:root {
  --recording-surface: #fff;
}

:root[data-a2-mode="night"] {
  --recording-surface: #11181e;
}

[data-a2-device-root="true"][data-a2-recording-open="true"] {
  background-color: var(--recording-surface) !important;
}

.mx-surface.recording-scroll {
  --recording-ink: #1d2a30;
  --recording-muted: #606c74;
  --recording-control: #f2f4f5;
  --recording-line: #e9edf0;
  --recording-accent: #5937d4;
  --recording-selected: #f1ecff;
  --recording-header-ink: #111827;
  --recording-header-control: #fff;
  --recording-header-border: rgba(17, 24, 39, .035);
  --recording-header-shadow: 0 4px 10px rgba(15, 23, 42, .045), inset 0 1px 0 rgba(255, 255, 255, .96);
  --recording-title-bg: #f7f7f7;
  background: var(--recording-surface);
  overflow-y: auto;
  overscroll-behavior-y: none;
  scrollbar-width: none;
}

.recording-scroll::-webkit-scrollbar { display: none; }

.mx-night .recording-scroll {
  --recording-ink: #f4f6f6;
  --recording-muted: #aebac3;
  --recording-control: #222c35;
  --recording-line: #2d3740;
  --recording-accent: #c9b7ff;
  --recording-selected: #332651;
  --recording-header-ink: #e7eef8;
  --recording-header-control: #172231;
  --recording-header-border: rgba(255, 255, 255, .075);
  --recording-header-shadow: 0 5px 12px rgba(0, 0, 0, .16), inset 0 1px 0 rgba(255, 255, 255, .06);
  --recording-title-bg: rgba(255, 255, 255, .05);
}

.recorded-course {
  min-height: 100%;
  background: var(--recording-surface);
  color: var(--recording-ink);
  -webkit-user-select: none;
  user-select: none;
}

.recorded-course--lesson {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.recording-header {
  position: sticky;
  z-index: 2;
  top: 0;
  padding-top: calc(env(safe-area-inset-top, 0px) + 39px);
  background: var(--recording-surface);
}

.recorded-course--lesson .recording-header { flex: none; }

.recording-toolbar, .recording-feed {
  max-width: 760px;
  margin: 0 auto;
}

.recording-toolbar {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 40px;
  align-items: center;
  gap: 10px;
  padding: 0 22px 13px;
}

.recording-toolbar h1 {
  justify-self: center;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 40px;
  margin: 0;
  padding: 4px 14px 4px 6px;
  border-radius: 999px;
  background: var(--recording-title-bg);
  color: var(--recording-header-ink);
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
}

.recording-title-icon {
  position: relative;
  flex: 0 0 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--recording-header-control);
  overflow: hidden;
}

.recording-title-icon img {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.recording-round, .recording-lesson-button, .recording-lesson-title-button, .recording-like, .recording-speeds button {
  appearance: none;
  border: 0;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.recording-round {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--recording-header-border);
  border-radius: 50%;
  background: var(--recording-header-control);
  color: var(--recording-header-ink);
  box-shadow: var(--recording-header-shadow);
}

.recording-round[aria-expanded="true"], .recording-speeds button[aria-pressed="true"] {
  color: var(--recording-accent);
  background: var(--recording-selected);
}

.recorded-course :is(button, summary):focus-visible {
  outline: 2px solid var(--recording-accent);
  outline-offset: 3px;
}

.recording-settings { position: relative; }

.recording-options {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: min(280px, calc(100vw - 36px));
  padding: 14px;
  border: 1px solid var(--recording-line);
  border-radius: 16px;
  background: var(--recording-surface);
  box-shadow: 0 12px 32px rgba(13, 21, 32, .16);
  font-size: 14px;
}

.recording-options-title { margin-bottom: 10px; font-weight: 700; }
.recording-speeds { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 4px; }

.recording-speeds button {
  min-height: 40px;
  padding: 0 2px;
  border-radius: 8px;
  background: var(--recording-control);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

.recording-help { margin-top: 12px; border-top: 1px solid var(--recording-line); }
.recording-help summary { padding: 10px 0 2px; cursor: pointer; }
.recording-help p { margin: 6px 0 0; color: var(--recording-muted); line-height: 1.5; }

.recording-feed {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding-inline: 22px;
  padding-top: 12px;
  padding-bottom: calc(36px + env(safe-area-inset-bottom, 0px));
}

.recording-feed[hidden] { display: none; }

.recording-lesson {
  min-width: 0;
  border: 1px solid var(--recording-line);
  border-radius: 16px;
  background: var(--recording-surface);
  box-shadow: var(--recording-header-shadow);
}

.recording-lesson-button {
  display: block;
  width: 100%;
  padding: 0;
  border-radius: 15px;
  background: transparent;
  text-align: left;
}

.recording-cover {
  position: relative;
  display: grid;
  align-items: center;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: 15px 15px 0 0;
  background: #222736;
  color: #fff;
}

.recording-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.recording-cover-fallback {
  padding: 0 20px;
  font-size: clamp(17px, 4vw, 25px);
  font-weight: 750;
}

.recording-duration {
  position: absolute;
  right: 9px;
  bottom: 9px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 7px;
  border-radius: 6px;
  background: rgba(9, 12, 18, .82);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.recording-duration svg { display: block; }

.recording-caption {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
}

.recording-lesson-label {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

.recording-lesson-title-button {
  padding: 0;
  border-radius: 9px;
  background: transparent;
  text-align: left;
}

