.flash[data-astro-cid-kuiym4kv]{margin-top:3rem}.flash[data-astro-cid-kuiym4kv] h2[data-astro-cid-kuiym4kv]{margin-top:0}.flash-grid[data-astro-cid-kuiym4kv]{gap:10px;display:grid}.flash-card[data-astro-cid-kuiym4kv]{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius-l)}.flash-card[data-astro-cid-kuiym4kv][open]{border-color:var(--ink)}.flash-card[data-astro-cid-kuiym4kv] summary[data-astro-cid-kuiym4kv]{cursor:pointer;align-items:baseline;gap:12px;padding:16px 20px;font-weight:700;list-style:none;display:flex}.flash-card[data-astro-cid-kuiym4kv] summary[data-astro-cid-kuiym4kv]::-webkit-details-marker{display:none}.flash-card[data-astro-cid-kuiym4kv] summary[data-astro-cid-kuiym4kv]:after{content:"Show answer";color:var(--ink-2);white-space:nowrap;margin-left:auto;padding-left:8px;font-size:.8rem;font-weight:600}.flash-card[data-astro-cid-kuiym4kv][open] summary[data-astro-cid-kuiym4kv]:after{content:"Hide"}.flash-card[data-astro-cid-kuiym4kv] p[data-astro-cid-kuiym4kv]{font-variation-settings:"CASL" 1, "MONO" 0;margin:0;padding:0 20px 18px 54px}.flash-n[data-astro-cid-kuiym4kv]{color:var(--ink-2);flex-shrink:0;min-width:22px}@media (width<=560px){.flash-card[data-astro-cid-kuiym4kv] p[data-astro-cid-kuiym4kv]{padding-left:20px}}.learned[data-astro-cid-4t7z4gck]{margin:2.5rem 0 0}.learned[data-astro-cid-4t7z4gck] p[data-astro-cid-4t7z4gck]{margin-top:.6rem}.when-on[data-astro-cid-4t7z4gck]{display:none}.learned-btn[data-astro-cid-4t7z4gck][aria-pressed=true]{background:var(--marker);color:var(--marker-ink);border-color:var(--marker-ink)}.learned-btn[data-astro-cid-4t7z4gck][aria-pressed=true] .when-on[data-astro-cid-4t7z4gck]{display:inline}.learned-btn[data-astro-cid-4t7z4gck][aria-pressed=true] .when-off[data-astro-cid-4t7z4gck]{display:none}.lightbox[data-astro-cid-utnzf2kr]{color:#eef3fa;background:#0b1426;border:0;width:100vw;max-width:none;height:100dvh;max-height:none;padding:0}.lightbox[data-astro-cid-utnzf2kr]::backdrop{background:#09101e99}.lb-bar[data-astro-cid-utnzf2kr]{z-index:1;justify-content:space-between;align-items:center;padding:10px 16px;display:flex;position:sticky;top:0}.lb-close[data-astro-cid-utnzf2kr]{font:inherit;color:#13233f;cursor:pointer;background:#ffd84d;border:0;border-radius:999px;padding:8px 16px;font-weight:700}.lb-stage[data-astro-cid-utnzf2kr]{place-items:center;height:calc(100dvh - 56px);padding:0 12px 12px;display:grid;overflow:auto}.lb-stage[data-astro-cid-utnzf2kr] img[data-astro-cid-utnzf2kr]{cursor:zoom-in;border-radius:8px;max-width:100%;max-height:100%}.lightbox[data-astro-cid-utnzf2kr].zoomed .lb-stage[data-astro-cid-utnzf2kr]{place-items:start}.lightbox[data-astro-cid-utnzf2kr].zoomed .lb-stage[data-astro-cid-utnzf2kr] img[data-astro-cid-utnzf2kr]{cursor:zoom-out;width:auto;max-width:none;max-height:none}.crumbs[data-astro-cid-cdhfwjfe]{margin-bottom:1rem}.crumbs[data-astro-cid-cdhfwjfe] a[data-astro-cid-cdhfwjfe]{color:var(--ink-2)}.lesson-head[data-astro-cid-cdhfwjfe] h1[data-astro-cid-cdhfwjfe]{font-size:clamp(2rem,6vw,3rem)}.byline[data-astro-cid-cdhfwjfe]{margin:.9rem 0 1.5rem}.oneliner[data-astro-cid-cdhfwjfe]{border-left:6px solid var(--marker);margin:0 0 2rem;padding-left:18px;font-size:clamp(1.25rem,3vw,1.5rem);font-weight:650;line-height:1.4}.hero[data-astro-cid-cdhfwjfe]{border-radius:var(--radius-l);border:1px solid var(--rule);width:100%;max-width:900px;margin:0 0 2rem;display:block}.pager[data-astro-cid-cdhfwjfe]{border-top:2px solid var(--ink);grid-template-columns:1fr 1fr;gap:20px;margin-top:3.5rem;padding-top:16px;display:grid}.pager[data-astro-cid-cdhfwjfe] a[data-astro-cid-cdhfwjfe]{color:var(--ink);flex-direction:column;gap:4px;text-decoration:none;display:flex}.pager[data-astro-cid-cdhfwjfe] .pt[data-astro-cid-cdhfwjfe]{font-weight:750}.pager[data-astro-cid-cdhfwjfe] a[data-astro-cid-cdhfwjfe]:hover .pt[data-astro-cid-cdhfwjfe]{text-decoration:underline;text-decoration-color:var(--marker);text-decoration-thickness:4px}.pager[data-astro-cid-cdhfwjfe] .right[data-astro-cid-cdhfwjfe]{text-align:right;align-items:flex-end}@media (width<=560px){.pager[data-astro-cid-cdhfwjfe]{grid-template-columns:1fr}.pager[data-astro-cid-cdhfwjfe] .right[data-astro-cid-cdhfwjfe]{text-align:left;align-items:flex-start}}