/* ─────────────────────────────────────────────
   Default Settings — Book Web Reader
   Print-style paginated layout
   ───────────────────────────────────────────── */

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

/* ── Theme variables ── */
:root {
  --bg-app: #1a0e06;
  --bg-page: #FAF8F1;
  --text-body: #252015;
  --text-heading: #15100a;
  --text-muted: #8a7455;
  --text-quiet: #5a4830;
  --accent: #c8a96e;
  --accent-bright: #f0d090;
  --accent-line: #c9a84c;
  --validated: #4f8a3a;
  --validated-bg: rgba(79,138,58,0.08);
  --validated-bright: #6aa84f;
  --shadow-deep: rgba(0,0,0,0.85);
  --shadow-soft: rgba(0,0,0,0.07);
  --rule: rgba(0,0,0,0.10);
  --rule-strong: rgba(0,0,0,0.30);
  --sidebar-bg-1: #251508;
  --sidebar-bg-2: #160c04;
  --sidebar-text: #c4a060;
  --sidebar-text-bright: #f5dc98;
  --sidebar-text-quiet: #6a5535;
  --code-bg: rgba(0,0,0,0.04);

  /* Page geometry — canonical (used by measurer; same logical size across devices) */
  --page-w: 460px;
  --page-h: 700px;
  --page-pad-x: 44px;
  --page-pad-y-top: 28px;
  --page-pad-y-bot: 20px;
  --defs-h: 96px;
  --header-h: 32px;
  --footer-h: 28px;
}

body.light {
  --bg-app: #d9cdb5;
  --bg-page: #FBF7EC;
  --text-body: #2a2418;
  --text-heading: #15100a;
  --text-muted: #7a6a48;
  --text-quiet: #4a3d28;
  --accent: #8c6a30;
  --accent-bright: #6f521f;
  --shadow-deep: rgba(60,40,15,0.30);
  --shadow-soft: rgba(0,0,0,0.06);
  --rule: rgba(0,0,0,0.10);
  --rule-strong: rgba(0,0,0,0.42);
  --sidebar-bg-1: #2a1d0a;
  --sidebar-bg-2: #1a1206;
  --code-bg: rgba(0,0,0,0.05);
}

body {
  background: var(--bg-app);
  font-family: 'Spectral', Georgia, 'Times New Roman', serif;
  height: 100vh; height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.3s ease;
}

/* ── Top bar ── */
.top-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  padding-top: max(8px, env(safe-area-inset-top));
  background: rgba(0,0,0,0.55);
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}
body.light .top-bar { background: rgba(110,75,30,0.55); color: #fbeac4; }

.icon-btn {
  background: none;
  border: none;
  color: inherit;
  font-size: 18px;
  cursor: pointer;
  padding: 3px 8px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: opacity 0.15s;
}
.icon-btn:hover { opacity: 0.75; }
.top-bar-title { font-family: 'Spectral', serif; font-style: italic; font-size: 13px; }
.spread-label { margin-left: auto; opacity: 0.7; font-size: 10px; letter-spacing: 0.1em; }

.review-icon, .validated-icon { font-size: 14px; line-height: 1; }
.review-count, .validated-count {
  display: inline-block; min-width: 16px; padding: 1px 5px;
  background: var(--accent); color: var(--bg-app);
  border-radius: 8px; font-size: 10px; font-weight: 600;
  text-align: center; line-height: 1.3;
}
.validated-count { background: var(--validated); color: #fff; }
.validated-btn { margin-left: 8px; }
.spread-label + .validated-btn { margin-left: 12px; }

/* ── Stage ── */
.stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 8px;
  padding-bottom: max(14px, env(safe-area-inset-bottom));
  min-height: 0;
}

/* ── Nav buttons (desktop chevrons) ── */
.nav-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 56px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.55;
  transition: opacity 0.15s, transform 0.15s;
  padding: 0 4px;
  flex-shrink: 0;
}
.nav-btn:hover:not(:disabled) { opacity: 1; transform: scale(1.08); }
.nav-btn:disabled { opacity: 0.12; cursor: default; }

/* ── Book ── */
.book {
  display: flex;
  align-items: stretch;
  border-radius: 2px;
  box-shadow:
    0 24px 80px var(--shadow-deep),
    0 0 0 1px rgba(0,0,0,0.4);
  max-height: 100%;
  position: relative;
}

