:root {
  color-scheme: light dark;
  --bg: #f6f0e6;
  --panel: rgba(255, 252, 246, 0.7);
  --panel-strong: #fffaf2;
  --text: #443a30;
  --muted: #998b7b;
  --line: rgba(111, 87, 62, 0.12);
  --accent: #b9785d;
  --accent-soft: rgba(185, 120, 93, 0.14);
  --blue-soft: rgba(151, 164, 157, 0.16);
  --shadow: 0 20px 55px rgba(89, 65, 42, 0.1);
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 3%, rgba(255, 255, 255, 0.82), transparent 24rem),
    linear-gradient(135deg, #f9f4eb 0%, var(--bg) 48%, #efe5d7 100%);
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.025'/%3E%3C/svg%3E");
  content: "";
  pointer-events: none;
}

button,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.splash-screen {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: max(28px, env(safe-area-inset-top)) 24px max(28px, env(safe-area-inset-bottom));
  background:
    radial-gradient(circle at 50% 32%, rgba(255, 255, 255, 0.92), transparent 28rem),
    #f6f0e6;
  color: #443a30;
  opacity: 1;
  visibility: visible;
  transition: opacity 520ms ease, visibility 520ms ease;
}

.splash-screen::before {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.035'/%3E%3C/svg%3E");
  content: "";
  pointer-events: none;
}

.splash-screen.leaving {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-paper {
  position: relative;
  z-index: 1;
  width: min(430px, 92vw);
  text-align: center;
  animation: splash-arrive 700ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.splash-art-wrap {
  position: relative;
  width: min(300px, 67vw);
  margin: 0 auto -2px;
}

.splash-art {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 46%;
  mix-blend-mode: multiply;
  filter: drop-shadow(0 18px 28px rgba(95, 70, 45, 0.1));
  animation: splash-breathe 2.8s ease-in-out infinite;
}

.public-splash-art {
  display: grid;
  width: min(220px, 54vw);
  height: min(150px, 36vw);
  margin-inline: auto;
  place-items: center;
}

.public-book-emblem {
  display: grid;
  width: 132px;
  height: 94px;
  place-items: center;
  border: 2px solid rgba(121, 92, 70, 0.34);
  border-radius: 12px 12px 34px 34px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.6) 49.3%, rgba(135, 102, 76, 0.2) 49.5% 50.5%, rgba(255, 255, 255, 0.6) 50.7%),
    #f2dfbf;
  color: #b9776a;
  box-shadow: 0 18px 32px rgba(89, 61, 42, 0.12);
  font-family: Georgia, serif;
  font-size: 58px;
  line-height: 1;
}

.splash-star {
  position: absolute;
  color: #c99466;
  animation: splash-twinkle 1.8s ease-in-out infinite;
}

.star-one {
  top: 20%;
  right: 2%;
  font-size: 22px;
}

.star-two {
  top: 43%;
  left: 1%;
  font-size: 34px;
  animation-delay: 500ms;
}

.splash-kicker {
  margin: 8px 0 7px;
  color: #a3917e;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.splash-title {
  color: #443a30;
  font-size: clamp(34px, 7vw, 46px);
}

.splash-copy {
  margin: 14px 0 18px;
  color: #8f7f6e;
  font-family: Georgia, "Songti SC", serif;
  font-size: 15px;
}

.page-loader {
  display: flex;
  justify-content: center;
  gap: 7px;
}

.page-loader i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #bd8065;
  animation: page-dot 1.2s ease-in-out infinite;
}

.page-loader i:nth-child(2) {
  animation-delay: 150ms;
}

.page-loader i:nth-child(3) {
  animation-delay: 300ms;
}

@keyframes splash-arrive {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes splash-breathe {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes splash-twinkle {
  0%, 100% { opacity: 0.35; transform: scale(0.86) rotate(-5deg); }
  50% { opacity: 1; transform: scale(1.08) rotate(6deg); }
}

@keyframes page-dot {
  0%, 70%, 100% { opacity: 0.28; transform: translateY(0); }
  35% { opacity: 1; transform: translateY(-4px); }
}

@media (prefers-reduced-motion: reduce) {
  .splash-paper,
  .splash-art,
  .splash-star,
  .page-loader i {
    animation: none;
  }
}

.app {
  display: grid;
  grid-template-columns: 320px 320px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar,
.chapters,
.reader {
  min-width: 0;
  padding: 28px;
}

.sidebar,
.chapters {
  background: rgba(255, 250, 242, 0.32);
  backdrop-filter: blur(12px);
}

.sidebar,
.chapters {
  border-right: 1px solid var(--line);
}

.topbar,
.panel-head,
.reader-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.reader-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.topbar-actions {
  display: flex;
  gap: 8px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-family: Georgia, "Songti SC", serif;
  font-size: 38px;
  line-height: 1;
}

h2 {
  font-family: Georgia, "Songti SC", serif;
  font-size: 27px;
  line-height: 1.12;
}

.welcome-note {
  max-width: 13rem;
  margin: 12px 0 0;
  color: var(--muted);
  font-family: Georgia, "Songti SC", serif;
  font-size: 14px;
  line-height: 1.65;
}

.mobile-back {
  display: none;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}

.books,
.chunk-list {
  display: grid;
  gap: 12px;
}

.library-notes[hidden],
.books[hidden],
.annotation-home-entry[hidden] {
  display: none;
}

.annotation-home-entry {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  margin-bottom: 28px;
  border: 1px solid rgba(185, 120, 93, 0.14);
  border-radius: 20px;
  padding: 15px 16px;
  background: linear-gradient(135deg, rgba(255, 250, 242, 0.9), rgba(185, 120, 93, 0.08));
  color: var(--text);
  text-align: left;
}

.annotation-home-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 19px;
}

.annotation-home-entry strong,
.annotation-home-entry small {
  display: block;
}

.annotation-home-entry strong {
  font-size: 15px;
}

.annotation-home-entry small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

.annotation-home-arrow {
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 26px;
}

.library-notes {
  width: 100%;
}

.library-notes-head {
  position: sticky;
  z-index: 8;
  top: max(-28px, calc(env(safe-area-inset-top) * -1));
  display: block;
  margin: -12px -8px 20px;
  padding: 12px 8px 14px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(20px);
}

.library-notes-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.library-note-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(140px, 0.45fr);
  gap: 10px;
  margin-top: 14px;
}

.library-note-search {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 13px;
  background: rgba(255, 252, 246, 0.82);
  color: var(--muted);
}

.library-note-search input,
.library-note-book-filter {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  outline: none;
}

.library-note-book-filter {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 12px;
  background: rgba(255, 252, 246, 0.82);
}

.library-notes-list {
  display: grid;
  gap: 14px;
}

.library-note-book {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
}

.library-note-book summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
}

.library-note-book summary::-webkit-details-marker {
  display: none;
}

.library-note-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 58px;
  border-radius: 6px 10px 10px 6px;
  background: linear-gradient(145deg, #d9b39b, #b9785d);
  color: #fffaf2;
  font-family: "Songti SC", Georgia, serif;
  font-size: 20px;
  box-shadow: 0 8px 18px rgba(85, 58, 38, 0.15);
}

.library-note-identity strong,
.library-note-identity small {
  display: block;
}

.library-note-identity small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.library-note-chevron {
  color: var(--muted);
  font-size: 20px;
  transition: transform 180ms ease;
}

.library-note-book[open] .library-note-chevron {
  transform: rotate(180deg);
}

.library-book-annotations {
  display: grid;
  gap: 12px;
  padding: 0 14px 14px;
}

.library-annotation-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-width: 0;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 18px;
  padding: 17px 18px;
  background: var(--panel);
  color: var(--text);
}

.annotation-index-meta,
.annotation-index-kind {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.annotation-index-quote {
  overflow: hidden;
  color: var(--muted);
  font-family: "Songti SC", "STSong", Georgia, serif;
  font-size: 14px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.annotation-index-note {
  margin: 0;
  font-size: 16px;
  font-weight: 650;
  line-height: 1.55;
}

.passage-conversation {
  gap: 12px;
}

.passage-quote {
  margin: 0;
  padding: 10px 12px;
  border-left: 3px solid var(--accent-soft);
  border-radius: 0 12px 12px 0;
  background: rgba(185, 120, 93, 0.055);
  -webkit-line-clamp: 4;
}

.passage-quote-wrap {
  position: relative;
}

.passage-quote.has-overflow {
  -webkit-mask-image: linear-gradient(to bottom, #000 0 68%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0 68%, transparent 100%);
}

.passage-quote-wrap.expanded .passage-quote {
  display: block;
  overflow: visible;
  -webkit-line-clamp: unset;
  -webkit-mask-image: none;
  mask-image: none;
}

