.education-module {
  display: grid;
  gap: 1rem;
}
.education-module--compact {
  gap: 0.85rem;
}
.education-card,
.quiz-explanation-panel {
  border: 1px solid rgba(163, 186, 215, 0.18);
  border-left: 3px solid var(--text-muted);
  border-radius: 1rem;
  background: #0a12207a;
  padding: 1rem;
}
.education-card h3,
.quiz-explanation-panel strong {
  margin: 0;
}
.education-objectives,
.education-list {
  display: grid;
  gap: 0.65rem;
}
.education-objectives li,
.education-list li {
  padding-left: 1.4rem;
  position: relative;
}
.education-objectives li:before,
.education-list li:before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: #61b6fff2;
}
.education-callout {
  margin-top: 0.9rem;
  border-radius: 0.9rem;
  padding: 0.85rem 0.95rem;
}
.education-callout strong {
  display: block;
  margin-bottom: 0.35rem;
}
.education-callout--pearl {
  background: #13503f6b;
  border: 1px solid rgba(82, 214, 162, 0.24);
}
.education-callout--pitfall {
  background: #5c291a61;
  border: 1px solid rgba(237, 132, 92, 0.22);
}
.boundary-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  margin-bottom: 0.8rem;
}
.boundary-grid__item {
  border-radius: 0.85rem;
  background: #ffffff08;
  padding: 0.8rem;
}
.boundary-grid__item strong,
.related-images-strip__item strong {
  display: block;
  margin-bottom: 0.35rem;
}
.staging-summary {
  display: grid;
  gap: 0.75rem;
}
.staging-badge {
  display: inline-flex;
  flex-direction: column;
  gap: 0.2rem;
  border-radius: 999px;
  padding: 0.65rem 0.9rem;
  width: fit-content;
}
.staging-badge strong {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.staging-badge--neutral {
  background: #387cd02e;
  border: 1px solid rgba(96, 165, 250, 0.3);
}
.staging-badge--warning {
  background: #9933412e;
  border: 1px solid rgba(244, 114, 182, 0.24);
}
.staging-badge--accent {
  background: #2e725633;
  border: 1px solid rgba(74, 222, 128, 0.22);
}
.related-images-strip {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  margin-top: 0.9rem;
}
.related-images-strip__item {
  border-radius: 0.9rem;
  overflow: hidden;
  background: #ffffff08;
  border: 1px solid rgba(163, 186, 215, 0.16);
}
.related-images-strip__item img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.related-images-strip__item figcaption {
  display: grid;
  gap: 0.25rem;
  padding: 0.75rem;
}
.education-case {
  margin-top: 0.8rem;
  border-left: 3px solid rgba(97, 182, 255, 0.62);
  padding-left: 0.85rem;
}
.education-case--takeaway {
  border-left-color: #4ade80a6;
}
.quiz-explanation-panel {
  margin-top: 1rem;
  display: grid;
  gap: 0.9rem;
}
.quiz-explanation-panel--success {
  border-color: #4ade804d;
  background: #112c258c;
}
.quiz-explanation-panel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.quiz-explanation-panel__answer {
  border-radius: 0.85rem;
  padding: 0.85rem;
  background: #ffffff0a;
}
.education-option-rationale {
  border-radius: 0.85rem;
  border: 1px solid rgba(163, 186, 215, 0.14);
  background: #ffffff06;
  padding: 0.8rem 0.9rem;
}
.education-option-rationale--correct {
  border-color: #4ade8047;
}
.education-option-rationale--selected {
  border-color: #f472b638;
}
@media (min-width: 900px) {
  .education-module {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .education-card--objectives {
    grid-column: span 2;
  }
}
:root {
  color-scheme: dark;
  --bg: #07111d;
  --panel: #0d1a2a;
  --panel-soft: #122235;
  --panel-strong: #15263d;
  --line: #1c324d;
  --line-strong: #274564;
  --text: #ebf1f5;
  --text-soft: #9ab0c4;
  --text-muted: #6e87a0;
  --accent-cyan: #7fbdf2;
  --accent-green: #8fe0c0;
  --accent-gold: #e6bd79;
  --accent-rose: #e1a1a8;
  --zone-upper-bg: #122a40;
  --zone-upper-border: #2d6ca3;
  --zone-upper-text: #90ccff;
  --zone-subcarinal-bg: #123429;
  --zone-subcarinal-border: #2d8a6a;
  --zone-subcarinal-text: #88e0bd;
  --zone-hilar-bg: #36213b;
  --zone-hilar-border: #8861a7;
  --zone-hilar-text: #d6afe8;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}
* {
  box-sizing: border-box;
}
html,
body,
#root {
  min-height: 100%;
}
body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(62, 108, 163, 0.22), transparent 30%),
    radial-gradient(circle at left center, rgba(46, 138, 106, 0.18), transparent 26%),
    linear-gradient(180deg, #07111d, #060d17);
  color: var(--text);
  font-family: 'Source Serif 4', Georgia, serif;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select {
  font: inherit;
}
button {
  cursor: pointer;
}
img,
video,
iframe {
  display: block;
  width: 100%;
  height: auto;
}
#root {
  padding: 20px 14px 96px;
}
.app-shell {
  max-width: 1280px;
  margin: 0 auto;
}
.app-shell__frame {
  border: 1px solid rgba(123, 163, 200, 0.12);
  border-radius: 32px;
  background: #050c16d6;
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.app-shell__content {
  padding: 22px;
}
.top-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 22px 18px;
  background:
    radial-gradient(circle at top right, rgba(127, 189, 242, 0.14), transparent 24%),
    linear-gradient(180deg, #122235f5, #07111df5);
  border-bottom: 1px solid rgba(123, 163, 200, 0.12);
}
.top-header__identity {
  display: flex;
  align-items: center;
  gap: 16px;
}
.top-header__mark {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #2d6ca3b8, #7fbdf238);
  border: 1px solid rgba(127, 189, 242, 0.32);
  font-size: 24px;
}
.eyebrow {
  font-family:
    Space Mono,
    monospace;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.top-header__title,
.hero-card h2,
.section-card h2,
.detail-card h2,
.quiz-card h2 {
  margin: 0;
  font-size: clamp(1.35rem, 1.1rem + 1vw, 2rem);
  line-height: 1.1;
}
.top-header__subtitle,
.hero-card p,
.mini-card p,
.section-card p,
.detail-card p,
.lecture-card p,
.quiz-card p,
.schedule-item p,
.flashcard p {
  color: var(--text-soft);
}
.top-header__meta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  text-align: right;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.top-nav {
  display: flex;
  gap: 10px;
  padding: 14px 22px 0;
  overflow-x: auto;
}
.top-nav__link,
.bottom-nav__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: 0.16s ease;
}
.top-nav__link:hover,
.bottom-nav__link:hover {
  border-color: #7fbdf22e;
  color: var(--text);
}
.top-nav__link--active,
.bottom-nav__link--active {
  background: #2d6ca338;
  border-color: #7fbdf252;
  color: var(--accent-cyan);
}
.top-nav__link--locked,
.bottom-nav__link--locked {
  color: var(--accent-gold);
}
.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: 14px;
  transform: translate(-50%);
  z-index: 10;
  display: flex;
  gap: 8px;
  width: min(calc(100% - 20px), 680px);
  padding: 10px;
  border-radius: 999px;
  background: #060d17e6;
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(123, 163, 200, 0.14);
}
.bottom-nav__link {
  flex: 1;
  flex-direction: column;
  min-height: 54px;
  padding: 6px 10px;
  font-size: 0.68rem;
}
.bottom-nav__icon {
  font-size: 1rem;
}
.page-stack {
