editor.css

/* ===== Inline editing ===== */
#viewer-content.editing {
  outline: none;
  cursor: text;
}

#app.edit-mode .app-viewer {
  box-shadow: inset 0 0 0 2px var(--color-accent-subtle);
}

/* ===== Dirty indicator ===== */
.toolbar-dirty-indicator {
  display: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-alert-warning, #d29922);
  flex-shrink: 0;
}

#app.edit-mode.is-dirty .toolbar-dirty-indicator {
  display: inline-block;
}

/* ===== Edit toolbar group ===== */
.toolbar-edit-group {
  display: none;
  align-items: center;
  gap: var(--space-xs);
}

#app.edit-mode .toolbar-edit-group {
  display: flex;
}

/* ===== Persistent format toolbar row ===== */
.toolbar-format-row {
  display: none;
  align-items: center;
  gap: var(--space-xs);
  padding: 0 var(--space-md);
  min-height: 36px;
  background: var(--color-bg-tertiary);
  border-top: 1px solid var(--color-toolbar-border);
  border-bottom: 1px solid var(--color-toolbar-border);
  user-select: none;
  -webkit-app-region: no-drag;
  flex-shrink: 0;
  overflow-x: clip;
}

#app.edit-mode .toolbar-format-row {
  display: flex;
}

/* Prevent format row children from shrinking */
.toolbar-format-row .toolbar-group {
  flex-shrink: 0;
}

.toolbar-format-row .toolbar-divider {
  flex-shrink: 0;
}

/* Adjust grid layout when format row is visible */
#app.edit-mode {
  grid-template-rows: var(--toolbar-height) auto 1fr;
  grid-template-areas:
    "toolbar toolbar"
    "format-row format-row"
    "sidebar viewer";
}

.toolbar-format-row {
  grid-area: format-row;
}

/* Collapse both toolbar rows in focus+edit mode */
#app.edit-mode.focus-mode {
  grid-template-rows: 0 0 1fr;
}

/* Block type dropdown */
.format-block-select {
  appearance: none;
  -webkit-appearance: none;
  padding-block: 2px;
  padding-inline: var(--space-sm) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b949e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-family: var(--font-body);
  cursor: pointer;
  min-width: 120px;
  height: 28px;
}

.format-block-select option {
  background: var(--color-surface);
  color: var(--color-text);
}

.format-block-select:focus {
  border-color: var(--color-accent);
  outline: none;
  box-shadow: 0 0 0 2px var(--color-accent-subtle);
}

[dir="rtl"] .format-block-select {
  background-position: left 6px center;
}

/* Format buttons (shared by persistent toolbar and floating bar) */
.format-btn {
  width: 28px;
  height: 28px;
  color: var(--color-text);
  flex-shrink: 0;
}

.format-btn:hover {
  background: var(--color-surface-hover);
}

.format-btn svg {
  width: 16px;
  height: 16px;
}

.format-btn.active {
  color: var(--color-accent);
  background: var(--color-accent-subtle);
}

/* ===== Tooltips (CSS-only) ===== */
[data-tooltip] {
  position: relative;
}

[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 6px;
  padding: 4px 8px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  animation: tooltip-fade 150ms ease-out 800ms forwards;
  z-index: 400;
}

@keyframes tooltip-fade {
  to { opacity: 1; }
}

/* ===== Floating format bar ===== */
.format-bar {
  position: fixed;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: var(--space-xs);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 350;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 150ms ease-out, transform 150ms ease-out;
  will-change: opacity, transform;
}

.format-bar-buttons {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
}

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

.format-bar .toolbar-btn {
  width: 28px;
  height: 28px;
}

.format-bar .toolbar-btn svg {
  width: 16px;
  height: 16px;
}

.format-bar .format-ask-ai {
    width: auto;
    gap: 6px;
    padding: 0 9px;
    border-left: 1px solid var(--color-border);
    border-radius: 0;
    white-space: nowrap;
    font: inherit;
}

.format-bar.ai-code-selection .format-btn,
.format-bar.ai-code-selection .toolbar-divider {
    display: none;
}

.format-bar .toolbar-divider {
  height: 16px;
  margin: 0 2px;
  background: transparent;
}

/* Format bar link input */
.format-bar-link-input {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.format-bar-link-input input {
  width: 200px;
  padding: 2px var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-family: var(--font-body);
  outline: none;
}

.format-bar-link-input input:focus {
  border-color: var(--color-accent);
}

.format-bar-cancel-btn {
  width: 24px;
  height: 24px;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

/* ===== Link popover ===== */
.link-popover {
  position: fixed;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 350;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 150ms ease-out, transform 150ms ease-out;
  will-change: opacity, transform;
}

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

.link-popover-view {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.link-popover-url {
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
}

.link-popover-edit-btn,
.link-popover-unlink-btn,
.link-popover-confirm-btn,
.link-popover-cancel-btn {
  width: 28px;
  height: 28px;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.link-popover-edit-btn {
  width: auto;
  padding: 0 var(--space-sm);
}

