position: relative;
  text-indent: -9999px;
}

#loadLineage.loading:after {
  content: '';
  position: absolute;
  left: calc(50% - 8px);
  top: calc(50% - 8px);
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-left-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

svg {
  width: 100%;
  height: 100%;
}

.model-icon {
  pointer-events: none;
  opacity: 0.9;
}

.model-icon path {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.model-title {
  fill: var(--slate-800);
  font-weight: 600;
  font-size: 13px;
  font-family: var(--font-mono);
  dominant-baseline: middle;
  stroke: none;
}

.columns-label {
  font-weight: 500;
}

.toggle-icon {
  position: relative;
}

.toggle-icon path {
  transform-origin: center;
  transition: transform 0.2s ease;
  stroke: var(--slate-400);
}

.columns-header:hover .toggle-icon path {
  stroke: var(--slate-600);
}

.column-group {
  transition: background-color 0.1s ease;
}

.column-indicator {
  transition: opacity 0.15s;
}

.column-group:hover .column-indicator {
  opacity: 1;
}

.columns-container {
  transition: display 0.2s;
}

.columns-header {
  user-select: none;
  cursor: pointer;
}

.column-type-tag {
    pointer-events: none;
}

.column-type-tag text {
    fill: white;
  font-size: 10px;
  font-family: var(--font-mono);
  stroke: none;
}

.exposure-detail-row {
    pointer-events: none;
}

.exposure-detail-label {
  fill: var(--slate-600);
    font-size: 12px;
}

.exposure-detail-value {
  fill: #8b5cf6;
    font-size: 12px;
    font-weight: 500;
}

.exposure-type-tag {
    pointer-events: none;
}

.exposure-type-tag text {
    fill: white;
  font-size: 10px;
    stroke: none;
}

.exposure-url {
    text-decoration: underline;
    cursor: pointer;
}

.exposure-url-clickable {
    pointer-events: all;
}

.error-message {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-left: 3px solid var(--error);
  border-radius: 4px;
  color: #b91c1c;
  padding: 16px 20px;
  text-align: left;
    font-weight: 500;
  font-size: 13px;
  margin: 16px;
}