/**
 * Ontology Visualizer Styles
 */

.ontology-visualizer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1rem 0;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  overflow: hidden;
}

/* Toolbar */
.visualizer-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.zoom-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.zoom-level {
  font-size: 0.875rem;
  color: var(--text-secondary);
  min-width: 50px;
  text-align: center;
  font-family: var(--font-mono, 'Courier New', monospace);
}

.toolbar-actions {
  display: flex;
  gap: 0.5rem;
}

.toolbar-btn {
  padding: 0.4rem 0.8rem;
  font-size: 0.875rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.toolbar-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--primary-color);
}

.toolbar-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Diagram container */
.visualizer-container {
  overflow: auto;
  padding: 2rem;
  background: var(--bg-primary);
  transition: transform 0.2s ease-out;
  min-height: 400px;
}

.mermaid-diagram {
  display: inline-block;
  min-width: 100%;
}

.mermaid-diagram svg {
  max-width: 100%;
  height: auto;
}

/* Loading state */
.visualizer-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  gap: 1rem;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.visualizer-loading p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Error state */
.visualizer-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  gap: 0.75rem;
}

.error-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--error-color, #ef4444);
  margin: 0;
}

.error-message {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
  text-align: center;
  max-width: 500px;
}

.retry-btn {
  margin-top: 1rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.retry-btn:hover {
  background: var(--primary-dark, #2563eb);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .visualizer-toolbar {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }

  .zoom-controls,
  .toolbar-actions {
    justify-content: center;
  }

  .visualizer-container {
    padding: 1rem;
  }
}

/* Mermaid diagram theme overrides */
.mermaid-diagram .classGroup rect {
  fill: var(--bg-secondary) !important;
  stroke: var(--border-color) !important;
}

.mermaid-diagram .classLabel {
  fill: var(--text-primary) !important;
}

.mermaid-diagram .relation {
  stroke: var(--primary-color) !important;
}

.mermaid-diagram text {
  font-family: Arial, sans-serif !important;
  fill: var(--text-primary) !important;
}