@layer editor {
/* ═══════════════════════════════════════════════════════════════════════════
   Tolstoy Compose — Editor
   The writing surface: neutral, precise, professional, and focused.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Scroll container ────────────────────────────────────────────────── */
:root {
  --editor-writing-comfort-bottom: clamp(160px, 22vh, 240px);
  --editor-page-end-breathing-room: clamp(180px, 26vh, 300px);
  --editor-paper-end-breathing-room: clamp(160px, 20vh, 240px);
}

@media (max-width: 599px), (max-width: 767px) and (pointer: coarse) {
  :root {
    --editor-writing-comfort-bottom: clamp(120px, 18vh, 190px);
    --editor-page-end-breathing-room: clamp(160px, 24vh, 260px);
    --editor-paper-end-breathing-room: clamp(120px, 18vh, 190px);
  }
}

#editor-viewport {
  container-type: inline-size;
  container-name: editor;
  flex: 1 1 0;
  min-block-size: 0;
  overflow-x: hidden;
  scroll-padding-block: calc(var(--topbar-h) + var(--surface-focus-scroll-padding)) calc(var(--floating-toolbar-reserve) + var(--editor-writing-comfort-bottom));
  background:
    radial-gradient(circle at 50% 12%, color-mix(in srgb, var(--surface-card) 18%, transparent) 0, transparent 42%),
    radial-gradient(ellipse at 50% 34%, color-mix(in srgb, var(--text) 2%, transparent) 0, transparent 54%),
    var(--bg-app);
}

#editor-viewport[data-document-switching="true"] {
  overflow-anchor: none;
}

/* ── Stage — owns spacing and paper placement, while #editor-viewport only scrolls. */
#editor-stage {
  box-sizing: border-box;
  min-block-size: 100%;
  inline-size: 100%;
  display: grid;
  justify-items: center;
  align-content: start;
  padding: max(56px, calc(var(--topbar-h) + var(--space-section))) 24px calc(var(--floating-toolbar-reserve) + var(--editor-page-end-breathing-room));
}

/* ── Paper — the single canonical writing frame ─────────────────────── */
#editor-paper {
  width: 100%;
  min-height: var(--app-editor-paper-min-block-size);
  background: var(--page-paper, var(--surface-document-paper));
  border: 1px solid var(--doc-page-border);
  border-radius: var(--doc-page-radius);
  box-shadow: var(--doc-page-shadow), var(--doc-page-edge-highlight);
  position: relative;
  transform: translateZ(0);
  transition:
    background-color var(--motion-duration-state) var(--motion-ease-standard),
    border-color var(--motion-duration-state) var(--motion-ease-standard),
    box-shadow var(--motion-duration-surface) var(--motion-ease-out),
    opacity var(--motion-duration-surface) var(--motion-ease-out),
    transform var(--motion-duration-surface) var(--motion-ease-out);
  animation: editor-paper-reveal var(--motion-duration-panel-sheet) var(--motion-ease-out) both;
}

#editor-paper:focus-within {
  border-color: var(--doc-page-border);
  box-shadow: var(--doc-page-shadow), var(--doc-page-edge-highlight);
}

#editor-paper[data-surface-replacing="true"] {
  opacity: .74;
  transform: translateY(var(--motion-distance-reveal)) scale(.998);
}

@keyframes editor-paper-reveal {
  from { opacity: .94; transform: translateY(var(--motion-distance-reveal)) scale(.998); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Desktop: generous centred paper rhythm ─────────────────────────── */
@media (min-width: 600px) and (pointer: fine), (min-width: 768px) {
  #editor-stage {
    padding: max(64px, calc(var(--topbar-h) + calc(var(--space-section) + var(--space-tight)))) calc(var(--space-section) + var(--space-related)) calc(var(--floating-toolbar-reserve) + var(--editor-page-end-breathing-room));
  }
  #editor-paper {
    max-width: calc(var(--ed-line-width) + 96px);
    padding: 72px 72px var(--editor-paper-end-breathing-room);
  }
}

/* ── Mobile: compact paper rhythm ───────────────────────────────────── */
@media (max-width: 599px), (max-width: 767px) and (pointer: coarse) {
  #editor-stage {
    padding: max(56px, calc(var(--topbar-h) + var(--space-cluster))) 12px calc(var(--floating-toolbar-reserve) + var(--editor-page-end-breathing-room));
  }
  #editor-paper {
    border-radius: var(--doc-page-radius);
    padding: 32px 24px var(--editor-paper-end-breathing-room);
    max-width: 100%;
  }
}

