/* OntologyViewerPage.css - Ontology Viewer Page Layout & Styling */

.ontology-viewer-page {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
  height: calc(100vh - var(--nav-height, 100px)); /* Dynamic nav height via CSS variable */
  padding: 2rem;
  background: var(--background-color, #fafafa);
  transition: height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Sidebar */
.ontology-viewer-page__sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: auto;
  overscroll-behavior: contain; /* Prevent scroll propagation to parent/footer */
  padding-right: 1rem;
}

.ontology-viewer-page__sidebar-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary, #212121);
  margin: 0 0 0.5rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-color, #1976d2);
}

/* Category Sections */
.ontology-viewer-page__category {
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
  padding-bottom: 1rem;
}

.ontology-viewer-page__category:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.ontology-viewer-page__category-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary, #757575);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0 0 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ontology-viewer-page__category-count {
  font-weight: 400;
  color: var(--text-tertiary, #9e9e9e);
}

.ontology-viewer-page__file-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 200px;
  overflow-y: auto;
  overflow-x: hidden;
}

.ontology-viewer-page__file-item {
  padding: 0.5rem 0.75rem;
  background: white;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 4px;
  text-align: left;
  cursor: pointer;
  font-size: 0.8125rem;
  color: var(--text-primary, #212121);
  transition: all 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.ontology-viewer-page__file-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ontology-viewer-page__file-format {
  font-size: 0.6875rem;
  color: var(--text-tertiary, #9e9e9e);
  text-transform: uppercase;
}

.ontology-viewer-page__file-item:hover {
  border-color: var(--primary-color, #1976d2);
  background: var(--primary-light, #e3f2fd);
}

.ontology-viewer-page__file-item--active {
  border-color: var(--primary-color, #1976d2);
  background: var(--primary-color, #1976d2);
  color: white;
}

.ontology-viewer-page__file-item--active .ontology-viewer-page__file-format {
  color: rgba(255, 255, 255, 0.8);
}

/* Main Content */
.ontology-viewer-page__main {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  overflow-y: auto;
}

/* Header */
.ontology-viewer-page__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.ontology-viewer-page__title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary, #212121);
  margin: 0;
}

.ontology-viewer-page__tabs {
  display: flex;
  gap: 0.5rem;
}

/* Actions container (tabs + export) */
.ontology-viewer-page__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Export dropdown */
.ontology-viewer-page__export-container {
  position: relative;
}

.ontology-viewer-page__export-btn {
  padding: 0.5rem 1rem;
  background: var(--success-light, #e8f5e9);
  border: 1px solid var(--success-dark, #2e7d32);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--success-dark, #2e7d32);
  transition: all 0.2s;
}

.ontology-viewer-page__export-btn:hover:not(:disabled) {
  background: var(--success-dark, #2e7d32);
  color: white;
}

.ontology-viewer-page__export-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ontology-viewer-page__export-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.25rem;
  background: white;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 100;
  min-width: 200px;
  overflow: hidden;
}

.ontology-viewer-page__export-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-primary, #212121);
  text-align: left;
  transition: background 0.2s;
}

.ontology-viewer-page__export-option:hover:not(:disabled) {
  background: var(--primary-light, #e3f2fd);
}

.ontology-viewer-page__export-option:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ontology-viewer-page__export-option:not(:last-child) {
  border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.ontology-viewer-page__export-icon {
  font-size: 1rem;
}

.ontology-viewer-page__tab {
  padding: 0.5rem 1rem;
  background: white;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary, #757575);
  transition: all 0.2s;
}

.ontology-viewer-page__tab:hover {
  border-color: var(--primary-color, #1976d2);
  color: var(--primary-color, #1976d2);
}

.ontology-viewer-page__tab--active {
  background: var(--primary-color, #1976d2);
  color: white;
  border-color: var(--primary-color, #1976d2);
}

/* Content Area */
.ontology-viewer-page__content {
  flex: 1;
  background: white;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 8px;
  padding: 1.5rem;
  overflow-y: auto;
}

.ontology-viewer-page__loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  gap: 1rem;
  font-size: 1rem;
  color: var(--text-secondary, #757575);
}

.ontology-viewer-page__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color, #e0e0e0);
  border-top-color: var(--primary-color, #1976d2);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.ontology-viewer-page__error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  font-size: 1rem;
  color: var(--error-color, #d32f2f);
}

