/* Wooshin Tutor lectures: compact course catalog, progress, and verified playback. */

.lecture-page,
.lecture-player-page {
  --lecture-brand: var(--brand, #087454);
  --lecture-brand-strong: #065f46;
  --lecture-brand-soft: #edf7f3;
  --lecture-ink: var(--text, #18211d);
  --lecture-muted: var(--text-2, #66736d);
  --lecture-line: var(--border, #dfe7e3);
  --lecture-surface: var(--surface, #fff);
  --lecture-subtle: var(--surface-subtle, #f4f7f5);
  width: min(100%, 1120px);
  min-width: 0;
  margin-inline: auto;
  color: var(--lecture-ink);
}

.lecture-page *,
.lecture-player-page * {
  box-sizing: border-box;
  min-width: 0;
}

.learning-section-tabs {
  display: flex;
  min-height: 46px;
  align-items: stretch;
  gap: 24px;
  margin: 0 0 26px;
  border-bottom: 1px solid var(--border, #dfe7e3);
}

.learning-section-tabs button {
  position: relative;
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  gap: 7px;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0 2px;
  color: var(--text-2, #66736d);
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
}

.learning-section-tabs button::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: transparent;
  content: "";
}

.learning-section-tabs button.active {
  color: var(--brand, #087454);
}

.learning-section-tabs button.active::after {
  background: currentColor;
}

.learning-section-tabs .icon {
  width: 18px;
  height: 18px;
}

.lecture-page-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.lecture-page-head > div {
  display: grid;
  gap: 4px;
}

.lecture-page-head .eyebrow,
.lecture-instructor-rail .eyebrow {
  color: var(--lecture-brand);
  font-size: 12px;
  font-weight: 700;
}

.lecture-page-head h1,
.lecture-course-hero h1 {
  margin: 0;
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 760;
  letter-spacing: 0;
  line-height: 1.25;
  word-break: keep-all;
}

.lecture-page-head p,
.lecture-course-hero p {
  margin: 0;
  color: var(--lecture-muted);
  font-size: 14px;
  line-height: 1.55;
}

.lecture-page-head .ghost,
.lecture-instructor-rail .ghost {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 7px;
  border-radius: 10px;
  white-space: nowrap;
}

.lecture-loading,
.lecture-empty {
  display: grid;
  min-height: 240px;
  place-items: center;
  align-content: center;
  gap: 9px;
  color: var(--lecture-muted);
  text-align: center;
}

.lecture-loading p,
.lecture-empty p,
.lecture-empty strong {
  margin: 0;
}

.lecture-empty > span {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 50%;
  background: var(--lecture-brand-soft);
  color: var(--lecture-brand);
}

.lecture-error {
  border-left: 3px solid var(--danger, #d6453d);
  padding: 8px 12px;
  color: var(--danger, #d6453d);
  font-size: 13px;
}

.lecture-instructor-groups {
  display: grid;
  gap: 40px;
}

.lecture-instructor-group {
  display: grid;
  gap: 14px;
}

.lecture-instructor-group-head {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding-inline: 8px;
}

.lecture-instructor-group-head .lecture-avatar {
  width: 64px;
  height: 64px;
  flex-basis: 64px;
  font-size: 22px;
}

.lecture-instructor-group-head > div {
  display: grid;
  gap: 2px;
}

.lecture-instructor-group-head > div > span {
  color: var(--lecture-brand);
  font-size: 11px;
  font-weight: 700;
}

.lecture-instructor-group-head h2,
.lecture-instructor-group-head p {
  margin: 0;
}

.lecture-instructor-group-head h2 {
  font-size: 20px;
  font-weight: 740;
}

.lecture-instructor-group-head p {
  color: var(--lecture-muted);
  font-size: 12px;
  line-height: 1.45;
}

.lecture-instructor-group-head > strong {
  display: grid;
  justify-items: end;
  color: var(--lecture-brand);
  font-size: 21px;
  line-height: 1;
}

.lecture-instructor-group-head > strong small {
  margin-top: 5px;
  color: var(--lecture-muted);
  font-size: 10px;
  font-weight: 600;
}

.lecture-catalog-list {
  display: grid;
  border-top: 1px solid var(--lecture-line);
}

.lecture-catalog-item {
  display: grid;
  grid-template-columns: 212px minmax(0, 1fr) 28px;
  align-items: center;
  gap: 22px;
  border-bottom: 1px solid var(--lecture-line);
  background: transparent;
  padding: 20px 8px;
  cursor: pointer;
}

.lecture-catalog-item:hover,
.lecture-catalog-item:focus-visible {
  background: var(--lecture-subtle);
  outline: none;
}

.lecture-course-cover {
  position: relative;
  display: grid;
  width: 100%;
  aspect-ratio: 16 / 9;
  place-items: center;
  overflow: hidden;
  border-radius: 10px;
  background: var(--lecture-brand-soft);
  color: var(--lecture-brand);
}

.lecture-course-cover > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lecture-course-cover > .icon {
  width: 34px;
  height: 34px;
}

.lecture-course-cover > span {
  position: absolute;
  right: 8px;
  bottom: 8px;
  min-height: 24px;
  border-radius: 6px;
  background: rgb(17 24 21 / 78%);
  padding: 4px 8px;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}

.lecture-catalog-copy {
  display: grid;
  gap: 7px;
}

.lecture-curriculum-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--lecture-muted);
  font-size: 11px;
}

.lecture-curriculum-kicker > span {
  color: var(--lecture-brand);
  font-weight: 700;
}

.lecture-curriculum-kicker > small::before {
  margin-right: 8px;
  color: #b6bfba;
  content: "\00b7";
}

.lecture-instructor-line {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--lecture-muted);
  font-size: 12px;
}

.lecture-instructor-line > span {
  color: var(--lecture-ink);
  font-weight: 700;
}

.lecture-instructor-line > small::before {
  margin-right: 7px;
  color: #a8b2ad;
  content: "\00b7";
}

.lecture-avatar {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  overflow: hidden;
  border-radius: 50%;
  background: var(--lecture-brand-soft);
  color: var(--lecture-brand);
  object-fit: cover;
  font-weight: 750;
}

.lecture-avatar.is-small {
  width: 24px;
  height: 24px;
  flex-basis: 24px;
  font-size: 11px;
}