.passage-quote-toggle {
  display: block;
  margin: 7px 4px 0 auto;
  border: 0;
  border-radius: 999px;
  padding: 6px 11px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
}

.passage-quote-toggle[hidden] {
  display: none;
}

.passage-voices {
  display: grid;
  gap: 9px;
}

.passage-voice {
  position: relative;
  border-radius: 14px;
  padding: 12px 14px 11px;
}

.passage-voice.my-voice {
  margin-right: 9%;
  background: rgba(185, 120, 93, 0.11);
}

.passage-voice.partner-voice {
  margin-left: 9%;
  background: rgba(151, 164, 157, 0.14);
}

.passage-speaker {
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.partner-voice .passage-speaker {
  color: #74877e;
}

.passage-voice .annotation-index-kind {
  display: block;
  margin-top: 7px;
  opacity: 0.78;
}

.conversation-mark {
  color: var(--muted);
  font-family: "Songti SC", Georgia, serif;
  font-size: 12px;
}

.library-annotation-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 3px;
}

.jump-to-source {
  border: 0;
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.library-notes-empty {
  padding: 40px 20px;
  color: var(--muted);
  text-align: center;
}

.books {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 16px;
}

.book-row {
  position: relative;
  min-width: 0;
}

.book,
.chunk,
.note-card {
  position: relative;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 20px;
  background: var(--panel);
  color: inherit;
  text-align: left;
  box-shadow: none;
}

.book,
.chunk {
  padding: 17px;
}

.book {
  display: block;
  padding: 0;
  border-radius: 14px;
  background: transparent;
}

.book-cover {
  position: relative;
  display: block;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 0.68;
  border-radius: 9px 14px 14px 9px;
  background: hsl(calc(19 + var(--cover-hue)) 28% 76%);
  box-shadow: -3px 2px 0 rgba(255, 255, 255, 0.65), 0 13px 24px rgba(77, 53, 34, 0.18);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.book-cover::before {
  position: absolute;
  z-index: 2;
  inset: 0 auto 0 0;
  width: 8px;
  background: linear-gradient(90deg, rgba(57, 39, 25, 0.22), rgba(255, 255, 255, 0.16), transparent);
  content: "";
  pointer-events: none;
}

.book-cover img {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-cover-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 18px 13px 15px 17px;
  background:
    radial-gradient(circle at 80% 12%, rgba(255, 255, 255, 0.52), transparent 34%),
    linear-gradient(155deg, rgba(255, 255, 255, 0.28), transparent 54%);
  color: #fffaf2;
  text-shadow: 0 1px 12px rgba(62, 43, 28, 0.28);
}

.cover-title {
  font-family: Georgia, "Songti SC", serif;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.34;
}

.cover-author {
  font-size: 10px;
  letter-spacing: 0.08em;
  opacity: 0.88;
}

.book-info {
  display: block;
  padding: 13px 2px 0;
}

.book-progress-label {
  display: block;
  margin-top: 5px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
}

.book:hover .book-cover,
.book.active .book-cover {
  transform: translateY(-3px);
  box-shadow: -3px 2px 0 rgba(255, 255, 255, 0.7), 0 18px 30px rgba(77, 53, 34, 0.22);
}

.book:hover,
.chunk:hover,
.book.active,
.chunk.active,
.book-row.active .book {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.book-delete,
.book-rename {
  position: absolute;
  z-index: 4;
  top: 6px;
  border: 1px solid transparent;
  border-radius: 999px;
  width: 28px;
  height: 28px;
  padding: 0;
  background: rgba(44, 34, 27, 0.52);
  color: white;
  font-size: 17px;
  line-height: 1;
  opacity: 0;
  backdrop-filter: blur(8px);
  transition: opacity 160ms ease;
}

.book-delete {
  right: 6px;
}

.book-rename {
  right: 40px;
  font-size: 15px;
}

.book-row:hover .book-delete,
.book-row:hover .book-rename,
.book-row:focus-within .book-delete,
.book-row:focus-within .book-rename {
  opacity: 1;
}

.book-delete:hover,
.book-rename:hover {
  border-color: var(--accent-soft);
  color: var(--accent);
  background: var(--accent-soft);
}

.book-title,
.chunk-title {
  display: block;
  font-weight: 800;
}

.book-meta,
.chunk-meta {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.progress {
  overflow: hidden;
  height: 5px;
  margin-top: 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.08);
}

.progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.reader {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 760px) 300px;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 22px 28px;
  overflow: hidden;
}

.reader-head {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.text {
  overflow: auto;
  min-height: 0;
  padding: 10px 2px 96px;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-size: 22px;
  line-height: 1.9;
  white-space: pre-wrap;
}

.text mark {
  border-radius: 5px;
  background: var(--accent-soft);
  color: inherit;
  cursor: pointer;
}

.text mark.mine {
  background: rgba(205, 137, 105, 0.2);
}

.text mark.partner {
  background: rgba(116, 151, 132, 0.21);
}

.text mark.shared {
  background: linear-gradient(90deg, rgba(205, 137, 105, 0.22), rgba(116, 151, 132, 0.22));
}

.text mark.active {
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.shared-bookmark {
  display: inline-block;
  margin-left: 0.35em;
  color: var(--muted);
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 0.54em;
  font-weight: 800;
  letter-spacing: 0.02em;
  vertical-align: 0.12em;
}

.page-turner {
  display: none;
}

.empty {
  color: var(--muted);
  font-family: inherit;
}

.margins {
  overflow: auto;
  min-height: 0;
  padding-bottom: 96px;
}

.note-card {
  padding: 14px;
  margin-bottom: 12px;
}

.note-card.open {
  border-color: var(--accent-soft);
}

.note-card.active {
  border-color: var(--accent);
  background: var(--panel-strong);
}

.shared-line {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.inline-note {
  position: relative;
  display: block;
  margin: 14px 0 18px;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 16px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  white-space: normal;
}

.inline-note.mine-note,
.note-card.mine-note,
.spread-annotation-popover.mine-note {
  border-left-color: #c98266;
}

.inline-note.partner-note,
.note-card.partner-note,
.spread-annotation-popover.partner-note {
  border-left-color: #779789;
}

.inline-note.partner-note,
.note-card.partner-note {
  background: color-mix(in srgb, var(--panel-strong) 88%, rgba(116, 151, 132, 0.18));
}

.inline-note.mine-note,
.note-card.mine-note {
  background: color-mix(in srgb, var(--panel-strong) 90%, rgba(205, 137, 105, 0.15));
}

.note-delete {
  position: absolute;
  top: 14px;
  right: 16px;
  z-index: 2;
  border: 0;
  border-radius: 999px;
  padding: 7px 11px;
  color: #9b5d49;
  background: rgba(155, 93, 73, 0.09);
  font: inherit;
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.note-delete:active {
  transform: scale(0.96);
  background: rgba(155, 93, 73, 0.16);
}

.inline-note-kicker {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.note-quote {
  margin: 0 0 10px;
  padding-left: 10px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.note-body {
  margin: 0;
  line-height: 1.55;
}

.note-meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.thread {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.reply {
  margin-left: calc(var(--reply-depth, 0) * 10px);
  padding: 10px 12px;
  border-left: 3px solid transparent;
  border-radius: 12px;
  background: transparent;
}

.reply.other-author {
  background: rgba(0, 0, 0, 0.035);
}

.reply-body {
  margin: 0;
  line-height: 1.5;
}

.reply-children {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.reply-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: end;
}

.note-form,
.submitbar {
  position: fixed;
  right: 28px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.toast {
  position: fixed;
  z-index: 13;
  left: 50%;
  bottom: 92px;
  transform: translateX(-50%);
  max-width: min(420px, calc(100vw - 32px));
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 999px;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--text);
  box-shadow: 0 18px 50px rgba(36, 31, 24, 0.12);
  backdrop-filter: blur(20px);
  font-size: 15px;
  font-weight: 800;
}

.card-panel {
  position: fixed;
  z-index: 12;
  top: 28px;
  right: 28px;
  width: min(420px, calc(100vw - 56px));
  max-height: calc(100vh - 56px);
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 28px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 24px 80px rgba(36, 31, 24, 0.16);
  backdrop-filter: blur(24px);
}

.card-panel-head,
.card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-panel-head {
  margin-bottom: 14px;
}

.card-panel-head h2 {
  font-size: 22px;
}

.card-preview {
  display: grid;
  justify-items: center;
}

.ritual-card {
  position: relative;
  width: min(420px, 100%);
  max-width: 420px;
  min-height: 440px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  overflow: hidden;
  border-radius: 24px;
  padding: 28px;
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.76), transparent 28%),
    linear-gradient(145deg, #fbf4ed, #ece8df 58%, #dfe5e6);
  color: #28241f;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.ritual-card.card-compact {
  min-height: 360px;
}

