styles.css

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

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

.container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background-color: #fff;
  border-bottom: 1px solid #e0e0e0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.header-center {
  display: flex;
  justify-content: center;
  flex: 0 0 auto;
  margin: 0 24px;
}

.current-file-path {
  font-size: 11px;
  color: #777;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 500px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  justify-content: flex-end;
}

header h1 {
  font-size: 16px;
  font-weight: 600;
  color: #444;
  margin-right: 8px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-icon-btn {
  padding: 6px;
  background-color: transparent;
  color: #555;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s, color 0.15s;
}

.toolbar-icon-btn:hover:not(:disabled) {
  background-color: #e8e8e8;
  color: #333;
}

.toolbar-icon-btn:disabled {
  color: #ccc;
  cursor: not-allowed;
}

.toolbar-icon-btn.active {
  background-color: #e0e0e0;
  color: #333;
}

.toolbar-icon-btn svg {
  width: 18px;
  height: 18px;
}

.toolbar-separator {
  width: 1px;
  height: 24px;
  background-color: #ddd;
  margin: 0 4px;
}

/* Inline Formatting Toolbar in Header */
.formatting-toolbar-inline {
  display: flex;
  align-items: center;
  gap: 2px;
}

.fmt-btn-inline {
  padding: 4px 8px;
  background-color: transparent;
  color: #555;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  min-width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.1s, color 0.1s;
}

.fmt-btn-inline:hover {
  background-color: #e8e8e8;
  color: #333;
}

.fmt-btn-inline:active {
  background-color: #ddd;
}

.fmt-btn-inline.active {
  background-color: #e0e0e0;
  color: #111;
}

.fmt-btn-inline svg {
  width: 14px;
  height: 14px;
}

.fmt-heading-btn {
  font-size: 11px;
  font-weight: 600;
  min-width: 24px;
  padding: 4px 5px;
}

.fmt-separator-inline {
  width: 1px;
  height: 18px;
  background-color: #ddd;
  margin: 0 4px;
}

.toggle-group {
  display: flex;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
}

.toggle-btn {
  padding: 6px 14px !important;
  background-color: #f5f5f5 !important;
  color: #555 !important;
  border: none !important;
  border-radius: 0 !important;
  border-right: 1px solid #ddd !important;
  font-size: 13px;
}

.toggle-btn:last-child {
  border-right: none !important;
}

.toggle-btn:hover {
  background-color: #e8e8e8 !important;
}

.toggle-btn.active {
  background-color: #333 !important;
  color: white !important;
}

/* Floating Formatting Toolbar */
.formatting-toolbar {
  position: fixed;
  z-index: 10005;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
  padding: 6px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  pointer-events: none;
}

.formatting-toolbar.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.formatting-toolbar.hidden {
  display: none;
}

.fmt-row {
  display: flex;
  align-items: center;
  gap: 1px;
}

.fmt-divider {
  height: 1px;
  background-color: #e8e8e8;
  margin: 4px 0;
}

.fmt-btn {
  padding: 5px 8px;
  background-color: transparent;
  color: #555;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  min-width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.1s, color 0.1s;
}

.fmt-btn:hover {
  background-color: #f0f0f0;
  color: #333;
}

.fmt-btn:active {
  background-color: #e0e0e0;
}

.fmt-btn.active {
  background-color: #e8f0fe;
  color: #1a73e8;
}

.fmt-btn.active:hover {
  background-color: #d2e3fc;
}

.fmt-btn svg {
  width: 14px;
  height: 14px;
}

.fmt-separator {
  width: 1px;
  height: 18px;
  background-color: #e0e0e0;
  margin: 0 4px;
}

/* AI buttons */
.fmt-ai-row {
  gap: 1px;
}

.fmt-ai-btn {
  font-size: 10px;
  padding: 3px 6px;
  min-width: auto;
  height: 22px;
  color: #666;
}

.fmt-ai-btn:hover {
  color: #1a73e8;
  background-color: #e8f0fe;
}

.fmt-ai-btn svg {
  width: 11px;
  height: 11px;
}

.fmt-ai-primary {
  gap: 3px;
  color: #1a73e8;
  font-weight: 600;
  background-color: #e8f0fe;
  padding: 3px 8px;
}

.fmt-ai-primary:hover {
  background-color: #d2e3fc;
}

/* Heading Dropdown */
.fmt-dropdown {
  position: relative;
}

.fmt-dropdown .fmt-btn {
  display: flex;
  align-items: center;
  gap: 2px;
  padding-right: 6px;
}

.fmt-heading-label {
  font-weight: 600;
}

.fmt-dropdown-arrow {
  opacity: 0.6;
  transition: transform 0.15s;
}

.fmt-dropdown.open .fmt-dropdown-arrow {
  transform: rotate(180deg);
}

.fmt-dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  padding: 4px;
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s, visibility 0.15s;
  z-index: 10;
}

.fmt-dropdown.open .fmt-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.fmt-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.12s;
}

.fmt-dropdown-item:hover {
  background-color: #f0f0f0;
}

.fmt-dropdown-item.active {
  background-color: #e8f0fe;
}

.fmt-dropdown-item.active:hover {
  background-color: #d2e3fc;
}

.heading-preview {
  font-weight: 700;
  color: #333;
  min-width: 28px;
}

.heading-preview.h1 {
  font-size: 18px;
}

.heading-preview.h2 {
  font-size: 16px;
}

.heading-preview.h3 {
  font-size: 14px;
}

.heading-desc {
  font-size: 12px;
  color: #666;
}

#file-name {
  color: #666;
  font-size: 13px;
  margin-left: auto;
}

main {
  flex: 1;
  overflow: hidden;
  display: flex;
}

/* Sidebar */
.sidebar {
  width: 200px;
  min-width: 200px;
  background-color: #f0f0f0;
  border-right: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
  transition: width 0.2s, min-width 0.2s;
}

.sidebar.collapsed {
  width: 36px;
  min-width: 36px;
}

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

.sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 10px 6px;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid #e0e0e0;
  background-color: #e8e8e8;
}

.sidebar-title {
  font-size: 12px;
  font-weight: 600;
  color: #555;
  text-transform: uppercase;
}

.sidebar-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 6px;
  font-size: 10px;
  color: #666;
  border-radius: 3px;
}

.sidebar-toggle:hover {
  background-color: #ddd;
}

.sidebar.collapsed .sidebar-toggle {
  transform: rotate(180deg);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
}