/* Visual View Styles */
.ontology-viewer__visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.ontology-viewer__metadata {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.ontology-viewer__name {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary, #212121);
  margin: 0 0 0.5rem 0;
}

.ontology-viewer__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary, #616161);
  margin: 0 0 1rem 0;
  line-height: 1.6;
}

.ontology-viewer__stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.ontology-viewer__stat {
  font-size: 0.875rem;
  color: var(--text-secondary, #757575);
}

.ontology-viewer__stat strong {
  color: var(--primary-color, #1976d2);
  font-weight: 600;
}

/* Search */
.ontology-viewer__search {
  position: relative;
  margin-bottom: 1rem;
}

.ontology-viewer__search-input {
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 6px;
  font-size: 0.9375rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.ontology-viewer__search-input:focus {
  outline: none;
  border-color: var(--primary-color, #1976d2);
  box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.ontology-viewer__search-clear {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary, #9e9e9e);
  font-size: 1rem;
  padding: 0.25rem;
  line-height: 1;
}

.ontology-viewer__search-clear:hover {
  color: var(--text-secondary, #757575);
}

/* Sections */
.ontology-viewer__section {
  margin-bottom: 1rem;
}

.ontology-viewer__section-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--surface-secondary, #f5f5f5);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary, #212121);
  transition: background 0.2s;
}

.ontology-viewer__section-header:hover {
  background: var(--primary-light, #e3f2fd);
}

.ontology-viewer__section-icon {
  font-size: 0.75rem;
  color: var(--text-secondary, #757575);
}

.ontology-viewer__section-content {
  margin-top: 1rem;
  padding-left: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Cards (Classes/Properties) */
.ontology-viewer__card {
  padding: 1rem;
  background: white;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 6px;
  border-left: 4px solid var(--primary-color, #1976d2);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.ontology-viewer__card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.ontology-viewer__card--highlighted {
  border-color: var(--warning-color, #ff9800);
  border-left-color: var(--warning-color, #ff9800);
  background: var(--warning-light, #fff3e0);
  animation: highlight-pulse 1s ease-out;
}

@keyframes highlight-pulse {
  0% { background: var(--warning-color, #ff9800); }
  100% { background: var(--warning-light, #fff3e0); }
}

.ontology-viewer__card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.ontology-viewer__card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary, #212121);
  margin: 0;
}

/* Badges */
.ontology-viewer__badge {
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 0.125rem 0.5rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--surface-secondary, #f5f5f5);
  color: var(--text-secondary, #757575);
}

.ontology-viewer__badge--deprecated {
  background: var(--error-light, #ffebee);
  color: var(--error-color, #d32f2f);
}

.ontology-viewer__badge--abstract {
  background: var(--info-light, #e3f2fd);
  color: var(--info-color, #1976d2);
}

.ontology-viewer__badge--object {
  background: var(--success-light, #e8f5e9);
  color: var(--success-dark, #2e7d32);
}

.ontology-viewer__badge--datatype {
  background: var(--warning-light, #fff3e0);
  color: var(--warning-dark, #e65100);
}

.ontology-viewer__badge--annotation {
  background: #f3e5f5;
  color: #7b1fa2;
}

/* URI */
.ontology-viewer__uri {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.ontology-viewer__uri code {
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary, #616161);
  background: var(--surface-secondary, #f5f5f5);
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  word-break: break-all;
  flex: 1;
}

.ontology-viewer__copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  font-size: 0.875rem;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.ontology-viewer__copy-btn:hover {
  opacity: 1;
}

/* Translations Section */
.ontology-viewer__translations {
  margin: 0.5rem 0;
}

.ontology-viewer__translations-toggle {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.75rem;
  color: var(--text-tertiary, #9e9e9e);
  padding: 0.25rem 0;
  transition: color 0.2s;
}

.ontology-viewer__translations-toggle:hover {
  color: var(--primary-color, #1976d2);
}

.ontology-viewer__translations-list {
  margin-top: 0.375rem;
  padding: 0.5rem;
  background: var(--surface-secondary, #f5f5f5);
  border-radius: 4px;
  border-left: 2px solid var(--primary-light, #90caf9);
}

.ontology-viewer__translation-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.25rem 0;
  font-size: 0.75rem;
}

.ontology-viewer__translation-item:not(:last-child) {
  border-bottom: 1px solid var(--border-color, #e0e0e0);
  padding-bottom: 0.375rem;
  margin-bottom: 0.25rem;
}

