/* Phase 7 Stage-2a — Mirror Editor styling inside the product.
 *
 * Every rule is scoped under `.mirror-mode` (the class app.js adds to #editor
 * when the mirror flag is on), so this stylesheet is completely inert in the
 * normal Clean-view path — flag-off is unaffected. Typography is ported from the
 * spike's `.paper` rules so the ProseMirror editor reads like a manuscript, not a
 * code box; the widget styles are the spike's chip palette. */

/* ---- Editor surface + typography (≈ Clean view) ---- */
.mirror-mode { display: flex; flex-direction: column; height: 100%; overflow: hidden; background: #f3f4f6; }
.mirror-mode .mirror-wysiwyg { flex: 1; overflow: auto; }
.mirror-mode .mirror-wysiwyg.hidden, .mirror-mode .mirror-source.hidden { display: none; }
.mirror-mode .mirror-source { flex: 1; display: flex; flex-direction: column; min-height: 0; background: #fff; }
.mirror-mode .mirror-source-host { flex: 1; min-height: 0; overflow: hidden; }
.mirror-mode .mirror-source-host .cm-editor { height: 100%; font-size: 13px; }
.mirror-mode .mirror-source-host .cm-content { font-family: 'Menlo', 'Courier New', monospace; }
/* Word-style status bar along the bottom of the editor pane (Source + Editor).
   Left: the Source-only Apply cluster. Right: page/word counts + Split toggle. */
.mirror-mode .mirror-statusbar { display: flex; align-items: center; gap: 10px; padding: 6px 12px; border-top: 1px solid #e3e6ea; background: #f8fafc; flex: 0 0 auto; }
.mirror-mode .mirror-statusbar-apply { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 0 1 auto; }
.mirror-mode .mirror-statusbar-apply.hidden { display: none; }
.mirror-mode .mirror-statusbar-apply .mirror-apply-btn { flex: 0 0 auto; }
/* The hint ellipsizes so the whole bar stays one line even in the narrow
   split-view left pane; the counts + Split toggle on the right never shrink. */
.mirror-mode .mirror-statusbar-apply .mirror-source-hint { flex: 0 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mirror-mode .mirror-statusbar-info { margin-left: auto; flex: 0 0 auto; display: flex; align-items: center; gap: 14px; }
.mirror-mode .mirror-statusbar-count { font-size: 11px; color: #6b7280; white-space: nowrap; font-variant-numeric: tabular-nums; }
/* Page navigator: "Page [ n ] of N" — indicator + go-to-page box (page-box Editor only). */
.mirror-mode .mirror-statusbar-pagenav { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: #6b7280; white-space: nowrap; }
.mirror-mode .mirror-statusbar-pagenav.hidden { display: none; }
.mirror-mode .mirror-pagenav-input { width: 42px; font: inherit; font-size: 11px; text-align: center; color: #374151; background: #fff; border: 1px solid #d3d8de; border-radius: 5px; padding: 2px 4px; font-variant-numeric: tabular-nums; -moz-appearance: textfield; }
.mirror-mode .mirror-pagenav-input:focus { outline: none; border-color: #2e5c7a; box-shadow: 0 0 0 2px rgba(46,92,122,0.15); }
.mirror-mode .mirror-pagenav-input::-webkit-inner-spin-button, .mirror-mode .mirror-pagenav-input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.mirror-mode .mirror-pagenav-total { color: #6b7280; }
.mirror-mode .mirror-statusbar-split { font: inherit; font-size: 11px; color: #374151; background: #fff; border: 1px solid #d3d8de; border-radius: 5px; padding: 3px 10px; cursor: pointer; white-space: nowrap; }
/* Re-assert colour on hover so the generic button:hover accent (rust) can't leak in. */
.mirror-mode .mirror-statusbar-split:hover { background: #eef1f4; color: #374151; }
.mirror-mode .mirror-statusbar-split.is-active { background: #2e5c7a; color: #fff; border-color: #2e5c7a; }
.mirror-mode .mirror-statusbar-split.is-active:hover { background: #24506b; color: #fff; }
.mirror-mode .mirror-statusbar-split.hidden { display: none; }
.mirror-apply-btn { font: inherit; font-size: 12px; padding: 4px 12px; border-radius: 5px; cursor: pointer; background: #2e5c7a; color: #fff; border: 1px solid #2e5c7a; }
/* Re-assert colour + border on hover so the generic `button:hover` (which sets
   `color: var(--accent)`, a rust/red) cannot leak in; the hover cue is a bolder
   label plus the slightly darker blue, never a colour change. */
.mirror-apply-btn:hover { background: #24506b; border-color: #24506b; color: #fff; font-weight: 700; }
.mirror-apply-btn.hidden { display: none; }
.mirror-advanced-btn { font: inherit; font-size: 12px; padding: 4px 12px; border-radius: 5px; cursor: pointer; background: #fff; color: #5b6470; border: 1px solid #cfd4da; }
.mirror-advanced-btn:hover { background: #f1f3f5; }
.mirror-advanced-btn.is-active { background: #fdecea; color: #a6342b; border-color: #f0b8b2; }
.mirror-source-hint { font-size: 11px; color: #8a9099; }
.mirror-source-badge { font-size: 11px; color: #8a5a00; background: #fff4d6; border: 1px solid #f0d59a; border-radius: 4px; padding: 2px 8px; }
.mirror-source-badge.hidden { display: none; }
.mirror-mode .ProseMirror {
  --mirror-parindent: 0.5in;
  max-width: 7.0in; margin: 18px auto; min-height: 9in;
  background: #fff; box-shadow: 0 1px 4px rgba(0,0,0,.16);
  padding: 0.9in 1.0in; outline: none;
  font-family: var(--mirror-fontfamily, 'Times New Roman', Georgia, serif);
  font-size: 12pt; line-height: var(--mirror-linespacing, 1.2); color: #111;
  /* Document-wide default paragraph alignment, read from the source in
     applyDocStyleVars (justify like the LaTeX PDF, or left for \RaggedRight
     docs). Paragraphs inherit it; alignment containers (center/flushleft/
     flushright) set their own text-align and override for their subtree. */
  text-align: var(--mirror-textalign, justify);
  /* ProseMirror requires an explicit white-space (it warns otherwise). With the default
     `normal`, a space typed next to an existing space collapses to zero rendered width, so the
     caret does not advance and the space is invisible — the editor feels frozen when you press
     Space at a sentence start after ". " (bug #5, 2026-07-22). `break-spaces` gives every space
     width (Word-like) and keeps the off-screen brain and the projected clones wrapping
     identically, which the paginator depends on. */
  white-space: break-spaces;
}
/* Page-box mode: the visible pages are re-fragmented clones under boxHost
   (.mirror-pagebox), OUTSIDE .ProseMirror, so carry the alignment there too. */
.mirror-mode .mirror-pagebox { text-align: var(--mirror-textalign, justify); }
.mirror-mode .ProseMirror p { margin: 0; text-indent: var(--mirror-parindent); }
.mirror-mode .ProseMirror h1 + p, .mirror-mode .ProseMirror h2 + p,
.mirror-mode .ProseMirror h3 + p, .mirror-mode .ProseMirror h4 + p,
.mirror-mode .ProseMirror h5 + p, .mirror-mode .ProseMirror h6 + p { text-indent: 0; }
/* Per-paragraph indent suppression (Word: Backspace removes a paragraph's indent). */
.mirror-mode .ProseMirror p.mirror-noindent { text-indent: 0; }
.mirror-mode .ProseMirror h1, .mirror-mode .ProseMirror h2, .mirror-mode .ProseMirror h3,
.mirror-mode .ProseMirror h4, .mirror-mode .ProseMirror h5, .mirror-mode .ProseMirror h6 {
  font-family: var(--mirror-fontfamily, 'Times New Roman', Georgia, serif);
  font-weight: 700; line-height: 1.3; margin: .8em 0 .4em;
}
.mirror-mode .ProseMirror h1 { font-size: 17pt; }
.mirror-mode .ProseMirror h2 { font-size: 15pt; }
.mirror-mode .ProseMirror h3 { font-size: 13pt; }
.mirror-mode .ProseMirror h4 { font-size: 12pt; font-style: italic; }
.mirror-mode .ProseMirror h5, .mirror-mode .ProseMirror h6 { font-size: 12pt; }
.mirror-mode .ProseMirror ul, .mirror-mode .ProseMirror ol { margin: .4em 0; padding-left: 1.6em; }
.mirror-mode .ProseMirror li { margin: .15em 0; }
.mirror-mode .ProseMirror li p { text-indent: 0; }
.mirror-mode .ProseMirror strong { font-weight: 700; }
.mirror-mode .ProseMirror em { font-style: italic; }
/* \texttt inline code: monospace, tinted like a code span. The body font rule would
   otherwise override the <code> element's UA monospace default. */
.mirror-mode .ProseMirror code.mirror-mono {
  font-family: 'Menlo', 'Courier New', monospace; font-size: .9em;
  background: rgba(0,0,0,0.05); border-radius: 3px; padding: 0 2px;
}
.mirror-mode .ProseMirror[contenteditable="true"] { caret-color: #2e5c7a; }
.mirror-mode .ProseMirror-selectednode { outline: 2px solid #2e5c7a; outline-offset: 1px; }

