/* Sidebar */
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.sidebar {
  display: flex;
  flex-shrink: 0;
  height: 100%;
  transition: width 0.2s ease;
}

.sidebar.collapsed {
  width: 48px;
}

.sidebar:not(.collapsed) {
  width: 328px; /* 48px icons + 280px panel */
}

.sidebar-icons {
  display: flex;
  flex-direction: column;
  width: 48px;
  background: var(--gray-100, #f3f4f6);
  border-right: 1px solid var(--gray-200, #e5e7eb);
  padding: 8px 0;
  gap: 4px;
  align-items: center;
}

.sidebar-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  color: var(--gray-500, #6b7280);
  transition: all 0.15s ease;
}

.sidebar-icon:hover {
  background: var(--gray-200, #e5e7eb);
  color: var(--gray-700, #374151);
}

.sidebar-icon.active {
  background: var(--gray-200, #e5e7eb);
  color: var(--primary-dark, #5661b3);
  box-shadow: inset 3px 0 0 var(--primary-dark, #5661b3);
}

.sidebar-icon:focus-visible {
  outline: 2px solid var(--primary-dark, #5661b3);
  outline-offset: 2px;
}

.sidebar-panel {
  width: 280px;
  background: var(--gray-50, #f9fafb);
  border-right: 1px solid var(--gray-200, #e5e7eb);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar.collapsed .sidebar-panel {
  display: none;
}

.sidebar-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-200, #e5e7eb);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-600, #4b5563);
}

.sidebar-panel-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--gray-400, #9ca3af);
  padding: 0 4px;
  border-radius: 4px;
}

.sidebar-panel-close:hover {
  background: var(--gray-200, #e5e7eb);
  color: var(--gray-600, #4b5563);
}

.sidebar-panel-close:focus-visible {
  outline: 2px solid var(--primary-dark, #5661b3);
  outline-offset: 2px;
}

.sidebar-panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

/* Dark theme support */
body[class*='dark'] .sidebar-icons,
body[class*='dark'] .sidebar-panel {
  background: #1e1e1e;
  border-color: #333;
}

body[class*='dark'] .sidebar-icon {
  color: #888;
}

body[class*='dark'] .sidebar-icon:hover {
  background: #333;
  color: #ccc;
}

body[class*='dark'] .sidebar-icon.active {
  background: #333;
  color: #8b9aff;
  box-shadow: inset 3px 0 0 #8b9aff;
}

body[class*='dark'] .sidebar-panel-header {
  border-color: #333;
  color: #ccc;
}

/* Panel list items (templates, etc.) */
.panel-list-item {
  padding: 10px 12px;
  border-radius: 6px;
  cursor: pointer;
  margin-bottom: 4px;
}
.panel-list-item:hover {
  background: var(--gray-200, #e5e7eb);
}
.panel-list-item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-800, #1f2937);
}
.panel-list-item-desc {
  font-size: 11px;
  color: var(--gray-500, #6b7280);
  margin-top: 2px;
}

body[class*='dark'] .panel-list-item:hover {
  background: #333;
}
body[class*='dark'] .panel-list-item-title {
  color: #ddd;
}
body[class*='dark'] .panel-list-item-desc {
  color: #888;
}

/* Explorer Panel */
.explorer-toolbar {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}
.explorer-path {
  flex: 1;
  padding: 6px 8px;
  border: 1px solid var(--gray-300, #d1d5db);
  border-radius: 6px;
  font-size: 12px;
  background: white;
  overflow: hidden;
  text-overflow: ellipsis;
}
.explorer-browse-btn {
  border: 1px solid var(--gray-300, #d1d5db);
  border-radius: 6px;
  background: white;
  cursor: pointer;
  padding: 4px 8px;
}
.tree-item {
  padding: 3px 0;
  cursor: pointer;
  font-size: 13px;
  user-select: none;
}
.tree-item:hover {
  background: var(--gray-100, #f3f4f6);
  border-radius: 4px;
}
.tree-icon {
  margin-right: 4px;
  font-size: 12px;
}
.tree-children {
  padding-left: 16px;
}
.tree-folder.collapsed .tree-children {
  display: none;
}
.tree-name {
  font-size: 13px;
}

