.demo{--serif-leitor: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, "Times New Roman", serif;--fundo: var(--folha);position:relative;border:2px solid var(--borda-3d);border-radius:var(--r-24);background:var(--folha);box-shadow:0 var(--base-3d) 0 var(--borda-3d),var(--sombra-folha);overflow:hidden}.demo-barra{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;padding:14px 24px;font:500 13px/1.3 var(--sans);color:var(--texto-2)}.demo-documento{display:inline-flex;gap:6px;white-space:nowrap}.demo-controles{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.demo-atencao{display:inline-flex;align-items:center;gap:2px}.demo-rotulo{margin-right:6px;color:var(--texto-1)}.demo-ponto{display:grid;place-items:center;width:24px;height:24px;padding:0;border:0;border-radius:50%;background:transparent;cursor:pointer}.demo-ponto:before{content:"";width:7px;height:7px;border-radius:50%;border:1px solid var(--texto-1);background:transparent;transition:background .15s}.demo-ponto[data-cheio=true]:before{background:var(--texto-1)}.demo-ponto:hover:before{border-color:var(--accent)}.demo-segmentado{display:inline-flex;gap:2px;padding:3px;border-radius:var(--r-pilula);background:var(--painel)}.demo-segmentado button{min-height:30px;padding:4px 12px;border:0;border-radius:var(--r-pilula);background:transparent;color:var(--texto-2);font:600 12.5px/1 var(--sans);cursor:pointer}.demo-segmentado button[aria-checked=true]{background:var(--bg);color:var(--texto-1);box-shadow:0 1px 2px #0000001f}.demo-corpo{display:grid;grid-template-columns:minmax(0,620px) minmax(220px,280px);justify-content:center;gap:48px;padding:clamp(24px,4vw,48px) clamp(20px,4vw,56px) clamp(28px,4vw,52px)}.demo-lateral{display:none}.demo-texto{position:relative;isolation:isolate;font:400 21px/1.6 var(--serif-leitor);color:var(--texto-1)}.demo-titulo{margin:0 0 22px;font:600 26px/1.25 var(--serif-leitor);letter-spacing:0}.demo-paragrafo{margin:0 0 1.05rem;text-align:justify;hyphens:auto;-webkit-hyphens:auto;transition:opacity .2s ease}.demo-elipse{color:var(--texto-3)}.demo-fonte{margin-top:8px;font:500 12.5px/1.4 var(--sans);color:var(--texto-3)}.camada-de-marcas{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:-1;mix-blend-mode:var(--mistura-marca, multiply)}[data-animacao=desenhando] .traco-faixa{animation:desenhar-faixa .8s ease-out both}[data-animacao=desenhando] .traco-linha{animation:desenhar-linha .8s ease-out both}@keyframes desenhar-faixa{0%{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}@keyframes desenhar-linha{0%{stroke-dasharray:1;stroke-dashoffset:1}to{stroke-dasharray:1;stroke-dashoffset:0}}.demo-margem{position:relative;font:400 14px/1.45 var(--sans);color:var(--texto-2)}.nota{position:absolute;inset-inline:0;top:0;max-width:38ch;margin:0}.nota-cabeca{margin:0;display:flex;align-items:center}.nota-numero{display:inline-grid;place-items:center;min-width:24px;height:24px;margin-inline-end:.5rem;padding:0 5px;border:1.5px solid var(--borda);border-radius:999px;background:transparent;font:700 12px/1 var(--sans);font-variant-numeric:tabular-nums;cursor:pointer}.nota-numero.periferica{border-style:dashed}@media(min-width:900px){.demo-margem .nota:not(.ativa) :is(.nota-rotulo,.nota-texto){display:none}}.nota:not(.ativa) .nota-rotulo{text-decoration:none}.nota-rotulo{color:var(--texto-1);font-weight:600;text-decoration-line:underline;text-decoration-thickness:2px;text-underline-offset:.18em}.nota-texto{margin:.2rem 0 0 calc(24px + .5rem);line-height:1.45}.nota-conversa{display:grid;gap:6px;margin:10px 0 0 calc(24px + .5rem);padding-top:10px;border-top:1px solid var(--borda)}.nota-pergunta{color:var(--texto-1)}.nota-quem{display:block;font:700 11px/1.4 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--texto-3)}.demo .cor-0{--cor-relacao: #d4524a}.demo .cor-1{--cor-relacao: #e08a26}.demo .cor-2{--cor-relacao: #2f9e8f}.demo .cor-3{--cor-relacao: #7c63cc}.demo .cor-4{--cor-relacao: #3a82c4}.braquetes-desenho{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}.relacao-braquete{color:var(--cor-relacao);opacity:.28;transition:opacity .18s ease}.braquetes-desenho[data-acesa] .relacao-braquete:not(.acesa){opacity:.08}.relacao-braquete.acesa{opacity:1}.braquete{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.relacao-braquete.acesa .braquete{stroke-width:2.2}.alvo-braquete{position:absolute;z-index:2;width:22px;height:22px;padding:0;border:0;border-radius:50%;background:transparent;color:var(--cor-relacao);opacity:.35;cursor:pointer;transition:opacity .18s ease}.alvo-braquete:after{content:"";position:absolute;inset:5px;border:2px solid currentColor;border-radius:50%;background:var(--fundo);transition:opacity .12s ease}.alvo-braquete.acesa:after{opacity:0}.demo-corpo[data-relacao-acesa] .alvo-braquete:not(.acesa){opacity:.1}.alvo-braquete.acesa,.alvo-braquete:focus-visible{opacity:1}.alvo-braquete:hover{opacity:.75}.popover-braquete{--relation-color: var(--cor-relacao);position:absolute;z-index:3;box-sizing:border-box;min-width:160px;min-height:76px;margin:0;padding:14px 20px 18px;pointer-events:none;transform:translateY(-50%);background:var(--fundo);border:.5px solid var(--relation-color);border-radius:5px;animation:abrir-do-braquete .18s cubic-bezier(.22,1,.36,1) both}@keyframes abrir-do-braquete{0%{opacity:0;clip-path:inset(40% 25% 40% 75% round 5px)}to{opacity:1;clip-path:inset(0 0 0 0 round 5px)}}.popover-braquete legend{padding:0 5px;margin-left:-3px;background:var(--fundo);color:var(--relation-color);font:500 11px/13px var(--sans);letter-spacing:.08em;text-transform:uppercase}.popover-braquete p{margin:6px 0 0;font:400 15px/23px var(--sans);color:color-mix(in srgb,var(--texto-1) 88%,var(--bg))}.popover-braquete.estatico{position:static;transform:none;width:100%}.demo-paragrafo[data-veu=cheio]{opacity:.14}.demo-paragrafo[data-veu=leve]>span:not([data-citada]){opacity:.45;transition:opacity .2s ease}.demo-corpo[data-relacao-acesa] .demo-margem{opacity:.3;transition:opacity .2s ease}.demo-relacao-estreita{display:none;padding:0 20px 24px;min-height:120px}.demo-relacao-dica{font:400 13px/1.45 var(--sans);color:var(--texto-3)}.demo-legenda{padding:14px 24px 18px;border-top:1px solid var(--borda);font:400 13px/1.45 var(--sans);color:var(--texto-3)}@media(min-width:1180px){.demo-corpo{grid-template-columns:300px minmax(0,600px) minmax(200px,250px);gap:0 44px;padding-inline:24px 40px}.demo-lateral{display:block}}@media(max-width:1179.98px){.demo-texto{margin-left:76px}.demo-relacao-estreita{display:block;padding-inline:clamp(20px,4vw,56px)}.demo-texto .popover-braquete:not(.estatico){display:none}}@media(max-width:899px){.demo-corpo{grid-template-columns:minmax(0,1fr);gap:24px}.demo-margem{min-height:0!important;display:grid;gap:14px;padding-top:18px;border-top:1px solid var(--borda)}.nota{position:static;max-width:none}}@media(max-width:760px){.demo-texto{margin-left:30px;font-size:18px;line-height:1.6}.demo-titulo{font-size:22px}.demo-paragrafo{text-align:left}.demo-barra{padding:12px 16px}.demo-documento{display:none}.demo-controles{width:100%;justify-content:space-between;gap:12px}.demo-legenda{padding:12px 16px 16px}.demo-relacao-estreita{padding-inline:16px;min-height:140px}}@keyframes surgir{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.demo path,.popover-braquete{animation:none!important}.demo-paragrafo,.relacao-braquete,.alvo-braquete{transition:none}}.demo-questoes .demo-barra{justify-content:space-between}.questoes-dica{color:var(--texto-3)}.questoes-corpo{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,400px);gap:0;border-top:1px solid