.recording-like {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0;
  border: 1px solid var(--recording-line);
  border-radius: 6px;
  background: var(--recording-surface);
  color: var(--recording-ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .05);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
}

.recording-like-action, .recording-like-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  padding-inline: 6px;
}

.recording-like-action svg { flex-shrink: 0; opacity: .6; }

.recording-like-count {
  border-inline-start: 1px solid var(--recording-line);
  padding-inline: 4px;
  color: var(--recording-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}

.recording-like[aria-pressed="false"]:not(:disabled):hover { background: var(--recording-control); }
.recording-like[aria-pressed="true"] { background: var(--recording-selected); color: var(--recording-accent); }
.recording-like[aria-pressed="true"] svg { opacity: 1; }
.recording-like:disabled { cursor: default; opacity: .65; }

.recording-lesson-number {
  display: grid;
  place-items: center;
  height: 22px;
  border-radius: 6px;
  background: var(--recording-selected);
  color: var(--recording-accent);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.recording-caption strong {
  overflow: hidden;
  font-size: 16px;
  line-height: 1.45;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.recording-feedback { display: block; padding: 0 12px 12px; color: var(--recording-muted); font-size: 13px; }

.recording-detail {
  --recording-chapter-space: 200px;
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  width: 100%;
  max-width: 760px;
  min-height: 0;
  margin: 0 auto;
  padding: 12px 22px max(12px, env(safe-area-inset-bottom, 0px));
}

.recording-player-stage {
  position: relative;
  align-self: center;
  flex: none;
  width: 100%;
  aspect-ratio: var(--recording-player-ratio);
  max-height: clamp(80px, calc(100% - var(--recording-chapter-space)), 58%);
  overflow: hidden;
  border-radius: 16px;
  background: #101217;
}

@supports (height: 1cqh) {
  .recording-detail { container-type: size; }
  .recording-player-stage {
    width: min(100%, calc(clamp(80px, 100cqh - var(--recording-chapter-space), 58cqh) * var(--recording-player-ratio)));
    max-height: none;
  }
}

.course-recording-player { position: absolute; inset: 0; background: #101217; color-scheme: dark; }
.course-recording-player video { display: block; object-fit: contain; }

.recording-player-message {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 10px;
  padding: 14px;
  background: #101217;
  color: #fff;
  text-align: center;
  font-size: 13px;
}

.recording-player-message button {
  padding: 7px 12px;
  border: 1px solid #606a79;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.recording-detail-title {
  display: flex;
  flex: none;
  align-items: flex-start;
  gap: 9px;
  margin-bottom: 13px;
}

.recording-detail-title .recording-lesson-number { flex: 0 0 28px; margin-top: 2px; }
.recording-detail-title h2 { min-width: 0; margin: 0; font-size: 18px; font-weight: 700; line-height: 1.42; overflow-wrap: anywhere; }
.recording-detail-title h2:focus { outline: none; }
.recording-player-notice { flex: none; display: block; margin-top: 7px; color: var(--recording-muted); font-size: 12px; }

.recording-chapters {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  min-height: 0;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--recording-line);
}

.recording-chapters-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.recording-chapters h3 { flex: none; margin: 0; font-size: 17px; line-height: 1.4; }
.recording-chapters-heading .recording-player-notice {
  flex: 0 1 auto;
  min-width: 0;
  margin-top: 0;
  overflow: hidden;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.recording-chapters > p { margin: 4px 0 10px; color: var(--recording-muted); font-size: 12px; line-height: 1.5; }

.recording-chapter-list {
  --recording-chapter-mask: linear-gradient(to bottom, transparent, #000 var(--recording-chapter-fade, 0px));
  display: grid;
  flex: 1 1 0;
  align-content: start;
  gap: 9px;
  min-height: 0;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior-y: contain;
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  list-style: none;
  -webkit-mask-image: var(--recording-chapter-mask);
  mask-image: var(--recording-chapter-mask);
}

.recording-chapter-list::-webkit-scrollbar { display: none; }
.recording-chapter-list:focus-visible { outline: 2px solid var(--recording-accent); outline-offset: -2px; }

@media (max-height: 580px) {
  .recording-detail { --recording-chapter-space: 216px; padding-top: 6px; }
  .recording-detail-title { margin-bottom: 8px; }
  .recording-chapters { margin-top: 12px; padding-top: 8px; }
  .recording-chapters > p { margin-bottom: 8px; }
}

.recording-chapter {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr) 14px;
  align-items: start;
  gap: 9px;
  width: 100%;
  padding: 11px;
  border: 1px solid var(--recording-line);
  border-radius: 12px;
  background: var(--recording-surface);
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.recording-chapter:hover:not(:disabled) { background: var(--recording-control); }
.recording-chapter[aria-current="true"] { border-color: var(--recording-accent); }
.recorded-course .recording-chapter:focus-visible { outline-offset: -3px; }
.recording-chapter:disabled { cursor: default; opacity: .7; }

.recording-chapter-time {
  padding: 3px 6px;
  border-radius: 6px;
  background: var(--recording-selected);
  color: var(--recording-accent);
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}

.recording-chapter-copy { display: grid; gap: 4px; min-width: 0; overflow-wrap: anywhere; }
.recording-chapter-copy strong { font-size: 14px; font-weight: 650; line-height: 1.4; }
.recording-chapter-copy > span { color: var(--recording-muted); font-size: 12px; line-height: 1.5; }
.recording-chapter-arrow { margin-top: 3px; color: var(--recording-muted); }