.lecture-avatar.is-tiny {
  width: 28px;
  height: 28px;
  flex-basis: 28px;
  font-size: 11px;
}

.lecture-avatar.is-large {
  width: 92px;
  height: 92px;
  flex-basis: 92px;
  font-size: 32px;
}

.lecture-catalog-copy h2,
.lecture-catalog-copy h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 730;
  line-height: 1.35;
  word-break: keep-all;
}

.lecture-catalog-copy > p {
  display: -webkit-box;
  overflow: hidden;
  margin: 0;
  color: var(--lecture-muted);
  font-size: 13px;
  line-height: 1.5;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.lecture-course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  color: var(--lecture-muted);
  font-size: 12px;
}

.lecture-course-meta span + span::before {
  margin-right: 10px;
  color: #b6bfba;
  content: "\00b7";
}

.lecture-progress-line {
  width: min(100%, 380px);
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: #e7ece9;
}

.lecture-progress-line > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--lecture-brand);
}

.lecture-catalog-copy > small {
  color: var(--lecture-muted);
  font-size: 11px;
}

.lecture-row-chevron {
  color: #8e9993;
}

.lecture-row-chevron .icon {
  width: 20px;
  height: 20px;
}

.lecture-back {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 4px;
  margin-bottom: 16px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  padding: 0 8px 0 2px;
  color: var(--lecture-ink);
  font-weight: 680;
}

.lecture-back:hover {
  background: var(--lecture-subtle);
}

.lecture-detail-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.lecture-instructor-rail {
  position: sticky;
  top: 88px;
  display: grid;
  justify-items: start;
  gap: 8px;
  padding: 12px 0;
}

.lecture-instructor-rail h2,
.lecture-instructor-rail p {
  margin: 0;
}

.lecture-instructor-rail h2 {
  font-size: 21px;
  font-weight: 740;
}

.lecture-instructor-rail p {
  color: var(--lecture-muted);
  font-size: 13px;
  line-height: 1.55;
}

.lecture-curriculum-switcher {
  display: grid;
  width: 100%;
  gap: 4px;
  margin-top: 14px;
  border-top: 1px solid var(--lecture-line);
  padding-top: 14px;
}

.lecture-curriculum-switcher > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.lecture-curriculum-switcher > div strong {
  font-size: 12px;
}

.lecture-curriculum-switcher > div span {
  color: var(--lecture-muted);
  font-size: 10px;
}

.lecture-curriculum-switcher > button {
  display: grid;
  width: 100%;
  min-height: 0;
  gap: 2px;
  border: 0;
  border-left: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  padding: 9px 8px 9px 10px;
  color: var(--lecture-ink);
  text-align: left;
}

.lecture-curriculum-switcher > button:hover,
.lecture-curriculum-switcher > button.active {
  border-left-color: var(--lecture-brand);
  background: var(--lecture-subtle);
}

.lecture-curriculum-switcher > button > span {
  color: var(--lecture-brand);
  font-size: 9px;
  font-weight: 700;
}

.lecture-curriculum-switcher > button > strong {
  overflow: hidden;
  font-size: 12px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-curriculum-switcher > button > small {
  color: var(--lecture-muted);
  font-size: 9px;
}

.lecture-detail-main {
  display: grid;
  gap: 26px;
}

.lecture-course-hero {
  position: relative;
  display: grid;
  min-height: 220px;
  align-items: end;
  overflow: hidden;
  border-radius: 12px;
  background: var(--lecture-brand-soft);
  padding: 30px;
}

.lecture-course-hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lecture-course-hero.has-cover::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgb(9 24 18 / 82%) 100%);
  content: "";
}

.lecture-course-hero > div {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 7px;
}

.lecture-course-hero h1,
.lecture-course-hero p {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.lecture-course-hero.has-cover > div,
.lecture-course-hero.has-cover p {
  color: #fff;
}

.lecture-course-hero > div > span {
  font-size: 12px;
  font-weight: 700;
}

.lecture-progress-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-block: 1px solid var(--lecture-line);
}

.lecture-progress-summary > div {
  display: grid;
  gap: 2px;
  padding: 17px 12px;
  text-align: center;
}

.lecture-progress-summary > div + div {
  border-left: 1px solid var(--lecture-line);
}

.lecture-progress-summary strong {
  font-size: 20px;
  font-weight: 750;
}

.lecture-progress-summary span {
  color: var(--lecture-muted);
  font-size: 11px;
  overflow-wrap: anywhere;
}

.lecture-lesson-section,
.lecture-review-section {
  display: grid;
  gap: 14px;
}

.lecture-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.lecture-section-head > div {
  display: grid;
  gap: 3px;
}

.lecture-section-head h2,
.lecture-section-head p {
  margin: 0;
}

.lecture-section-head h2 {
  font-size: 20px;
  font-weight: 730;
}

.lecture-section-head p,
.lecture-section-head > span {
  color: var(--lecture-muted);
  font-size: 12px;
  line-height: 1.45;
}

.lecture-section-head > strong {
  flex: 0 0 auto;
  color: var(--lecture-brand);
  font-size: 20px;
  white-space: nowrap;
}

.lecture-lesson-list {
  display: grid;
  border-top: 1px solid var(--lecture-line);
}

.lecture-lesson-row {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 38px;
  min-height: 68px;
  align-items: center;
  gap: 10px;
  border: 0;
  border-bottom: 1px solid var(--lecture-line);
  border-radius: 0;
  background: transparent;
  padding: 10px 6px;
  color: var(--lecture-ink);
  text-align: left;
}

.lecture-lesson-row:hover {
  background: var(--lecture-subtle);
}

.lecture-lesson-number,
.lecture-lesson-play {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--lecture-line);
  border-radius: 50%;
  color: var(--lecture-muted);
  font-size: 12px;
  font-weight: 700;
}

.lecture-lesson-row.is-complete .lecture-lesson-number {
  border-color: transparent;
  background: var(--lecture-brand-soft);
  color: var(--lecture-brand);
}

.lecture-lesson-number .icon,
.lecture-lesson-play .icon {
  width: 15px;
  height: 15px;
}

.lecture-lesson-copy {
  display: grid;
  gap: 3px;
}

.lecture-lesson-copy strong {
  overflow: hidden;
  font-size: 14px;
  font-weight: 680;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-lesson-copy small {
  color: var(--lecture-muted);
  font-size: 11px;
}

