:root {
  color-scheme: light;
  --bg: #f9fcfe;
  --panel: #ffffff;
  --text: #22536b;
  --muted: #637381;
  --border: #e1e7ec;
  --primary: #22536b;
  --accent: #0089cf;
  --accent-light: #d9eefb;
  --accent-strong: #0089cf;
}

body[data-theme="classic"] {
  --bg: #f7f7f8;
  --panel: #ffffff;
  --text: #121314;
  --muted: #6d7175;
  --border: #e5e7eb;
  --primary: #111827;
  --accent: #2563eb;
  --accent-light: #dbe7ff;
  --accent-strong: #1d4ed8;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.hidden {
  display: none !important;
}

body {
  font-family: "IBM Plex Sans", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app {
  --sidebar-width: 220px;
  --sidebar-collapsed-width: 56px;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  height: 100vh;
  min-width: 0;
}

.app.sidebar-collapsed {
  grid-template-columns: var(--sidebar-collapsed-width) minmax(0, 1fr);
}

.sidebar {
  border-right: 1px solid var(--border);
  padding: 20px 16px;
  width: var(--sidebar-width);
  min-width: 0;
  background: var(--panel);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: width 0.2s ease;
  overflow: hidden;
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.02);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
  padding: 16px 12px;
}

.sidebar-top {
  display: flex;
  align-items: center;
  flex-direction: row;
  justify-content: flex-start;
  gap: 10px;
  align-items: center;
}

.sidebar-top .icon {
  width: auto;
  min-width: 40px;
  padding: 10px 12px;
}

.sidebar-top .sidebar-search {
  flex: 1;
  min-width: 0;
}

.sidebar-bottom .icon {
  width: 100%;
  min-width: 100%;
}

.sidebar-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  min-height: 0;
}

.sidebar-bottom {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 8px;
  margin-top: auto;
}


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

.sidebar.collapsed .sidebar-top {
  flex-direction: column;
  align-items: flex-start;
}

.sidebar.collapsed .sidebar-top .icon {
  width: 100%;
  min-width: 100%;
}

.sidebar.collapsed .sidebar-top .sidebar-search {
  display: none;
}

.sidebar.collapsed .sidebar-bottom {
  display: flex;
}

.collapsed-open-items {
  display: none;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.sidebar.collapsed .collapsed-open-items {
  display: flex;
}

.brand {
  font-weight: 600;
  letter-spacing: 0.2px;
}

.sidebar.collapsed .brand {
  font-size: 14px;
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.7;
}

.current-space-name {
  padding: 8px 12px;
  margin: 4px 0 8px 0;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.current-space-name:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-1px);
}

.current-space-name::after {
  content: '\f0a9';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: 8px;
  font-size: 11px;
  opacity: 0.7;
}

.search {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  background: var(--bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 137, 207, 0.1);
}

.history {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-item {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 12px;
  cursor: pointer;
  background: var(--panel);
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  position: relative;
  flex: 0 0 auto;
  align-self: stretch;
  overflow: visible;
}

.history-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.history-item.dragging {
  opacity: 0.5;
}

.history-outline {
  margin-top: 8px;
  padding: 6px 0 0 0;
  display: none;
  gap: 6px;
  flex-direction: column;
  border-top: 1px dashed var(--border);
  max-height: none;
  overflow: visible;
}

.history-item.expanded .history-outline {
  display: flex;
}

.history-outline .outline-item {
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-outline .outline-item.level-2 {
  padding-left: 10px;
}

.history-item.drop-before {
  box-shadow: inset 0 2px 0 0 var(--accent);
}

.history-item.drop-after {
  box-shadow: inset 0 -2px 0 0 var(--accent);
}

.history-item:hover {
  box-shadow: 0 4px 12px rgba(0, 137, 207, 0.15), 0 2px 4px rgba(0, 137, 207, 0.1);
  transform: translateY(-1px);
  border-color: rgba(0, 137, 207, 0.2);
}

.history-item.active {
  border-color: var(--accent);
  background: var(--accent-light);
  box-shadow: 0 4px 12px rgba(0, 137, 207, 0.2), 0 2px 4px rgba(0, 137, 207, 0.15);
}

.history-item .title {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 0;
}

.history-item .meta {
  display: block;
  margin-top: 0;
  font-size: 12px;
  color: var(--muted);
}

.history-item .delete {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.history-item:hover .delete {
  opacity: 1;
  pointer-events: auto;
}

.history-item .delete:hover {
  color: #ef4444;
  border-color: #ef4444;
}

.main {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  min-width: 0;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.toolbar button {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

.toolbar button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.toolbar button.primary:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.toolbar button.ghost {
  background: transparent;
}

.toolbar button.icon,
.sidebar button.icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.sidebar button.icon {
  width: 34px;
  min-width: 34px;
  height: 38px;
  justify-content: flex-start;
  gap: 12px;
  padding: 8px;
  border: 1px solid transparent;
  background: transparent;
  font-size: 16px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 10px;
}

.sidebar:not(.collapsed) button.icon {
  width: 100%;
  padding: 8px 12px;
}

.sidebar button.icon:hover {
  background: var(--accent-light);
  border-color: rgba(0, 137, 207, 0.2);
  color: var(--accent);
}

.sidebar .icon-label {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
}

.sidebar.collapsed button.icon {
  justify-content: center;
  padding: 8px;
}

.sidebar.collapsed .icon-label {
  display: none;
}

.collapsed-open-item {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: none;
  background: #e2e8f0;
  color: #111827;
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.collapsed-open-item.active {
  background: var(--accent);
  color: white;
}

.status {
  color: var(--muted);
  font-size: 13px;
}

.content {
  flex: 1;
  display: grid;
  grid-template-columns: var(--col-editor, 1.1fr) 6px var(--col-preview, 1fr);
  gap: 16px;
  padding: 20px;
  overflow: hidden;
  height: 100%;
  min-width: 0;
}


section {
  background: var(--panel);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 4px rgba(0, 0, 0, 0.02);
}

.editor {
  fill: var(--accent-light);
  height: 100%;
  min-width: 0;
}

.right-pane {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
  min-width: 0;
}

.right-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

.panel {
  display: none;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  height: 100%;
}

.panel.active {
  display: flex;
}

.preview-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.node-content {
  border-top: 1px solid var(--border);
  flex: 2 1 66%;
  overflow: auto;
  display: flex;
  flex-direction: column;
}

.node-content.hidden {
  display: none;
}

.tree-inline {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-bottom: 1px solid var(--border);
}

.tree-inline.hidden {
  display: none;
}

.resizer {
  width: 6px;
  border-radius: 10px;
  background: transparent;
  cursor: col-resize;
  position: relative;
}

.resizer::after {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 2px;
  width: 2px;
  background: var(--border);
  border-radius: 10px;
}

.tree-resizer {
  height: 6px;
  width: 100%;
  cursor: row-resize;
}

.tree-resizer::after {
  top: 2px;
  bottom: auto;
  left: 12px;
  right: 12px;
  height: 2px;
  width: auto;
}

.tree-resizer.hidden {
  display: none;
}

.tree-panel-body {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tree-panel-body .tree-view {
  flex: 1;
  min-height: 0;
}

.tree-footer-hint {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--border);
  padding: 8px 12px;
  color: var(--muted);
  font-size: 12px;
}


.content.tree-hidden .tree,
.content.tree-hidden .tree-resizer {
  display: none;
}

.section-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.section-header.header-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.chat-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.header-divider {
  width: 1px;
  height: 18px;
  background: var(--border);
  margin: 0 2px;
  display: inline-block;
}

.ai-chat-session-select {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 8px;
  padding: 4px 8px;
  font-size: 12px;
  max-width: 200px;
}

.header-right-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.preview-presets {
  position: relative;
  display: flex;
  align-items: center;
}

.preview-preset-btn {
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.preview-preset-btn:hover {
  background: var(--panel);
  color: var(--text);
}

.preview-preset-btn.active {
  border-color: var(--border);
  color: var(--text);
  background: var(--panel);
}