.ritual-card.card-standard {
  min-height: 440px;
}

.ritual-card.card-tall {
  min-height: 540px;
}

.card-art {
  position: absolute;
  inset: 0;
  color: rgba(155, 115, 85, 0.75);
  pointer-events: none;
}

.card-art svg {
  width: 100%;
  height: 100%;
  display: block;
}

.card-content {
  position: relative;
  z-index: 1;
  min-height: 384px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 18px;
}

.card-compact .card-content {
  min-height: 304px;
}

.card-tall .card-content {
  min-height: 484px;
}

.ritual-card.echo,
.ritual-card.art-ripple {
  background:
    radial-gradient(circle at 76% 12%, rgba(255, 255, 255, 0.5), transparent 30%),
    linear-gradient(145deg, #f8f3ec, #eee9df 58%, #e6e5dc);
}

.ritual-card.art-ripple .card-art {
  color: rgba(116, 96, 78, 0.52);
}

.ritual-card.art-fold .card-art {
  color: rgba(88, 80, 72, 0.45);
}

.ritual-card.art-stardust .card-art {
  color: rgba(98, 86, 70, 0.62);
}

.ritual-card.finish {
  background:
    radial-gradient(circle at 20% 18%, rgba(217, 121, 92, 0.18), transparent 28%),
    linear-gradient(145deg, #fbf6ee, #eeece4 60%, #e4e8df);
}

.ritual-card.quiet {
  background:
    radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.76), transparent 32%),
    linear-gradient(145deg, #f8f5ef, #eeeae2 62%, #e8e6df);
}

.card-kicker {
  margin: 0;
  color: #7d7971;
  font-size: 15px;
  font-weight: 800;
}

.ritual-card h3 {
  margin: 0;
  font-size: 34px;
  line-height: 1.05;
  letter-spacing: 0;
}

.card-subtitle {
  margin: -8px 0 0;
  color: #868178;
  font-size: 14px;
}

.ritual-card blockquote {
  margin: clamp(22px, 7vh, 64px) 0 0;
  padding: 0;
  color: #34302b;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-size: 24px;
  line-height: 1.45;
}

.card-voices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.card-voices,
.ritual-card footer {
  margin-top: auto;
}

.card-voices.single {
  grid-template-columns: 1fr;
}

.card-voices section {
  min-width: 0;
  border-top: 1px solid rgba(40, 36, 31, 0.14);
  padding-top: 10px;
}

.card-voices span {
  color: #817b72;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.card-voices p,
.ritual-card footer {
  margin: 6px 0 0;
  color: #4b463f;
  font-size: 14px;
  line-height: 1.45;
}

.ritual-card footer {
  color: #817b72;
}

.card-actions {
  justify-content: flex-end;
  margin-top: 12px;
}

.note-form {
  left: max(28px, calc(320px + 320px + 56px));
  bottom: 92px;
  padding: 16px;
}

.quote-preview {
  max-height: 72px;
  overflow: auto;
  margin-bottom: 12px;
  padding-left: 10px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.submitbar.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  visibility: visible;
  pointer-events: auto;
}

.tools-toggle {
  position: fixed;
  z-index: 10;
  right: 28px;
  bottom: 24px;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  background: rgba(255, 250, 242, 0.88);
  color: var(--accent);
  box-shadow: 0 14px 38px rgba(74, 51, 33, 0.17);
  backdrop-filter: blur(18px);
  transition: opacity 180ms ease, transform 220ms ease;
}

.tools-toggle.is-hidden {
  opacity: 0;
  transform: scale(0.72);
  visibility: hidden;
  pointer-events: none;
}

.tools-glyph {
  font-family: Georgia, serif;
  font-size: 25px;
  line-height: 1;
  transform: rotate(-8deg);
}

.tools-count {
  position: absolute;
  top: -5px;
  right: -4px;
  min-width: 20px;
  height: 20px;
  border: 2px solid #fffaf2;
  border-radius: 999px;
  padding: 0 5px;
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 800;
  line-height: 16px;
}

.partner-inbox-toggle {
  position: relative;
  display: none;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  border: 1px solid color-mix(in srgb, var(--partner) 34%, white);
  border-radius: 999px;
  padding: 0 12px;
  background: color-mix(in srgb, var(--partner) 9%, var(--theme-paper, var(--panel-strong)));
  color: var(--partner, var(--accent));
  box-shadow: none;
  font-weight: 850;
}

body.has-chunk .partner-inbox-toggle {
  display: flex;
}

.partner-inbox-toggle.has-new {
  animation: partner-reply-arrived 620ms ease both;
}

.partner-inbox-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.partner-inbox-count {
  min-width: 20px;
  height: 20px;
  border-radius: 999px;
  padding: 0 5px;
  background: var(--partner, var(--accent));
  color: white;
  font-size: 11px;
  line-height: 20px;
  text-align: center;
}

.partner-inbox {
  position: fixed;
  z-index: 32;
  top: max(20px, env(safe-area-inset-top));
  right: 20px;
  bottom: max(20px, env(safe-area-inset-bottom));
  width: min(480px, calc(100vw - 40px));
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 20px;
  background: color-mix(in srgb, var(--theme-paper, var(--panel-strong)) 96%, transparent);
  color: var(--text);
  box-shadow: 0 30px 90px rgba(35, 27, 22, 0.28);
  backdrop-filter: blur(24px);
}

.partner-inbox[hidden] {
  display: none;
}

.partner-inbox-head {
  position: sticky;
  z-index: 2;
  top: -20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin: -20px -20px 16px;
  border-bottom: 1px solid var(--line);
  padding: 20px;
  background: color-mix(in srgb, var(--theme-paper, var(--panel-strong)) 94%, transparent);
  backdrop-filter: blur(20px);
}

.partner-inbox-head h2 {
  margin-top: 3px;
  font-size: 24px;
}

.partner-inbox-head small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.partner-inbox-list {
  display: grid;
  gap: 13px;
}

.partner-inbox-card {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--partner, var(--accent));
  border-radius: 18px;
  padding: 15px;
  background: color-mix(in srgb, var(--theme-paper-2, var(--panel)) 88%, transparent);
}

.partner-inbox-card > header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--partner, var(--accent));
  font-size: 12px;
  font-weight: 850;
}

.partner-inbox-location,
.partner-inbox-card blockquote,
.partner-inbox-parent p,
.partner-inbox-message p,
.partner-inbox-empty p {
  margin: 0;
}

.partner-inbox-location {
  color: var(--muted);
  font-size: 11px;
}

.partner-inbox-card blockquote {
  max-height: 5.2em;
  overflow: auto;
  border-left: 3px solid var(--accent-soft);
  padding: 9px 11px;
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  color: var(--muted);
  font-family: "Songti SC", "STSong", Georgia, serif;
  font-size: 13px;
  line-height: 1.55;
}

.partner-inbox-parent,
.partner-inbox-message {
  border-radius: 13px;
  padding: 11px 12px;
}

.partner-inbox-parent {
  background: color-mix(in srgb, var(--mine) 12%, var(--theme-paper, white));
}

.partner-inbox-message {
  background: color-mix(in srgb, var(--partner) 13%, var(--theme-paper, white));
}

.partner-inbox-parent small,
.partner-inbox-message small {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
}

.partner-inbox-parent p,
.partner-inbox-message p {
  line-height: 1.55;
}

.partner-inbox-reply-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 8px;
}

.partner-inbox-reply-form textarea {
  min-height: 64px;
}

.partner-inbox-more {
  width: 100%;
  min-height: 46px;
  border: 1px solid color-mix(in srgb, var(--partner) 28%, var(--line));
  border-radius: 15px;
  background: color-mix(in srgb, var(--partner) 8%, var(--theme-paper, white));
  color: var(--partner, var(--accent));
  font-weight: 850;
}

.partner-inbox-empty {
  display: grid;
  place-items: center;
  min-height: 240px;
  color: var(--muted);
  text-align: center;
}

.partner-inbox-empty > span {
  font-size: 36px;
}

.partner-inbox-empty strong {
  color: var(--text);
}

@keyframes partner-reply-arrived {
  0%, 100% { transform: translateY(0); }
  45% { transform: translateY(-5px); }
}

.tools-close {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border: 0;
  border-radius: 50%;
  padding: 0;
  background: rgba(111, 87, 62, 0.08);
  color: var(--muted);
  font-size: 22px;
}

textarea {
  width: 100%;
  resize: vertical;
  border: 0;
  border-radius: 16px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.86);
  color: inherit;
  outline: none;
}

.form-actions,
.submitbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.submit-actions {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.form-actions {
  margin-top: 12px;
}

.submitbar {
  left: max(28px, calc(320px + 320px + 56px));
  bottom: 24px;
  min-height: 52px;
  padding: 10px 12px 10px 18px;
  color: var(--muted);
  z-index: 10;
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  visibility: hidden;
  pointer-events: none;
  transition: opacity 220ms ease, transform 260ms ease, visibility 220ms ease;
}