.lecture-review-section {
  border-top: 1px solid var(--lecture-line);
  padding-top: 26px;
}

.lecture-review-locked {
  display: flex;
  align-items: center;
  gap: 13px;
  border-radius: 10px;
  background: var(--lecture-subtle);
  padding: 15px 16px;
  color: var(--lecture-muted);
}

.lecture-review-locked > .icon {
  width: 21px;
  height: 21px;
  flex: 0 0 21px;
  color: var(--lecture-brand);
}

.lecture-review-locked strong,
.lecture-review-locked p {
  margin: 0;
}

.lecture-review-locked strong {
  color: var(--lecture-ink);
  font-size: 14px;
}

.lecture-review-locked p {
  margin-top: 3px;
  font-size: 12px;
  line-height: 1.45;
}

.lecture-review-form {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px;
  border-bottom: 1px solid var(--lecture-line);
  padding: 0 0 18px;
}

.lecture-review-form label,
.lecture-manager-profile label,
.lecture-course-create label {
  display: grid;
  gap: 6px;
}

.lecture-review-form label > span,
.lecture-manager-profile label > span,
.lecture-course-create label > span {
  color: var(--lecture-muted);
  font-size: 12px;
  font-weight: 650;
}

.lecture-review-form .textarea {
  min-height: 76px;
  resize: vertical;
}

.lecture-review-list {
  display: grid;
}

.lecture-review-list article {
  display: grid;
  gap: 8px;
  border-bottom: 1px solid var(--lecture-line);
  padding: 15px 2px;
}

.lecture-review-list header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lecture-review-list header strong {
  font-size: 13px;
}

.lecture-review-list header span {
  color: #c78a05;
  font-size: 11px;
  letter-spacing: 0;
}

.lecture-review-list time {
  margin-left: auto;
  color: var(--lecture-muted);
  font-size: 11px;
}

.lecture-review-list article > p {
  margin: 0 0 0 36px;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
}

/* Player */
.lecture-player-page {
  width: min(100%, 1280px);
}

.lecture-player-head {
  display: grid;
  min-height: 56px;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.lecture-player-head > button {
  display: grid;
  width: 40px;
  min-width: 40px;
  height: 40px;
  min-height: 40px;
  place-items: center;
  border: 0;
  border-radius: 9px;
  background: transparent;
}

.lecture-player-head > button:hover {
  background: var(--lecture-subtle);
}

.lecture-player-head > div {
  display: grid;
  gap: 2px;
}

.lecture-player-head span {
  color: var(--lecture-muted);
  font-size: 11px;
}

.lecture-player-head strong {
  overflow: hidden;
  font-size: 16px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-player-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 292px;
  gap: 18px;
  align-items: start;
}

.lecture-video-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 10px;
  background: #050706;
  color: #fff;
}

.lecture-video-stage iframe,
#lectureYoutubePlayer {
  width: 100%;
  height: 100%;
  border: 0;
}

.lecture-metadata-player {
  position: fixed;
  z-index: -1;
  top: 0;
  left: -10000px;
  width: 240px;
  height: 200px;
  overflow: hidden;
  opacity: 0.01;
  pointer-events: none;
}

.lecture-video-error {
  position: absolute;
  z-index: 8;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 9px;
  padding: 24px;
  background: #111714;
  color: #fff;
  text-align: center;
}

.lecture-video-error[hidden] {
  display: none;
}

.lecture-video-error > span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: rgb(255 255 255 / 10%);
  color: #f4c86a;
}

.lecture-video-error > span .icon {
  width: 21px;
  height: 21px;
}

.lecture-video-error strong {
  font-size: 17px;
}

.lecture-video-error p {
  max-width: 420px;
  margin: 0;
  color: rgb(255 255 255 / 70%);
  font-size: 13px;
  line-height: 1.55;
}

.lecture-video-error button {
  min-height: 38px;
  margin-top: 4px;
  border: 1px solid rgb(255 255 255 / 20%);
  border-radius: 9px;
  background: #fff;
  color: #111714;
  padding: 0 16px;
  font-weight: 700;
}

.lecture-video-stage.has-player-error .lecture-video-watermark,
.lecture-video-stage.has-player-error .lecture-center-play,
.lecture-video-stage.has-player-error .lecture-player-controls {
  visibility: hidden;
}

.lecture-video-watermark {
  position: absolute;
  z-index: 3;
  max-width: 54%;
  opacity: 0.24;
  color: #fff;
  font-size: clamp(9px, 1.2vw, 13px);
  line-height: 1.3;
  pointer-events: none;
  text-shadow: 0 1px 2px rgb(0 0 0 / 45%);
  transition: none;
}

.lecture-video-watermark[data-corner="0"] { top: 14%; left: 7%; }
.lecture-video-watermark[data-corner="1"] { top: 15%; right: 7%; text-align: right; }
.lecture-video-watermark[data-corner="2"] { right: 7%; bottom: 17%; text-align: right; }
.lecture-video-watermark[data-corner="3"] { bottom: 17%; left: 7%; }

.lecture-center-play {
  position: absolute;
  z-index: 4;
  top: 50%;
  left: 50%;
  display: grid;
  width: 58px;
  min-width: 58px;
  height: 58px;
  min-height: 58px;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 32%);
  border-radius: 50%;
  background: rgb(9 14 12 / 72%);
  color: #fff;
  transform: translate(-50%, -50%);
  backdrop-filter: blur(5px);
}

.lecture-center-play.is-playing {
  opacity: 0;
}

.lecture-center-play:hover,
.lecture-center-play:focus-visible {
  opacity: 1;
}

.lecture-center-play .icon {
  width: 25px;
  height: 25px;
}

.lecture-player-controls {
  position: absolute;
  z-index: 5;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: 38px auto minmax(80px, 1fr) auto 38px;
  min-height: 56px;
  align-items: center;
  gap: 8px;
  background: linear-gradient(180deg, transparent, rgb(0 0 0 / 84%));
  padding: 14px 12px 7px;
  font-size: 11px;
}

.lecture-player-controls button {
  display: grid;
  width: 36px;
  min-width: 36px;
  height: 36px;
  min-height: 36px;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #fff;
}

