.lecture-notes-root {
  --lecture-notes-ink: #111;
  --lecture-notes-soft-ink: #506175;
  --lecture-notes-bg: #fff;
  --lecture-notes-surface: #fff;
  --lecture-notes-panel: #fbfbfb;
  --lecture-notes-line: #dbe4ef;
  --lecture-notes-accent: #2f7be5;
  --lecture-notes-success: #0ead69;
  --lecture-notes-danger: #c44536;
  --lecture-notes-shadow: 0 6px 22px rgba(0, 0, 0, 0.1);
  color: var(--lecture-notes-ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

.lecture-notes-root [hidden] {
  display: none !important;
}

.lecture-notes {
  --lecture-notes-content-width: min(92vw, 1280px);
  overflow: hidden;
  border: 1px solid #e6e6e6;
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--lecture-notes-shadow);
}

.lecture-notes:fullscreen,
.lecture-notes:-webkit-full-screen,
.lecture-notes:-moz-full-screen,
.lecture-notes:-ms-fullscreen,
.lecture-notes.is-fullscreen-active {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: none;
  border-radius: 0;
  padding: clamp(20px, 5vh, 48px) 0;
  box-sizing: border-box;
}

.lecture-notes:fullscreen .lecture-notes__layout,
.lecture-notes:-webkit-full-screen .lecture-notes__layout,
.lecture-notes:-moz-full-screen .lecture-notes__layout,
.lecture-notes:-ms-fullscreen .lecture-notes__layout,
.lecture-notes:fullscreen .lecture-notes__main,
.lecture-notes:-webkit-full-screen .lecture-notes__main,
.lecture-notes:-moz-full-screen .lecture-notes__main,
.lecture-notes:-ms-fullscreen .lecture-notes__main,
.lecture-notes.is-fullscreen-active .lecture-notes__layout,
.lecture-notes.is-fullscreen-active .lecture-notes__main {
  min-height: 100%;
  height: 100%;
}

.lecture-notes:fullscreen .lecture-notes__layout,
.lecture-notes:-webkit-full-screen .lecture-notes__layout,
.lecture-notes:-moz-full-screen .lecture-notes__layout,
.lecture-notes:-ms-fullscreen .lecture-notes__layout,
.lecture-notes.is-fullscreen-active .lecture-notes__layout {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.lecture-notes:fullscreen .lecture-notes__main,
.lecture-notes:-webkit-full-screen .lecture-notes__main,
.lecture-notes:-moz-full-screen .lecture-notes__main,
.lecture-notes:-ms-fullscreen .lecture-notes__main,
.lecture-notes.is-fullscreen-active .lecture-notes__main {
  position: relative;
  top: auto;
  left: auto;
  transform: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: min(100%, 1320px);
  min-height: 100%;
  height: 100%;
  padding: 132px 24px 28px;
  gap: 12px;
  margin: 0;
  align-self: auto;
  justify-self: auto;
}

.lecture-notes:fullscreen .lecture-notes__toolbar,
.lecture-notes:-webkit-full-screen .lecture-notes__toolbar,
.lecture-notes:-moz-full-screen .lecture-notes__toolbar,
.lecture-notes:-ms-fullscreen .lecture-notes__toolbar,
.lecture-notes.is-fullscreen-active .lecture-notes__toolbar {
  position: absolute;
  top: 18px;
  left: 24px;
  right: 24px;
  width: auto;
}

.lecture-notes:fullscreen .lecture-notes__playArea,
.lecture-notes:-webkit-full-screen .lecture-notes__playArea,
.lecture-notes:-moz-full-screen .lecture-notes__playArea,
.lecture-notes:-ms-fullscreen .lecture-notes__playArea,
.lecture-notes.is-fullscreen-active .lecture-notes__playArea {
  position: absolute;
  top: calc(58% + (var(--lecture-notes-fs-top-offset, 110px) / 2));
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(92vw, 1100px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.lecture-notes:fullscreen.lecture-notes--duo .lecture-notes__playArea,
.lecture-notes:-webkit-full-screen.lecture-notes--duo .lecture-notes__playArea,
.lecture-notes:-moz-full-screen.lecture-notes--duo .lecture-notes__playArea,
.lecture-notes:-ms-fullscreen.lecture-notes--duo .lecture-notes__playArea,
.lecture-notes.is-fullscreen-active.lecture-notes--duo .lecture-notes__playArea {
  width: min(92vw, 1280px);
}

.lecture-notes:fullscreen .lecture-notes__stage,
.lecture-notes:-webkit-full-screen .lecture-notes__stage,
.lecture-notes:-moz-full-screen .lecture-notes__stage,
.lecture-notes:-ms-fullscreen .lecture-notes__stage,
.lecture-notes.is-fullscreen-active .lecture-notes__stage {
  align-self: center;
  width: var(--lecture-notes-content-width);
  min-height: min(30vh, 280px);
}

.lecture-notes:fullscreen .lecture-notes-abc,
.lecture-notes:-webkit-full-screen .lecture-notes-abc,
.lecture-notes:-moz-full-screen .lecture-notes-abc,
.lecture-notes:-ms-fullscreen .lecture-notes-abc,
.lecture-notes.is-fullscreen-active .lecture-notes-abc {
  min-height: min(26vh, 240px);
  align-items: center;
}