.preview-preset-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
  padding: 6px;
  min-width: 180px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.preview-preset-item {
  border: none;
  background: transparent;
  padding: 8px 10px;
  border-radius: 8px;
  text-align: left;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
}

.preview-preset-item:hover {
  background: var(--accent-light);
}

.preview-preset-item.active {
  background: var(--accent-light);
  color: var(--primary);
}

.header-icons {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.header-icons button,
.header-icon {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.header-icons button:hover,
.header-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.header-icon.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.share-menu {
  position: relative;
}

.share-menu-panel {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: none;
  padding: 2px 0;
  min-width: 220px;
  z-index: 6;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.share-menu-item {
  border: none;
  background: transparent;
  padding: 9px 12px;
  border-radius: 0;
  text-align: left;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  width: 100%;
  box-shadow: none;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.share-menu-item i {
  width: 16px;
  text-align: center;
  color: var(--muted);
  opacity: 1;
}

.share-menu-item span {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.share-menu-divider {
  height: 1px;
  margin: 2px 0;
  background: rgba(34, 83, 107, 0.08);
}

.share-menu-item:hover {
  background: rgba(34, 83, 107, 0.04);
  color: var(--accent-strong);
}

.share-menu-item:hover i {
  color: var(--accent-strong);
}

.editor-host {
  flex: 1;
  overflow: hidden;
  min-height: 0;
  height: 100%;
  display: flex;
  position: relative;
}

.editor-suggestion {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border: 1px solid #86efac;
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: #166534;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.08);
  z-index: 10;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.editor-suggestion i {
  color: #22c55e;
  font-size: 16px;
  flex-shrink: 0;
}

.editor-suggestion .suggestion-apply {
  margin-left: auto;
  background: #22c55e;
  color: white;
  border: none;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.editor-suggestion .suggestion-apply:hover {
  background: #16a34a;
  transform: scale(1.05);
}

.editor-host.hidden {
  display: none;
}

.editor .tree-inline {
  flex: 1;
  min-height: 0;
}

.CodeMirror {
  height: 100%;
  font-size: 14px;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  border-left: 1px solid var(--border);
  flex: 1;
}

.CodeMirror-scroll {
  padding-bottom: 50vh;
}

.CodeMirror-hints {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 13px;
  max-height: 240px;
  overflow-y: auto;
  padding: 4px 0;
}

.CodeMirror-hint {
  padding: 6px 12px;
  color: var(--text);
  cursor: pointer;
  border-radius: 4px;
  margin: 2px 4px;
}

.CodeMirror-hint.mermaid-hint {
  font-weight: 500;
}

.CodeMirror-hint-active {
  background: var(--accent-light);
  color: var(--accent);
}

.CodeMirror .cm-header,
.CodeMirror .cm-header-1,
.CodeMirror .cm-header-2,
.CodeMirror .cm-header-3,
.CodeMirror .cm-header-4,
.CodeMirror .cm-header-5,
.CodeMirror .cm-header-6 {
  color: var(--accent) !important;
  font-weight: 600;
}

.CodeMirror-scroll,
.CodeMirror-sizer {
  min-height: 100%;
}

.CodeMirror-scroll {
  height: 100%;
}

.CodeMirror-gutters {
  background: #f9fafb;
  border-right: 1px solid var(--border);
}

.CodeMirror-foldgutter {
  width: 12px;
}

.CodeMirror-foldgutter-open,
.CodeMirror-foldgutter-folded {
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1;
  padding-top: 2px;
  transition: color 0.2s ease;
}

.CodeMirror-foldgutter-open:hover,
.CodeMirror-foldgutter-folded:hover {
  color: var(--accent);
}

.CodeMirror-foldgutter-open::after {
  content: "▼";
}

.CodeMirror-foldgutter-folded::after {
  content: "▶";
}

.preview-content {
  padding: 16px;
  padding-bottom: 50vh;
  overflow: auto;
  flex: 1;
  min-height: 0;
}

.text-highlight {
  background-color: rgba(255, 235, 59, 0.4);
  border-radius: 2px;
  padding: 0 2px;
  transition: background-color 0.2s ease;
}

.CodeMirror .text-highlight-cm {
  background-color: rgba(255, 235, 59, 0.4);
}

.syntax-error,
.syntax-warning {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.syntax-warning {
  background: #fffbeb;
  border-color: #fde047;
  flex-direction: row;
  align-items: center;
  padding: 12px 16px;
}

.syntax-error-icon {
  color: #dc2626;
  font-size: 20px;
  flex-shrink: 0;
}

.syntax-warning .syntax-error-icon {
  color: #ca8a04;
  font-size: 18px;
  margin-right: 12px;
}

.syntax-error-title {
  font-weight: 600;
  color: #991b1b;
  font-size: 14px;
}

.syntax-error-message {
  color: #7f1d1d;
  font-size: 13px;
  line-height: 1.5;
}

.syntax-warning .syntax-error-message {
  color: #854d0e;
  flex: 1;
}

.syntax-error-details {
  margin-top: 8px;
}

.syntax-error-details summary {
  cursor: pointer;
  color: #991b1b;
  font-size: 12px;
  font-weight: 500;
  user-select: none;
}

.syntax-error-details summary:hover {
  text-decoration: underline;
}

.syntax-error-details pre {
  margin-top: 8px;
  background: #fff;
  border: 1px solid #fca5a5;
  border-radius: 4px;
  padding: 12px;
  font-size: 12px;
  overflow-x: auto;
  color: #7f1d1d;
}

.mermaid-error {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: 8px;
  padding: 0;
}

.syntax-healed {
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border: 1px solid #86efac;
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #166534;
  font-weight: 500;
}

.syntax-healed i {
  color: #22c55e;
  font-size: 14px;
}

.preview-content.preset-compact {
  font-size: 13px;
  line-height: 1.45;
}

.preview-content.preset-scientific {
  font-family: "Source Serif 4", "Times New Roman", serif;
  line-height: 1.6;
  font-size: 15px;
}

.preview-content.preset-literary {
  font-family: "Georgia", "Times New Roman", serif;
  line-height: 1.8;
  font-size: 16px;
}


.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4,
.preview-content h5,
.preview-content h6 {
  margin: 14px 0 8px;
  color: var(--accent);
}

.preview-content p {
  margin-bottom: 10px;
  color: var(--muted);
}

.preview-content ul,
.preview-content ol {
  margin: 10px 0;
  padding-left: 28px;
  color: var(--muted);
}

.preview-content li {
  margin: 4px 0;
}

.preview-content a {
  color: var(--accent);
}

.preview-content a:hover {
  color: var(--primary);
}

.preview-content code {
  background: #f3f4f6;
  color: #0f172a;
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 12px;
}

.preview-content pre code {
  display: block;
  padding: 12px;
  overflow: auto;
}

.preview-content blockquote {
  border-left: 3px solid #cbd5f5;
  padding-left: 12px;
  color: #475569;
}

.preview-content hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 16px 0;
}

.preview-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0;
}

.preview-content th,
.preview-content td {
  border: 1px solid var(--border);
  padding: 8px;
  text-align: left;
}


.tree-view {
  padding: 16px;
  overflow: auto;
  font-size: 14px;
  flex: 1;
  position: relative;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  min-height: 220px;
}

.tree-view.maximized {
  flex: 1 1 100%;
}

.tree-view.maximized + .node-content {
  display: none;
}

.tree-inline .node-content .preview-content {
  max-height: 240px;
}

.tree-inline .node-content .header-icons {
  display: none;
}

.tree-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  z-index: 2;
}

.tree-tooltip {
  position: absolute;
  background: rgba(17, 24, 39, 0.9);
  color: white;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 12px;
  max-width: 260px;
  pointer-events: none;
  transform: translate(-50%, -100%);
  white-space: nowrap;
}

.tree-actions button {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}

.tree-actions button:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.tree-svg {
  width: 100%;
  height: 100%;
}

.tree-svg .markmap-node.tree-branch-active circle,
.tree-svg .markmap-node.tree-branch-active rect,
.tree-svg .markmap-node.tree-branch-active polygon,
.tree-svg .markmap-node.tree-branch-active path {
  stroke: #0b63d1 !important;
  stroke-width: 3px !important;
  filter: drop-shadow(0 0 6px rgba(11, 99, 209, 0.55));
}