.primary-button,
.secondary-button,
.icon-button {
  border: 0;
  border-radius: 999px;
  min-height: 40px;
  padding: 0 16px;
}

.primary-button {
  background: linear-gradient(135deg, #c68970, #ad6d55);
  color: white;
  font-weight: 800;
}

.secondary-button,
.icon-button {
  background: rgba(111, 87, 62, 0.08);
  color: var(--text);
}

button:disabled {
  cursor: default;
  opacity: 0.45;
}

.icon-button {
  width: 42px;
  padding: 0;
  font-size: 20px;
}

/* Tablet: use a calm two-pane flow instead of squeezing three desktop columns. */
@media (min-width: 981px) and (max-width: 1366px) {
  body {
    min-height: 100svh;
  }

  .app {
    grid-template-columns: 280px minmax(0, 1fr);
    min-height: 100svh;
  }

  .sidebar,
  .chapters,
  .reader {
    min-height: 100svh;
    padding: max(28px, env(safe-area-inset-top)) 24px max(96px, env(safe-area-inset-bottom));
  }

  .chapters,
  .reader {
    display: none;
  }

  .sidebar {
    grid-column: 1 / -1;
    border-right: 0;
  }

  .sidebar .topbar {
    max-width: 1120px;
    margin-inline: auto;
  }

  .sidebar .books {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 1120px;
    margin-inline: auto;
    gap: 34px 26px;
  }

  body.has-book:not(.has-chunk) .sidebar {
    display: none;
  }

  body.has-book:not(.has-chunk) .chapters {
    display: block;
    grid-column: 1 / -1;
    width: min(920px, 100%);
    margin-inline: auto;
    border-right: 0;
  }

  body.has-chunk .sidebar {
    display: none;
  }

  body.has-chunk .chapters {
    display: block;
    grid-column: 1;
    border-right: 1px solid var(--line);
  }

  body.has-book:not(.has-chunk) .chunk-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  body.has-book:not(.has-chunk) .panel-head h2 {
    overflow-wrap: anywhere;
    font-size: clamp(27px, 3.4vw, 38px);
    line-height: 1.2;
  }

  body.has-chunk .reader {
    display: grid;
    grid-column: 2;
  }

  .mobile-back {
    display: inline-flex;
    margin-bottom: 16px;
  }

  .panel-head,
  .reader-head {
    align-items: flex-start;
  }

  .reader {
    grid-template-columns: minmax(0, 760px);
    grid-template-rows: auto auto auto;
    align-content: start;
    justify-content: center;
    overflow: auto;
    gap: 22px;
  }

  .reader-head {
    grid-column: 1;
    position: sticky;
    top: -28px;
    z-index: 4;
    padding: 14px 0;
    background: color-mix(in srgb, var(--bg) 90%, transparent);
    backdrop-filter: blur(18px);
  }

  .text,
  .margins {
    overflow: visible;
  }

  .text {
    padding-bottom: 150px;
    font-size: 21px;
  }

  .book-delete,
  .book-rename {
    opacity: 0.78;
  }

  .note-form,
  .submitbar {
    left: 304px;
    right: 24px;
  }

  .tools-toggle {
    right: max(24px, env(safe-area-inset-right));
    bottom: max(24px, env(safe-area-inset-bottom));
  }

  .card-panel {
    top: 24px;
    right: 24px;
    max-height: calc(100svh - 48px);
  }
}

/* Landscape tablets open the chapter as a two-page book spread. */
@media (min-width: 981px) and (max-width: 1366px) and (orientation: landscape) {
  .app {
    grid-template-columns: 1fr;
  }

  body.has-chunk .chapters {
    display: none;
  }

  body.has-chunk .reader {
    grid-column: 1;
  }

  .reader {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    padding: max(20px, env(safe-area-inset-top)) clamp(30px, 4vw, 58px) max(82px, env(safe-area-inset-bottom));
    overflow: hidden;
  }

  .reader-head {
    grid-column: 1;
    top: -20px;
    padding-block: 8px 12px;
  }

  .text {
    position: relative;
    grid-column: 1;
    height: calc(100svh - 168px);
    min-height: 500px;
    overflow: hidden;
    columns: auto;
    padding: 0;
    border: 1px solid rgba(111, 87, 62, 0.1);
    border-radius: 18px 18px 10px 10px;
    background: rgba(255, 252, 246, 0.84);
    box-shadow: 0 24px 60px rgba(75, 53, 34, 0.13), inset 0 0 50px rgba(122, 94, 67, 0.035);
    perspective: 1800px;
  }

  .book-spread {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    height: 100%;
  }

  .book-page {
    position: relative;
    min-width: 0;
    overflow: hidden;
    padding: clamp(28px, 3.5vh, 38px) clamp(46px, 4.6vw, 64px) 44px;
    background: rgba(255, 252, 246, 0.74);
  }

  .book-page-left {
    border-radius: 17px 3px 3px 9px;
    box-shadow: inset -22px 0 30px -28px rgba(66, 45, 29, 0.38);
  }

  .book-page-right {
    border-left: 1px solid rgba(94, 70, 48, 0.11);
    border-radius: 3px 17px 9px 3px;
    box-shadow: inset 22px 0 30px -28px rgba(66, 45, 29, 0.38);
  }

  .book-page-content {
    height: 100%;
    overflow: hidden;
    color: var(--text);
    font-family: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
    font-size: clamp(18px, 1.45vw, 20px);
    font-weight: 400;
    line-height: 1.86;
    letter-spacing: 0;
    word-spacing: 0;
    text-align: start;
    word-break: normal;
    overflow-wrap: break-word;
    line-break: strict;
    white-space: pre-wrap;
  }

  .leaf-number {
    position: absolute;
    bottom: 18px;
    color: var(--muted);
    font-family: Georgia, serif;
    font-size: 11px;
  }

  .book-page-left .leaf-number {
    left: 28px;
  }

  .book-page-right .leaf-number {
    right: 28px;
  }

  .page-empty {
    margin: 42% 0 0;
    color: var(--muted);
    font-size: 14px;
    text-align: center;
  }

  .text.turning-next::after,
  .text.turning-prev::after {
    position: absolute;
    z-index: 12;
    top: 0;
    bottom: 0;
    width: 50%;
    border-radius: 10px;
    background:
      linear-gradient(90deg, rgba(77, 55, 37, 0.14), transparent 20%, rgba(255, 252, 246, 0.96) 72%),
      #fffaf2;
    box-shadow: 0 8px 35px rgba(65, 45, 29, 0.2);
    content: "";
    pointer-events: none;
    backface-visibility: hidden;
  }

  .text.turning-next::after {
    right: 0;
    transform-origin: left center;
    animation: turn-page-next 620ms cubic-bezier(0.58, 0.05, 0.22, 0.99) both;
  }

  .text.turning-prev::after {
    left: 0;
    transform-origin: right center;
    animation: turn-page-prev 620ms cubic-bezier(0.58, 0.05, 0.22, 0.99) both;
  }

  .page-turner.active {
    position: fixed;
    z-index: 11;
    top: 50%;
    left: 18px;
    right: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translateY(-50%);
    pointer-events: none;
  }

  .page-turn-button {
    width: 46px;
    height: 64px;
    border: 1px solid rgba(255, 255, 255, 0.78);
    border-radius: 999px;
    background: rgba(255, 250, 242, 0.82);
    color: var(--accent);
    box-shadow: 0 12px 32px rgba(70, 49, 32, 0.14);
    backdrop-filter: blur(16px);
    font-family: Georgia, serif;
    font-size: 38px;
    line-height: 1;
    pointer-events: auto;
  }

  .page-turn-button:disabled {
    opacity: 0.2;
  }

  .page-number {
    position: fixed;
    left: 50%;
    bottom: calc(76px + env(safe-area-inset-bottom));
    transform: translateX(-50%);
    border-radius: 999px;
    padding: 6px 11px;
    background: rgba(255, 250, 242, 0.72);
    color: var(--muted);
    font-size: 12px;
    font-weight: 750;
    pointer-events: none;
  }

  .margins {
    display: none;
  }

  .text,
  .text p {
    orphans: 3;
    widows: 3;
  }

  .note-form,
  .submitbar {
    left: clamp(30px, 4vw, 58px);
    right: clamp(30px, 4vw, 58px);
  }

  .tools-toggle {
    right: 42px;
    bottom: max(24px, env(safe-area-inset-bottom));
  }
}

@keyframes turn-page-next {
  0% { transform: rotateY(0deg); filter: brightness(1); }
  45% { filter: brightness(0.9); }
  100% { transform: rotateY(-178deg); filter: brightness(0.76); }
}