.ontology-viewer__translation-lang {
  font-weight: 600;
  color: var(--primary-color, #1976d2);
  min-width: 24px;
  text-transform: uppercase;
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 0.6875rem;
  background: var(--primary-light, #e3f2fd);
  padding: 0.125rem 0.375rem;
  border-radius: 3px;
}

.ontology-viewer__translation-value {
  color: var(--text-secondary, #616161);
  line-height: 1.4;
}

/* Description */
.ontology-viewer__description {
  font-size: 0.875rem;
  color: var(--text-secondary, #616161);
  margin: 0.5rem 0;
  line-height: 1.6;
}

.ontology-viewer__description p {
  margin: 0.25rem 0;
}

/* Relations */
.ontology-viewer__relations {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
}

.ontology-viewer__label {
  font-weight: 500;
  color: var(--text-secondary, #757575);
  margin-right: 0.5rem;
}

.ontology-viewer__tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.25rem;
}

.ontology-viewer__tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  background: var(--surface-secondary, #f5f5f5);
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 3px;
  font-family: 'Monaco', 'Menlo', monospace;
}

.ontology-viewer__tag--link {
  cursor: pointer;
  color: var(--primary-color, #1976d2);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}

.ontology-viewer__tag--link:hover {
  background: var(--primary-light, #e3f2fd);
  border-color: var(--primary-color, #1976d2);
}

/* Prefix List */
.ontology-viewer__prefix-list {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: var(--surface-secondary, #f5f5f5);
  border-radius: 4px;
  max-height: 200px;
  overflow-y: auto;
}

.ontology-viewer__prefix-item {
  display: flex;
  gap: 0.5rem;
  padding: 0.25rem 0;
  font-size: 0.8125rem;
}

.ontology-viewer__prefix-name {
  font-weight: 600;
  color: var(--primary-color, #1976d2);
  min-width: 80px;
  font-family: 'Monaco', 'Menlo', monospace;
}

.ontology-viewer__prefix-uri {
  color: var(--text-secondary, #616161);
  word-break: break-all;
}

/* No Results */
.ontology-viewer__no-results {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary, #757575);
  font-size: 0.9375rem;
}

/* Raw RDF View */
.ontology-viewer__raw {
  height: 100%;
  overflow: auto;
}

.ontology-viewer__code {
  margin: 0;
  padding: 1rem;
  background: var(--surface-secondary, #f5f5f5);
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--text-primary, #212121);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .ontology-viewer-page {
    grid-template-columns: 260px 1fr;
    gap: 1rem;
    padding: 1rem;
  }
}

@media (max-width: 768px) {
  .ontology-viewer-page {
    grid-template-columns: 1fr;
    height: auto;
  }

  .ontology-viewer-page__sidebar {
    order: 2;
    padding-right: 0;
  }

  .ontology-viewer-page__main {
    order: 1;
  }

  .ontology-viewer-page__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .ontology-viewer-page__tabs {
    width: 100%;
  }

  .ontology-viewer-page__tab {
    flex: 1;
    text-align: center;
  }
}

/* LinkML Virtual Ontology Styling */
.ontology-viewer__card--linkml {
  border-left-color: #9c27b0; /* Purple accent for custom definitions */
}

.ontology-viewer__card--linkml .ontology-viewer__uri code {
  background: #f3e5f5;
  color: #6a1b9a;
}

.ontology-viewer__badge--linkml {
  background: #f3e5f5;
  color: #7b1fa2;
}

/* LinkML indicator banner for ontology metadata section */
.ontology-viewer__linkml-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
  border: 1px solid #ce93d8;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: #6a1b9a;
}

.ontology-viewer__linkml-indicator::before {
  content: "🔮";
  font-size: 1.25rem;
}

.ontology-viewer__linkml-indicator strong {
  font-weight: 600;
}

/* ==========================================================================
   Dark Mode Support - Flat Selectors for Browser Compatibility
   ========================================================================== */

[data-theme="dark"] .ontology-viewer-page {
  background: var(--background-color, #121212);
}

[data-theme="dark"] .ontology-viewer-page__sidebar-title {
  color: var(--text-primary, #f0f0f0);
  border-bottom-color: var(--primary-color, #64b5f6);
}

[data-theme="dark"] .ontology-viewer-page__content {
  background: var(--surface-color, #1e1e1e);
  border-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer-page__file-item {
  background: var(--surface-color, #1e1e1e);
  border-color: var(--border-color, #404040);
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .ontology-viewer-page__file-item:hover {
  background: var(--primary-dark, #0d47a1);
}