/* ── Container-responsive paper rhythm ───────────────────────────────── */
@container editor (max-width: 560px) {
  #editor-paper {
    padding-inline: clamp(20px, 6cqi, 32px);
  }
}

@container editor (min-width: 720px) {
  #editor-paper {
    padding-inline: clamp(40px, 5cqi, 72px);
  }
}

[data-theme="dark"] #editor-viewport {
  background: var(--bg-app);
}

[data-theme="dark"] #editor-paper {
  background: var(--page-paper-dark, var(--surface-document-paper-dark));
  border-color: color-mix(in srgb, #fff 9%, transparent);
}


@media (prefers-reduced-motion: reduce) {
  #editor-paper {
    animation: none;
    transition-duration: var(--motion-duration-reduced);
  }

  #editor-paper[data-surface-replacing="true"] {
    transform: none;
  }
}


/* Keep editor scrolling native. The app shell is fixed, but the scrollable
   container itself owns browser-default panning; the paper/content should not
   constrain touch gestures. */
#editor-paper,
.ProseMirror {
  touch-action: auto;
}

/* ── ProseMirror root ────────────────────────────────────────────────── */
.ProseMirror {
  font-family: var(--ed-body-font);
  font-size: var(--ed-font-size);
  line-height: var(--ed-line-height);
  color: var(--ed-body-color);
  max-width: var(--ed-line-width);
  margin: 0 auto;
  outline: none;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* Hyphenation off — toggled via appearance panel */
[data-hyphenation="off"] .ProseMirror {
  hyphens: none;
}

.ProseMirror > :first-child {
  margin-block-start: 0;
}

#editor-paper {
  scroll-margin-block-start: var(--surface-focus-scroll-padding);
}

.ProseMirror :where(h1, h2, h3, h4, h5, h6, [data-node-id], [data-review-id], .review-anchor, .citation-ref, mark) {
  scroll-margin-block-start: calc(var(--topbar-h) + calc(var(--space-section) + var(--space-tight)));
  scroll-margin-block-end: calc(var(--floating-toolbar-reserve) + var(--editor-writing-comfort-bottom));
}

/* ── Placeholder ─────────────────────────────────────────────────────── */
.ProseMirror p.is-editor-empty:first-child::before {
  content: attr(data-placeholder);
  float: left;
  color: var(--text-muted);
  pointer-events: none;
  height: 0;
  font-style: italic;
}

/* ── Headings ────────────────────────────────────────────────────────── */
.ProseMirror h1,
.ProseMirror h2,
.ProseMirror h3,
.ProseMirror h4,
.ProseMirror h5,
.ProseMirror h6 {
  font-family: var(--ed-heading-font);
  color: var(--ed-heading-color);
  line-height: var(--ed-line-height);
  letter-spacing: -0.02em;
  margin-block-start: calc(var(--ed-paragraph-spacing) * 2.25);
  margin-block-end: calc(var(--ed-paragraph-spacing) * 0.625);
}

.ProseMirror h1 { font-size: var(--ed-h1-size); font-weight: 700; margin-block-start: 0; }
.ProseMirror h2 { font-size: var(--ed-h2-size); font-weight: 600; }
.ProseMirror h3 { font-size: var(--ed-h3-size); font-weight: 600; }
.ProseMirror h4 { font-size: var(--ed-h4-size); font-weight: 600; }
.ProseMirror h5 { font-size: var(--ed-h5-size); font-weight: 600; }
.ProseMirror h6 { font-size: var(--ed-h6-size); font-weight: 600; color: var(--ed-heading-color); }

/* ── Paragraphs ──────────────────────────────────────────────────────── */
.ProseMirror p { margin-block: 0 var(--ed-paragraph-spacing); }
.ProseMirror p:last-child { margin-block-end: 0; }

/* ── Lists ───────────────────────────────────────────────────────────── */
.ProseMirror ul,
.ProseMirror ol {
  padding-left: 1.6em;
  margin-block: 0 var(--ed-paragraph-spacing);
}

.ProseMirror li { margin-block-end: calc(var(--ed-paragraph-spacing) * 0.3125); }
.ProseMirror li p { margin-block-end: calc(var(--ed-paragraph-spacing) * 0.25); }