/* ── Pages ── */
.page {
  width: var(--page-w);
  height: var(--page-h);
  background: var(--bg-page);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: background 0.3s ease;
}
.page-left { border-radius: 2px 0 0 2px; }
.page-right { border-radius: 0 2px 2px 0; }

/* ── Spine — thin black separation ── */
.spine {
  width: 1px;
  flex-shrink: 0;
  background: var(--rule-strong);
}

/* ── Page header ── */
.page-header {
  height: var(--header-h);
  padding: 10px 32px 4px;
  border-bottom: 0.5px solid var(--rule);
  flex-shrink: 0;
  display: flex; align-items: center;
}
.page-left .page-header { justify-content: flex-start; }
.page-right .page-header { justify-content: flex-end; }

.running-head {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Page body (fixed, no scroll on desktop) ── */
.page-body {
  flex: 1 1 auto;
  padding: var(--page-pad-y-top) var(--page-pad-x) 6px;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-body);
  text-align: justify;
  hyphens: auto;
  min-height: 0;
  user-select: text;
  position: relative;
}

/* ── Definitions footer ── */
.page-definitions {
  flex-shrink: 0;
  min-height: 0;
  max-height: var(--defs-h);
  padding: 6px var(--page-pad-x) 4px;
  border-top: 0.5px solid var(--rule);
  font-size: 10.5px;
  line-height: 1.4;
  color: var(--text-quiet);
  overflow: hidden;
}
.page-definitions:empty { display: none; }
.page-definitions:empty + .page-footer { border-top: 0.5px solid var(--rule); }
.page-def-item { margin-bottom: 3px; }
.page-def-item .def-word {
  font-weight: 600;
  color: var(--text-heading);
  font-style: italic;
  margin-right: 6px;
}

dfn.defined {
  font-style: normal;
  border-bottom: 1px dotted var(--text-muted);
  cursor: help;
}
dfn.defined::after { content: '°'; font-size: 0.75em; vertical-align: super; color: var(--text-muted); margin-left: 1px; }

/* ── Chapter opening (special page type) ── */
.chapter-opening {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: center;
  padding: 24px 16px 12px;
}
.opening-top {
  display: flex; flex-direction: column; align-items: center;
  margin-top: 38px;
}
.opening-mid {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.opening-bottom {
  display: flex; flex-direction: column; gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 10.5px;
  color: var(--text-muted);
  text-align: left;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
}
.opening-stats {
  border-top: 0.5px solid var(--rule);
  padding-top: 14px;
  display: grid;
  grid-template-columns: auto 1fr;
  row-gap: 5px;
  column-gap: 12px;
}
.opening-stats .label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 9.5px;
  color: var(--text-muted);
}
.opening-stats .value { font-size: 11px; color: var(--text-body); font-family: 'Spectral', serif; }
.opening-stats .value.good { color: var(--validated); }
.opening-stats .value.warn { color: #c47a26; }
.opening-stats .value.flag { color: #c5402d; }
.opening-progress {
  height: 4px; width: 100%;
  background: rgba(0,0,0,0.08);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 4px;
}
.opening-progress > span {
  display: block; height: 100%;
  background: var(--validated);
  transition: width 0.4s ease;
}
.opening-bar {
  display: flex; gap: 2px; margin-top: 4px;
}
.opening-bar > span {
  flex: 1; height: 6px; background: rgba(0,0,0,0.08); border-radius: 1px;
}
.opening-bar > span.on { background: var(--accent); }
.opening-bar > span.this { background: var(--validated-bright); box-shadow: 0 0 0 1.5px var(--validated); }

.chapter-opening .part-label {
  font-family: 'Inter', sans-serif;
  font-size: 9.5px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 26px;
}
.chapter-opening .chapter-num {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--text-muted);
}
.chapter-opening .chapter-num::before,
.chapter-opening .chapter-num::after { content: '—'; margin: 0 8px; opacity: 0.5; }
.chapter-opening .chapter-title {
  font-family: 'Spectral', serif;
  font-size: 26px;
  font-weight: 600;
  font-style: italic;
  color: var(--text-heading);
  line-height: 1.3;
  margin: 12px 0 6px;
}
.chapter-opening .ornament { width: 36px; height: 1px; background: var(--accent-line); margin: 6px auto 0; }
.chapter-opening .status-line {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
}
.chapter-opening .status-line.draft { color: #a07335; }
.chapter-opening .status-line.todo  { color: #c5402d; }
.chapter-opening .status-line.done  { color: var(--validated); }

