.public-video-lesson { padding-block: 30px 72px; }
.public-video-breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; color: var(--lp-muted); font-size: 13px; line-height: 1.6; margin-bottom: 28px; }
.public-video-breadcrumbs a { color: var(--lp-primary-deep); }
.public-video-heading { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 30px; align-items: start; margin-bottom: 30px; }
.public-video-eyebrow { margin: 0 0 10px; color: var(--lp-primary-deep); font-size: 12px; font-weight: 800; line-height: 1.5; letter-spacing: .07em; text-transform: uppercase; }
.public-video-heading h1 { max-width: 20ch; margin: 0 0 16px; font-size: clamp(30px, 3.5vw, 48px); line-height: 1.12; letter-spacing: -.035em; text-wrap: balance; }
.public-video-lead { max-width: 68ch; margin: 0; color: var(--lp-muted); font-size: 16px; line-height: 1.65; }
.public-video-author { display: flex; gap: 14px; align-items: center; padding: 16px 18px; border: 1px solid var(--lp-line); border-radius: 16px; background: var(--lp-surface); color: var(--lp-ink); text-decoration: none; }
.public-video-author .instructor-photo { width: 64px; height: 74px; border-radius: 12px; overflow: hidden; flex: 0 0 64px; }
.public-video-author .instructor-photo :is(picture,img) { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.public-video-author > span { display: grid; gap: 5px; font-size: 13px; line-height: 1.4; }
.public-video-author strong { font-size: 16px; }
.public-video-author > span > span:last-child { color: var(--lp-primary-deep); font-weight: 700; }
.public-video-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(270px, 330px); gap: 24px; align-items: start; }
.public-video-main { min-width: 0; }
.public-video-screen { position: relative; overflow: hidden; aspect-ratio: 16 / 9; border-radius: 20px; background: #101329; box-shadow: var(--lp-shadow-soft); }
.public-video-poster { display: block; width: 100%; height: 100%; object-fit: contain; }
.public-video-screen iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.public-video-screen .external-media-placeholder { position: absolute; inset: 0; display: grid; place-items: center; min-height: 0; border: 0; border-radius: 0; background: rgba(16,19,41,.93); padding: clamp(15px, 3vw, 30px); }
.public-video-screen .external-media-placeholder strong { color: #fff; font-size: clamp(16px, 1.7vw, 23px); line-height: 1.3; }
.public-video-screen .external-media-placeholder p { color: #d2d4e5; font-size: 14px; line-height: 1.5; }
.public-video-screen .external-media-actions :is(a,button) { min-height: 44px; font-size: 13px; }
.public-video-screen .external-media-actions a { display: inline-flex; align-items: center; justify-content: center; padding: 12px 18px; border-radius: 9px; background: var(--lp-primary-deep); color: #fff; font-weight: 750; text-decoration: none; }
.public-video-noscript { position: absolute; inset: auto 16px 12px; margin: 0; padding: 12px; border-radius: 8px; color: #fff; background: #101329; font-size: 14px; line-height: 1.5; }
.public-video-player-footer { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: center; padding-block: 16px; border-bottom: 1px solid var(--lp-line); }
.public-video-player-footer p { margin: 0; color: var(--lp-muted); font-size: 14px; line-height: 1.5; }
.public-video-player-footer strong { color: var(--lp-ink); font-variant-numeric: tabular-nums; }
.public-video-player-footer a { color: var(--lp-primary-deep); font-size: 14px; font-weight: 700; }
.public-video-current { padding: 12px 16px; border-radius: 10px; background: var(--lp-surface-soft); color: var(--lp-ink); font-size: 14px; line-height: 1.5; }
.public-video-topics { margin-top: 24px; }
.public-video-topics h2 { margin: 0 0 14px; font-size: 20px; line-height: 1.3; }
.public-video-topics ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.public-video-topics li { padding: 8px 12px; border: 1px solid var(--lp-line); border-radius: 8px; color: var(--lp-ink); background: var(--lp-surface); font-size: 14px; line-height: 1.45; }
