/* ============================================
   Data Tools Styles
   JSON Flatten, Format Converter, Data Debug
   ============================================ */

/* Wizard Guide */
.wizard-guide {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.wizard-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  opacity: 0.5;
  transition: all var(--transition-base);
}

.wizard-step.active {
  opacity: 1;
  background: rgba(74, 158, 255, 0.1);
  border: 2px solid var(--color-primary);
}

.wizard-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.wizard-step h4 {
  margin: var(--spacing-xs) 0;
  color: var(--color-text);
  font-size: 1rem;
}

.wizard-step p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.wizard-hint {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(74, 158, 255, 0.05);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.hint-icon {
  font-size: 1rem;
}

/* JSON Flatten Tool */
.json-flatten-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.flatten-input-section,
.flatten-config-section,
.flatten-output-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.section-header h3 {
  margin: 0;
  color: var(--color-text);
  font-size: 1.25rem;
}

.section-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.input-wrapper,
.output-wrapper {
  position: relative;
}

.json-input,
.converter-input-text,
.converter-output-text {
  width: 100%;
  flex: 1;
  min-height: 200px;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-light);
  color: var(--color-text);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  resize: vertical;
  box-sizing: border-box;
}

.json-input:focus,
.converter-input-text:focus,
.converter-output-text:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.input-stats,
.output-stats {
  margin-top: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  font-size: 0.875rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
}

.stat-label {
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}

.stat-value {
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
}

.stat-item.error {
  background: rgba(255, 107, 107, 0.1);
  color: #ff6b6b;
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.config-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.config-item label {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  font-size: 0.875rem;
}

.config-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.output-preview {
  max-height: 500px;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-light);
}

.preview-placeholder {
  padding: var(--spacing-2xl);
  text-align: center;
  color: var(--color-text-muted);
}

.placeholder-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.placeholder-hint {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-sm);
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.preview-table th {
  background: var(--color-bg-card);
  padding: var(--spacing-sm);
  text-align: left;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  border-bottom: 2px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1;
}

.preview-table td {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.preview-table tr:hover {
  background: rgba(74, 158, 255, 0.05);
}

.null-value {
  color: var(--color-text-muted);
  font-style: italic;
}

.preview-more {
  padding: var(--spacing-sm);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  background: var(--color-bg-card);
}

/* Format Converter Tool */
.format-converter-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.converter-header {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.direction-selector {
  display: flex;
  gap: var(--spacing-sm);
  background: var(--color-bg-light);
  padding: var(--spacing-xs);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.direction-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
}

.direction-btn:hover {
  background: var(--color-bg-card);
  color: var(--color-text);
}

.direction-btn.active {
  background: var(--color-primary);
  color: white;
}

.converter-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: stretch;
  flex: 1;
  min-height: 0;
}

.converter-input,
.converter-output {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-height: 0;
  flex: 1;
}

.converter-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg) 0;
}

.convert-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: var(--font-weight-bold);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-base);
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.3);
}

.convert-btn:hover {
  background: var(--color-primary-dark);
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(74, 158, 255, 0.4);
}

.arrow-icon {
  font-size: 1.5rem;
}

.input-info,
.output-info {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.info-item.success {
  background: rgba(46, 213, 115, 0.1);
  color: #2ed573;
}

.info-item.error {
  background: rgba(255, 107, 107, 0.1);
  color: #ff6b6b;
}

.info-icon {
  font-weight: bold;
}

.type-analysis-panel {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.panel-header h4 {
  margin: 0;
  color: var(--color-text);
}

.panel-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.panel-close:hover {
  background: var(--color-bg-light);
  color: var(--color-text);
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.type-item {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.type-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.type-icon {
  font-size: 1.5rem;
}

.type-column {
  flex: 1;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.type-badge {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
}

.type-number { background: rgba(74, 158, 255, 0.2); color: #4a9eff; }
.type-string { background: rgba(46, 213, 115, 0.2); color: #2ed573; }
.type-date { background: rgba(255, 184, 0, 0.2); color: #ffb800; }
.type-boolean { background: rgba(156, 136, 255, 0.2); color: #9c88ff; }
.type-email { background: rgba(255, 107, 107, 0.2); color: #ff6b6b; }
.type-url { background: rgba(0, 184, 148, 0.2); color: #00b894; }

.type-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
}

.type-stat {
  display: flex;
  justify-content: space-between;
}

.type-samples {
  margin-top: var(--spacing-xs);
  padding-top: var(--spacing-xs);
  border-top: 1px solid var(--color-border);
}

.samples-label {
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}

.samples-values {
  color: var(--color-text);
  font-family: 'Courier New', monospace;
  font-size: 0.8125rem;
}

/* Data Debug Tool */
.data-debug-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.debug-header {
  margin-bottom: var(--spacing-md);
}

.debug-controls {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.debug-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.results-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.summary-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

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

.summary-content {
  flex: 1;
}

.summary-label {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

.summary-value {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.summary-value.critical {
  color: #ff6b6b;
}

.summary-value.warning {
  color: #ffb800;
}

.summary-value.success {
  color: #2ed573;
}

.issues-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.issue-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  border-left: 4px solid var(--color-border);
}

.issue-item.severity-critical {
  border-left-color: #ff6b6b;
  background: rgba(255, 107, 107, 0.05);
}

.issue-item.severity-warning {
  border-left-color: #ffb800;
  background: rgba(255, 184, 0, 0.05);
}

.issue-item.severity-info {
  border-left-color: #4a9eff;
  background: rgba(74, 158, 255, 0.05);
}

.issue-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
}

.issue-icon {
  font-size: 1.25rem;
}

.issue-type {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  flex: 1;
}

.issue-column {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.issue-severity {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  background: var(--color-bg-light);
  color: var(--color-text-muted);
}

.issue-message {
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

.issue-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.detail-item {
  display: flex;
  gap: var(--spacing-sm);
}

.detail-key {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
}

.detail-value {
  color: var(--color-text);
  font-family: 'Courier New', monospace;
}

.issue-actions {
  margin-top: var(--spacing-sm);
}

.btn-fix {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: all var(--transition-base);
}

.btn-fix:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.3);
}

.no-issues {
  text-align: center;
  padding: var(--spacing-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text);
  font-size: 1.125rem;
}

/* Enhanced Histogram Tool */
.histogram-tool-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.data-source-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.source-selector {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.source-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-light);
  color: var(--color-text);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
}

.source-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card);
}

.source-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.workspace-selector,
.generate-controls {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-end;
  flex-wrap: wrap;
}

.workspace-selector label,
.generate-controls label {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  font-size: 0.875rem;
}

.chart-config {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-end;
  flex-wrap: wrap;
}

.statistics-panel {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.statistics-panel h4 {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text);
  font-size: 1.125rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
}

.chart-container {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  flex: 1;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
}

.chart-container svg {
  max-width: 100%;
  height: auto;
}

.tooltip {
  position: absolute;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(0, 0, 0, 0.9);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  pointer-events: none;
  z-index: 1000;
}

/* Responsive */
@media (max-width: 768px) {
  .converter-layout {
    grid-template-columns: 1fr;
  }
  
  .converter-arrow {
    transform: rotate(90deg);
  }
  
  .wizard-guide {
    flex-direction: column;
  }
  
  .config-grid {
    grid-template-columns: 1fr;
  }
  
  .type-grid {
    grid-template-columns: 1fr;
  }
  
  .results-summary {
    grid-template-columns: 1fr;
  }
}