.lesson_lessonShell__rAsbo{width:100%;max-width:90rem;margin-left:auto;margin-right:auto;padding-left:clamp(1rem,2.6vw,2.5rem);padding-right:clamp(1rem,2.6vw,2.5rem)}.lesson_lessonHeader__Wg5tn,.lesson_lessonLayout__FT_HP{max-width:78rem;margin-left:auto;margin-right:auto;width:100%}.lesson_lessonLayout__FT_HP{display:grid;grid-template-columns:1fr;grid-gap:var(--space-6);gap:var(--space-6);align-items:flex-start}.lesson_lessonMedia__4adFb,.lesson_lessonNotes__RpgHm{min-width:0}.lesson_lessonMediaInner__KkiV8,.lesson_lessonRailInner__jtvc6{display:flex;flex-direction:column;gap:var(--space-3)}.lesson_lessonRailInner__jtvc6{padding:var(--space-4);border:var(--border-1) solid var(--color-border);border-radius:var(--radius-2);background:var(--color-surface);box-shadow:var(--shadow-glass)}.lesson_railGroup__h3ZpW{display:flex;flex-direction:column;gap:var(--space-2);align-items:flex-start}.lesson_railGroup__h3ZpW+.lesson_railGroup__h3ZpW{padding-top:var(--space-3);border-top:var(--border-1) solid var(--color-border-soft)}.lesson_railNav___XpMJ{display:flex;flex-wrap:wrap;gap:var(--space-2);align-items:center}@media (min-width:72rem){.lesson_lessonLayout__FT_HP{grid-template-columns:minmax(0,1.35fr) minmax(20rem,.85fr);justify-content:center;gap:3.25rem;gap:clamp(2.5rem,4vw,4.25rem)}.lesson_lessonMedia__4adFb{align-self:start}.lesson_lessonMediaInner__KkiV8,.lesson_lessonNotes__RpgHm{position:-webkit-sticky;position:sticky;top:6rem}.lesson_lessonNotes__RpgHm{max-height:calc(100dvh - 6rem - var(--space-6));overflow-y:auto;padding-right:var(--space-3);scrollbar-width:thin;scrollbar-color:var(--color-border-strong) transparent;-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 2rem,#000);mask-image:linear-gradient(180deg,transparent 0,#000 2rem,#000)}}@media (min-width:96rem){.lesson_lessonHeader__Wg5tn,.lesson_lessonLayout__FT_HP{max-width:88rem}.lesson_lessonLayout__FT_HP{grid-template-columns:minmax(0,1.5fr) minmax(22rem,.9fr);gap:4.125rem;gap:clamp(3.25rem,4.5vw,5rem)}}