/* ---- Inline marks / chips ---- */
.mirror-mode .mirror-hl { border-radius: 2px; padding: 0 1px; }
.mirror-mode .mirror-cite {
  /* inline (not inline-block) + normal wrapping so a multi-key citation wraps
     across lines like text instead of one over-wide pill. */
  display: inline; padding: 0 2px; border-radius: 4px;
  background: rgba(46, 92, 122, 0.10); color: rgba(46, 92, 122, 0.95);
  white-space: normal; cursor: pointer;
}
/* Frame as a parenthetical citation, matching the printed PDF (#pg-print-root
   .mirror-cite uses the same "(" / ")"). */
.mirror-mode .mirror-cite::before { content: '('; }
.mirror-mode .mirror-cite::after { content: ')'; }
/* Numeric styles (IEEE/Vancouver) frame as "[1, 2]". */
.mirror-mode .mirror-cite.numeric::before { content: '['; }
.mirror-mode .mirror-cite.numeric::after { content: ']'; }
/* An unlinked citation: a \cite whose key has no resolvable library reference (no
   BibTeX/CSL). Muted amber with a dashed underline so it reads as "needs linking" rather
   than as content or a working link; clicking it opens the popover's Link search (bug #1). */
.mirror-mode .mirror-cite.mirror-cite-unlinked {
  color: #9a6a00;
  text-decoration: underline dashed 1px;
  text-underline-offset: 2px;
}
/* PrintView is a preview of the printed PDF, so its citations render as plain
   parenthesised body text (identical to #pg-print-root in the @media print block),
   not the editor's blue chip. Placed after the base + unlinked rules so it wins on
   equal specificity; the "(" / ")" (or "[" / "]") delimiters are inherited. */
.printview-doc .mirror-cite { background: none; border: 0; padding: 0; border-radius: 0; color: #000; cursor: default; }
.printview-doc .mirror-cite.mirror-cite-unlinked { color: #000; text-decoration: none; }
/* A resolved \ref cross-reference renders as its target's NUMBER (a live cross-ref),
   as a subtle inline chip so it reads as a reference rather than plain typed text. An
   unresolved ref (dangling label, or a target kind not yet numbered) keeps the raw
   command in the amber monospace look, so nothing is hidden. */
.mirror-mode .mirror-ref {
  display: inline; padding: 0 2px; border-radius: 4px;
  background: rgba(46, 92, 122, 0.08); color: rgba(46, 92, 122, 0.95);
  cursor: default; white-space: normal;
}
.mirror-mode .mirror-ref.mirror-ref-unresolved {
  font-family: 'Menlo', 'Courier New', monospace; font-size: .82em;
  background: #fbf3e2; color: #8a5a00; border: 1px solid #ecd9a8; padding: 0 3px;
}
.printview-doc .mirror-ref { background: none; border: 0; padding: 0; border-radius: 0; color: #000; }
.printview-doc .mirror-ref.mirror-ref-unresolved { font-family: inherit; font-size: inherit; border: 0; }
.mirror-mode .mirror-rawinline {
  font-family: 'Menlo', 'Courier New', monospace; font-size: .82em;
  background: #fbf3e2; color: #8a5a00; border: 1px solid #ecd9a8; border-radius: 4px; padding: 0 3px; cursor: pointer;
}
.mirror-mode .mirror-math { cursor: pointer; padding: 0 1px; border-radius: 3px; }
.mirror-mode .mirror-math:hover { background: #eef4fb; outline: 1px solid #bcd; }
.mirror-mode .mirror-math-display { display: block; text-align: center; margin: .6em 0; }

/* ---- Block widgets: figure / table / raw ---- */
.mirror-mode .mirror-figure { margin: 1em 0; text-align: center; }
.mirror-mode .mirror-figure img { max-width: 100%; max-height: 320px; border: 1px solid #e0e3e7; border-radius: 4px; background: #fff; }
.mirror-mode .mirror-figure-placeholder {
  display: inline-block; padding: 24px 32px; color: #8a9099; font-size: 13px;
  border: 1px dashed #c7ccd2; border-radius: 6px; background: #f7f9fb; font-family: 'Menlo', monospace;
}
.mirror-mode .mirror-figcaption { margin-top: 6px; font-size: 10.5pt; color: #444; font-style: italic; cursor: text; }
.mirror-mode .mirror-figcaption:hover { color: #2e5c7a; }
.mirror-mode .mirror-table { margin: .8em 0; border: 1px solid #cdd8e3; border-radius: 6px; background: #f5f9fd; padding: 8px 10px; }
.mirror-mode .mirror-table-head { display: flex; align-items: center; gap: 8px; }
.mirror-mode .mirror-table-name { font-family: 'Menlo', monospace; font-size: 12px; font-weight: 600; color: #2e5c7a; }
.mirror-mode .mirror-table-tag { font-size: 10px; text-transform: uppercase; letter-spacing: .5px; color: #5b7a96; background: #e3eef7; border-radius: 3px; padding: 1px 5px; }
.mirror-mode .mirror-table-caption { margin-top: 4px; font-size: 11px; color: #5a6b7a; font-style: italic; }
.mirror-mode .mirror-rawblock { margin: .7em 0; border: 1px dashed #d2b87a; border-radius: 6px; background: #fdf8ee; padding: 8px 10px; }
.mirror-mode .mirror-blockquote { margin: .7em 0 .7em 1.5em; padding-left: .9em; border-left: 3px solid #cbd5e1; color: #334155; font-style: italic; }

/* Page break / section break — a labelled divider. The break takes effect in the
   LaTeX PDF; the editor shows where it is (PDF-faithful). A page break is a subtle
   dashed grey rule; a section break (column-layout change) is a solid accent rule. */
.mirror-mode .mirror-docbreak {
  display: flex; align-items: center; gap: 0; margin: 1.1em 0;
  user-select: none; -webkit-user-select: none;
}
.mirror-mode .mirror-docbreak::before,
.mirror-mode .mirror-docbreak::after {
  content: ""; flex: 1 1 auto; border-top: 1px dashed rgba(0, 0, 0, 0.22);
}
.mirror-mode .mirror-docbreak-label {
  display: inline-flex; align-items: center; gap: .5em; flex: 0 0 auto;
  padding: 0 .85em; font-size: .68rem; letter-spacing: .06em; text-transform: uppercase;
  color: #8a9099; white-space: nowrap;
}
.mirror-mode .mirror-docbreak-title { font-weight: 700; }
.mirror-mode .mirror-docbreak[data-kind="section"]::before,
.mirror-mode .mirror-docbreak[data-kind="section"]::after { border-top: 1px solid rgba(46, 92, 122, 0.55); }
.mirror-mode .mirror-docbreak[data-kind="section"] .mirror-docbreak-label { color: #24506b; }
.mirror-mode .mirror-docbreak.ProseMirror-selectednode { outline: 2px solid rgba(46, 92, 122, 0.6); outline-offset: 3px; border-radius: 4px; }
/* In the read-only print/PDF-faithful views, hide the editor's own divider chrome: the page
   itself already breaks (the box paginator opens a fresh .pgx-page → a fresh @page), so the
   printed PDF gets the break without the on-screen marker — as Word prints a break, not its label. */
.printview-doc .mirror-docbreak,
.paginated-print .mirror-docbreak { display: none; }
.mirror-mode .mirror-inline-image { max-width: 100%; height: auto; vertical-align: middle; }
.mirror-mode .mirror-footnote-marker { color: #2563eb; cursor: help; font-weight: 600; }
/* Endnotes: a numbered superscript reference. The number is a CSS counter in
   document order, reset PER CONTENT ROOT so the page-box brain and the visible
   page projection never cross-count (each subtree numbers 1..n on its own). This
   renumbers automatically on insert/delete with no nodeview update(). The
   collected "Notes" section is produced at compile by the endnotes package. */
.mirror-mode .mirror-wysiwyg,
.mirror-mode .mirror-pagebox-brain { counter-reset: cw-endnote; }
.mirror-mode .mirror-endnote-marker {
  counter-increment: cw-endnote;
  color: #2563eb; font-weight: 600; cursor: help; padding: 0 1px;
}
.mirror-mode .mirror-endnote-marker::before { content: counter(cw-endnote); }
.mirror-mode .mirror-url { color: #2563eb; text-decoration: underline; word-break: break-all; }
/* An internal cross-reference (\hyperref[anchor]{label}) reads as a link in the source
   document, so it carries the link colour — but no underline, since it points inside the
   document rather than out to the web. */
.mirror-mode .mirror-xref { color: #2563eb; }
.mirror-mode .mirror-rawblock-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.mirror-mode .mirror-rawblock-name { font-family: 'Menlo', 'Courier New', monospace; font-size: 12px; font-weight: 600; color: #8a5a00; }
.mirror-mode .mirror-rawblock-name::before { content: '⟨ '; opacity: .6; }
.mirror-mode .mirror-rawblock-name::after { content: ' ⟩'; opacity: .6; }
.mirror-mode .mirror-rawblock-tag { font-size: 10px; text-transform: uppercase; letter-spacing: .5px; color: #b08a3a; background: #f5e9cf; border-radius: 3px; padding: 1px 5px; }
.mirror-mode .mirror-rawblock-preview { display: block; font-family: 'Menlo', 'Courier New', monospace; font-size: 11px; color: #6b5a33; white-space: pre-wrap; word-break: break-word; }
.mirror-mode .mirror-edit-btn {
  margin-left: auto; font: inherit; font-size: 11px; cursor: pointer;
  border: 1px solid #c7ccd2; background: #fff; color: #2e5c7a; border-radius: 4px; padding: 1px 8px;
}
.mirror-mode .mirror-edit-btn:hover { background: #eef4fb; border-color: #9bb6cc; }