@keyframes turn-page-prev {
  0% { transform: rotateY(0deg); filter: brightness(1); }
  45% { filter: brightness(0.9); }
  100% { transform: rotateY(178deg); filter: brightness(0.76); }
}

/* iPad Air 11-inch landscape (1180 × 820 CSS viewport). */
@media (min-width: 1120px) and (max-width: 1220px) and (min-height: 740px) and (max-height: 880px) and (orientation: landscape) {
  .reader {
    padding-inline: 42px;
  }

  .reader-head {
    min-height: 82px;
  }

  .text {
    height: calc(100svh - 170px);
  }

  .book-page {
    padding: 28px 54px 44px;
  }

  .book-page-content {
    font-size: 18px;
    line-height: 1.86;
  }

  .note-form,
  .submitbar {
    left: 42px;
    right: 42px;
  }
}

.spread-annotation-popover {
  position: fixed;
  z-index: 30;
  width: min(360px, calc(100vw - 36px));
  max-height: min(440px, calc(100svh - 36px));
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-left: 4px solid var(--accent);
  border-radius: 20px;
  padding: 20px 22px;
  background: rgba(255, 250, 242, 0.96);
  color: var(--text);
  box-shadow: 0 24px 70px rgba(61, 43, 30, 0.22);
  backdrop-filter: blur(22px);
}

.spread-annotation-popover[hidden] {
  display: none;
}

.spread-note-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 20px;
}

.spread-note-quote {
  margin: 12px 26px 14px 0;
  padding-left: 12px;
  border-left: 2px solid var(--accent-soft);
  color: var(--muted);
  font-family: Georgia, "Songti SC", serif;
  font-size: 14px;
  line-height: 1.6;
}

.spread-note-replies {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  body {
    min-height: 100svh;
  }

  .app {
    grid-template-columns: 1fr;
  }

  .chapters,
  .reader {
    display: none;
  }

  body.has-book .sidebar,
  body.has-chunk .sidebar,
  body.has-chunk .chapters {
    display: none;
  }

  body.has-book:not(.has-chunk) .chapters {
    display: block;
    min-height: 100svh;
  }

  body.has-chunk .reader {
    display: grid;
    min-height: 100svh;
  }

  .mobile-back {
    display: inline-flex;
    margin-bottom: 18px;
  }

  .sidebar,
  .chapters {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .sidebar,
  .chapters,
  .reader {
    padding: max(24px, env(safe-area-inset-top)) 20px calc(120px + env(safe-area-inset-bottom));
  }

  .topbar,
  .panel-head,
  .reader-head {
    align-items: flex-start;
    margin-bottom: 16px;
  }

  .panel-head,
  .reader-head {
    display: block;
  }

  .topbar {
    padding-top: 8px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 25px;
  }

  .books,
  .chunk-list {
    grid-template-columns: 1fr;
  }

  .books {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 18px;
  }

  .book-delete,
  .book-rename {
    opacity: 0.82;
  }

  .book-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .reader {
    grid-template-columns: 1fr;
    overflow: visible;
    gap: 16px;
  }

  .reader-head {
    position: sticky;
    top: 0;
    z-index: 4;
    margin: -8px -4px 0;
    padding: 12px 4px 16px;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: blur(16px);
  }

  .reader-actions {
    justify-content: flex-start;
    margin-top: 14px;
  }

  .reader-actions .secondary-button {
    min-height: 36px;
    padding: 0 12px;
  }

  .text {
    overflow: visible;
    padding: 8px 2px 160px;
    font-size: 19px;
    line-height: 1.95;
  }

  .note-form,
  .submitbar {
    left: 16px;
    right: 16px;
  }

  .card-panel {
    top: 16px;
    left: 16px;
    right: 16px;
    width: auto;
    max-height: calc(100vh - 128px);
  }

  .ritual-card {
    width: min(420px, 100%);
    min-height: 460px;
    padding: 24px;
  }

  .ritual-card h3 {
    font-size: 30px;
  }

  .ritual-card blockquote {
    font-size: 22px;
  }

  .submitbar {
    align-items: stretch;
    flex-direction: column;
    z-index: 9;
    padding: 12px 14px max(12px, env(safe-area-inset-bottom));
  }

  .toast {
    bottom: calc(124px + env(safe-area-inset-bottom));
  }

  .submit-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .submit-actions button {
    min-width: 0;
    padding-inline: 12px;
    font-size: 13px;
  }

  .margins {
    overflow: visible;
  }

  .inline-note {
    margin: 12px 0 16px;
    font-size: 15px;
  }

  .reply-form {
    grid-template-columns: 1fr;
  }

  .library-note-controls {
    grid-template-columns: 1fr;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11100f;
    --panel: rgba(255, 255, 255, 0.07);
    --panel-strong: rgba(255, 255, 255, 0.12);
    --text: #f3eee8;
    --muted: #aaa29a;
    --line: rgba(255, 255, 255, 0.1);
    --accent-soft: rgba(217, 121, 92, 0.22);
    --blue-soft: rgba(132, 169, 207, 0.2);
    --shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
  }

  textarea {
    background: rgba(255, 255, 255, 0.1);
  }

  .note-form,
  .submitbar,
  .card-panel,
  .toast {
    border-color: rgba(255, 255, 255, 0.14);
    background: rgba(28, 27, 26, 0.78);
  }

  .reply {
    background: transparent;
  }

  .reply.other-author {
    background: rgba(255, 255, 255, 0.07);
  }
}

/* --------------------------------------------------------------------------
   V8 one-tap theme system. Theme CSS may change materials and component
   language, but it deliberately does not own layout coordinates or paging.
   -------------------------------------------------------------------------- */

html[data-theme="blackcat"] {
  color-scheme: dark;
  --bg: #16151c;
  --panel: rgba(37, 35, 43, 0.78);
  --panel-strong: #201f27;
  --text: #f4eee8;
  --muted: #aaa2ad;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #caa8ff;
  --accent-soft: rgba(181, 140, 255, 0.17);
  --mine: #b58cff;
  --partner: #86d8ff;
  --theme-bg-a: #211f28;
  --theme-bg-b: #121117;
  --theme-paper: #25232b;
  --theme-paper-2: #201f27;
  --primary-gradient: linear-gradient(135deg, #b58cff, #725d9c);
  --theme-shadow: 0 28px 80px rgba(0, 0, 0, 0.36);
}

html[data-theme="rabbit"] {
  color-scheme: light;
  --bg: #f3e9dc;
  --panel: rgba(255, 250, 241, 0.76);
  --panel-strong: #fffaf1;
  --text: #4e3d39;
  --muted: #9b8077;
  --line: #ead7c7;
  --accent: #d8988d;
  --accent-soft: rgba(216, 152, 141, 0.16);
  --mine: #ff9a62;
  --partner: #89b96b;
  --theme-bg-a: #f8f0e5;
  --theme-bg-b: #ead7c5;
  --theme-paper: #fffaf1;
  --theme-paper-2: #fbf2e5;
  --primary-gradient: linear-gradient(135deg, #e0a093, #bd796f);
  --theme-shadow: 0 28px 70px rgba(113, 78, 56, 0.15);
}

html[data-theme="duo"] {
  color-scheme: light;
  --bg: #e8e0eb;
  --panel: rgba(255, 249, 243, 0.77);
  --panel-strong: #fff9f3;
  --text: #493f4c;
  --muted: #8d7c8e;
  --line: #e3d3df;
  --accent: #9f709d;
  --accent-soft: rgba(159, 112, 157, 0.16);
  --mine: #7767c7;
  --partner: #f08ba4;
  --theme-bg-a: #eee7f0;
  --theme-bg-b: #d9cadf;
  --theme-paper: #fff9f3;
  --theme-paper-2: #f8f0ef;
  --primary-gradient: linear-gradient(135deg, #7767c7, #f08ba4);
  --theme-shadow: 0 30px 74px rgba(82, 51, 84, 0.18);
}

html[data-theme="forest"] {
  color-scheme: light;
  --bg: #dfe5d7;
  --panel: rgba(247, 244, 233, 0.78);
  --panel-strong: #f7f4e9;
  --text: #344338;
  --muted: #718071;
  --line: #d4dac9;
  --accent: #6e8f6a;
  --accent-soft: rgba(110, 143, 106, 0.16);
  --mine: #e3b23c;
  --partner: #5e8e59;
  --theme-bg-a: #e9eddf;
  --theme-bg-b: #c8d3bd;
  --theme-paper: #f7f4e9;
  --theme-paper-2: #f1efe2;
  --primary-gradient: linear-gradient(135deg, #8daa80, #496b4c);
  --theme-shadow: 0 28px 70px rgba(46, 65, 44, 0.18);
}