.lecture-notes:fullscreen .lecture-notes__answerDisplay--stage,
.lecture-notes:-webkit-full-screen .lecture-notes__answerDisplay--stage,
.lecture-notes:-moz-full-screen .lecture-notes__answerDisplay--stage,
.lecture-notes:-ms-fullscreen .lecture-notes__answerDisplay--stage,
.lecture-notes.is-fullscreen-active .lecture-notes__answerDisplay--stage {
  bottom: clamp(28px, 8vh, 72px);
}

.lecture-notes:fullscreen .lecture-notes__keyboard,
.lecture-notes:-webkit-full-screen .lecture-notes__keyboard,
.lecture-notes:-moz-full-screen .lecture-notes__keyboard,
.lecture-notes:-ms-fullscreen .lecture-notes__keyboard,
.lecture-notes.is-fullscreen-active .lecture-notes__keyboard {
  align-self: start;
  margin-top: 0;
  padding-bottom: 6px;
  width: var(--lecture-notes-content-width);
}

.lecture-notes:fullscreen .lecture-notes__duo,
.lecture-notes:-webkit-full-screen .lecture-notes__duo,
.lecture-notes:-moz-full-screen .lecture-notes__duo,
.lecture-notes:-ms-fullscreen .lecture-notes__duo,
.lecture-notes.is-fullscreen-active .lecture-notes__duo {
  align-self: center;
  width: min(92vw, 1280px);
}

.lecture-notes:fullscreen .lecture-notes__duoStage,
.lecture-notes:-webkit-full-screen .lecture-notes__duoStage,
.lecture-notes:-moz-full-screen .lecture-notes__duoStage,
.lecture-notes:-ms-fullscreen .lecture-notes__duoStage,
.lecture-notes.is-fullscreen-active .lecture-notes__duoStage {
  min-height: min(34vh, 320px);
}

.lecture-notes:fullscreen .lecture-notes__panel,
.lecture-notes:-webkit-full-screen .lecture-notes__panel,
.lecture-notes:-moz-full-screen .lecture-notes__panel,
.lecture-notes:-ms-fullscreen .lecture-notes__panel,
.lecture-notes.is-fullscreen-active .lecture-notes__panel,
.lecture-notes:fullscreen .lecture-notes__groupDrawer,
.lecture-notes:-webkit-full-screen .lecture-notes__groupDrawer,
.lecture-notes:-moz-full-screen .lecture-notes__groupDrawer,
.lecture-notes:-ms-fullscreen .lecture-notes__groupDrawer,
.lecture-notes.is-fullscreen-active .lecture-notes__groupDrawer {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  height: 100vh;
  height: 100dvh;
  max-height: none;
  border-radius: 0;
}

.lecture-notes:fullscreen .lecture-notes__groupFab,
.lecture-notes:-webkit-full-screen .lecture-notes__groupFab,
.lecture-notes:-moz-full-screen .lecture-notes__groupFab,
.lecture-notes:-ms-fullscreen .lecture-notes__groupFab,
.lecture-notes.is-fullscreen-active .lecture-notes__groupFab {
  position: fixed;
  left: 24px;
  bottom: 24px;
  z-index: 40;
}

.lecture-notes:fullscreen .lecture-notes__groupTurn,
.lecture-notes:-webkit-full-screen .lecture-notes__groupTurn,
.lecture-notes:-moz-full-screen .lecture-notes__groupTurn,
.lecture-notes:-ms-fullscreen .lecture-notes__groupTurn,
.lecture-notes.is-fullscreen-active .lecture-notes__groupTurn {
  position: fixed;
  left: 80px;
  bottom: 38px;
  z-index: 40;
  max-width: min(50vw, 420px);
}

.lecture-notes__layout {
  position: relative;
  min-height: 0;
}

.lecture-notes__panel {
  position: absolute;
  inset: 0 auto 0 0;
  width: 460px;
  max-width: calc(100% - 28px);
  border-right: 1px solid #eee;
  background: var(--lecture-notes-panel);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.1);
  transform: translateX(calc(-100% - 8px));
  transition: transform 180ms ease;
  z-index: 40;
  pointer-events: none;
}

.lecture-notes--panel-open .lecture-notes__panel {
  transform: translateX(0);
  pointer-events: auto;
}

.lecture-notes__groupDrawer {
  position: absolute;
  inset: 0 auto 0 0;
  width: 360px;
  max-width: calc(100% - 28px);
  border-right: 1px solid #eee;
  background: var(--lecture-notes-panel);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.1);
  transform: translateX(calc(-100% - 8px));
  transition: transform 180ms ease;
  z-index: 40;
  pointer-events: none;
}

.lecture-notes--group-open .lecture-notes__groupDrawer {
  transform: translateX(0);
  pointer-events: auto;
}

.lecture-notes__panelClose,
.lecture-notes__miniButton,
.lecture-notes__fab,
.lecture-notes__key,
.lecture-notes__ambitusLabel,
.lecture-notes__ambitusFallbackNote {
  border: 1px solid #d7dce3;
  background: #fff;
  color: var(--lecture-notes-ink);
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease, background 140ms ease;
}

.lecture-notes__panelClose:hover,
.lecture-notes__miniButton:hover,
.lecture-notes__fab:hover,
.lecture-notes__key:hover,
.lecture-notes__ambitusLabel:hover,
.lecture-notes__ambitusFallbackNote:hover {
  transform: translateY(-1px);
  border-color: #c7d7e8;
  box-shadow: 0 4px 10px rgba(20, 60, 120, 0.12);
}