/* ---------- Inline comments (Stage 2c) ---------- */
/* Anchor highlight inside the manuscript; mirrors the CodeMirror look. */
.mirror-mode .mirror-comment-anchor {
  background-color: rgba(255, 200, 100, 0.18);
  border-bottom: 1.5px dotted rgba(200, 130, 50, 0.7);
  cursor: pointer;
}
.mirror-mode .mirror-comment-anchor:hover { background-color: rgba(255, 200, 100, 0.32); }
/* Transient flash when the Comments panel reveals a passage (click a card). */
.mirror-mode .mirror-comment-anchor.mirror-comment-flash { animation: mirror-comment-flash 1.6s ease-out; }
@keyframes mirror-comment-flash {
  0%, 30% { background-color: rgba(255, 180, 60, 0.75); box-shadow: 0 0 0 3px rgba(255, 180, 60, 0.35); }
  100%    { background-color: rgba(255, 200, 100, 0.18); box-shadow: 0 0 0 0 rgba(255, 180, 60, 0); }
}

/* ---------- Outline bookmarks ---------- */
/* Subtle in-text cue on a word marked into the Outline. Blue, to read distinctly
   from the amber comment anchor. Decoration-only — never serialized, so the PDF
   is unaffected. */
.mirror-mode .mirror-bookmark-anchor {
  background-color: rgba(80, 140, 220, 0.14);
  border-bottom: 1.5px dotted rgba(50, 110, 200, 0.7);
  cursor: pointer;
}
.mirror-mode .mirror-bookmark-anchor:hover { background-color: rgba(80, 140, 220, 0.28); }
/* Transient flash when the Outline reveals a marked word (click its entry). */
.mirror-mode .mirror-bookmark-anchor.mirror-bookmark-flash { animation: mirror-bookmark-flash 1.6s ease-out; }
@keyframes mirror-bookmark-flash {
  0%, 30% { background-color: rgba(60, 120, 210, 0.7); box-shadow: 0 0 0 3px rgba(60, 120, 210, 0.3); }
  100%    { background-color: rgba(80, 140, 220, 0.14); box-shadow: 0 0 0 0 rgba(60, 120, 210, 0); }
}

/* Right-click "Add comment" menu and the click-to-read tooltip are appended to
   document.body (not inside .mirror-mode), so these rules are unscoped. */
.mirror-comment-menu {
  position: fixed; z-index: 9999; background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 4px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18); padding: 4px 0; min-width: 150px;
  font-size: 13px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.mirror-comment-menu { max-height: 340px; overflow-y: auto; }   /* long synonym lists scroll */
.mirror-comment-menu-item { padding: 6px 14px; cursor: pointer; user-select: none; }
.mirror-comment-menu-item:hover { background: rgba(122, 59, 46, 0.10); }
/* Section header (e.g. "Synonyms for …") — a label, not an action. */
.mirror-menu-header {
  padding: 5px 14px 3px; font-size: 11px; font-weight: 600; letter-spacing: 0.02em;
  color: #999; text-transform: none; user-select: none; cursor: default;
}
/* Non-actionable rows: "Looking up…", "No synonyms found". */
.mirror-comment-menu-item.is-disabled { color: #aaa; cursor: default; }
.mirror-comment-menu-item.is-disabled:hover { background: transparent; }
/* Divider between the synonyms section and Add comment. */
.mirror-menu-sep { height: 1px; margin: 4px 0; background: rgba(0, 0, 0, 0.10); }

.mirror-comment-tooltip {
  position: fixed; z-index: 9999; background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18); padding: 8px 12px; max-width: 360px;
  font-size: 13px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.mirror-comment-tooltip .mirror-comment-author { font-size: 11px; color: #888; margin-bottom: 4px; }
.mirror-comment-tooltip .mirror-comment-body { color: #2a2a2a; margin-bottom: 8px; white-space: pre-wrap; line-height: 1.4; }
.mirror-comment-tooltip .mirror-comment-actions { display: flex; gap: 6px; }
.mirror-comment-tooltip .mirror-comment-edit,
.mirror-comment-tooltip .mirror-comment-delete {
  background: rgba(0, 0, 0, 0.04); border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 3px;
  padding: 3px 10px; cursor: pointer; font-size: 11px; color: #2a2a2a;
}
.mirror-comment-tooltip .mirror-comment-edit:hover,
.mirror-comment-tooltip .mirror-comment-delete:hover { background: rgba(122, 59, 46, 0.10); border-color: rgba(122, 59, 46, 0.4); }

/* ---------- Grammar-check findings ---------- */
/* Red wavy underline on the flagged prose; click to open the Accept/Dismiss popover. */
.mirror-mode .mirror-grammar-squiggle {
  text-decoration: underline;
  text-decoration-style: wavy;
  text-decoration-color: #d64545;
  text-decoration-skip-ink: none;
  text-underline-offset: 2px;
  cursor: pointer;
}
.mirror-mode .mirror-grammar-squiggle:hover { background-color: rgba(214, 69, 69, 0.10); }

/* Popover appended to document.body (unscoped, like the comment tooltip). */
.mirror-grammar-tooltip {
  position: fixed; z-index: 9999; background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18); padding: 8px 12px; max-width: 340px;
  font-size: 13px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.mirror-grammar-tooltip .mirror-grammar-reason { color: #555; margin-bottom: 4px; line-height: 1.4; }
.mirror-grammar-tooltip .mirror-grammar-suggestion { color: #1a1a1a; font-weight: 600; margin-bottom: 8px; white-space: pre-wrap; }
.mirror-grammar-tooltip .mirror-grammar-actions { display: flex; gap: 6px; }
.mirror-grammar-tooltip .mirror-grammar-accept,
.mirror-grammar-tooltip .mirror-grammar-dismiss {
  border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 3px;
  padding: 3px 10px; cursor: pointer; font-size: 11px;
}
.mirror-grammar-tooltip .mirror-grammar-accept { background: rgba(40, 140, 70, 0.12); border-color: rgba(40, 140, 70, 0.4); color: #1d6b39; }
.mirror-grammar-tooltip .mirror-grammar-accept:hover { background: rgba(40, 140, 70, 0.20); }
.mirror-grammar-tooltip .mirror-grammar-dismiss { background: rgba(0, 0, 0, 0.04); color: #2a2a2a; }
.mirror-grammar-tooltip .mirror-grammar-dismiss:hover { background: rgba(122, 59, 46, 0.10); border-color: rgba(122, 59, 46, 0.4); }