.public-video-chapters { min-width: 0; padding: 20px; border: 1px solid var(--lp-line); border-radius: 18px; background: var(--lp-surface); }
.public-video-chapters h2 { margin: 0 0 10px; font-size: 23px; line-height: 1.2; }
.public-video-chapters header > p:last-child { margin: 0 0 16px; color: var(--lp-muted); font-size: 14px; line-height: 1.5; }
.public-video-chapters ol { list-style: none; padding: 0; margin: 0; }
.public-video-chapters li + li { border-top: 1px solid var(--lp-line); }
.public-video-chapters a { display: grid; grid-template-columns: 3.5em minmax(0, 1fr); gap: 10px; align-items: start; min-height: 44px; padding: 12px 6px; border-radius: 6px; color: var(--lp-ink); text-decoration: none; font-size: 14px; line-height: 1.45; overflow-wrap: anywhere; }
.public-video-chapters a > span:first-child { color: var(--lp-primary-deep); font-variant-numeric: tabular-nums; font-weight: 700; }
.public-video-chapters a[aria-current="true"] { background: var(--lp-surface-soft); box-shadow: inset 3px 0 var(--lp-primary); }
.public-video-chapters a:hover { background: var(--lp-surface-soft); }
.public-video-next { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, .7fr); gap: 30px; margin-top: 40px; padding: 30px; border: 1px solid var(--lp-line); border-radius: 20px; background: var(--lp-surface); }
.public-video-next h2 { margin: 0 0 14px; max-width: 27ch; font-size: clamp(24px, 2.5vw, 30px); line-height: 1.2; letter-spacing: -.02em; }
.public-video-next p { max-width: 58ch; color: var(--lp-muted); font-size: 15px; line-height: 1.65; }
.public-video-next aside { border-left: 1px solid var(--lp-line); padding-left: 30px; }
.public-video-next aside h3 { margin: 0; font-size: 20px; line-height: 1.25; }
.public-video-next aside a { color: var(--lp-primary-deep); font-weight: 700; }
.public-video-button { display: inline-flex; align-items: center; min-height: 48px; padding: 12px 18px; border-radius: 9px; background: var(--lp-primary-deep); color: #fff; font-size: 14px; line-height: 1.4; font-weight: 700; text-decoration: none; }
.public-video-more { margin-top: 36px; }
.public-video-more h2 { margin: 0 0 18px; font-size: 25px; line-height: 1.25; }
.public-video-more ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 0; padding: 0; list-style: none; }
.public-video-more a { display: grid; gap: 12px; height: 100%; padding: 20px; border: 1px solid var(--lp-line); border-radius: 14px; color: var(--lp-ink); background: var(--lp-surface); text-decoration: none; }
.public-video-more strong { font-size: 17px; line-height: 1.35; }
.public-video-more a > span { color: var(--lp-primary-deep); font-size: 13px; line-height: 1.4; }
.public-video-lesson a:focus-visible { outline: 2px solid var(--lp-primary-deep); outline-offset: 4px; }
@media (max-width: 960px) {
  .public-video-heading { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .public-video-author { justify-self: start; }
  .public-video-layout { grid-template-columns: minmax(0, 1fr); }
  .public-video-chapters ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
}
@media (max-width: 600px) {
  .public-video-lesson { padding-block: 20px 48px; }
  .public-video-breadcrumbs { margin-bottom: 20px; }
  .public-video-heading h1 { font-size: 31px; }
  .public-video-screen { border-radius: 12px; aspect-ratio: auto; min-height: 245px; }
  .public-video-poster { aspect-ratio: 16 / 9; }
  .public-video-chapters { padding: 18px; }
  .public-video-chapters ol { grid-template-columns: minmax(0, 1fr); }
  .public-video-next { grid-template-columns: minmax(0, 1fr); padding: 22px; gap: 24px; }
  .public-video-next aside { border-left: 0; border-top: 1px solid var(--lp-line); padding: 24px 0 0; }
  .public-video-more ul { grid-template-columns: minmax(0, 1fr); }
}