.lecture-notes__panelClose {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  cursor: pointer;
}

.lecture-notes__panelBody {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
  overflow-y: auto;
  padding: 54px 16px 18px;
}

.lecture-notes__panelHeader {
  position: absolute;
  top: 12px;
  left: 16px;
  right: 56px;
  display: flex;
  align-items: center;
  min-height: 34px;
  z-index: 1;
}

.lecture-notes__field label,
.lecture-notes__sectionTitle {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--lecture-notes-ink);
}

.lecture-notes__toggleField {
  display: flex !important;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
}

.lecture-notes__clefChecks {
  display: block;
  margin-top: 8px;
}

.lecture-notes__clefStaffSelector {
  position: relative;
  padding: 8px 10px;
  border: 1px solid #e3ebf5;
  border-radius: 14px;
  background: #fff;
}

.lecture-notes__toggleField input {
  margin: 0;
}

.lecture-notes__clefStaffAbc {
  position: relative;
  z-index: 1;
  min-height: 78px;
}

.lecture-notes__clefStaffAbc svg {
  display: block;
  width: 100%;
  height: 78px;
  transform: translateX(10px);
}

.lecture-notes__clefStaffAbc .abcjs-note,
.lecture-notes__clefStaffAbc .abcjs-rest,
.lecture-notes__clefStaffAbc .abcjs-ledger {
  display: none;
}

.lecture-notes__clefStaffHotspots {
  position: absolute;
  inset: 8px 10px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  z-index: 2;
}

.lecture-notes__clefStaffHit {
  border: 1px solid transparent;
  background: transparent;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: none;
  transition: background 140ms ease, border-color 140ms ease;
}

.lecture-notes__clefStaffHit:hover {
  background: rgba(47, 123, 229, 0.06);
}

.lecture-notes__clefStaffHit.is-active {
  background: rgba(47, 123, 229, 0.06);
  border-color: #2f7be5;
  box-shadow: none;
}

.lecture-notes__field select {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid #dfe8f2;
  border-radius: 12px;
  background: #fff;
  color: var(--lecture-notes-ink);
  font-size: 0.96rem;
}

.lecture-notes__ambitusBlock {
  display: grid;
  gap: 10px;
}

.lecture-notes__sectionHint {
  margin: 0;
  color: var(--lecture-notes-soft-ink);
  font-size: 0.88rem;
  line-height: 1.5;
}

.lecture-notes__sectionHint--error {
  color: var(--lecture-notes-danger);
}

.lecture-notes__main {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
  padding: 18px 18px 24px;
  position: relative;
}

.lecture-notes__playArea {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 72px;
  box-sizing: border-box;
}

.lecture-notes__toolbar,
.lecture-notes__scoreboard,
.lecture-notes__ambitusActions,
.lecture-notes__answerActions,
.lecture-notes__answerActions--duo,
.lecture-notes__duoHead {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.lecture-notes__scoreboard {
  width: var(--lecture-notes-content-width);
  justify-content: flex-start;
  align-self: center;
}

.lecture-notes__toolbar {
  display: grid;
  grid-template-columns: minmax(max-content, 1fr) auto minmax(max-content, 1fr);
  grid-template-areas: "meta quiz group";
  align-items: center;
  min-height: 46px;
  gap: 10px;
  position: relative;
  z-index: 30;
}

.lecture-notes__toolbarMeta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  justify-self: start;
  grid-area: meta;
  z-index: 2;
}

.lecture-notes__groupHelp {
  margin: 0 0 8px;
  color: var(--lecture-notes-soft-ink);
  font-size: 0.82rem;
  line-height: 1.4;
}

.lecture-notes__groupTextarea {
  width: 100%;
  min-height: 150px;
  padding: 10px 12px;
  border: 1px solid #d7dce3;
  border-radius: 12px;
  background: #fff;
  color: var(--lecture-notes-ink);
  font: inherit;
  resize: vertical;
  box-sizing: border-box;
}

.lecture-notes__groupActions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.lecture-notes__groupPause,
.lecture-notes__groupPrev,
.lecture-notes__groupClear {
  align-self: flex-start;
  min-width: 0;
  padding: 7px 10px;
  font-size: 0.82rem;
  font-weight: 600;
}

.lecture-notes__groupPause {
  border: 1px solid #f2d2b0;
  background: #fff4e8;
  color: #a25c12;
}

.lecture-notes__groupPause:hover {
  background: #ffedd8;
  border-color: #eabb8f;
}

.lecture-notes__groupPause.is-paused {
  border-color: #b9dfc7;
  background: #e9f8ee;
  color: #1f7a46;
}

.lecture-notes__groupPrev {
  border: 1px solid #c9d9f0;
  background: #f4f8ff;
  color: #355f9d;
}

.lecture-notes__groupPrev:hover {
  background: #eaf2ff;
  border-color: #b7cbec;
}

.lecture-notes__groupPrev:disabled {
  opacity: 0.45;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.lecture-notes__groupClear {
  border: 1px solid #f0c9c4;
  background: #fff4f2;
  color: #a63a2d;
}

.lecture-notes__groupClear:hover {
  background: #fde9e5;
  border-color: #e9b5ae;
}

