/* Transform Tool Styles */

.transform-tool-container {
  padding: var(--spacing-lg, 1.5rem);
}

.dataset-status-banner {
  margin-bottom: var(--spacing-lg, 1.5rem);
  padding: var(--spacing-md, 1rem) var(--spacing-lg, 1.5rem);
  border-radius: var(--radius-md, 8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-base, 0.2s);
}

.dataset-status-banner.dataset-not-loaded {
  background: rgba(212, 153, 34, 0.15);
  border: 1px solid rgba(212, 153, 34, 0.3);
  color: var(--warning, #d29922);
}

.dataset-status-banner.dataset-loaded {
  background: rgba(63, 185, 80, 0.15);
  border: 1px solid rgba(63, 185, 80, 0.3);
  color: var(--success, #3fb950);
}

.status-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  flex: 1;
}

.status-icon {
  font-size: 1.25rem;
  font-weight: 600;
}

.status-text {
  font-size: 0.9375rem;
  font-weight: 500;
}

.status-text strong {
  font-weight: 600;
}

.btn-load-dataset {
  padding: 0.375rem 0.75rem;
  background: var(--accent-primary, #58a6ff);
  border: none;
  border-radius: var(--radius-sm, 4px);
  color: white;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast, 0.1s);
}

.btn-load-dataset:hover {
  background: var(--accent-hover, #79c0ff);
  transform: translateY(-1px);
}

.transform-header {
  margin-bottom: var(--spacing-lg, 1.5rem);
  border-bottom: 1px solid var(--border-primary, #30363d);
}

.operation-tabs {
  display: flex;
  gap: var(--spacing-sm, 0.5rem);
  overflow-x: auto;
}

.operation-tab {
  padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 0.75rem);
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-bottom: none;
  border-radius: var(--radius-md, 8px) var(--radius-md, 8px) 0 0;
  color: var(--text-secondary, #8b949e);
  cursor: pointer;
  transition: all var(--transition-base, 0.2s);
  font-size: 0.875rem;
  white-space: nowrap;
}

.operation-tab:hover {
  background: var(--bg-hover, #1f2329);
  color: var(--text-primary, #e6edf3);
}

.operation-tab.active {
  background: var(--bg-secondary, #161b22);
  border-color: var(--accent-primary, #58a6ff);
  color: var(--accent-primary, #58a6ff);
  font-weight: 500;
}

.transform-content {
  margin-bottom: var(--spacing-lg, 1.5rem);
}

.transform-empty {
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-secondary, #8b949e);
}

/* Filter Operation Styles */
.filter-operation,
.sort-operation,
.select-columns-operation,
.group-by-operation {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg, 1.5rem);
}

.filter-section,
.group-by-section {
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-md, 8px);
  padding: var(--spacing-lg, 1.5rem);
}

.filter-section h3,
.group-by-section h3 {
  margin: 0 0 var(--spacing-md, 1rem) 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary, #e6edf3);
}

.column-selector-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md, 1rem);
  margin-bottom: var(--spacing-md, 1rem);
  padding-bottom: var(--spacing-md, 1rem);
  border-bottom: 1px solid var(--border-primary, #30363d);
}

.btn-small {
  padding: 0.375rem 0.75rem;
  background: var(--bg-secondary, #161b22);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  cursor: pointer;
  font-size: 0.8125rem;
  transition: all var(--transition-fast, 0.1s);
}

.btn-small:hover {
  background: var(--bg-hover, #1f2329);
  border-color: var(--accent-primary, #58a6ff);
}

.selection-count {
  margin-left: auto;
  font-size: 0.8125rem;
  color: var(--text-secondary, #8b949e);
}

.column-checkbox-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 0.5rem);
  max-height: 400px;
  overflow-y: auto;
}

.column-checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  padding: var(--spacing-sm, 0.5rem);
  background: var(--bg-secondary, #161b22);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  cursor: pointer;
  transition: all var(--transition-fast, 0.1s);
}

.column-checkbox:hover {
  border-color: var(--accent-primary, #58a6ff);
  transform: translateX(2px);
}

.column-name {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-primary, #e6edf3);
}

.column-rename {
  flex: 1;
  padding: 0.25rem 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.8125rem;
}

.column-type-badge {
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm, 4px);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
}

.column-type-badge.type-number {
  background: rgba(96, 165, 250, 0.2);
  color: #60a5fa;
}

.column-type-badge.type-string {
  background: rgba(148, 163, 184, 0.2);
  color: #94a3b8;
}

.column-type-badge.type-unknown {
  background: rgba(107, 114, 128, 0.2);
  color: #6b7280;
}

.filter-conditions-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md, 1rem);
  margin-bottom: var(--spacing-md, 1rem);
}

.filter-condition {
  background: var(--bg-secondary, #161b22);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-md, 8px);
  padding: var(--spacing-md, 1rem);
}

