:root {
  --bg: #f3efe6;
  --bg-2: #ebe4d6;
  --card: #fffcf7;
  --ink: #2c2a26;
  --muted: #736d64;
  --line: #e4ddd1;
  --accent: #3e5a4e;
  --accent-2: #2f473e;
  --accent-soft: #e7eee8;
  --danger: #8a4b3b;
  --shadow: 0 10px 30px rgba(44, 42, 38, 0.06);
  --radius: 18px;
  --nav: 72px;
  --now-playing: 0px;
  --keyboard: 0px;
  --font-ui: "Apple SD Gothic Neo", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-en: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
}

body {
  padding-bottom: env(safe-area-inset-bottom);
}

.boot-msg {
  margin: 48px 24px;
  text-align: center;
  color: var(--muted);
}

.audio-missing .hint {
  margin: 8px 0 14px;
}

button,
a,
label,
summary {
  touch-action: manipulation;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

#app {
  min-height: 100vh;
}

.shell {
  max-width: 760px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  padding: calc(10px + env(safe-area-inset-top)) 18px 10px;
  background: rgba(243, 239, 230, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.topbar-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topbar-sticky-actions {
  position: fixed;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: min(760px, 100%);
  z-index: 30;
  justify-content: flex-end;
  gap: 10px;
  padding-left: 10px;
}

.shell-has-actions .content {
  padding-top: calc(64px + env(safe-area-inset-top) + 8px);
}

.topbar-sticky-actions .topbar-title {
  margin-right: auto;
}

.topbar-action {
  flex: 1;
  min-height: 44px;
  padding: 10px 16px;
}

.topbar-action.is-current {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-2);
}

.content {
  padding: 8px 18px calc(var(--nav) + env(safe-area-inset-bottom) + var(--keyboard, 0px) + var(--now-playing, 0px) + 36px);
  max-width: 100%;
  overflow-x: hidden;
}

.hero,
.hero-min {
  padding: 8px 0 18px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.lead {
  margin: 0;
  color: var(--muted);
}

h1,
h2 {
  margin: 0;
  letter-spacing: -0.03em;
}

h1 {
  font-size: 28px;
  line-height: 1.25;
}

h2 {
  font-size: 18px;
}

.section {
  margin: 22px 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: flex-end;
}

.hint,
.muted {
  color: var(--muted);
  font-size: 13px;
}

.hint {
  display: block;
  margin: 4px 0 10px;
}

.stack {
  display: grid;
  gap: 12px;
  min-width: 0;
  max-width: 100%;
}

.stack > * {
  min-width: 0;
  max-width: 100%;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  max-width: 100%;
}

a.card {
  display: block;
  text-decoration: none;
  color: inherit;
}

.current-book,
.lesson-card,
.book-card {
  cursor: pointer;
}

.lesson-card,
.book-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 10px;
  max-width: 100%;
}

.lesson-card-link {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}

.card-side-actions {
  display: grid;
  gap: 8px;
  justify-items: stretch;
}

.lesson-card-title-form {
  grid-column: 1 / -1;
}
  position: relative;
  z-index: 3;
  flex-shrink: 0;
  min-height: 48px;
  min-width: 64px;
  padding: 10px 14px;
  border: 1px solid #e4cfc8;
  border-radius: 12px;
  background: #fff8f6;
  color: var(--danger);
  font-weight: 700;
}

.book-delete-row {
  margin: 8px 0 28px;
}

.btn.danger,
.btn-ghost.danger {
  color: var(--danger);
  border-color: #e4cfc8;
}

.current-title,
.book-title,
.lesson-book {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.lesson-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.audio-badge {
  display: inline-block;
  margin-left: 6px;
  font-size: 14px;
  vertical-align: middle;
}

.part-titles,
.script-preview {
  margin: 8px 0 6px;
  max-width: 100%;
  overflow: hidden;
}

.part-title-line,
.script-preview-line {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--ink);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.script-preview.is-paragraph {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.script-preview.is-paragraph .script-preview-line {
  white-space: normal;
  display: block;
  overflow: visible;
  text-overflow: unset;
}

.lesson-line {
  margin: 4px 0 8px;
  font-size: 15px;
}

.check {
  color: var(--accent);
  font-weight: 700;
}

.empty {
  padding: 28px 12px;
  text-align: center;
  color: var(--muted);
  background: rgba(255, 252, 247, 0.5);
  border-radius: var(--radius);
  border: 1px dashed var(--line);
}

.btn,
.btn-play {
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #f7f4ee;
  padding: 12px 18px;
  font-weight: 700;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn-wide {
  width: 100%;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
}

.add-expression-btn {
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: #fff;
  color: var(--accent);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  padding: 10px 22px;
  min-height: 48px;
}

.add-expression-btn-end {
  display: block;
  width: fit-content;
  margin: 14px 0 4px auto;
}

.text-btn {
  border: 0;
  background: none;
  color: var(--accent);
  padding: 0;
  font-weight: 700;
}

.text-btn.danger,
.danger {
  color: var(--danger);
}

.icon-btn {
  width: 44px;
  height: 44px;
  min-width: 44px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  font-size: 20px;
  color: var(--ink);
  z-index: 2;
}

.topbar-back {
  margin-left: -8px;
  color: var(--ink);
}

.topbar-back-icon {
  width: 22px;
  height: 22px;
  display: block;
}

.topbar-sticky-actions .topbar-back {
  flex: 0 0 auto;
}

.pager,
.row-actions,
.form-row,
.form-actions,
.item-actions,
.player-btns,
.speed-row,
.tabs,
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.pager {
  margin: 8px 0 14px;
  justify-content: space-between;
}