  display: grid;
  gap: 24px;
}
.hero-card,
.section-card,
.detail-card,
.quiz-card,
.lecture-card,
.stack-card,
.mini-card,
.flashcard {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: linear-gradient(180deg, #122235b8, #08101cf0);
}
.hero-card,
.section-card,
.detail-card,
.quiz-card {
  padding: 20px;
}
.page-title {
  font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.hero-card {
  position: relative;
  overflow: hidden;
}
.hero-card:after {
  content: '';
  position: absolute;
  inset: auto -40px -40px auto;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(127, 189, 242, 0.16), transparent 68%);
}
.section-card__heading,
.quiz-card__header,
.detail-card__header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.interactive-card {
  border-left: 3px solid var(--accent-cyan);
}
.reference-card {
  border-left: 3px solid var(--text-muted);
}
.sub-tab-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0;
}
.sub-tab-row__link {
  flex: 0 0 auto;
  white-space: nowrap;
}
.stats-grid,
.mini-card-grid,
.module-grid,
.split-grid,
.media-grid {
  display: grid;
  gap: 14px;
}
.stats-grid,
.mini-card-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.module-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.split-grid {
  grid-template-columns: 1fr;
}
.split-grid--map {
  align-items: start;
}
.stat-card,
.mini-card {
  padding: 16px;
}
.stat-card strong,
.mini-card strong,
.quiz-card__score {
  display: block;
  font-family:
    Space Mono,
    monospace;
  font-size: 1.05rem;
  color: var(--text);
}
.module-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(180deg, #0f1b2aeb, #08101cfa);
  border: 1px solid rgba(123, 163, 200, 0.14);
}
.module-card:hover {
  border-color: #7fbdf257;
  transform: translateY(-1px);
}
.module-card--locked {
  opacity: 0.78;
}
.module-card__icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: #ffffff0a;
  font-size: 1.4rem;
  font-family:
    Space Mono,
    monospace;
}
.module-card__body h3,
.lecture-card h3,
.flashcard h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
}
.learning-path,
.progress-list,
.detail-card__hero,
.detail-card__panel-grid,
.learn-more-drawer,
.learn-more-drawer__content {
  display: grid;
  gap: 14px;
}
.learning-path__step,
.resume-card,
.progress-row {
  display: grid;
  gap: 12px;
  color: var(--text);
  transition:
    border-color 0.16s ease,
    transform 0.16s ease;
}
.learning-path__step,
.progress-row {
  grid-template-columns: auto 1fr;
  align-items: center;
}
.learning-path__body,
.resume-card__body {
  display: grid;
  gap: 8px;
}
.learning-path__marker {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid rgba(127, 189, 242, 0.24);
  background: #ffffff0a;
  font-family:
    Space Mono,
    monospace;
}
.learning-path__marker--done {
  color: #d7ffe9;
  background: #143f307a;
  border-color: #8fe0c057;
}
.resume-card,
.progress-row {
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: #ffffff08;
}
.learning-path__step:hover,
.resume-card:hover,
.progress-row:hover {
  border-color: #7fbdf247;
  transform: translateY(-1px);
}
.resume-card {
  grid-template-columns: 1fr auto;
  align-items: center;
}
.progress-row {
  grid-template-columns: minmax(0, 160px) 1fr auto;
}
.progress-row__label {
  font-family:
    Space Mono,
    monospace;
  color: var(--text-soft);
}
.progress-meter {
  position: relative;
  display: block;
  width: 100%;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #7ba3c824;
}
.progress-meter__bar {
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-cyan), #d0ebff);
}
.module-card__body p,
.lecture-card__placeholder span,
.media-slot__placeholder p,
.feedback-banner p,
.choice-card span,
.mini-card span {
  margin: 0;
  font-size: 0.96rem;
}
.module-card__arrow {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 1.2rem;
}
.module-card__status {
  display: inline-flex;
  margin-top: 8px;
  color: var(--accent-gold);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.74rem;
  letter-spacing: 0.03em;
}
.schedule-list,
.stack-list {
  display: grid;
  gap: 10px;
}
.schedule-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: #ffffff05;
  border: 1px solid rgba(123, 163, 200, 0.08);
}
.schedule-item > span {
  font-family:
    Space Mono,
    monospace;
  color: var(--accent-cyan);
}
.station-map {
  position: relative;
  width: 100%;
  aspect-ratio: 649 / 791;
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(180deg, #081321, #0b1a2b 42%, #081321);
  border: 1px solid rgba(123, 163, 200, 0.14);
}
.station-map__image {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.station-map__image--quiz {
  filter: saturate(0.82) brightness(0.8) contrast(0.92);
}
.station-map__connections {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.station-map__quiz-scrim,
.station-map__quiz-masks {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.station-map__quiz-scrim {
  z-index: 1;
  background:
    radial-gradient(circle at center, #07111d14, #07111d38),
    linear-gradient(180deg, #07111d14, #07111d29);
}
.station-map__quiz-masks {
  z-index: 2;
}
.station-map__quiz-mask {
  position: absolute;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: #07111d2e;
  -webkit-backdrop-filter: blur(7px) brightness(0.66);
  backdrop-filter: blur(7px) brightness(0.66);
  box-shadow:
    0 0 0 1px #ffffff0a,
    0 8px 18px #0000002e;
}
.station-map__connections line {
  stroke: #ebf1f547;
  stroke-width: 2.4;
  stroke-dasharray: 10 10;
}
.station-map__landmark {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #ffffff0a;
}
.station-map__landmark--tube {
  border-radius: 22px;
}
.station-map__landmark--branch {
  border-radius: 18px;
}
.station-map__landmark--hub {
  border-radius: 999px;
}
.station-map__zone {
  position: absolute;
  left: 12px;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  background: #07111db8;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  z-index: 4;
}
.station-map__zone--upper {
  top: 10px;
  color: var(--zone-upper-text);
}
.station-map__zone--subcarinal {
  top: 44%;
  color: var(--zone-subcarinal-text);
}
.station-map__zone--hilar {
  top: auto;
  bottom: 14px;
  color: var(--zone-hilar-text);
}
.station-node {
  position: absolute;
  width: 38px;
  height: 38px;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--station-border) 70%, white 8%);
  background: #07111d2e;
  color: transparent;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.85rem;
  z-index: 5;
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  box-shadow: 0 0 0 1px #07111d3d;
}
.station-node--selected {
  width: 52px;
  height: 52px;
  background: color-mix(in srgb, var(--station-bg) 76%, rgba(7, 17, 29, 0.92));
  color: var(--station-text);
  box-shadow: 0 0 24px color-mix(in srgb, var(--station-border) 42%, transparent);
}
.station-node--quiz {
  width: 48px;
  height: 48px;
  background: #07111dc2;
  color: var(--text);
}
.station-node--labeled {
  color: var(--station-text);
}
.detail-card {