.lecture-notes__groupPauseInfo {
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid #cfe0f7;
  border-radius: 12px;
  background: #f5f9ff;
  color: #355274;
  font-size: 0.82rem;
  line-height: 1.45;
}

.lecture-notes__toolbarGroup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
  min-width: 0;
  justify-self: end;
  grid-area: group;
  z-index: 2;
}

.lecture-notes--panel-open .lecture-notes__toolbarMeta,
.lecture-notes--group-open .lecture-notes__toolbarMeta {
  z-index: 0;
}

.lecture-notes__groupFab {
  position: absolute;
  left: 18px;
  bottom: 10px;
  z-index: 12;
}

.lecture-notes__groupTurn {
  position: absolute;
  left: 74px;
  bottom: 20px;
  z-index: 12;
  max-width: min(42vw, 320px);
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lecture-notes--panel-open .lecture-notes__groupFab,
.lecture-notes--group-open .lecture-notes__groupFab,
.lecture-notes--panel-open .lecture-notes__groupTurn,
.lecture-notes--group-open .lecture-notes__groupTurn {
  z-index: 1;
}

.lecture-notes__quizBar {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  position: static;
  z-index: 1;
  justify-self: center;
  grid-area: quiz;
  width: max-content;
  max-width: min(100%, 240px);
}

.lecture-notes__quizClock {
  min-width: 72px;
}

.lecture-notes__fab,
.lecture-notes__miniButton {
  cursor: pointer;
}

.lecture-notes__fab,
.lecture-notes__miniButton,
.lecture-notes__key,
.lecture-notes__stage,
.lecture-notes__duoStage,
.lecture-notes__keyboard,
.lecture-notes__keyboard--duo {
  touch-action: manipulation;
}

.lecture-notes__fab {
  border-radius: 999px;
  padding: 11px 16px;
  font-size: 0.92rem;
  font-weight: 800;
}

.lecture-notes__fab--icon {
  width: 46px;
  height: 46px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lecture-notes__fab--icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

.lecture-notes__miniButton {
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.84rem;
  font-weight: 700;
}

.lecture-notes__modeChooser {
  position: relative;
}

.lecture-notes__modeButton,
.lecture-notes__modeOption,
[data-role="mode-label"] {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.lecture-notes__duoToggle {
  width: 46px;
  height: 46px;
  justify-content: center;
  flex: 0 0 46px;
  padding: 0;
  border-radius: 999px;
}

.lecture-notes__modeButton:not(.lecture-notes__duoToggle) {
  width: 46px;
  height: 46px;
  padding: 0;
  justify-content: center;
  border-radius: 999px;
}

.lecture-notes__duoToggle [data-role="duo-toggle-label"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.lecture-notes__fullscreenButton {
  flex: 0 0 46px;
}

.lecture-notes__fullscreenButton .lecture-notes__fsExit {
  display: none;
}

.lecture-notes__fullscreenButton.is-fullscreen .lecture-notes__fsEnter {
  display: none;
}

.lecture-notes__fullscreenButton.is-fullscreen .lecture-notes__fsExit {
  display: block;
}

.lecture-notes__modeButtonText {
  opacity: 0.78;
}

.lecture-notes__duoToggle.is-active {
  background: #e9f2ff;
  color: #1f5fae;
  border-color: #c6ddff;
}

.lecture-notes__modeMenu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 280px;
  padding: 10px;
  border: 1px solid #d8e1ec;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--lecture-notes-shadow);
  z-index: 60;
  display: grid;
  gap: 8px;
}

.lecture-notes__modeCard {
  border: 1px solid #dbe4ef;
  border-radius: 14px;
  background: #fff;
  padding: 4px;
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.lecture-notes__modeCard.is-selected {
  border-color: #c6ddff;
  background: #e9f2ff;
  box-shadow: inset 0 0 0 1px rgba(47, 123, 229, 0.14);
}

.lecture-notes__modeOption {
  width: 100%;
  padding: 12px 14px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--lecture-notes-ink);
  text-align: left;
  font-size: 0.96rem;
  font-weight: 700;
  cursor: pointer;
}

.lecture-notes__modeOption:hover {
  background: #f3f7fd;
}

.lecture-notes__modeCard.is-selected .lecture-notes__modeOption {
  background: transparent;
}

.lecture-notes__modeQuizOptions {
  display: grid;
  gap: 10px;
  padding: 2px 8px 8px;
}

.lecture-notes__modeQuizGroup {
  display: grid;
  gap: 6px;
}

.lecture-notes__modeQuizGroupTitle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--lecture-notes-soft-ink);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.lecture-notes__modeQuizRow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lecture-notes__modeQuizRow--inline {
  align-items: center;
  flex-wrap: nowrap;
  gap: 6px;
}

.lecture-notes__modeQuizOption {
  border: 1px solid #d7dce3;
  border-radius: 999px;
  background: #fff;
  color: var(--lecture-notes-ink);
  min-width: 40px;
  justify-content: center;
  padding: 6px 8px;
  font-size: 0.76rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease, background 140ms ease;
}

.lecture-notes__modeQuizOption:hover {
  transform: translateY(-1px);
  border-color: #c7d7e8;
  box-shadow: 0 4px 10px rgba(20, 60, 120, 0.12);
}

