.mc-learning {
  --mint: var(--color-text);
  --fg: var(--color-text);
  --fg-2: var(--color-text-secondary);
}
.mc-learning [hidden] { display: none !important; }
.mc-learning .mc-page-intro { padding-bottom: 12px; }
.mc-learning .lh-lessons { padding-top: 12px; }
.mc-learning :is(.lh-worked, .lh-ref, .lh-gotchas, .lh-card-viewer) {
  font-family: var(--font-clinical);
  font-size: 17px;
  line-height: 1.5;
}
.mc-learning :is(.lh-sec-head, .lh-recall__copy) { max-width: 65ch; }
.mc-learning :is(.lh-lab-tabs, .lh-ref__tabs) {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.mc-learning .lh-lab-tabs__label { color: var(--color-text-secondary); font-size: 15px; }
.mc-learning .vt-seg { display: flex; flex-wrap: wrap; gap: 6px; }
.mc-learning .vt-seg__btn {
  min-height: 44px;
  padding: 9px 18px;
  border: 1px solid var(--color-border-strong);
  border-radius: 5px;
  color: var(--color-text);
  background: var(--color-surface);
  font: 600 16px/1.3 var(--font-body);
  cursor: pointer;
}
.mc-learning .vt-seg__btn[aria-selected='true'] { color: var(--color-surface); background: var(--color-text); border-color: var(--color-text); }
.mc-learning .lh-worked__grid { display: grid; grid-template-columns: 1.12fr 1fr; align-items: start; gap: 32px; }
.mc-learning .lh-worked__grid > * { min-width: 0; }
.mc-learning .lh-scan__head { margin-bottom: 12px; }
.mc-learning .lh-scan__title { font-size: 15px; color: var(--color-text-secondary); }
.mc-learning .lh-image-button { display: block; width: 100%; padding: 0; border: 1px solid var(--color-border-strong); border-radius: 4px; background: var(--color-bg-subtle); color: var(--color-text); text-align: left; cursor: zoom-in; }
.mc-learning .lh-image-button img { display: block; width: 100%; height: auto; object-fit: contain; }
.mc-learning .lh-image-button > span { display: block; padding: 10px 12px; font: 600 15px/1.4 var(--font-body); }
.mc-learning .lh-worked__side h2 { font-size: 25px; }
.mc-learning :is(.lh-worked, .lh-gotcha, .lh-recall__copy) p + p { margin-top: 12px; }
.mc-learning .lh-finding__range { margin-top: 12px; }
.mc-learning .lh-gotcha__sub + p { margin-top: 12px; }
.mc-learning .lh-scan__cap { display: flex; align-items: start; gap: 8px; margin-top: 14px; color: var(--color-text-secondary); font-size: 15px; }
.mc-learning svg { flex-shrink: 0; width: 20px; height: 20px; }
.mc-learning .lh-findings { border-top: 1px solid var(--color-border-strong); margin-top: 20px; }
.mc-learning .lh-finding { border-bottom: 1px solid var(--color-border-strong); }
.mc-learning .lh-finding__head { display: grid; grid-template-columns: 24px minmax(0, 1fr) auto 18px; gap: 8px; align-items: center; width: 100%; min-height: 52px; padding: 12px 0; border: 0; background: none; color: var(--color-text); font: inherit; text-align: left; cursor: pointer; }
.mc-learning .lh-finding__ix { color: var(--color-text-secondary); font-size: 14px; }
.mc-learning .lh-finding__name { font-weight: 600; }
.mc-learning .lh-finding__ref { color: var(--color-text-secondary); font-size: 14px; }
.mc-learning .lh-finding__chev { width: 18px; }
.mc-learning .lh-finding__head[aria-expanded='true'] .lh-finding__chev { transform: rotate(180deg); }
.mc-learning .lh-finding__body { padding: 0 0 12px 32px; }
.mc-learning .lh-finding__range { color: var(--color-text-secondary); font-size: 15px; }
.mc-learning .vt-teach { margin-top: 20px; border-left: 3px solid var(--color-brand); padding: 4px 0 4px 16px; }
.mc-learning :is(.vt-teach__label, .vt-label, .lh-gotcha__label) { font-weight: 650; }
.mc-learning .vt-teach p { margin-bottom: 0; }
.mc-learning .lh-ctr-reference { display: grid; grid-template-columns: minmax(180px, 280px) minmax(0, 65ch); gap: 24px; align-items: center; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--color-border-strong); }
.mc-learning .lh-ref { margin-top: 40px; max-width: 780px; }
.mc-learning .lh-ref__tabs { margin-top: 20px; }
.mc-learning .lh-ref__row { display: grid; grid-template-columns: minmax(0, 1fr) 110px 150px; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--color-border-strong); }
.mc-learning .lh-ref__range { font-weight: 600; }
.mc-learning .lh-ref__unit { color: var(--color-text-secondary); }
.mc-learning .tnum { font-variant-numeric: tabular-nums; }
.mc-learning .vt-fn { margin-top: 14px; color: var(--color-text-secondary); font-size: 15px; }
.mc-learning .lh-gotchas { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 24px; margin-bottom: 24px; align-items: start; }
.mc-learning .lh-gotcha { border-top: 1px solid var(--color-border-strong); padding-top: 18px; }
.mc-learning .lh-gotcha__head { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 14px; color: var(--color-text-secondary); font-size: 14px; }
.mc-learning .lh-gotcha__tag { display: inline-flex; align-items: center; gap: 6px; }
.mc-learning .lh-gotcha__sub { color: var(--color-text-secondary); }
.mc-learning .lh-gotcha__toggle { gap: 10px; margin-top: 8px; }
.mc-learning .lh-gotcha__reveal { margin-top: 18px; }
.mc-learning .lh-gotcha__disc { border-top: 1px solid var(--color-border-strong); padding-top: 12px; margin-top: 18px; }
.mc-learning .lh-list { padding-left: 20px; }
.mc-learning .lh-list li + li { margin-top: 10px; }
.mc-learning .lh-recall__grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; align-items: start; }
.mc-learning .lh-flip { display: block; width: 100%; min-height: 250px; padding: 24px; border: 1px solid var(--color-border-strong); border-radius: 6px; background: var(--color-bg-subtle); color: var(--color-text); text-align: left; cursor: pointer; font: inherit; }
.mc-learning .vt-flip__inner { display: block; }
.mc-learning .lh-cardface { display: flex; flex-direction: column; gap: 22px; }
.mc-learning .lh-cardface[aria-hidden='true'] { display: none; }
.mc-learning .lh-cardface__label { font-size: 15px; color: var(--color-text-secondary); }
.mc-learning .lh-cardface__q { font-size: 25px; line-height: 1.35; }
.mc-learning .lh-cardface__hint { display: flex; align-items: center; gap: 8px; font-size: 15px; color: var(--color-text-secondary); }
.mc-learning .vt-audio { display: flex; align-items: center; gap: 14px; margin-top: 12px; }
.mc-learning :is(.vt-audio__play, .lh-cardnav__btn) { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; padding: 10px; border: 1px solid var(--color-border-strong); border-radius: 5px; background: var(--color-surface); color: var(--color-text); cursor: pointer; }
.mc-learning .vt-audio__play { color: var(--color-surface); background: var(--color-text); border-color: var(--color-text); }
.mc-learning .vt-eq { display: flex; height: 28px; align-items: center; gap: 3px; flex: 1; }
.mc-learning .vt-eq i { width: 3px; height: 4px; background: var(--color-text-secondary); }
.mc-learning .is-playing .vt-eq i { background: var(--color-brand); }
.mc-learning .vt-audio__time { font-size: 15px; }
.mc-learning .lh-cardnav { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 12px; }
.mc-learning .lh-cardnav__count { font-size: 15px; color: var(--color-text-secondary); }
.mc-learning button:disabled { opacity: .45; cursor: default; }
.mc-learning button:focus-visible { outline: 3px solid var(--color-brand); outline-offset: 3px; }
.mc-learning button:hover:not(:disabled) { border-color: var(--color-text-secondary); }
@media (max-width: 900px) {
  .mc-learning .lh-worked__grid { grid-template-columns: 1fr; gap: 24px; }
  .mc-learning .lh-gotchas { grid-template-columns: 1fr; }
  .mc-learning .lh-gotcha { max-width: 70ch; }
}
@media (max-width: 600px) {
  .mc-learning .lh-recall__grid { grid-template-columns: 1fr; gap: 20px; }
  .mc-learning .lh-ref__row { grid-template-columns: minmax(0, 1fr) 80px; gap: 4px 12px; }
  .mc-learning .lh-ref__unit { grid-column: 1 / -1; font-size: 14px; }
  .mc-learning .lh-finding__head { grid-template-columns: 22px minmax(0, 1fr) 18px; }
  .mc-learning .lh-finding__ref { grid-column: 2; grid-row: 2; }
  .mc-learning .lh-finding__chev { grid-column: 3; grid-row: 1 / 3; }
  .mc-learning .lh-ctr-reference { grid-template-columns: 1fr; }
  .mc-learning .lh-flip { padding: 20px; }
  .mc-learning .lh-cardface__q { font-size: 22px; }
}