/* ---------- Suggesting mode: tracked changes as marks-in-model (ADR 0007) ---------- */
/* Pending insertion: IN the model, marked, shown in the author's colour so a
   reader can tell coauthors apart at a glance. The colour comes from the mark's
   validated --sugg-color custom property (schema-spec.js suggInsert). */
.mirror-mode .mirror-sugg-insert {
  color: var(--sugg-color, #7b5cd6);
  text-decoration: underline; text-decoration-color: var(--sugg-color, #7b5cd6);
  text-underline-offset: 2px;
  cursor: pointer;
}
/* Pending deletion (slice 2): struck trunk text, still present until accepted. */
.mirror-mode .mirror-sugg-delete {
  text-decoration: line-through; text-decoration-thickness: 1.5px;
  text-decoration-color: var(--sugg-color, #7b5cd6);
  opacity: 0.72; cursor: pointer;
}
.mirror-proposal-tooltip {
  position: fixed; z-index: 9999; background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18); padding: 8px 12px;
  font-size: 13px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.mirror-proposal-tooltip .mirror-proposal-author { font-size: 11px; color: #888; margin-bottom: 6px; }
.mirror-proposal-tooltip .mirror-proposal-actions { display: flex; gap: 6px; }
.mirror-proposal-tooltip .mirror-proposal-accept,
.mirror-proposal-tooltip .mirror-proposal-reject {
  border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 3px;
  padding: 3px 12px; cursor: pointer; font-size: 11px;
}
.mirror-proposal-tooltip .mirror-proposal-accept { background: rgba(58, 122, 46, 0.12); color: #2e5c1e; border-color: rgba(58, 122, 46, 0.4); }
.mirror-proposal-tooltip .mirror-proposal-accept:hover { background: rgba(58, 122, 46, 0.22); }
.mirror-proposal-tooltip .mirror-proposal-reject { background: rgba(122, 46, 46, 0.10); color: #7a2e2e; border-color: rgba(122, 46, 46, 0.35); }
.mirror-proposal-tooltip .mirror-proposal-reject:hover { background: rgba(122, 46, 46, 0.20); }

/* Step-through review bar: walk suggestions one by one (Word Review-pane style). */
.suggestion-review-bar {
  position: fixed; top: 84px; left: 50%; transform: translateX(-50%);
  z-index: 9998; display: flex; align-items: center; gap: 14px;
  max-width: min(760px, 94vw); padding: 8px 12px;
  background: #fff; border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 8px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.20);
  font-size: 13px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: #1c1c1c;
}
.suggestion-review-bar.hidden { display: none; }
.suggestion-review-bar:focus { outline: none; }
/* Drag-to-move: the whole bar is a grab surface (the action buttons re-assert cursor:pointer
   below), and the grip at the left is the affordance that says so. */
.suggestion-review-bar { cursor: grab; }
.suggestion-review-bar.srb-dragging { cursor: grabbing; user-select: none; }
.srb-grip {
  flex: 0 0 auto; cursor: grab; color: #b8b4ac; font-size: 15px; line-height: 1;
  letter-spacing: -2px; user-select: none; margin-right: -2px;
}
.srb-grip:hover { color: #8a8680; }
.suggestion-review-bar.srb-dragging .srb-grip { cursor: grabbing; }
.srb-count { font-weight: 600; color: #666; white-space: nowrap; }
.srb-body { display: flex; align-items: baseline; gap: 8px; min-width: 0; flex: 1 1 auto; overflow: hidden; }
.srb-author { font-weight: 600; white-space: nowrap; flex: 0 0 auto; }
.srb-diff { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.srb-diff del { color: #7a2e2e; text-decoration: line-through; }
.srb-diff ins { color: #2e5c1e; text-decoration: none; background: rgba(58, 122, 46, 0.12); border-radius: 2px; padding: 0 3px; }
.srb-arrow { color: #999; padding: 0 2px; }
.srb-actions { display: flex; gap: 6px; flex: 0 0 auto; }
.srb-btn {
  border: 1px solid rgba(0, 0, 0, 0.15); background: #f7f6f3; color: #1c1c1c;
  border-radius: 4px; padding: 4px 10px; cursor: pointer; font-size: 12px; line-height: 1.4;
}
.srb-btn:hover:not(:disabled) { background: #efece6; }
.srb-btn:disabled { opacity: 0.4; cursor: default; }
.srb-accept { background: rgba(58, 122, 46, 0.12); color: #2e5c1e; border-color: rgba(58, 122, 46, 0.4); font-weight: 600; }
.srb-accept:hover:not(:disabled) { background: rgba(58, 122, 46, 0.22); }
.srb-reject { background: rgba(122, 46, 46, 0.10); color: #7a2e2e; border-color: rgba(122, 46, 46, 0.35); font-weight: 600; }
.srb-reject:hover:not(:disabled) { background: rgba(122, 46, 46, 0.20); }
/* Grammar review: the finding's reason (italic, muted) beside the original→suggestion diff; a
   "(remove)" suggestion reads as a deletion, not an insertion. */
.srb-grammar-reason { color: #666; font-style: italic; white-space: nowrap; flex: 0 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.srb-diff ins.srb-remove { color: #7a2e2e; background: rgba(122, 46, 46, 0.10); }
/* The grammar "N findings" status doubles as a shortcut into the review bar. */
.compile-status.grammar-clickable { cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
.compile-status.grammar-clickable:hover { filter: brightness(0.9); }

/* Flash the suggestion the review bar just scrolled to. */
.mirror-proposal-flash {
  background: rgba(122, 92, 214, 0.22);
  box-shadow: 0 0 0 2px rgba(122, 92, 214, 0.30); border-radius: 3px;
  transition: background 0.5s ease, box-shadow 0.5s ease;
}

/* ---------- Display-math block (Stage 4: \begin{equation} etc.) ---------- */
.mirror-mode .mirror-mathblock {
  margin: 0.6em 0; padding: 6px 10px; text-align: center; cursor: pointer;
  border-radius: 4px; overflow-x: auto;
}
.mirror-mode .mirror-mathblock:hover { background: rgba(46, 92, 122, 0.06); }
.mirror-mode .mirror-mathblock .katex-display { margin: 0; }
/* Equation numbers for numbered display environments (equation/align/… without `*`),
   in document order. The counter resets at the content root and re-numbers automatically
   as equations move. A multi-row align shows one block number — KaTeX cannot render a
   per-row number (see nodeviews.js MathBlockView). */
.mirror-mode .ProseMirror, .mirror-mode .pgx-content { counter-reset: cw-eqn; }
.mirror-mode .mirror-mathblock.mirror-eq-num { position: relative; counter-increment: cw-eqn; }
.mirror-mode .mirror-mathblock.mirror-eq-num::after {
  content: "(" counter(cw-eqn) ")";
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  color: #333; font-size: 0.92em; pointer-events: none;
}

/* ---------- Editable table cell grid (Stage 4) ---------- */
.mirror-mode .mirror-table-grid {
  border-collapse: collapse; margin: 4px 0 8px; font-size: 0.92em; width: auto;
}
.mirror-mode .mirror-table-grid td {
  padding: 3px 8px; min-width: 28px;
  vertical-align: top; outline: none; font-family: inherit;
}
.mirror-mode .mirror-table-grid td:focus {
  background: #eef4fb; box-shadow: inset 0 0 0 2px #9bb6cc;
}
/* Faithful borders: draw only the rules the LaTeX actually has (booktabs = horizontal
   only; |l|l|+\hline = grid; plain tabular = none) instead of a uniform grid. The legacy
   full grid survives only for a table whose rows the shared parser could not align
   (.cw-grid-fallback), so an unparsed table never renders borderless by accident. */
.mirror-mode .mirror-table-grid.cw-grid-fallback td { border: 1px solid #d3d8de; }
.mirror-mode .mirror-table-grid tr.rule-top > * { border-top: 1.6px solid #333; }
.mirror-mode .mirror-table-grid tr.rule-mid > * { border-top: 1px solid #666; }
.mirror-mode .mirror-table-grid tr.rule-bottom > * { border-bottom: 1.6px solid #333; }
.mirror-mode .mirror-table-grid td.cw-vl,
.mirror-mode .mirror-realtable td.cw-vl, .mirror-mode .mirror-realtable th.cw-vl { border-left: 1px solid #555; }
.mirror-mode .mirror-table-grid td.cw-vr,
.mirror-mode .mirror-realtable td.cw-vr, .mirror-mode .mirror-realtable th.cw-vr { border-right: 1px solid #555; }
.mirror-mode .mirror-realtable tr.rule-bottom > * { border-bottom: 1.6px solid #333; }