html[data-theme="berry"] {
  color-scheme: light;
  --bg: #f8dfe5;
  --panel: rgba(255, 250, 248, 0.8);
  --panel-strong: #fffaf8;
  --text: #573745;
  --muted: #a16f80;
  --line: #f0cbd5;
  --accent: #e25e83;
  --accent-soft: rgba(226, 94, 131, 0.16);
  --mine: #f55071;
  --partner: #596fda;
  --theme-bg-a: #fff0f3;
  --theme-bg-b: #efc7d5;
  --theme-paper: #fffaf8;
  --theme-paper-2: #fff2f0;
  --primary-gradient: linear-gradient(135deg, #ff809c, #d94370);
  --theme-shadow: 0 25px 65px rgba(174, 76, 112, 0.18);
}

html[data-theme="ocean"] {
  color-scheme: light;
  --bg: #dce8e2;
  --panel: rgba(246, 247, 241, 0.8);
  --panel-strong: #f6f7f1;
  --text: #344843;
  --muted: #788b85;
  --line: #cfddd6;
  --accent: #668e83;
  --accent-soft: rgba(102, 142, 131, 0.16);
  --mine: #c96d58;
  --partner: #4f8296;
  --theme-bg-a: #edf3ee;
  --theme-bg-b: #cadbd4;
  --theme-paper: #f6f7f1;
  --theme-paper-2: #edf2ec;
  --primary-gradient: linear-gradient(135deg, #88aba0, #557d72);
  --theme-shadow: 0 26px 65px rgba(52, 82, 72, 0.15);
}

html[data-theme="bookshop"] {
  color-scheme: light;
  --bg: #bba78c;
  --panel: rgba(238, 225, 197, 0.84);
  --panel-strong: #eee1c5;
  --text: #34281d;
  --muted: #786552;
  --line: #cdbb99;
  --accent: #8d3f32;
  --accent-soft: rgba(141, 63, 50, 0.15);
  --mine: #9e493d;
  --partner: #3f7088;
  --theme-bg-a: #d7c7aa;
  --theme-bg-b: #9f886d;
  --theme-paper: #eee1c5;
  --theme-paper-2: #e8d8b8;
  --primary-gradient: linear-gradient(135deg, #a85443, #773126);
  --theme-shadow: 0 28px 75px rgba(55, 35, 21, 0.28);
}

html[data-theme] body {
  background:
    radial-gradient(circle at 8% 3%, color-mix(in srgb, var(--theme-paper) 72%, transparent), transparent 24rem),
    linear-gradient(135deg, var(--theme-bg-a), var(--bg) 48%, var(--theme-bg-b));
  transition: background 320ms ease, color 220ms ease;
}

html[data-theme] .sidebar,
html[data-theme] .chapters {
  background: color-mix(in srgb, var(--theme-paper) 62%, transparent);
}

html[data-theme] .reader-head {
  background-color: color-mix(in srgb, var(--bg) 88%, transparent);
}

html[data-theme] .book-page,
html[data-theme] .text {
  background-color: color-mix(in srgb, var(--theme-paper) 90%, transparent);
}

html[data-theme] .book-page-right {
  background-color: color-mix(in srgb, var(--theme-paper-2) 92%, transparent);
}

html[data-theme] .primary-button {
  background: var(--primary-gradient);
}

html[data-theme] .secondary-button,
html[data-theme] .icon-button,
html[data-theme] .tools-close {
  background: color-mix(in srgb, var(--accent) 11%, transparent);
  color: var(--text);
}

html[data-theme] .note-form,
html[data-theme] .submitbar,
html[data-theme] .card-panel,
html[data-theme] .toast {
  border-color: color-mix(in srgb, var(--theme-paper) 74%, white);
  background: color-mix(in srgb, var(--theme-paper) 88%, transparent);
  box-shadow: var(--theme-shadow);
}

html[data-theme] textarea,
html[data-theme] .library-note-search,
html[data-theme] .library-note-book-filter {
  background: color-mix(in srgb, var(--theme-paper) 90%, white);
}

html[data-theme] .tools-toggle {
  border-color: color-mix(in srgb, var(--theme-paper) 76%, white);
  background: color-mix(in srgb, var(--theme-paper) 90%, transparent);
  color: var(--accent);
  box-shadow: var(--theme-shadow);
}

html[data-theme] .text mark.mine {
  background: color-mix(in srgb, var(--mine) 32%, transparent);
  box-shadow: inset 0 -2px var(--mine);
}

html[data-theme] .text mark.partner {
  background: color-mix(in srgb, var(--partner) 30%, transparent);
  box-shadow: inset 0 -2px var(--partner);
}

html[data-theme] .text mark.shared {
  background: linear-gradient(90deg, color-mix(in srgb, var(--mine) 30%, transparent), color-mix(in srgb, var(--partner) 30%, transparent));
  box-shadow: inset 0 -2px color-mix(in srgb, var(--accent) 72%, transparent);
}

html[data-theme] .mine-note,
html[data-theme] .passage-voice.my-voice {
  border-left-color: var(--mine);
}

html[data-theme] .inline-note.mine-note,
html[data-theme] .note-card.mine-note {
  background: color-mix(in srgb, var(--theme-paper) 86%, var(--mine) 14%);
}

html[data-theme] .partner-note,
html[data-theme] .passage-voice.partner-voice {
  border-left-color: var(--partner);
}

html[data-theme] .inline-note.partner-note,
html[data-theme] .note-card.partner-note {
  background: color-mix(in srgb, var(--theme-paper) 86%, var(--partner) 14%);
}

html[data-theme] .passage-voice.my-voice {
  background: color-mix(in srgb, var(--mine) 13%, var(--theme-paper));
}

html[data-theme] .passage-voice.partner-voice {
  background: color-mix(in srgb, var(--partner) 13%, var(--theme-paper));
}

html[data-theme] .passage-speaker {
  color: var(--mine);
}

html[data-theme] .partner-voice .passage-speaker {
  color: var(--partner);
}

html[data-theme] .annotation-home-entry {
  border-color: var(--line);
  background: linear-gradient(135deg, color-mix(in srgb, var(--theme-paper) 92%, transparent), color-mix(in srgb, var(--accent) 9%, transparent));
}

html[data-theme] .library-notes-head {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

html[data-theme] .library-note-book,
html[data-theme] .library-annotation-card {
  background: color-mix(in srgb, var(--theme-paper) 82%, transparent);
}

html[data-theme] .spread-annotation-popover {
  border-color: color-mix(in srgb, var(--theme-paper) 70%, white);
  background: color-mix(in srgb, var(--theme-paper) 96%, transparent);
  color: var(--text);
  box-shadow: var(--theme-shadow);
}

/* Midnight black cat: sharp night letters, star-index annotation room. */
html[data-theme="blackcat"] body::before { opacity: 0.5; }
html[data-theme="blackcat"] .annotation-home-entry { border-left: 5px solid var(--accent); border-radius: 3px 18px 18px 3px; }
html[data-theme="blackcat"] .annotation-home-icon { border-radius: 45% 55% 40% 60%; }
html[data-theme="blackcat"] .inline-note,
html[data-theme="blackcat"] .note-card,
html[data-theme="blackcat"] .spread-annotation-popover { border-radius: 4px 18px 18px 4px; background: #18171e; }
html[data-theme="blackcat"] .spread-annotation-popover::before { content: "CAT'S SECRET"; display: block; margin: 0 42px 12px 0; color: var(--accent); font-size: 9px; font-weight: 900; letter-spacing: 0.18em; }
html[data-theme="blackcat"] .library-notes-list { position: relative; padding-left: 24px; }
html[data-theme="blackcat"] .library-notes-list::before { position: absolute; top: 5px; bottom: 5px; left: 7px; width: 1px; background: linear-gradient(var(--mine), var(--partner)); content: ""; }
html[data-theme="blackcat"] .library-note-book { border-left: 4px solid var(--accent); border-radius: 3px 18px 18px 3px; }
html[data-theme="blackcat"] .library-note-mark { border-radius: 42% 58% 46% 54%; background: linear-gradient(145deg, #b58cff, #4c4368); }
html[data-theme="blackcat"] .submitbar { border-left: 5px solid var(--accent); border-radius: 8px 28px 28px 8px; }
html[data-theme="blackcat"] .tools-toggle { background: linear-gradient(145deg, #bea1f4, #725d9c); color: #17131d; }
html[data-theme="blackcat"] .text mark.mine { border-radius: 0; background: linear-gradient(transparent 70%, color-mix(in srgb, var(--mine) 38%, transparent) 70%); }
html[data-theme="blackcat"] .text mark.partner { border-radius: 0; background: linear-gradient(transparent 70%, color-mix(in srgb, var(--partner) 35%, transparent) 70%); }

