.study-status { margin: 0 0 22px; padding: 18px 22px; border-left: 4px solid #b7dd45; }
.study-status strong { display: block; color: #073f46; font-size: 15px; }
.study-status p, .study-completion-hint { color: #355255; font-size: 14px; line-height: 1.65; }
.study-status p { margin: 8px 0; }
.study-status .text-link { margin-right: 18px; min-height: 40px; white-space: normal; text-align: left; }
.study-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 18px; }
.study-actions a { white-space: normal; }
.study-completion-hint { margin: 12px 0 0; }
.study-legacy-list { display: grid; gap: 8px; max-height: 45vh; overflow: auto; }
.study-legacy-list label { display: flex; gap: 10px; align-items: start; padding: 10px; font-size: 15px; line-height: 1.5; }
.study-legacy-list input { margin-top: 4px; accent-color: #073f46; }
.study-note-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 16px; line-height: 1.75; }
.study-notes { display: grid; gap: 16px; margin-top: 20px; }
#study-note { display: block; width: 100%; min-height: 140px; margin: 12px 0; padding: 12px; font: inherit; line-height: 1.6; border: 1px solid #bfd1cf; border-radius: 10px; resize: vertical; }
.calendar-event { overflow: hidden; text-overflow: ellipsis; }
.chapter-audio { padding: 22px; border-top: 1px solid #dce6e4; background: #f2f7f5; color: #12383d; }
.chapter-audio h3 { font-size: 21px; margin: 0 0 8px; }
.chapter-audio p { font-size: 15px; line-height: 1.7; }
.chapter-audio audio { display: block; width: 100%; margin: 16px 0; }
.chapter-audio-select { display: grid; gap: 8px; font-size: 14px; font-weight: 600; }
.chapter-audio select { width: 100%; min-width: 0; max-width: 100%; min-height: 44px; border: 1px solid #adc6c2; padding: 10px; border-radius: 8px; background: white; color: #12383d; }
.chapter-audio-current { font-weight: 600; }
.chapter-audio-transcript { margin-top: 20px; }
.chapter-audio-transcript summary { cursor: pointer; font-weight: 700; padding: 12px 0; }
.chapter-audio-transcript section { border-top: 1px solid #cdddda; padding: 14px 0; }
.chapter-audio-transcript h4 { line-height: 1.5; font-size: 16px; }
.chapter-audio :focus-visible, .study-status :focus-visible, .study-legacy-list :focus-visible, #study-note:focus-visible { outline: 3px solid #087c80; outline-offset: 3px; }
@media (max-width: 600px) {
  .topbar__left, .breadcrumbs, .lesson-topline__left, .lesson-topline__left > div { min-width: 0; }
  .topbar__left { flex: 1; overflow: hidden; }
  .topbar__actions { flex-shrink: 0; }
  .breadcrumbs strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .lesson-topline__left { max-width: 100%; }
  .lesson-topline__left strong { overflow-wrap: anywhere; }
  .lesson-content__meta { flex-wrap: wrap; }
  .chapter-audio-transcript .text-link { white-space: normal; text-align: left; }
  .study-status, .chapter-audio { padding: 16px; }
  .study-status .text-link { display: block; margin: 6px 0; }
  .composer__actions { gap: 12px; flex-wrap: wrap; }
  .calendar-day { min-width: 0; }
  .calendar-event { max-width: 100%; font-size: 10px; }
  .chapter-audio h3 { font-size: 19px; }
}