.tree-svg .markmap-node.tree-branch-active text {
  fill: #0a4ea6 !important;
  font-weight: 800 !important;
}

.tree-svg .markmap-node.tree-branch-active .markmap-foreign,
.tree-svg .markmap-node.tree-branch-active foreignObject {
  background: rgba(11, 99, 209, 0.14) !important;
  border-radius: 8px;
}

.tree-boundary {
  fill: none;
  stroke: var(--border);
  stroke-dasharray: 3 4;
}

.tree-links path,
.tree-links {
  stroke: var(--border);
  stroke-width: 1;
  fill: none;
}

.tree-node {
  fill: var(--accent);
  cursor: pointer;
}

.tree-node.level-1 {
  fill: var(--accent);
}

.node-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.node-actions button {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tree-node.level-2 {
  fill: #10b981;
}

.tree-node.level-3 {
  fill: #f59e0b;
}

.tree-node.level-4,
.tree-node.level-5,
.tree-node.level-6 {
  fill: #ef4444;
}

.tree-node.dimmed,
.tree-label-group.dimmed {
  opacity: 0.35;
}

.tree-node.root {
  fill: var(--accent-light);
}

.tree-label {
  font-size: 12px;
  fill: var(--text);
}

.tree-label-bg {
  fill: rgba(255, 255, 255, 0.85);
  stroke: var(--border);
}

.footer {
  position: sticky;
  bottom: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

.footer-stats {
  min-height: 16px;
}

.footer-impressum {
  color: var(--muted);
  text-decoration: none;
}

.footer-impressum:hover {
  color: var(--text);
  text-decoration: underline;
}

.toast-container {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  min-width: 220px;
  max-width: 360px;
  background: var(--panel);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
  font-size: 13px;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.info {
  border-left: 3px solid var(--accent);
}

.toast.success {
  border-left: 3px solid #10b981;
}

.toast.error {
  border-left: 3px solid #ef4444;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.2);
  z-index: 40;
}

.modal {
  position: fixed;
  inset: 0;
  margin: auto;
  width: min(720px, 92vw);
  height: min(560px, 85vh);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  z-index: 41;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}

.modal.hidden,
.modal-overlay.hidden {
  display: none;
}

#tipsModal {
  height: fit-content;
  max-height: 85vh;
  min-height: 0;
}

#tipsModal .modal-body {
  flex: 0 0 auto;
  overflow: visible;
  padding: 14px 20px 16px;
}

.modal-large {
  width: min(1100px, 88vw);
  height: min(860px, 92vh);
  max-height: calc(100vh - 40px);
}

#layoutModal {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#layoutModal .modal-header {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: white;
  padding: 14px 20px;
  border-bottom: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  min-height: 52px;
  z-index: 1;
}

#layoutModal .modal-header h2 {
  color: white;
  font-size: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

#layoutModal .modal-header h2 i {
  font-size: 22px;
}

#layoutModal .modal-header .icon {
  color: white;
  opacity: 0.9;
  transition: all 0.2s;
}

#layoutModal .modal-header .icon:hover {
  opacity: 1;
  transform: scale(1.1);
}

#spacesModal .modal-body {
  overflow-x: auto;
  overflow-y: hidden;
}

.spaces-grid {
  display: flex;
  gap: 12px;
  padding: 12px;
  min-height: 100%;
}

.space-column {
  flex: 0 0 240px;
  width: 240px;
  min-width: 240px;
  max-width: 240px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.space-column.new-space {
  flex: 0 0 240px;
  width: 240px;
  min-width: 240px;
  max-width: 240px;
  align-items: center;
  justify-content: flex-start;
}

.space-header {
  padding: 10px 12px;
  background: var(--accent-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 44px;
  overflow: hidden;
  gap: 8px;
}

.space-header:hover {
  background: var(--accent);
  color: white;
}

.space-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  outline: none;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.space-header:hover .space-name {
  color: white;
}

.space-name:focus {
  cursor: text;
}

.space-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.space-action-btn {
  opacity: 0.8;
  transition: all 0.2s;
  color: var(--muted);
  cursor: pointer;
  padding: 3px 6px;
  border-radius: 4px;
  border: none;
  background: transparent;
  font-size: 12px;
}

.space-pin {
  opacity: 0.8;
}

.space-pin.active {
  color: var(--accent);
  background: rgba(0, 137, 207, 0.12);
}

.space-header:hover .space-action-btn {
  color: white;
}

.space-header:hover .space-pin.active {
  background: rgba(255, 255, 255, 0.2);
}

.space-delete {
  opacity: 0;
  transition: opacity 0.2s;
  color: var(--muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  border: none;
  background: transparent;
}

.space-header:hover .space-delete {
  opacity: 1;
}

.space-delete:hover {
  color: #dc2626;
  background: rgba(220, 38, 38, 0.1);
}

.space-files {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 100px;
  padding: 8px;
  background: var(--bg-lighter);
  border-radius: 8px;
  border: 2px dashed transparent;
  transition: all 0.2s;
}

.space-files.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}

.space-file-card {
  padding: 8px 10px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: move;
  transition: all 0.2s;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.space-file-card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(0, 137, 207, 0.1);
  transform: translateY(-1px);
}

.space-file-card.dragging {
  opacity: 0.5;
}

.space-file-card.drop-before {
  border-top: 2px solid var(--accent);
}

.space-file-card.drop-after {
  border-bottom: 2px solid var(--accent);
}

.space-file-main {
  flex: 1;
  min-width: 0;
}

.space-file-delete {
  opacity: 0;
  transition: opacity 0.2s;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  border: none;
  background: transparent;
}

.space-file-card:hover .space-file-delete {
  opacity: 1;
}

.space-file-delete:hover {
  color: #dc2626;
  background: rgba(220, 38, 38, 0.1);
}

.space-file-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.space-file-meta {
  font-size: 11px;
  color: var(--muted);
}

.add-space-btn {
  width: 60px;
  height: 60px;
  border: 2px dashed var(--border);
  border-radius: 12px;
  background: transparent;
  color: var(--muted);
  font-size: 24px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.add-space-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
  transform: scale(1.05);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
}

.modal-header h2 {
  font-size: 16px;
  margin: 0;
  color: var(--text);
}

.modal-header .icon {
  border: 1px solid var(--border);
  background: var(--panel);
  width: 30px;
  height: 30px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}

.modal-header .icon:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.modal-tabs {
  display: flex;
  gap: 24px;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
}

.modal-tabs .tab {
  border: none;
  background: transparent;
  padding: 14px 4px;
  border-radius: 0;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
  font-weight: 500;
}

.modal-tabs .tab:hover {
  color: var(--text);
}

.modal-tabs .tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.modal-body {
  padding: 24px;
  overflow: auto;
  flex: 1;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px 16px;
  margin-top: 12px;
}

.settings-grid .setting {
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.compact-settings-description {
  margin-bottom: 10px;
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.45;
}

.markdown-settings-grid {
  gap: 6px 16px;
}

.markdown-settings-grid .setting {
  padding: 2px 0;
  gap: 10px;
}

.markdown-settings-grid .setting-title {
  font-size: 12px;
  line-height: 1.35;
}

.settings-description {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 0 8px 0;
  padding: 12px 16px;
  background: var(--bg);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}

.help-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
}

.help-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.about-title {
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 8px;
}

.about-subtitle {
  font-size: 14px;
  color: var(--primary);
  margin-top: 20px;
  margin-bottom: 8px;
  font-weight: 600;
}

.about-text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 12px;
}

.about-imprint {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 12px;
}

.preview-selection {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  background: var(--accent-light);
}

.preview-sync-highlight {
  outline: 2px solid #1f6feb;
  outline-offset: 2px;
  background: rgba(31, 111, 235, 0.12);
  border-radius: 4px;
  transition: outline-color 150ms ease, background-color 150ms ease;
}