.lecture-player-controls button:hover {
  background: rgb(255 255 255 / 12%);
}

.lecture-player-controls input[type="range"] {
  width: 100%;
  min-height: 24px;
  accent-color: var(--lecture-brand);
}

.lecture-player-side {
  display: grid;
  gap: 16px;
  border-left: 1px solid var(--lecture-line);
  padding-left: 18px;
}

.lecture-speed-control,
.lecture-live-progress {
  display: grid;
  gap: 9px;
}

.lecture-speed-control > strong,
.lecture-live-progress > span {
  font-size: 13px;
  font-weight: 700;
}

.lecture-speed-control > div {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.lecture-speed-control button {
  min-height: 34px;
  border: 1px solid var(--lecture-line);
  border-radius: 8px;
  background: var(--lecture-surface);
  color: var(--lecture-muted);
  font-size: 11px;
  font-weight: 650;
}

.lecture-speed-control button.active {
  border-color: var(--lecture-brand);
  background: var(--lecture-brand-soft);
  color: var(--lecture-brand);
}

.lecture-speed-control small {
  color: var(--lecture-muted);
  font-size: 11px;
  line-height: 1.45;
}

.lecture-live-progress {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.lecture-live-progress > strong {
  color: var(--lecture-brand);
  font-size: 17px;
}

.lecture-live-progress > div {
  grid-column: 1 / -1;
  height: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: #e5ebe8;
}

.lecture-live-progress i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--lecture-brand);
}

.lecture-player-lessons {
  display: grid;
  max-height: min(56vh, 520px);
  overflow-y: auto;
  border-top: 1px solid var(--lecture-line);
  overscroll-behavior: contain;
}

.lecture-player-lessons button {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  min-height: 56px;
  align-items: center;
  gap: 8px;
  border: 0;
  border-bottom: 1px solid var(--lecture-line);
  border-radius: 0;
  background: transparent;
  padding: 8px 4px;
  color: var(--lecture-ink);
  text-align: left;
}

.lecture-player-lessons button.active {
  background: var(--lecture-brand-soft);
  color: var(--lecture-brand);
}

.lecture-player-lessons button > span {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  background: var(--lecture-subtle);
  font-size: 10px;
  font-weight: 700;
}

.lecture-player-lessons strong {
  overflow: hidden;
  font-size: 12px;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-player-lessons small {
  color: var(--lecture-muted);
  font-size: 10px;
}

/* Instructor manager */
.lecture-manager-page {
  display: grid;
  gap: 24px;
}

.lecture-manager-instructor-select {
  display: grid;
  grid-template-columns: auto minmax(240px, 420px);
  align-items: center;
  justify-content: end;
  gap: 12px;
  border-bottom: 1px solid var(--lecture-line);
  padding-bottom: 16px;
}

.lecture-manager-instructor-select > span {
  color: var(--lecture-muted);
  font-size: 12px;
  font-weight: 650;
}

.lecture-manager-profile,
.lecture-course-create {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  align-items: end;
  gap: 14px;
  border-block: 1px solid var(--lecture-line);
  padding: 20px 0;
}

.lecture-manager-profile > div {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lecture-manager-profile > div h2,
.lecture-course-create h2 {
  margin: 0;
  font-size: 18px;
}

.lecture-manager-profile-readonly {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.lecture-manager-profile-readonly > div > div {
  display: grid;
  gap: 3px;
}

.lecture-manager-profile-readonly > div span,
.lecture-course-create-title > span,
.lecture-manager-list-head span {
  color: var(--lecture-brand);
  font-size: 11px;
  font-weight: 700;
}

.lecture-manager-profile-readonly p,
.lecture-course-create-title p {
  margin: 0;
  color: var(--lecture-muted);
  font-size: 11px;
}

.lecture-manager-profile-readonly > strong {
  display: grid;
  justify-items: end;
  color: var(--lecture-brand);
  font-size: 22px;
}

.lecture-manager-profile-readonly > strong small {
  color: var(--lecture-muted);
  font-size: 10px;
}

.lecture-manager-profile .lecture-avatar {
  width: 56px;
  height: 56px;
  flex-basis: 56px;
  font-size: 20px;
}

.lecture-manager-profile .textarea {
  min-height: 48px;
  resize: vertical;
}

.lecture-course-create {
  grid-template-columns: minmax(170px, 0.8fr) repeat(3, minmax(0, 1fr)) minmax(0, 1.4fr) auto;
  border-top: 0;
  padding-top: 0;
}

.lecture-course-create-title {
  display: grid;
  align-self: center;
  gap: 3px;
}

.lecture-manager-list-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--lecture-line);
  padding-bottom: 12px;
}

.lecture-manager-list-head > div {
  display: grid;
  gap: 2px;
}

.lecture-manager-list-head h2,
.lecture-manager-list-head strong {
  margin: 0;
}

.lecture-manager-list-head h2 {
  font-size: 20px;
}

.lecture-manager-list-head > strong {
  color: var(--lecture-brand);
  font-size: 14px;
}

.lecture-manager-courses {
  display: grid;
  gap: 30px;
}

.lecture-manager-course {
  display: grid;
  gap: 18px;
  border-bottom: 1px solid var(--lecture-line);
  padding-bottom: 28px;
}

.lecture-manager-course > header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.lecture-manager-course > header > div:first-child {
  display: grid;
  gap: 3px;
}

.lecture-manager-course > header span {
  color: var(--lecture-brand);
  font-size: 11px;
  font-weight: 700;
}

.lecture-manager-course > header h2,
.lecture-manager-course > header p {
  margin: 0;
}

.lecture-manager-course > header h2 {
  font-size: 21px;
}

.lecture-manager-course > header p {
  color: var(--lecture-muted);
  font-size: 12px;
}

.lecture-manager-course > header > div:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lecture-manager-lessons {
  display: grid;
  border-top: 1px solid var(--lecture-line);
}

.lecture-manager-lesson-row {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  min-height: 54px;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--lecture-line);
  font-size: 13px;
}

.lecture-manager-lesson-number {
  color: var(--lecture-muted);
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.lecture-manager-lesson-copy {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.lecture-manager-lesson-copy strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-manager-lesson-copy small {
  color: var(--lecture-muted);
}

.lecture-manager-lesson-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lecture-manager-lesson-actions button {
  min-height: 36px;
  padding: 0 11px;
  white-space: nowrap;
}