/* ── Blockquote ──────────────────────────────────────────────────────── */
.ProseMirror blockquote {
  border-left: 3px solid var(--accent);
  margin-block: calc(var(--ed-paragraph-spacing) * 1.5);
  margin-inline: 0;
  padding: 0.2em 0 0.2em 1.2em;
  color: var(--text-sec);
  font-style: italic;
}

/* ── Code ────────────────────────────────────────────────────────────── */
.ProseMirror code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--fill-subtle);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 0.1em 0.4em;
}

.ProseMirror pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--fill-subtle);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 1em 1.2em;
  overflow-x: auto;
  margin-block-end: var(--ed-paragraph-spacing);
}

.ProseMirror pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
}

/* ── Horizontal rule ─────────────────────────────────────────────────── */
.ProseMirror hr {
  border: none;
  border-top: 1px solid var(--border-strong);
  margin-block: calc(var(--ed-paragraph-spacing) * 2.5);
  margin-inline: 0;
}

/* ── Links ───────────────────────────────────────────────────────────── */
.ProseMirror a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.ProseMirror a:hover { text-decoration-thickness: 2px; }

/* ── Strong / em ─────────────────────────────────────────────────────── */
.ProseMirror strong { font-weight: 700; }
.ProseMirror em { font-style: italic; }
.ProseMirror s { text-decoration: line-through; color: var(--text-sec); }
.ProseMirror u { text-decoration: underline; text-underline-offset: 4px; }

/* ── Highlight ───────────────────────────────────────────────────────── */
.ProseMirror mark {
  /* Fallback for marks without an explicit colour */
  background: var(--doc-highlight-bg);
  color: var(--doc-highlight-text);
  border-radius: 2px;
  padding: 0.05em 0.1em;
  /* TipTap writes style="background-color:…" which overrides the background above */
}

/* In dark mode the highlight backgrounds are dark, so text must be light */
[data-theme="dark"] .ProseMirror mark {
  color: var(--doc-highlight-text-dark);
}

/* ── Images ──────────────────────────────────────────────────────────── */
.ProseMirror img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
  margin: calc(var(--ed-paragraph-spacing) * 1.5) auto;
  cursor: pointer;
}

/* Selected image ring */
.ProseMirror img.ProseMirror-selectednode,
.ProseMirror .ProseMirror-selectednode img {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
}


/* ── Task lists (stock TipTap ListKit) ─────────────────────────────────
   TipTap serializes task items as li[data-type="taskItem"], but its live
   TaskItem node view renders the editable DOM as ul[data-type="taskList"] > li
   with data-checked and no guaranteed data-type attribute. Keep both selectors
   so editor, saved HTML, print/export shells, and future renderer paths align. */
.ProseMirror ul[data-type="taskList"] {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
}

.ProseMirror ul[data-type="taskList"] > li,
.ProseMirror li[data-type="taskItem"] {
  display: flex;
  align-items: flex-start;
  gap: 0.6em;
  margin: 0 0 calc(var(--ed-paragraph-spacing) * 0.4375);
  list-style: none;
}

.ProseMirror ul[data-type="taskList"] > li > label,
.ProseMirror li[data-type="taskItem"] > label {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 1.6em;
  user-select: none;
}

.ProseMirror ul[data-type="taskList"] > li > label input[type="checkbox"],
.ProseMirror li[data-type="taskItem"] > label input[type="checkbox"] {
  inline-size: 1em;
  block-size: 1em;
  accent-color: var(--accent);
  margin: 0.2em 0 0;
}

.ProseMirror ul[data-type="taskList"] > li > div,
.ProseMirror li[data-type="taskItem"] > div {
  flex: 1 1 auto;
  min-width: 0;
}

.ProseMirror ul[data-type="taskList"] > li > div > p:first-child,
.ProseMirror li[data-type="taskItem"] > div > p:first-child { margin-top: 0; }
.ProseMirror ul[data-type="taskList"] > li > div > p:last-child,
.ProseMirror li[data-type="taskItem"] > div > p:last-child  { margin-bottom: 0; }

/* ── Stock TipTap image resize node view ─────────────────────────────── */
.ProseMirror [data-resize-container][data-node="image"] {
  justify-content: center;
  max-width: 100%;
  margin: calc(var(--ed-paragraph-spacing) * 1.5) auto;
}