  border-color: color-mix(in srgb, var(--detail-accent) 28%, rgba(123, 163, 200, 0.14));
}
.detail-card__meta,
.tag-row,
.button-row,
.button-row--wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip,
.tag,
.action-pill,
.control-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: #ffffff0a;
  color: var(--text-soft);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.74rem;
}
.chip--accent,
.action-pill--active,
.control-pill--active {
  color: var(--text);
  background: #2d6ca338;
  border-color: #7fbdf247;
}
.detail-card__grid,
.detail-card__column,
.knobology-panel,
.slider-stack {
  display: grid;
  gap: 14px;
}
.media-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.media-grid--hero {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.media-slot {
  display: grid;
  gap: 8px;
}
.media-slot__controls {
  display: grid;
  gap: 10px;
}
.media-slot__eyebrow,
.quiz-card__question-meta,
.knobology-frame__status,
.lecture-card__meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.media-slot__frame,
.lecture-card__media,
.lecture-card__player,
.knobology-frame__screen,
.doppler-lab__frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(123, 163, 200, 0.14);
  min-height: 210px;
  background:
    radial-gradient(
      circle at var(--anchor-x, 50%) var(--anchor-y, 50%),
      rgba(127, 189, 242, 0.15),
      transparent 26%
    ),
    linear-gradient(180deg, #08111d, #111b2b);
}
.media-slot__frame--interactive {
  cursor: pointer;
}
.media-slot__image,
.media-slot__overlay,
.media-slot__annotations {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.media-slot__image,
.media-slot__overlay {
  object-fit: contain;
  object-position: center;
}
.media-slot__overlay,
.media-slot__annotations {
  opacity: 0;
  transition: opacity 0.16s ease;
}
.media-slot__overlay--visible,
.media-slot__annotations--visible {
  opacity: 1;
}
.media-slot__annotations {
  overflow: visible;
  pointer-events: none;
}
.media-slot__annotation {
  stroke-width: 2;
}
.media-slot__annotation--station {
  fill: #57dba829;
  stroke: #57dba8eb;
}
.media-slot__annotation--structure {
  fill: #79bfff1a;
  stroke: #79bfffb8;
}
.media-slot__annotation-label {
  font-family:
    Space Mono,
    monospace;
  font-size: 22px;
  paint-order: stroke;
  stroke-width: 6;
}
.media-slot__annotation-label--station {
  fill: #e6fff4fa;
  stroke: #08111deb;
}
.media-slot__annotation-label--structure {
  fill: #e6f4fff0;
  stroke: #08111deb;
}
.media-slot__hint {
  position: absolute;
  inset: auto 12px 12px;
  padding: 8px 10px;
  border-radius: 999px;
  background: #08111dc7;
  border: 1px solid rgba(127, 189, 242, 0.2);
  color: var(--text-soft);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.66rem;
  opacity: 0.86;
  transition:
    background 0.16s ease,
    color 0.16s ease;
}
.media-slot__hint--active {
  background: #0e2a1fe0;
  color: #d6ffeb;
}
.media-slot__note {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.media-slot__frame--upper-left {
  --anchor-x: 24%;
  --anchor-y: 24%;
}
.media-slot__frame--upper-right {
  --anchor-x: 76%;
  --anchor-y: 24%;
}
.media-slot__frame--middle-left {
  --anchor-x: 28%;
  --anchor-y: 50%;
}
.media-slot__frame--middle-right {
  --anchor-x: 72%;
  --anchor-y: 50%;
}
.media-slot__frame--center {
  --anchor-x: 50%;
  --anchor-y: 50%;
}
.media-slot__frame--lower-left {
  --anchor-x: 24%;
  --anchor-y: 74%;
}
.media-slot__frame--lower-right {
  --anchor-x: 76%;
  --anchor-y: 74%;
}
.media-slot__placeholder,
.lecture-card__placeholder,
.empty-state,
.flashcard {
  display: grid;
  place-items: center;
  gap: 8px;
  text-align: center;
}
.media-slot__placeholder,
.lecture-card__placeholder {
  min-height: 100%;
  padding: 18px;
}
.plain-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}
.knobology-lab,
.knobology-workbench,
.knobology-console,
.knobology-console__touch-panel,
.knobology-controls,
.knobology-frame {
  display: grid;
  gap: 14px;
}
.knobology-workbench {
  align-items: start;
}
.knobology-frame,
.knobology-console,
.knobology-controls {
  padding: 18px;
}
.knobology-console__hero {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}
.knobology-console__prompt,
.knobology-console__details {
  display: grid;
  gap: 12px;
}
.knobology-console__prompt {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(127, 189, 242, 0.2);
  background: linear-gradient(180deg, #14263ce0, #0b1624c2);
}
.knobology-console__prompt strong {
  font-size: 1rem;
  line-height: 1.4;
}
.knobology-console__hero h3 {
  margin: 4px 0 0;
  font-size: clamp(1.08rem, 0.98rem + 0.5vw, 1.35rem);
}
.knobology-console__hero p {
  margin: 10px 0 0;
  max-width: 62ch;
}
.knobology-console__touch-panel,
.knobology-rescue-card {
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(123, 163, 200, 0.16);
  background: #0a12207a;
}
.knobology-keyboard-feedback {
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(123, 163, 200, 0.16);
  background: #0a12207a;
}
.knobology-keyboard-feedback__grid {
  display: grid;
  gap: 12px;
}
.knobology-keyboard-feedback__card {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(123, 163, 200, 0.12);
  background: #07111d7a;
}
.knobology-keyboard-feedback__card--focus {
  border-color: #7fbdf242;
}
.knobology-keyboard-feedback__card--active {
  border-color: #8fe0c057;
  background: #143f3038;
}
.knobology-keyboard-feedback__header,
.knobology-keyboard-feedback__values {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.knobology-keyboard-feedback__values {
  font-family:
    Space Mono,
    monospace;
  font-size: 0.74rem;
  color: var(--text-muted);
}
.knobology-keyboard-feedback__status {
  color: var(--text);
  font-size: 0.94rem;
}
.knobology-rescue-card strong {
  font-size: 1.08rem;
}
.knobology-rescue-card p {
  margin: 0;
}
.learn-more-drawer {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(123, 163, 200, 0.16);
  border-left: 3px solid var(--text-muted);
  background: #0a12207a;
}
.learn-more-drawer__header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}
.learn-more-drawer__header h3 {
  margin: 0;
  font-size: 1.05rem;
}
.knobology-frame__screen {
  aspect-ratio: 772 / 418;
  background: #04090f;
}
.knobology-frame__sector {
  position: absolute;
  top: 10%;
  right: 14%;
  bottom: 7%;
  left: 14%;
  background: radial-gradient(
    circle at 50% 0%,
    rgba(162, 192, 215, 0.38),
    rgba(12, 22, 33, 0.16) 70%,
    transparent 100%
  );
  clip-path: polygon(50% 0%, 4% 100%, 96% 100%);
}
.knobology-frame__haze,
.knobology-frame__doppler {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.knobology-frame__image-shell {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
}
.knobology-frame__image {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center top;
  transition:
    filter 0.18s ease,
    transform 0.18s ease;
}
.knobology-frame__image--field {
  pointer-events: none;
}
.knobology-frame__video-shell {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  background: #02060a;
}
.knobology-frame__video,