.setting {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
}

.setting-text {
  flex: 1;
}

.setting-title {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

.setting-subtitle {
  margin-top: 2px;
  font-size: 11px;
  line-height: 1.35;
  color: var(--muted);
}

.setting-control {
  margin-top: 8px;
}

.setting-select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  background: var(--panel);
  color: var(--text);
}

.setting-textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  background: var(--panel);
  color: var(--text);
  resize: vertical;
}

.setting-full {
  grid-column: 1 / -1;
}

.workspace-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.workspace-controls select {
  flex: 1;
  min-width: 200px;
  margin-right: 0;
}

.workspace-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.workspace-btn:hover {
  background: var(--accent-strong);
}

.workspace-btn-danger {
  background: #dc2626;
}

.workspace-btn-danger:hover {
  background: #b91c1c;
}

.workspace-btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.workspace-btn-icon:hover {
  background: var(--accent-strong);
  transform: scale(1.05);
}

.workspace-btn-icon.workspace-btn-danger {
  background: #dc2626;
}

.workspace-btn-icon.workspace-btn-danger:hover {
  background: #b91c1c;
}

.workspace-info {
  margin-top: 10px;
  padding: 8px 12px;
  background: var(--accent-light);
  border-radius: 6px;
  font-size: 13px;
  color: var(--primary);
  display: none;
}

.workspace-info.visible {
  display: block;
}

.sync-buttons,
.storage-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.storage-actions .btn-secondary,
.storage-actions .btn-danger {
  flex: 1;
  min-width: 140px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.storage-actions .btn-secondary {
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border-color);
}

.storage-actions .btn-secondary:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.storage-actions .btn-danger {
  background: #fee2e2;
  color: #dc2626;
  border: 1px solid #fca5a5;
}

.storage-actions .btn-danger:hover {
  background: #dc2626;
  color: white;
  border-color: #dc2626;
  transform: translateY(-1px);
}

.sync-buttons {
  display: flex;
  flex-direction: row;
  gap: 8px;
  margin-top: 12px;
}

.sync-action-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.sync-action-btn:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

.sync-action-btn i {
  font-size: 16px;
}

.sync-action-btn.sync-danger {
  background: #dc2626;
}

.sync-action-btn.sync-danger:hover {
  background: #b91c1c;
}

.sync-action-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s;
}

.sync-action-icon:hover {
  background: var(--accent-strong);
  transform: translateY(-1px) scale(1.05);
}

.sync-action-icon.sync-danger {
  background: #dc2626;
}

.sync-action-icon.sync-danger:hover {
  background: #b91c1c;
}

.sync-status {
  margin-top: 12px;
  padding: 10px;
  border-radius: 6px;
  font-size: 13px;
  display: none;
}

/* Danger Zone */
.danger-zone {
  margin-top: 32px;
  padding: 16px;
  border: 1px solid #fca5a5;
  border-radius: 8px;
  background: #fef2f2;
}

.danger-zone h3 {
  margin: 0 0 12px 0;
  color: #dc3545;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0.9;
}

.danger-zone-content {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  justify-content: space-between;
}

.danger-zone-text {
  flex: 1;
}

.danger-zone-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}

.danger-zone-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.btn-danger-outline {
  padding: 8px 16px;
  background: transparent;
  color: #dc3545;
  border: 1px solid #dc3545;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-danger-outline:hover {
  background: #dc3545;
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.25);
}

/* Icon Buttons (with border) */
.icon-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
}

.icon-btn:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.icon-btn-danger {
  color: #dc3545;
  border-color: #fca5a5;
}

.icon-btn-danger:hover {
  background: #fee2e2;
  border-color: #dc3545;
  color: #dc3545;
}

/* Storage Actions List */
.storage-action-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.storage-action-list-inline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.storage-panel-grid {
  gap: 14px 16px;
}

.storage-action-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
}

.storage-action-item:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.storage-action-danger {
  border-color: #fca5a5;
}

.storage-action-danger:hover {
  background: #fee2e2;
  border-color: #dc3545;
}

.storage-action-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text);
  font-size: 16px;
}

.storage-action-item:hover .storage-action-icon {
  background: white;
  color: var(--accent);
}

.storage-action-danger:hover .storage-action-icon {
  color: #dc3545;
}

.storage-action-text {
  flex: 1;
  min-width: 0;
}

.storage-action-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.storage-action-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* AI Settings Styles */
.ai-providers {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-provider-row {
  display: grid;
  grid-template-columns: 40px 160px 1fr;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-secondary);
  transition: all 0.2s;
}

.ai-provider-row:hover {
  border-color: var(--accent-light);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.ai-provider-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ai-provider-name {
  font-weight: 600;
  font-size: 13px;
  color: var(--text);
}

.ai-provider-controls {
  display: flex;
  gap: 10px;
  align-items: center;
}

.ai-model-select {
  flex: 0 0 200px;
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.ai-model-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.ai-key-form {
  flex: 1;
  display: flex;
  min-width: 0;
}

.ai-key-input {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-family: 'Courier New', monospace;
  font-size: 12px;
  min-width: 0;
}

.ai-key-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.ai-key-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
  font-size: 11px;
}

.ai-status {
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 12px;
  display: none;
}

.ai-status.visible {
  display: block;
}

.ai-status.using-server {
  background: var(--accent-light);
  color: var(--accent);
}

.ai-status.using-custom {
  background: #d1fae5;
  color: #065f46;
}

.ai-status.error {
  background: #fee2e2;
  color: #991b1b;
}

.setting-control {
  display: flex;
  align-items: center;
  gap: 0;
}

.setting-control form {
  display: flex;
  align-items: center;
  gap: 0;
  width: 100%;
}

.setting-input {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
}

.setting-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.sync-status {
  margin-top: 12px;
  padding: 10px;
  border-radius: 6px;
  font-size: 13px;
  display: none;
}

.sync-status.visible {
  display: block;
}

.sync-status.success {
  background: #d1fae5;
  color: #065f46;
}

.sync-status.error {
  background: #fee2e2;
  color: #991b1b;
}

.sync-status.info {
  background: var(--accent-light);
  color: var(--primary);
}

.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch .slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: #e2e8f0;
  border-radius: 999px;
  transition: 0.2s;
}

.switch .slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 2px;
  top: 2px;
  background: white;
  border-radius: 50%;
  transition: 0.2s;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.2);
}

.switch input:checked + .slider {
  background: var(--accent);
}

.switch input:checked + .slider::before {
  transform: translateX(18px);
}

.admonition {
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 8px;
  padding: 10px 12px;
  margin: 12px 0;
  background: #f8fafc;
}

.admonition-title {
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 13px;
}

.admonition-info {
  border-left-color: #3b82f6;
}

.admonition-warning {
  border-left-color: #f59e0b;
}

.admonition-tip {
  border-left-color: #10b981;
}

.md-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 12px 0;
}

.md-column {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}

.md-break {
  position: relative;
  height: 18px;
  margin: 14px 0;
}

.md-break::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 1px dashed var(--border);
}

.md-break::after {
  content: attr(data-label);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--panel);
  padding: 0 8px;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.tips-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.tip-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.tip-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--accent-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 16px;
}

.tip-text {
  flex: 1;
}

.tip-text strong {
  display: block;
  color: var(--text);
  margin-bottom: 4px;
  font-size: 14px;
}

.tip-text p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.tips-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.tips-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
}

.tips-checkbox input[type="checkbox"] {
  cursor: pointer;
}

@media (max-width: 1200px) {
  .content {
    grid-template-columns: 1fr;
  }

  .app {
    grid-template-columns: 220px 1fr;
  }

  .resizer {
    display: none;
  }
}

/* ===== PRINT PREVIEW STYLES ===== */

.print-preview-body {
  height: 100%;
  background: linear-gradient(180deg, #edf2f5 0%, #e3eaef 100%);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.print-preview-scroll {
  flex: 1 1 auto;
  overflow: auto;
  padding: 24px;
  min-height: 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.print-preview-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: white;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  min-height: 56px;
  box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
  z-index: 10;
  position: relative;
}

.print-content {
  background: transparent;
  width: 100%;
  max-width: none;
}

.loading-preview,
.error-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--muted);
  text-align: center;
  gap: 16px;
}