.pager .btn {
  flex: 1;
}

.row-actions {
  margin: 0 0 16px;
}

.check-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.lesson-head h1 {
  font-size: 26px;
}

.lesson-meta {
  margin: 6px 0 0;
  font-size: 16px;
}

.listen-section {
  margin: 28px 0;
}

.lesson-study-main > .listen-section:first-of-type {
  margin-top: 8px;
}

.lesson-study {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "audio"
    "main";
  align-items: start;
}

.lesson-study-main {
  grid-area: main;
  min-width: 0;
}

.lesson-place,
.compare-place {
  text-align: left;
}

.lesson-place {
  position: sticky;
  top: calc(64px + env(safe-area-inset-top));
  z-index: 16;
  margin: 0 0 4px;
  padding: 8px 0 10px;
  background: var(--bg);
}

.lesson-place-book {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.lesson-place-meta {
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
}

.compare-place {
  position: sticky;
  left: 12px;
  top: 12px;
  z-index: 4;
  width: fit-content;
  max-width: calc(100% - 24px);
  margin: 12px 0 0 12px;
  padding: 8px 12px;
  background: rgba(255, 252, 247, 0.92);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.lesson-study-audio {
  grid-area: audio;
  min-width: 0;
}

html.lesson-wide,
html.lesson-wide body,
.shell-lesson,
.shell-lesson .content {
  overflow-x: clip;
}

.prose {
  font-size: 16.5px;
  line-height: 1.75;
}

.script-en,
.item-en,
.en-area,
.part-title {
  font-family: var(--font-en);
}

.script-en {
  font-size: 19px;
  line-height: 1.7;
  margin: 10px 0 16px;
  white-space: pre-wrap;
}

.part-label {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.part-title {
  text-transform: none;
  letter-spacing: 0;
  font-size: 20px;
  color: var(--ink);
  font-weight: 700;
}

.item-en {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  white-space: pre-wrap;
}

.item-ko {
  margin: 6px 0 12px;
  color: #4b4741;
  white-space: pre-wrap;
}

.item-example {
  margin: -4px 0 12px;
  color: var(--muted);
  font-family: var(--font-en);
  font-style: italic;
  font-size: 16px;
  line-height: 1.55;
  white-space: pre-wrap;
  -webkit-user-select: text;
  user-select: text;
}

.item-example-ko {
  margin: -6px 0 12px;
  color: #4b4741;
  font-size: 15px;
  line-height: 1.55;
  white-space: pre-wrap;
  -webkit-user-select: text;
  user-select: text;
}

.pen-bar {
  position: fixed;
  left: 50%;
  bottom: var(--pen-bar-bottom, calc(var(--nav) + env(safe-area-inset-bottom) + 10px));
  transform: translateX(-50%);
  width: min(760px, calc(100% - 24px));
  z-index: 80;
  display: none;
  flex-direction: column;
  gap: 10px;
  padding: 12px 14px;
  background: #2b261f;
  color: #f7f4ee;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(43, 38, 31, 0.28);
}

html.lesson-wide .pen-bar,
html.listen-wide .pen-bar {
  width: min(1120px, calc(100% - 24px));
}

.pen-bar.is-on {
  display: flex;
}

.pen-bar.is-top {
  top: var(--pen-bar-top, calc(env(safe-area-inset-top) + 58px));
  bottom: auto;
}

.pen-bar.is-side {
  left: auto;
  right: 12px;
  bottom: var(--pen-bar-bottom, calc(var(--nav) + env(safe-area-inset-bottom) + 12px));
  transform: none;
  width: min(208px, calc(100vw - 24px));
}

.pen-bar.is-side .pen-bar-actions {
  flex-direction: column;
  align-items: stretch;
}

.pen-bar.is-side .pen-apply,
.pen-bar.is-side .pen-erase {
  min-width: 0;
  width: 100%;
}

.pen-bar-snippet {
  margin: 0;
  font-size: 14px;
  line-height: 1.4;
  color: #ddd6c8;
}

.pen-bar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.pen-bar button {
  appearance: none;
  margin: 0;
  border: 0;
  background: transparent;
  color: #f7f4ee;
  padding: 12px 14px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  touch-action: manipulation;
}

.pen-bar .pen-apply {
  flex: 1;
  min-width: 140px;
  border-radius: 999px;
  background: var(--accent);
  color: #f7f4ee;
}

.pen-bar [data-pen-close] {
  color: #ddd6c8;
}

.pen-bar.is-erase {
  background: #c45c26;
  box-shadow: 0 12px 28px rgba(196, 92, 38, 0.28);
}

.pen-bar.is-erase .pen-bar-snippet,
.pen-bar.is-erase [data-pen-close] {
  color: #ffe8d4;
}

.pen-bar .pen-erase {
  flex: 1;
  min-width: 140px;
  border-radius: 999px;
  background: #1e4d6b;
  color: #f7f4ee;
}

.item-card:has(.item-example) .item-ko,
.item-card:has(.item-example-ko) .item-ko {
  margin-bottom: 6px;
}

.item-extra-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 8px;
}

.label {
  display: inline-block;
  margin-right: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

.btn-play.ghost,
.item-actions .btn-play {
  background: var(--accent-soft);
  color: var(--accent-2);
  padding: 8px 14px;
  font-size: 14px;
}