/* ---------- Wrapper container (Stage 4: landscape) ---------- */
.mirror-mode .mirror-container {
  position: relative; border: 1px dashed #c7ccd2; border-radius: 5px;
  padding: 10px 12px 8px; margin: 0.7em 0;
}
.mirror-mode .mirror-container::before {
  content: attr(data-env); position: absolute; top: -0.7em; left: 10px;
  font-size: 10px; text-transform: uppercase; letter-spacing: .5px;
  color: #8a93a0; background: #fff; padding: 0 6px;
}

/* Paragraph-alignment containers (center / flushleft / flushright) are plain
   alignment, not a boxed construct: drop the dashed border + env label so they
   read like Word (just aligned text), and apply the matching text-align, which
   the inner paragraphs inherit. Applies equally to the off-screen brain and the
   page-box clones (both live under .mirror-mode). Landscape keeps its box. */
.mirror-mode .mirror-container[data-env="center"],
.mirror-mode .mirror-container[data-env="flushleft"],
.mirror-mode .mirror-container[data-env="flushright"] {
  border: none; padding: 0; margin: 0;
}
.mirror-mode .mirror-container[data-env="center"]::before,
.mirror-mode .mirror-container[data-env="flushleft"]::before,
.mirror-mode .mirror-container[data-env="flushright"]::before { content: none; }
.mirror-mode .mirror-container[data-env="center"] { text-align: center; }
.mirror-mode .mirror-container[data-env="flushright"] { text-align: right; }
.mirror-mode .mirror-container[data-env="flushleft"] { text-align: left; }

/* A block quote is an indented paragraph in Word, not a boxed construct: drop the dashed border and
   the env label, and indent both sides the way LaTeX's `quote` does. The inner paragraphs stay
   ordinary editable paragraphs — the whole point is that a writer can type in them. */
.mirror-mode .mirror-container[data-env="quote"] {
  border: none; padding: 0; margin: 0.6em 0; padding-left: 0.5in; padding-right: 0.5in;
}
.mirror-mode .mirror-container[data-env="quote"]::before { content: none; }
.mirror-mode .mirror-container[data-env="quote"] > p { text-indent: 0; }

/* `quotation` is the same construct as `quote` (an indented block quote); pandoc
   emits either. Style it identically: no box, no env label, indented both sides. */
.mirror-mode .mirror-container[data-env="quotation"] {
  border: none; padding: 0; margin: 0.6em 0; padding-left: 0.5in; padding-right: 0.5in;
}
.mirror-mode .mirror-container[data-env="quotation"]::before { content: none; }
.mirror-mode .mirror-container[data-env="quotation"] > p { text-indent: 0; }

/* Abstract: the PDF centers an "Abstract" heading over a slightly narrower, smaller
   body. Render it that way — no box, centered label, indented body — while the inner
   paragraphs stay ordinary editable content (a writer types their abstract in place). */
.mirror-mode .mirror-container[data-env="abstract"] {
  border: none; padding: 0; margin: 1em 1.6em; font-size: 0.95em;
}
.mirror-mode .mirror-container[data-env="abstract"]::before {
  content: "Abstract"; position: static; display: block; text-align: center;
  font-weight: 700; font-size: 1em; text-transform: none; letter-spacing: 0;
  color: inherit; background: none; padding: 0; margin: 0 0 0.4em;
}
.mirror-mode .mirror-container[data-env="abstract"] > p { text-indent: 0; }

/* Theorem family (amsthm): a bold run-in label over an editable body, with a subtle
   left rule instead of the generic dashed box. Numbering is the LaTeX PDF's job (it
   depends on the doc's \newtheorem config), so the editor shows the label only. */
.mirror-mode .mirror-container[data-env="theorem"],
.mirror-mode .mirror-container[data-env="lemma"],
.mirror-mode .mirror-container[data-env="proof"],
.mirror-mode .mirror-container[data-env="definition"],
.mirror-mode .mirror-container[data-env="corollary"],
.mirror-mode .mirror-container[data-env="proposition"],
.mirror-mode .mirror-container[data-env="remark"],
.mirror-mode .mirror-container[data-env="example"],
.mirror-mode .mirror-container[data-env="claim"] {
  border: none; border-left: 2px solid #d7dbe0; border-radius: 0;
  padding: 0.05em 0 0.05em 12px; margin: 0.7em 0;
}
.mirror-mode .mirror-container[data-env="theorem"]::before,
.mirror-mode .mirror-container[data-env="lemma"]::before,
.mirror-mode .mirror-container[data-env="proof"]::before,
.mirror-mode .mirror-container[data-env="definition"]::before,
.mirror-mode .mirror-container[data-env="corollary"]::before,
.mirror-mode .mirror-container[data-env="proposition"]::before,
.mirror-mode .mirror-container[data-env="remark"]::before,
.mirror-mode .mirror-container[data-env="example"]::before,
.mirror-mode .mirror-container[data-env="claim"]::before {
  position: static; display: block; margin: 0 0 0.15em;
  font-weight: 700; font-size: 1em; text-transform: none; letter-spacing: 0;
  color: inherit; background: none; padding: 0;
}
/* The body under the label is the lead content, so drop the default first-line
   indent (matching abstract/quote) — the label already sets the block off. */
.mirror-mode .mirror-container[data-env="theorem"] > p,
.mirror-mode .mirror-container[data-env="lemma"] > p,
.mirror-mode .mirror-container[data-env="proof"] > p,
.mirror-mode .mirror-container[data-env="definition"] > p,
.mirror-mode .mirror-container[data-env="corollary"] > p,
.mirror-mode .mirror-container[data-env="proposition"] > p,
.mirror-mode .mirror-container[data-env="remark"] > p,
.mirror-mode .mirror-container[data-env="example"] > p,
.mirror-mode .mirror-container[data-env="claim"] > p { text-indent: 0; }
.mirror-mode .mirror-container[data-env="theorem"]::before { content: "Theorem"; }
.mirror-mode .mirror-container[data-env="lemma"]::before { content: "Lemma"; }
.mirror-mode .mirror-container[data-env="definition"]::before { content: "Definition"; }
.mirror-mode .mirror-container[data-env="corollary"]::before { content: "Corollary"; }
.mirror-mode .mirror-container[data-env="proposition"]::before { content: "Proposition"; }
.mirror-mode .mirror-container[data-env="remark"]::before { content: "Remark"; }
.mirror-mode .mirror-container[data-env="example"]::before { content: "Example"; }
.mirror-mode .mirror-container[data-env="claim"]::before { content: "Claim"; }
/* amsthm renders a proof's label in italic and appends a QED box; keep it distinct. */
.mirror-mode .mirror-container[data-env="proof"]::before { content: "Proof"; font-style: italic; font-weight: 400; }

/* Verbatim / lstlisting rendered as a real code block (RawLatexView cosmetic): a
   raw block is drawn as monospace, whitespace-preserved code instead of a chip. */
.mirror-mode .mirror-codeblock-wrap { position: relative; margin: 0.7em 0; }
.mirror-mode .mirror-codeblock {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em; line-height: 1.45; white-space: pre; overflow-x: auto;
  background: #f6f8fa; border: 1px solid #e3e7ec; border-radius: 6px;
  padding: 10px 12px; margin: 0; color: #24292f; tab-size: 2;
}

/* Description list rendered as a definition list (RawLatexView cosmetic). */
.mirror-mode .mirror-desclist-wrap { position: relative; margin: 0.7em 0; }
.mirror-mode .mirror-desclist { margin: 0; }
.mirror-mode .mirror-desclist dt { font-weight: 700; margin: 0.4em 0 0; }
.mirror-mode .mirror-desclist dd { margin: 0 0 0 1.6em; }

/* The Edit button on a cosmetic raw render: top-right, revealed on hover. */
.mirror-mode .mirror-codeblock-wrap .mirror-edit-btn,
.mirror-mode .mirror-desclist-wrap .mirror-edit-btn {
  position: absolute; top: 4px; right: 4px; opacity: 0; transition: opacity .12s;
}
.mirror-mode .mirror-codeblock-wrap:hover .mirror-edit-btn,
.mirror-mode .mirror-desclist-wrap:hover .mirror-edit-btn { opacity: 1; }

/* \tableofcontents / \listof… placeholder (RawInlineView cosmetic): the real list
   is produced by the LaTeX PDF at compile, so the editor shows a labeled marker. */
.mirror-mode .mirror-toc-placeholder {
  display: inline-block; font-size: 0.85em; color: #6b7480;
  background: #f2f4f7; border: 1px dashed #cfd5dc; border-radius: 5px; padding: 1px 8px;
}

