/**
 * Automation2 Flow Editor Styles
 * Sidebar with node list + canvas area.
 */

.container {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* =============================================================================
   SIDEBAR - Node List
   ============================================================================= */

.sidebar {
  flex-shrink: 0;
  width: 280px;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary, #f8f9fa);
  border-right: 1px solid var(--border-color, #e0e0e0);
  overflow: hidden;
}

.sidebarHeader {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
  background: var(--bg-primary, #fff);
}

.sidebarTitle {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary, #1a1a1a);
}

.sidebarSearch {
  margin-top: 0.75rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 6px;
  font-size: 0.875rem;
  background: var(--bg-primary, #fff);
  color: var(--text-primary, #333);
}

.sidebarSearch::placeholder {
  color: var(--text-tertiary, #999);
}

.sidebarSearch:focus {
  outline: none;
  border-color: var(--primary-color, #007bff);
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.15);
}

.nodeList {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

/* Category Groups */
.categoryGroup {
  margin-bottom: 1rem;
}


.categoryHeader {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary, #666);
}

.categoryIcon {
  margin-right: 0.5rem;
  font-size: 0.875rem;
}

.categoryLabel {
  flex: 1;
}

.categoryCount {
  background: var(--bg-tertiary, #e9ecef);
  color: var(--text-secondary, #666);
  padding: 0.125rem 0.5rem;
  border-radius: 10px;
  font-size: 0.7rem;
}

/* Node Items */
.nodeItem {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.25rem;
  border-radius: 6px;
  cursor: grab;
  transition: background 0.15s;
  border: 1px solid transparent;
}

.nodeItem:hover {
  background: var(--bg-hover, #e9ecef);
}

.nodeItem:active {
  cursor: grabbing;
}

.nodeItemIcon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  margin-right: 0.75rem;
  font-size: 0.875rem;
}

.nodeItemInfo {
  flex: 1;
  min-width: 0;
}

.nodeItemLabel {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary, #333);
}

.nodeItemDesc {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary, #666);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Loading / Error */
.loading,
.error {
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary, #666);
}

.error {
  color: var(--danger-color, #dc3545);
}

.retryButton {
  margin-top: 0.75rem;
  padding: 0.5rem 1rem;
  background: var(--primary-color, #007bff);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
}

.retryButton:hover {
  background: var(--primary-hover, #0056b3);
}

.spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* =============================================================================
   CANVAS
   ============================================================================= */

.canvas {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--canvas-bg, #fafafa);
}

.canvasHeader {
  flex-shrink: 0;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color, #e0e0e0);
  background: var(--bg-primary, #fff);
}

.canvasTitle {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary, #666);
}

.canvasArea {
  flex: 1;
  padding: 2rem;
  min-height: 400px;
  overflow: hidden;
}

.canvasDropZone {
  position: relative;
  min-height: 100%;
  height: 100%;
  overflow: auto;
  background-image: radial-gradient(circle, var(--border-color, #e0e0e0) 1px, transparent 1px);
  background-size: 20px 20px;
  border-radius: 8px;
}

.canvasPlaceholder {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-tertiary, #999);
  border: 2px dashed var(--border-color, #dee2e6);
  border-radius: 8px;
  padding: 2rem 3rem;
}

.canvasPlaceholder p {
  margin: 0.25rem 0;
  font-size: 0.875rem;
}

/* Canvas Nodes */
.canvasNode {
  position: absolute;
  border-radius: 8px;
  border: 2px solid;
  cursor: grab;
  overflow: visible;
}

.canvasNode:active {
  cursor: grabbing;
}

.canvasNodeSelected {
  box-shadow: 0 0 0 2px var(--primary-color, #007bff);
}

.canvasNodeContent {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  height: 100%;
  box-sizing: border-box;
}

.canvasNodeIcon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 0.9rem;
}

.canvasNodeText {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.canvasNodeTitle {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary, #333);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: text;
}

.canvasNodeTitle:hover {
  text-decoration: underline;
}

.canvasNodeComment {
  font-size: 0.7rem;
  color: var(--text-tertiary, #999);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: text;
  min-height: 1em;
}

.canvasNodeComment:hover {
  text-decoration: underline;
}

.canvasNodeInput {
  width: 100%;
  padding: 0.15rem 0.25rem;
  font-size: 0.875rem;
  border: 1px solid var(--primary-color, #007bff);
  border-radius: 4px;
  outline: none;
}

/* Connection Handles */
.handle {
  position: absolute;
  border-radius: 50%;
  background: var(--bg-primary, #fff);
  border: 2px solid var(--border-color, #666);
  cursor: crosshair;
  z-index: 2;
}

.handle:hover,
.handleConnectable {
  border-color: var(--primary-color, #007bff);
  background: var(--primary-color, #007bff);
}

.handleInput {
  cursor: copy;
}

/* Node Config Panel */
.nodeConfigPanel {
  padding: 1rem;
  background: var(--bg-primary, #fff);
  border-left: 1px solid var(--border-color, #e0e0e0);
  width: 280px;
  flex-shrink: 0;
  overflow-y: auto;
  min-width: 0;
}

.nodeConfigPanel h4 {
  margin: 0 0 0.75rem 0;
  font-size: 0.9rem;
}

.nodeConfigPanel label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary, #666);
  margin-top: 0.5rem;
  margin-bottom: 0.25rem;
}

.nodeConfigPanel input[type='text'],
.nodeConfigPanel input[type='number'],
.nodeConfigPanel select,
.nodeConfigPanel textarea {
  width: 100%;
  padding: 0.4rem;
  font-size: 0.875rem;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 4px;
}

.nodeConfigPanel textarea {
  min-height: 60px;
}

.nodeConfigPanel button {
  margin-top: 0.5rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  background: var(--primary-color, #007bff);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

/* Form fields editor (input.form) */
.formFieldsList {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.formFieldRow {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.5rem;
  background: var(--bg-secondary, #f8f9fa);
  border-radius: 6px;
  border: 1px solid var(--border-color, #e0e0e0);
}

.formFieldRowHeader {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}

.formFieldDragHandle {
  flex-shrink: 0;
  padding: 0.25rem;
  cursor: grab;
  color: var(--text-tertiary, #999);
  align-self: stretch;
  display: flex;
  align-items: center;
}

.formFieldDragHandle:active {
  cursor: grabbing;
}

.formFieldDragHandle:hover {
  color: var(--text-secondary, #666);
}

.formFieldInputs {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.formFieldRowFooter {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.formFieldRequiredLabel {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-secondary, #666);
  cursor: pointer;
}