/* player.css — narrated book styling.
   Highlight glow is verbatim from christalyzer's playback-ui.js:
   .active -> textShadow 0 0 8px rgba(255,200,0,0.6) */
:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #7a7366;
  --brown: #42210b;
  --line: #e8e4da;
  --card: #ffffff;
  --glow: rgba(255, 200, 0, 0.6);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
}

/* ---------- top bar ---------- */
#topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; flex-direction: column; line-height: 1.15; }
.logo { display: flex; align-items: center; }
.logo img {
  height: 40px;
  width: auto;
  display: block;
  transition: transform 0.15s, opacity 0.15s;
}
.logo:hover img { transform: scale(1.06); opacity: 0.92; }
.brand-title { font-weight: 700; font-size: 16px; color: var(--brown); text-transform: uppercase; letter-spacing: 0.5px; }
.brand-sub { font-size: 12px; color: var(--muted); }
.controls { display: flex; gap: 6px; align-items: center; }
.controls button {
  font-size: 15px;
  width: 38px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}
.controls button:hover { border-color: var(--brown); }
.controls button.primary {
  width: 52px;
  background: var(--brown);
  color: #fff;
  border-color: var(--brown);
}
.controls button#btnLocate {
  width: auto;
  padding: 0 12px;
  font-size: 12px;
  letter-spacing: 0.4px;
}
/* autoscroll toggle switch */
.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 4px;
  cursor: pointer;
  user-select: none;
}
.toggle-label { font-size: 12px; color: var(--muted); }
.toggle input { display: none; }
.switch {
  width: 38px;
  height: 20px;
  border-radius: 12px;
  background: #cfc9bc;
  position: relative;
  transition: background 0.18s;
}
.switch .knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: left 0.18s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
.toggle input:checked + .switch { background: var(--brown); }
.toggle input:checked + .switch .knob { left: 20px; }

/* ---------- settings popup ---------- */
.settings-pop {
  position: fixed;
  bottom: 70px;
  right: 16px;
  z-index: 30;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 230px;
}
.settings-pop.hidden { display: none; }
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.settings-label { font-size: 12.5px; color: var(--muted); }
.settings-row input[type="color"] {
  width: 42px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: none;
  padding: 0;
  cursor: pointer;
}
.settings-row input[type="range"] { flex: 1; accent-color: var(--brown); }
.presets { display: flex; gap: 8px; justify-content: flex-end; }
.swatch {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--line);
  cursor: pointer;
  padding: 0;
}
.settings-actions { display: flex; justify-content: flex-end; }
.settings-actions button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--brown);
  color: #fff;
  font-size: 12px;
  padding: 5px 14px;
  cursor: pointer;
}
.controls button#btnSettings { background: transparent; }
.dlbtn {
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--brown);
  font-size: 12px;
  letter-spacing: 0.4px;
  text-decoration: none;
  cursor: pointer;
  font-family: Georgia, "Times New Roman", serif;
}
.dlbtn:hover { border-color: var(--brown); }
.controls button#btnShare {
  width: auto;
  padding: 0 12px;
  font-size: 12px;
  letter-spacing: 0.4px;
}
.controls button#btnDownload {
  width: auto;
  padding: 0 12px;
  font-size: 12px;
  letter-spacing: 0.4px;
}
.bar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.bar-actions button {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 12px;
  letter-spacing: 0.4px;
  padding: 0 14px;
  height: 34px;
  border: 1.5px solid var(--brown);
  border-radius: 18px;
  background: #ffffff;
  color: var(--brown);
  cursor: pointer;
}
.bar-actions button:hover { background: var(--brown); color: #ffffff; }
.bar-actions button#btnDownload { background: var(--brown); color: #ffffff; }
.bar-actions button#btnDownload:hover { filter: brightness(1.08); }