/* ---------- Compile-driven page-break markers ---------- */
/* Block form: a divider between two blocks (break at a paragraph boundary). */
.mirror-mode .mirror-page-break {
  display: block; position: relative; height: 0; margin: 1.1em 0;
  border-top: 1px dashed #b9c2cc; user-select: none; pointer-events: none;
}
/* Inline form: a break that falls MID-paragraph. inline-block + full width forces
   the line to end here and the divider to span the page, so the paragraph splits
   exactly where the PDF page does. */
.mirror-mode .mirror-page-break.is-inline {
  display: inline-block; width: 100%; vertical-align: top;
  margin: 0.5em 0; height: 0.6em;
}
.mirror-mode .mirror-page-break-folio {
  position: absolute; right: 0; top: -0.75em; background: #fff;
  padding: 0 8px; font-size: 10px; letter-spacing: .4px; text-transform: uppercase;
  color: #97a1ad; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ============================================================
   Word-style pagination (Phase 1) — overlay sheets.
   Scoped under `.mirror-mode.paginated` (added by app.js when the
   paginatedEditor flag is on) and `.paginated-host` (added by the
   paginator to the scroll container). Inert otherwise — flag-off and
   non-paginated mirror mode are byte-identical to before.
   ============================================================ */
.mirror-mode.paginated .mirror-wysiwyg.paginated-host { background: #525659; position: relative; }

/* ---------- Page rulers (ADR 0008, Rule 7: the geometry, made visible) ---------- */
.mirror-mode.paginated .paginated-host.has-rulers { padding-left: 30px; }
.pg-ruler { box-sizing: border-box; font: 9px/1 -apple-system, BlinkMacSystemFont, sans-serif; color: #9aa0a6; pointer-events: none; }
.pg-ruler-h { position: sticky; top: 0; left: 0; z-index: 6; height: 24px; width: 100%; margin-left: -30px; background: #edeff1; border-bottom: 1px solid #d4d7dc; }
.pg-ruler-v { position: absolute; left: 0; width: 28px; z-index: 5; background: #edeff1; border-right: 1px solid #d4d7dc; }
.pg-ruler-corner { position: sticky; top: 0; left: 0; z-index: 7; width: 28px; height: 24px; margin-bottom: -24px; background: #e3e5e8; border-right: 1px solid #d4d7dc; border-bottom: 1px solid #d4d7dc; }
.pg-ruler-track { position: absolute; top: 0; height: 100%; }
.pg-ruler-h .pg-ruler-content { position: absolute; bottom: 0; height: 7px; }
.pg-ruler-h .pg-ruler-margin { position: absolute; top: 0; bottom: 0; background: rgba(110,120,135,0.20); }
.pg-ruler-h .pg-ruler-num { position: absolute; bottom: 8px; transform: translateX(-50%); }
.pg-ruler-indent { position: absolute; bottom: 0; margin-left: -4px; width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-bottom: 7px solid #5b6470; }
.pg-ruler-vpage { position: absolute; left: 0; width: 100%; }
.pg-ruler-v .pg-ruler-content { position: absolute; left: 0; width: 7px; }
.pg-ruler-v .pg-ruler-margin { position: absolute; left: 0; width: 100%; background: rgba(110,120,135,0.20); }
.pg-ruler-v .pg-ruler-num { position: absolute; left: 9px; transform: translateY(-50%); }
/* Drag handles (ADR 0008, Rule 7: the ruler writes back to the geometry). */
.pg-ruler-handle { position: absolute; pointer-events: auto; z-index: 2; }
.pg-ruler-h .pg-ruler-handle.mh { top: 0; height: 100%; width: 8px; margin-left: -4px; cursor: ew-resize; }
.pg-ruler-v .pg-ruler-handle.mh { left: 0; width: 100%; height: 8px; margin-top: -4px; cursor: ns-resize; }
.pg-ruler-handle.mh:hover { background: rgba(74,144,217,0.35); }
.pg-ruler-indent { cursor: ew-resize; pointer-events: auto; z-index: 3; }
.pg-ruler-guide { position: absolute; z-index: 8; pointer-events: none; background: #4a90d9; display: none; }
.pg-ruler-guide.visible { display: block; }
.pg-ruler-guide.x { width: 1px; }
.pg-ruler-guide.y { height: 1px; }
.pg-ruler-tip { position: absolute; z-index: 9; display: none; background: #2b2f36; color: #fff; font: 10px/1.4 -apple-system, sans-serif; padding: 2px 6px; border-radius: 3px; pointer-events: none; white-space: nowrap; }
.pg-ruler-tip.visible { display: block; }

.mirror-mode.paginated .pg-stack { position: relative; margin: 0 auto; zoom: var(--editor-zoom, 1); }
.mirror-mode.paginated .pg-sheets { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.mirror-mode.paginated .pg-sheet {
  position: absolute; left: 0;
  width: var(--pg-page-w); height: var(--pg-page-h);
  background: #fff; box-shadow: 0 1px 8px rgba(0,0,0,.5);
}
.mirror-mode.paginated .pg-folio {
  position: absolute; left: 0; right: 0; bottom: calc(var(--pg-margin) * 0.40);
  text-align: center; color: #9aa0a6; font-size: 10pt;
  font-family: 'Times New Roman', Georgia, serif;
}
/* Page-number position (Insert > Page number). Edge picks top vs bottom; side
   picks the horizontal alignment within the margin. */
.mirror-mode.paginated .pg-folio--top-left,
.mirror-mode.paginated .pg-folio--top-center,
.mirror-mode.paginated .pg-folio--top-right { top: calc(var(--pg-margin) * 0.40); bottom: auto; }
.mirror-mode.paginated .pg-folio--bottom-left,
.mirror-mode.paginated .pg-folio--bottom-center,
.mirror-mode.paginated .pg-folio--bottom-right { top: auto; bottom: calc(var(--pg-margin) * 0.40); }
.mirror-mode.paginated .pg-folio--top-left,
.mirror-mode.paginated .pg-folio--bottom-left { text-align: left; padding: 0 var(--pg-margin); }
.mirror-mode.paginated .pg-folio--top-right,
.mirror-mode.paginated .pg-folio--bottom-right { text-align: right; padding: 0 var(--pg-margin); }
.mirror-mode.paginated .pg-gap { display: block; width: 100%; pointer-events: none; user-select: none; }

/* The editable goes transparent + full page-width so the sheets show through;
   the single-sheet `.ProseMirror` styling above is neutralised in this mode. */
.mirror-mode.paginated .paginated-host .ProseMirror {
  position: relative; z-index: 1;
  max-width: none; width: var(--pg-page-w); margin: 0;
  padding: var(--pg-margin) var(--pg-margin) 0 var(--pg-margin);
  background: transparent; box-shadow: none; min-height: 0;
}

/* ============================================================
   Word-like rendering of common non-content LaTeX (nodeviews.js
   RawInlineView): \maketitle title block, \bibliography placeholder,
   and hidden invisible directives. Rendering-only; the source is
   unchanged. Scoped to mirror mode.
   ============================================================ */
.mirror-mode .mirror-title-block { display: block; text-align: center; margin: 0.1in 0 0.4in; }
.mirror-mode .mirror-title-line { display: block; font-size: 18pt; font-weight: 700; line-height: 1.25; }
.mirror-mode .mirror-title-author { display: block; font-size: 12pt; margin-top: 10px; }
.mirror-mode .mirror-title-date { display: block; font-size: 12pt; margin-top: 6px; color: #333; }
.mirror-mode .mirror-references-ph {
  display: block; margin-top: 1em; padding-top: .5em;
  border-top: 1px solid #d9dde2; color: #8a9099; font-style: italic;
}
.mirror-mode .mirror-rawinline-hidden { display: none; }

/* Raw blocks that are really an image (\includegraphics wrapped in center/etc.)
   render as the image (nodeviews.js RawLatexView.buildImage); allow a taller cap
   than inline figures so real page figures show at a usable size. */
.mirror-mode .mirror-image-block { margin: 1em 0; }
.mirror-mode .mirror-image-block img { max-height: 5in; }

/* Mid-paragraph split gap (Phase 2): a full-width inline-block ends the current
   line and lands the paragraph's continuation on the next sheet. */
.mirror-mode.paginated .pg-gap.is-inline { display: inline-block; vertical-align: top; }