/* Git Panel */
.git-section {
  margin-bottom: 16px;
}
.git-section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-500);
  margin-bottom: 8px;
}
.git-file {
  display: flex;
  align-items: center;
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 13px;
  gap: 6px;
}
.git-file:hover {
  background: var(--gray-100, #f3f4f6);
}
.git-file-status {
  font-weight: 700;
  font-family: monospace;
  width: 16px;
  text-align: center;
}
.git-file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.git-stage-btn {
  border: none;
  background: var(--gray-200);
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  width: 22px;
  height: 22px;
}
.git-commit-input {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
  box-sizing: border-box;
}
.git-commit-btn {
  width: 100%;
  margin-top: 8px;
  padding: 8px;
  background: var(--primary-dark, #5661b3);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}
.git-commit-btn:hover {
  opacity: 0.9;
}
.git-log-entry {
  padding: 6px 0;
  border-bottom: 1px solid var(--gray-100);
}
.git-log-msg {
  font-size: 13px;
}
.git-log-meta {
  font-size: 11px;
  color: var(--gray-500);
  margin-top: 2px;
}
.git-info {
  font-size: 13px;
  color: var(--gray-500);
  padding: 8px 0;
}
.git-loading {
  font-size: 13px;
  color: var(--gray-400);
}
.git-diff-btn {
  border: none;
  background: var(--gray-200);
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  padding: 2px 6px;
}
.git-diff-view {
  margin-top: 8px;
  max-height: 240px;
  overflow: auto;
  padding: 8px;
  background: var(--gray-100, #f3f4f6);
  border-radius: 6px;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}
.git-branch-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 13px;
  gap: 6px;
}
.git-branch-item:hover {
  background: var(--gray-100, #f3f4f6);
}
.git-branch-current {
  font-weight: 600;
}
.git-branch-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.git-checkout-btn {
  border: none;
  background: var(--gray-200);
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  padding: 2px 6px;
}
.git-branch-new {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}
.git-branch-input {
  flex: 1;
  padding: 6px 8px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 13px;
  box-sizing: border-box;
}
.git-branch-create-btn {
  border: none;
  background: var(--gray-200);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  padding: 6px 8px;
}
.git-remote-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.git-push-btn,
.git-pull-btn {
  flex: 1;
  padding: 8px;
  background: var(--primary-dark, #5661b3);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}
.git-push-btn:hover,
.git-pull-btn:hover {
  opacity: 0.9;
}
.git-remote-status {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 6px;
  min-height: 14px;
}

/* Snippets Panel */
.snippets-toolbar {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}
.snippets-search {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 13px;
}
.snippets-add-btn {
  width: 32px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  background: white;
  font-size: 18px;
  cursor: pointer;
}
.snippet-item {
  padding: 8px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  margin-bottom: 6px;
}
.snippet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
.snippet-name {
  font-size: 13px;
  font-weight: 500;
}
.snippet-lang {
  font-size: 11px;
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--gray-500);
}
.snippet-preview {
  font-size: 12px;
  background: var(--gray-50);
  padding: 6px;
  border-radius: 4px;
  margin: 4px 0;
  overflow: hidden;
  max-height: 60px;
}
.snippet-preview code {
  font-family: 'JetBrains Mono', monospace;
}
.snippet-actions {
  display: flex;
  gap: 4px;
}
.snippet-insert {
  font-size: 12px;
  padding: 4px 8px;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  background: white;
  cursor: pointer;
}
.snippet-delete {
  font-size: 14px;
  padding: 4px 8px;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  background: white;
  cursor: pointer;
  color: #ef4444;
}

/* Dark theme for sidebar panels */
body[class*='dark'] .explorer-path,
body[class*='dark'] .explorer-browse-btn,
body[class*='dark'] .snippets-search,
body[class*='dark'] .snippets-add-btn,
body[class*='dark'] .snippet-insert,
body[class*='dark'] .snippet-delete {
  background: #2d2d2d;
  border-color: #444;
  color: #ccc;
}
body[class*='dark'] .git-commit-input,
body[class*='dark'] .git-branch-input {
  background: #2d2d2d;
  border-color: #444;
  color: #ccc;
}
body[class*='dark'] .git-diff-view {
  background: #2d2d2d;
  color: #ccc;
}
body[class*='dark'] .snippet-item {
  border-color: #444;
}
body[class*='dark'] .snippet-preview {
  background: #2d2d2d;
}
body[class*='dark'] .tree-item:hover,
body[class*='dark'] .git-file:hover,
body[class*='dark'] .git-branch-item:hover {
  background: #333;
}