.doppler-lab__video {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #02060a;
}
.knobology-frame__video-empty {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  color: #ebf1f5b8;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.78rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(127, 189, 242, 0.06), transparent 38%), #02060a;
}
.knobology-frame__haze {
  background: #9baab92e;
  mix-blend-mode: screen;
}
.knobology-frame__node {
  position: absolute;
  left: 50%;
  transform: translate(-50%);
  border: 2px solid rgba(225, 241, 255, 0.4);
  border-radius: 999px;
  background: radial-gradient(circle, #364a5ae0, #182732a8 72%);
}
.knobology-frame__speck {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 999px;
  background: #d2e0eda8;
}
.knobology-frame__doppler {
  left: 42%;
  top: 42%;
  width: 18%;
  height: 14%;
  border-radius: 999px;
  background: radial-gradient(
    circle,
    rgba(233, 67, 51, 0.8),
    rgba(46, 104, 231, 0.6) 60%,
    transparent 100%
  );
  filter: blur(4px);
}
.knobology-frame__measurement-layer {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  pointer-events: none;
}
.knobology-frame__measurement-panel {
  position: absolute;
  left: 16px;
  top: 68px;
  display: grid;
  grid-template-columns: auto auto;
  gap: 4px 10px;
  min-width: 108px;
  padding: 10px 12px;
  border-radius: 14px;
  background: #07111d8a;
  color: #d7f6ff;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.7rem;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.knobology-frame__measurement-panel strong {
  color: #59f3ff;
  font-weight: 700;
}
.knobology-frame__measurement-line {
  position: absolute;
  height: 0;
  border-top: 3px dotted #32f0ff;
  transform-origin: left center;
  filter: drop-shadow(0 0 6px rgba(50, 240, 255, 0.38));
}
.knobology-frame__measurement-marker {
  position: absolute;
  width: 18px;
  height: 18px;
  transform: translate(-50%, -50%);
}
.knobology-frame__measurement-marker:before,
.knobology-frame__measurement-marker:after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 14px;
  height: 2px;
  border-radius: 999px;
  background: #32f0ff;
  box-shadow: 0 0 6px #32f0ff70;
}
.knobology-frame__measurement-marker:before {
  transform: translate(-50%, -50%) rotate(45deg);
}
.knobology-frame__measurement-marker:after {
  transform: translate(-50%, -50%) rotate(-45deg);
}
.knobology-frame__measurement-marker--active:before,
.knobology-frame__measurement-marker--active:after {
  background: #7ff8ff;
}
.knobology-frame__measurement-marker--active {
  filter: drop-shadow(0 0 10px rgba(127, 248, 255, 0.56));
}
.knobology-frame__measurement-label {
  position: absolute;
  transform: translate(10px, -18px);
  color: #59f3ff;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.76rem;
  font-weight: 700;
  text-shadow: 0 0 10px rgba(50, 240, 255, 0.28);
}
.knobology-frame__focus-marker {
  position: absolute;
  left: 12%;
  right: 12%;
  height: 2px;
  border-top: 2px dashed rgba(141, 212, 255, 0.72);
  opacity: 0.75;
}
.knobology-frame__waveform {
  position: absolute;
  inset: auto 10% 10% 10%;
  height: 16%;
  display: flex;
  align-items: end;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 14px;
  background: #07111db8;
  border: 1px solid rgba(123, 163, 200, 0.18);
}
.knobology-frame__waveform-bar {
  flex: 1;
  min-height: 16%;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(180deg, #87d6ffeb, #4385d24d);
}
.knobology-frame__pip {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 24%;
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(127, 189, 242, 0.28);
  background: #07111dd1;
  box-shadow: 0 12px 28px #04080c42;
}
.knobology-frame__pip strong {
  position: absolute;
  inset: 10px 8px auto;
  color: #ebf1f5d6;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.58rem;
  line-height: 1.35;
}
.knobology-frame__pip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(1.02) contrast(1.08);
}
.knobology-frame__pip span {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 3px 6px;
  border-radius: 999px;
  background: #07111dcc;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.64rem;
}
.knobology-frame__comments {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.knobology-frame__comment {
  position: absolute;
  padding: 5px 8px;
  border-radius: 999px;
  background: #f7ebadeb;
  color: #2f240e;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.62rem;
  box-shadow: 0 8px 18px #0d12182e;
}
.knobology-frame__menu {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: grid;
  gap: 6px;
  min-width: 180px;
  padding: 12px 14px;
  border-radius: 14px;
  background: #07111dd1;
  border: 1px solid rgba(127, 189, 242, 0.22);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.72rem;
}
.knobology-frame__cine-strip {
  position: absolute;
  inset: auto 14px 14px auto;
  display: grid;
  gap: 6px;
  width: min(48%, 220px);
  padding: 10px 12px;
  border-radius: 14px;
  background: #07111dbd;
  border: 1px solid rgba(127, 189, 242, 0.18);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.68rem;
}
.knobology-frame__cine-track {
  position: relative;
  height: 6px;
  border-radius: 999px;
  background: #ffffff1a;
}
.knobology-frame__cine-thumb {
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #8fd7ff;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 4px #8fd7ff2e;
}
.knobology-frame__status {
  position: absolute;
  inset: 10px 12px auto;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
}
.knobology-frame__segment-chip {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  max-width: calc(100% - 24px);
  padding: 8px 10px;
  border-radius: 12px;
  background: #07111db8;
  border: 1px solid rgba(127, 189, 242, 0.18);
  color: #ebf1f5d6;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.68rem;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.knobology-frame__segment-chip strong {
  color: #a8f2d1;
  font-size: 0.62rem;
  text-transform: uppercase;
}
.knobology-frame__status-line {
  margin: 10px 0 0;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.82rem;
  color: var(--text-soft);
}
.knobology-frame__media-note {
  margin-top: 10px;
  font-size: 0.86rem;
  color: var(--text-muted);
}
.eu-me2 {
  display: grid;
  gap: 10px;
  margin: 0;
}
.eu-me2__frame {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(123, 163, 200, 0.16);
  background: linear-gradient(180deg, #0a121ff0, #161c26f0);
}
.eu-me2__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.eu-me2__panel-viewport {
  position: absolute;
  overflow: hidden;
  pointer-events: none;
  border-radius: 12px;
}
.eu-me2__panel-image {
  position: absolute;
  display: block;
  max-width: none;
  filter: brightness(1.01) contrast(1.03);
}
.eu-me2__overlay {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.eu-me2__hotspot,
.eu-me2__region,
.eu-me2__trackball,
.eu-me2__trackball-control {
  position: absolute;
}
.eu-me2__hotspot {
  border: 1px solid transparent;
  background: transparent;
  transition:
    border-color 0.14s ease,
    box-shadow 0.14s ease,
    background 0.14s ease,
    transform 0.14s ease;
}
.eu-me2--hinted .eu-me2__hotspot {
  border-color: #7fbdf294;
  background: #7fbdf21f;
  box-shadow: 0 0 0 2px #7fbdf224;
  animation: hotspot-pulse 2.4s ease-in-out infinite;
}
.eu-me2__hotspot:hover,
.eu-me2__hotspot:focus-visible,
.eu-me2__hotspot--active,
.eu-me2--debug .eu-me2__hotspot {
  border-color: #5befabe6;
  background: #5befab26;
  box-shadow: 0 0 0 3px #5befab1f;
}
.eu-me2__trackball-control {
  border-radius: 999px;
  border: 1px solid rgba(127, 189, 242, 0.42);
  background: #7fbdf21a;
  box-shadow: inset 0 0 0 1px #060f1857;
  cursor: grab;
  touch-action: none;
  transition:
    border-color 0.14s ease,
    box-shadow 0.14s ease,
    background 0.14s ease,
    transform 0.14s ease;
}
.eu-me2__trackball-control:hover,
.eu-me2__trackball-control:focus-visible,
.eu-me2__trackball-control--active {
  border-color: #5befabe6;
  background: #5befab24;
  box-shadow:
    inset 0 0 0 1px #060f1857,
    0 0 0 3px #5befab1f;
}
.eu-me2__trackball-control--dragging {
  cursor: grabbing;
  transform: scale(1.03);
}
.eu-me2__trackball-control:focus-visible {
  outline: none;
}
.eu-me2--editor .eu-me2__hotspot {
  cursor: grab;
  touch-action: none;
}
.eu-me2--editor .eu-me2__hotspot:active {
  cursor: grabbing;
}
.eu-me2__hotspot--selected {
  border-color: #e6bd79f5;
  background: #e6bd7929;
  box-shadow: 0 0 0 4px #e6bd7924;
}
.eu-me2__hotspot:focus-visible {
  outline: none;
}
.eu-me2__hotspot-label,
.eu-me2__region span,
.eu-me2__trackball span,
.eu-me2__trackball-label {
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translate(-50%, -100%);
  padding: 4px 6px;
  border-radius: 8px;
  background: #07111ddb;
  color: #eff8ff;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.58rem;
  line-height: 1.3;
  white-space: nowrap;
  pointer-events: none;
}
.eu-me2__hotspot-label small {
  display: block;
  color: #92d4ff;
}
.eu-me2__region,
.eu-me2__trackball {
  border: 1px dashed rgba(127, 189, 242, 0.76);
  background: #7fbdf214;
  pointer-events: none;
}
.eu-me2__trackball {
  border-radius: 999px;
}
.eu-me2__caption {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}
@keyframes hotspot-pulse {
  0%,
  to {
    box-shadow: 0 0 0 2px #7fbdf224;
  }
  50% {
    box-shadow: 0 0 0 7px #7fbdf214;
  }
}
.slider-field {
  display: grid;
  grid-template-columns: 84px 1fr 48px;
  gap: 12px;
  align-items: center;
}
.slider-field span,
.slider-field strong {
  font-family:
    Space Mono,
    monospace;
}
.slider-field input {
  accent-color: var(--accent-cyan);
}
.feedback-banner {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(225, 161, 168, 0.22);
  background: #55161f57;
}
.feedback-banner--success {
  border-color: #8fe0c038;
  background: #143f305c;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(127, 189, 242, 0.32);
  background: #2d6ca333;
  color: var(--text);
  font-family:
    Space Mono,
    monospace;
}
.button:disabled {
  opacity: 0.4;
  cursor: default;
}
.button--ghost {
  background: transparent;
  border-color: #7ba3c824;
  color: var(--text-soft);
}
.top-header__action {
  align-self: flex-end;
  min-height: 38px;
  padding: 0 14px;
}
.doppler-lab {
  display: grid;
  gap: 14px;
}
.doppler-lab__frame {
  min-height: 240px;
}
.doppler-lab__video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.doppler-lab__target,
.doppler-lab__vessel {
  position: absolute;
  border-radius: 999px;
}
.doppler-lab__target {
  top: 30%;
  right: 36%;
  bottom: 28%;
  left: 34%;
  border: 2px solid rgba(224, 235, 247, 0.3);
  background: #37465299;
}
.doppler-lab__vessel {
  top: 44%;
  right: 26%;
  bottom: 34%;
  left: 20%;
  background: linear-gradient(90deg, #de4432c7, #2e68e7b8);
  filter: blur(8px);
}
.doppler-lab__label {
  position: absolute;
  left: 14px;
  bottom: 14px;
  right: 14px;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.72rem;
  color: #ebf1f5d1;
  padding: 10px 12px;
  border-radius: 12px;
  background: #07111dad;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.doppler-lab__state {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family:
    Space Mono,
    monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-cyan);
  padding: 8px 12px;
  border-radius: 999px;
  background: #07111db8;
  border: 1px solid rgba(127, 189, 242, 0.18);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.choice-card {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: #ffffff08;
  text-align: left;
  color: var(--text);
  transition:
    border-color 0.16s ease,
    background 0.16s ease,
    transform 0.16s ease;
}
.choice-card--selected {
  border-color: #7fbdf257;
  background: #2d6ca324;
}
.pretest-chip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(52px, 1fr));
  gap: 10px;
}
.pretest-chip {
  width: 100%;
  min-height: 46px;
  justify-content: center;
}
.pretest-chip--answered {
  color: var(--accent-green);
  border-color: #8fe0c047;
  background: #143f303d;
}
.pretest-chip--active {
  color: var(--text);
  border-color: #7fbdf257;
  background: #2d6ca33d;
}
.pretest-figure {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
}
.pretest-figure img {
  border-radius: 20px;
  border: 1px solid rgba(123, 163, 200, 0.14);
  background:
    radial-gradient(circle at center, rgba(127, 189, 242, 0.12), transparent 24%),
    linear-gradient(180deg, #08111d, #111b2b);
  max-height: 420px;
  object-fit: contain;
}
.pretest-figure figcaption {
  color: var(--text-muted);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}
.pretest-unlock-form {
  display: grid;
  gap: 14px;
  max-width: 520px;
}
.pretest-unlock-form .button {
  justify-self: start;
}
.choice-card--correct {
  border-color: #8fe0c042;
  background: #143f304d;
}
.choice-card--incorrect {
  border-color: #e1a1a842;
  background: #55161f47;
}
.lecture-card {
  padding: 18px;
}
.lecture-card--locked {
  opacity: 0.64;
}
.lecture-card__header,
.lecture-card__actions {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.lecture-card__actions,
.lecture-card__player {
  margin-top: 14px;
}
.lecture-card__player iframe,
.lecture-card__player video {
  min-height: 280px;
  border: 0;
}
.lecture-card__status {
  display: inline-flex;
  margin-top: 14px;
  color: var(--accent-gold);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.74rem;
  letter-spacing: 0.03em;
}
.aabip-video-library {
  display: grid;
  gap: 18px;
}
.aabip-video-library__player,
.aabip-video-library__playlist {
  display: grid;
  gap: 14px;
}
.aabip-video-library__player-meta {
  display: grid;
  gap: 8px;
}
.aabip-video-library__player-meta h3,
.aabip-video-library__playlist h3 {
  margin: 0;
  font-size: clamp(1.08rem, 0.98rem + 0.5vw, 1.28rem);
}
.aabip-video-library__player-meta p,
.aabip-video-library__playlist-header p {
  margin: 0;
}
.aabip-video-library__frame {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: linear-gradient(180deg, #08111d, #111b2b);