.ProseMirror [data-resize-container][data-node="image"] [data-resize-wrapper] {
  max-width: 100%;
  line-height: 0;
}

.ProseMirror [data-resize-container][data-node="image"] img {
  margin: 0;
  max-width: 100%;
  height: auto;
}

.ProseMirror [data-resize-container][data-node="image"] [data-resize-handle] {
  width: 14px;
  height: 14px;
  border: 2px solid var(--bg-canvas);
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  transform: translate(50%, 50%);
  transition: opacity var(--motion-duration-micro) var(--motion-ease-standard);
  z-index: 2;
}

.ProseMirror [data-resize-container][data-node="image"] [data-resize-handle="top-left"] { transform: translate(-50%, -50%); }
.ProseMirror [data-resize-container][data-node="image"] [data-resize-handle="top-right"] { transform: translate(50%, -50%); }
.ProseMirror [data-resize-container][data-node="image"] [data-resize-handle="bottom-left"] { transform: translate(-50%, 50%); }
.ProseMirror [data-resize-container][data-node="image"] [data-resize-handle="bottom-right"] { transform: translate(50%, 50%); }

.ProseMirror [data-resize-container][data-node="image"]:hover [data-resize-handle],
.ProseMirror [data-resize-container][data-node="image"]:focus-within [data-resize-handle],
.ProseMirror [data-resize-container][data-node="image"][data-resize-state="true"] [data-resize-handle] {
  opacity: 1;
}

/* ── Tables ──────────────────────────────────────────────────────────── */
.ProseMirror table {
  border-collapse: collapse;
  width: 100%;
  /* Fixed layout prevents columns exploding as you type — each column
     shares the available width equally rather than growing to fit content */
  table-layout: fixed;
  margin-block-end: var(--ed-paragraph-spacing);
  font-size: 0.9em;
  /* Clip any overflow rather than letting the table break the layout */
  overflow: hidden;
}

.ProseMirror th,
.ProseMirror td {
  border: 1px solid var(--border-strong);
  padding: 0.5em 0.75em;
  vertical-align: top;
  text-align: left;
  /* Words wrap within the fixed-width cell rather than forcing it wider */
  word-break: break-word;
  overflow-wrap: break-word;
  /* Prevent any single cell from ever overflowing its column */
  overflow: hidden;
}

.ProseMirror th {
  background: var(--fill-subtle);
  font-weight: 600;
}

.ProseMirror .selectedCell::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(var(--accent-rgb), 0.14);
  pointer-events: none;
}

.ProseMirror td, .ProseMirror th { position: relative; }

/* ── Citation nodes ──────────────────────────────────────────────────── */
.citation-ref {
  color: var(--accent);
  font-size: 0.75em;
  vertical-align: super;
  line-height: 0;
  cursor: pointer;
  font-family: var(--font-ui);
}

.citation-ref:hover { text-decoration: underline; }

/* ── Notes section ───────────────────────────────────────────────────── */
#notes-section {
  max-width: var(--ed-line-width);
  margin: 3em auto 0;
  padding-top: 0;
}

/* The top rule only appears when there IS content */
#notes-section:not(:empty) {
  border-top: 1px solid var(--border);
  padding-top: 1.5em;
}

#notes-section:empty { display: none; }

.notes-block { margin-block-end: calc(var(--ed-paragraph-spacing) * 1.5); }

.notes-block-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-block-end: var(--ed-paragraph-spacing);
  font-family: var(--font-ui);
}

/* Separator between Footnotes and Endnotes blocks */
.notes-separator {
  height: 1px;
  background: var(--border);
  margin-block: calc(var(--ed-paragraph-spacing) * 1.5);
  margin-inline: 0;
}

.note-item {
  font-family: var(--ed-body-font);
  font-size: 0.82em;
  color: var(--text-sec);
  line-height: var(--ed-line-height);
  margin-block-end: calc(var(--ed-paragraph-spacing) * 0.875);
  display: flex;
  gap: 0.5em;
}

.note-item .note-number {
  color: var(--accent);
  font-size: 0.9em;
  flex-shrink: 0;
  min-width: 1.5em;
  cursor: pointer;
}
.note-item .note-number:hover { text-decoration: underline; }

/* ── Selection ───────────────────────────────────────────────────────── */
.ProseMirror ::selection {
  background: rgba(var(--accent-rgb), 0.2);
}

/* ── Cursor ──────────────────────────────────────────────────────────── */
.ProseMirror-focused { caret-color: var(--accent); }