/* Sidebar Sections */
.sidebar-section {
  border-bottom: 1px solid #e0e0e0;
}

.sidebar-section-header {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
  gap: 6px;
}

.sidebar-section-header:hover {
  background-color: #e0e0e0;
}

.sidebar-section-title {
  font-size: 11px;
  font-weight: 600;
  color: #555;
  text-transform: uppercase;
}

.section-chevron {
  transition: transform 0.2s;
  color: #666;
  flex-shrink: 0;
}

.sidebar-section.collapsed .section-chevron {
  transform: rotate(-90deg);
}

.sidebar-section-content {
  overflow: hidden;
}

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

.file-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.file-list li {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
  color: #333;
  border-left: 3px solid transparent;
}

.file-list li:hover {
  background-color: #e0e0e0;
}

.file-list li.active {
  background-color: #ddd;
  border-left-color: #0066cc;
}

.file-list li .file-icon {
  margin-right: 8px;
  font-size: 14px;
}

.file-list li .file-info {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.file-list li .file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-list li .file-path {
  font-size: 10px;
  color: #888;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 1px;
}

.file-list li .unsaved-dot {
  width: 8px;
  height: 8px;
  background-color: #f0ad4e;
  border-radius: 50%;
  margin-left: 6px;
}

.file-list li .close-file {
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
  font-size: 14px;
  color: #999;
  margin-left: 4px;
  border-radius: 3px;
  display: none;
}

.file-list li:hover .close-file {
  display: block;
}

.file-list li .close-file:hover {
  background-color: #ccc;
  color: #333;
}

/* Right Sidebar (Outline) */
.right-sidebar {
  width: 220px;
  min-width: 220px;
  background-color: #f0f0f0;
  border-left: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
  transition: width 0.2s, min-width 0.2s, opacity 0.2s;
}

.right-sidebar.hidden {
  width: 0;
  min-width: 0;
  overflow: hidden;
  opacity: 0;
  border-left: none;
}

.right-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-bottom: 1px solid #e0e0e0;
  background-color: #e8e8e8;
  gap: 8px;
}

.right-sidebar-tabs {
  display: flex;
  gap: 2px;
  flex: 1;
}

.right-sidebar-tab {
  padding: 6px 12px;
  background: transparent;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
}

.right-sidebar-tab:hover {
  background-color: #ddd;
  color: #333;
}

.right-sidebar-tab.active {
  background-color: #fff;
  color: #333;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.right-sidebar-panel {
  display: none;
  height: 100%;
  flex-direction: column;
}

.right-sidebar-panel.active {
  display: flex;
}

.right-sidebar-title {
  font-size: 12px;
  font-weight: 600;
  color: #555;
  text-transform: uppercase;
}

.right-sidebar-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 6px;
  font-size: 16px;
  color: #666;
  border-radius: 3px;
  line-height: 1;
}

.right-sidebar-toggle:hover {
  background-color: #ddd;
  color: #333;
}

.right-sidebar-content {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

/* Document Outline */
.outline-list {
  padding: 0;
  margin: 0;
  overflow-y: auto;
}

.outline-empty {
  color: #999;
  font-style: italic;
  padding: 12px;
  text-align: center;
  font-size: 12px;
}

.outline-item {
  display: flex;
  align-items: center;
  padding: 5px 8px;
  cursor: pointer;
  font-size: 12px;
  color: #444;
  line-height: 1.4;
  border-left: 2px solid transparent;
  transition: background-color 0.1s, border-left-color 0.1s;
  gap: 4px;
}

.outline-item:hover {
  background-color: #e0e0e0;
}

.outline-item.active {
  background-color: #ddd;
  border-left-color: #0066cc;
}

.outline-chevron {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #888;
  transition: transform 0.15s;
  cursor: pointer;
  border-radius: 3px;
}

.outline-chevron:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

.outline-chevron svg {
  width: 10px;
  height: 10px;
}

.outline-chevron.collapsed {
  transform: rotate(-90deg);
}

.outline-chevron-placeholder {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.outline-item-container {
  display: flex;
  flex-direction: column;
}

.outline-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.outline-children {
  overflow: hidden;
}

.outline-children.collapsed {
  display: none;
}

/* Heading level indentation */
.outline-item[data-level="1"] { padding-left: 8px; font-weight: 600; }
.outline-item[data-level="2"] { padding-left: 16px; }
.outline-item[data-level="3"] { padding-left: 24px; }
.outline-item[data-level="4"] { padding-left: 32px; font-size: 11px; }
.outline-item[data-level="5"] { padding-left: 40px; font-size: 11px; }
.outline-item[data-level="6"] { padding-left: 48px; font-size: 11px; }

/* File Context Menu */
.file-context-menu {
  position: fixed;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  padding: 4px 0;
  min-width: 160px;
  z-index: 10000;
}

.file-context-menu-item {
  padding: 8px 12px;
  font-size: 13px;
  color: #333;
  cursor: pointer;
}

.file-context-menu-item:hover {
  background-color: #f0f0f0;
}

.file-context-menu-separator {
  height: 1px;
  background-color: #e0e0e0;
  margin: 4px 0;
}

/* Rename Dialog */
.rename-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}

.rename-dialog-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
}

.rename-dialog-content {
  position: relative;
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  width: 400px;
  max-width: 90vw;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.rename-dialog-content h3 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
}

.rename-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  box-sizing: border-box;
}

.rename-input:focus {
  outline: none;
  border-color: #0066cc;
  box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.1);
}

.rename-dialog-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.rename-btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  border: none;
}

.rename-btn.cancel {
  background: #e0e0e0;
  color: #333;
}

.rename-btn.cancel:hover {
  background: #d0d0d0;
}

.rename-btn.ok {
  background: #0066cc;
  color: #fff;
}

.rename-btn.ok:hover {
  background: #0055aa;
}

body.dark .file-context-menu {
  background: #2d2d2d;
  border-color: #404040;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

body.dark .file-context-menu-item {
  color: #ccc;
}

body.dark .file-context-menu-item:hover {
  background-color: #3d3d3d;
}

body.dark .file-context-menu-separator {
  background-color: #404040;
}

/* Dark mode rename dialog */
body.dark .rename-dialog-content {
  background: #1e1e1e;
}

body.dark .rename-dialog-content h3 {
  color: #e0e0e0;
}

body.dark .rename-input {
  background: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}

body.dark .rename-input:focus {
  border-color: #4da6ff;
  box-shadow: 0 0 0 2px rgba(77, 166, 255, 0.1);
}

body.dark .rename-btn.cancel {
  background: #444;
  color: #e0e0e0;
}

body.dark .rename-btn.cancel:hover {
  background: #555;
}

/* Resize Handles */
.resize-handle {
  width: 4px;
  background-color: transparent;
  cursor: col-resize;
  position: relative;
  flex-shrink: 0;
  z-index: 10;
  transition: background-color 0.15s;
}