  aspect-ratio: 16 / 9;
}
.aabip-video-library__frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}
.aabip-video-library__playlist-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.aabip-video-library__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.aabip-video-library__list-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: stretch;
}
.aabip-video-library__video-button {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: #ffffff0a;
  color: var(--text);
  text-align: left;
}
.aabip-video-library__video-button--active {
  border-color: #7fbdf24d;
  background: #2d6ca32e;
}
.aabip-video-library__video-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(127, 189, 242, 0.22);
  color: var(--text-soft);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.72rem;
}
.aabip-video-library__video-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}
.aabip-video-library__video-copy strong {
  font-size: 0.96rem;
  line-height: 1.45;
}
.aabip-video-library__video-copy span {
  color: var(--text-muted);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.72rem;
}
.quiz-card__progress {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(22px, 1fr));
  gap: 6px;
  margin-bottom: 14px;
}
.quiz-card__progress-pill {
  height: 5px;
  border-radius: 999px;
  background: #7ba3c824;
}
.quiz-card__progress-pill--active {
  background: var(--accent-cyan);
}
.quiz-card__progress-pill--correct {
  background: var(--accent-green);
}
.quiz-card__progress-pill--incorrect {
  background: var(--accent-rose);
}
.flashcard {
  min-height: 220px;
  padding: 20px;
  cursor: pointer;
}
.flashcard__station {
  font-family:
    Space Mono,
    monospace;
  font-size: 3rem;
  color: var(--accent-cyan);
}
.empty-state {
  min-height: 220px;
  padding: 20px;
}
.empty-state__icon {
  font-size: 2rem;
  color: var(--text-muted);
}
.input,
.select {
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(123, 163, 200, 0.18);
  background: #ffffff0a;
  color: var(--text);
}
.field {
  display: grid;
  gap: 8px;
}
.field span {
  font-family:
    Space Mono,
    monospace;
  font-size: 0.78rem;
  color: var(--text-soft);
}
.field input {
  min-height: 46px;
  padding: 0 16px;
  border-radius: 16px;
  border: 1px solid rgba(123, 163, 200, 0.18);
  background: #ffffff0d;
  color: var(--text);
}
.field input:disabled {
  opacity: 0.72;
}
.auth-card {
  max-width: 720px;
}
.auth-form {
  display: grid;
  gap: 14px;
}
.auth-card__message,
.auth-card__error {
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-family:
    Space Mono,
    monospace;
}
.auth-card__message {
  border: 1px solid rgba(143, 224, 192, 0.24);
  background: #143f3052;
  color: #d7ffe9;
}
.auth-card__error {
  border: 1px solid rgba(225, 161, 168, 0.22);
  background: #55161f57;
  color: #ffd8dc;
}
.accordion {
  display: grid;
  gap: 2px;
}
.accordion__panel {
  border-radius: var(--radius-sm);
  background: #ffffff05;
}
.accordion__trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 14px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: #ffffff08;
  color: var(--text);
  font-family:
    Space Mono,
    monospace;
  font-size: 0.88rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s ease;
}
.accordion__trigger:hover,
.accordion__trigger:focus-visible {
  background: #ffffff0f;
}
.accordion__content {
  padding: 16px;
  animation: accordion-slide 0.2s ease;
}
@keyframes accordion-slide {
  0% {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.accordion__trigger:focus-visible,
.button:focus-visible,
.button--ghost:focus-visible,
.control-pill:focus-visible,
.sub-tab-row__link:focus-visible,
.choice-card:focus-visible,
.progress-row:focus-visible,
.resume-card:focus-visible,
.learning-path__step:focus-visible {
  outline: 2px solid rgba(127, 189, 242, 0.72);
  outline-offset: 2px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.case3d-layout {
  display: grid;
  gap: 18px;
}
.case3d-sidebar,
.case3d-main,
.case3d-grid {
  display: grid;
  gap: 16px;
}
.case3d-panel {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(123, 163, 200, 0.16);
  background: linear-gradient(180deg, #101e2ed1, #070f1af5);
}
.case3d-panel h3 {
  margin: 0;
  font-size: 1.1rem;
}
.case3d-panel__header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}
.case3d-panel__header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}
.case3d-panel__header-actions .case3d-button {
  width: auto;
}
.case3d-panel__viewport {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(123, 163, 200, 0.16);
  background:
    linear-gradient(180deg, #080f19eb, #04080efa),
    radial-gradient(circle at top left, rgba(127, 189, 242, 0.08), transparent 30%);
}
.case3d-panel__viewport--hero {
  min-height: 460px;
}
.case3d-panel__viewport--hero:fullscreen {
  width: 100%;
  height: 100dvh;
  min-height: 100dvh;
  border: 0;
  border-radius: 0;
  background:
    linear-gradient(180deg, #080f19fa, #04080e),
    radial-gradient(circle at top left, rgba(127, 189, 242, 0.12), transparent 28%);
}
.case3d-panel__viewport--hero::backdrop {
  background: #040a12f5;
}
.case3d-hero {
  display: grid;
  gap: 16px;
}
.case3d-hero__controls {
  display: grid;
  gap: 14px;
  align-content: start;
}
.case3d-hero__control-group {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: #ffffff08;
}
.case3d-hero__control-title {
  margin: 4px 0 0;
  font-size: 1rem;
}
.case3d-toggle-list {
  display: grid;
  gap: 10px;
}
.case3d-fullscreen-toolbar {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}
.case3d-fullscreen-menu {
  position: absolute;
  top: 72px;
  right: 16px;
  z-index: 3;
  display: grid;
  gap: 12px;
  width: min(360px, calc(100vw - 32px));
  max-height: min(78dvh, 720px);
  overflow: auto;
  padding: 16px;
  border-radius: 22px;
  border: 1px solid rgba(127, 189, 242, 0.2);
  background: #070f1ae6;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 28px 60px #0000006b;
}
.case3d-panel__placeholder {
  min-height: 280px;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  color: var(--text-soft);
}
.case-vtk-viewport {
  width: 100%;
  height: 100%;
  min-height: inherit;
}
.case3d-select,
.case3d-slider {
  display: grid;
  gap: 8px;
}
.case3d-select span,
.case3d-slider span,
.case3d-toggle span,
.case3d-note {
  color: var(--text-soft);
}
.case3d-select select,
.case3d-slider input[type='range'],
.case3d-button {
  width: 100%;
}
.case3d-select select {
  min-height: 46px;
  padding: 0 14px;
  border-radius: 16px;
  border: 1px solid rgba(123, 163, 200, 0.18);
  background: #ffffff0a;
  color: var(--text);
}
.case3d-slider input[type='range'] {
  accent-color: var(--accent-cyan);
}
.case3d-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
}
.case3d-toggle input {
  width: 18px;
  height: 18px;
}
.case3d-button {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid rgba(127, 189, 242, 0.28);
  border-radius: 999px;
  background: #7fbdf21f;
  color: var(--text);
}
.case3d-button--secondary {
  background: #ffffff0a;
}