/* ── Markdown content styles ── */
.page-body h1 { font-family: 'Spectral', serif; font-size: 18px; font-weight: 600; text-align: center; margin: 4px 0 22px; line-height: 1.3; color: var(--text-heading); }
.page-body h2 {
  font-family: 'Inter', sans-serif;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 22px 0 9px;
  color: var(--text-quiet);
  display: flex; align-items: center; gap: 8px;
}
.page-body h3 {
  font-family: 'Spectral', serif;
  font-size: 14px;
  font-weight: 600;
  font-style: italic;
  margin: 16px 0 7px;
  color: var(--text-heading);
  display: flex; align-items: center; gap: 8px;
}

/* Validation tick — sits inline at the end of paragraphs */
.validate-tick {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 13px; height: 13px;
  border: 1px solid var(--text-muted);
  border-radius: 2px;
  background: transparent;
  color: transparent;
  font-size: 9px; line-height: 1;
  cursor: pointer;
  vertical-align: middle;
  margin-left: 4px;
  margin-bottom: 1px;
  opacity: 0.45;
  transition: all 0.15s;
}
.validate-tick::before { content: '✓'; opacity: 0.5; color: var(--text-muted); }
.validate-tick:hover { opacity: 1; }
.validate-tick:hover::before { opacity: 1; }
.validate-tick.validated {
  background: var(--validated); border-color: var(--validated);
  opacity: 1;
}
.validate-tick.validated::before { opacity: 1; color: #fff; }

/* Validated paragraph delimitation: green left border + tinted background */
.page-body p.validated {
  background: var(--validated-bg);
  border-left: 3px solid var(--validated);
  padding: 4px 8px 4px 9px;
  margin-left: -11px;
  border-radius: 0 2px 2px 0;
}
.page-body p.validated + p.validated { margin-top: -3px; }

.page-body p {
  margin: 0 0 9px;
  text-indent: 1.4em;
}
.page-body p:first-child,
.page-body h1 + p, .page-body h2 + p, .page-body h3 + p,
.page-body blockquote + p, .page-body ul + p, .page-body ol + p { text-indent: 0; }

.page-body blockquote {
  margin: 12px 0 12px 14px; padding: 0 0 0 14px;
  border-left: 2px solid var(--accent-line);
  color: var(--text-quiet); font-style: italic; font-size: 13.5px;
}
.page-body blockquote p { text-indent: 0; margin: 0 0 6px; }
.page-body ul, .page-body ol { margin: 6px 0 9px 18px; }
.page-body li { margin-bottom: 4px; text-indent: 0; }
.page-body strong { font-weight: 600; }
.page-body em { font-style: italic; }
.page-body hr {
  border: none; text-align: center; margin: 16px 0;
  color: var(--text-muted); font-size: 12px; letter-spacing: 0.3em;
}
.page-body hr:not(.pagebreak):not(.blankpage)::after { content: '· · ·'; }
.page-body hr.pagebreak, .page-body hr.blankpage { display: none; }

.page-body code {
  font-family: inherit; font-size: inherit;
  background: var(--code-bg);
  padding: 0 3px; border-radius: 2px; color: var(--text-quiet);
}
.page-body table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 12px; }
.page-body th, .page-body td { border: 0.5px solid var(--rule); padding: 6px 8px; text-align: left; vertical-align: top; }
.page-body th { background: var(--code-bg); font-weight: 600; }
.page-body a { color: var(--accent-bright); text-decoration: underline; text-decoration-thickness: 0.5px; text-underline-offset: 2px; }
body.light .page-body a { color: var(--accent-bright); }
.page-body > p > code:only-child,
.page-body p:has(> code:only-child) { display: none; }

/* Blank page */
.blank-page {
  height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.3;
}
.blank-page::before { content: '·'; }

/* ── Page footer ── */
.page-footer {
  height: var(--footer-h);
  padding: 4px 32px 8px;
  border-top: 0.5px solid var(--rule);
  flex-shrink: 0;
  display: flex; align-items: center;
}
.page-left .page-footer { justify-content: flex-start; }
.page-right .page-footer { justify-content: flex-end; }
.folio {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* ── Sidebar (TOC) ── */
.sidebar {
  position: fixed;
  top: 0; bottom: 0;
  left: -340px;
  width: 340px;
  background: linear-gradient(160deg, var(--sidebar-bg-1) 0%, var(--sidebar-bg-2) 100%);
  color: var(--sidebar-text);
  z-index: 100;
  display: flex; flex-direction: column;
  transition: left 0.28s ease;
  box-shadow: 4px 0 24px rgba(0,0,0,0.6);
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}
.sidebar.open { left: 0; }

