.NotFoundPage_page__QdXkv{--nf-ease:cubic-bezier(0.2,0.7,0.2,1);--nf-fast:160ms;--nf-ink:rgb(var(--home-ink));--nf-muted:rgb(var(--home-muted));--nf-line:rgb(var(--home-ink)/0.09);--nf-curve:var(--home-math);position:relative;isolation:isolate;overflow-x:clip;display:flex;flex-direction:column;justify-content:center;gap:clamp(3rem,6vw,4.5rem);min-height:calc(100svh - var(--header-h));max-width:calc(1320px + 6rem);margin-inline:auto;padding:clamp(1.25rem,4vw,3rem) 1rem clamp(3rem,6vw,5rem)}@media (min-width:40rem){.NotFoundPage_page__QdXkv{padding-inline:1.5rem}}@media (min-width:64rem){.NotFoundPage_page__QdXkv{padding-inline:3rem}}.NotFoundPage_hero__tokpE{display:grid;grid-template-columns:minmax(0,1fr);grid-template-areas:"status" "title" "figure" "lede" "actions";align-items:start}.NotFoundPage_status__DyaQm{grid-area:status;justify-self:start;display:inline-flex;align-items:center;gap:.625rem;border-radius:999px;padding:.3rem .95rem .3rem 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1px),linear-gradient(90deg,rgb(var(--home-ink)/.05) 1px,transparent 1px);background-size:2.5rem 2.5rem;background-position:50%;mask-image:radial-gradient(ellipse at center,black 35%,transparent 72%);pointer-events:none}.NotFoundPage_lede__eg1DH{grid-area:lede;margin-top:2rem;max-width:35rem;font-size:clamp(1.125rem,1.02rem + .4vw,1.3125rem);font-weight:400;line-height:1.55;color:var(--nf-muted)}.NotFoundPage_lede__eg1DH .katex{font-size:1.1em;color:var(--nf-ink);white-space:nowrap}.NotFoundPage_actions__80o0C{grid-area:actions;margin-top:1.75rem;display:flex;flex-wrap:wrap;gap:.75rem}@media (min-width:64rem){.NotFoundPage_hero__tokpE{grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);grid-template-rows:1fr auto auto auto auto 1fr;grid-template-areas:".       figure" "status  figure" "title   figure" "lede    figure" "actions figure" ".       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infinite}.NotFoundPage_primary__0Ey_g:hover{background:rgb(var(--home-ember-deep));transform:translateY(-2px)}.NotFoundPage_secondary__fzcqG{padding:.5rem 1.5rem .5rem 1.25rem;border:1.5px solid rgb(var(--home-ink)/.18);color:var(--nf-ink);background:white}.NotFoundPage_secondary__fzcqG:hover{border-color:var(--nf-ink);transform:translateY(-2px)}.NotFoundPage_primary__0Ey_g:active,.NotFoundPage_secondary__fzcqG:active{transform:translateY(0) scale(.97)}.NotFoundPage_primary__0Ey_g:focus-visible,.NotFoundPage_secondary__fzcqG:focus-visible{outline:2px solid rgb(var(--home-ember));outline-offset:3px}.NotFoundPage_arrow__yth3m,.NotFoundPage_houseIcon__b_0_O{width:1.125rem;height:1.125rem;flex:none}.NotFoundPage_arrow__yth3m{transition:transform var(--nf-fast) var(--nf-ease)}.NotFoundPage_primary__0Ey_g:hover .NotFoundPage_arrow__yth3m{transform:translateX(3px)}.NotFoundPage_houseIcon__b_0_O{color:var(--nf-muted);transition:color var(--nf-fast) ease-out}.NotFoundPage_secondary__fzcqG:hover .NotFoundPage_houseIcon__b_0_O{color:var(--nf-ink)}@keyframes NotFoundPage_nf-glow__cbFWj{50%{box-shadow:var(--nf-primary-shadow),0 0 0 6px rgb(var(--home-ember-glow)/.18)}}.NotFoundPage_plate__w7a0H{overflow:hidden;border-radius:1.75rem;border:1px solid var(--nf-line);background:white;box-shadow:0 1px 2px rgb(var(--home-ink)/.04),0 32px 64px -40px rgb(var(--home-ink)/.4)}.NotFoundPage_expression__6AGqN{display:flex;align-items:center;gap:.875rem;min-height:4.75rem;padding:.5rem 1.375rem;border-bottom:1px