.case3d-button--overlay {
  width: auto;
  min-width: 0;
  background: #070f1ac2;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.case3d-note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
}
.case3d-segment-section {
  display: grid;
  gap: 10px;
}
.case3d-segment-section__title {
  color: var(--text);
  font-size: 0.92rem;
}
.case3d-segment-list {
  display: grid;
  gap: 10px;
  max-height: 260px;
  overflow: auto;
  padding-right: 6px;
}
.page-stack--course-overview {
  gap: 28px;
}
.course-hero,
.course-section {
  position: relative;
}
.course-hero {
  margin: -22px -22px 0;
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(180, 36, 68, 0.22), transparent 32%),
    radial-gradient(circle at 78% 18%, rgba(127, 189, 242, 0.24), transparent 34%),
    linear-gradient(135deg, #0b1421fa, #07111df0);
  border-bottom: 1px solid rgba(123, 163, 200, 0.12);
}
.course-hero:before,
.course-hero:after {
  content: '';
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}
.course-hero:before {
  inset: auto auto -120px -80px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(180, 36, 68, 0.24), transparent 68%);
}
.course-hero:after {
  inset: 40px -60px auto auto;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(127, 189, 242, 0.18), transparent 66%);
}
.course-hero__inner {
  display: grid;
  gap: 28px;
  padding: 26px 22px 30px;
}
.course-hero__content,
.course-hero__media,
.course-section,
.course-panel,
.course-route-list,
.course-track-list,
.course-topic-list,
.course-step-list,
.course-gallery,
.course-highlight-grid,
.course-agenda,
.course-fact-grid {
  display: grid;
  gap: 16px;
}
.course-hero__content {
  align-content: start;
}
.course-hero__brand {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px;
  border-radius: 22px;
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: #07111d8a;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  animation: courseFadeUp 0.56s ease both;
}
.course-hero__logo {
  width: min(180px, 42vw);
  flex: 0 0 auto;
  filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.28));
}
.course-hero__brand-copy {
  display: grid;
  gap: 4px;
}
.course-hero__brand-line,
.course-hero__department,
.course-hero__lead,
.course-meta-card p,
.course-fact p,
.course-highlight p,
.course-panel p,
.course-track p,
.course-topic,
.course-agenda__item p,
.course-gallery__item figcaption,
.course-route p,
.course-directors span {
  margin: 0;
}
.course-hero__brand-line,
.course-directors strong {
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
}
.course-hero__department {
  color: var(--text-soft);
  line-height: 1.5;
}
.course-hero__title {
  margin: 0;
  font-size: clamp(2.3rem, 1.75rem + 2vw, 4rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  max-width: 12ch;
  text-wrap: balance;
  animation: courseFadeUp 0.64s ease both;
}
.course-hero__lead {
  max-width: 62ch;
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.7;
  animation: courseFadeUp 0.72s ease both;
}
.course-hero__meta-grid,
.course-fact-grid,
.course-highlight-grid,
.course-topic-list,
.course-track-list,
.course-gallery,
.course-section--grid,
.course-workspace {
  grid-template-columns: 1fr;
}
.course-hero__meta-grid {
  display: grid;
  gap: 12px;
}
.course-meta-card,
.course-highlight,
.course-panel,
.course-hero__callout,
.course-route,
.course-resume-card,
.course-step,
.course-gallery__item,
.course-agenda__item {
  border-radius: 24px;
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: linear-gradient(180deg, #122235b8, #08101cf0);
}
.course-meta-card {
  padding: 16px;
}
.course-meta-card span,
.course-route h3,
.course-step__percent,
.course-hero__media-primary figcaption,
.course-hero__media-secondary figcaption,
.course-address,
.course-topic {
  font-family:
    Space Mono,
    monospace;
}
.course-meta-card span,
.course-route h3,
.course-step__percent {
  color: var(--text-muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.course-meta-card strong {
  display: block;
  margin-top: 8px;
  color: var(--text);
  font-size: 1.05rem;
}
.course-fact-grid {
  display: grid;
  gap: 12px;
}
.course-fact {
  padding: 16px;
  border-radius: 22px;
  border: 1px solid rgba(123, 163, 200, 0.12);
  background: #ffffff0a;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    background 0.18s ease;
}
.course-fact strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.4rem;
  line-height: 1;
}
.course-fact span {
  display: block;
  color: var(--text);
  font-size: 0.92rem;
}
.course-fact p,
.course-highlight p,
.course-panel p,
.course-track p,
.course-gallery__item figcaption,
.course-route p,
.course-agenda__item p {
  color: var(--text-soft);
  line-height: 1.6;
}
.course-fact:hover,
.course-highlight:hover,
.course-route:hover,
.course-step:hover,
.course-gallery__item:hover {
  transform: translateY(-2px);
  border-color: #7fbdf247;
}
.course-hero__media {
  align-content: start;
}
.course-hero__media-primary,
.course-hero__media-secondary {
  position: relative;
  overflow: hidden;
  margin: 0;
  border-radius: 30px;
  box-shadow: 0 28px 80px #00000052;
}
.course-hero__media-primary {
  min-height: 320px;
  animation: courseZoomIn 0.76s ease both;
}
.course-hero__media-secondary {
  min-height: 220px;
  animation: courseFadeUp 0.78s ease both;
}
.course-hero__media-primary img,
.course-hero__media-secondary img,
.course-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.28s ease;
}
.course-gallery__item:hover img,
.course-hero__media-primary:hover img,
.course-hero__media-secondary:hover img {
  transform: scale(1.03);
}
.course-hero__media-primary figcaption,
.course-hero__media-secondary figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  padding: 10px 12px;
  border-radius: 999px;
  background: #07111dc2;
  color: var(--text);
  font-size: 0.7rem;
}
.course-hero__media-stack {
  display: grid;
  gap: 16px;
}
.course-hero__callout,
.course-highlight,
.course-panel,
.course-route,
.course-resume-card,
.course-step,
.course-gallery__item,
.course-agenda__item {
  padding: 18px;
}
.course-hero__callout h3,
.course-highlight h3,
.course-panel h2,
.course-track h3,
.course-route h3 {
  margin: 0;
}
.course-hero__callout h3 {
  font-size: 1.15rem;
  line-height: 1.3;
}
.course-checklist,
.course-institution-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.course-checklist li {
  position: relative;
  padding-left: 18px;
  color: var(--text-soft);
  line-height: 1.6;
}
.course-checklist li:before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
}
.course-checklist--muted li:before {
  background: linear-gradient(135deg, #b42444e6, #e6bd79f2);
}
.course-section {
  gap: 20px;
}
.course-section__heading,
.course-section__lede,
.course-directors {
  display: grid;
  gap: 10px;
}
.course-section__heading h2,
.course-section__lede h2,
.course-panel h2 {
  margin: 0;
  font-size: clamp(1.45rem, 1.2rem + 1vw, 2.3rem);
  line-height: 1.08;
  text-wrap: balance;
}
.course-section__heading p,