.lecture-notes__modeQuizOption.is-active {
  border-color: #c6ddff;
  background: #e9f2ff;
  color: #1f5fae;
}

.lecture-notes__modeQuizOptionIcon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 16px;
}

.lecture-notes__modeQuizOptionIcon--row {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
}

.lecture-notes__modeQuizOptionIcon svg {
  width: 16px;
  height: 16px;
  display: block;
}

.lecture-notes__modeQuizOptionIcon--row svg {
  width: 20px;
  height: 20px;
}

.lecture-notes__modeSoundRow {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
}

.lecture-notes__modeSoundToggle {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border: 1px solid #c44536;
  border-radius: 999px;
  background: #fdeceb;
  color: #b83227;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

.lecture-notes__modeSoundToggle:hover {
  transform: translateY(-1px);
  border-color: #d25549;
  box-shadow: 0 4px 10px rgba(20, 60, 120, 0.12);
}

.lecture-notes__modeSoundToggle.is-active {
  border-color: #0ead69;
  background: #e8f8f0;
  color: #0b8d56;
}

.lecture-notes__modeSoundToggle svg {
  width: 16px;
  height: 16px;
  display: block;
}

.lecture-notes__modeInlineIcon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 18px;
}

.lecture-notes__modeInlineIcon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.lecture-notes__cardLabel {
  text-align: center;
}

.lecture-notes__cardLabel {
  color: var(--lecture-notes-soft-ink);
  font-size: 0.8rem;
  font-weight: 700;
}

.lecture-notes__groupTurnPrefix {
  color: var(--lecture-notes-soft-ink);
  font-size: 0.9rem;
  font-weight: 700;
}

.lecture-notes__groupTurnName {
  color: var(--lecture-notes-accent);
  font-size: 1.08rem;
  font-weight: 900;
}

.lecture-notes__cardLabel--toolbar {
  min-height: 0;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}

.lecture-notes__scorePill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid #e4ebf3;
  border-radius: 999px;
  background: #fbfdff;
  font-weight: 700;
}

.lecture-notes__scorePill--ok {
  border-color: #bfe8d3;
  background: #edf9f2;
  color: #1b6a49;
}

.lecture-notes__scorePill--miss {
  border-color: #efc7c2;
  background: #fff0ee;
  color: #9f3f34;
}

.lecture-notes__scorePill--clock {
  margin-left: auto;
}

.lecture-notes__duoClock,
.lecture-notes__scorePill--clock {
  min-width: 72px;
  padding: 7px 12px;
  border: 1px solid #dbe4ef;
  border-radius: 999px;
  background: #fbfdff;
  color: var(--lecture-notes-soft-ink);
  text-align: center;
  font-size: 0.96rem;
  font-weight: 800;
  line-height: 1;
}

.lecture-notes__scoreIcon {
  display: inline-flex;
  width: 18px;
  height: 18px;
}

.lecture-notes__scoreIcon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.lecture-notes__scoreboard,
.lecture-notes__stage,
.lecture-notes__duo,
.lecture-notes__keyboard {
  position: relative;
  z-index: 1;
}

.lecture-notes__keyboard {
  width: var(--lecture-notes-content-width);
  align-self: center;
}

.lecture-notes__stage,
.lecture-notes__duoStage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid #dbe4ef;
  background: linear-gradient(180deg, #fff 0%, #fbfdff 100%);
}

.lecture-notes__stage {
  align-self: center;
  width: var(--lecture-notes-content-width);
  min-height: 248px;
  border-radius: 24px;
}

.lecture-notes__stage--success {
  box-shadow:
    inset 0 0 0 3px rgba(14, 173, 105, 0.22),
    0 0 0 1px rgba(14, 173, 105, 0.08),
    0 0 28px rgba(14, 173, 105, 0.2);
}

.lecture-notes__stage--error {
  box-shadow: inset 0 0 0 4px rgba(196, 69, 54, 0.16);
}

.lecture-notes-abc {
  position: relative;
  z-index: 2;
  width: min(100%, 780px);
  min-height: 164px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px 10px;
  text-align: center;
}

.lecture-notes-abc--duo {
  width: 100%;
  min-height: 180px;
  padding: 4px 12px 42px;
}

.lecture-notes-abc.is-start-prompt {
  height: 164px;
  min-height: 164px;
  padding: 0 16px 10px;
  box-sizing: border-box;
}

.lecture-notes-abc--duo.is-start-prompt {
  height: 180px;
  min-height: 180px;
  padding: 4px 12px 42px;
  box-sizing: border-box;
}

.lecture-notes:not(.lecture-notes--scroll) .lecture-notes-abc {
  height: 164px;
}

.lecture-notes:not(.lecture-notes--scroll) .lecture-notes-abc--duo {
  height: 180px;
}

.lecture-notes__completion {
  display: grid;
  gap: 14px;
  justify-items: center;
  text-align: center;
}

.lecture-notes__completionTitle {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--lecture-notes-ink);
}

.lecture-notes__completionScore {
  color: var(--lecture-notes-soft-ink);
  font-size: 1.05rem;
  font-weight: 800;
}

.lecture-notes__completionMeta {
  color: var(--lecture-notes-soft-ink);
  font-size: 0.96rem;
  font-weight: 800;
}

.lecture-notes__completionReplay {
  margin-top: 2px;
  justify-content: center;
}