.error-preview {
  color: #d32f2f;
}

.error-preview i {
  font-size: 48px;
}

.error-detail {
  font-size: 12px;
  color: var(--muted);
  font-family: monospace;
  margin-top: 8px;
}

.print-preview-warning {
  margin: 12px auto 0;
  max-width: 640px;
  padding: 10px 14px;
  background: #fff4d6;
  border: 1px solid #f0c36d;
  color: #5a3a00;
  border-radius: 6px;
  font-size: 13px;
  text-align: center;
}

.print-page-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: 16px;
}

.print-page-nav .icon-sm {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 4px;
  transition: background 0.15s;
  font-size: 14px;
}

.print-page-nav .icon-sm:hover:not(:disabled) {
  background: var(--accent-light);
}

.print-page-nav .icon-sm:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.page-info {
  font-size: 13px;
  color: var(--muted);
  min-width: 100px;
  text-align: center;
}

.primary-btn {
  background: var(--accent);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s;
}

.primary-btn:hover {
  background: var(--accent-strong);
}

.primary-btn i {
  font-size: 16px;
}


/* Paged.js custom styles */
.pagedjs_pages {
  --print-preview-scale: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
  gap: 24px;
  padding: 12px 0 28px;
  width: 100%;
  transform-origin: top center;
}

.pagedjs_page {
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.14);
  background: white;
  page-break-after: always;
  flex: 0 0 auto;
  border-radius: 2px;
}

/* Show Paged.js margin boxes in screen view */
@media screen {
  .pagedjs_margin-top,
  .pagedjs_margin-bottom,
  .pagedjs_margin-left,
  .pagedjs_margin-right,
  .pagedjs_margin-top-left,
  .pagedjs_margin-top-center,
  .pagedjs_margin-top-right,
  .pagedjs_margin-bottom-left,
  .pagedjs_margin-bottom-center,
  .pagedjs_margin-bottom-right,
  .pagedjs_margin-left-top,
  .pagedjs_margin-left-middle,
  .pagedjs_margin-left-bottom,
  .pagedjs_margin-right-top,
  .pagedjs_margin-right-middle,
  .pagedjs_margin-right-bottom {
    display: block !important;
    visibility: visible !important;
  }
  
  .pagedjs_margin-content {
    display: block !important;
    visibility: visible !important;
  }
}

/* Print styles for actual printing */
@media print {
  body {
    background: white;
  }

  .sidebar,
  .editor,
  .editor-resizer,
  .tree-resizer,
  .section-header,
  .ai-chat-body,
  .preview-body,
  #aiChatPanel,
  .print-preview-controls {
    display: none !important;
  }

  #previewPanel {
    display: block !important;
  }

  .right-pane,
  .right-body,
  .panel,
  .print-preview-body,
  .print-preview-scroll {
    height: auto !important;
    min-height: 0 !important;
    overflow: visible !important;
  }

  .print-preview-body {
    display: block !important;
    background: none;
    padding: 0;
  }

  .pagedjs_page {
    margin: 0;
    box-shadow: none;
    page-break-after: always;
  }
}

/* ===== LAYOUT MODAL STYLES ===== */

.layout-modal-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background: var(--bg);
  gap: 0;
}

.layout-tabs {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 10px;
  background: var(--hover);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
}

.layout-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s ease;
  white-space: nowrap;
  text-align: left;
}

.layout-tab:hover {
  color: var(--text);
  background: rgba(0, 0, 0, 0.04);
}

.layout-tab.active {
  color: #0f172a;
  background: #dbeafe;
  box-shadow: 0 2px 4px rgba(15, 23, 42, 0.15);
}

.layout-tab i {
  font-size: 15px;
  width: 20px;
  text-align: center;
}

.layout-tab-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.1;
}

.layout-tab-meta {
  font-size: 10px;
  color: var(--text-muted);
  opacity: 0.9;
  background: rgba(0, 0, 0, 0.06);
  padding: 2px 6px;
  border-radius: 999px;
  width: fit-content;
}

.layout-tab.active .layout-tab-meta {
  color: #0f172a;
  background: rgba(15, 23, 42, 0.08);
}

.layout-content {
  overflow-y: auto;
  padding: 16px 18px;
  background: var(--bg);
}

.layout-page-grid,
.layout-structure-grid,
.layout-typography-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.layout-column {
  display: grid;
  gap: 12px;
  align-content: start;
}

.layout-hidden-control {
  display: none;
}

@media (max-width: 1200px) {
  .layout-page-grid,
  .layout-structure-grid,
  .layout-typography-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .layout-page-grid,
  .layout-structure-grid,
  .layout-typography-grid {
    grid-template-columns: 1fr;
  }
}

.layout-content::-webkit-scrollbar {
  width: 8px;
}

.layout-content::-webkit-scrollbar-track {
  background: transparent;
}

.layout-content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.layout-content::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.layout-tabs::-webkit-scrollbar {
  width: 6px;
}

.layout-tabs::-webkit-scrollbar-track {
  background: transparent;
}

.layout-tabs::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 3px;
}

.layout-tabs::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.3);
}

.layout-tab-content {
  display: none;
}

.layout-tab-content.active {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  grid-auto-flow: dense;
  animation: fadeIn 0.15s ease;
  align-items: start;
}

.layout-tab-content[data-content="page"].active,
.layout-tab-content[data-content="structure"].active,
.layout-tab-content[data-content="typography"].active {
  display: block;
}

.layout-tab-content[data-content="page"],
.layout-tab-content[data-content="structure"],
.layout-tab-content[data-content="spacing"] {
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px;
}

.layout-tab-content[data-content="page"] .layout-form-section,
.layout-tab-content[data-content="structure"] .layout-form-section,
.layout-tab-content[data-content="spacing"] .layout-form-section {
  padding: 10px;
}

.layout-tab-content[data-content="page"] .layout-form-row,
.layout-tab-content[data-content="structure"] .layout-form-row,
.layout-tab-content[data-content="spacing"] .layout-form-row {
  gap: 8px;
  margin-bottom: 8px;
}

.layout-tab-content[data-content="structure"] .layout-form-group {
  margin-bottom: 8px;
}

.layout-tab-content[data-content="typography"] {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.layout-tab-content[data-content="typography"] .layout-form-section {
  padding: 14px;
}

.layout-tab-content[data-content="headers"],
.layout-tab-content[data-content="media"] {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.layout-tab-content h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  grid-column: 1 / -1;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}

.layout-tab-content h4 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.layout-tab-content h4::before {
  content: '';
  width: 4px;
  height: 14px;
  background: var(--link);
  border-radius: 2px;
}

.layout-tab-content h5 {
  margin: 10px 0 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.layout-form-section {
  padding: 12px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  break-inside: avoid;
  transition: all 0.2s ease;
}

.layout-form-section:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  border-color: var(--link);
}

.layout-form-group {
  margin-bottom: 10px;
}

.layout-form-group:last-child {
  margin-bottom: 0;
}

.layout-form-group > label:not(label:has(input[type="checkbox"])) {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
  text-transform: none;
  opacity: 0.9;
}

.layout-form-group label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
  padding: 8px 10px;
  transition: all 0.2s;
  border-radius: 4px;
  margin: -4px -10px;
}

.layout-form-group label:has(input[type="checkbox"]):hover {
  background: rgba(66, 153, 225, 0.08);
  color: var(--link);
}

.layout-form-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--link);
  flex-shrink: 0;
}

.layout-form-group input[type="text"],
.layout-form-group input[type="number"],
.layout-form-group input[type="color"],
.layout-form-group select {
  width: 100%;
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: white;
  color: var(--text);
  font-size: 12px;
  font-family: inherit;
  transition: all 0.2s ease;
}

.layout-form-group input[type="text"]:hover,
.layout-form-group input[type="number"]:hover,
.layout-form-group select:hover {
  border-color: var(--link);
  background: var(--bg);
}

.layout-form-group input[type="text"]:hover,
.layout-form-group input[type="number"]:hover,
.layout-form-group select:hover {
  border-color: var(--text-muted);
}