[data-theme="dark"] .ontology-viewer-page__file-item--active {
  background: var(--primary-color, #1976d2);
}

[data-theme="dark"] .ontology-viewer__card {
  background: var(--surface-color, #1e1e1e);
  border-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer__card-title {
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .ontology-viewer__card--highlighted {
  background: rgba(255, 152, 0, 0.15);
}

[data-theme="dark"] .ontology-viewer__section-header {
  background: var(--surface-secondary, #2a2a2a);
  border-color: var(--border-color, #404040);
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .ontology-viewer__code {
  background: var(--surface-secondary, #2a2a2a);
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .ontology-viewer__tag {
  background: var(--surface-secondary, #2a2a2a);
  border-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer__prefix-list {
  background: var(--surface-secondary, #2a2a2a);
  border-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer__search-input {
  background: var(--surface-color, #1e1e1e);
  border-color: var(--border-color, #404040);
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .ontology-viewer__search-input::placeholder {
  color: var(--text-secondary, #808080);
}

[data-theme="dark"] .ontology-viewer__uri code {
  background: var(--surface-secondary, #2a2a2a);
  color: var(--text-secondary, #d0d0d0);
}

[data-theme="dark"] .ontology-viewer__translations-list {
  background: var(--surface-secondary, #2a2a2a);
  border-left-color: var(--primary-dark, #0d47a1);
}

[data-theme="dark"] .ontology-viewer__translation-item:not(:last-child) {
  border-bottom-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer__translation-lang {
  background: rgba(25, 118, 210, 0.2);
  color: var(--primary-light, #90caf9);
}

[data-theme="dark"] .ontology-viewer__translation-value {
  color: var(--text-secondary, #d0d0d0);
}

/* LinkML in dark mode */
[data-theme="dark"] .ontology-viewer__card--linkml {
  border-left-color: #ce93d8;
}

[data-theme="dark"] .ontology-viewer__card--linkml .ontology-viewer__uri code {
  background: rgba(156, 39, 176, 0.2);
  color: #e1bee7;
}

[data-theme="dark"] .ontology-viewer__badge--linkml {
  background: rgba(156, 39, 176, 0.2);
  color: #e1bee7;
}

[data-theme="dark"] .ontology-viewer__linkml-indicator {
  background: linear-gradient(135deg, rgba(156, 39, 176, 0.2) 0%, rgba(156, 39, 176, 0.3) 100%);
  border-color: #7b1fa2;
  color: #e1bee7;
}


/* CURIE links in descriptions */
.ontology-viewer__curie-link {
  color: var(--primary-color, #1976d2);
  text-decoration: none;
  background: rgba(25, 118, 210, 0.08);
  padding: 0.1em 0.3em;
  border-radius: 3px;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
  font-size: 0.9em;
  transition: all 0.2s ease;
}

.ontology-viewer__curie-link:hover {
  background: rgba(25, 118, 210, 0.15);
  color: var(--primary-dark, #0d47a1);
  text-decoration: underline;
}

.ontology-viewer__description-with-curies p {
  margin: 0.5em 0;
  line-height: 1.6;
}

/* Inverse relationships (Used by) */
.ontology-viewer__relations--inverse {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border-color, #e0e0e0);
}

.ontology-viewer__relations--inverse .ontology-viewer__label {
  color: var(--info-color, #1976d2);
  font-style: italic;
}

.ontology-viewer__tag--inverse {
  background: var(--info-light, #e3f2fd);
  border-color: var(--info-color, #1976d2);
  color: var(--info-color, #1976d2);
}

.ontology-viewer__tag--inverse:hover {
  background: var(--primary-color, #1976d2);
  color: white;
}

.ontology-viewer__tag--property {
  background: var(--success-light, #e8f5e9);
  border-color: var(--success-dark, #2e7d32);
  color: var(--success-dark, #2e7d32);
}

.ontology-viewer__tag--property:hover {
  background: var(--success-dark, #2e7d32);
  color: white;
}

/* Dark mode CURIE links */
[data-theme="dark"] .ontology-viewer__curie-link {
  color: var(--primary-light, #90caf9);
  background: rgba(144, 202, 249, 0.1);
}

[data-theme="dark"] .ontology-viewer__curie-link:hover {
  background: rgba(144, 202, 249, 0.2);
  color: #bbdefb;
}