solid var(--nf-line);color:var(--nf-ink)}.NotFoundPage_expressionDot__CAbHg{flex:none;width:.75rem;height:.75rem;border-radius:999px;background:rgb(var(--nf-curve))}.NotFoundPage_expressionMath__Eeilj{font-size:1.0625rem}.NotFoundPage_graph___soq4{position:relative;aspect-ratio:16/11}@media (min-width:40.001rem) and (max-width:63.999rem){.NotFoundPage_graph___soq4{aspect-ratio:2/1}}@media (max-width:40rem){.NotFoundPage_page__QdXkv{padding-top:.75rem}.NotFoundPage_title__Edrmw{margin-top:1rem}.NotFoundPage_figure__TyXpo,.NotFoundPage_lede__eg1DH{margin-top:1.5rem}.NotFoundPage_actions__80o0C{margin-top:1.25rem;gap:.5rem}.NotFoundPage_primary__0Ey_g,.NotFoundPage_secondary__fzcqG{flex:1 1 auto}.NotFoundPage_primary__0Ey_g{padding-inline:1.25rem 1rem}.NotFoundPage_secondary__fzcqG{padding-inline:1rem 1.15rem}.NotFoundPage_expression__6AGqN{min-height:4rem;padding-inline:1.125rem}.NotFoundPage_graph___soq4{aspect-ratio:1/.64}}.NotFoundPage_drawing__7FJh2{position:absolute;inset:0;display:block}.NotFoundPage_gridLine__QPQSC{stroke:rgb(var(--home-ink)/.07);stroke-width:1;shape-rendering:crispEdges}.NotFoundPage_axis__jTOcY{stroke:rgb(var(--home-ink)/.5);stroke-width:1.25}.NotFoundPage_hereLabel__TMKzU,.NotFoundPage_tickHole__D2vgz,.NotFoundPage_tick__WrB65{font-family:var(--font-sans),system-ui,sans-serif;font-variant-numeric:tabular-nums;paint-order:stroke;stroke:white;stroke-linejoin:round}.NotFoundPage_tick__WrB65{font-size:12px;fill:var(--nf-muted);stroke-width:4px}.NotFoundPage_tickHole__D2vgz{font-size:14px;font-weight:700;fill:rgb(var(--home-ember-deep));stroke-width:4px}.NotFoundPage_curve__XDGZy{fill:none;stroke:rgb(var(--nf-curve));stroke-width:2.75;stroke-linecap:round}.NotFoundPage_halo__pMKc9{fill:rgb(var(--home-ember)/.24);transform-box:fill-box;transform-origin:center;transition:transform .26s var(--nf-ease),fill .26s ease-out}.NotFoundPage_ring__aIX96{fill:white;stroke:rgb(var(--nf-curve));stroke-width:2.5}.NotFoundPage_holeTarget__V6U3t{fill:transparent;pointer-events:all}.NotFoundPage_leader__c2iJH{stroke:rgb(var(--home-ember));stroke-width:1.5;stroke-linecap:round;stroke-dasharray:3 4;transition:stroke-dasharray .26s var(--nf-ease),stroke-width .26s var(--nf-ease)}.NotFoundPage_hereLabel__TMKzU{font-size:15px;font-weight:600;fill:rgb(var(--home-ember-deep));stroke-width:5px}.NotFoundPage_hole__uj6yP:hover .NotFoundPage_halo__pMKc9,.NotFoundPage_page__QdXkv:has(.NotFoundPage_undefinedWord__jqp13:hover) .NotFoundPage_halo__pMKc9{transform:scale(1.45);fill:rgb(var(--home-ember)/.3)}.NotFoundPage_drawing__7FJh2:has(.NotFoundPage_hole__uj6yP:hover) .NotFoundPage_leader__c2iJH,.NotFoundPage_page__QdXkv:has(.NotFoundPage_undefinedWord__jqp13:hover) .NotFoundPage_leader__c2iJH{stroke-width:2;stroke-dasharray:12 0}.NotFoundPage_actions__80o0C,.NotFoundPage_closest__vbBF2,.NotFoundPage_lede__eg1DH,.NotFoundPage_plate__w7a0H,.NotFoundPage_status__DyaQm,.NotFoundPage_title__Edrmw{animation:NotFoundPage_nf-fade__1hh6k .48s ease-out both}.NotFoundPage_primary__0Ey_g{animation:NotFoundPage_nf-fade__1hh6k .48s ease-out both,NotFoundPage_nf-glow__cbFWj 2.6s var(--nf-ease) 1.8s infinite}.NotFoundPage_closest__vbBF2{animation-delay:.16s}.NotFoundPage_curveLeft__cJ5Qv,.NotFoundPage_curveRight___lDy_{stroke-dasharray:1;stroke-dashoffset:1;animation:NotFoundPage_nf-draw__X4W7U .64s