html[data-learning-page]{--learning-nav-height:2.8125rem;--education-offset:calc(var(--header-offset,6rem) + var(--learning-nav-height));scroll-padding-top:var(--education-offset)}.learning-navigation{top:calc(var(--header-offset,6rem) - 12px);z-index:40;background:var(--paper);color:var(--ink);border-bottom:1px solid var(--line);position:sticky}.learning-navigation-inner{align-items:center;gap:1.8rem;max-width:100rem;margin:auto;padding-inline:clamp(1.25rem,5vw,5rem);display:flex}.learning-navigation-label{text-transform:uppercase;letter-spacing:.12em;color:var(--bronze-on-light);white-space:nowrap;font-size:.6875rem;font-weight:700}.learning-navigation-links{align-items:stretch;gap:1.6rem;display:flex}.learning-navigation a{white-space:nowrap;border-bottom:2px solid #0000;align-items:center;min-height:2.75rem;font-size:.875rem;text-decoration:none;display:inline-flex}.learning-navigation a:hover{color:var(--bronze-on-light)}.learning-navigation a[aria-current]{border-bottom-color:var(--bronze-on-light);font-weight:700}.learning-navigation a:focus-visible,.learning-navigation summary:focus-visible{outline:2px solid var(--bronze-on-light);outline-offset:-3px}.learning-navigation-menu{width:100%;display:none}.learning-navigation-compact .learning-navigation-label,.learning-navigation-compact .learning-navigation-links{display:none}.learning-navigation-compact .learning-navigation-menu{display:block}.learning-navigation-menu summary{cursor:pointer;justify-content:space-between;align-items:center;gap:1rem;min-height:2.75rem;font-size:.875rem;list-style:none;display:flex}.learning-navigation-menu summary::-webkit-details-marker{display:none}.learning-navigation-menu summary strong{font-weight:600}.learning-navigation-toggle{color:var(--bronze-on-light);flex-shrink:0;font-size:.8125rem}.learning-navigation-options{border-bottom:1px solid var(--line);background:var(--paper);max-height:calc(100dvh - var(--education-offset) - 1rem);grid-template-columns:repeat(2,minmax(0,1fr));gap:.25rem 1rem;padding:.75rem clamp(1.25rem,5vw,5rem) 1rem;display:grid;position:absolute;inset:100% 0 auto;overflow-y:auto;box-shadow:0 .6rem 1rem #11141216}.learning-navigation-options a{min-height:3rem}.learning-entry{margin-top:1.4rem}.learning-entry .learning-entry-actions{flex-wrap:wrap;align-items:center;gap:.7rem 1.5rem;display:flex}.learning-entry a{min-height:2.75rem}.learning-entry a[aria-disabled=true]{opacity:.6;cursor:progress}.learning-entry .button:hover{background:var(--bronze-on-dark);color:var(--ink)}.learning-entry-secondary{text-underline-offset:.2rem;align-items:center;font-size:.9rem;text-decoration:underline;display:inline-flex}.learning-entry>p{color:#c2bdae;max-width:50rem;margin:.8rem 0 0;font-size:.85rem;line-height:1.5}.lesson-return{background:var(--paper-deep);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:baseline;gap:.25rem 1rem;padding:.65rem clamp(1.25rem,5vw,5rem);display:flex}.lesson-return[hidden]{display:none}.lesson-return>span{text-transform:uppercase;letter-spacing:.1em;color:var(--bronze-on-light);font-size:.7rem}.lesson-return a{text-underline-offset:.2rem;align-items:center;min-height:2.75rem;font-size:.9rem;text-decoration:underline;display:inline-flex}.lesson-return-bottom{border-top:1px solid var(--line)}html[data-learning-page] .academy-lesson{scroll-margin-top:0}@media (width<=760px){.learning-navigation-label,.learning-navigation-links{display:none}.learning-navigation-menu{display:block}}@media (width<=480px){.learning-navigation-options{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.learning-navigation *{scroll-behavior:auto}}