.icon-star {
  margin-left: auto;
  border: 0;
  background: none;
  font-size: 20px;
  color: var(--muted);
}

.icon-star.is-on {
  color: #8a6a2f;
}

.player {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin: 8px 0 14px;
}

.player-status {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 12px;
}

.player-btns .btn-play {
  min-width: 112px;
  min-height: 48px;
  font-size: 16px;
}

.btn-play-lg {
  width: 100%;
  min-height: 56px;
  font-size: 18px;
  margin-bottom: 10px;
}

.btn-listen {
  flex: 1;
  min-height: 48px;
}

.voice-label {
  display: grid;
  gap: 6px;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
}

.voice-label select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 10px 12px;
  color: var(--ink);
  font-weight: 400;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.title-row[hidden] {
  display: none;
}

.title-pick-btn {
  display: flex;
  align-items: baseline;
  gap: 10px;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
}

.title-pick-btn h1 {
  flex: 1;
  min-width: 0;
}

.title-pick-hint {
  flex-shrink: 0;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.book-pick-list {
  display: grid;
  gap: 8px;
  margin: 10px 0 14px;
}

.book-pick-item {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  text-align: left;
  font-size: 17px;
  font-weight: 700;
}

.book-pick-item.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #f7f4ee;
}

.picker-overlay {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(20, 18, 16, 0.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
}

.picker-card {
  width: min(520px, 100%);
  max-height: min(78vh, 640px);
  display: flex;
  flex-direction: column;
  background: var(--card);
  border-radius: 22px;
  padding: 16px 16px 12px;
  box-shadow: var(--shadow);
}

.picker-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.picker-head h2 {
  font-size: 18px;
}

.picker-scroll {
  flex: 1;
  min-height: 180px;
  max-height: 52vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  display: grid;
  gap: 8px;
  margin: 10px 0 12px;
}

.title-editor {
  display: none !important;
  gap: 10px;
  margin: 10px 0 14px;
}

.title-editor.is-open {
  display: grid !important;
}

.meta-editor select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 14px;
  font-size: 16px;
  min-height: 48px;
}

.title-editor input,
.title-editor textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 14px;
  font-size: 16px;
}

.title-editor textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.55;
}

.add-expression-text {
  min-height: 220px;
  font-family: var(--font-en);
}

.translation-section {
  border-top: 1px dashed var(--line);
  padding-top: 8px;
}

.translation-view {
  display: grid;
  gap: 12px;
  align-content: start;
}

.translation-view .compare-part,
.listen-ko .compare-part {
  margin: 0;
}

.translation-editor {
  width: 100%;
  min-height: 160px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 12px 14px;
  line-height: 1.7;
  resize: vertical;
}

.translation-actions {
  margin-top: 10px;
}

.speed-row {
  flex-wrap: nowrap;
  overflow-x: auto;
}

.review-toolbar {
  flex: 0 0 auto;
  margin: 0 0 8px;
  padding: 0 0 10px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.review-jump-bar {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  margin: 0 0 10px;
  padding: 0;
}

.review-jump-btn {
  min-height: 40px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 8px 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.review-jump-btn:active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-2);
}

.icon-bookmark {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  min-height: 36px;
  padding: 4px 6px;
}

.icon-bookmark.is-on {
  color: var(--accent-2);
}

.item-card.is-bookmarked {
  box-shadow: inset 3px 0 0 var(--accent);
}

.review-toolbar .tabs,
.review-toolbar .filters {
  margin: 0;
}

.review-toolbar .filters {
  margin-top: 8px;
}

.chip {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 13px;
  flex: 0 0 auto;
}

.chip.is-active,
.tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #f7f4ee;
}

.tab {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 700;
}

.is-hidden-content {
  display: none;
}

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

.hidden-note.is-off {
  display: none;
}

.form {
  display: grid;
  gap: 16px;
  padding-bottom: 24px;
}

.form label {
  display: grid;
  gap: 6px;
  font-weight: 700;
  font-size: 14px;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 400;
}

.form select {
  min-height: 48px;
  appearance: auto;
}

.book-add-form {
  margin: 0 0 16px;
}

.book-add-form label,
.meta-editor label {
  display: grid;
  gap: 6px;
  font-weight: 700;
  font-size: 14px;
}

.chapter-toolbar,
.chapter-head {
  margin-bottom: 12px;
}

.chapter-head .chapter-title {
  margin: 0;
}

.chapter-toolbar {
  margin-top: 18px;
}

.form textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

.raw-ai {
  min-height: 220px !important;
  font-family: var(--font-ui);
  font-size: 15px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.cloud-card {
  margin: 0 0 18px;
}

.cloud-card.is-ok {
  border-color: #c9d9cf;
  background: #f4f8f5;
}

.cloud-card.is-warn {
  border-color: #e6d3b8;
  background: #fbf6ee;
}

.cloud-connect {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.cloud-connect textarea {
  min-height: 72px;
}

.ipad-card {
  margin: 0 0 18px;
  text-align: center;
}

.ipad-card-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  text-align: left;
  align-items: flex-start;
}

.ipad-url {
  margin: 8px 0 14px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  overflow-wrap: anywhere;
  word-break: break-all;
}

.ipad-qr {
  width: 180px;
  height: 180px;
  background: #fff;
  border-radius: 12px;
  padding: 8px;
}

.block {
  padding: 16px;
  border-radius: var(--radius);
  background: rgba(255, 252, 247, 0.7);
  border: 1px solid var(--line);
}