/* Outline Panel */
.outline-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.outline-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}
.outline-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 12px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary, #6b7280);
  transition:
    background 0.15s,
    color 0.15s;
  border-left: 2px solid transparent;
}
.outline-item:hover {
  background: var(--bg-tertiary, #f3f4f6);
  color: var(--text-primary, #1f2937);
}
.outline-item.active {
  color: var(--accent-blue, #3b82f6);
  background: rgba(59, 130, 246, 0.08);
  border-left-color: var(--accent-blue, #3b82f6);
  font-weight: 600;
}
.outline-level-1 {
  padding-left: 12px;
}
.outline-level-2 {
  padding-left: 24px;
}
.outline-level-3 {
  padding-left: 36px;
}
.outline-level-4 {
  padding-left: 48px;
}
.outline-level-5 {
  padding-left: 56px;
}
.outline-level-6 {
  padding-left: 64px;
}
.outline-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.outline-badge {
  font-size: 10px;
  opacity: 0.5;
  margin-left: 8px;
  flex-shrink: 0;
}
.outline-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  color: var(--text-muted, #9ca3af);
  text-align: center;
}
.outline-empty p {
  margin: 4px 0;
}
.outline-hint {
  font-family: monospace;
  font-size: 12px;
  opacity: 0.7;
}
.outline-footer {
  padding: 8px 12px;
  border-top: 1px solid var(--border-color, #e5e7eb);
  font-size: 11px;
  color: var(--text-muted, #9ca3af);
}

/* Outline dark mode */
body[class*='dark'] .outline-item {
  color: #9ca3af;
}
body[class*='dark'] .outline-item:hover {
  background: #374151;
  color: #e5e7eb;
}
body[class*='dark'] .outline-item.active {
  color: #8b9aff;
  background: rgba(139, 154, 255, 0.1);
  border-left-color: #8b9aff;
}
body[class*='dark'] .outline-empty {
  color: #6b7280;
}
body[class*='dark'] .outline-footer {
  border-color: #333;
  color: #6b7280;
}

/* ================================
 * Plugin panels (writing-studio + AI Assistant)
 * ================================ */

/* Generic plugin panel scaffold */
.ws-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px;
  font-size: 13px;
}
.ws-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ws-heading {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted, #6b7280);
}
.ws-btn {
  padding: 5px 10px;
  border: 1px solid var(--border-color, #d1d5db);
  border-radius: 4px;
  background: var(--bg-primary, #fff);
  color: inherit;
  cursor: pointer;
  font-size: 12px;
}
.ws-btn:hover {
  background: var(--bg-secondary, #f3f4f6);
}
.ws-btn-primary {
  background: #4a90d9;
  border-color: #4a90d9;
  color: #fff;
}
.ws-btn-primary:hover {
  background: #3a7bc8;
}
.ws-btn-sm {
  padding: 3px 8px;
  font-size: 11px;
}
.ws-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.ws-muted {
  color: var(--text-muted, #9ca3af);
  font-size: 12px;
}
.ws-stat-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
}
.ws-pct {
  font-weight: 600;
  color: #4a90d9;
}
.ws-progress-bar {
  height: 8px;
  border-radius: 4px;
  background: var(--bg-secondary, #e5e7eb);
  overflow: hidden;
}
.ws-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #4a90d9, #6aa8e8);
  transition: width 0.3s ease;
}
.ws-snapshot-list,
.ws-issues-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ws-snapshot-item,
.ws-issue-item {
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 6px;
  padding: 8px;
}
.ws-snapshot-header,
.ws-issue-type {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted, #6b7280);
}
.ws-issue-type {
  font-weight: 700;
  color: #c06040;
}
.ws-issue-text {
  margin-top: 4px;
  font-size: 12px;
}
.ws-issue-suggestion {
  margin-top: 2px;
  font-size: 12px;
  color: #2e7d32;
}
.ws-issue-actions {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

/* Writing heatmap (Goals panel) */
.ws-heatmap {
  display: grid;
  grid-template-rows: repeat(7, 10px);
  grid-auto-flow: column;
  grid-auto-columns: 10px;
  gap: 2px;
}
.ws-heatmap-cell {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--bg-secondary, #ebedf0);
}
.ws-heatmap-cell.l1 {
  background: #9be9a8;
}
.ws-heatmap-cell.l2 {
  background: #40c463;
}
.ws-heatmap-cell.l3 {
  background: #30a14c;
}
.ws-heatmap-cell.l4 {
  background: #216e39;
}