.sidebar-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 99; opacity: 0; pointer-events: none;
  transition: opacity 0.28s;
}
.sidebar-overlay.visible { opacity: 1; pointer-events: auto; }

.sidebar-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(196,154,80,0.18);
  font-family: 'Inter', sans-serif;
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--sidebar-text-quiet);
  flex-shrink: 0;
}
#close-sidebar, #close-review, #close-validated {
  background: none; border: none; color: var(--accent);
  font-size: 24px; cursor: pointer; line-height: 1; padding: 0 2px;
}
.toc-list {
  flex: 1; overflow-y: auto; padding: 10px 0 20px;
  scrollbar-width: thin; scrollbar-color: rgba(196,154,80,0.3) transparent;
}
.toc-part {
  padding: 18px 18px 5px;
  font-family: 'Inter', sans-serif;
  font-size: 8.5px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--sidebar-text-quiet);
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 6px;
}
.toc-part:first-child { border-top: none; margin-top: 0; }
.toc-item {
  display: block; width: 100%;
  padding: 9px 18px;
  background: none; border: none; text-align: left;
  font-family: 'Spectral', serif;
  font-size: 13px;
  color: var(--sidebar-text);
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  line-height: 1.4;
}
.toc-item:hover, .toc-item:focus { background: rgba(196,160,96,0.10); color: var(--sidebar-text-bright); }
.toc-item.active { color: var(--sidebar-text-bright); background: rgba(196,160,96,0.14); }
.toc-item .validated-pct {
  font-family: 'Inter', sans-serif;
  font-size: 9px; color: var(--validated-bright);
  margin-left: 6px;
}

.sidebar-footer {
  display: flex; gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid rgba(196,154,80,0.18);
  flex-shrink: 0;
}
.ui-btn {
  flex: 1;
  background: rgba(196,154,80,0.10);
  border: 1px solid rgba(196,154,80,0.25);
  color: var(--sidebar-text);
  padding: 8px 10px;
  font-family: 'Inter', sans-serif;
  font-size: 11px; letter-spacing: 0.05em;
  cursor: pointer; border-radius: 3px;
  transition: background 0.15s, color 0.15s;
}
.ui-btn:hover { background: rgba(196,154,80,0.2); color: var(--sidebar-text-bright); }

/* ── Review panel (slides from right) ── */
.review-panel, .validated-panel {
  left: auto; right: -360px;
  transition: right 0.28s ease;
  box-shadow: -4px 0 24px rgba(0,0,0,0.6);
}
.review-panel.open, .validated-panel.open { left: auto; right: 0; }
@media (max-width: 820px) {
  .review-panel, .validated-panel {
    right: calc(-88vw - 8px); width: 88vw; max-width: 360px;
  }
  .review-panel.open, .validated-panel.open { right: 0; }
}

.review-empty {
  padding: 22px 18px;
  color: var(--sidebar-text-quiet);
  font-style: italic; font-size: 12px; line-height: 1.5;
}
.review-item, .validated-item {
  position: relative;
  padding: 12px 36px 12px 18px;
  border-top: 1px solid rgba(196,154,80,0.08);
  cursor: pointer;
  font-family: 'Spectral', serif;
  color: var(--sidebar-text);
  transition: background 0.12s;
}
.review-item:hover, .validated-item:hover { background: rgba(196,160,96,0.08); }
.review-item-chapter, .validated-item-chapter {
  font-family: 'Inter', sans-serif;
  font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--sidebar-text-quiet);
  margin-bottom: 6px;
}
.review-item-quote {
  font-size: 12.5px; font-style: italic;
  color: var(--sidebar-text-bright);
  margin-bottom: 6px; line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.review-item-note, .validated-item-section {
  font-size: 12px; color: var(--sidebar-text); line-height: 1.4; opacity: 0.85;
}
.validated-item-section { font-style: italic; }
.review-item-status {
  font-family: 'Inter', sans-serif;
  font-size: 10px; letter-spacing: 0.05em; margin-top: 6px;
  color: #d96b5b; display: none;
}
.review-item.modified .review-item-status { display: block; }
.review-item.modified .review-item-quote { text-decoration: line-through; opacity: 0.6; }
.review-item-dismiss, .validated-item-dismiss {
  position: absolute; top: 8px; right: 8px;
  width: 24px; height: 24px;
  background: none; border: none;
  color: var(--sidebar-text-quiet);
  font-size: 18px; cursor: pointer; line-height: 1;
  border-radius: 3px;
  transition: background 0.12s, color 0.12s;
}
.review-item-dismiss:hover, .validated-item-dismiss:hover {
  background: rgba(255,255,255,0.08); color: var(--sidebar-text-bright);
}