.block.highlight {
  background: #f7f3ea;
}

.block-title {
  font-weight: 800;
  margin-bottom: 6px;
}

.photo-add-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
}

.photo-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.photo-preview {
  display: grid;
  gap: 12px;
  margin-top: 10px;
}

.photo-slot {
  display: grid;
  gap: 6px;
  justify-items: center;
}

.photo-slot .text-btn {
  justify-self: center;
  text-align: center;
  padding: 6px 8px;
  font-size: 16px;
  -webkit-appearance: none;
  appearance: none;
}

.form label.photo-add-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
  gap: 0;
  min-width: 220px;
  min-height: 56px;
  margin-top: 4px;
  padding: 14px 28px;
  border: 2px solid var(--accent);
  border-radius: 4px;
  background: #fff;
  color: var(--accent);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.photo-add-limit {
  margin: 0;
  text-align: center;
}

.photo-preview img {
  display: block;
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  border-radius: 12px;
  background: #efe8dc;
}

.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(760px, 100%);
  z-index: 28;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 2px;
  padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
  background: rgba(251, 248, 242, 0.96);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.bottom-nav[hidden] {
  display: none !important;
}

html.has-now-playing {
  --now-playing: 86px;
}

#now-playing {
  position: fixed;
  left: 50%;
  bottom: calc(var(--nav) + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(760px, 100%);
  z-index: 29;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: #2f473e;
  color: #f7f4ee;
  box-shadow: 0 -10px 24px rgba(44, 42, 38, 0.16);
}

#now-playing[hidden] {
  display: none !important;
}

.now-playing-transport {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.now-playing-skip {
  min-width: 52px;
  min-height: 48px;
  padding: 8px 8px;
  color: #f7f4ee;
  border-color: rgba(247, 244, 238, 0.35);
}

.now-playing-toggle {
  min-width: 48px;
  min-height: 48px;
  flex: 0 0 auto;
}

.now-playing-main {
  flex: 1;
  min-width: 0;
  padding: 4px 6px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}

.now-playing-title,
.now-playing-sub {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.now-playing-title {
  font-size: 15px;
  font-weight: 700;
}

.now-playing-sub {
  margin-top: 2px;
  font-size: 13px;
  opacity: 0.86;
}

.now-playing-go,
.now-playing-stop {
  min-height: 48px;
  padding: 8px 12px;
  flex: 0 0 auto;
}

.now-playing-go {
  background: #f7f4ee;
  color: #2f473e;
  border-color: #f7f4ee;
}

.now-playing-stop {
  color: #f7f4ee;
  border-color: rgba(247, 244, 238, 0.35);
}

@media (max-width: 640px) {
  html.has-now-playing {
    --now-playing: 132px;
  }

  #now-playing {
    flex-wrap: wrap;
  }

  .now-playing-main {
    flex: 1 1 calc(100% - 12px);
    order: -1;
  }
}

html.compare-lock #now-playing {
  bottom: 0;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
}

html.lesson-wide #now-playing,
html.listen-wide #now-playing {
  width: min(1120px, 100%);
}

html.compare-lock,
html.compare-lock body,
html.compare-lock #app {
  height: var(--app-vh, 100svh);
  max-height: var(--app-vh, 100svh);
  overflow: hidden;
  padding-bottom: 0;
}

.shell-compare {
  max-width: none;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.shell-compare .topbar {
  flex: 0 0 auto;
}

.content.content-compare {
  position: relative;
  flex: 1;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

.compare-view {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 100%;
  min-height: 0;
  overflow: hidden;
  background: var(--bg-2);
}

.compare-photo {
  position: relative;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  background: #d8d0c2;
  padding-bottom: max(48px, env(safe-area-inset-bottom));
}

.compare-photo img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
}

.compare-photo img + img {
  border-top: 10px solid #cfc6b6;
}

.compare-empty {
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

.compare-ko {
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--card);
  border-left: 1px solid var(--line);
}

.compare-ko-head {
  flex: 0 0 auto;
  padding: 14px 16px 0;
}

.compare-ko-head h2 {
  font-size: 18px;
}

.compare-ko .hint {
  flex: 0 0 auto;
  margin: 6px 16px 8px;
}

.compare-ko-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 0 16px 12px;
  display: flex;
  flex-direction: column;
}

.compare-ko-body.is-script,
.compare-ko-body.is-expressions {
  display: grid;
  align-content: start;
  gap: 12px;
}

.compare-expression {
  margin: 0;
}

.compare-expression .item-ko {
  margin-bottom: 0;
}

.compare-text {
  font-size: 17px;
  line-height: 1.7;
  white-space: pre-wrap;
}

.compare-line {
  display: grid;
  gap: 4px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.compare-line:last-child {
  border-bottom: 0;
}

.compare-line-en {
  font-family: var(--font-en);
  font-size: 17px;
  line-height: 1.55;
}

.compare-speaker {
  font-weight: 700;
  color: var(--accent);
}

.compare-line-ko {
  font-size: 16px;
  line-height: 1.5;
  color: #4b4741;
}

.compare-line-note {
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted);
}

.compare-line-note strong {
  font-weight: 700;
  color: #5f5a54;
}

.compare-editor {
  flex: 1;
  width: 100%;
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fff;
  resize: none;
  line-height: 1.65;
}

.compare-actions {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: var(--card);
}

.compare-actions-main,
.compare-actions-side {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.compare-script-lead {
  margin: 0 0 4px;
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.compare-part {
  margin: 0;
}

