/* A narrated lesson (lessons/show, lesson_player_controller.js): one slide at a time, captions under it, controls. */
.lesson-player { max-width: 860px; margin: 0 auto; gap: 14px; }
.lesson-player__bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.lesson-player__title { font-weight: 700; display: flex; align-items: center; gap: 8px; }
.lesson-player__count { font-size: 14px; color: var(--text-muted); font-weight: 600; }
.lesson-player__stage { min-height: 340px; display: flex; align-items: center; justify-content: center; padding: 32px 28px; border-radius: 24px;
                        background: var(--card); border: 1px solid var(--line); }
.lesson-player__caption { margin: 0; min-height: 3.2em; padding: 10px 16px; border-radius: 14px; background: var(--ink); color: var(--paper);
                          font-size: 17px; line-height: 1.5; text-align: center; }
.lesson-player__caption[hidden] { display: block; visibility: hidden; }
.lesson-player__controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; }
.lesson-player__btn { min-height: 44px; padding: 0 16px; border-radius: var(--radius-pill); border: 1px solid var(--line-strong); background: var(--card);
                      color: var(--ink); font-weight: 600; font-size: 15px; }
.lesson-player__btn:disabled { opacity: .45; }
.lesson-player__btn--main { min-width: 150px; background: var(--ink); color: var(--paper); border-color: var(--ink); }
.lesson-player__chip { min-height: 36px; padding: 0 12px; border-radius: var(--radius-pill); border: 1px solid var(--line); background: transparent;
                       color: var(--text-muted); font-size: 13px; font-weight: 600; }
.lesson-player__chip[aria-pressed="true"] { background: var(--sand); color: var(--ink); }
.lesson-player__keys { text-align: center; }

.lesson-slide { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.lesson-slide__eyebrow { font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--clay); font-weight: 700; }
:lang(ar) .lesson-slide__eyebrow, :lang(fa) .lesson-slide__eyebrow { letter-spacing: 0; }
.lesson-slide__title { margin: 0; font-family: var(--font-serif); font-weight: 400; font-size: 44px; line-height: 1.15; }
.lesson-slide__heading { margin: 0; font-family: var(--font-serif); font-weight: 400; font-size: 32px; line-height: 1.2; }
.lesson-slide__text { margin: 0; font-size: 22px; line-height: 1.6; max-width: 34em; text-wrap: pretty; }
.lesson-slide__sentence { font-size: 40px; line-height: 1.5; }
.lesson-slide__reading { font-size: 18px; color: var(--text-muted); }
.lesson-slide__meaning { margin: 0; font-size: 20px; }
.lesson-slide__note { margin: 0; font-size: 16px; color: var(--text-muted); max-width: 32em; }
.lesson-slide__tips { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; text-align: start; max-width: 36em; }
.lesson-slide__tips li { padding: 10px 14px; border-radius: 12px; background: var(--sand); font-size: 17px; line-height: 1.5; }
.lesson-slide__table-wrap { max-width: 100%; overflow-x: auto; }
.lesson-slide__table { border-collapse: collapse; font-size: 17px; }
.lesson-slide__table th { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); text-align: start; padding: 6px 14px; }
.lesson-slide__table td { padding: 8px 14px; border-top: 1px solid var(--line); text-align: start; }
.lesson-slide__table .ar { font-size: 22px; }
.lesson-slide__check { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.lesson-slide__gap, .lesson-slide__prompt { margin: 0; font-size: 28px; line-height: 1.5; }
.lesson-slide__blank { display: inline-block; min-width: 3ch; padding: 0 4px; border-bottom: 2px solid var(--clay); font-weight: 700; }
.lesson-slide__check .drill__choices { width: 100%; max-width: 640px; }
.lesson-slide__feedback { width: 100%; max-width: 640px; padding: 12px 16px; border-radius: 14px; text-align: start; }
.lesson-slide__feedback p { margin: 4px 0 0; }
.lesson-slide__feedback.is-right { background: var(--green-soft); }
.lesson-slide__feedback.is-wrong { background: var(--clay-soft); }
.lesson-slide__score { margin: 0; font-size: 20px; font-weight: 700; }
.lesson-slide__actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.grammar__play { margin-top: 8px; display: inline-flex; gap: 6px; align-items: center; }

@media (max-width: 640px) {
  .lesson-player__stage { min-height: 300px; padding: 22px 16px; }
  .lesson-slide__title { font-size: 32px; }
  .lesson-slide__text { font-size: 19px; }
  .lesson-slide__sentence { font-size: 30px; }
}
.lesson-slide__target { padding: 0 6px; border-radius: 8px; background: var(--peach); font-weight: 700; }