.lecture-manager-lesson-actions .lecture-lesson-archive {
  color: #b33a3a;
}

.lecture-manager-archived {
  border-bottom: 1px solid var(--lecture-line);
}

.lecture-manager-archived > summary {
  display: flex;
  min-height: 46px;
  align-items: center;
  gap: 8px;
  color: var(--lecture-muted);
  cursor: pointer;
  font-size: 13px;
  list-style: none;
}

.lecture-manager-archived > summary::-webkit-details-marker {
  display: none;
}

.lecture-manager-archived > summary strong {
  display: inline-grid;
  min-width: 22px;
  min-height: 22px;
  place-items: center;
  border-radius: 999px;
  background: var(--lecture-soft);
  color: var(--lecture-brand);
  font-size: 11px;
}

.lecture-manager-lessons.is-archived {
  border-top-color: var(--lecture-line);
  background: color-mix(in srgb, var(--lecture-soft) 42%, transparent);
}

.lecture-manager-lessons.is-archived .lecture-manager-lesson-row {
  padding-inline: 8px;
}

.lecture-manager-tabs {
  display: flex;
  min-height: 46px;
  align-items: stretch;
  gap: 24px;
  border-bottom: 1px solid var(--lecture-line);
}

.lecture-manager-tabs button {
  position: relative;
  min-height: 46px;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0 2px;
  color: var(--lecture-muted);
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
}

.lecture-manager-tabs button::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: transparent;
  content: "";
}

.lecture-manager-tabs button.active {
  color: var(--lecture-brand);
}

.lecture-manager-tabs button.active::after {
  background: currentColor;
}

.lecture-overview {
  display: grid;
  gap: 34px;
}

.lecture-overview-summary,
.lecture-overview-section {
  display: grid;
  gap: 18px;
  border-bottom: 1px solid var(--lecture-line);
  padding-bottom: 32px;
}

.lecture-overview-summary-head,
.lecture-overview-section-head,
.lecture-overview-detail-head,
.lecture-overview-subhead {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.lecture-overview-summary-head > div,
.lecture-overview-section-head > div,
.lecture-overview-detail-head > div,
.lecture-overview-subhead > div {
  display: grid;
  gap: 3px;
}

.lecture-overview-summary-head span,
.lecture-overview-section-head span,
.lecture-overview-detail-head > div > span {
  color: var(--lecture-brand);
  font-size: 11px;
  font-weight: 700;
}

.lecture-overview-summary-head h2,
.lecture-overview-section-head h2,
.lecture-overview-detail-head h2,
.lecture-overview-subhead h3,
.lecture-overview-summary-head small,
.lecture-overview-section-head p,
.lecture-overview-detail-head p,
.lecture-overview-subhead p {
  margin: 0;
}

.lecture-overview-summary-head h2,
.lecture-overview-section-head h2,
.lecture-overview-detail-head h2 {
  font-size: 20px;
  line-height: 1.35;
}

.lecture-overview-summary-head > small,
.lecture-overview-section-head p,
.lecture-overview-detail-head p,
.lecture-overview-subhead p {
  color: var(--lecture-muted);
  font-size: 11px;
  line-height: 1.5;
}

.lecture-overview-metrics {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-block: 1px solid var(--lecture-line);
}

.lecture-overview-metric {
  display: grid;
  min-height: 104px;
  align-content: center;
  gap: 3px;
  border-right: 1px solid var(--lecture-line);
  padding: 16px;
}

.lecture-overview-metric:last-child {
  border-right: 0;
}

.lecture-overview-metric > span,
.lecture-overview-metric > small {
  color: var(--lecture-muted);
  font-size: 10px;
}

.lecture-overview-metric > strong {
  overflow: hidden;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-overview-course-list {
  display: grid;
  border-top: 1px solid var(--lecture-line);
}

.lecture-overview-course-row {
  display: grid;
  grid-template-columns: minmax(220px, 1.6fr) minmax(180px, 1fr) minmax(72px, 0.45fr) minmax(72px, 0.45fr) 22px;
  min-height: 88px;
  align-items: center;
  gap: 16px;
  border: 0;
  border-bottom: 1px solid var(--lecture-line);
  border-radius: 0;
  background: transparent;
  padding: 14px 8px;
  color: var(--lecture-ink);
  text-align: left;
  cursor: pointer;
}

.lecture-overview-course-row:hover,
.lecture-overview-course-row:focus-visible,
.lecture-overview-course-row.active {
  background: var(--lecture-brand-soft);
}

.lecture-overview-course-row.active .lecture-overview-course-copy > strong {
  color: var(--lecture-brand-strong);
}

.lecture-overview-course-copy,
.lecture-overview-course-stat,
.lecture-overview-course-progress {
  display: grid;
  gap: 3px;
  font-style: normal;
}

.lecture-overview-course-copy small,
.lecture-overview-course-copy em,
.lecture-overview-course-stat small,
.lecture-overview-course-progress small {
  color: var(--lecture-muted);
  font-size: 10px;
  font-style: normal;
}

.lecture-overview-course-copy strong {
  overflow: hidden;
  font-size: 15px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-overview-course-stat strong,
.lecture-overview-course-progress > strong {
  font-size: 15px;
}

.lecture-overview-course-progress > span,
.lecture-lesson-insight-progress > span,
.lecture-overview-student-progress > span {
  display: block;
  overflow: hidden;
  height: 6px;
  border-radius: 999px;
  background: var(--lecture-subtle);
}

.lecture-overview-course-progress > span > i,
.lecture-lesson-insight-progress > span > i,
.lecture-overview-student-progress > span > i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--lecture-brand);
}

.lecture-overview-course-row > .icon {
  width: 18px;
  height: 18px;
  color: var(--lecture-muted);
}

.lecture-overview-detail-head > label {
  display: grid;
  width: min(100%, 300px);
  gap: 5px;
}

.lecture-overview-detail-head > label > span {
  color: var(--lecture-muted);
  font-size: 10px;
  font-weight: 650;
}

.lecture-overview-subhead {
  align-items: center;
  margin-top: 4px;
}

.lecture-overview-subhead h3 {
  font-size: 15px;
}

.lecture-overview-subhead > span {
  color: var(--lecture-brand);
  font-size: 12px;
  font-weight: 700;
}