cubic-bezier(.45,0,.55,1) forwards}.NotFoundPage_curveLeft__cJ5Qv{animation-delay:.26s}.NotFoundPage_curveRight___lDy_{animation-delay:1.06s}.NotFoundPage_hole__uj6yP{opacity:0;animation:NotFoundPage_nf-fade__1hh6k .28s ease-out .86s forwards}.NotFoundPage_here__0hZyk{opacity:0;animation:NotFoundPage_nf-fade__1hh6k .36s ease-out 1.6s forwards}@keyframes NotFoundPage_nf-draw__X4W7U{to{stroke-dashoffset:0}}@keyframes NotFoundPage_nf-fade__1hh6k{0%{opacity:0}to{opacity:1}}.NotFoundPage_closest__vbBF2{display:grid;gap:1.25rem;padding-top:clamp(2rem,4vw,2.75rem);border-top:1px solid var(--nf-line)}.NotFoundPage_closestTitle__Lr8zm{font-family:var(--font-serif),Georgia,serif;font-variant-numeric:lining-nums;font-size:clamp(1.5rem,1.2rem + 1vw,2rem);font-weight:500;line-height:1.15;letter-spacing:-.015em;color:var(--nf-ink)}.NotFoundPage_lessons__ndgMt{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,18rem),1fr));gap:.75rem}.NotFoundPage_lesson__yiaNx{display:flex;align-items:center;gap:.875rem;height:100%;min-height:5.25rem;padding:.875rem 1.125rem .875rem .875rem;border-radius:1.25rem;border:1px solid rgb(var(--home-ink)/.1);background:white;transition:border-color var(--nf-fast) ease-out,box-shadow var(--nf-fast) ease-out,transform var(--nf-fast) ease-out}.NotFoundPage_lesson__yiaNx:hover{border-color:rgb(var(--subject)/.5);box-shadow:0 16px 32px -22px rgb(var(--subject)/.6);transform:translateY(-2px)}.NotFoundPage_lesson__yiaNx:active{transform:translateY(0) scale(.985)}.NotFoundPage_lesson__yiaNx:focus-visible{outline:2px solid rgb(var(--subject));outline-offset:3px}.NotFoundPage_lessonIcon__1VeeW{flex:none;display:grid;place-items:center;width:2.75rem;height:2.75rem;border-radius:.875rem;color:rgb(var(--subject));background:rgb(var(--subject-tint));transition:background-color var(--nf-fast) ease-out,color var(--nf-fast) ease-out}.NotFoundPage_lesson__yiaNx:hover .NotFoundPage_lessonIcon__1VeeW{color:white;background:rgb(var(--subject))}.NotFoundPage_lessonText__A8YXE{flex:1;min-width:0;display:grid;gap:.2rem}.NotFoundPage_lessonTitle__p5ZrG{font-size:var(--type-read);font-weight:500;line-height:1.3;color:var(--nf-ink)}.NotFoundPage_lessonMeta__bx6AH{font-size:var(--type-label);line-height:1.35;color:var(--nf-muted)}.NotFoundPage_lessonArrow__KPaCN{flex:none;width:1.125rem;height:1.125rem;color:rgb(var(--home-ink)/.35);transition:color var(--nf-fast) ease-out,transform var(--nf-fast) var(--nf-ease)}.NotFoundPage_lesson__yiaNx:hover .NotFoundPage_lessonArrow__KPaCN{color:rgb(var(--subject));transform:translateX(3px)}@media (prefers-reduced-motion:reduce){.NotFoundPage_actions__80o0C,.NotFoundPage_closest__vbBF2,.NotFoundPage_here__0hZyk,.NotFoundPage_hole__uj6yP,.NotFoundPage_lede__eg1DH,.NotFoundPage_plate__w7a0H,.NotFoundPage_primary__0Ey_g,.NotFoundPage_status__DyaQm,.NotFoundPage_title__Edrmw{animation:none;opacity:1}.NotFoundPage_curveLeft__cJ5Qv,.NotFoundPage_curveRight___lDy_{animation:none;stroke-dasharray:none;stroke-dashoffset:0}.NotFoundPage_hole__uj6yP:hover .NotFoundPage_halo__pMKc9,.NotFoundPage_lesson__yiaNx:active,.NotFoundPage_lesson__yiaNx:hover,.NotFoundPage_lesson__yiaNx:hover .NotFoundPage_lessonArrow__KPaCN,.NotFoundPage_page__QdXkv:has(.NotFoundPage_undefinedWord__jqp13:hover) .NotFoundPage_halo__pMKc9,.NotFoundPage_primary__0Ey_g:active,.NotFoundPage_primary__0Ey_g:hover,.NotFoundPage_primary__0Ey_g:hover .NotFoundPage_arrow__yth3m,.NotFoundPage_secondary__fzcqG:active,.NotFoundPage_secondary__fzcqG:hover{transform:none}}