:root {
  color-scheme: light dark;
  --bg: #f7f4ef;
  --panel: rgba(255, 255, 255, 0.72);
  --panel-strong: rgba(255, 255, 255, 0.9);
  --text: #1f1e1b;
  --muted: #8a8883;
  --line: rgba(45, 42, 36, 0.1);
  --accent: #d9795c;
  --accent-soft: rgba(217, 121, 92, 0.14);
  --blue-soft: rgba(108, 142, 184, 0.16);
  --shadow: 0 18px 60px rgba(36, 31, 24, 0.08);
  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: var(--bg);
  color: var(--text);
}

button,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

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

.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-size: 42px;
  line-height: 1;
}

h2 {
  font-size: 28px;
  line-height: 1.12;
}

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

.book,
.chunk,
.note-card {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 18px;
  background: var(--panel);
  color: inherit;
  text-align: left;
  box-shadow: none;
}

.book,
.chunk {
  padding: 16px;
}

.book:hover,
.chunk:hover,
.book.active,
.chunk.active {
  border-color: var(--accent-soft);
  background: var(--panel-strong);
}

.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: 24px;
  line-height: 1.78;
  white-space: pre-wrap;
}

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

.text mark.shared {
  background: linear-gradient(90deg, var(--accent-soft), var(--blue-soft));
}

.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;
}

.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 {
  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-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 {
  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-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);
}

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);
}

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

.primary-button {
  background: var(--accent);
  color: white;
  font-weight: 800;
}

.secondary-button,
.icon-button {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text);
}

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

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

@media (max-width: 980px) {
  .app {
    grid-template-columns: 1fr;
  }

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

  .sidebar,
  .chapters,
  .reader {
    padding: 22px 18px;
  }

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

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

  body.has-book .books {
    max-height: 42vh;
    overflow: auto;
    padding-right: 2px;
  }

  body.has-chunk .chunk-list {
    max-height: 40vh;
    overflow: auto;
    padding-right: 2px;
  }

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

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

  .reader-actions {
    flex: 0 0 auto;
  }

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

  .text {
    padding-bottom: 140px;
    font-size: 22px;
    line-height: 1.82;
  }

  .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-bottom: max(12px, env(safe-area-inset-bottom));
  }

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

  .submit-actions {
    justify-content: flex-end;
  }

  .margins {
    overflow: visible;
  }

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

  .reply-form {
    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);
  }
}