.course-section__lede p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
  max-width: 64ch;
}
.course-highlight-grid {
  display: grid;
  gap: 14px;
}
.course-highlight {
  align-content: start;
}
.course-topic-list {
  display: grid;
  gap: 10px;
}
.course-topic {
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(123, 163, 200, 0.12);
  background: #ffffff08;
  color: var(--text-soft);
  font-size: 0.78rem;
  line-height: 1.55;
}
.course-track-list,
.course-route-list {
  display: grid;
  gap: 12px;
}
.course-track {
  padding: 14px 0 14px 18px;
  border-left: 2px solid rgba(127, 189, 242, 0.28);
}
.course-track h3 {
  font-size: 0.95rem;
  color: var(--text);
}
.course-agenda {
  display: grid;
  gap: 12px;
}
.course-agenda__item {
  display: grid;
  gap: 12px;
  align-items: flex-start;
}
.course-agenda__item > span {
  color: var(--accent-cyan);
  font-family:
    Space Mono,
    monospace;
}
.course-agenda__item strong,
.course-step__body strong,
.course-resume-card__body strong {
  color: var(--text);
  font-size: 1rem;
}
.course-section__heading--spread {
  align-items: start;
}
.course-directors {
  padding: 18px;
  border-radius: 24px;
  border: 1px solid rgba(123, 163, 200, 0.14);
  background: #ffffff08;
}
.course-institution-list {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}
.course-gallery {
  display: grid;
  gap: 14px;
}
.course-gallery__item {
  overflow: hidden;
  margin: 0;
  min-height: 260px;
}
.course-gallery__item figcaption {
  margin-top: 14px;
  color: var(--text-soft);
  font-size: 0.74rem;
  line-height: 1.6;
}
.course-address {
  display: grid;
  gap: 4px;
  font-style: normal;
  color: var(--text);
  font-size: 0.82rem;
}
.course-route h3 {
  margin-bottom: 8px;
}
.course-workspace {
  display: grid;
  gap: 18px;
}
.course-workspace__sidebar,
.course-workspace__modules {
  display: grid;
  gap: 16px;
}
.course-resume-card {
  display: grid;
  gap: 16px;
  align-items: center;
}
.course-step-list {
  display: grid;
  gap: 12px;
}
.course-step {
  display: grid;
  gap: 12px;
  align-items: center;
}
.course-step__marker {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid rgba(127, 189, 242, 0.24);
  background: #ffffff0a;
  font-family:
    Space Mono,
    monospace;
}
.course-step__marker--done {
  color: #d7ffe9;
  background: #143f307a;
  border-color: #8fe0c057;
}
.course-step__body,
.course-resume-card__body {
  display: grid;
  gap: 8px;
}
.course-step__percent {
  color: var(--text-soft);
}
.course-step--locked {
  border-color: #e6bd792e;
}
.section-card--notice {
  border-color: #e6bd793d;
  background:
    radial-gradient(circle at top right, rgba(230, 189, 121, 0.12), transparent 26%), #0c141fe6;
}
@keyframes courseFadeUp {
  0% {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes courseZoomIn {
  0% {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@media (min-width: 760px) {
  #root {
    padding-bottom: 24px;
  }
  .app-shell__content {
    padding: 28px;
  }
  .split-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .detail-card__grid {
    grid-template-columns: 360px 1fr;
  }
  .detail-card__panel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .course-hero {
    margin: -28px -28px 0;
  }
  .course-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
    gap: 28px;
    padding: 34px 28px 36px;
    min-height: calc(100svh - 220px);
    align-items: center;
  }
  .course-hero__brand {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
  }
  .course-hero__meta-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .course-fact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .course-section--split {
    grid-template-columns: minmax(300px, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }
  .course-highlight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .course-section--grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .course-agenda__item {
    grid-template-columns: 108px 1fr;
  }
  .course-section__heading--spread {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
    gap: 18px;
  }
  .course-gallery {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }
  .course-gallery__item:first-child {
    grid-row: span 2;
    min-height: 100%;
  }
  .course-workspace {
    grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
  .course-step,
  .course-resume-card {
    grid-template-columns: auto 1fr auto;
  }
  .knobology-lab {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }
  .knobology-workbench {
    grid-template-columns: minmax(300px, 1.02fr) minmax(320px, 0.98fr);
    align-items: start;
  }
  .knobology-frame,
  .knobology-console {
    min-height: 100%;
    align-content: start;
  }
  .case3d-layout {
    grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
    align-items: start;
  }
  .case3d-hero {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
    align-items: start;
  }
  .case3d-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .bottom-nav {
    display: none;
  }
}
@media (max-width: 759px) {
  .top-nav {
    display: none;
  }
  .top-header {
    padding-bottom: 20px;
  }
  .course-hero {
    margin-top: -16px;
  }
  .course-hero__logo {
    width: min(150px, 34vw);
  }
  .course-gallery__item {
    min-height: 220px;
  }
  .case3d-panel__viewport--hero {
    min-height: 360px;
  }
  .case3d-fullscreen-toolbar {
    left: 12px;
    right: 12px;
    top: 12px;
  }
  .case3d-fullscreen-menu {
    top: 68px;
    right: 12px;
    left: 12px;
    width: auto;
    max-height: calc(100dvh - 84px);
  }
}
@media (max-width: 560px) {
  #root {
    padding: 10px 10px 92px;
  }
  .app-shell__content,
  .hero-card,
  .section-card,
  .detail-card,
  .quiz-card {
    padding: 16px;
  }
  .top-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .course-hero {
    margin: -16px -16px 0;
  }
  .course-hero__inner {
    padding: 20px 16px 24px;
  }
  .course-hero__logo {
    width: min(220px, 56vw);
  }
  .course-hero__media-primary {
    min-height: 280px;
  }
  .course-meta-card,
  .course-fact,
  .course-highlight,
  .course-panel,
  .course-hero__callout,
  .course-route,
  .course-resume-card,
  .course-step,
  .course-gallery__item,
  .course-agenda__item {
    padding: 16px;
  }
  .knobology-frame__cine-strip {
    width: calc(100% - 28px);
  }
  .eu-me2__caption {
    font-size: 0.74rem;
  }
  .knobology-console__hero {
    flex-direction: column;
    align-items: flex-start;
  }
  .knobology-workbench {
    grid-template-columns: 1fr;
  }
  .top-header__meta,
  .lecture-card__header,
  .lecture-card__actions,
  .section-card__heading,
  .learn-more-drawer__header,
  .detail-card__header,
  .quiz-card__header {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
  .aabip-video-library__list-item {
    grid-template-columns: 1fr;
  }
  .aabip-video-library__playlist-header {
    flex-direction: column;
  }
  .schedule-item,
  .slider-field,
  .resume-card,
  .progress-row,
  .course-agenda__item,
  .course-resume-card,
  .course-step {
    grid-template-columns: 1fr;
  }
}