/* Chart Generator Tool Styles */

.chart-generator {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
  min-height: 0;
  padding: 2rem;
  overflow-y: auto;
}

.chart-generator-header {
  margin-bottom: 2rem;
}

.chart-generator-header h2 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text, #333);
  margin: 0 0 0.5rem 0;
}

.chart-generator-subtitle {
  color: var(--text-muted, #666);
  font-size: 1rem;
  margin: 0;
}

.chart-generator-content {
  display: grid;
  grid-template-rows: 1fr;
  min-height: 0;
}

/* ============================================
   WIZARD STEPS
   ============================================ */
.chart-wizard {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.wizard-step {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--surface, #ffffff);
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 12px;
  transition: all 0.2s ease;
}

.wizard-step.active {
  border-color: var(--primary, #0066cc);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.1);
}

.wizard-step-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: center;
}

.wizard-step-number {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: var(--primary, #0066cc);
  color: #ffffff;
  border-radius: 50%;
  font-weight: 600;
  font-size: 1rem;
}

.wizard-step-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text, #333);
  margin: 0;
}

.wizard-step-content {
  padding-left: calc(36px + 1rem);
}

.wizard-hint {
  color: var(--text-muted, #666);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

/* ============================================
   DATASET SELECTOR
   ============================================ */
.chart-dataset-selector {
  max-width: 600px;
  margin: 0 auto;
}

.dataset-drop-zone {
  margin-top: 1rem;
  padding: 3rem 2rem;
  border: 2px dashed var(--border, #e0e0e0);
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--surface-elevated, #fafafa);
}

.dataset-drop-zone:hover,
.dataset-drop-zone.dragover {
  border-color: var(--primary, #0066cc);
  background: rgba(0, 102, 204, 0.05);
}

.btn-load-dataset {
  width: 100%;
  padding: 0.75rem 1.5rem;
  background: var(--primary, #0066cc);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-load-dataset:hover {
  background: var(--primary-hover, #0052a3);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 102, 204, 0.2);
}

/* ============================================
   DATA ANALYSIS
   ============================================ */
.data-analysis-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.analysis-summary {
  display: grid;
  grid-auto-flow: column;
  gap: 2rem;
  padding: 1rem;
  background: var(--surface-elevated, #fafafa);
  border-radius: 8px;
}

.summary-item {
  display: grid;
  grid-template-rows: auto auto;
  gap: 0.25rem;
}

.summary-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted, #666);
  font-weight: 500;
}

.summary-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text, #333);
}

.column-types-panel h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text, #333);
  margin: 0 0 1rem 0;
}

.column-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.column-type-card {
  display: grid;
  grid-template-rows: auto auto;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--surface-elevated, #fafafa);
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 8px;
}

.column-type-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem;
  align-items: center;
}

.column-type-icon {
  font-size: 1.25rem;
}

.column-type-name {
  font-weight: 500;
  color: var(--text, #333);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.column-type-badge {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: capitalize;
  justify-self: start;
}

.column-type-badge.type-number {
  background: rgba(0, 102, 204, 0.1);
  color: var(--primary, #0066cc);
}

.column-type-badge.type-date {
  background: rgba(156, 39, 176, 0.1);
  color: var(--accent, #9c27b0);
}

.column-type-badge.type-string {
  background: rgba(76, 175, 80, 0.1);
  color: var(--success, #4caf50);
}

.column-type-badge.type-boolean {
  background: rgba(255, 152, 0, 0.1);
  color: var(--warning, #ff9800);
}

/* ============================================
   CHART SUGGESTIONS
   ============================================ */
.chart-suggestions {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.chart-suggestion-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--surface-elevated, #fafafa);
  border: 2px solid var(--border, #e0e0e0);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chart-suggestion-card:hover {
  border-color: var(--primary, #0066cc);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.15);
  transform: translateY(-2px);
}

.chart-suggestion-card.selected {
  border-color: var(--primary, #0066cc);
  background: rgba(0, 102, 204, 0.05);
}

.suggestion-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: start;
}

.suggestion-icon {
  font-size: 2rem;
}

.suggestion-info h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text, #333);
  margin: 0 0 0.25rem 0;
}

.suggestion-reason {
  font-size: 0.875rem;
  color: var(--text-muted, #666);
  margin: 0;
}

.recommended-badge {
  padding: 0.25rem 0.5rem;
  background: var(--warning, #ff9800);
  color: #ffffff;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}

.suggestion-details {
  font-size: 0.875rem;
  color: var(--text-muted, #666);
}

.suggestion-details p {
  margin: 0.5rem 0;
}

.btn-select-chart {
  padding: 0.75rem 1rem;
  background: var(--primary, #0066cc);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-select-chart:hover {
  background: var(--primary-hover, #0052a3);
}

/* ============================================
   CHART CONFIG
   ============================================ */
.chart-config-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.config-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

.config-label {
  font-weight: 500;
  color: var(--text, #333);
  font-size: 0.875rem;
}

.config-input,
.config-select {
  padding: 0.75rem;
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 6px;
  font-size: 0.9375rem;
  font-family: inherit;
  transition: all 0.2s ease;
}

.config-input:focus,
.config-select:focus {
  outline: none;
  border-color: var(--primary, #0066cc);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.chart-type-display {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 1rem;
  background: var(--surface-elevated, #fafafa);
  border-radius: 8px;
}

.chart-type-icon {
  font-size: 2rem;
}

.chart-type-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text, #333);
}

.btn-generate-chart {
  padding: 0.75rem 1.5rem;
  background: var(--primary, #0066cc);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  justify-self: start;
}

.btn-generate-chart:hover {
  background: var(--primary-hover, #0052a3);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 102, 204, 0.2);
}

/* ============================================
   CHART PREVIEW
   ============================================ */
.chart-preview-container {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1.5rem;
}

.chart-title-display {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text, #333);
  text-align: center;
  padding: 1rem;
  background: var(--surface-elevated, #fafafa);
  border-radius: 8px;
}

.chart-canvas {
  min-height: 400px;
  background: var(--surface, #ffffff);
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 8px;
  padding: 1rem;
  overflow: auto;
}

.chart-actions {
  display: grid;
  grid-auto-flow: column;
  gap: 1rem;
  justify-content: start;
}

.btn-primary,
.btn-secondary {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--primary, #0066cc);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover, #0052a3);
}

.btn-secondary {
  background: var(--surface-elevated, #fafafa);
  color: var(--text, #333);
  border: 1px solid var(--border, #e0e0e0);
}

.btn-secondary:hover {
  background: var(--surface, #ffffff);
  border-color: var(--border-hover, #ccc);
}

/* ============================================
   DATASET PICKER MODAL
   ============================================ */
.dataset-picker-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--surface, #ffffff);
  border-radius: 12px;
  padding: 2rem;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.modal-content h3 {
  margin: 0 0 1.5rem 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text, #333);
}

.dataset-picker-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.dataset-picker-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  background: var(--surface-elevated, #fafafa);
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.dataset-picker-item:hover {
  border-color: var(--primary, #0066cc);
  background: rgba(0, 102, 204, 0.05);
}

.picker-item-name {
  font-weight: 500;
  color: var(--text, #333);
}

.picker-item-meta {
  font-size: 0.875rem;
  color: var(--text-muted, #666);
}

.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted, #666);
  font-size: 0.875rem;
}