.lecture-notes__startPrompt {
  display: grid;
  gap: 14px;
  justify-items: center;
  text-align: center;
  align-content: center;
}

.lecture-notes__startPromptText {
  color: var(--lecture-notes-soft-ink);
  font-size: 1rem;
  font-weight: 700;
}

.lecture-notes__startInline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-color: #c6ddff;
  background: #e9f2ff;
  color: #1f5fae;
  font-size: 1rem;
  font-weight: 900;
}

.lecture-notes-overlay,
.lecture-notes__celebration {
  position: absolute;
  inset: 0;
}

.lecture-notes-overlay {
  z-index: 3;
  pointer-events: none;
}

.lecture-notes-overlay[data-interactive="true"] {
  pointer-events: none;
}

.lecture-notes__celebration {
  z-index: 4;
  overflow: hidden;
  pointer-events: none;
}

.lecture-notes__confetti {
  position: absolute;
  top: 26%;
  width: 11px;
  height: 20px;
  border-radius: 4px;
  animation: lecture-notes-confetti 0.95s ease-out forwards;
}

.lecture-notes__duoPane {
  --lecture-notes-player-accent: #2f7be5;
  --lecture-notes-player-accent-dark: #1f5fae;
  --lecture-notes-player-accent-soft: #e9f2ff;
  --lecture-notes-player-accent-border: #c6ddff;
  --lecture-notes-player-surface: #f8fbff;
  position: relative;
  padding: 14px;
  border: 1px solid #e4ebf3;
  border-radius: 18px;
  background: var(--lecture-notes-player-surface);
  overflow: hidden;
}

.lecture-notes__duoPane[data-player="right"] {
  --lecture-notes-player-accent: #1ea672;
  --lecture-notes-player-accent-dark: #157a54;
  --lecture-notes-player-accent-soft: #e9f9f0;
  --lecture-notes-player-accent-border: #bfe8d3;
  --lecture-notes-player-surface: #f7fdf9;
}

.lecture-notes__duoCelebration {
  position: absolute;
  inset: 0;
  z-index: 5;
  overflow: hidden;
  pointer-events: none;
}

.lecture-notes__answerDisplay {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
}

.lecture-notes__answerDisplay--stage {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 8px;
  z-index: 4;
}

.lecture-notes__writingFooter {
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 56px;
}

.lecture-notes__writingValidate {
  justify-content: center;
  min-width: 110px;
}

.lecture-notes__writingOverlayHint {
  position: absolute;
  top: 12px;
  left: 50%;
  z-index: 4;
  transform: translateX(-50%);
  color: var(--lecture-notes-soft-ink);
  font-size: 0.86rem;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
}

.lecture-notes__writingNoteChip {
  min-width: 74px;
  padding: 10px 16px;
  border: 1px solid #c6ddff;
  border-radius: 999px;
  background: #e9f2ff;
  color: #1f5fae;
  text-align: center;
  font-size: 1rem;
  font-weight: 900;
}

.lecture-notes__writingStatus {
  width: 28px;
  height: 28px;
  color: transparent;
}

.lecture-notes__writingStatus svg {
  display: block;
  width: 100%;
  height: 100%;
}

.lecture-notes__writingStatus.is-ok {
  color: #14925f;
}

.lecture-notes__writingStatus.is-ko {
  color: #c44536;
}

.lecture-notes--writing .lecture-notes__stage,
.lecture-notes--writing .lecture-notes__duoStage {
  touch-action: none;
}

.lecture-notes-abc.is-writing-ok .abcjs-note path,
.lecture-notes-abc.is-writing-ok .abcjs-note ellipse {
  stroke: #1f7a46 !important;
  fill: #1f7a46 !important;
  filter: drop-shadow(0 0 10px rgba(31, 122, 70, 0.28));
}

.lecture-notes-abc.is-writing-ko .abcjs-note path,
.lecture-notes-abc.is-writing-ko .abcjs-note ellipse {
  stroke: #c44536 !important;
  fill: #c44536 !important;
  filter: drop-shadow(0 0 10px rgba(196, 69, 54, 0.24));
}

.lecture-notes__answerChip {
  min-width: 82px;
  padding: 12px 16px;
  border: 1px dashed #d8dee8;
  border-radius: 16px;
  background: #f9fbff;
  color: var(--lecture-notes-soft-ink);
  text-align: center;
  font-size: 1.15rem;
  font-weight: 900;
}

.lecture-notes__answerChip.is-filled {
  border-style: solid;
  border-color: #c6ddff;
  background: #e9f2ff;
  color: #1f5fae;
}

.lecture-notes__answerChip.is-locked {
  border-style: solid;
  border-color: #7acb97;
  background: #e8f8ee;
  color: #1f7a46;
  box-shadow: 0 0 0 2px rgba(72, 187, 120, 0.18);
 }

.lecture-notes__answerChip--interval {
  min-width: 160px;
}

.lecture-notes__keyboard,
.lecture-notes__keyboard--duo {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 72px));
  justify-content: center;
  gap: 8px;
}

.lecture-notes__key {
  min-height: 44px;
  padding: 10px 8px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 900;
  border-color: #2a6fcb;
  background: #2f7be5;
  color: #fff;
  box-shadow: 0 4px 10px rgba(20, 60, 120, 0.18);
}