/* ── Drag and drop ───────────────────────────────────────────────────── */
.ProseMirror .ProseMirror-gapcursor {
  display: none;
  pointer-events: none;
  position: absolute;
}

.ProseMirror .ProseMirror-gapcursor::after {
  content: '';
  display: block;
  position: absolute;
  top: -2px;
  width: 20px;
  border-top: 2px solid var(--text);
}

.ProseMirror-focused .ProseMirror-gapcursor { display: block; }

/* ── Search highlight — CSS Custom Highlight API ─────────────────────── */
/* These ::highlight() pseudo-elements are painted by the browser as a
   separate layer. Zero DOM mutations inside ProseMirror. */
::highlight(search-results) {
  background-color: rgba(var(--accent-rgb), 0.22);
  color: inherit;
}

::highlight(search-current) {
  background-color: rgba(var(--accent-rgb), 0.55);
  color: inherit;
}

/* ════════════════════════════════════════════════════════════════════════
   PRINT / PDF EXPORT — strips all app chrome, formats document only
   ════════════════════════════════════════════════════════════════════════ */
@media print {
  /* Hide everything except the document content */
  #sidebar,
  #topbar,
  #toolbar-row,
  #document-info-popover,
  #files-export-dropdown,
  #selection-inspector,
  #shortcuts-modal,
  #overlay,
  [role="toolbar"] {
    display: none !important;
  }

  /* Reset the layout */
  html, body, #app, #main, #body, #canvas {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
    background: var(--doc-print-bg) !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  #editor-viewport {
    overflow: visible !important;
    height: auto !important;
    padding: 0 !important;
  }

  #editor-paper {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    background: var(--doc-print-bg) !important;
  }

  #editor {
    padding: 0 !important;
    min-height: auto !important;
  }

  /* Typography — clean for print */
  .ProseMirror {
    font-size: 11pt !important;
    line-height: var(--ed-line-height) !important;
    color: var(--doc-print-text) !important;
    max-width: 100% !important;
  }

  .ProseMirror h1 { font-size: 20pt !important; margin: 0 0 12pt !important; }
  .ProseMirror h2 { font-size: 16pt !important; margin: 16pt 0 8pt !important; }
  .ProseMirror h3 { font-size: 13pt !important; margin: 12pt 0 6pt !important; }
  .ProseMirror p  { margin: 0 0 8pt !important; orphans: 3; widows: 3; }

  .ProseMirror a { color: var(--doc-print-text) !important; text-decoration: underline !important; text-underline-offset: 4px !important; }
  .ProseMirror u { text-underline-offset: 4px !important; }

  /* Avoid breaking inside these */
  .ProseMirror blockquote,
  .ProseMirror pre,
  .ProseMirror table { page-break-inside: avoid; }

  .ProseMirror img {
    display: block !important;
    max-width: 100% !important;
    height: auto !important;
    margin: calc(var(--ed-paragraph-spacing) * 1.5) auto !important;
    float: none !important;
  }

  /* Page margins */
  @page {
    margin: 2cm 2.5cm;
    size: A4;
  }

  /* Hide search highlights (CSS Custom Highlight API) */
  ::highlight(search-results),
  ::highlight(search-current) {
    background-color: transparent !important;
    color: inherit !important;
  }

  /* Notes section */
  #notes-section {
    border-top: 1px solid var(--doc-print-border) !important;
    margin-top: 24pt !important;
    padding-top: 12pt !important;
    font-size: 9pt !important;
    color: var(--doc-print-muted) !important;
  }
}


/* ═══════════════════════════════════════════════════════════════════════
   Touch / mobile ownership — editor
   Editor surface and reading adjustments live with the editor component.
   ═══════════════════════════════════════════════════════════════════════ */

@media (max-width: 599px), (max-width: 767px) and (pointer: coarse) {
  #editor-viewport {
    scroll-behavior: auto;
  }

  .ProseMirror {
    font-size: var(--ed-font-size);
    line-height: var(--ed-line-height);
  }
}

:root:is([dir="rtl"]) .ProseMirror {
  direction: rtl;
  text-align: right;
}
}

@layer components {
  .ProseMirror th,
  .ProseMirror td {
    transition: background-color var(--motion-duration-micro) var(--motion-ease-standard), border-color var(--motion-duration-micro) var(--motion-ease-standard);
  }
}