.layout-form-group input[type="color"] {
  height: 32px;
  cursor: pointer;
  padding: 2px;
}

.layout-form-group input:focus,
.layout-form-group select:focus {
  outline: none;
  border-color: var(--link);
  box-shadow: 0 0 0 4px rgba(66, 153, 225, 0.15);
  background: white;
}

.layout-form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}

.layout-form-row.row-4 {
  grid-template-columns: repeat(4, 1fr);
}

.layout-form-row.row-3 {
  grid-template-columns: repeat(3, 1fr);
}

.layout-form-row:last-child {
  margin-bottom: 0;
}

.layout-form-row .layout-form-group {
  margin-bottom: 0;
}

.layout-info {
  grid-column: 1 / -1;
  padding: 10px 12px 10px 44px;
  background: linear-gradient(135deg, rgba(66, 153, 225, 0.08), rgba(66, 153, 225, 0.03));
  border: 1px solid rgba(66, 153, 225, 0.25);
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--text-muted);
  position: relative;
  margin-top: 6px;
}

.layout-info::before {
  content: '\f05a';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  color: var(--link);
  opacity: 0.7;
}

.layout-info strong {
  color: var(--text);
  font-weight: 600;
}

.layout-info code {
  padding: 3px 8px;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 4px;
  font-size: 12px;
  color: var(--text);
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
}

.layout-tables-toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  align-items: stretch;
  grid-column: 1 / -1;
}

.layout-tables-toolbar select {
  flex: 1;
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: white;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  transition: all 0.2s;
}

.layout-tables-toolbar select:hover {
  border-color: var(--link);
  background: var(--bg);
}

.layout-tables-toolbar button {
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: white;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.layout-tables-toolbar button:hover {
  background: var(--link);
  color: white;
  border-color: var(--link);
}

.layout-modal-footer {
  display: flex;
  gap: 10px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: var(--bg);
  box-shadow: 0 -1px 6px rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
}

.layout-footer-left,
.layout-footer-right {
  display: flex;
  gap: 8px;
  align-items: center;
}

.layout-footer-right {
  margin-left: auto;
}

.layout-modal-footer button {
  min-height: 34px;
}

.layout-footer-left .btn-secondary {
  background: linear-gradient(135deg, #f7fafc, #edf2f7);
  border: 2px solid var(--border);
  font-size: 11px;
  padding: 6px 10px;
}

.layout-footer-left .btn-secondary:hover {
  background: linear-gradient(135deg, var(--link), #3182ce);
  color: white;
  border-color: var(--link);
}

.layout-modal-footer button {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 7px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.btn-secondary {
  background: white;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg);
  border-color: var(--link);
  color: var(--link);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--link), #3182ce);
  color: white;
  box-shadow: 0 4px 12px rgba(66, 153, 225, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #3182ce, #2c5aa0);
  box-shadow: 0 6px 16px rgba(66, 153, 225, 0.5);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-danger {
  background: #dc3545;
  color: white;
}

.btn-danger:hover {
  background: #c82333;
}

/* ===== AI CHAT STYLES ===== */

.ai-chat-body {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ai-chat-message {
  display: flex;
  gap: 12px;
  max-width: 85%;
  animation: messageSlideIn 0.2s ease-out;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ai-chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.ai-chat-message.assistant {
  align-self: flex-start;
}

.ai-chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
}

.ai-chat-message.user .ai-chat-avatar {
  background: var(--accent);
  color: white;
}

.ai-chat-message.assistant .ai-chat-avatar {
  background: var(--surface);
  color: var(--accent);
  border: 2px solid var(--accent-light);
}

.ai-chat-bubble {
  padding: 12px 16px;
  border-radius: 12px;
  word-wrap: break-word;
  position: relative;
}

.ai-chat-message.user .ai-chat-bubble {
  background: var(--accent);
  color: white;
  border-bottom-right-radius: 4px;
}

.ai-chat-message.assistant .ai-chat-bubble {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.ai-chat-bubble h1,
.ai-chat-bubble h2,
.ai-chat-bubble h3 {
  margin-top: 12px;
  margin-bottom: 8px;
  font-size: 1.1em;
}

.ai-chat-bubble h1:first-child,
.ai-chat-bubble h2:first-child,
.ai-chat-bubble h3:first-child {
  margin-top: 0;
}

.ai-chat-bubble code {
  background: rgba(0, 0, 0, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

.ai-chat-bubble pre {
  background: rgba(0, 0, 0, 0.05);
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 8px 0;
}

.ai-chat-bubble pre code {
  background: none;
  padding: 0;
}

.ai-chat-action {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  font-size: 12px;
  color: var(--muted);
}

.ai-chat-action-buttons {
  margin-top: 8px;
  display: flex;
  gap: 8px;
}

.ai-chat-action-btn {
  background: var(--accent-light);
  color: var(--accent);
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ai-chat-action-btn:hover {
  background: var(--accent);
  color: white;
}

.ai-chat-input-area {
  padding: 16px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

.ai-chat-input {
  flex: 1;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  min-height: 50px;
  max-height: 150px;
  transition: border-color 0.15s;
}

.ai-chat-input:focus {
  outline: none;
  border-color: var(--accent);
}

.ai-chat-input-area .primary-btn {
  flex-shrink: 0;
  height: 50px;
}

.ai-chat-loading {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  padding: 12px 16px;
}

.ai-chat-loading i {
  animation: spin 1s linear infinite;
}

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

.ai-chat-error {
  padding: 12px 16px;
  background: #ffebee;
  border: 1px solid #ef5350;
  color: #c62828;
  border-radius: 8px;
  font-size: 14px;
}

.ai-chat-welcome {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}

.ai-chat-welcome i {
  font-size: 48px;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.ai-chat-welcome h3 {
  margin: 16px 0 8px;
  font-size: 18px;
  color: var(--text);
}

.ai-chat-welcome p {
  font-size: 14px;
  line-height: 1.6;
}

#aiChatToggle.active {
  background: var(--accent-light);
  color: var(--accent);
}

/* ===== COLLAB STYLES ===== */

.collab-presence-container {
  display: flex;
  align-items: center;
  gap: 4px;
}

.presence-avatar,
.presence-more {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  border: 2px solid var(--panel);
  box-shadow: 0 2px 6px rgba(34, 83, 107, 0.15);
  margin-left: -6px;
}

.collab-presence-container .presence-avatar:first-child,
.collab-presence-container .presence-more:first-child {
  margin-left: 0;
}

.presence-avatar {
  color: white;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.presence-avatar:hover {
  transform: translateY(-1px) scale(1.04);
  box-shadow: 0 12px 24px rgba(34, 83, 107, 0.2);
}

.presence-more {
  background: var(--accent-light);
  color: var(--accent);
}

#passwordDialog {
  width: min(520px, calc(100vw - 32px));
}

.password-dialog-content {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.password-input-section,
.permissions-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
}

.password-input-section label,
.permissions-block h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.password-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 12px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

.password-input:focus,
.collab-thread-select:focus,
.collab-chat-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 137, 207, 0.14);
}

.error-text {
  font-size: 12px;
  color: #c62828;
}

.password-dialog-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.collab-chat-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.collab-thread-select {
  min-width: 150px;
  max-width: 210px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  background: var(--panel);
  color: var(--text);
}

.collab-chat-body {
  height: 100%;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at top right, rgba(0, 137, 207, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(249, 252, 254, 0.96));
}

.collab-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.collab-chat-message {
  align-self: flex-start;
  width: min(100%, 460px);
  padding: 12px 14px;
  border: 1px solid rgba(0, 137, 207, 0.14);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 24px rgba(34, 83, 107, 0.08);
}

.collab-chat-author {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}

.collab-chat-text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}

.collab-chat-time {
  margin-top: 8px;
  font-size: 11px;
  color: var(--muted);
}

.collab-chat-input-area {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  padding: 16px;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(8px);
}

.collab-chat-input {
  flex: 1;
  min-height: 50px;
  max-height: 150px;
  resize: vertical;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
}