/* ---------- download modal (options + Burrow + GMG support) ---------- */
.download-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.download-modal.hidden { display: none; }
.download-card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
  padding: 26px 30px 22px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.download-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: transparent;
  font-size: 18px;
  cursor: pointer;
  color: var(--muted);
}
.download-close:hover { color: var(--brown); }
.download-card h2 {
  margin: 4px 0 6px;
  color: var(--brown);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 18px;
}
.download-line { margin: 0 0 16px; font-size: 13.5px; color: var(--muted); line-height: 1.6; }
.download-options { display: flex; flex-direction: column; gap: 10px; }
.download-btn {
  display: block;
  width: 100%;
  padding: 13px 18px;
  border-radius: 24px;
  border: none;
  background: var(--brown);
  color: #ffffff;
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 0.4px;
}
.download-btn:hover { opacity: 0.92; }
/* support images — GMG on top, Burrow below: identical full-width buttons */
.gift-subtle { margin-top: 22px; }
.gmg-tag, .burrow-tag {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 72px;
}
.gmg-tag { margin: 0; }
.gmg-tag img, .burrow-tag img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0.95;
  transition: transform 0.2s, opacity 0.2s;
}
.gmg-tag:hover img, .burrow-tag:hover img { opacity: 1; }
.burrow-tag { margin: 8px 0 0; }

/* ---------- GMG gift section (subtle, not adware) ---------- */
.gift-line { margin: 0 0 6px; font-size: 13.5px; color: var(--muted); line-height: 1.6; }

/* ---------- lander ---------- */
#lander {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
  transition: opacity 0.6s;
}
#lander.gone { opacity: 0; pointer-events: none; }
.lander-stage {
  position: relative;
  flex-shrink: 0;
}
.lander-cover {
  height: min(60vh, 600px);
  width: auto;
  max-width: 84vw;
  display: block;
  border-radius: 6px;
}
.lander-cover.back {
  position: absolute;
  top: 0;
  left: 0;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
  transition: transform 0.25s;
}
.lander-cover.front {
  position: relative;
  z-index: 2;
  cursor: zoom-in;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.3);
  transition: transform 0.25s, opacity 0.5s;
  will-change: transform;
}
/* hover zoom so the cover text is readable */
#lander:not(.open) .lander-cover.front:hover { transform: scale(1.3); }
#lander.open .lander-cover.back { cursor: zoom-in; z-index: 3; }
#lander.open .lander-cover.back:hover { transform: scale(1.3); }
#lander.open .lander-cover.front {
  transform: translateX(112%) rotate(5deg);
  opacity: 0.4;
  cursor: default;
  transition: transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1), opacity 0.5s;
}
.lander-buttons {
  display: flex;
  gap: 30px;
  margin-top: 38px;
  transform: translateY(60px);
  opacity: 0;
  transition: transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) 0.2s, opacity 0.4s 0.2s, margin-top 0.25s;
}
#lander.open .lander-buttons { transform: translateY(0); opacity: 1; }
/* while the cover zooms, push the buttons down with it so they never get covered */
#lander:not(.open):has(.lander-cover.front:hover) .lander-buttons,
#lander.open:has(.lander-cover.back:hover) .lander-buttons {
  margin-top: calc(38px + 0.15 * min(60vh, 600px));
}
.lander-buttons button {
  font-family: inherit;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: 26px;
  border: none;
  background: var(--brown);
  color: #ffffff;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: opacity 0.2s, transform 0.2s;
}
.lander-buttons button:hover { opacity: 0.9; transform: translateY(-1px); }
.lander-buttons button#btnHearBack {
  background: #ffffff;
  color: var(--brown);
  border: 1.5px solid var(--brown);
}
.lander-buttons button:hover { background: var(--brown); color: #ffffff; }
.status {
  font-size: 12px;
  color: var(--muted);
  min-width: 200px;
  text-align: right;
  white-space: nowrap;
  cursor: pointer;
}
.status:hover { text-decoration: underline; }
.status.playing { color: var(--brown); }

/* ---------- footer player bar ---------- */
#playerbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-top: 1px solid var(--line);
}
#controls { flex: 1 1 auto; justify-content: flex-start; }
#playerbar .status {
  flex: none;
  min-width: 0;
  max-width: 24vw;
  margin-left: 0;
  text-align: left;
}
#barActions { flex: none; margin-left: auto; }