.link-popover-edit {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  position: relative;
}

.link-popover-top-bar {
  display: flex;
  justify-content: flex-end;
  position: absolute;
  top: -2px;
  right: -4px;
}

.link-popover-remove-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 2px;
}

.link-popover-remove-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  width: auto !important;
  padding: 2px 8px !important;
  font-size: var(--font-size-xs);
  color: var(--color-alert-caution);
  border-radius: var(--radius-sm);
}

.link-popover-remove-btn:hover {
  background: rgba(255, 50, 50, 0.1);
}

.link-popover-edit-row {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.link-popover-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  min-width: 28px;
  flex-shrink: 0;
}

.link-popover-input,
.link-popover-text-input {
  width: 200px;
  padding: 2px var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-family: var(--font-body);
  outline: none;
}

.link-popover-input:focus,
.link-popover-text-input:focus {
  border-color: var(--color-accent);
}

/* ===== Slash command menu ===== */
.slash-menu-anchor {
  position: fixed;
  display: none;
  width: 0;
  height: 0;
  overflow: visible;
  pointer-events: none;
  z-index: 350;
}

.slash-menu-anchor.visible {
  display: flex;
}

.slash-menu {
  position: absolute;
  left: 0;
  min-width: 240px;
  max-height: 300px;
  overflow-y: auto;
  padding: var(--space-xs) 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: menu-enter 120ms ease-out;
}

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

.slash-menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: background 80ms ease;
}

.slash-menu-item:hover,
.slash-menu-item.selected {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

.slash-menu-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.slash-menu-item.selected svg,
.slash-menu-item:hover svg {
  color: var(--color-accent);
}

.slash-menu-item-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.slash-menu-item-label {
  font-weight: 500;
}

.slash-menu-item-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.slash-menu-item-label mark {
  background: transparent;
  color: var(--color-accent);
  font-weight: 600;
}

.slash-menu-item-hint {
  flex-shrink: 0;
  margin-inline-start: auto;
}

.slash-menu-item-hint code {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  background: var(--color-bg-secondary);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
}

.slash-menu-overflow {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  text-align: center;
  user-select: none;
}

/* ===== Language picker ===== */
.lang-picker {
  position: fixed;
  display: flex;
  flex-direction: column;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 350;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 150ms ease-out, transform 150ms ease-out;
  will-change: opacity, transform;
}

.lang-picker.visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.lang-picker-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 2px var(--space-sm);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-family: var(--font-mono, "SF Mono", "Cascadia Code", "Fira Code", "Consolas", monospace);
  cursor: pointer;
  white-space: nowrap;
}

.lang-picker-trigger:hover {
  background: var(--color-surface-hover);
}

.lang-picker-trigger::after {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: 4px;
}

.lang-picker-dropdown {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xs);
  padding-top: var(--space-xs);
}

.lang-picker-dropdown.open {
  display: flex;
}

.lang-picker-search {
  width: 100%;
  padding: 4px var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-family: var(--font-body);
  outline: none;
  box-sizing: border-box;
  margin-bottom: var(--space-xs);
}

.lang-picker-search:focus {
  border-color: var(--color-accent);
}

.lang-picker-list {
  overflow-y: auto;
  max-height: 200px;
}

.lang-picker-item {
  padding: var(--space-xs) var(--space-sm);
  cursor: pointer;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.lang-picker-item:hover,
.lang-picker-item.selected {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

.lang-picker-item.active {
  font-weight: 600;
}

/* ===== Table editing handles (Coda-style) ===== */
.table-wrapper {
  position: relative;
  padding-left: 24px;
  padding-top: 22px;
  padding-right: 28px;
  margin-left: -24px;
  margin-right: -28px;
  margin-bottom: 8px;
  overflow-x: auto;
  overflow-y: visible;
}

/* --- Row handles (left gutter) --- */
.table-row-handles {
  position: absolute;
  left: 0;
  top: 22px;
  width: 24px;
  display: flex;
  flex-direction: column;
  visibility: hidden;
  z-index: 2;
}

.table-row-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  margin-left: 2px;
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: 11px;
  letter-spacing: 1px;
  line-height: 1;
  border-radius: var(--radius-sm);
  padding: 0;
  transition: color 0.15s, background 0.15s;
  box-sizing: border-box;
}

.table-row-handle:hover {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

/* --- Column handles (top gutter) --- */
.table-col-handles {
  position: absolute;
  top: 0;
  left: 24px;
  height: 22px;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  visibility: hidden;
  z-index: 2;
}

.table-col-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 20px;
  margin-top: 2px;
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: 11px;
  letter-spacing: 1px;
  line-height: 1;
  border-radius: var(--radius-sm);
  padding: 0;
  transition: color 0.15s, background 0.15s;
  box-sizing: border-box;
}