.collab-chat-input-area .primary-btn {
  height: 50px;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .collab-thread-select {
    min-width: 120px;
    max-width: 160px;
  }

  .collab-chat-input-area,
  .password-dialog-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .collab-chat-input-area .primary-btn,
  .password-dialog-actions .primary-btn,
  .password-dialog-actions .btn-secondary {
    width: 100%;
  }
}
/* Mermaid Editor Modal */
.mermaid-editor-body {
  padding: 0;
  height: 700px;
  overflow: hidden;
}

.mermaid-editor-container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 0;
  height: 100%;
}

.mermaid-canvas-panel,
.mermaid-preview-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-right: 1px solid var(--border-color);
  position: relative;
}

.mermaid-preview-panel {
  border-right: none;
}

.mermaid-editor-toolbar,
.mermaid-preview-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.mermaid-preview-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.mermaid-auto-save {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
}

.mermaid-toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  margin: 0 4px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 16px;
}

.btn-icon:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.mermaid-select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  min-width: 150px;
}

.mermaid-canvas {
  flex: 1;
  background: white;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 20px;
  overflow: auto;
}

.mermaid-canvas.connecting {
  cursor: pointer;
}

.mermaid-canvas .mermaid {
  transform-origin: top left;
}

.mermaid-canvas .node.selected rect,
.mermaid-canvas .node.selected polygon,
.mermaid-canvas .node.selected circle,
.mermaid-canvas .node.selected ellipse,
.mermaid-canvas .node.selected path {
  stroke: var(--accent) !important;
  stroke-width: 2px !important;
}

.mermaid-canvas-help {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.95);
  padding: 12px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  font-size: 11px;
  line-height: 1.6;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  z-index: 10;
  pointer-events: none;
}

.mermaid-canvas-help div {
  margin-bottom: 4px;
}

.mermaid-canvas-help strong {
  color: var(--text);
  font-weight: 600;
}

.mermaid-properties {
  padding: 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mermaid-properties-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.mermaid-property {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.mermaid-property-input,
.mermaid-property-select,
.mermaid-property-color {
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
}

.mermaid-property-color {
  padding: 2px 4px;
  height: 36px;
}

.mermaid-property-input:disabled,
.mermaid-property-select:disabled,
.mermaid-property-color:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.mermaid-preview-content {
  flex: 1;
  padding: 20px;
  background: white;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mermaid-preview-content .mermaid {
  max-width: 100%;
}

.CodeMirror-gutters {
  cursor: pointer;
}

/* Layout Editor Modal */
.modal-xlarge {
  width: min(1100px, 90vw);
  height: min(750px, 92vh);
  max-height: calc(100vh - 40px);
}

#settingsModal {
  height: min(640px, 92vh);
}

#settingsModal .modal-body {
  padding: 18px 20px;
}

.layout-editor-body {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 0;
  overflow: hidden;
}

.layout-editor-container {
  display: flex;
  flex: 1;
  gap: 0;
  overflow: hidden;
}

.layout-editor-sidebar {
  width: 200px;
  min-width: 200px;
  background: var(--panel-light);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.layout-selector {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.layout-selector label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.layout-editor-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
}

.layout-editor-select:focus {
  outline: none;
  border-color: var(--primary);
}

.layout-editor-tabs {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 8px;
}

.layout-editor-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  transition: all 0.2s ease;
}

.layout-editor-tab:hover {
  background: var(--panel);
}

.layout-editor-tab.active {
  background: var(--primary);
  color: white;
}

.layout-editor-tab i {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.layout-editor-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px 18px;
  background: var(--bg);
}

.layout-editor-tab-content {
  display: none;
}

.layout-editor-tab-content.active {
  display: block;
}

.layout-editor-tab-content h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}

.layout-editor-tab-content h4 {
  margin: 16px 0 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.layout-editor-tab-content h4::before {
  content: '';
  width: 4px;
  height: 14px;
  background: var(--link);
  border-radius: 2px;
}

.layout-editor-section {
  margin-bottom: 16px;
  padding: 12px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  transition: all 0.2s ease;
}

.layout-editor-section:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  border-color: var(--link);
}

/* Text Editor Grid Layout */
.layout-text-editor-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px;
  height: 100%;
}

/* Element Selection List (Left) */
.layout-text-element-list {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  overflow-y: auto;
  max-height: 580px;
}

.layout-text-element-group {
  margin-top: 12px;
}

.layout-text-element-group:first-child {
  margin-top: 0;
}

.layout-text-element-group {
  margin-bottom: 12px;
}

.layout-text-element-group:last-child {
  margin-bottom: 0;
}

.layout-text-element-group-header {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text);
  padding: 8px 12px;
  margin-bottom: 6px;
  letter-spacing: 0.8px;
  background: var(--hover-bg);
  border-radius: 4px;
  border-left: 3px solid var(--accent);
}

.layout-text-element-item {
  padding: 8px 12px;
  margin-bottom: 2px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s ease;
  color: var(--text);
  margin-left: 4px;
}

.layout-text-element-item:hover {
  background: var(--hover-bg);
}

.layout-text-element-item.active {
  background: var(--accent);
  color: white;
  font-weight: 600;
  box-shadow: inset 3px 0 0 0 rgba(255, 255, 255, 0.35);
}

/* Attribute Box (Right) */
.layout-text-attributes {
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  overflow-y: auto;
  max-height: 580px;
}

/* Preview Divider */
.layout-preview-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0 16px 0;
}

/* Preview Text Box */
.layout-preview-text {
  padding: 0;
}

.preview-para {
  margin: 0 0 12px 0;
}

.preview-para:last-child {
  margin-bottom: 0;
}

/* Default styles - will be overridden by inline styles from JS */
.preview-para-1,
.preview-para-3 {
  color: var(--text-muted);
  font-size: 12px;
}

.preview-para-2 {
  transition: all 0.3s ease;
}

#attr-preview-content ul,
#attr-preview-content ol {
  margin: 0;
  padding-left: 0;
  list-style-position: outside;
}

#attr-preview-content li {
  transition: all 0.3s ease;
}

/* Style + Align + Color Row */
.layout-style-align-color-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.layout-style-align-color-row .layout-form-group {
  display: flex;
  flex-direction: column;
}

.layout-style-align-color-row .layout-form-group label {
  margin-bottom: 6px;
}

/* Toggle Buttons for Font Styles */
.layout-toggle-buttons {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.layout-toggle-btn {
  width: 36px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 14px;
}

.layout-toggle-btn:hover {
  background: var(--hover-bg);
  border-color: var(--link);
}

.layout-toggle-btn.active {
  background: var(--accent) !important;
  color: white !important;
  border-color: var(--accent) !important;
}

.layout-toggle-btn i {
  pointer-events: none;
}

/* Checkbox Wrapper */
.layout-checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
}

.layout-form-row > .layout-checkbox-wrapper {
  grid-column: 1 / -1;
}

.layout-checkbox-wrapper input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  cursor: pointer;
  flex-shrink: 0;
}

.layout-checkbox-wrapper label {
  margin: 0;
  cursor: pointer;
  user-select: none;
}

/* Color Picker with Palette */
.layout-color-picker {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 4px;
}

.layout-color-picker input[type="color"] {
  width: 36px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  padding: 2px;
}

.layout-color-palette {
  display: flex;
  gap: 4px;
}

.color-swatch {
  width: 24px;
  height: 24px;
  border: 1px solid var(--border);
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
}

.color-swatch:hover {
  transform: scale(1.15);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.layout-editor-lists-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (max-width: 1000px) {
  .layout-editor-lists-grid {
    grid-template-columns: 1fr;
  }
  
  .layout-text-editor-grid {
    grid-template-columns: 1fr;
  }
  
  .layout-text-element-list {
    max-height: 200px;
  }
}

.layout-list-level {
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 10px;
  transition: all 0.2s ease;
}

.layout-list-level:hover {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  border-color: var(--link);
}

.layout-list-level-header {
  font-size: 11px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.9;
}

.layout-editor-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.layout-editor-footer .btn-secondary {
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: white;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.layout-editor-footer .btn-secondary:hover {
  background: var(--bg);
  border-color: var(--text-muted);
}