.resize-handle:hover,
.resize-handle.resizing {
  background-color: #0066cc;
}

.resize-handle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 8px;
  left: -2px;
}

.resize-handle-left {
  margin-left: -4px;
}

.resize-handle-right {
  margin-right: -4px;
}

/* Resize handles are hidden/shown via JavaScript when sidebars collapse/hide */

/* Prevent text selection during resize */
body.resizing {
  user-select: none;
  cursor: col-resize !important;
}

body.resizing * {
  cursor: col-resize !important;
}

/* Main Content Area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Tabs Bar */
.tabs-bar {
  display: flex;
  background-color: #e8e8e8;
  border-bottom: 1px solid #ddd;
  overflow-x: auto;
  min-height: 35px;
}

.tabs-bar::-webkit-scrollbar {
  height: 3px;
}

.tabs-bar::-webkit-scrollbar-thumb {
  background-color: #ccc;
}

.tab {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  background-color: #e0e0e0;
  border-right: 1px solid #d0d0d0;
  cursor: pointer;
  font-size: 13px;
  color: #555;
  white-space: nowrap;
  min-width: 100px;
  max-width: 180px;
}

.tab:hover {
  background-color: #d8d8d8;
}

.tab.active {
  background-color: #fff;
  color: #333;
}

.tab .tab-info {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.tab .tab-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.tab .tab-path {
  font-size: 10px;
  color: #888;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tab .unsaved-indicator {
  width: 6px;
  height: 6px;
  background-color: #f0ad4e;
  border-radius: 50%;
  margin-left: 6px;
}

.tab .close-tab {
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
  font-size: 12px;
  color: #999;
  margin-left: 6px;
  border-radius: 3px;
}

.tab .close-tab:hover {
  background-color: #ccc;
  color: #333;
}

.tab.active .close-tab:hover {
  background-color: #ddd;
}

/* Editor content wrapper */
.editor-content {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  color: #888;
  text-align: center;
}

.welcome p {
  margin: 8px 0;
}

.welcome kbd {
  background-color: #e8e8e8;
  border: 1px solid #ccc;
  border-radius: 3px;
  padding: 2px 6px;
  font-family: monospace;
  font-size: 13px;
}

/* Editor Container */
.editor-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.editor-container.split-view .editor-content .pane {
  width: 50%;
}

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

.editor-pane {
  border-right: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.editor-wrapper {
  flex: 1;
  display: flex;
  overflow: hidden;
  align-items: stretch;
  min-height: 0;
}

.line-numbers {
  padding: 20px 0;
  background-color: #f0f0f0;
  border-right: 1px solid #ddd;
  text-align: right;
  user-select: none;
  overflow-y: scroll;
  overflow-x: hidden;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 14px;
  line-height: 1.6;
  color: #999;
  min-width: 50px;
  min-height: 0;
  flex-shrink: 0;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}

.line-numbers::-webkit-scrollbar {
  display: none; /* Chrome/Safari/Opera */
}

.line-numbers span {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 0 12px 0 8px;
  box-sizing: border-box;
}

.line-numbers.hidden {
  display: none;
}

.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 12px;
  background-color: #e8e8e8;
  border-top: 1px solid #ddd;
  font-size: 12px;
  color: #666;
}

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

.status-btn {
  padding: 2px 8px;
  background-color: #ddd;
  border: 1px solid #ccc;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
  color: #555;
}

.status-btn:hover {
  background-color: #d0d0d0;
}

.status-btn.active {
  background-color: #555;
  border-color: #555;
  color: white;
}


.editor-pane textarea {
  flex: 1;
  padding: 20px;
  border: none;
  outline: none;
  resize: none;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 14px;
  line-height: 1.6;
  background-color: #fff;
  color: #333;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-x: hidden;
}

.editor-pane textarea.no-wrap {
  white-space: pre;
  word-wrap: normal;
  overflow-x: auto;
}

.preview-pane {
  overflow-y: auto;
  background-color: #f5f5f5;
  display: flex;
  flex-direction: column;
}

#content {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px;
  background-color: #fff;
  flex: 1;
}

.split-view #content {
  margin: 20px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Markdown content styles */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin-top: 24px;
  margin-bottom: 16px;
  font-weight: 600;
  line-height: 1.25;
}

.markdown-body h1:first-child,
.markdown-body h2:first-child,
.markdown-body h3:first-child {
  margin-top: 0;
}

.markdown-body h1 {
  font-size: 2em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid #eaecef;
}

.markdown-body h2 {
  font-size: 1.5em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid #eaecef;
}

.markdown-body h3 {
  font-size: 1.25em;
}

.markdown-body h4 {
  font-size: 1em;
}

.markdown-body p {
  margin-bottom: 16px;
}

.markdown-body a {
  color: #0066cc;
  text-decoration: none;
}

.markdown-body a:hover {
  text-decoration: underline;
}

.markdown-body ul,
.markdown-body ol {
  margin-bottom: 16px;
  padding-left: 2em;
}

.markdown-body li {
  margin-bottom: 4px;
}

.markdown-body code {
  background-color: #f6f8fa;
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 85%;
}

.markdown-body pre {
  background-color: #f6f8fa;
  padding: 16px;
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 16px;
}

.markdown-body pre.mermaid {
  background-color: transparent;
  text-align: center;
  padding: 16px 0;
}

.markdown-body pre.mermaid svg {
  max-width: 100%;
  height: auto;
}

.markdown-body pre.mermaid:hover {
  background-color: rgba(0, 0, 0, 0.03);
  border-radius: 6px;
}

/* Mermaid diagram lightbox */
.mermaid-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mermaid-lightbox.hidden {
  display: none;
}

.mermaid-lightbox-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
}

.mermaid-lightbox-content {
  position: relative;
  background: #fff;
  border-radius: 8px;
  width: 92vw;
  height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.mermaid-lightbox-header {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid #e0e0e0;
  flex-shrink: 0;
  gap: 8px;
}

.mermaid-lightbox-title {
  font-size: 13px;
  font-weight: 600;
  color: #333;
  margin-right: auto;
}

.mermaid-lightbox-controls {
  display: flex;
  align-items: center;
  gap: 2px;
}