/* Phase 3 — rendered reference list at the \bibliography{} position
   (nodeviews.js refs branch + render-bibliography.js). APA hanging indent. */
/* The reference list is formattable INDEPENDENTLY of the body via the "Format
   references" affordance (mirror-editor-pane.js setBibFormat → CW-BIBFMT preamble
   block → these --mirror-bib-* vars, set in applyDocStyleVars). Each var falls
   back to the document default, so an unformatted list looks exactly as before. */
.mirror-mode .mirror-bibliography { display: block; margin: 1em 0; position: relative; text-align: var(--mirror-bib-align, left); font-family: var(--mirror-bib-font, inherit); }
.mirror-mode .mirror-bib-entry {
  padding-left: var(--mirror-bib-hang, 0.5in);
  text-indent: calc(0px - var(--mirror-bib-hang, 0.5in));
  margin: 0 0 var(--mirror-bib-gap, 0.5em);
  font-size: var(--mirror-bib-fontsize, inherit);
  line-height: var(--mirror-bib-linespacing, var(--mirror-linespacing, 1.2));
  font-weight: var(--mirror-bib-weight, inherit);
  font-style: var(--mirror-bib-style, inherit);
  text-decoration: var(--mirror-bib-decoration, none);
}
/* Numeric reference list: "[n]" hangs in the left gutter, body indented. */
.mirror-mode .mirror-bibliography--numbered .mirror-bib-entry { padding-left: 2.4em; text-indent: 0; }
.mirror-mode .mirror-bib-num { display: inline-block; width: 2.4em; margin-left: -2.4em; }
.mirror-mode .mirror-bib-entry em { font-style: var(--mirror-bib-em-style, italic); }
.mirror-mode .mirror-bib-empty { color: #8a9099; font-style: italic; }
/* "⚙ Format references" — appears on hover at the top-right of the list. */
.mirror-mode .mirror-bib-format-btn {
  position: absolute; top: -1.7em; right: 0; z-index: 4;
  font: 500 11px/1 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  padding: 4px 9px; border-radius: 6px; white-space: nowrap;
  border: 1px solid rgba(74, 123, 214, 0.40); background: #fff; color: #2c5cc4;
  cursor: pointer; opacity: 0; transition: opacity .12s;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.10); user-select: none;
}
.mirror-mode .mirror-bibliography:hover .mirror-bib-format-btn,
.mirror-mode .mirror-bib-format-btn:hover,
.mirror-mode .mirror-bib-format-btn:focus-visible { opacity: 1; }
@media print { .mirror-bib-format-btn { display: none !important; } }
#pg-print-root .mirror-bib-format-btn { display: none !important; }
/* Reference-list formatting popover (app.js showBibFormatPopover). */
.bibfmt-popover {
  position: absolute; z-index: 10000; width: 268px;
  background: #fff; border: 1px solid #dfe3ea; border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.16); padding: 12px 14px;
  font: 13px/1.3 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1c2330;
}
.bibfmt-title { font-weight: 600; font-size: 13px; margin: 0 0 10px; }
/* Label stacked above a full-width segmented control, so a 4-option row never
   clips regardless of the label/option text width. */
.bibfmt-row { display: flex; flex-direction: column; align-items: stretch; gap: 5px; margin: 0 0 10px; }
.bibfmt-label { color: #4a5261; font-size: 11px; font-weight: 500; }
.bibfmt-seg { display: flex; border: 1px solid #d3d8e0; border-radius: 7px; overflow: hidden; }
.bibfmt-opt {
  flex: 1 1 0; text-align: center; white-space: nowrap;
  appearance: none; border: 0; border-left: 1px solid #e3e7ee; background: #fff; color: #2c3340;
  padding: 5px 6px; font: inherit; cursor: pointer;
}
.bibfmt-opt:first-child { border-left: 0; }
.bibfmt-opt:hover { background: #f1f4f9; }
.bibfmt-opt.is-active { background: #2c5cc4; color: #fff; }
/* Each B/I/U/S toggle previews the style it applies. */
.bibfmt-style { font-size: 13px; }
.bibfmt-style-bold { font-weight: 700; }
.bibfmt-style-italic { font-style: italic; }
.bibfmt-style-underline { text-decoration: underline; }
.bibfmt-style-strike { text-decoration: line-through; }
.bibfmt-select {
  width: 100%; padding: 5px 8px; font: inherit; color: #2c3340; cursor: pointer;
  border: 1px solid #d3d8e0; border-radius: 7px; background: #fff;
}
.bibfmt-note { margin-top: 8px; color: #8a9099; font-size: 11px; line-height: 1.35; }
/* In-editor reference edit: each field is hoverable; clicking opens an inline
   editor overlay seeded with the source BibTeX value (mirror-editor-pane.js). */
.mirror-mode .mirror-bib-field { cursor: text; border-radius: 2px; transition: background-color .08s; }
.mirror-mode .mirror-bib-field:hover { background: rgba(74, 123, 214, 0.14); box-shadow: 0 0 0 1px rgba(74, 123, 214, 0.30); }
.mirror-bib-edit {
  position: fixed; z-index: 10001; box-sizing: border-box;
  background: #fff; color: #111; max-width: 60ch; white-space: pre-wrap;
  border: 1px solid #4a7bd6; border-radius: 3px; padding: 1px 4px;
  box-shadow: 0 3px 14px rgba(0, 0, 0, 0.20); outline: none;
}

/* Hide LaTeX comments + scaffolding-only paragraphs in the editor
   (latex-cosmetics.js). Rendering-only; the source is unchanged. */
.mirror-mode .pg-cosmetic-hidden { display: none; }

/* Real tables (render-table.js) — Word-like booktabs look, not a chip. */
.mirror-mode .mirror-table { position: relative; margin: 1em 0; text-align: center; border: 0; background: none; padding: 0; border-radius: 0; }
.mirror-mode .mirror-realtable, .mirror-mode .mirror-table-grid { border-collapse: collapse; margin: 0 auto; font-size: 10.5pt; line-height: 1.35; }
/* Real tables scroll horizontally rather than crush. table-layout:fixed forced a
   many-column table (e.g. a 22-column correlation matrix) into the page width and
   overflow-wrap:anywhere then broke every cell character-by-character — unreadable.
   Auto layout sizes columns to their content; min-width:100% still fills the page
   for a narrow proportional table; the .mirror-table-scroll wrapper lets a wide
   (or landscape) table exceed the sheet and scroll instead of collapsing. */
.mirror-mode .mirror-table-scroll { overflow-x: auto; max-width: 100%; }
.mirror-mode .mirror-realtable--full { min-width: 100%; margin: 0; }
.mirror-mode .mirror-realtable th, .mirror-mode .mirror-realtable td { padding: 4px 12px; vertical-align: top; max-width: 26em; overflow-wrap: break-word; }
.mirror-mode .mirror-realtable th { font-weight: 700; }
.mirror-mode .mirror-realtable tr.rule-top > * { border-top: 1.6px solid #333; }
.mirror-mode .mirror-realtable thead { border-bottom: 1px solid #555; }
.mirror-mode .mirror-realtable tr.rule-mid > * { border-top: 1px solid #888; }
.mirror-mode .mirror-realtable tbody tr:last-child > * { border-bottom: 1.6px solid #333; }
.mirror-mode .mirror-table-caption { font-size: 10.5pt; color: #333; margin-bottom: 6px; font-style: italic; }
.mirror-mode .mirror-table-edit { position: absolute; top: 0; right: 0; opacity: 0; transition: opacity .12s; font-size: 10px; }
.mirror-mode .mirror-table:hover .mirror-table-edit { opacity: .85; }

/* Page-break spacer inside a splittable table/list (paginate.js applyInnerGaps). */
.mirror-mode .pg-inner-gap, .mirror-mode .pg-inner-gap td { border: 0 !important; padding: 0 !important; background: none !important; }

/* Repeated table header on continuation pages (paginate.js). */
.mirror-mode .pg-cloned-header > * { font-weight: 700; border-top: 1.6px solid #333; border-bottom: 1px solid #555; padding: 4px 12px; vertical-align: top; }

/* ============================================================
   Print / Export PDF — a faithful render of the editor (print.js).
   The browser paginates the cloned content at @page geometry.
   ============================================================ */
/* PrintView tab: a read-only, print-faithful preview of the editor's pages
   (a snapshot clone of the live paginated render). Same .pg-sheet CSS applies. */
.printview-preview { flex: 1; min-height: 0; overflow: auto; background: #525659; }
.printview-preview .printview-doc.mirror-mode { height: auto; overflow: visible; display: block; }
.printview-preview .printview-doc .paginated-host { background: #525659; padding: 16px 0; }
.printview-preview .printview-doc .ProseMirror { caret-color: transparent; }
.printview-empty { color: #cfd2d6; padding: 24px; font: 13px -apple-system, sans-serif; }

