.subtitle-study {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  margin: 8px 0 0;
  padding: 12px 14px 14px;
  box-sizing: border-box;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  background: #f8fafc;
  color: #0f172a;
}

.subtitle-study[hidden] {
  display: none !important;
}

.subtitle-study-methods {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.subtitle-study-methods button,
.subtitle-study-reveal,
#subtitle-study-toggle,
#practice-study-toggle {
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #fff;
  color: #0f766e;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.subtitle-study-methods button {
  min-height: 36px;
  padding: 0 10px;
}

.subtitle-study-methods button.is-on,
#subtitle-study-toggle.is-on,
#practice-study-toggle.is-on {
  border-color: transparent;
  background: linear-gradient(135deg, #0d9488, #2dd4bf);
  color: #fff;
}

#subtitle-study-toggle,
#practice-study-toggle {
  height: 32px;
  padding: 0 12px;
}

.subtitle-study-hint,
.subtitle-study-en,
.subtitle-study-zh {
  margin: 0;
  text-align: center;
}

.subtitle-study-hint {
  color: #64748b;
  font-size: 13px;
  line-height: 1.5;
}

.subtitle-study-en {
  color: #0f172a;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}

.subtitle-study-zh {
  color: #334155;
  font-size: 15px;
  line-height: 1.5;
}

.subtitle-study-gloss {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 10px;
}

.subtitle-study-chunk {
  display: inline-flex;
  align-items: flex-end;
  max-width: 100%;
}

.subtitle-study-word {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: default;
}

.subtitle-study-ipa {
  min-height: 16px;
  color: #64748b;
  font-size: 11px;
  line-height: 16px;
  white-space: nowrap;
}

.subtitle-study-token {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 8px;
  color: #0f172a;
  font-size: 16px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}

.subtitle-study-word.is-only .subtitle-study-token { border-radius: 12px; }
.subtitle-study-word.is-start .subtitle-study-token { border-radius: 12px 0 0 12px; }
.subtitle-study-word.is-end .subtitle-study-token { border-radius: 0 12px 12px 0; }
.subtitle-study-word.is-mid .subtitle-study-token { border-radius: 0; }

.subtitle-study-chunk.is-c0 .subtitle-study-token { background: #fde68a; }
.subtitle-study-chunk.is-c1 .subtitle-study-token { background: #fecaca; }
.subtitle-study-chunk.is-c2 .subtitle-study-token { background: #bfdbfe; }
.subtitle-study-chunk.is-c3 .subtitle-study-token { background: #99f6e4; }

.subtitle-study-pos {
  min-height: 16px;
  color: #0f766e;
  font-size: 12px;
  font-weight: 700;
  line-height: 16px;
  white-space: nowrap;
}

.subtitle-study-gloss-zh {
  min-height: 18px;
  color: #475569;
  font-size: 13px;
  line-height: 18px;
  white-space: nowrap;
}

.subtitle-study-reveal,
.subtitle-study-mic {
  align-self: center;
}

.subtitle-study-reveal {
  min-height: 32px;
  padding: 0 14px;
}

.subtitle-study-mic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: #0f766e;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
}

body.subtitle-study-live #lyric-stage {
  display: none !important;
}

body.focus-mode.subtitle-study-on .shell {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 26vw) !important;
}

body.focus-mode.subtitle-study-on .transcript {
  min-width: 280px !important;
}

body.focus-mode.subtitle-study-on .main .player-wrap > .caption-bar,
body.focus-mode.subtitle-study-on .main .player-wrap > .vrp-control-dock,
body.focus-mode.subtitle-study-on #subtitle-study-host,
body.focus-mode.subtitle-study-on .subtitle-study {
  width: 100% !important;
  max-width: none !important;
}

body.practice-focus-active.subtitle-study-on .practice-grid,
body.practice-focus-active.subtitle-study-on.mode-dialogue .practice-grid,
body.practice-focus-active.subtitle-study-on.mode-shadowing .practice-grid {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 24vw) !important;
}

.practice-left > #subtitle-study-host,
.subtitle-study {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  flex: 0 0 auto;
}