.mermaid-lb-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  color: #555;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mermaid-lb-btn:hover {
  background: #f0f0f0;
  border-color: #d0d0d0;
  color: #333;
}

.mermaid-lb-zoom-level {
  font-size: 12px;
  color: #666;
  min-width: 40px;
  text-align: center;
  user-select: none;
}

.mermaid-lb-separator {
  width: 1px;
  height: 18px;
  background: #d0d0d0;
  margin: 0 4px;
}

.mermaid-lightbox-body {
  flex: 1;
  overflow: auto;
  cursor: grab;
  background:
    radial-gradient(circle, #ddd 1px, transparent 1px);
  background-size: 20px 20px;
}

.mermaid-lightbox-svg-wrap {
  display: inline-block;
  margin: 24px;
}

.mermaid-lightbox-svg-wrap svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* Dark mode */
body.dark .markdown-body pre.mermaid:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

body.dark .mermaid-lightbox-content {
  background: #1e1e1e;
}

body.dark .mermaid-lightbox-header {
  border-bottom-color: #333;
}

body.dark .mermaid-lightbox-title {
  color: #e0e0e0;
}

body.dark .mermaid-lb-btn {
  color: #aaa;
}

body.dark .mermaid-lb-btn:hover {
  background: #333;
  border-color: #444;
  color: #e0e0e0;
}

body.dark .mermaid-lb-zoom-level {
  color: #999;
}

body.dark .mermaid-lb-separator {
  background: #444;
}

body.dark .mermaid-lightbox-body {
  background:
    radial-gradient(circle, #333 1px, transparent 1px);
  background-size: 20px 20px;
}

.markdown-body pre code {
  background-color: transparent;
  padding: 0;
  font-size: 100%;
}

.markdown-body blockquote {
  margin: 0 0 16px 0;
  padding: 0 16px;
  border-left: 4px solid #dfe2e5;
  color: #6a737d;
}

.markdown-body table {
  border-collapse: collapse;
  margin-bottom: 16px;
  width: 100%;
}

.markdown-body table th,
.markdown-body table td {
  border: 1px solid #dfe2e5;
  padding: 8px 12px;
}

.markdown-body table th {
  background-color: #f6f8fa;
  font-weight: 600;
}

.markdown-body table tr:nth-child(even) {
  background-color: #f6f8fa;
}

.markdown-body hr {
  border: none;
  border-top: 1px solid #eaecef;
  margin: 24px 0;
}

.markdown-body img {
  max-width: 100%;
  height: auto;
}

/* Donate Link */
.donate-link {
  color: #888;
  text-decoration: none;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.2s, background-color 0.2s;
}

.donate-link:hover {
  color: #ff813f;
  background-color: rgba(255, 129, 63, 0.1);
}

/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  padding: 2px;
  background-color: #e8e8e8;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  gap: 2px;
}

.theme-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  border-radius: 50%;
  line-height: 1;
  transition: background-color 0.2s, opacity 0.2s, color 0.2s;
  opacity: 0.4;
  color: #555;
}

.theme-icon svg {
  display: block;
}

.theme-icon.active {
  background-color: #fff;
  opacity: 1;
  color: #333;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover .theme-icon:not(.active) {
  opacity: 0.7;
}

/* Dark Mode Styles */
body.dark {
  background-color: #1a1a1a;
  color: #e0e0e0;
}

body.dark .container {
  background-color: #1a1a1a;
}

body.dark header {
  background-color: #252525;
  border-bottom-color: #333;
}

body.dark header h1 {
  color: #e0e0e0;
}

body.dark .toolbar-icon-btn {
  color: #ccc;
}

body.dark .toolbar-icon-btn:hover:not(:disabled) {
  background-color: #3d3d3d;
  color: #fff;
}

body.dark .toolbar-icon-btn:disabled {
  color: #555;
}

body.dark .toolbar-icon-btn.active {
  background-color: #3d3d3d;
  color: #fff;
}

body.dark .toggle-group {
  border-color: #444;
}

body.dark .toggle-btn {
  background-color: #333 !important;
  color: #ccc !important;
  border-right-color: #444 !important;
}

body.dark .toggle-btn:hover {
  background-color: #444 !important;
}

body.dark .toggle-btn.active {
  background-color: #666 !important;
  color: white !important;
}

body.dark .current-file-path {
  color: #666;
}

/* Dark mode formatting toolbar */
body.dark .formatting-toolbar {
  background-color: #2d2d2d;
  border-color: #404040;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.05);
}

body.dark .fmt-btn {
  color: #ccc;
}

body.dark .fmt-btn:hover {
  background-color: #3d3d3d;
  color: #fff;
}

body.dark .fmt-btn:active {
  background-color: #4d4d4d;
}

body.dark .fmt-btn.active {
  background-color: #1a3a5c;
  color: #8ab4f8;
}

body.dark .fmt-btn.active:hover {
  background-color: #234b75;
}

body.dark .fmt-separator {
  background-color: #404040;
}

body.dark .fmt-divider {
  background-color: #404040;
}

body.dark .fmt-ai-btn {
  color: #999;
}

body.dark .fmt-ai-btn:hover {
  color: #8ab4f8;
  background-color: #1a3a5c;
}

body.dark .fmt-ai-primary {
  color: #8ab4f8;
  background-color: #1a3a5c;
}

body.dark .fmt-ai-primary:hover {
  background-color: #234b75;
}

body.dark .fmt-dropdown-menu {
  background-color: #2d2d2d;
  border-color: #404040;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

body.dark .fmt-dropdown-item:hover {
  background-color: #3d3d3d;
}

body.dark .fmt-dropdown-item.active {
  background-color: #1a3a5c;
}

body.dark .fmt-dropdown-item.active:hover {
  background-color: #234b75;
}

body.dark .heading-preview {
  color: #e0e0e0;
}

/* Dark mode inline formatting toolbar */
body.dark .toolbar-separator {
  background-color: #404040;
}

body.dark .fmt-btn-inline {
  color: #ccc;
}

body.dark .fmt-btn-inline:hover {
  background-color: #3d3d3d;
  color: #fff;
}

body.dark .fmt-btn-inline:active {
  background-color: #4d4d4d;
}

body.dark .fmt-btn-inline.active {
  background-color: #4d4d4d;
  color: #fff;
}

body.dark .fmt-separator-inline {
  background-color: #404040;
}

body.dark .heading-desc {
  color: #999;
}

body.dark #file-name {
  color: #999;
}

body.dark .donate-link {
  color: #666;
}

body.dark .donate-link:hover {
  color: #ff813f;
  background-color: rgba(255, 129, 63, 0.15);
}

