/* =============================================================================
   Chart Builder Page Styles
   ============================================================================= */

/* Page layout */
.chart-builder-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: #f5f1e8;
}

.chart-builder-content {
  flex: 1;
  padding: 2rem;
  max-width: 1800px;
  margin: 0 auto;
  width: 100%;
}

/* =============================================================================
   Header with tabs
   ============================================================================= */

.builder-header {
  margin-bottom: 2rem;
}

.builder-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 0.5rem;
}

.builder-subtitle {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 1.5rem;
}

.chart-type-tabs {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.chart-type-tab {
  padding: 0.75rem 1.5rem;
  background: white;
  border: 2px solid #ddd;
  border-radius: 8px 8px 0 0;
  cursor: pointer;
  font-weight: 500;
  font-size: 1rem;
  transition: all 0.2s;
  color: #333;
}

.chart-type-tab:hover {
  background: #f8f9fa;
  border-color: #bbb;
}

.chart-type-tab.active {
  background: #3b82f6;
  color: white;
  border-color: #3b82f6;
}

/* =============================================================================
   Three-panel layout
   ============================================================================= */

.builder-panels {
  display: grid;
  grid-template-columns: 320px 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 1400px) {
  .builder-panels {
    grid-template-columns: 280px 1fr 1fr;
  }
}

@media (max-width: 1200px) {
  .builder-panels {
    grid-template-columns: 1fr;
  }
}

/* =============================================================================
   Panel common styles
   ============================================================================= */

.recipe-panel,
.editor-panel,
.preview-panel {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.panel-header {
  margin-bottom: 1rem;
}

.panel-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0;
}

.ast-header {
  margin-top: 1.5rem;
}

/* =============================================================================
   Recipe panel
   ============================================================================= */

.recipe-code {
  background: #f8f9fa;
  padding: 1rem;
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
  margin-bottom: 1rem;
  border: 1px solid #e5e7eb;
}

.recipe-code code {
  font-family: inherit;
  white-space: pre;
}

.recipe-actions {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.recipe-explanation {
  background: #f0f9ff;
  padding: 1rem;
  border-radius: 4px;
  border-left: 3px solid #3b82f6;
}

.explanation-title {
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 0.5rem;
}

.explanation-text {
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  margin: 0;
  white-space: pre-wrap;
  color: #333;
}

/* =============================================================================
   Editor panel
   ============================================================================= */

.emmet-editor {
  width: 100%;
  padding: 1rem;
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: 0.9rem;
  border: 2px solid #ddd;
  border-radius: 4px;
  resize: vertical;
  min-height: 120px;
  margin-bottom: 1rem;
  background: #fafafa;
}

.emmet-editor:focus {
  outline: none;
  border-color: #3b82f6;
  background: white;
}

.editor-controls {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* Parse status */
.parse-status {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.status-empty {
  background: #f3f4f6;
  color: #6b7280;
  border-left: 3px solid #9ca3af;
}

.status-error {
  background: #fef2f2;
  color: #991b1b;
  border-left: 3px solid #dc2626;
}

.status-success {
  background: #f0fdf4;
  color: #166534;
  border-left: 3px solid #22c55e;
}

/* =============================================================================
   Preview panel
   ============================================================================= */

.chart-preview,
.ast-preview {
  min-height: 300px;
  background: #fafafa;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.chart-preview {
  min-height: 400px;
}

.ast-preview {
  min-height: 200px;
}

.preview-placeholder {
  color: #9ca3af;
  font-style: italic;
}

/* =============================================================================
   Footer
   ============================================================================= */

.builder-footer {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

@media (max-width: 1200px) {
  .builder-footer {
    grid-template-columns: 1fr;
  }
}

/* =============================================================================
   Dataset selector
   ============================================================================= */

.dataset-selector {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dataset-label {
  font-weight: 600;
  color: #1a1a1a;
  font-size: 0.9rem;
}

.dataset-select {
  padding: 0.5rem;
  border: 2px solid #ddd;
  border-radius: 4px;
  font-size: 0.9rem;
  background: white;
  cursor: pointer;
}

.dataset-select:focus {
  outline: none;
  border-color: #3b82f6;
}

.dataset-description {
  font-size: 0.85rem;
  color: #666;
  font-style: italic;
}

/* =============================================================================
   Tips section
   ============================================================================= */

.tips-section {
  padding-left: 1.5rem;
  border-left: 3px solid #22c55e;
}

.tips-title {
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 0.75rem;
  display: block;
}

.tips-list {
  margin: 0;
  padding-left: 1.5rem;
  list-style-type: disc;
}

.tip-item {
  margin-bottom: 0.5rem;
  color: #333;
  line-height: 1.5;
}

/* =============================================================================
   Buttons
   ============================================================================= */

.button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.button-primary {
  background: #3b82f6;
  color: white;
}

.button-primary:hover {
  background: #2563eb;
}

.button-secondary {
  background: #e5e7eb;
  color: #1a1a1a;
}

.button-secondary:hover {
  background: #d1d5db;
}