[data-theme="dark"] .ontology-viewer__relations--inverse {
  border-top-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer__tag--inverse {
  background: rgba(25, 118, 210, 0.2);
  border-color: var(--primary-light, #90caf9);
  color: var(--primary-light, #90caf9);
}

[data-theme="dark"] .ontology-viewer__tag--inverse:hover {
  background: var(--primary-color, #1976d2);
  color: white;
}

[data-theme="dark"] .ontology-viewer__tag--property {
  background: rgba(46, 125, 50, 0.2);
  border-color: var(--success-light, #81c784);
  color: var(--success-light, #81c784);
}

[data-theme="dark"] .ontology-viewer__tag--property:hover {
  background: var(--success-dark, #2e7d32);
  color: white;
}

/* Export dropdown dark mode */
[data-theme="dark"] .ontology-viewer-page__export-btn {
  background: rgba(46, 125, 50, 0.2);
  border-color: var(--success-light, #81c784);
  color: var(--success-light, #81c784);
}

[data-theme="dark"] .ontology-viewer-page__export-btn:hover:not(:disabled) {
  background: var(--success-dark, #2e7d32);
  color: white;
}

[data-theme="dark"] .ontology-viewer-page__export-menu {
  background: var(--surface-color, #1e1e1e);
  border-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer-page__export-option {
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .ontology-viewer-page__export-option:hover:not(:disabled) {
  background: var(--primary-dark, #0d47a1);
}

[data-theme="dark"] .ontology-viewer-page__export-option:not(:last-child) {
  border-bottom-color: var(--border-color, #404040);
}

/* Tree view dark mode */
[data-theme="dark"] .ontology-viewer__tree-title {
  color: var(--text-primary, #f0f0f0);
}

[data-theme="dark"] .ontology-viewer__tree-header {
  border-bottom-color: var(--border-color, #404040);
}

[data-theme="dark"] .ontology-viewer__tree-control-btn {
  background: var(--surface-secondary, #2a2a2a);
  border-color: var(--border-color, #404040);
  color: var(--text-secondary, #d0d0d0);
}

[data-theme="dark"] .ontology-viewer__tree-control-btn:hover {
  background: var(--primary-dark, #0d47a1);
  color: white;
}

[data-theme="dark"] .ontology-viewer__tree-stats {
  color: var(--text-secondary, #d0d0d0);
}

[data-theme="dark"] .ontology-viewer__tree-item {
  background: var(--surface-color, #1e1e1e);
}

[data-theme="dark"] .ontology-viewer__tree-item:hover {
  background: var(--surface-secondary, #2a2a2a);
}

[data-theme="dark"] .ontology-viewer__tree-item--highlighted {
  background: rgba(255, 152, 0, 0.15);
  border-left-color: var(--warning-color, #ff9800);
}

[data-theme="dark"] .ontology-viewer__tree-toggle {
  color: var(--text-secondary, #d0d0d0);
}

[data-theme="dark"] .ontology-viewer__tree-toggle:hover {
  background: var(--primary-dark, #0d47a1);
  color: var(--primary-light, #90caf9);
}

[data-theme="dark"] .ontology-viewer__tree-leaf {
  color: var(--text-tertiary, #666666);
}

[data-theme="dark"] .ontology-viewer__tree-label {
  color: var(--primary-light, #90caf9);
}

[data-theme="dark"] .ontology-viewer__tree-label:hover {
  color: #bbdefb;
}

[data-theme="dark"] .ontology-viewer__tree-count {
  color: var(--text-tertiary, #808080);
}

[data-theme="dark"] .ontology-viewer__tree-empty {
  color: var(--text-secondary, #d0d0d0);
}

/* Tree View Styles */
.ontology-viewer__tree {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ontology-viewer__tree-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.ontology-viewer__tree-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary, #212121);
  margin: 0;
}

.ontology-viewer__tree-controls {
  display: flex;
  gap: 0.5rem;
}

.ontology-viewer__tree-control-btn {
  padding: 0.375rem 0.75rem;
  background: white;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8125rem;
  color: var(--text-secondary, #757575);
  transition: all 0.2s;
}

.ontology-viewer__tree-control-btn:hover {
  background: var(--primary-light, #e3f2fd);
  border-color: var(--primary-color, #1976d2);
  color: var(--primary-color, #1976d2);
}

.ontology-viewer__tree-stats {
  display: flex;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary, #757575);
}

.ontology-viewer__tree-container {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.ontology-viewer__tree-node {
  display: flex;
  flex-direction: column;
}