.compare-part .script-en {
  font-size: 17px;
}

.photo-actions {
  margin: 0 0 8px;
}

.nav-item {
  border: 0;
  background: transparent;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.2;
  padding: 6px 0;
  white-space: nowrap;
}

.nav-item.is-active {
  color: var(--accent-2);
}

.nav-ico,
.nav-plus {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  line-height: 0;
}

.nav-ico svg,
.nav-plus svg {
  width: 22px;
  height: 22px;
  display: block;
}

.nav-plus {
  border-radius: 50%;
  background: var(--accent);
  color: #f7f4ee;
}

.nav-plus svg {
  width: 18px;
  height: 18px;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(20, 18, 16, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 72px 16px max(24px, env(safe-area-inset-bottom));
}

.lightbox-close {
  position: fixed;
  top: calc(10px + env(safe-area-inset-top));
  right: 16px;
  z-index: 51;
  min-height: 48px;
  padding: 10px 16px;
  border: 0;
  border-radius: 999px;
  background: #f7f4ee;
  color: var(--ink);
  font-weight: 800;
}

.lightbox-count {
  position: fixed;
  top: calc(10px + env(safe-area-inset-top));
  left: 16px;
  z-index: 51;
  color: #f7f4ee;
  font-weight: 800;
}

.lightbox-nav {
  position: fixed;
  top: 50%;
  z-index: 51;
  width: 48px;
  height: 48px;
  transform: translateY(-50%);
  border: 0;
  border-radius: 50%;
  background: #f7f4ee;
  color: var(--ink);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
}

.lightbox-prev {
  left: 12px;
}

.lightbox-next {
  right: 12px;
}

.lightbox img {
  max-width: 100%;
  max-height: calc(var(--app-vh, 100svh) - 120px);
  cursor: zoom-in;
  border-radius: 8px;
}

.lightbox.is-zoomed img {
  max-width: none;
  max-height: none;
  width: 180%;
  cursor: zoom-out;
}

.confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(20, 18, 16, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.confirm-card {
  width: min(420px, 100%);
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px 18px 16px;
  box-shadow: var(--shadow);
}

.confirm-text {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.5;
  white-space: pre-wrap;
}

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

.confirm-actions .btn {
  min-height: 48px;
  min-width: 88px;
}

.listen-mode-actions {
  display: grid;
  gap: 10px;
}

.listen-mode-actions .btn {
  min-height: 52px;
}

.listen-mode-actions .text-btn {
  justify-self: center;
  min-height: 44px;
}

.example-panel {
  width: min(560px, 100%);
  max-height: min(78dvh, 720px);
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px 18px 16px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 10px;
}

.example-panel-title {
  margin: 0;
  font-family: var(--font-en);
  font-size: 22px;
  letter-spacing: -0.02em;
}

.example-panel-meaning {
  margin: 0;
  color: #4b4741;
}

.example-panel label {
  display: grid;
  gap: 6px;
  font-weight: 700;
  font-size: 14px;
}

.example-panel textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 400;
  resize: vertical;
}

.example-find-list {
  display: grid;
  gap: 4px;
}

.example-find-item {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.example-find-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.example-find-item .item-example,
.example-find-item .item-example-ko {
  margin-left: 0;
  margin-right: 0;
}

.example-panel-hint {
  margin: 4px 0 0;
  text-align: center;
}

.example-panel a.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--nav) + 18px);
  transform: translateX(-50%);
  background: var(--ink);
  color: #f7f4ee;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 14px;
  z-index: 60;
  white-space: nowrap;
  max-width: calc(100% - 32px);
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 800px) {
  .content {
    padding-top: 12px;
  }

  h1 {
    font-size: 32px;
  }

  .script-en {
    font-size: 21px;
  }
}

.parse-status {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  text-align: left;
}

.parse-status-title {
  font-weight: 800;
  margin-bottom: 8px;
}

.parse-ok {
  color: var(--accent-2);
  font-weight: 700;
  margin: 3px 0;
}

.parse-miss {
  color: var(--muted);
  margin: 3px 0;
}

.audio-drop {
  position: relative;
  display: block;
  margin: 14px 0 0;
  padding: 22px 16px;
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  background: var(--card);
  text-align: center;
  overflow: hidden;
}

.audio-drop.is-over {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.audio-drop-title {
  font-weight: 800;
  font-size: 18px;
  margin: 0 0 8px;
}

.audio-player,
.audio-preview {
  margin-top: 14px;
}

.player-kicker {
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 4px;
}

.audio-file-name {
  font-weight: 700;
  margin: 0 0 14px;
  word-break: break-all;
}

.audio-transport {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 4px 0 14px;
}

.btn-play-round {
  width: 76px;
  height: 76px;
  min-width: 76px;
  padding: 0;
  font-size: 28px;
  display: grid;
  place-items: center;
}

.btn-skip {
  min-width: 76px;
  min-height: 56px;
  font-size: 16px;
  font-weight: 800;
}

.audio-seek {
  width: 100%;
  height: 32px;
  accent-color: var(--accent);
}

.audio-time {
  display: flex;
  justify-content: space-between;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--muted);
  margin: 2px 0 12px;
}

#audio-loop.is-active {
  background: var(--accent);
  color: #f7f4ee;
  border-color: var(--accent);
}

.file-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  cursor: pointer;
}

.audio-drop.file-btn {
  display: block;
}

.file-btn.text-btn {
  padding: 12px 8px;
}

.file-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  margin: 0;
  font-size: 28px;
  cursor: pointer;
}