body.dark .theme-toggle {
  background-color: #333;
}

body.dark .theme-icon {
  color: #888;
}

body.dark .theme-icon.active {
  background-color: #555;
  color: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

body.dark .welcome {
  color: #777;
}

body.dark .welcome kbd {
  background-color: #333;
  border-color: #444;
  color: #ccc;
}

body.dark .editor-pane {
  border-right-color: #333;
}

body.dark .editor-pane textarea {
  background-color: #252525;
  color: #d4d4d4;
}

body.dark .line-numbers {
  background-color: #1a1a1a;
  border-right-color: #333;
  color: #666;
}

body.dark .status-bar {
  background-color: #252525;
  border-top-color: #333;
  color: #999;
}

body.dark .status-btn {
  background-color: #333;
  border-color: #444;
  color: #ccc;
}

body.dark .status-btn:hover {
  background-color: #444;
}

body.dark .status-btn.active {
  background-color: #0077dd;
  border-color: #0077dd;
  color: white;
}

/* Dark mode resize handles */
body.dark .resize-handle:hover,
body.dark .resize-handle.resizing {
  background-color: #4da6ff;
}

/* Dark mode sidebar */
body.dark .sidebar {
  background-color: #1e1e1e;
  border-right-color: #333;
}

body.dark .sidebar-header {
  background-color: #252525;
  border-bottom-color: #333;
}

body.dark .sidebar-title {
  color: #aaa;
}

body.dark .sidebar-toggle {
  color: #aaa;
}

body.dark .sidebar-toggle:hover {
  background-color: #333;
}

body.dark .file-list li {
  color: #ccc;
}

body.dark .file-list li:hover {
  background-color: #2a2a2a;
}

body.dark .file-list li.active {
  background-color: #333;
  border-left-color: #0077dd;
}

body.dark .file-list li .close-file {
  color: #777;
}

body.dark .file-list li .close-file:hover {
  background-color: #444;
  color: #ccc;
}

body.dark .file-list li .file-path {
  color: #666;
}

/* Dark mode right sidebar */
body.dark .right-sidebar {
  background-color: #1e1e1e;
  border-left-color: #333;
}

body.dark .right-sidebar-header {
  background-color: #252525;
  border-bottom-color: #333;
}

body.dark .right-sidebar-title {
  color: #aaa;
}

body.dark .right-sidebar-toggle {
  color: #aaa;
}

body.dark .right-sidebar-toggle:hover {
  background-color: #333;
  color: #fff;
}

/* Dark mode sidebar sections */
body.dark .sidebar-section {
  border-bottom-color: #333;
}

body.dark .sidebar-section-header:hover {
  background-color: #2a2a2a;
}

body.dark .sidebar-section-title {
  color: #aaa;
}

body.dark .section-chevron {
  color: #888;
}

/* Dark mode outline */
body.dark .outline-item {
  color: #ccc;
}

body.dark .outline-item:hover {
  background-color: #2a2a2a;
}

body.dark .outline-item.active {
  background-color: #333;
  border-left-color: #0077dd;
}

body.dark .outline-empty {
  color: #666;
}

body.dark .outline-chevron {
  color: #666;
}

body.dark .outline-chevron:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Chat Panel Styles */
.chat-header {
  display: flex;
  justify-content: flex-end;
  padding: 6px 8px;
  border-bottom: 1px solid #e0e0e0;
  background-color: #f5f5f5;
}

.chat-clear-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: transparent;
  border: none;
  border-radius: 4px;
  font-size: 11px;
  color: #666;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s;
}

.chat-clear-btn:hover {
  background-color: #e0e0e0;
  color: #333;
}

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

.chat-welcome {
  color: #888;
  font-size: 13px;
  text-align: center;
  padding: 20px;
}

.chat-message {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-message.user {
  align-items: flex-end;
}

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

.chat-message-content {
  max-width: 90%;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
  word-wrap: break-word;
}

.chat-message.user .chat-message-content {
  background-color: #0066cc;
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-message.assistant .chat-message-content {
  background-color: #f0f0f0;
  color: #333;
  border-bottom-left-radius: 4px;
}

.chat-message.assistant {
  position: relative;
}

.chat-copy-btn {
  position: absolute;
  top: 0;
  right: 0;
  padding: 4px 6px;
  background: #e0e0e0;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background-color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
}

.chat-message.assistant:hover .chat-copy-btn {
  opacity: 1;
}

.chat-copy-btn:hover {
  background-color: #d0d0d0;
  color: #333;
}

.chat-copy-btn.copied {
  background-color: #4caf50;
  color: #fff;
  opacity: 1;
}

/* Markdown styles in chat */
.chat-message-content p {
  margin: 0 0 8px 0;
}

.chat-message-content p:last-child {
  margin-bottom: 0;
}

.chat-message-content code {
  background-color: rgba(0, 0, 0, 0.1);
  padding: 2px 4px;
  border-radius: 3px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 12px;
}

.chat-message-content pre {
  background-color: rgba(0, 0, 0, 0.1);
  padding: 8px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 8px 0;
}

.chat-message-content pre code {
  background: none;
  padding: 0;
}

.chat-message-content ul,
.chat-message-content ol {
  margin: 8px 0;
  padding-left: 20px;
}

.chat-message-content blockquote {
  border-left: 3px solid rgba(0, 0, 0, 0.2);
  margin: 8px 0;
  padding-left: 10px;
  color: inherit;
  opacity: 0.8;
}

.chat-message-content h1,
.chat-message-content h2,
.chat-message-content h3 {
  margin: 8px 0 4px 0;
  font-size: 14px;
  font-weight: 600;
}

.chat-message.streaming .chat-message-content::after {
  content: '▋';
  animation: blink 1s infinite;
}

.chat-input-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid #e0e0e0;
  background-color: #f5f5f5;
}

.chat-context-toggle {
  display: flex;
  align-items: center;
}

.chat-context-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 11px;
  color: #666;
  user-select: none;
}

.chat-context-label input {
  margin: 0;
  cursor: pointer;
}

.chat-context-label:hover {
  color: #333;
}

.chat-input-row {
  display: flex;
  gap: 8px;
}

.chat-input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 18px;
  font-size: 13px;
  font-family: inherit;
  resize: none;
  max-height: 100px;
  line-height: 1.4;
}

.chat-input:focus {
  outline: none;
  border-color: #0066cc;
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background-color: #0066cc;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s;
  flex-shrink: 0;
}