/* Cream rabbit: cloud-soft stationery, stitches and rounded albums. */
html[data-theme="rabbit"] .annotation-home-entry,
html[data-theme="rabbit"] .library-note-book,
html[data-theme="rabbit"] .library-annotation-card,
html[data-theme="rabbit"] .inline-note,
html[data-theme="rabbit"] .note-card,
html[data-theme="rabbit"] .spread-annotation-popover { border: 2px dashed #dec1b5; border-radius: 30px; }
html[data-theme="rabbit"] .library-note-mark { border-radius: 50%; background: linear-gradient(145deg, #efc7b9, #d98e80); }
html[data-theme="rabbit"] .library-book-annotations { grid-template-columns: repeat(2, minmax(0, 1fr)); }
html[data-theme="rabbit"] .spread-annotation-popover::before { content: "♡ 奶油便签"; display: inline-block; margin-bottom: 10px; padding: 5px 11px; border-radius: 999px; color: #9e6966; background: #f5d8d0; font-size: 10px; font-weight: 850; }
html[data-theme="rabbit"] .submitbar { border: 2px dashed #dec1b5; border-radius: 32px; }
html[data-theme="rabbit"] .tools-toggle::before { position: absolute; top: -14px; width: 24px; height: 24px; border: 6px solid #efd4cd; border-bottom: 0; border-radius: 50% 50% 0 0; content: ""; }
html[data-theme="rabbit"] .text mark { padding-inline: 0.18em; border-radius: 999px; }
html[data-theme="rabbit"] .text mark.mine { border: 2px dotted color-mix(in srgb, var(--mine) 65%, transparent); box-shadow: none; }
html[data-theme="rabbit"] .text mark.partner { border: 2px dotted color-mix(in srgb, var(--partner) 65%, transparent); box-shadow: none; }

/* Cat + rabbit: two identity rails on neutral shared paper. */
html[data-theme="duo"] .annotation-home-entry { border-left: 5px solid var(--mine); border-right: 5px solid var(--partner); }
html[data-theme="duo"] .inline-note,
html[data-theme="duo"] .note-card,
html[data-theme="duo"] .spread-annotation-popover,
html[data-theme="duo"] .library-annotation-card { border-left: 5px solid var(--mine); border-right: 5px solid var(--partner); border-radius: 26px 8px 26px 8px; background: var(--theme-paper); }
html[data-theme="duo"] .library-note-mark { background: linear-gradient(135deg, var(--mine) 0 50%, var(--partner) 50%); }
html[data-theme="duo"] .passage-voices { grid-template-columns: 1fr 1fr; }
html[data-theme="duo"] .passage-voice { margin: 0; border-radius: 14px 4px 14px 4px; }
html[data-theme="duo"] .submitbar { border-left: 5px solid var(--mine); border-right: 5px solid var(--partner); background: var(--theme-paper); }
html[data-theme="duo"] .tools-toggle { background: linear-gradient(135deg, var(--mine) 0 50%, var(--partner) 50%); color: white; }
html[data-theme="duo"] .text mark.mine { border-radius: 8px 2px 8px 2px; box-shadow: inset 3px 0 var(--mine); }
html[data-theme="duo"] .text mark.partner { border-radius: 2px 8px 2px 8px; box-shadow: inset -3px 0 var(--partner); }

/* Forest post office: pressed-leaf highlights and postcard notes. */
html[data-theme="forest"] .annotation-home-entry,
html[data-theme="forest"] .library-note-book,
html[data-theme="forest"] .library-annotation-card,
html[data-theme="forest"] .inline-note,
html[data-theme="forest"] .note-card,
html[data-theme="forest"] .spread-annotation-popover { border-radius: 2px; box-shadow: 7px 8px 0 rgba(72, 98, 67, 0.11); }
html[data-theme="forest"] .library-note-book:nth-child(even) { transform: rotate(0.35deg); }
html[data-theme="forest"] .library-note-mark { border-radius: 50% 6px 50% 6px; background: linear-gradient(145deg, #91ad82, #547a55); }
html[data-theme="forest"] .spread-annotation-popover::before { content: "LEAF POST · 21"; float: right; width: 64px; margin: 0 0 12px 14px; border: 3px double var(--accent); padding: 8px 5px; color: var(--accent); font-size: 8px; text-align: center; transform: rotate(2deg); }
html[data-theme="forest"] .submitbar { border-radius: 2px; box-shadow: 7px 7px 0 rgba(72, 98, 67, 0.12); }
html[data-theme="forest"] .text mark.mine { border-radius: 50% 8px 50% 8px; background: linear-gradient(165deg, transparent 15%, color-mix(in srgb, var(--mine) 44%, transparent) 16% 82%, transparent 83%); box-shadow: none; }
html[data-theme="forest"] .text mark.partner { border-radius: 8px 50% 8px 50%; background: linear-gradient(165deg, transparent 15%, color-mix(in srgb, var(--partner) 42%, transparent) 16% 82%, transparent 83%); box-shadow: none; }

/* Strawberry scrapbook: milk-paper cards, tape and offset stickers. */
html[data-theme="berry"] .annotation-home-entry,
html[data-theme="berry"] .library-note-book,
html[data-theme="berry"] .library-annotation-card,
html[data-theme="berry"] .inline-note,
html[data-theme="berry"] .note-card,
html[data-theme="berry"] .spread-annotation-popover { border: 3px solid #fff; border-radius: 20px 6px 20px 6px; box-shadow: 6px 7px 0 rgba(219, 93, 127, 0.13); }
html[data-theme="berry"] .library-note-book:nth-child(even) { transform: rotate(0.25deg); }
html[data-theme="berry"] .library-note-mark { border: 3px solid #fff; border-radius: 10px 4px 10px 4px; background: linear-gradient(145deg, #f67392, #cf456b); box-shadow: 5px 6px 0 #f2ced8; }
html[data-theme="berry"] .library-annotation-card { background: #fffaf7; }
html[data-theme="berry"] .library-annotation-card:nth-child(even) { background: #f1f2ff; transform: rotate(0.35deg); }
html[data-theme="berry"] .spread-annotation-popover::before { position: absolute; top: -8px; left: 50%; width: 92px; height: 16px; background: rgba(255, 193, 87, 0.54); content: ""; transform: translateX(-50%) rotate(2deg); }
html[data-theme="berry"] .submitbar { border: 3px solid #fff; box-shadow: 7px 8px 0 rgba(225, 82, 123, 0.15); }
html[data-theme="berry"] .tools-toggle { border: 3px solid #fff; background: var(--primary-gradient); color: white; }
html[data-theme="berry"] .text mark { border-radius: 3px; box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.75); }

/* Celadon tea room: rice paper, porcelain blue and cinnabar seal. */
html[data-theme="ocean"] .annotation-home-entry,
html[data-theme="ocean"] .library-note-book,
html[data-theme="ocean"] .library-annotation-card,
html[data-theme="ocean"] .inline-note,
html[data-theme="ocean"] .note-card,
html[data-theme="ocean"] .spread-annotation-popover { border-radius: 3px 16px 3px 16px; border-bottom: 3px solid #789d92; background: #f5f6ef; box-shadow: 5px 6px 0 rgba(93, 130, 117, 0.08); }
html[data-theme="ocean"] .library-note-mark { border-radius: 50%; background: radial-gradient(circle at 34% 27%, #f4f8f2, #a9c4bb 48%, #70998e); color: #31554c; }
html[data-theme="ocean"] .spread-annotation-popover::before { content: "共读"; float: right; display: grid; place-items: center; width: 32px; height: 32px; margin: 0 30px 10px 12px; border: 2px solid #b96050; color: #b96050; font-family: "Songti SC", serif; font-size: 9px; transform: rotate(3deg); }
html[data-theme="ocean"] .submitbar { border-radius: 4px 18px 4px 18px; border-bottom: 4px solid #789d92; background: #f5f6ef; }
html[data-theme="ocean"] .tools-toggle { background: radial-gradient(circle at 34% 27%, #f4f8f2, #a9c4bb 45%, #70998e); color: #31554c; }
html[data-theme="ocean"] .text mark.mine { border-radius: 50% 3px 45% 4px; background: linear-gradient(172deg, transparent 18%, color-mix(in srgb, var(--mine) 29%, transparent) 19% 82%, transparent 83%); box-shadow: none; }
html[data-theme="ocean"] .text mark.partner { border-radius: 3px 48% 4px 44%; background: linear-gradient(172deg, transparent 18%, color-mix(in srgb, var(--partner) 28%, transparent) 19% 82%, transparent 83%); box-shadow: none; }