#save-book-title,
#save-lesson,
#audio-save {
  min-height: 52px;
}

@media (max-width: 799px) {
  .btn-play-round {
    width: 84px;
    height: 84px;
    min-width: 84px;
    font-size: 30px;
  }

  .btn-skip {
    min-width: 84px;
    min-height: 64px;
    font-size: 17px;
  }

  .speed-row .chip {
    padding: 10px 14px;
    min-height: 44px;
    font-size: 15px;
  }

  .player-btns .btn-listen {
    min-height: 52px;
  }
}

.audio-sheet-handle {
  display: flex;
  width: 100%;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0 0 8px;
  padding: 12px 12px 10px;
  border: 0;
  border-radius: 14px 14px 0 0;
  background: #efe8dc;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.audio-sheet-pill {
  width: 56px;
  height: 6px;
  border-radius: 999px;
  background: #5c5850;
}

.audio-sheet-hint {
  line-height: 1.2;
}

.lesson-study-audio .audio-player,
.lesson-study-audio .audio-preview {
  margin-top: 0;
}

.lesson-study-audio .audio-drop {
  margin-top: 0;
}

.lesson-study-audio .audio-file-name {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 767px) {
  .lesson-study:has(.audio-player),
  .lesson-study:has(.audio-preview) {
    grid-template-areas: "main";
    padding-bottom: 220px;
  }

  .lesson-study-audio:has(.audio-player),
  .lesson-study-audio:has(.audio-preview) {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    bottom: calc(var(--nav) + env(safe-area-inset-bottom));
    width: min(760px, 100%);
    z-index: 25;
    padding: 0 12px 10px;
    background: rgba(251, 248, 242, 0.96);
    border-top: 1px solid var(--line);
    border-radius: 18px 18px 0 0;
    box-shadow: 0 -8px 24px rgba(44, 42, 38, 0.08);
    backdrop-filter: blur(16px);
  }

  .lesson-study-audio:has(.audio-player) .audio-sheet-handle {
    display: flex;
    margin: 0 -12px 8px;
    min-height: 52px;
    border-radius: 18px 18px 0 0;
  }

  .lesson-study-audio:has(.audio-player) .audio-player,
  .lesson-study-audio:has(.audio-preview) .audio-preview {
    padding: 4px 12px 10px;
    margin: 0;
  }

  .lesson-study-audio:has(.audio-player) .player-kicker {
    display: none;
  }

  .lesson-study-audio:has(.audio-player) .audio-file-name {
    font-size: 13px;
    margin: 0 0 8px;
    -webkit-line-clamp: 1;
  }

  .lesson-study-audio:has(.audio-player) .audio-transport,
  .lesson-study-audio:has(.audio-preview) .audio-transport {
    margin: 0 0 6px;
    gap: 8px;
  }

  .lesson-study-audio:has(.audio-player) .btn-play-round,
  .lesson-study-audio:has(.audio-preview) .btn-play-round {
    width: 56px;
    height: 56px;
    min-width: 56px;
    font-size: 22px;
  }

  .lesson-study-audio:has(.audio-player) .btn-skip,
  .lesson-study-audio:has(.audio-preview) .btn-skip {
    min-width: 64px;
    min-height: 44px;
    font-size: 14px;
  }

  .lesson-study-audio:has(.audio-player) .audio-seek {
    height: 24px;
  }

  .lesson-study-audio:has(.audio-player) .audio-time {
    margin: 0 0 6px;
    font-size: 12px;
  }

  .lesson-study-audio:has(.audio-player) .speed-row {
    margin-bottom: 4px;
  }

  .lesson-study-audio:has(.audio-player) .speed-row .chip {
    padding: 6px 10px;
    min-height: 36px;
    font-size: 13px;
  }

  .lesson-study-audio:has(.audio-player) .player-btns .btn-listen {
    min-height: 40px;
    font-size: 14px;
  }

  .lesson-study-audio:has(.audio-player) .form-actions {
    margin-top: 2px;
  }

  .lesson-study:has(.lesson-study-audio.is-collapsed .audio-player) {
    padding-bottom: 96px;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) {
    padding-bottom: 8px;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .audio-player {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas:
      "handle handle handle"
      "play name time";
    align-items: center;
    column-gap: 10px;
    row-gap: 0;
    padding: 0 8px 8px;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .audio-sheet-handle {
    grid-area: handle;
    margin: 0 -8px;
    padding-bottom: 2px;
    min-height: 40px;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .audio-transport {
    grid-area: play;
    margin: 0;
    gap: 0;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .audio-file-name {
    grid-area: name;
    margin: 0;
    font-size: 13px;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .audio-time {
    grid-area: time;
    margin: 0;
    gap: 4px;
    justify-content: flex-end;
    font-size: 11px;
    white-space: nowrap;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .audio-time #audio-total::before {
    content: "/ ";
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .btn-play-round {
    width: 44px;
    height: 44px;
    min-width: 44px;
    font-size: 18px;
  }

  .lesson-study-audio.is-collapsed:has(.audio-player) .btn-skip,
  .lesson-study-audio.is-collapsed:has(.audio-player) .audio-seek,
  .lesson-study-audio.is-collapsed:has(.audio-player) .speed-row,
  .lesson-study-audio.is-collapsed:has(.audio-player) .player-btns,
  .lesson-study-audio.is-collapsed:has(.audio-player) .form-actions {
    display: none;
  }
}

button.listen-pick-card,
a.listen-pick-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  align-items: center;
  background: var(--card);
  color: inherit;
}