/* ---------- book ---------- */
#book {
  max-width: 720px;
  margin: 0 auto;
  padding: 34px 26px 120px;
  font-size: 18.5px;
  line-height: 1.8;
  text-align: justify;
}
section.chapter { margin-bottom: 64px; scroll-margin-top: 74px; }
h1.ch-title {
  font-size: 25px;
  text-align: center;
  margin: 10px 0 4px;
  padding-bottom: 0;
  border-bottom: none;
  color: var(--brown);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
/* chapter subtitle — centered directly under the chapter number */
section.chapter > h3.sec-title:first-of-type {
  text-align: center;
  margin: 0 0 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 20px;
}
/* front matter: more space above THE EIGHT TRUTHS */
#ch-0 > h3.sec-title:first-of-type { margin-top: 44px; }
h3.sec-title {
  font-size: 19px;
  margin: 34px 0 14px;
  color: var(--brown);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: left;
  font-weight: 700;
  scroll-margin-top: 74px;
}
/* sub-chapter (###) headings — visual only, smaller, left-aligned, separated */
.sub-sec-title {
  font-size: 14.5px;
  margin: 24px 0 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: left;
  font-weight: 700;
  scroll-margin-top: 74px;
}

.tts-sent {
  transition: text-shadow 0.15s, background 0.15s;
  border-radius: 3px;
  cursor: pointer;
}
.tts-sent:hover { background: rgba(255, 200, 0, 0.08); }
.tts-sent.active {
  text-shadow: 0 0 8px rgba(255, 200, 0, 0.6);
  background: rgba(255, 200, 0, 0.14);
}
.tts-sent.missing { color: #b9b2a2; cursor: default; }
.tts-sent.missing:hover { background: transparent; }

/* ---------- word formatting (from sentence-manifest.json) ---------- */
.fmt-word { border-radius: 2px; }
.fmt-bold { font-weight: 700; }
.fmt-color { font-weight: 700; }
/* subtle shimmer while the sentence is being narrated — static stays clean */
.tts-sent.active .fmt-word {
  animation: fmt-shimmer 1.8s ease-in-out infinite;
}
@keyframes fmt-shimmer {
  0%, 100% { text-shadow: 0 0 0 rgba(255, 200, 0, 0); }
  50% { text-shadow: 0 0 10px rgba(255, 200, 0, 0.75); }
}

/* ---------- covers ---------- */
.cover-wrap, .back-cover-wrap {
  text-align: center;
  margin: 6px 0 30px;
}
.back-cover-wrap { margin: 80px 0 50px; }
img.cover {
  max-width: 320px;
  width: 100%;
  border-radius: 4px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
  display: inline-block;
}
img.cover.front { cursor: pointer; transition: transform 0.15s, box-shadow 0.15s; }
img.cover.front:hover { transform: scale(1.015); box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28); }
.back-cover-wrap img.cover { max-width: 460px; }
/* title + subtitle centered with the cover */
#ch-0 > p.para:first-of-type { text-align: center; margin: 26px 0 6px; }
#ch-0 > p.para:first-of-type .tts-sent {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--brown);
  text-transform: uppercase;
  letter-spacing: 2px;
}
#ch-0 > p.para:nth-of-type(2) { text-align: center; margin: 0 0 30px; }
#ch-0 > p.para:nth-of-type(2) .tts-sent {
  display: block;
  font-size: 19px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2.5px;
}
/* body paragraphs — one block per MD line */
p.para { margin: 0 0 20px; }

/* ---------- clickable sources (not spoken) ---------- */
.srcrow {
  margin: 2px 0 20px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  text-align: left;
}
.srcrow-label {
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 11.5px;
  letter-spacing: 1px;
  margin-right: 4px;
}
.srcrow a {
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px dotted rgba(66, 33, 11, 0.45);
}
.srcrow a:hover { border-bottom-style: solid; }
.srcrow a.src-link { cursor: pointer; }
.srcrow .src-plain { color: var(--muted); cursor: default; }
.srcrow.chapter-srcrow {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 26px;
}
.srcrow.chapter-srcrow .src-item {
  display: block;
  padding: 3px 0;
  line-height: 1.6;
}
.srcrow.chapter-srcrow .src-num {
  display: inline-block;
  min-width: 22px;
  color: var(--brown);
  font-weight: 700;
}
.srcrow.chapter-srcrow .src-typegroup {
  margin: 10px 0 4px;
  padding-top: 8px;
  border-top: 1px dashed rgba(66, 33, 11, 0.22);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.srcrow.chapter-srcrow .src-typegroup:first-of-type {
  margin-top: 2px;
  padding-top: 0;
  border-top: 0;
}
.srcrow.chapter-srcrow .src-typegroup-name {
  font-weight: 700;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text);
}
.srcrow.chapter-srcrow .src-typegroup-count {
  display: inline-block;
  margin-left: 7px;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(66, 33, 11, 0.1);
  color: var(--brown);
}
.srcrow.chapter-srcrow .src-kind {
  display: inline-block;
  margin-right: 8px;
  padding: 0 6px;
  border-radius: 4px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.045);
  vertical-align: 1px;
}