.lecture-lesson-insights,
.lecture-overview-student-table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--lecture-line);
  border-radius: 10px;
}

.lecture-lesson-insights > div,
.lecture-overview-student-table > div {
  display: grid;
  min-height: 52px;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--lecture-line);
  padding: 10px 12px;
  font-size: 11px;
}

.lecture-lesson-insights > div {
  grid-template-columns: minmax(220px, 1.7fr) 70px 70px minmax(150px, 1fr) 90px;
}

.lecture-overview-student-table > div {
  grid-template-columns: minmax(180px, 1.5fr) minmax(150px, 1fr) minmax(86px, 0.65fr) minmax(92px, 0.7fr) minmax(130px, 0.9fr);
}

.lecture-lesson-insights > div:last-child,
.lecture-overview-student-table > div:last-child {
  border-bottom: 0;
}

.lecture-lesson-insights > .head,
.lecture-overview-student-table > .head {
  min-height: 40px;
  background: var(--lecture-subtle);
  color: var(--lecture-muted);
  font-weight: 700;
}

.lecture-lesson-insight-title,
.lecture-overview-student-name {
  display: flex;
  align-items: center;
  gap: 9px;
}

.lecture-lesson-insight-title > i {
  display: grid;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  place-items: center;
  border-radius: 50%;
  background: var(--lecture-brand-soft);
  color: var(--lecture-brand);
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
}

.lecture-lesson-insight-title > strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lecture-lesson-insight-progress,
.lecture-overview-student-progress {
  display: grid;
  grid-template-columns: minmax(54px, 1fr) auto;
  align-items: center;
  gap: 8px;
}

.lecture-overview-student-name > span {
  display: grid;
  gap: 2px;
}

.lecture-overview-student-name small,
.lecture-overview-student-table span > small {
  color: var(--lecture-muted);
  font-size: 9px;
}

.lecture-overview-completion {
  display: grid;
  justify-items: start;
  gap: 2px;
}

.lecture-overview-status {
  color: #8a6a20 !important;
}

.lecture-overview-status.complete {
  color: var(--lecture-brand) !important;
}

.lecture-overview-search {
  display: flex !important;
  width: min(100%, 280px) !important;
  min-height: 42px;
  align-items: center;
  gap: 8px !important;
  border: 1px solid var(--lecture-line);
  border-radius: 10px;
  background: var(--lecture-surface);
  padding: 0 12px;
}

.lecture-overview-search .icon {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
  color: var(--lecture-muted);
}

.lecture-overview-search input {
  width: 100%;
  min-height: 40px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--lecture-ink);
  font-size: 12px;
}

.lecture-overview-empty-row {
  margin: 0;
  border: 1px dashed var(--lecture-line);
  border-radius: 10px;
  padding: 22px;
  color: var(--lecture-muted);
  font-size: 12px;
  text-align: center;
}

.lecture-overview-result-count {
  justify-self: end;
  color: var(--lecture-muted);
  font-size: 10px;
}

[data-lecture-student-row][hidden] {
  display: none !important;
}

.lecture-overview-reviews > div:last-child {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}

.lecture-overview-reviews article {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  border-bottom: 1px solid var(--lecture-line);
  padding: 0 0 14px;
}

.lecture-overview-reviews article > div {
  display: grid;
  gap: 3px;
}

.lecture-overview-reviews header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lecture-overview-reviews header span {
  color: #9b771d;
  font-size: 10px;
}

.lecture-overview-reviews header time,
.lecture-overview-reviews article small {
  color: var(--lecture-muted);
  font-size: 9px;
}

.lecture-overview-reviews header time {
  margin-left: auto;
}

.lecture-overview-reviews article p {
  margin: 3px 0 0;
  color: var(--lecture-ink);
  font-size: 11px;
  line-height: 1.55;
}

@media (max-width: 900px) {
  .lecture-detail-layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 24px;
  }

  .lecture-player-layout {
    grid-template-columns: 1fr;
  }

  .lecture-player-side {
    grid-template-columns: minmax(220px, 0.7fr) minmax(180px, 0.3fr);
    border-top: 1px solid var(--lecture-line);
    border-left: 0;
    padding: 16px 0 0;
  }

  .lecture-player-lessons {
    grid-column: 1 / -1;
    max-height: 260px;
  }

  .lecture-manager-profile,
  .lecture-course-create {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lecture-manager-profile > div,
  .lecture-course-create-title,
  .lecture-course-create .wide {
    grid-column: 1 / -1;
  }

  .lecture-overview-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lecture-overview-metric:nth-child(3) {
    border-right: 0;
  }

  .lecture-overview-metric:nth-child(-n + 3) {
    border-bottom: 1px solid var(--lecture-line);
  }

  .lecture-overview-course-row {
    grid-template-columns: minmax(200px, 1.5fr) minmax(150px, 1fr) 70px 70px 20px;
    gap: 10px;
  }

  .lecture-lesson-insights,
  .lecture-overview-student-table {
    overflow-x: auto;
  }

  .lecture-lesson-insights > div {
    min-width: 720px;
  }

  .lecture-overview-student-table > div {
    min-width: 760px;
  }

}

@media (max-width: 680px) {
  .learning-section-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    margin: -4px 0 20px;
  }

  .learning-section-tabs button {
    justify-content: center;
    font-size: 13px;
  }

  .lecture-page-head {
    align-items: start;
    margin-bottom: 14px;
  }

  .lecture-page-head h1,
  .lecture-course-hero h1 {
    font-size: 24px;
  }

  .lecture-page-head p {
    font-size: 12px;
  }

  .lecture-page-head .ghost {
    width: 40px;
    min-width: 40px;
    height: 40px;
    min-height: 40px;
    justify-content: center;
    overflow: hidden;
    padding: 0;
    color: transparent;
    font-size: 0;
  }

  .lecture-page-head .ghost .icon {
    color: var(--lecture-ink);
  }

  .lecture-instructor-groups {
    gap: 30px;
  }

  .lecture-instructor-group {
    gap: 10px;
  }

  .lecture-instructor-group-head {
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 10px;
    padding-inline: 2px;
  }

  .lecture-instructor-group-head .lecture-avatar {
    width: 48px;
    height: 48px;
    flex-basis: 48px;
    font-size: 16px;
  }