/* AI Chat panel */
.ai-chat-panel {
  height: 100%;
}
.ai-chat-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.ai-chat-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ai-chat-badge-ok {
  background: rgba(46, 125, 50, 0.12);
  color: #2e7d32;
}
.ai-chat-badge-off {
  background: rgba(192, 96, 64, 0.12);
  color: #c06040;
}
.ai-chat-messages {
  flex: 1;
  min-height: 200px;
  max-height: 45vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 4px 0;
}
.ai-chat-msg {
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}
.ai-chat-msg-user {
  background: rgba(74, 144, 217, 0.12);
  align-self: flex-end;
  max-width: 90%;
}
.ai-chat-msg-assistant {
  background: var(--bg-secondary, #f3f4f6);
  align-self: flex-start;
  max-width: 95%;
}
.ai-chat-msg-busy {
  color: var(--text-muted, #9ca3af);
  font-style: italic;
}
.ai-chat-msg-role {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted, #9ca3af);
  margin-bottom: 2px;
}
.ai-chat-composer {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ai-chat-composer textarea {
  width: 100%;
  resize: vertical;
  min-height: 56px;
  padding: 8px;
  border: 1px solid var(--border-color, #d1d5db);
  border-radius: 6px;
  font: inherit;
  background: var(--bg-primary, #fff);
  color: inherit;
  box-sizing: border-box;
}
.ai-chat-actions,
.ai-chat-footer {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.ai-chat-footer {
  justify-content: flex-start;
}

/* AI settings/input modal overlays */
.ai-settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}
.ai-settings-dialog {
  background: var(--bg-primary, #fff);
  color: var(--text-primary, #222);
  border-radius: 8px;
  padding: 20px;
  width: 380px;
  max-width: 90vw;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.ai-settings-dialog h3 {
  margin: 0 0 4px;
}
.ai-settings-dialog label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
}
.ai-settings-dialog input,
.ai-settings-dialog select {
  padding: 6px 8px;
  border: 1px solid var(--border-color, #d1d5db);
  border-radius: 4px;
  font: inherit;
  background: var(--bg-primary, #fff);
  color: inherit;
}
.ai-settings-note {
  font-size: 11px;
  color: var(--text-muted, #9ca3af);
  margin: 0;
}
.ai-settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Dark mode adjustments for plugin panels */
body[class*='dark'] .ws-btn {
  background: #374151;
  border-color: #4b5563;
  color: #e5e7eb;
}
body[class*='dark'] .ws-btn:hover {
  background: #4b5563;
}
body[class*='dark'] .ai-chat-msg-assistant {
  background: #374151;
}
body[class*='dark'] .ai-chat-composer textarea,
body[class*='dark'] .ai-settings-dialog input,
body[class*='dark'] .ai-settings-dialog select {
  background: #1f2937;
  border-color: #4b5563;
  color: #e5e7eb;
}
body[class*='dark'] .ai-settings-dialog {
  background: #1f2937;
  color: #e5e7eb;
}

/* Wiki links in the preview (knowledge-base mode) */
.preview-content a.wiki-link {
  color: #8b5cf6;
  text-decoration: none;
  border-bottom: 1px dashed #8b5cf6;
}
.preview-content a.wiki-link:hover {
  background: rgba(139, 92, 246, 0.1);
}
body[class*='dark'] .preview-content a.wiki-link {
  color: #a78bfa;
  border-bottom-color: #a78bfa;
}
/* Resolved comments fade but stay visible */
.ws-issue-item.comment-resolved {
  opacity: 0.55;
}

/* Goals panel: stat cards + 30-day bar chart (writing-studio) */
.ws-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.ws-stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 6px;
  padding: 10px 6px;
}
.ws-stat-value {
  font-size: 18px;
  font-weight: 700;
}
.ws-stat-label {
  font-size: 11px;
  color: var(--text-muted, #9ca3af);
}
.ws-chart {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 64px;
}
.ws-bar {
  flex: 1;
  min-width: 3px;
  background: #9cbfe8;
  border-radius: 2px 2px 0 0;
}
.ws-bar-met {
  background: #2e7d32;
}

/* History panel diff modal */
.history-diff-dialog {
  width: 640px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}
.history-diff-body {
  overflow: auto;
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 6px;
  padding: 8px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  flex: 1;
  min-height: 200px;
}
.history-diff-line {
  padding: 0 4px;
  border-radius: 2px;
}
.history-diff-added {
  background: rgba(46, 125, 50, 0.12);
  color: #2e7d32;
}
.history-diff-removed {
  background: rgba(198, 40, 40, 0.1);
  color: #c62828;
}
.history-diff-unchanged {
  color: var(--text-secondary, inherit);
  opacity: 0.75;
}