.ui-btn-primary {
  background: var(--accent); color: var(--bg-app); border: 1px solid var(--accent);
}
.ui-btn-primary:hover { background: var(--accent-bright); color: var(--bg-app); }
.ui-btn-danger {
  background: rgba(217,107,91,0.10);
  border-color: rgba(217,107,91,0.30);
  color: #e08977;
}
.ui-btn-danger:hover { background: rgba(217,107,91,0.18); color: #f0a092; }

/* Floating "Add for Review" button */
.review-float-btn {
  position: absolute; z-index: 200;
  background: var(--accent); color: var(--bg-app);
  border: none; border-radius: 4px;
  padding: 7px 12px;
  font-family: 'Inter', sans-serif; font-size: 12px; font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,0.45);
  white-space: nowrap;
  transition: transform 0.12s, background 0.12s;
}
.review-float-btn:hover { background: var(--accent-bright); transform: scale(1.04); }

mark.review-highlight {
  background: linear-gradient(transparent 55%, rgba(201,168,76,0.45) 55%);
  color: inherit; padding: 0; border-radius: 1px; cursor: pointer;
}
body.light mark.review-highlight {
  background: linear-gradient(transparent 55%, rgba(201,168,76,0.55) 55%);
}

/* Modals */
.review-modal {
  position: fixed; inset: 0; z-index: 300;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.review-modal[hidden] { display: none; }
.review-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(2px);
}
.review-modal-card {
  position: relative; width: 100%; max-width: 480px;
  background: var(--bg-page); color: var(--text-body);
  padding: 24px 24px 18px;
  border-radius: 6px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  font-family: 'Spectral', serif;
}
.review-modal-card-sm { max-width: 360px; }
.review-modal-header {
  font-family: 'Inter', sans-serif;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 14px;
}
.review-modal-quote {
  font-style: italic; font-size: 14px; line-height: 1.55;
  background: rgba(0,0,0,0.04);
  padding: 12px 14px;
  border-left: 3px solid var(--accent-line);
  border-radius: 2px;
  max-height: 140px; overflow-y: auto;
  margin-bottom: 8px;
}
.review-modal-meta {
  font-family: 'Inter', sans-serif;
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.review-modal-text { font-size: 14px; margin: 4px 0 16px; color: var(--text-quiet); }
.review-modal textarea {
  width: 100%; min-height: 100px;
  padding: 12px;
  font-family: 'Spectral', serif; font-size: 14px;
  border: 1px solid var(--rule);
  background: transparent;
  border-radius: 4px;
  color: var(--text-body);
  resize: vertical; outline: none;
  margin-bottom: 14px;
}
.review-modal textarea:focus { border-color: var(--accent-line); }
.review-modal-actions {
  display: flex; justify-content: flex-end; gap: 8px;
}
.review-modal-actions .ui-btn {
  background: transparent;
  border: 1px solid var(--rule); color: var(--text-body);
  padding: 9px 16px;
  font-family: 'Inter', sans-serif; font-size: 12px; letter-spacing: 0.05em;
  border-radius: 3px; cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.review-modal-actions .ui-btn:hover { background: rgba(0,0,0,0.04); }
.review-modal-actions .ui-btn-primary {
  background: var(--text-heading); color: var(--bg-page); border-color: var(--text-heading);
}
.review-modal-actions .ui-btn-primary:hover { opacity: 0.88; background: var(--text-heading); color: var(--bg-page); }
.review-modal-actions .ui-btn-danger {
  background: #a83a2c; color: #fff; border-color: #a83a2c;
}
.review-modal-actions .ui-btn-danger:hover { background: #8a3024; color: #fff; }