/* ---------- source card (click a source) ---------- */
.src-modal {
  position: fixed;
  inset: 0;
  z-index: 140;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.src-modal.hidden { display: none; }
.src-card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
  padding: 26px 30px 22px;
  max-width: 520px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  position: relative;
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
}
.src-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: transparent;
  font-size: 16px;
  cursor: pointer;
  color: var(--muted);
}
.src-close:hover { color: var(--brown); }
.src-card-inner { display: flex; flex-direction: column; gap: 14px; }
.src-head { display: flex; flex-direction: column; gap: 6px; padding-right: 24px; }
.src-badge {
  align-self: flex-start;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--brown);
  border: 1px solid rgba(66, 33, 11, 0.35);
  border-radius: 4px;
  padding: 2px 8px;
}
.src-title { margin: 0; color: var(--brown); font-size: 20px; line-height: 1.3; }
.src-short { margin: 0; color: var(--muted); font-size: 13.5px; }
.src-quotes {
  margin: 0;
  padding: 12px 16px;
  background: rgba(66, 33, 11, 0.05);
  border-radius: 8px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text);
}
.src-desc { margin: 0; font-size: 14px; line-height: 1.65; color: var(--text); }
.src-openrow { display: flex; }
.src-open {
  display: inline-block;
  color: var(--brown);
  text-decoration: none;
  border: 1px solid rgba(66, 33, 11, 0.4);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13.5px;
}
.src-open:hover { background: rgba(66, 33, 11, 0.06); }
/* three links per source: original · local copy · archived backup */
.src-links { display: flex; flex-direction: column; gap: 8px; }
.src-linkrow {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(66, 33, 11, 0.03);
}
.src-linklabel {
  flex: none;
  min-width: 108px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
}
.src-linkrow .src-open {
  flex: 1;
  border: none;
  padding: 2px 0;
  font-size: 13.5px;
  word-break: break-word;
}
.src-linkrow .src-open:hover { background: transparent; text-decoration: underline; }
.src-mentions { border-top: 1px solid var(--line); padding-top: 12px; }
.src-mentions-label {
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 11.5px;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.src-mentions-list { display: flex; flex-direction: column; gap: 6px; }
.src-mention {
  text-align: left;
  border: 1px solid var(--line);
  background: #ffffff;
  border-radius: 8px;
  padding: 9px 12px;
  color: var(--text);
  font-size: 13.5px;
  cursor: pointer;
  font-family: inherit;
}
.src-mention:hover { border-color: var(--brown); color: var(--brown); background: rgba(66, 33, 11, 0.04); }
.src-none { margin: 0; color: var(--muted); font-size: 13px; }
.src-missing {
  margin: 0;
  padding: 8px 12px;
  border: 1px dashed rgba(66, 33, 11, 0.4);
  border-radius: 8px;
  color: var(--brown);
  font-size: 12.5px;
  background: rgba(66, 33, 11, 0.04);
}

/* ---------- author's note modal ---------- */
.notice-modal {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.notice-modal.hidden { display: none; }
.notice-card {
  background: #ffffff;
  border-radius: 14px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  padding: 30px 34px 26px;
  max-width: 460px;
  width: 100%;
  position: relative;
  text-align: center;
  color: var(--text);
}
.notice-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: transparent;
  font-size: 18px;
  cursor: pointer;
  color: var(--muted);
}
.notice-close:hover { color: var(--brown); }
.notice-logo {
  width: 110px;
  height: auto;
  margin: 4px auto 12px;
  display: block;
}
.notice-title {
  margin: 0 0 4px;
  color: var(--brown);
  font-size: 21px;
  line-height: 1.3;
}
.notice-sub {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.4px;
}
.notice-player {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(66, 33, 11, 0.05);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
}
.notice-play {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--brown);
  color: #fff;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.notice-play:hover { filter: brightness(1.1); }
.notice-scrub {
  flex: 1;
  min-width: 0;
  accent-color: var(--brown);
  cursor: pointer;
}
.notice-time {
  flex: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