.chat-send-btn:hover {
  background-color: #0055aa;
}

.chat-send-btn:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

/* Dark mode chat styles */
body.dark .right-sidebar-tab {
  color: #999;
}

body.dark .right-sidebar-tab:hover {
  background-color: #333;
  color: #fff;
}

body.dark .right-sidebar-tab.active {
  background-color: #333;
  color: #fff;
}

body.dark .chat-welcome {
  color: #666;
}

body.dark .chat-message.user .chat-message-content {
  background-color: #0077dd;
}

body.dark .chat-message.assistant .chat-message-content {
  background-color: #2a2a2a;
  color: #e0e0e0;
}

body.dark .chat-copy-btn {
  background: #333;
  color: #888;
}

body.dark .chat-copy-btn:hover {
  background-color: #444;
  color: #fff;
}

body.dark .chat-message-content a {
  color: #6bb3ff;
}

body.dark .chat-message-content a:hover {
  color: #8ec8ff;
}

body.dark .chat-message-content code {
  background-color: rgba(255, 255, 255, 0.1);
}

body.dark .chat-message-content pre {
  background-color: rgba(255, 255, 255, 0.1);
}

body.dark .chat-input-container {
  background-color: #1e1e1e;
  border-top-color: #333;
}

body.dark .chat-input {
  background-color: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}

body.dark .chat-input:focus {
  border-color: #4da6ff;
}

body.dark .chat-context-label {
  color: #888;
}

body.dark .chat-context-label:hover {
  color: #ccc;
}

body.dark .chat-header {
  background-color: #1e1e1e;
  border-bottom-color: #333;
}

body.dark .chat-clear-btn {
  color: #888;
}

body.dark .chat-clear-btn:hover {
  background-color: #333;
  color: #fff;
}

/* Dark mode tabs */
body.dark .tabs-bar {
  background-color: #1e1e1e;
  border-bottom-color: #333;
}

body.dark .tabs-bar::-webkit-scrollbar-thumb {
  background-color: #444;
}

body.dark .tab {
  background-color: #2a2a2a;
  border-right-color: #333;
  color: #999;
}

body.dark .tab:hover {
  background-color: #333;
}

body.dark .tab.active {
  background-color: #1e1e1e;
  color: #e0e0e0;
}

body.dark .tab .close-tab {
  color: #666;
}

body.dark .tab .close-tab:hover {
  background-color: #444;
  color: #ccc;
}

body.dark .tab.active .close-tab:hover {
  background-color: #333;
}

body.dark .tab .tab-path {
  color: #666;
}

body.dark .preview-pane {
  background-color: #1a1a1a;
}

body.dark #content {
  background-color: #252525;
}

body.dark .split-view #content {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Dark mode markdown styles */
body.dark .markdown-body h1,
body.dark .markdown-body h2 {
  border-bottom-color: #444;
}

body.dark .markdown-body a {
  color: #58a6ff;
}

body.dark .markdown-body code {
  background-color: #333;
  color: #e0e0e0;
}

body.dark .markdown-body pre {
  background-color: #1e1e1e;
}

body.dark .markdown-body pre.mermaid {
  background-color: transparent;
}

body.dark .markdown-body pre code {
  background-color: transparent;
}

/* Dark mode syntax highlighting */
body.dark .hljs {
  background: #1e1e1e;
  color: #d4d4d4;
}
body.dark .hljs-keyword,
body.dark .hljs-selector-tag,
body.dark .hljs-literal,
body.dark .hljs-section,
body.dark .hljs-link {
  color: #569cd6;
}
body.dark .hljs-function .hljs-keyword {
  color: #569cd6;
}
body.dark .hljs-string,
body.dark .hljs-title,
body.dark .hljs-name,
body.dark .hljs-type,
body.dark .hljs-attribute,
body.dark .hljs-symbol,
body.dark .hljs-bullet,
body.dark .hljs-addition,
body.dark .hljs-variable,
body.dark .hljs-template-tag,
body.dark .hljs-template-variable {
  color: #ce9178;
}
body.dark .hljs-comment,
body.dark .hljs-quote,
body.dark .hljs-deletion,
body.dark .hljs-meta {
  color: #6a9955;
}
body.dark .hljs-number {
  color: #b5cea8;
}
body.dark .hljs-built_in,
body.dark .hljs-class .hljs-title {
  color: #4ec9b0;
}
body.dark .hljs-attr {
  color: #9cdcfe;
}

body.dark .markdown-body blockquote {
  border-left-color: #444;
  color: #999;
}

body.dark .markdown-body table th,
body.dark .markdown-body table td {
  border-color: #444;
}

body.dark .markdown-body table th {
  background-color: #333;
}

body.dark .markdown-body table tr:nth-child(even) {
  background-color: #2a2a2a;
}

body.dark .markdown-body hr {
  border-top-color: #444;
}

/* Drag and drop overlay */
body.drag-over::after {
  content: 'Drop markdown file here';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 102, 204, 0.9);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 600;
  z-index: 9999;
  pointer-events: none;
}

body.dark.drag-over::after {
  background-color: rgba(0, 119, 221, 0.9);
}

/* Settings Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: relative;
  background: #fff;
  border-radius: 8px;
  width: 550px;
  max-width: 90vw;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid #e0e0e0;
}

.modal-header h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #666;
  line-height: 1;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.modal-close:hover {
  background: #f0f0f0;
  color: #333;
}

.modal-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.settings-nav {
  display: flex;
  padding: 0 20px;
  border-bottom: 1px solid #e0e0e0;
}

.settings-tab {
  padding: 12px 20px;
  background: none;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  color: #666;
  font-size: 14px;
}

.settings-tab:hover {
  color: #333;
}

.settings-tab.active {
  border-bottom-color: #0066cc;
  color: #0066cc;
}

.settings-panel {
  display: none;
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

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

.plugins-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.no-plugins {
  color: #666;
  text-align: center;
  padding: 40px;
}

.plugin-card {
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
}

.plugin-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 16px;
  background: #f8f8f8;
}

.plugin-info {
  flex: 1;
}

.plugin-name {
  margin: 0 0 4px 0;
  font-size: 15px;
  font-weight: 600;
}

.plugin-description {
  margin: 0 0 8px 0;
  font-size: 13px;
  color: #666;
}

.plugin-version {
  font-size: 11px;
  color: #999;
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

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

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.2s;
  border-radius: 24px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.2s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: #0066cc;
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