.listen-pick-go {
  flex-shrink: 0;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 800;
}

.listen-range-card {
  display: grid;
  gap: 14px;
  margin: 0 0 16px;
  padding: 16px;
}

.listen-chip-section {
  display: grid;
  gap: 6px;
}

.listen-chip-row-label {
  color: var(--accent);
  font-size: 16px;
  font-weight: 800;
}

.listen-chip-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.listen-chip-head h3 {
  margin: 0;
  font-size: 16px;
}

.listen-chap-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  margin: 0 -16px;
  padding: 4px 16px 10px;
}

.listen-chap-chips {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  width: max-content;
}

.listen-chap-chip {
  flex: 0 0 auto;
  min-width: 48px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: inherit;
  font-weight: 800;
}

.listen-chap-chip.is-in-range {
  background: var(--accent-soft);
  border-color: #c5d4c8;
  color: var(--accent-2);
}

.listen-chap-chip.is-start,
.listen-chap-chip.is-end {
  background: var(--accent);
  border-color: var(--accent);
  color: #f7f4ee;
}

.listen-chap-chip:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  background: var(--bg-2);
  border-color: var(--line);
  color: var(--muted);
}

.listen-range-summary {
  margin: 0;
}

.listen-range-actions {
  display: grid;
  gap: 8px;
}

.listen-range-actions .btn {
  min-height: 52px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  transition: background-color 0.12s ease, color 0.12s ease, border-color 0.12s ease, transform 0.12s ease, box-shadow 0.12s ease;
}

.listen-range-actions .btn:active,
.listen-range-actions .btn.is-pressed {
  transform: scale(0.96);
  box-shadow: inset 0 4px 12px rgba(20, 18, 16, 0.35);
  outline: 3px solid #8fb59a;
  outline-offset: 2px;
}

.listen-range-actions .btn:not(.btn-ghost):active,
.listen-range-actions .btn:not(.btn-ghost).is-pressed {
  background: #16241d;
  color: #fff;
}

.listen-range-actions .btn-ghost:active,
.listen-range-actions .btn-ghost.is-pressed {
  background: var(--accent);
  border-color: var(--accent);
  color: #f7f4ee;
}

.listen-play {
  flex: 1;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 10px;
  min-height: 0;
}

.listen-player-dock {
  position: relative;
  z-index: 16;
  width: 100%;
  padding: 0;
}

.listen-player {
  position: relative;
  z-index: 16;
  margin: 0;
  padding: 4px 12px 10px;
  box-shadow: var(--shadow);
}

.listen-player .audio-sheet-handle {
  display: flex;
  margin: 0 -12px 6px;
  min-height: 44px;
}

.listen-player-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.listen-now {
  min-width: 0;
  margin: 0;
}

.listen-player .player-kicker {
  font-size: 12px;
  margin: 0 0 1px;
}

.listen-player .book-title {
  font-size: 18px;
  line-height: 1.2;
}

.listen-player .muted {
  font-size: 12px;
}

.listen-transport {
  flex: 0 0 auto;
  margin: 0;
  gap: 8px;
}

.listen-player .btn-play-round {
  width: 52px;
  height: 52px;
  min-width: 52px;
  font-size: 20px;
}

.listen-player .btn-skip {
  min-width: 52px;
  min-height: 40px;
  font-size: 13px;
}

.listen-player-tools {
  display: grid;
  gap: 4px;
  margin-top: 6px;
}

.listen-seek-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 42px;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.listen-player .audio-seek {
  height: 22px;
}

.listen-tool-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 10px;
}

.listen-player .speed-row {
  margin: 0;
  gap: 4px;
}

.listen-player .chip {
  padding: 4px 8px;
  font-size: 12px;
}

.listen-tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.listen-tool-actions .text-btn {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 7px 14px;
  min-height: 36px;
}

.listen-tool-actions .text-btn.danger {
  border-color: #e4cfc8;
  background: #fff8f6;
}

.listen-tool-actions #listen-loop.is-active {
  background: var(--accent);
  color: #f7f4ee;
  border-color: var(--accent);
}

.listen-texts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  min-height: 0;
  height: 100%;
}

.listen-col {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px 14px 18px;
}

.listen-col h2 {
  flex: 0 0 auto;
  margin: 0 0 8px;
  font-size: 15px;
}

.listen-script,
.listen-ko {
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 28px;
}

.listen-script {
  font-family: var(--font-en);
  font-size: 17px;
  line-height: 1.7;
  white-space: normal;
}

.listen-ko {
  display: grid;
  align-content: start;
  gap: 12px;
  font-size: 16.5px;
  line-height: 1.75;
  white-space: normal;
}

html.listen-play-lock,
html.listen-play-lock body,
html.listen-play-lock #app {
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  padding-bottom: 0;
}

.shell-listen-play {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.shell-listen-play .topbar {
  flex: 0 0 auto;
}

.shell-listen-play .bottom-nav {
  position: relative;
  left: auto;
  bottom: auto;
  transform: none;
  width: 100%;
  flex: 0 0 auto;
}

.content.content-listen-play {
  flex: 1;
  min-height: 0;
  padding: 8px 14px 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.listen-mini-now {
  display: none;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.listen-player-dock.is-collapsed .listen-player {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "handle handle"
    "main main";
  align-items: center;
  column-gap: 10px;
  padding: 0 8px 8px;
}