/* === Flow Chart Editor panel === */
.flowchart-panel {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  outline: none;
}
.flowchart-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-color, #444);
}
.flowchart-insert-btn {
  padding: 4px 10px;
  border: 1px solid var(--accent, #4a9eff);
  background: var(--accent, #4a9eff);
  color: var(--accent-fg, #fff);
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
}
.flowchart-status {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted, #888);
}
.flowchart-split {
  display: flex;
  flex: 1;
  min-height: 0;
}
.flowchart-canvas-host {
  flex: 7;
  min-width: 0;
  position: relative;
  background: var(--bg-secondary, #1e1e1e);
}
.flowchart-canvas-host svg.flowchart-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}
.flowchart-preview-host {
  flex: 3;
  min-width: 0;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border-color, #444);
}
.flowchart-preview-source {
  flex: 1;
  margin: 0;
  padding: 8px;
  font-family: var(--mono-font, monospace);
  font-size: 11px;
  overflow: auto;
  white-space: pre;
  border-bottom: 1px solid var(--border-color, #444);
}
.flowchart-preview-render {
  flex: 1;
  /* Non-zero CSS height guarantees the Mermaid-rendered SVG has room to lay
   * out — without this, flex children in a collapsed parent can compute to 0
   * height and mermaid's <svg> ends up invisible even though it parsed and
   * attached to the DOM. */
  min-height: 120px;
  padding: 8px;
  overflow: auto;
}
/* v4.9.5 — force light, readable surfaces inside the flowchart canvas and
 * preview regardless of the project's theme class on <body>. The flowchart
 * is a focused editor surface (similar to the PDF viewer) and the previous
 * "inherit body theme" approach left users with dark-on-dark rectangles and
 * dark-on-dark Mermaid SVG output, both effectively invisible. Keeping this
 * surface light trades theme consistency for guaranteed visibility — the
 * user has been explicit that WORKING > consistent with body theme. */
.flowchart-canvas-host,
.flowchart-preview-host {
  background: #fafafa !important;
  color: #1f2328 !important;
}
.flowchart-node rect,
.flowchart-node polygon {
  fill: #ffffff !important;
  stroke: #1f2328 !important;
  stroke-width: 1.25;
}
.flowchart-node text {
  fill: #1f2328 !important;
}
.flowchart-edge {
  stroke: #1f2328 !important;
  stroke-width: 1.25;
}
.flowchart-node {
  cursor: grab;
}
/* v4.9.5 — selection highlight: prior to this rule set, `.selected` only
 * painted a 2px stroke on a near-black fill — barely visible against the
 * dark canvas. Add a fill change AND bump stroke-width so the highlight is
 * unmissable. Same logic for edges. */
.flowchart-node.selected rect,
.flowchart-node.selected polygon {
  fill: #e3f0ff !important;
  stroke: #4a9eff !important;
  stroke-width: 3;
}
.flowchart-edge.selected {
  stroke: #4a9eff !important;
  stroke-width: 3;
}
.flowchart-label-input {
  font-size: 13px;
  text-align: center;
  border: 1px solid var(--accent, #4a9eff);
  background: var(--bg-primary, #fff);
  color: inherit;
  z-index: 100;
}

/* Takeover mode — the Flow Chart panel promotes itself to fill the main
 * area, hiding the editor-container so the canvas + preview split the full
 * window width instead of the 280px sidebar. Toggled by the maximize
 * button in src/sidebar/flowchart-panel.js (adds/removes
 * `.flowchart-takeover` on `.main-content`). Restore on second click or on
 * panel destroy(). */
.main-content.flowchart-takeover .editor-container {
  display: none;
}
.main-content.flowchart-takeover .sidebar {
  width: auto;
  flex: 1;
}
.main-content.flowchart-takeover .sidebar:not(.collapsed) {
  /* The takeover is only meaningful with the flowchart panel open, so the
   * 48px collapsed-state width doesn't apply. Force the wide layout. */
  width: auto;
}
.main-content.flowchart-takeover .sidebar-panel {
  flex: 1;
  width: auto;
}
.main-content.flowchart-takeover .sidebar-panel-content {
  padding: 0;
}
/* The panel itself should fill the panel-content column instead of being
 * constrained by the normal 12px padding-block flow. */
.main-content.flowchart-takeover .flowchart-panel {
  height: 100%;
}

/* Maximize button — small icon+label pill in the panel toolbar. */
.flowchart-maximize-btn {
  margin-left: 8px;
  padding: 4px 10px;
  border: 1px solid var(--border-color, #444);
  background: var(--bg-primary, #fff);
  color: inherit;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.flowchart-maximize-btn:hover {
  border-color: var(--accent, #4a9eff);
  color: var(--accent, #4a9eff);
}
.flowchart-maximize-btn:focus-visible {
  outline: 2px solid var(--accent, #4a9eff);
  outline-offset: 2px;
}
.flowchart-maximize-btn.active {
  background: var(--accent, #4a9eff);
  border-color: var(--accent, #4a9eff);
  color: var(--accent-fg, #fff);
}
.flowchart-maximize-icon {
  font-size: 14px;
  line-height: 1;
}