.table-col-handle:hover {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

/* --- "+" column append button --- */
/* --- "+ New column" button (right side, full height) --- */
.table-col-add-btn {
  position: absolute;
  top: 22px;
  bottom: 0;
  width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--color-border);
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  border-radius: var(--radius-sm);
  visibility: hidden;
  padding: 0;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
  /* left is set dynamically by JS based on table width */
}

.table-col-add-btn:hover {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* --- "+ New row" bar (bottom) --- */
.table-add-row-btn {
  width: 100%;
  visibility: hidden;
  padding: 4px 0;
  margin-top: 2px;
  margin-bottom: 4px;
  border: 1px dashed var(--color-border);
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  line-height: 1.4;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.table-add-row-btn:hover {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* --- Visibility: show only when active (cursor inside table) --- */
.table-wrapper.table-active .table-row-handles,
.table-wrapper.table-active .table-col-handles,
.table-wrapper.table-active .table-add-row-btn,
.table-wrapper.table-active .table-col-add-btn {
  visibility: visible;
}

/* Hide gutters when not editing */
#viewer-content:not(.editing) .table-row-handles,
#viewer-content:not(.editing) .table-col-handles,
#viewer-content:not(.editing) .table-add-row-btn,
#viewer-content:not(.editing) .table-col-add-btn {
  visibility: hidden !important;
}

/* ===== Context menu (shared base) ===== */
.context-menu {
  display: none;
  position: fixed;
  min-width: 180px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-modal);
  padding: var(--space-xs) 0;
}

.context-menu.open { display: block; }

.context-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 6px 14px;
  border: none;
  background: transparent;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  text-align: start;
  cursor: pointer;
  outline: none;
}
.context-menu-item:hover,
.context-menu-item:focus-visible { background: var(--color-surface-hover); }
.context-menu-item.destructive { color: var(--color-alert-caution); }
.context-menu-item[aria-disabled="true"] {
  opacity: 0.4;
  cursor: default;
}
.context-menu-item-shortcut {
  margin-inline-start: 24px;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  white-space: nowrap;
}
.context-menu-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-xs) 0;
}

/* ===== Table context menu (extends shared base) ===== */
.table-context-menu {
  display: none;
  position: fixed;
  min-width: 180px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-modal);
  padding: var(--space-xs) 0;
}

.table-context-menu.open { display: block; }

.table-context-menu-item {
  display: block;
  width: 100%;
  padding: 6px 14px;
  border: none;
  background: transparent;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  text-align: start;
  cursor: pointer;
}
.table-context-menu-item:hover { background: var(--color-surface-hover); }
.table-context-menu-item.destructive { color: var(--color-alert-caution); }
.table-context-menu-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-xs) 0;
}

/* ===== Mermaid inline editor ===== */
.mermaid-edit-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: var(--space-sm);
  pointer-events: none;
  z-index: 5;
}

.mermaid-edit-overlay-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  cursor: pointer;
  pointer-events: auto;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transition: opacity 150ms ease-out;
}

.mermaid-diagram:hover .mermaid-edit-overlay-btn {
  opacity: 1;
}

@media (hover: none) {
  .mermaid-edit-overlay-btn {
    opacity: 1;
  }
}

.mermaid-edit-overlay-btn:hover {
  background: var(--color-surface-hover);
}

.mermaid-edit-overlay-btn svg {
  width: 14px;
  height: 14px;
}

/* Editing state */
.mermaid-diagram.mermaid-editing {
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 0;
  overflow: hidden;
}

.mermaid-editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border);
}

.mermaid-editor-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.mermaid-editor-toolbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.mermaid-editor-done-btn {
  padding: 2px 10px;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  border: none;
  cursor: pointer;
}

.mermaid-editor-done-btn:hover {
  filter: brightness(1.1);
}

.mermaid-editor-close-btn {
  font-size: 18px;
  line-height: 1;
  color: var(--color-text-tertiary);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0 4px;
}

.mermaid-editor-close-btn:hover {
  color: var(--color-text);
}

.mermaid-source-editor {
  padding: var(--space-sm);
  background: var(--color-bg);
}

.mermaid-source-textarea {
  width: 100%;
  min-height: 60px;
  max-height: 300px;
  padding: var(--space-sm);
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono, "SF Mono", "Cascadia Code", "Fira Code", "Consolas", monospace);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  resize: none;
  outline: none;
  overflow-y: auto;
  box-sizing: border-box;
}

.mermaid-source-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-subtle);
}

.mermaid-error-bar {
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-alert-warning-bg, rgba(210, 153, 34, 0.1));
  color: var(--color-alert-warning, #d29922);
  font-size: var(--font-size-sm);
  border-top: 1px solid var(--color-border);
}

.mermaid-preview {
  padding: var(--space-sm);
  max-height: 400px;
  overflow: auto;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: opacity 200ms ease;
}

.mermaid-preview.stale {
  opacity: 0.4;
}

.mermaid-preview svg {
  max-width: 100%;
  height: auto;
}

/* Hide overlay in non-edit mode */
#viewer-content:not(.editing) .mermaid-edit-overlay {
  display: none !important;
}