/* ---------- table of contents ---------- */
#toc {
  max-width: 620px;
  margin: 0 auto 54px;
  padding: 0 6px;
}
.toc-title {
  font-size: 22px;
  color: var(--brown);
  text-transform: uppercase;
  letter-spacing: 2.5px;
  text-align: center;
  margin: 22px 0 18px;
}
.toc-list { display: flex; flex-direction: column; gap: 2px; }
a.toc-item {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 9px 12px;
  text-decoration: none;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  border-radius: 3px;
}
a.toc-item:hover { background: rgba(66, 33, 11, 0.06); }
.toc-num {
  font-weight: 700;
  color: var(--brown);
  text-transform: uppercase;
  white-space: nowrap;
  font-size: 14.5px;
  letter-spacing: 1px;
}
.toc-sub {
  font-size: 15.5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
/* section + sub-chapter entries — smaller, quieter, still clickable */
a.toc-sec {
  display: block;
  padding: 4px 12px 4px 28px;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(66, 33, 11, 0.08);
  border-radius: 3px;
}
a.toc-sec:hover { background: rgba(66, 33, 11, 0.05); color: var(--brown); }
a.toc-subsec {
  display: block;
  padding: 3px 12px 3px 46px;
  font-size: 12.5px;
  color: var(--muted);
  text-decoration: none;
  border-radius: 3px;
}
a.toc-subsec:hover { background: rgba(66, 33, 11, 0.05); color: var(--brown); }

/* ---------- footer bar ---------- */

/* ---------- mobile: slim player bar (≤640px) ---------- */
/* Hides the sentence-status readout and Share/Download actions on phones;
   keeps transport, "Go to playing", and the autoscroll toggle. The
   highlight-settings gear stays where it fits (≥411px) and drops on
   narrower screens; the toggle label drops only on tiny phones. */
@media (max-width: 640px) {
  #playerbar { gap: 8px; padding: 8px 10px; justify-content: center; }
  #playerbar .status { display: none; }
  #barActions { display: none; }
  #controls { flex: 0 1 auto; justify-content: center; gap: 5px; }
  .controls button { width: 34px; height: 32px; font-size: 14px; border-radius: 7px; }
  .controls button.primary { width: 46px; }
  .controls button#btnLocate { padding: 0 8px; font-size: 11px; letter-spacing: 0.2px; }
  .toggle { margin-left: 2px; gap: 6px; }
  .toggle-label { font-size: 11px; }
  .switch { width: 36px; height: 19px; border-radius: 11px; }
  .switch .knob { width: 15px; height: 15px; top: 2px; left: 2px; }
  .toggle input:checked + .switch .knob { left: 19px; }
  .controls button#btnSettings { width: 34px; }
}
/* narrow phones: the gear no longer fits beside the labelled toggle */
@media (max-width: 410px) {
  .controls button#btnSettings { display: none; }
}
/* tiny screens: keep the toggle switch, drop its label text */
@media (max-width: 330px) {
  .toggle-label { display: none; }
}

/* ---------- mobile: header, text, and TOC refinements (≤640px) ---------- */
@media (max-width: 640px) {
  /* top header: shrink so "THE POWER OF THE PARALLEL" fits on one line */
  #topbar { padding: 8px 12px; gap: 10px; }
  .logo img { height: 30px; }
  .brand-title { font-size: 13px; letter-spacing: 0.3px; white-space: nowrap; }
  .brand-sub { font-size: 11px; }
  /* justified text creates giant gaps on narrow screens — go left-aligned */
  #book { text-align: left; }
  p.para { text-align: left; }
  /* TOC: stack "CHAPTER N" above the chapter title; never justify */
  #toc { padding: 0 8px; }
  .toc-title { font-size: 18px; letter-spacing: 1.5px; }
  a.toc-item { flex-direction: column; gap: 2px; align-items: flex-start; padding: 8px 6px; }
  .toc-num { font-size: 13px; text-align: left; }
  .toc-sub { font-size: 13.5px; text-align: left; }
  a.toc-sec { padding: 4px 8px 4px 14px; }
  a.toc-subsec { padding: 3px 8px 3px 24px; }
}