.listen-player-dock.is-collapsed .audio-sheet-handle {
  grid-area: handle;
  margin: 0 -8px;
  min-height: 40px;
}

.listen-player-dock.is-collapsed .listen-player-main {
  grid-area: main;
}

.listen-player-dock.is-collapsed .listen-transport {
  margin: 0;
}

.listen-player-dock.is-collapsed .listen-player-tools,
.listen-player-dock.is-collapsed .btn-skip,
.listen-player-dock.is-collapsed .player-kicker,
.listen-player-dock.is-collapsed .book-title,
.listen-player-dock.is-collapsed [data-listen-now] {
  display: none;
}

.listen-player-dock.is-collapsed .listen-mini-now {
  display: block;
}

.listen-player-dock.is-collapsed .btn-play-round {
  width: 44px;
  height: 44px;
  min-width: 44px;
  font-size: 18px;
}

html.review-lock,
html.review-lock body,
html.review-lock #app {
  height: var(--app-vh, 100svh);
  max-height: var(--app-vh, 100svh);
  min-height: 0;
  overflow: hidden;
  padding-bottom: 0;
}

.shell-review,
.shell-search {
  height: 100%;
  max-height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.shell-review .topbar,
.shell-search .topbar {
  flex: 0 0 auto;
}

.shell-review .bottom-nav,
.shell-search .bottom-nav {
  position: relative;
  left: auto;
  bottom: auto;
  transform: none;
  width: 100%;
  flex: 0 0 auto;
}

.content.content-review {
  flex: 1;
  min-height: 0;
  padding: 8px 18px 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.review-page {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.review-page .lead {
  flex: 0 0 auto;
}

.search-page {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.search-field {
  display: grid;
  gap: 6px;
  flex: 0 0 auto;
  font-weight: 700;
  font-size: 14px;
  margin: 0 0 12px;
}

.search-field input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 400;
}

#search-results {
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 12px;
}

.search-hit-card {
  width: 100%;
  text-align: left;
}

.search-hit-main {
  display: block;
  width: 100%;
  border: 0;
  background: none;
  padding: 0;
  text-align: left;
  color: inherit;
}

.search-hit-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 2px;
}

.search-hit-meta .muted {
  min-width: 0;
  flex: 1;
}

.search-hit-meta .text-btn {
  flex-shrink: 0;
  min-height: 32px;
  padding: 4px 0 4px 8px;
}

.search-word {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.search-phrase-tag {
  margin-top: 2px;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
}

.search-snippet {
  margin: 6px 0 8px;
  font-family: var(--font-en);
  font-size: 16px;
  line-height: 1.5;
}

.search-sentence-head {
  margin: 0 0 12px;
}

.search-sentence-head .search-word {
  margin-top: 6px;
}

.search-hit {
  border-radius: 4px;
}

.search-hit .review-mark {
  box-shadow: 0 0 0 2px #ffe566;
}

.review-return-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  padding: 12px 14px;
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.review-return-bar .hint {
  margin: 0;
}

mark.review-mark {
  background: #ffe566;
  color: inherit;
  padding: 0 0.12em;
  border-radius: 3px;
}

.item-example mark.review-mark {
  color: #2b261f;
  font-style: italic;
}

mark.pen-mark {
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(230, 194, 0, 0.22);
}

mark.pen-mark.is-pen-picked {
  background: #ffd43b;
  box-shadow: 0 0 0 2px #c9a227;
}

.item-card.is-review-focus {
  box-shadow: 0 0 0 2px #e6c200;
}

#review-list {
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-top: 10px;
}

@media (max-width: 380px) {
  .nav-item {
    font-size: 9px;
  }
}

html.listen-wide,
html.listen-wide body,
.shell-listen,
.shell-listen .content {
  overflow-x: clip;
}

@media (min-width: 768px) {
  .nav-item {
    font-size: 11px;
  }

  .shell-lesson,
  .shell-listen {
    max-width: 1120px;
  }

  .listen-texts {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
    overflow: hidden;
  }

  .listen-script {
    font-size: 19px;
  }

  .listen-player-main {
    gap: 16px;
  }

  .shell-lesson .topbar-sticky-actions,
  .shell-lesson .bottom-nav,
  .shell-listen .bottom-nav {
    width: min(1120px, 100%);
  }

  .lesson-study-audio .audio-sheet-handle {
    display: none;
  }

  .lesson-study {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
    grid-template-areas: "main audio";
    gap: 18px;
  }

  .lesson-study-audio {
    position: sticky;
    top: calc(64px + env(safe-area-inset-top) + 8px);
    z-index: 15;
    max-height: calc(100dvh - 64px - env(safe-area-inset-top) - var(--nav) - env(safe-area-inset-bottom) - 28px);
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .lesson-study-audio .audio-player,
  .lesson-study-audio .audio-preview,
  .lesson-study-audio .audio-drop {
    box-shadow: 0 12px 28px rgba(44, 42, 38, 0.08);
  }

  .lesson-study-audio .btn-play-round {
    width: 64px;
    height: 64px;
    min-width: 64px;
    font-size: 24px;
  }

  .lesson-study-audio .btn-skip {
    min-width: 64px;
    min-height: 48px;
    font-size: 14px;
  }

  .lesson-study-audio .audio-transport {
    gap: 8px;
    margin: 2px 0 10px;
  }

  .lesson-study-audio .player-btns .btn-listen {
    min-height: 44px;
  }
}