.plugin-settings {
  padding: 16px;
  border-top: 1px solid #e0e0e0;
}

.plugin-settings.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setting-label {
  font-size: 13px;
  font-weight: 500;
  color: #333;
}

.setting-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  box-sizing: border-box;
}

.setting-input:focus {
  outline: none;
  border-color: #0066cc;
  box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.1);
}

.setting-description {
  font-size: 12px;
  color: #666;
  margin: 0;
}

/* Loading indicator (small, non-blocking) */
.loading-indicator {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #333;
  color: #fff;
  padding: 12px 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10001;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.loading-indicator.hidden {
  display: none;
}

.loading-spinner-small {
  width: 18px;
  height: 18px;
  border: 2px solid #fff;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

#loading-message {
  font-size: 13px;
}

/* Prompt dialog */
.prompt-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10002;
  display: flex;
  align-items: center;
  justify-content: center;
}

.prompt-dialog.hidden {
  display: none;
}

.prompt-dialog-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
}

.prompt-dialog-content {
  position: relative;
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  width: 450px;
  max-width: 90vw;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.prompt-dialog-content h3 {
  margin: 0 0 12px 0;
  font-size: 16px;
  font-weight: 600;
}

#prompt-dialog-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
  box-sizing: border-box;
}

#prompt-dialog-input:focus {
  outline: none;
  border-color: #0066cc;
  box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.1);
}

.prompt-dialog-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.prompt-btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  border: none;
}

.prompt-btn.cancel {
  background: #e0e0e0;
  color: #333;
}

.prompt-btn.cancel:hover {
  background: #d0d0d0;
}

.prompt-btn.ok {
  background: #0066cc;
  color: #fff;
}

.prompt-btn.ok:hover {
  background: #0055aa;
}

/* AI Review Dialog */
.ai-review-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10003;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-review-dialog.hidden {
  display: none;
}

.ai-review-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}

.ai-review-content {
  position: relative;
  background: #fff;
  border-radius: 10px;
  width: 700px;
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.ai-review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid #e0e0e0;
}

.ai-review-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.ai-review-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #666;
  line-height: 1;
  padding: 4px;
}

.ai-review-close:hover {
  color: #333;
}

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

.ai-review-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-review-section label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: #666;
}

.ai-review-text {
  padding: 12px;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 150px;
  overflow-y: auto;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.ai-review-text.original {
  background: #fff3e0;
  border: 1px solid #ffe0b2;
  color: #e65100;
}

.ai-review-text.generated {
  background: #e8f5e9;
  border: 1px solid #c8e6c9;
  color: #2e7d32;
}

.ai-review-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-top: 1px solid #e0e0e0;
}

.ai-review-actions {
  display: flex;
  gap: 8px;
}

.ai-review-btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background 0.15s;
}

.ai-review-btn.regenerate {
  background: #f0f0f0;
  color: #333;
}

.ai-review-btn.regenerate:hover {
  background: #e0e0e0;
}

.ai-review-btn.reject {
  background: #ffebee;
  color: #c62828;
}

.ai-review-btn.reject:hover {
  background: #ffcdd2;
}

.ai-review-btn.accept {
  background: #0066cc;
  color: #fff;
}

.ai-review-btn.accept:hover {
  background: #0055aa;
}

/* Dark mode AI Review */
body.dark .ai-review-content {
  background: #1e1e1e;
}

body.dark .ai-review-header {
  border-bottom-color: #333;
}

body.dark .ai-review-header h3 {
  color: #e0e0e0;
}

body.dark .ai-review-close {
  color: #999;
}

body.dark .ai-review-close:hover {
  color: #fff;
}

body.dark .ai-review-section label {
  color: #999;
}

body.dark .ai-review-text.original {
  background: #3e2723;
  border-color: #5d4037;
  color: #ffcc80;
}

body.dark .ai-review-text.generated {
  background: #1b5e20;
  border-color: #2e7d32;
  color: #a5d6a7;
}

body.dark .ai-review-footer {
  border-top-color: #333;
}

body.dark .ai-review-btn.regenerate {
  background: #333;
  color: #e0e0e0;
}

body.dark .ai-review-btn.regenerate:hover {
  background: #444;
}

body.dark .ai-review-btn.reject {
  background: #4a1c1c;
  color: #ef9a9a;
}

body.dark .ai-review-btn.reject:hover {
  background: #5c2424;
}

/* Dark mode for loading indicator and prompt dialog */
body.dark .loading-indicator {
  background: #444;
}

body.dark .prompt-dialog-content {
  background: #1e1e1e;
}

body.dark .prompt-dialog-content h3 {
  color: #e0e0e0;
}

body.dark #prompt-dialog-input {
  background: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}

body.dark #prompt-dialog-input:focus {
  border-color: #4da6ff;
  box-shadow: 0 0 0 2px rgba(77, 166, 255, 0.1);
}

body.dark .prompt-btn.cancel {
  background: #444;
  color: #e0e0e0;
}

body.dark .prompt-btn.cancel:hover {
  background: #555;
}

/* Notification container */
.notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10002;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.notification {
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 14px;
  max-width: 350px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: slideIn 0.3s ease;
  transition: opacity 0.3s, transform 0.3s;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.notification.info {
  background: #e3f2fd;
  color: #1565c0;
  border-left: 4px solid #1565c0;
}

.notification.success {
  background: #e8f5e9;
  color: #2e7d32;
  border-left: 4px solid #2e7d32;
}

.notification.error {
  background: #ffebee;
  color: #c62828;
  border-left: 4px solid #c62828;
}

.notification.warning {
  background: #fff3e0;
  color: #ef6c00;
  border-left: 4px solid #ef6c00;
}