.ontology-viewer__tree-item {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.5rem;
  border-radius: 4px;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}

.ontology-viewer__tree-item:hover {
  background: var(--surface-secondary, #f5f5f5);
}

.ontology-viewer__tree-item--highlighted {
  background: var(--warning-light, #fff3e0);
  border-left-color: var(--warning-color, #ff9800);
}

.ontology-viewer__tree-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.625rem;
  color: var(--text-secondary, #757575);
  padding: 0.25rem;
  width: 1.25rem;
  height: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  transition: all 0.15s;
}

.ontology-viewer__tree-toggle:hover {
  background: var(--primary-light, #e3f2fd);
  color: var(--primary-color, #1976d2);
}

.ontology-viewer__tree-leaf {
  font-size: 0.5rem;
  color: var(--text-tertiary, #9e9e9e);
  width: 1.25rem;
  text-align: center;
}

.ontology-viewer__tree-label {
  color: var(--primary-color, #1976d2);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.15s;
}

.ontology-viewer__tree-label:hover {
  color: var(--primary-dark, #0d47a1);
  text-decoration: underline;
}

.ontology-viewer__tree-count {
  font-size: 0.75rem;
  color: var(--text-tertiary, #9e9e9e);
  margin-left: 0.25rem;
}

.ontology-viewer__tree-children {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.ontology-viewer__tree-empty {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary, #757575);
  font-size: 0.9375rem;
}

/* ==========================================================================
   Collapsible Header
   ========================================================================== */

.ontology-viewer-page__header.collapsible-header {
  transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease, margin 0.3s ease;
  max-height: 200px;
  overflow: hidden;
}

.ontology-viewer-page__header.collapsible-header--collapsed {
  max-height: 0;
  opacity: 0;
  padding-top: 0;
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

/* ==========================================================================
   Mobile Light Mode Override
   Force light mode on mobile regardless of system color scheme preference
   ========================================================================== */
@media (max-width: 900px) {
  .ontology-viewer-page {
    background: #fafafa !important;
  }

  .ontology-viewer-page__content {
    background: #ffffff !important;
    border-color: #e0e0e0 !important;
  }

  .ontology-viewer-page__sidebar-title {
    color: #212121 !important;
  }

  .ontology-viewer-page__file-item {
    background: #ffffff !important;
    border-color: #e0e0e0 !important;
    color: #212121 !important;
  }

  .ontology-viewer-page__file-item:hover {
    background: #e3f2fd !important;
  }

  .ontology-viewer-page__file-item--active {
    background: #1976d2 !important;
    color: #ffffff !important;
  }

  .ontology-viewer__card {
    background: #ffffff !important;
    border-color: #e0e0e0 !important;
  }

  .ontology-viewer__section-header {
    background: #f5f5f5 !important;
    border-color: #e0e0e0 !important;
    color: #212121 !important;
  }

  .ontology-viewer__code {
    background: #f5f5f5 !important;
    color: #212121 !important;
  }

  .ontology-viewer__tag,
  .ontology-viewer__prefix-list {
    background: #f5f5f5 !important;
    border-color: #e0e0e0 !important;
  }

  .ontology-viewer__search-input {
    background: #ffffff !important;
    border-color: #e0e0e0 !important;
    color: #212121 !important;
  }

  .ontology-viewer__uri code {
    background: #f5f5f5 !important;
    color: #757575 !important;
  }

  .ontology-viewer__translations-list {
    background: #f5f5f5 !important;
  }

  .ontology-viewer__translation-lang {
    background: rgba(25, 118, 210, 0.1) !important;
    color: #1976d2 !important;
  }

  .ontology-viewer__translation-value {
    color: #757575 !important;
  }

  /* Tree view light mode on mobile */
  .ontology-viewer__tree-header {
    border-bottom-color: #e0e0e0 !important;
  }

  .ontology-viewer__tree-control-btn {
    background: #ffffff !important;
    border-color: #e0e0e0 !important;
    color: #757575 !important;
  }

  .ontology-viewer__tree-control-btn:hover {
    background: #e3f2fd !important;
    color: #1976d2 !important;
  }

  .ontology-viewer__tree-item {
    background: transparent !important;
  }

  .ontology-viewer__tree-item:hover {
    background: #f5f5f5 !important;
  }

  .ontology-viewer__tree-label {
    color: #1976d2 !important;
  }

  /* Card title - ensure readable on light background */
  .ontology-viewer__card-title {
    color: #212121 !important;
  }
}