#pg-print-root { display: none; }
@media print {
  html, body { background: #fff !important; margin: 0 !important; }
  body > *:not(#pg-print-root) { display: none !important; }
  /* The print root carries `.mirror-mode` for its descendant typography rules,
     which also brings `height:100%; overflow:hidden; display:flex` — that caps
     the render at one viewport and clips the rest. Force a natural flow box so
     the browser's paged-media engine paginates the whole document. */
  #pg-print-root { display: block !important; height: auto !important; overflow: visible !important; }
  #pg-print-root .ProseMirror { outline: none; max-width: none; width: auto; margin: 0; padding: 0; background: #fff;
    font-family: var(--mirror-fontfamily, 'Times New Roman', Georgia, serif); font-size: 12pt; line-height: var(--mirror-linespacing, 1.2); color: #000;
    text-align: var(--mirror-textalign, justify); }
  #pg-print-root p { margin: 0; text-indent: var(--mirror-parindent, 0.5in); orphans: 2; widows: 2; }
  #pg-print-root h1 + p, #pg-print-root h2 + p, #pg-print-root h3 + p, #pg-print-root h4 + p { text-indent: 0; }
  #pg-print-root p.mirror-noindent { text-indent: 0; }
  #pg-print-root h1, #pg-print-root h2, #pg-print-root h3, #pg-print-root h4 {
    font-family: var(--mirror-fontfamily, 'Times New Roman', Georgia, serif); font-weight: 700; break-after: avoid; margin: .8em 0 .4em; }
  #pg-print-root h1 { font-size: 17pt; } #pg-print-root h2 { font-size: 15pt; } #pg-print-root h3 { font-size: 13pt; }
  #pg-print-root .pg-cosmetic-hidden { display: none !important; }
  #pg-print-root .mirror-title-block { display:block; text-align:center; margin:.1in 0 .4in; }
  #pg-print-root .mirror-title-line { display:block; font-size:18pt; font-weight:700; }
  #pg-print-root .mirror-title-author, #pg-print-root .mirror-title-date { display:block; font-size:12pt; }
  #pg-print-root figure, #pg-print-root .mirror-figure, #pg-print-root .mirror-image-block { break-inside: avoid; text-align: center; margin: 1em 0; }
  #pg-print-root img { max-width: 100%; }
  #pg-print-root table { border-collapse: collapse; margin: 0 auto; font-size: 10.5pt; }
  /* Match the editor: auto layout (no fixed/crush). A PDF can't scroll, so print.js
     scales a table wider than the page to fit (transform); narrow tables still fill. */
  #pg-print-root .mirror-realtable--full { min-width: 100%; margin: 0; }
  #pg-print-root .mirror-table-scroll { overflow: visible; }
  #pg-print-root table thead { display: table-header-group; }   /* repeat header on each printed page */
  #pg-print-root tr { break-inside: avoid; }
  #pg-print-root th, #pg-print-root td { padding: 4px 12px; vertical-align: top; }
  #pg-print-root .mirror-realtable th { font-weight: 700; }
  #pg-print-root .mirror-realtable tr.rule-top > * { border-top: 1.5px solid #000; }
  #pg-print-root .mirror-realtable thead { border-bottom: 1px solid #000; }
  #pg-print-root .mirror-realtable tbody tr:last-child > * { border-bottom: 1.5px solid #000; }
  #pg-print-root .mirror-bibliography { margin-top: 1em; }
  #pg-print-root .mirror-bib-entry { padding-left: .5in; text-indent: -.5in; margin: 0 0 .4em; }
  #pg-print-root .mirror-bibliography--numbered .mirror-bib-entry { padding-left: 2.4em; text-indent: 0; }
  #pg-print-root .mirror-bib-num { display: inline-block; width: 2.4em; margin-left: -2.4em; }
  /* citations print as plain parenthesised text, not the editor chip */
  #pg-print-root .mirror-cite { background: none; border: 0; padding: 0; color: #000; font-family: inherit; font-size: inherit; white-space: normal; }
  #pg-print-root .mirror-cite::before { content: "("; opacity: 1; margin: 0; }
  #pg-print-root .mirror-cite::after { content: ")"; }
  #pg-print-root .mirror-cite.numeric::before { content: "["; }
  #pg-print-root .mirror-cite.numeric::after { content: "]"; }
  #pg-print-root .mirror-edit-btn, #pg-print-root .mirror-table-edit { display: none !important; }
}

/* Focused editor for one block's LaTeX (table / figure / raw / caption), opened
   from the block's ✎ LaTeX button. Above the app's modals (z max 10001). Buttons
   re-assert colour + border on hover so the global `button:hover` accent cannot
   leak in (see docs/lessons.md, the apply-button incident). */
.mirror-textmodal-overlay { position: fixed; inset: 0; z-index: 10002; display: flex; align-items: center; justify-content: center; background: rgba(20,24,28,0.42); }
.mirror-textmodal { width: min(760px, 92vw); max-height: 84vh; display: flex; flex-direction: column; background: #fff; border-radius: 10px; box-shadow: 0 18px 50px rgba(0,0,0,0.3); overflow: hidden; }
.mirror-textmodal-head { padding: 14px 18px; font: 600 14px/1.3 system-ui, sans-serif; color: #1f2937; border-bottom: 1px solid #e5e7eb; }
/* Safety note above the raw-LaTeX editor: warn that the coloured commands are structural. */
.mirror-textmodal-note { padding: 10px 18px; font: 12px/1.5 system-ui, sans-serif; color: #7a5300; background: #fff7e6; border-bottom: 1px solid #f0e0b8; }
.mirror-textmodal-note b { color: #6a4800; }
.mirror-textmodal-note code { font-family: 'Menlo','Courier New',monospace; font-size: 11px; background: rgba(0,0,0,0.06); padding: 0 3px; border-radius: 3px; }
/* Host for the reused CodeMirror LaTeX editor (syntax highlighting). CM fills it (height:100%). */
.mirror-textmodal-cm { height: 50vh; min-height: 200px; overflow: hidden; }
.mirror-textmodal-field { flex: 1; min-height: 88px; margin: 0; padding: 14px 18px; border: 0; outline: none; resize: none; font: 13px/1.55 'Menlo','Courier New',monospace; color: #111827; background: #fff; overflow: auto; }
.mirror-textmodal:not(.mirror-textmodal-oneline) .mirror-textmodal-field { height: 52vh; white-space: pre; }
.mirror-textmodal-oneline .mirror-textmodal-field { min-height: 0; }
.mirror-textmodal-foot { display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-top: 1px solid #e5e7eb; background: #f8fafc; }
.mirror-textmodal-hint { margin-right: auto; font: 11px system-ui, sans-serif; color: #8a9099; }
.mirror-textmodal-btn { font: 500 13px system-ui, sans-serif; padding: 6px 16px; border-radius: 6px; border: 1px solid #cfd4da; background: #fff; color: #374151; cursor: pointer; }
.mirror-textmodal-btn:hover { background: #f1f3f5; border-color: #cfd4da; color: #374151; }
.mirror-textmodal-save { background: #2e5c7a; border-color: #2e5c7a; color: #fff; }
.mirror-textmodal-save:hover { background: #24506b; border-color: #24506b; color: #fff; }

/* Remote collaborator cursors (y-prosemirror). The plugin's defaultCursorBuilder
   emits <span class="ProseMirror-yjs-cursor"><div>Name</div></span> and sets the
   awareness color inline (border-color + the label's background-color); it relies
   on the APP to shape the caret and float the name label. Without these rules the
   label is an unstyled full-width block, so a collaborator's cursor renders as a
   solid full-width bar across the line (the label's inline background painting the
   whole line). These rules give the caret a thin colored rule and turn the label
   into a small tag above it. Applies in both the brain view and the page-box
   projection (unscoped by design). See docs/lessons.md (2026-07-15). */
.ProseMirror-yjs-cursor {
  position: relative; margin-left: -1px; margin-right: -1px;
  border-left: 1px solid; border-right: 1px solid;
  word-break: normal; pointer-events: none;
}
.ProseMirror-yjs-cursor > div {
  position: absolute; top: -1.2em; left: -1px; z-index: 20;
  font: 600 11px/normal -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-style: normal; user-select: none; color: #fff; white-space: nowrap;
  padding: 1px 5px; border-radius: 3px 3px 3px 0;
}