/* Old bookshop: type, index drawers and wax seals. */
html[data-theme="bookshop"] .annotation-home-entry,
html[data-theme="bookshop"] .library-note-book,
html[data-theme="bookshop"] .library-annotation-card,
html[data-theme="bookshop"] .inline-note,
html[data-theme="bookshop"] .note-card,
html[data-theme="bookshop"] .spread-annotation-popover { border: 4px double #9f8867; border-radius: 0; background: #e8d5af; box-shadow: 8px 10px 0 rgba(67, 43, 25, 0.16); }
html[data-theme="bookshop"] .library-notes-head { border: 3px double #a28a67; padding: 14px; background: #ddc9a3; }
html[data-theme="bookshop"] .library-note-mark { border: 3px double #765e45; border-radius: 0; background: #b4976f; }
html[data-theme="bookshop"] .library-annotation-card::after { display: block; width: 68px; height: 14px; margin: 4px auto -25px; border: 3px double #66503c; background: #b49a75; content: ""; }
html[data-theme="bookshop"] .spread-annotation-popover::before { content: "ANNOTATION · CARD"; display: block; margin-bottom: 12px; color: #80674f; font-size: 9px; font-weight: 900; letter-spacing: 0.16em; }
html[data-theme="bookshop"] .submitbar { border: 3px double #a8926e; border-radius: 0; background: #e4d1aa; }
html[data-theme="bookshop"] .tools-toggle { background: radial-gradient(circle, #a85443 0 42%, #773126 43% 100%); color: #f3dfba; }
html[data-theme="bookshop"] .text mark.mine { border-radius: 0; background: repeating-linear-gradient(175deg, transparent 0 7px, color-mix(in srgb, var(--mine) 34%, transparent) 7px 9px); }
html[data-theme="bookshop"] .text mark.partner { border-radius: 0; background: repeating-linear-gradient(175deg, transparent 0 7px, color-mix(in srgb, var(--partner) 34%, transparent) 7px 9px); }
html[data-theme="bookshop"] .text mark.shared { background: repeating-linear-gradient(175deg, transparent 0 5px, color-mix(in srgb, var(--mine) 32%, transparent) 5px 7px, color-mix(in srgb, var(--partner) 32%, transparent) 7px 9px); }

/* Theme picker */
body.theme-picker-open { overflow: hidden; }
body.settings-open { overflow: hidden; }
.theme-picker[hidden] { display: none; }
.settings-panel[hidden] { display: none; }
.settings-panel { position: fixed; z-index: 100; inset: 0; display: grid; place-items: center; padding: max(20px, env(safe-area-inset-top)) 18px max(20px, env(safe-area-inset-bottom)); }
.settings-backdrop { position: absolute; inset: 0; width: 100%; border: 0; background: rgba(24, 20, 18, 0.4); backdrop-filter: blur(12px); }
.settings-sheet { position: relative; width: min(620px, 100%); max-height: calc(100svh - 40px); overflow: auto; border: 1px solid var(--line); border-radius: 30px; padding: 26px; background: color-mix(in srgb, var(--theme-paper) 97%, transparent); color: var(--text); box-shadow: 0 30px 100px rgba(34, 25, 20, 0.28); }
.settings-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.settings-head h2 { font-size: 28px; }
.settings-copy { margin: 14px 0 22px; color: var(--muted); line-height: 1.65; }
.settings-form { display: grid; gap: 16px; }
.settings-form label { display: grid; gap: 8px; color: var(--muted); font-size: 13px; font-weight: 800; }
.settings-form input { width: 100%; min-height: 48px; border: 1px solid var(--line); border-radius: 15px; padding: 0 14px; background: color-mix(in srgb, var(--theme-paper-2) 84%, transparent); color: var(--text); font: inherit; outline: none; }
.settings-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.app-icon-field { display: grid; grid-template-columns: 82px minmax(0, 1fr); align-items: center; gap: 15px; border: 1px solid var(--line); border-radius: 19px; padding: 13px; background: color-mix(in srgb, var(--theme-paper-2) 72%, transparent); }
.app-icon-field img { width: 82px; height: 82px; border-radius: 20px; object-fit: cover; background: var(--theme-paper-2); box-shadow: 0 8px 22px rgba(35, 27, 22, 0.13); }
.app-icon-copy { display: grid; gap: 5px; min-width: 0; }
.app-icon-copy strong { color: var(--text); font-size: 14px; }
.app-icon-copy small { color: var(--muted); font-size: 11px; line-height: 1.5; }
.app-icon-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 5px; }
.app-icon-upload { display: inline-flex !important; width: auto !important; min-height: 40px; align-items: center; justify-content: center; padding: 0 14px; color: var(--text) !important; font-size: 12px !important; cursor: pointer; }
.app-icon-upload input { display: none; }
.app-icon-actions .secondary-button { min-height: 40px; font-size: 12px; }
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.settings-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }
.theme-picker { position: fixed; z-index: 90; inset: 0; display: grid; place-items: center; padding: max(20px, env(safe-area-inset-top)) 18px max(20px, env(safe-area-inset-bottom)); }
.theme-picker-backdrop { position: absolute; inset: 0; width: 100%; border: 0; background: rgba(24, 20, 18, 0.36); backdrop-filter: blur(10px); }
.theme-picker-sheet { position: relative; width: min(820px, 100%); max-height: min(760px, calc(100svh - 40px)); overflow: auto; border: 1px solid var(--line); border-radius: 30px; padding: 24px; background: color-mix(in srgb, var(--theme-paper) 96%, transparent); color: var(--text); box-shadow: 0 30px 100px rgba(34, 25, 20, 0.26); }
.theme-picker-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.theme-picker-head h2 { font-size: 26px; }
.theme-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.theme-option { display: grid; grid-template-columns: 54px minmax(0, 1fr) auto; align-items: center; gap: 13px; min-width: 0; border: 1px solid var(--line); border-radius: 17px; padding: 11px; background: color-mix(in srgb, var(--theme-paper-2) 78%, transparent); color: var(--text); text-align: left; }
.theme-option.active { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.theme-option strong,.theme-option small { display: block; }
.theme-option strong { font-size: 14px; }
.theme-option small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.theme-option>b { color: var(--accent); opacity: 0; }
.theme-option.active>b { opacity: 1; }
.theme-preview { display: flex; overflow: hidden; width: 54px; height: 40px; border: 2px solid color-mix(in srgb, var(--text) 12%, transparent); border-radius: 12px; }
.theme-preview i { flex: 1; }
.blackcat-preview i:nth-child(1){background:#17161d}.blackcat-preview i:nth-child(2){background:#b58cff}.blackcat-preview i:nth-child(3){background:#86d8ff}
.rabbit-preview i:nth-child(1){background:#fffaf1}.rabbit-preview i:nth-child(2){background:#ff9a62}.rabbit-preview i:nth-child(3){background:#89b96b}
.duo-preview i:nth-child(1){background:#fff9f3}.duo-preview i:nth-child(2){background:#7767c7}.duo-preview i:nth-child(3){background:#f08ba4}
.forest-preview i:nth-child(1){background:#f7f4e9}.forest-preview i:nth-child(2){background:#e3b23c}.forest-preview i:nth-child(3){background:#5e8e59}
.berry-preview i:nth-child(1){background:#fffaf8}.berry-preview i:nth-child(2){background:#f55071}.berry-preview i:nth-child(3){background:#596fda}
.ocean-preview i:nth-child(1){background:#f6f7f1}.ocean-preview i:nth-child(2){background:#c96d58}.ocean-preview i:nth-child(3){background:#4f8296}
.bookshop-preview i:nth-child(1){background:#eee1c5}.bookshop-preview i:nth-child(2){background:#9e493d}.bookshop-preview i:nth-child(3){background:#3f7088}
.library-theme-button { min-height: 44px; border: 1px solid var(--line); border-radius: 14px; padding: 0 13px; background: var(--accent-soft); color: var(--accent); font-weight: 800; }
.library-note-controls { grid-template-columns: minmax(0, 1fr) minmax(140px, 0.45fr) auto; }

@media (max-width: 980px) {
  .theme-picker { align-items: end; padding-inline: 0; padding-bottom: 0; }
  .theme-picker-sheet { width: 100%; max-height: min(82svh, 760px); border-radius: 28px 28px 0 0; padding: 21px 18px calc(24px + env(safe-area-inset-bottom)); }
  .theme-options { grid-template-columns: 1fr; }
  .settings-panel { align-items: end; padding-inline: 0; padding-bottom: 0; }
  .settings-sheet { width: 100%; max-height: min(88svh, 760px); border-radius: 28px 28px 0 0; padding: 22px 18px calc(24px + env(safe-area-inset-bottom)); }
  .settings-grid { grid-template-columns: 1fr; }
  .app-icon-field { grid-template-columns: 68px minmax(0, 1fr); }
  .app-icon-field img { width: 68px; height: 68px; border-radius: 17px; }
  .library-note-controls { grid-template-columns: 1fr; }
  html[data-theme="rabbit"] .library-book-annotations { grid-template-columns: 1fr; }
  html[data-theme="duo"] .passage-voices { grid-template-columns: 1fr; }
}