.lecture-notes__key:hover {
  border-color: #2a70d2;
  background: #2a70d2;
}

.lecture-notes__duo {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.lecture-notes__duoPane {
  display: grid;
  gap: 4px;
  align-content: start;
  width: 100%;
  min-width: 0;
}

.lecture-notes__duoPane.is-success {
  box-shadow: inset 0 0 0 3px rgba(14, 173, 105, 0.2);
}

.lecture-notes__duoPane.is-error {
  box-shadow: inset 0 0 0 3px rgba(196, 69, 54, 0.18);
}

.lecture-notes__duoHead {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
}

.lecture-notes__duoTitle {
  font-size: 1rem;
  font-weight: 900;
  color: var(--lecture-notes-player-accent-dark);
}

.lecture-notes__duoScore {
  color: var(--lecture-notes-soft-ink);
  font-weight: 700;
  font-size: 0.9rem;
  justify-self: end;
  text-align: right;
}

.lecture-notes__duoClock {
  justify-self: center;
}

.lecture-notes__duoStage {
  width: 100%;
  min-height: 250px;
  border-radius: 18px;
  border-color: var(--lecture-notes-player-accent-border);
  background: linear-gradient(180deg, #fff 0%, var(--lecture-notes-player-surface) 100%);
}

.lecture-notes__keyboard--duo,
.lecture-notes__duoPane .lecture-notes-abc--duo {
  width: 100%;
  min-width: 0;
  max-width: none;
}

.lecture-notes__duoPane .lecture-notes__miniButton {
  border-color: var(--lecture-notes-player-accent-border);
  background: var(--lecture-notes-player-accent-soft);
  color: var(--lecture-notes-player-accent-dark);
}

.lecture-notes__duoPane .lecture-notes__miniButton:hover {
  border-color: var(--lecture-notes-player-accent);
}

.lecture-notes__duoPane .lecture-notes__key {
  border-color: var(--lecture-notes-player-accent-dark);
  background: var(--lecture-notes-player-accent);
  color: #fff;
}

.lecture-notes__duoPane .lecture-notes__key:hover {
  border-color: var(--lecture-notes-player-accent-dark);
  background: var(--lecture-notes-player-accent-dark);
}

.lecture-notes__ambitusPicker {
  margin-top: 8px;
  padding: 0;
}

.lecture-notes__ambitusAbcWrap {
  display: grid;
  gap: 2px;
  padding: 8px 4px 6px;
  border: 1px solid #e3ebf5;
  border-radius: 14px;
  background: #fff;
}

.lecture-notes__ambitusClefTitle {
  color: var(--lecture-notes-ink);
  font-size: 0.92rem;
  font-weight: 900;
}

.lecture-notes__ambitusFrameHeader {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.lecture-notes__ambitusFrameActions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-left: auto;
}

.lecture-notes__ambitusFrameActions .lecture-notes__miniButton--icon {
  width: 30px;
  height: 30px;
  min-width: 30px;
  padding: 0;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lecture-notes__ambitusFrameActions .lecture-notes__modeInlineIcon {
  width: 14px;
  height: 14px;
}

.lecture-notes__ambitusAbc {
  min-height: 118px;
  width: calc(100% + 32px);
  margin-left: -16px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  overflow: hidden;
}

.lecture-notes__ambitusAbc svg {
  width: 100%;
  max-width: none;
  height: auto;
  display: block;
  margin: 0;
  transform: scale(1.1);
  transform-origin: center top;
}

.lecture-notes__ambitusAbc .abcjs-note {
  transition: opacity 140ms ease, filter 140ms ease;
  outline: none;
}

.lecture-notes__ambitusAbc .abcjs-note path,
.lecture-notes__ambitusAbc .abcjs-note ellipse {
  fill: #111 !important;
  stroke: #111 !important;
}

.lecture-notes__ambitusHitbox {
  pointer-events: all;
  fill: transparent;
  stroke: none;
}

.lecture-notes__ambitusAbc .abcjs-note.is-muted {
  opacity: 0.28;
}

.lecture-notes__ambitusAbc .abcjs-note.is-active {
  opacity: 1;
}

.lecture-notes__ambitusLegend {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 3px;
  margin-top: -14px;
}

.lecture-notes__ambitusLabel,
.lecture-notes__ambitusFallbackNote {
  padding: 6px 3px;
  border-radius: 7px;
  cursor: pointer;
  color: var(--lecture-notes-soft-ink);
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.1;
}

.lecture-notes__ambitusLabel.is-active,
.lecture-notes__ambitusFallbackNote.is-active {
  background: #e9f2ff;
  border-color: #c6ddff;
  color: #1f5fae;
}

.lecture-notes__ambitusLabel.is-muted,
.lecture-notes__ambitusFallbackNote.is-muted {
  background: rgba(255, 255, 255, 0.68);
  color: #a0a8b5;
}

.lecture-notes__ambitusEmpty {
  padding: 18px;
  border-radius: 16px;
  background: #f9fbff;
  color: var(--lecture-notes-soft-ink);
  text-align: center;
  font-weight: 700;
  border: 1px dashed #d8dee8;
}

.lecture-notes-abc--scroll {
  width: 100%;
  max-width: none;
  min-height: 188px;
  height: 188px;
  padding: 0;
  overflow: hidden;
  justify-content: center;
  align-items: center;
}