.condition-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  margin-bottom: var(--spacing-sm, 0.5rem);
}

.condition-column {
  flex: 1;
  padding: 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.875rem;
}

.btn-remove-condition,
.btn-remove-sort,
.btn-remove-group,
.btn-remove-agg {
  padding: 0.25rem 0.5rem;
  background: transparent;
  border: 1px solid var(--border-danger, #f85149);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-danger, #f85149);
  cursor: pointer;
  font-size: 1.125rem;
  line-height: 1;
  transition: all var(--transition-fast, 0.1s);
}

.btn-remove-condition:hover,
.btn-remove-sort:hover,
.btn-remove-group:hover,
.btn-remove-agg:hover {
  background: rgba(248, 81, 73, 0.1);
}

.condition-body {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  flex-wrap: wrap;
}

.condition-operator {
  padding: 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.875rem;
  min-width: 150px;
}

.condition-value {
  flex: 1;
  padding: 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.875rem;
  min-width: 200px;
}

.condition-case-sensitive {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8125rem;
  color: var(--text-secondary, #8b949e);
}

.subset-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 0.5rem);
}

.subset-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  font-size: 0.875rem;
  color: var(--text-primary, #e6edf3);
  cursor: pointer;
}

/* Sort Operation Styles */
.sort-columns-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 0.5rem);
  margin-bottom: var(--spacing-md, 1rem);
}

.sort-column {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  padding: var(--spacing-sm, 0.5rem);
  background: var(--bg-secondary, #161b22);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
}

.sort-column-select {
  flex: 1;
  padding: 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.875rem;
}

.sort-direction {
  padding: 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.875rem;
  min-width: 120px;
}

.column-reorder-hint {
  padding: var(--spacing-md, 1rem);
  background: rgba(88, 166, 255, 0.1);
  border: 1px solid rgba(88, 166, 255, 0.3);
  border-radius: var(--radius-md, 8px);
  font-size: 0.8125rem;
  color: var(--text-secondary, #8b949e);
}

/* Group By Operation Styles */
.group-by-columns-list,
.aggregations-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 0.5rem);
  margin-bottom: var(--spacing-md, 1rem);
}

.group-by-column,
.aggregation {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  padding: var(--spacing-sm, 0.5rem);
  background: var(--bg-secondary, #161b22);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
}

.group-by-column-select,
.aggregation-function,
.aggregation-column {
  padding: 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.875rem;
}

.group-by-column-select,
.aggregation-column {
  flex: 1;
}

.aggregation-function {
  min-width: 150px;
}

.aggregation-alias {
  flex: 1;
  padding: 0.5rem;
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-primary, #e6edf3);
  font-size: 0.875rem;
}

.transform-actions {
  display: flex;
  gap: var(--spacing-md, 1rem);
  justify-content: flex-end;
  padding-top: var(--spacing-md, 1rem);
  border-top: 1px solid var(--border-primary, #30363d);
}

.transform-preview {
  background: var(--bg-tertiary, #1c2128);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-md, 8px);
  padding: var(--spacing-lg, 1.5rem);
  margin-top: var(--spacing-lg, 1.5rem);
}

.preview-summary h4 {
  margin: 0 0 var(--spacing-md, 1rem) 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary, #e6edf3);
}

.preview-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md, 1rem);
  margin-bottom: var(--spacing-lg, 1.5rem);
}

.preview-stats .stat-item {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md, 1rem);
  background: var(--bg-secondary, #161b22);
  border-radius: var(--radius-md, 8px);
}

.preview-stats .stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary, #8b949e);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.preview-stats .stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary, #e6edf3);
}

.preview-changes h5 {
  margin: 0 0 var(--spacing-sm, 0.5rem) 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary, #e6edf3);
}

.changes-list {
  margin: 0;
  padding-left: 1.5rem;
  color: var(--text-secondary, #8b949e);
  font-size: 0.875rem;
}

.changes-list li {
  margin-bottom: 0.25rem;
}

.preview-sample {
  margin-top: var(--spacing-lg, 1.5rem);
}

.preview-sample h5 {
  margin: 0 0 var(--spacing-sm, 0.5rem) 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary, #e6edf3);
}

.preview-table-container {
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-md, 8px);
  overflow: auto;
  max-height: 300px;
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.preview-table th {
  background: var(--bg-secondary, #161b22);
  color: var(--accent-primary, #58a6ff);
  font-weight: 600;
  padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 0.75rem);
  text-align: left;
  position: sticky;
  top: 0;
  border-bottom: 2px solid var(--border-primary, #30363d);
}

.preview-table td {
  padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 0.75rem);
  border-bottom: 1px solid var(--border-primary, #30363d);
  color: var(--text-primary, #e6edf3);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-table tr:hover td {
  background: rgba(88, 166, 255, 0.05);
}