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  z-index: 400;
  background: var(--text-heading); color: var(--bg-page);
  padding: 10px 18px;
  font-family: 'Inter', sans-serif; font-size: 12px; letter-spacing: 0.04em;
  border-radius: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  animation: toastIn 0.2s ease-out;
}
.toast[hidden] { display: none; }
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* Offscreen pagination measurer (mirrors .page-body exactly) */
.page-measurer {
  position: fixed;
  left: -99999px; top: 0;
  visibility: hidden;
  pointer-events: none;
  width: calc(var(--page-w) - 0px);
  padding: var(--page-pad-y-top) var(--page-pad-x) 6px;
  font-family: 'Spectral', Georgia, serif;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-body);
  text-align: justify;
  hyphens: auto;
}
.page-measurer h1 { font-family: 'Spectral', serif; font-size: 18px; font-weight: 600; text-align: center; margin: 4px 0 22px; line-height: 1.3; }
.page-measurer h2 { font-family: 'Inter', sans-serif; font-size: 10.5px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; margin: 22px 0 9px; }
.page-measurer h3 { font-family: 'Spectral', serif; font-size: 14px; font-weight: 600; font-style: italic; margin: 16px 0 7px; }
.page-measurer p { margin: 0 0 9px; text-indent: 1.4em; }
.page-measurer p:first-child, .page-measurer h1 + p, .page-measurer h2 + p, .page-measurer h3 + p,
.page-measurer blockquote + p, .page-measurer ul + p, .page-measurer ol + p { text-indent: 0; }
.page-measurer blockquote { margin: 12px 0 12px 14px; padding: 0 0 0 14px; border-left: 2px solid; font-style: italic; font-size: 13.5px; }
.page-measurer ul, .page-measurer ol { margin: 6px 0 9px 18px; }
.page-measurer li { margin-bottom: 4px; text-indent: 0; }
.page-measurer table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 12px; }
.page-measurer th, .page-measurer td { border: 0.5px solid; padding: 6px 8px; vertical-align: top; }
.page-measurer hr { margin: 16px 0; }

/* ── Responsive: mobile ── */
@media (max-width: 820px) {
  .stage { padding: 8px 0; gap: 0; }
  .nav-btn { display: none; }
  .spine { display: none; }
  .page-left { display: none; }
  .book { border-radius: 0; box-shadow: none; width: 100vw; }
  .page-right {
    width: 100vw;
    max-width: 100vw;
    height: calc(100dvh - 50px);
    border-radius: 0;
    box-shadow: none;
  }
  /* On mobile, page-body scrolls — same content per page, just scrollable if needed */
  .page-body {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 22px 22px 8px;
    font-size: 15px;
  }
  .page-body::-webkit-scrollbar { display: none; }
  .page-definitions {
    max-height: none;
    padding: 6px 22px 6px;
  }
  .page-header, .page-footer { padding-left: 22px; padding-right: 22px; }

  .chapter-opening { padding: 18px 14px 12px; }
  .opening-top { margin-top: 24px; }
  .chapter-opening .chapter-title { font-size: 24px; }
}

/* Sidebar on mobile */
@media (max-width: 820px) {
  .sidebar { width: 88vw; max-width: 360px; left: calc(-88vw - 8px); }
}

/* ── Login page ── */
.login-body {
  background: var(--bg-app);
  font-family: 'Spectral', Georgia, serif;
  display: flex; align-items: center; justify-content: center;
  height: 100vh; height: 100dvh; overflow: auto; padding: 20px;
}
.login-card {
  background: var(--bg-page); padding: 48px 36px;
  border-radius: 4px; width: 100%; max-width: 380px;
  box-shadow: 0 24px 80px var(--shadow-deep);
  text-align: center; color: var(--text-body);
}
.login-ornament { color: var(--accent-line); font-size: 14px; margin-bottom: 18px; letter-spacing: 0.5em; }
.login-title { font-family: 'Spectral', serif; font-weight: 600; font-style: italic; font-size: 28px; color: var(--text-heading); margin-bottom: 8px; letter-spacing: -0.01em; }
.login-sub { font-size: 13px; color: var(--text-quiet); margin-bottom: 28px; line-height: 1.5; font-style: italic; }
.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-form input {
  width: 100%; padding: 12px 14px;
  font-family: 'Spectral', serif; font-size: 15px;
  border: 1px solid var(--rule); background: transparent;
  border-radius: 3px; color: var(--text-body); outline: none;
}
.login-form input:focus { border-color: var(--accent-line); }
.login-form button {
  width: 100%; padding: 12px;
  background: var(--text-heading); color: var(--bg-page);
  border: none; border-radius: 3px;
  font-family: 'Inter', sans-serif;
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  cursor: pointer; transition: opacity 0.15s;
}
.login-form button:hover:not(:disabled) { opacity: 0.85; }
.login-form button:disabled { opacity: 0.5; cursor: default; }
.login-error { color: #a83a2c; font-size: 12px; font-style: italic; margin-top: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }