.sub-hero{padding-top:clamp(120px,16vw,180px);padding-bottom:clamp(30px,5vw,60px);position:relative}.sub-hero h1{font-size:clamp(2.8rem,7vw,5.6rem)}.sub-hero .lead{margin-top:22px}.crumbs{display:flex;gap:.5em;align-items:center;font-family:var(--display);font-weight:500;font-size:.9rem;color:var(--ink-soft)}.crumbs a:hover{color:var(--orange)}.lesson{position:relative}.lesson__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}.lesson--rev .lesson__media{order:2}.lesson__media{position:relative}.lesson__img{aspect-ratio:4/4.6;border-radius:var(--r-xl);box-shadow:var(--shadow-lg);object-fit:cover}.lesson__age{font-family:var(--display);font-weight:600;font-size:clamp(2.6rem,5vw,4.2rem);line-height:.95}.lesson__age small{font-size:.32em;display:block;letter-spacing:.14em;text-transform:uppercase;color:var(--clay);margin-bottom:.4em;font-weight:600}.checklist{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:16px}.checklist li{display:flex;gap:14px;align-items:flex-start}.checklist .tick{flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--orange);color:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:600;font-size:.9rem;margin-top:2px}.checklist b{font-family:var(--display);font-weight:600;display:block}.checklist span{color:var(--ink-soft);font-size:.98rem}.media-badge{position:absolute;width:120px;height:120px;right:-22px;top:-22px}.badge-spin{width:100%;height:100%;animation:spin 20s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.badge-spin{animation:none}}.badge-spin text{font-family:var(--display);font-weight:600;font-size:11px;letter-spacing:.05em;fill:#fff;text-transform:uppercase}.badge-core{position:absolute;inset:0;display:grid;place-items:center}.badge-core .dotbig{width:42px;height:42px;border-radius:50%;background:#fff}.goodtoknow{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2vw,22px)}.gtk{padding:clamp(20px,2.6vw,30px)}.gtk .num{font-family:var(--display);font-weight:600;font-size:2rem;color:var(--orange)}.gtk b{font-family:var(--display);font-weight:600;display:block;margin-top:6px}.gtk p{margin:6px 0 0;color:var(--ink-soft);font-size:.96rem}@media (max-width:820px){.lesson__grid{grid-template-columns:1fr}.lesson--rev .lesson__media{order:0}.lesson__media{max-width:480px}.goodtoknow{grid-template-columns:1fr}}