.layout-editor-footer .btn-primary {
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  background: var(--link);
  color: white;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

#layoutEditorSave {
  min-width: 132px;
  justify-content: center;
  background: linear-gradient(135deg, #0f7dc2, #0869a8) !important;
  background-color: #0f7dc2 !important;
  color: #ffffff !important;
  border: 1px solid rgba(0, 0, 0, 0.05);
  opacity: 1;
  appearance: none;
  -webkit-appearance: none;
  box-shadow: 0 4px 12px rgba(15, 125, 194, 0.28);
}

#layoutEditorSave i,
#layoutEditorSave span {
  color: #ffffff !important;
  fill: #ffffff;
}

#layoutEditorSave:hover {
  background: linear-gradient(135deg, #1291df, #0f7dc2) !important;
}

#layoutEditorSave:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.layout-editor-footer .btn-primary:hover {
  background: var(--link-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(66, 153, 225, 0.3);
}

/* Reuse existing layout-form-row and layout-form-group styles */
.layout-editor-body .layout-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.layout-editor-body .layout-form-row.row-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.layout-editor-body .layout-form-row.row-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.layout-editor-body .layout-form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  margin-bottom: 10px;
}

.layout-editor-body .layout-form-group:last-child {
  margin-bottom: 0;
}

.layout-editor-body .layout-form-group > label:not(label:has(input[type="checkbox"])) {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
  text-transform: none;
  opacity: 0.9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layout-editor-body .layout-form-group input,
.layout-editor-body .layout-form-group select {
  width: 100%;
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  background: white;
  border-radius: 6px;
  font-size: 12px;
  color: var(--text);
  min-width: 0;
  transition: all 0.2s ease;
}

.layout-editor-body .layout-form-group input:hover,
.layout-editor-body .layout-form-group select:hover {
  border-color: var(--text-muted);
}

.layout-editor-body .layout-form-group input:focus,
.layout-editor-body .layout-form-group select:focus {
  outline: none;
  border-color: var(--link);
  box-shadow: 0 0 0 4px rgba(66, 153, 225, 0.15);
  background: white;
}

.layout-editor-body .layout-form-group input[type="color"] {
  height: 32px;
  cursor: pointer;
  padding: 2px;
}
/* Page & Table Settings */
.layout-page-settings,
.layout-table-settings {
  padding: 20px;
  max-width: 800px;
}

.layout-settings-section {
  margin-bottom: 32px;
}

.layout-settings-section:last-child {
  margin-bottom: 0;
}

.layout-settings-heading {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 16px 0;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.layout-settings-section .layout-form-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.layout-settings-section .layout-form-row:last-child {
  margin-bottom: 0;
}

.layout-settings-section .layout-form-row label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.layout-form-input,
.layout-form-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  font-family: inherit;
  background: var(--bg);
  color: var(--text);
  transition: all 0.2s ease;
}

.layout-form-input:focus,
.layout-form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.15);
}

.layout-form-color {
  width: 80px;
  height: 36px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  background: var(--bg);
  transition: all 0.2s ease;
}

.layout-form-color:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.15);
}
/* Page Tab Specific Layouts */
.layout-page-size-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  align-items: flex-start;
}

.layout-page-size-select {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.layout-page-size-select label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.layout-page-orientation {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.layout-page-orientation label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.layout-orientation-buttons {
  display: flex;
  gap: 6px;
}

.layout-orientation-btn {
  flex: 1;
  padding: 10px;
  border: 2px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.layout-orientation-btn:hover {
  border-color: var(--link);
  background: var(--hover-bg);
}

.layout-orientation-btn.active {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.layout-orientation-btn i {
  pointer-events: none;
}

/* Margins Row */
.layout-margins-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.layout-margins-row > label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.layout-margins-inputs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

/* Header/Footer Content */
.layout-header-footer-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.layout-header-footer-content > label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.layout-hf-inputs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

/* Variables Info Box */
.layout-variables-info {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(66, 153, 225, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

.layout-variables-info i {
  color: var(--accent);
  font-size: 14px;
  margin-top: 2px;
  flex-shrink: 0;
}

.layout-variables-info code {
  background: rgba(0, 0, 0, 0.1);
  padding: 2px 5px;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  font-size: 11px;
}

/* Columns Row */
.layout-columns-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.layout-columns-row .layout-form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.layout-columns-row .layout-form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

/* Page Tab Grid Blocks */
.layout-page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.layout-page-hf-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.layout-page-block {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-light);
}

.layout-page-block label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.layout-page-block .layout-form-row {
  margin-bottom: 10px;
}

.layout-page-block .layout-checkbox-wrapper {
  padding: 6px 0;
}

/* Table Tab Compact Layout */
.layout-table-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.layout-table-editor-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px;
  height: 100%;
}

.layout-table-sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}

.layout-table-selector-panel {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
}

.layout-table-selector-panel label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
}

.layout-table-section-list {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  overflow-y: auto;
  max-height: 580px;
}

.layout-table-name-group {
  min-width: 0;
}

.layout-table-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.layout-table-name-row .layout-form-input {
  flex: 1;
}

.layout-table-delete-icon {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.layout-table-section-item {
  padding: 8px 12px;
  margin-bottom: 2px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s ease;
  color: var(--text);
  margin-left: 4px;
}

.layout-table-section-item:hover {
  background: var(--hover-bg);
}

.layout-table-section-item.active {
  background: var(--accent);
  color: white;
  font-weight: 600;
  box-shadow: inset 3px 0 0 0 rgba(255, 255, 255, 0.35);
}

.layout-table-section-content {
  min-height: 0;
}

.layout-table-section {
  display: none;
}

.layout-table-section.active {
  display: block;
}

.layout-table-dedicated-content {
  display: none;
}

.layout-table-dedicated-content.active {
  display: block;
}

.layout-table-block {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-light);
}

.layout-table-text-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.layout-table-style-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}

.layout-table-style-row .layout-form-group {
  flex: 1;
}

.layout-form-row.row-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.layout-table-padding-row {
  margin-top: 12px;
}

.layout-table-padding-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

/* Settings Grid Split (Two Columns) */
.settings-grid-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
}

.settings-editor-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px 20px;
  margin-bottom: 14px;
}

.settings-language-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.settings-language-row label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.settings-language-row .setting-select {
  width: 100%;
  max-width: 100%;
}

.settings-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.settings-column-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px 0;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.settings-grid-split .setting {
  padding: 2px 0;
  gap: 10px;
}

.settings-grid-split .setting-title {
  font-size: 12px;
  line-height: 1.35;
}

.settings-grid-split .setting-select-only .setting-control {
  margin-top: 4px;
}

.settings-grid-split .setting-select {
  padding: 6px 8px;
  font-size: 12px;
}

.setting-disabled {
  opacity: 0.45;
}

#settingsModal .danger-zone {
  margin-top: 14px;
  padding: 14px 16px;
}

#settingsModal .danger-zone h3 {
  margin-bottom: 10px;
  font-size: 14px;
}

#settingsModal .danger-zone-desc {
  font-size: 12px;
  line-height: 1.45;
}

.setting-select-only {
  flex-direction: column;
  align-items: flex-start !important;
}

@media (max-width: 900px) {
  .settings-editor-top,
  .settings-grid-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .storage-action-list-inline {
    grid-template-columns: 1fr;
  }
}

.setting-select-only .setting-text {
  width: 100%;
}

.setting-select-only .setting-control {
  width: 100%;
  margin-top: 8px;
}

/* CSS Tab in Layout Modal */
.layout-css-editor {
  padding: 20px;
  max-width: 1000px;
}

.layout-css-description {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.layout-css-textarea {
  width: 100%;
  min-height: 400px;
  padding: 12px;
  font-family: 'Courier New', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.5;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  resize: vertical;
  transition: all 0.2s ease;
}

.layout-css-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.15);
}

/* Image Drag & Drop Feedback */
.editor.drag-over {
  background: var(--accent-light) !important;
  border: 2px dashed var(--accent) !important;
  box-shadow: inset 0 0 0 2px var(--accent);
}