  .lecture-instructor-group-head h2 {
    font-size: 16px;
  }

  .lecture-instructor-group-head p {
    display: -webkit-box;
    overflow: hidden;
    font-size: 10px;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
  }

  .lecture-instructor-group-head > strong {
    font-size: 17px;
  }

  .lecture-catalog-item {
    grid-template-columns: 104px minmax(0, 1fr) 20px;
    gap: 12px;
    padding: 14px 2px;
  }

  .lecture-catalog-copy {
    gap: 4px;
  }

  .lecture-catalog-copy h2,
  .lecture-catalog-copy h3 {
    font-size: 15px;
  }

  .lecture-catalog-copy > p {
    font-size: 11px;
    -webkit-line-clamp: 1;
  }

  .lecture-course-meta {
    gap: 3px 7px;
    font-size: 10px;
  }

  .lecture-course-meta span + span::before {
    margin-right: 6px;
  }

  .lecture-instructor-line {
    font-size: 10px;
  }

  .lecture-instructor-line > small {
    display: none;
  }

  .lecture-progress-line,
  .lecture-catalog-copy > small {
    display: none;
  }

  .lecture-course-cover {
    border-radius: 8px;
  }

  .lecture-course-cover > span {
    right: 5px;
    bottom: 5px;
    min-height: 20px;
    padding: 3px 5px;
    font-size: 9px;
  }

  .lecture-detail-layout {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .lecture-instructor-rail {
    position: static;
    grid-template-columns: 58px minmax(0, 1fr) auto;
    align-items: center;
    gap: 3px 11px;
    border-bottom: 1px solid var(--lecture-line);
    padding: 0 0 14px;
  }

  .lecture-instructor-rail .lecture-avatar {
    grid-row: 1 / 4;
    width: 58px;
    height: 58px;
    flex-basis: 58px;
    font-size: 20px;
  }

  .lecture-instructor-rail h2,
  .lecture-instructor-rail p,
  .lecture-instructor-rail .eyebrow {
    grid-column: 2;
  }

  .lecture-instructor-rail h2 {
    font-size: 16px;
  }

  .lecture-instructor-rail p {
    display: -webkit-box;
    overflow: hidden;
    font-size: 11px;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
  }

  .lecture-instructor-rail .ghost {
    grid-row: 1 / 4;
    grid-column: 3;
    min-height: 36px;
    padding: 0 10px;
    font-size: 11px;
  }

  .lecture-curriculum-switcher {
    grid-row: auto;
    grid-column: 1 / -1;
    margin-top: 8px;
    padding-top: 10px;
  }

  .lecture-curriculum-switcher > div {
    margin-bottom: 2px;
  }

  .lecture-curriculum-switcher > button {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 1px 8px;
    padding-block: 8px;
  }

  .lecture-curriculum-switcher > button > span,
  .lecture-curriculum-switcher > button > strong {
    grid-column: 1;
  }

  .lecture-curriculum-switcher > button > small {
    grid-row: 1 / 3;
    grid-column: 2;
    white-space: nowrap;
  }

  .lecture-course-hero {
    min-height: 190px;
    border-radius: 10px;
    padding: 20px;
  }

  .lecture-course-hero h1,
  .lecture-course-hero p {
    word-break: normal;
  }

  .lecture-progress-summary > div {
    padding: 13px 6px;
  }

  .lecture-progress-summary strong {
    font-size: 17px;
  }

  .lecture-section-head {
    align-items: start;
  }

  .lecture-section-head h2 {
    font-size: 18px;
  }

  .lecture-review-form {
    grid-template-columns: 1fr;
  }

  .lecture-review-list article > p {
    margin-left: 0;
  }

  .lecture-player-head {
    margin-bottom: 8px;
  }

  .lecture-player-layout {
    gap: 12px;
  }

  .lecture-video-stage {
    width: 100vw;
    max-width: none;
    margin-left: calc(50% - 50vw);
    border-radius: 0;
  }

  .lecture-lesson-row {
    grid-template-columns: 32px minmax(0, 1fr) 32px;
    gap: 8px;
    padding-inline: 2px;
  }

  .lecture-lesson-copy strong {
    display: -webkit-box;
    overflow: hidden;
    text-overflow: clip;
    white-space: normal;
    word-break: keep-all;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .lecture-player-controls {
    grid-template-columns: 34px auto minmax(54px, 1fr) auto 34px;
    gap: 4px;
    padding-inline: 7px;
    font-size: 9px;
  }

  .lecture-player-controls button {
    width: 32px;
    min-width: 32px;
    height: 32px;
    min-height: 32px;
  }

  .lecture-center-play {
    width: 48px;
    min-width: 48px;
    height: 48px;
    min-height: 48px;
  }

  .lecture-player-side {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .lecture-speed-control > div {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .lecture-speed-control button {
    min-height: 32px;
    padding: 0 2px;
    font-size: 10px;
  }

  .lecture-player-lessons {
    grid-column: auto;
    max-height: none;
  }

  .lecture-manager-profile,
  .lecture-course-create {
    grid-template-columns: 1fr;
    padding-block: 16px;
  }

  .lecture-manager-profile > div,
  .lecture-course-create-title,
  .lecture-course-create .wide {
    grid-column: auto;
  }

  .lecture-manager-instructor-select {
    grid-template-columns: 1fr;
    justify-content: stretch;
    gap: 6px;
  }

  .lecture-manager-tabs {
    gap: 20px;
  }

  .lecture-overview {
    gap: 26px;
  }

  .lecture-overview-summary,
  .lecture-overview-section {
    gap: 14px;
    padding-bottom: 24px;
  }

  .lecture-overview-summary-head,
  .lecture-overview-section-head,
  .lecture-overview-detail-head {
    align-items: start;
  }

  .lecture-overview-summary-head > small {
    max-width: 110px;
    text-align: right;
  }

  .lecture-overview-summary-head h2,
  .lecture-overview-section-head h2,
  .lecture-overview-detail-head h2 {
    font-size: 18px;
  }

  .lecture-overview-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lecture-overview-metric,
  .lecture-overview-metric:nth-child(3) {
    min-height: 88px;
    border-right: 1px solid var(--lecture-line);
    border-bottom: 1px solid var(--lecture-line);
    padding: 12px;
  }