/* Dark mode styles for modal and notifications */
body.dark .modal-content {
  background: #1e1e1e;
  border-color: #333;
}

body.dark .modal-header {
  border-bottom-color: #333;
}

body.dark .modal-header h2 {
  color: #e0e0e0;
}

body.dark .modal-close {
  color: #999;
}

body.dark .modal-close:hover {
  background: #333;
  color: #fff;
}

body.dark .settings-nav {
  border-bottom-color: #333;
}

body.dark .settings-tab {
  color: #999;
}

body.dark .settings-tab:hover {
  color: #e0e0e0;
}

body.dark .settings-tab.active {
  color: #4da6ff;
  border-bottom-color: #4da6ff;
}

body.dark .plugin-card {
  border-color: #333;
}

body.dark .plugin-header {
  background: #252525;
}

body.dark .plugin-name {
  color: #e0e0e0;
}

body.dark .plugin-description {
  color: #999;
}

body.dark .plugin-settings {
  border-top-color: #333;
}

body.dark .setting-label {
  color: #e0e0e0;
}

body.dark .setting-input {
  background: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}

body.dark .setting-input:focus {
  border-color: #4da6ff;
  box-shadow: 0 0 0 2px rgba(77, 166, 255, 0.1);
}

body.dark .setting-description {
  color: #888;
}

body.dark .no-plugins {
  color: #888;
}

body.dark .notification.info {
  background: #1a237e;
  color: #90caf9;
  border-left-color: #90caf9;
}

body.dark .notification.success {
  background: #1b5e20;
  color: #a5d6a7;
  border-left-color: #a5d6a7;
}

body.dark .notification.error {
  background: #b71c1c;
  color: #ef9a9a;
  border-left-color: #ef9a9a;
}

body.dark .notification.warning {
  background: #e65100;
  color: #ffcc80;
  border-left-color: #ffcc80;
}

/* Inline AI Diff Panel */
.inline-diff-panel {
  position: fixed;
  z-index: 10000;
  background: #1e1e1e;
  border: 1px solid #3c3c3c;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  min-width: 500px;
  max-width: 700px;
  max-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  overflow: hidden;
}

.inline-diff-panel.hidden {
  display: none;
}

.inline-diff-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: #252525;
  border-bottom: 1px solid #3c3c3c;
}

.inline-diff-action {
  font-size: 13px;
  color: #999;
  font-weight: 500;
}

.inline-diff-action.generating::after {
  content: '';
  animation: dots 1.5s infinite;
}

@keyframes dots {
  0%, 20% { content: ''; }
  40% { content: '.'; }
  60% { content: '..'; }
  80%, 100% { content: '...'; }
}

.inline-diff-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.inline-diff-btn {
  padding: 4px 10px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s;
}

.inline-diff-btn kbd {
  font-family: inherit;
  font-size: 11px;
  opacity: 0.7;
  margin-left: 4px;
}

.inline-diff-btn.reject {
  background: transparent;
  color: #999;
}

.inline-diff-btn.reject:hover {
  background: #333;
  color: #fff;
}

.inline-diff-btn.accept {
  background: #2ea043;
  color: #fff;
}

.inline-diff-btn.accept:hover:not(:disabled) {
  background: #3fb950;
}

.inline-diff-btn.accept:disabled {
  background: #1a5c2a;
  color: #666;
  cursor: not-allowed;
  opacity: 0.6;
}

.inline-diff-btn.close {
  background: transparent;
  color: #999;
  font-size: 16px;
  padding: 4px 8px;
}

.inline-diff-btn.close:hover {
  background: #333;
  color: #fff;
}

.inline-diff-body {
  padding: 0;
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.inline-diff-text {
  padding: 10px 14px;
  font-family: 'SF Mono', Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.inline-diff-text.original {
  background: rgba(218, 97, 204, 0.15);
  color: #e8a0e2;
  border-left: 3px solid #da61cc;
}

.inline-diff-text.generated {
  background: rgba(63, 185, 80, 0.15);
  color: #7ee787;
  border-left: 3px solid #3fb950;
}

.inline-diff-text.streaming::after {
  content: '▋';
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Light mode overrides for inline diff */
body:not(.dark) .inline-diff-panel {
  background: #fff;
  border-color: #d0d7de;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

body:not(.dark) .inline-diff-header {
  background: #f6f8fa;
  border-bottom-color: #d0d7de;
}

body:not(.dark) .inline-diff-action {
  color: #57606a;
}

body:not(.dark) .inline-diff-btn.reject {
  color: #57606a;
}

body:not(.dark) .inline-diff-btn.reject:hover {
  background: #e8e8e8;
  color: #24292f;
}

body:not(.dark) .inline-diff-btn.close {
  color: #57606a;
}

body:not(.dark) .inline-diff-btn.close:hover {
  background: #e8e8e8;
  color: #24292f;
}

body:not(.dark) .inline-diff-text.original {
  background: rgba(164, 51, 151, 0.1);
  color: #8b3d7d;
  border-left-color: #a43397;
}

body:not(.dark) .inline-diff-text.generated {
  background: rgba(46, 160, 67, 0.1);
  color: #1a7f37;
  border-left-color: #2ea043;
}

/* Inline AI Prompt Input */
.inline-prompt {
  position: fixed;
  z-index: 10001;
  background: #1e1e1e;
  border: 1px solid #3c3c3c;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  padding: 8px 12px;
  min-width: 400px;
  max-width: 600px;
}

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

.inline-prompt-input-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

#inline-prompt-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 14px;
  color: #e0e0e0;
  padding: 8px 4px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  resize: none;
  min-height: 24px;
  max-height: 150px;
  line-height: 1.5;
}

#inline-prompt-input::placeholder {
  color: #666;
}

.inline-prompt-hint {
  font-size: 11px;
  color: #555;
  padding: 4px 4px 0;
  border-top: 1px solid #333;
  margin-top: 8px;
}

.inline-prompt-hint kbd {
  background: #333;
  padding: 2px 5px;
  border-radius: 3px;
  font-family: inherit;
  font-size: 10px;
}

.inline-prompt-submit {
  background: #333;
  border: 1px solid #444;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #999;
  transition: all 0.15s;
}

.inline-prompt-submit:hover {
  background: #444;
  color: #fff;
  border-color: #555;
}

.inline-prompt-close {
  background: transparent;
  border: none;
  color: #666;
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
  transition: color 0.15s;
}

.inline-prompt-close:hover {
  color: #fff;
}

/* Light mode for inline prompt */
body:not(.dark) .inline-prompt {
  background: #fff;
  border-color: #d0d7de;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

body:not(.dark) #inline-prompt-input {
  color: #24292f;
}

body:not(.dark) #inline-prompt-input::placeholder {
  color: #999;
}

body:not(.dark) .inline-prompt-submit {
  background: #f6f8fa;
  border-color: #d0d7de;
  color: #57606a;
}

body:not(.dark) .inline-prompt-submit:hover {
  background: #e8e8e8;
  color: #24292f;
}

body:not(.dark) .inline-prompt-close {
  color: #999;
}

body:not(.dark) .inline-prompt-close:hover {
  color: #24292f;
}

body:not(.dark) .inline-prompt-hint {
  color: #999;
  border-top-color: #e0e0e0;
}

body:not(.dark) .inline-prompt-hint kbd {
  background: #e8e8e8;
}