.lecture-notes__scrollViewport {
  position: relative;
  width: 100%;
  min-height: 188px;
  height: 188px;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 0;
  box-sizing: border-box;
}

.lecture-notes__scrollTrack {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translate3d(0, -50%, 0);
  will-change: transform;
}

.lecture-notes__scrollTrack svg {
  display: block;
  max-height: none;
  width: auto;
  height: auto;
}

.lecture-notes__scrollTrack .abcjs-note {
  transition: opacity 140ms ease, filter 140ms ease;
}

.lecture-notes__scrollTrack .abcjs-note.is-past {
  opacity: 0.38;
}

.lecture-notes__scrollTrack .abcjs-note.is-ok {
  opacity: 0.72;
}

.lecture-notes__scrollTrack .abcjs-note.is-ok path,
.lecture-notes__scrollTrack .abcjs-note.is-ok ellipse {
  fill: #98d9a6 !important;
  stroke: #98d9a6 !important;
}

.lecture-notes__scrollTrack .abcjs-note.is-ko {
  opacity: 0.72;
}

.lecture-notes__scrollTrack .abcjs-note.is-ko path,
.lecture-notes__scrollTrack .abcjs-note.is-ko ellipse {
  fill: #ef9a9a !important;
  stroke: #ef9a9a !important;
}

.lecture-notes__scrollTrack .abcjs-note.is-current {
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(47, 123, 229, 0.28));
}

.lecture-notes__scrollTrack .abcjs-note.is-current path,
.lecture-notes__scrollTrack .abcjs-note.is-current ellipse {
  fill: #2f7be5 !important;
  stroke: #2f7be5 !important;
}

.lecture-notes-flying-note {
  position: absolute;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  line-height: 1;
}

.lecture-notes-explode {
  animation: lecture-notes-explode 0.25s ease-out forwards;
}

.lecture-notes--scroll .lecture-notes__stage,
.lecture-notes--scroll .lecture-notes__duoStage {
  overflow: hidden;
}

.lecture-notes--duo .lecture-notes__main {
  gap: 10px;
}

.lecture-notes--duo .lecture-notes__duo {
  gap: 0;
  overflow: hidden;
  border: 1px solid #e4ebf3;
  border-radius: 14px;
  background: #fff;
}

.lecture-notes--duo .lecture-notes__duoPane {
  min-height: 0;
  border: 0;
  border-radius: 0;
  padding: 12px;
  background: var(--lecture-notes-player-surface);
}

.lecture-notes--duo .lecture-notes__duoPane + .lecture-notes__duoPane {
  border-left: 1px solid #e4ebf3;
}

.lecture-notes--duo .lecture-notes__duoStage {
  min-height: 280px;
}

.lecture-notes--duo .lecture-notes-abc--scroll,
.lecture-notes--duo .lecture-notes__scrollViewport {
  min-height: 160px;
  height: 160px;
}

.lecture-notes--scroll .lecture-notes-abc,
.lecture-notes--scroll .lecture-notes-abc--duo {
  width: 100%;
  max-width: none;
  padding: 0;
}

.lecture-notes--duo .lecture-notes__keyboard--duo {
  grid-template-columns: repeat(7, minmax(0, 66px));
  width: auto;
  max-width: 100%;
  justify-self: center;
}

@keyframes lecture-notes-explode {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(2.3);
    opacity: 0;
  }
}

@keyframes lecture-notes-confetti {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(180px) rotate(250deg);
    opacity: 0;
  }
}

@media (max-width: 900px) {
  .lecture-notes__duo {
    grid-template-columns: 1fr;
  }

  .lecture-notes--duo .lecture-notes__duoPane + .lecture-notes__duoPane {
    border-left: 0;
    border-top: 1px solid #e4ebf3;
  }
}

@media (max-width: 760px) {
  .lecture-notes {
    --lecture-notes-content-width: min(100%, calc(100vw - 20px));
  }

  .lecture-notes__main {
    padding: 14px;
  }

  .lecture-notes__toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "meta group"
      "quiz quiz";
    gap: 8px;
    align-items: center;
    min-height: 0;
  }

  .lecture-notes__toolbarMeta {
    gap: 8px;
    grid-area: meta;
  }

  .lecture-notes__toolbarGroup {
    gap: 8px;
    grid-area: group;
  }

  .lecture-notes__quizBar {
    grid-area: quiz;
    min-width: 0;
    margin: 0 auto;
  }

  .lecture-notes__quizClock {
    min-width: 58px;
    font-size: 1.5rem;
  }

  .lecture-notes__fab {
    width: auto;
    padding: 10px 12px;
  }

  .lecture-notes__modeButton {
    min-width: 0;
  }

  .lecture-notes__duoToggle {
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    padding: 0;
    border-radius: 999px;
  }

  .lecture-notes__duoToggle .lecture-notes__modeButtonText {
    display: none;
  }

  .lecture-notes__duoToggle [data-role="duo-toggle-label"] {
    gap: 0;
  }

  .lecture-notes__modeMenu {
    left: auto;
    right: 0;
    width: min(92vw, 360px);
    max-width: calc(100vw - 20px);
    min-width: 0;
  }

  .lecture-notes__stage {
    min-height: 228px;
  }

  .lecture-notes__keyboard,
  .lecture-notes__keyboard--duo {
    grid-template-columns: repeat(auto-fit, minmax(56px, 1fr));
  }
}