  .lecture-overview-metric:nth-child(2n) {
    border-right: 0;
  }

  .lecture-overview-metric:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .lecture-overview-metric > strong {
    font-size: 19px;
  }

  .lecture-overview-course-row {
    grid-template-columns: minmax(0, 1fr) 64px 64px 18px;
    gap: 8px;
    padding: 14px 4px;
  }

  .lecture-overview-course-copy {
    grid-column: 1 / 4;
  }

  .lecture-overview-course-progress {
    grid-column: 1;
  }

  .lecture-overview-course-row > .icon {
    grid-row: 1;
    grid-column: 4;
  }

  .lecture-overview-course-copy strong {
    white-space: normal;
  }

  .lecture-overview-detail-head {
    display: grid;
    grid-template-columns: 1fr;
  }

  .lecture-overview-detail-head > label,
  .lecture-overview-search {
    width: 100% !important;
  }

  .lecture-overview-subhead {
    align-items: end;
  }

  .lecture-lesson-insights,
  .lecture-overview-student-table {
    overflow: visible;
    border: 0;
    border-radius: 0;
    gap: 8px;
  }

  .lecture-lesson-insights > .head,
  .lecture-overview-student-table > .head {
    display: none;
  }

  .lecture-lesson-insights > div:not(.head),
  .lecture-overview-student-table > div:not(.head) {
    min-width: 0;
    border: 1px solid var(--lecture-line);
    border-radius: 10px;
    padding: 12px;
  }

  .lecture-lesson-insights > div:not(.head) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 12px;
  }

  .lecture-lesson-insight-title {
    grid-column: 1 / -1;
  }

  .lecture-lesson-insights > div:not(.head) > span:nth-child(2)::before {
    color: var(--lecture-muted);
    content: "시작 ";
  }

  .lecture-lesson-insights > div:not(.head) > span:nth-child(3)::before {
    color: var(--lecture-muted);
    content: "완강 ";
  }

  .lecture-lesson-insight-progress {
    grid-column: 1 / -1;
  }

  .lecture-lesson-insights > div:not(.head) > span:last-child {
    grid-column: 1 / -1;
    color: var(--lecture-muted);
  }

  .lecture-lesson-insights > div:not(.head) > span:last-child::before {
    content: "실제 시청 ";
  }

  .lecture-overview-student-table > div:not(.head) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 12px;
  }

  .lecture-overview-student-name,
  .lecture-overview-student-progress {
    grid-column: 1 / -1;
  }

  .lecture-overview-student-table > div:not(.head) > span:nth-child(4)::before {
    display: block;
    color: var(--lecture-muted);
    font-size: 9px;
    content: "실제 시청";
  }

  .lecture-overview-student-table > div:not(.head) > span:nth-child(5)::before {
    display: block;
    color: var(--lecture-muted);
    font-size: 9px;
    content: "최근 학습";
  }

  .lecture-overview-reviews > div:last-child {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .lecture-manager-profile-readonly {
    grid-template-columns: 1fr auto;
  }

  .lecture-manager-profile-readonly > div {
    grid-column: 1;
  }

  .lecture-manager-profile-readonly > strong {
    grid-column: 2;
  }

  .lecture-manager-course > header {
    align-items: start;
  }

  .lecture-manager-course > header > div:last-child {
    justify-content: flex-end;
  }

  .lecture-manager-lesson-row {
    grid-template-columns: 24px minmax(0, 1fr);
    padding-block: 8px;
  }

  .lecture-manager-lesson-actions {
    grid-column: 2;
    grid-row: 2;
    align-self: center;
    justify-content: flex-end;
  }

  .lecture-manager-lesson-actions button {
    min-width: 42px;
    padding-inline: 9px;
  }

}

@media (prefers-reduced-motion: reduce) {
  .lecture-video-watermark {
    transition: none;
  }
}

/* Admin selection stays a compact roster, not another stack of cards. */
.admin-lecture-instructor-tools {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.admin-lecture-selection-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border, #dfe7e3);
}

.admin-lecture-selection-summary > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}

.admin-lecture-selection-summary strong {
  color: var(--brand, #087454);
  font-size: 24px;
  line-height: 1;
}

.admin-lecture-selection-summary span,
.admin-lecture-selection-summary p {
  margin: 0;
  color: var(--text-2, #66736d);
  font-size: 13px;
  line-height: 1.55;
}

.admin-lecture-search {
  position: relative;
  display: block;
}

.admin-lecture-search > .icon {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 14px;
  width: 18px;
  height: 18px;
  color: var(--text-2, #66736d);
  pointer-events: none;
  transform: translateY(-50%);
}

.admin-lecture-search .input {
  width: 100%;
  padding-left: 42px;
}

.admin-lecture-instructor-list {
  display: grid;
  min-width: 0;
}

.admin-lecture-instructor-row {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(220px, 1fr) auto minmax(132px, auto);
  align-items: center;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--border, #dfe7e3);
}

.admin-lecture-instructor-row:first-child {
  border-top: 0;
}

.admin-lecture-instructor-person {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
}

.admin-lecture-instructor-person .mini-avatar {
  width: 40px;
  min-width: 40px;
  height: 40px;
}

.admin-lecture-instructor-person > div {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.admin-lecture-instructor-person strong,
.admin-lecture-instructor-person span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-lecture-instructor-person strong {
  color: var(--text, #18211d);
  font-size: 14px;
}

.admin-lecture-instructor-person span,
.admin-lecture-instructor-state small {
  color: var(--text-2, #66736d);
  font-size: 12px;
}

.admin-lecture-instructor-state {
  display: grid;
  justify-items: end;
  gap: 2px;
  text-align: right;
}

.admin-lecture-instructor-state > span {
  color: var(--text-2, #66736d);
  font-size: 12px;
  font-weight: 700;
}

.admin-lecture-instructor-state > span.is-approved {
  color: var(--brand, #087454);
}

.admin-lecture-instructor-row > button {
  min-width: 132px;
  min-height: 40px;
  justify-content: center;
  white-space: nowrap;
}

@media (max-width: 680px) {
  .admin-lecture-selection-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .admin-lecture-instructor-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 9px 12px;
  }

  .admin-lecture-instructor-state {
    align-self: center;
  }

  .admin-lecture-instructor-row > button {
    width: 100%;
    grid-column: 1 / -1;
  }
}