var(--borda)}.questoes-pagina-e-margem{display:grid;grid-template-columns:minmax(0,540px) 210px;justify-content:center;gap:28px;padding:clamp(24px,3vw,40px) clamp(16px,3vw,36px);background:var(--bg-2)}.questoes-folha{position:relative;isolation:isolate;padding:36px 40px 44px;border-radius:2px;background:#fff;color:#111;box-shadow:0 1px 3px #0000001f,0 8px 24px #0000000f;font:400 17px/1.55 var(--serif)}.questoes-cabeca{display:flex;gap:14px;margin-bottom:18px;font:600 13px/1 var(--serif);color:#555}.questoes-secao+.questoes-secao{margin-top:22px}.questoes-secao h4{margin:0 0 10px;font:600 17px/1.3 var(--serif)}.questoes-secao ol{list-style:none;margin:0;padding:0;display:grid;gap:14px}.questoes-secao li{position:relative;display:grid;grid-template-columns:22px minmax(0,1fr);gap:4px}.questoes-numero{font-variant-numeric:tabular-nums}.questoes-caixas{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:1}.caixa-do-exercicio{opacity:.42;transition:opacity .18s ease}.caixa-do-exercicio[data-aceso]{opacity:.95}.formula math{font-family:"Latin Modern Math","STIX Two Math","Cambria Math",math;font-size:1.04em}.formula.destacada{display:block;max-width:100%;overflow-x:auto}.formula.destacada{text-align:center}.formula.destacada math{display:inline-block}.questoes-na-pagina{display:none;position:absolute;right:-10px;top:-14px;z-index:2;width:24px;height:24px;padding:0;border:1.5px solid #456dff;border-radius:999px;background:#fff;color:#2f4fd6;font:700 13px/1 var(--sans);cursor:pointer}.questoes-margem{position:relative;padding-top:36px;font:14px/1.45 var(--sans)}.nota-do-exercicio{position:absolute;left:0;width:100%;z-index:2}.nota-do-exercicio:hover{z-index:4}.abrir-exercicio{display:flex;align-items:center;gap:8px;padding:0;border:0;background:none;cursor:pointer;text-align:left;font:inherit;color:var(--texto-1)}.numero-do-exercicio{display:inline-grid;place-items:center;min-width:24px;height:24px;border:1.5px solid #456dff;border-radius:999px;color:var(--accent-texto);font:700 13px/1 var(--sans)}.demo-questoes .nota-rotulo{font:600 11.5px/1.2 var(--sans);letter-spacing:.06em;text-transform:uppercase;text-decoration:none}.demo-questoes .abrir-exercicio:is(:hover,:focus-visible) .nota-rotulo,.demo-questoes .nota-do-exercicio[data-aberta] .nota-rotulo{text-decoration-line:underline;text-decoration-thickness:2px;text-underline-offset:.18em}.previa-do-exercicio{display:none;position:absolute;top:30px;left:32px;right:-8px;gap:4px;padding:10px 14px 12px;border:1px solid color-mix(in srgb,#456dff 55%,transparent);border-radius:8px;background:var(--bg)}.nota-do-exercicio:is(:hover,:focus-within) .previa-do-exercicio{display:grid}.enunciado-da-previa{font:15px/1.45 var(--serif);color:var(--texto-1)}.linha-da-previa{font-size:13px;color:var(--texto-2)}.eyebrow{display:block;margin:0 0 4px;font:700 11.5px/1.4 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--texto-3)}.linha-da-previa .eyebrow{display:inline;margin-right:6px}.questoes-resolucao{display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;min-width:0;max-height:640px;background:var(--folha);box-shadow:inset 1px 0 0 var(--borda)}.questoes-resolucao>.eyebrow{padding:16px 20px 0}.questoes-abas{display:flex;gap:4px;padding:6px 16px 10px;flex-wrap:wrap}.questoes-abas button{padding:6px 12px;border:0;border-radius:var(--r-pilula);background:transparent;font:600 13px/1 var(--sans);color:var(--texto-2);cursor:pointer}.questoes-abas button[aria-selected=true]{background:var(--painel);color:var(--texto-1)}.questoes-rolagem{overflow-y:auto;display:grid;gap:12px;align-content:start;padding:14px 20px 20px;border-top:1px solid var(--borda)}.questoes-rolagem h3{font:600 16px/1.45 var(--serif);letter-spacing:0}.estrategia,.verificacao-do-item{font:16px/1.5 var(--serif)}.verificacao-do-item{color:var(--texto-2)}.passos-da-resolucao{margin:0;padding-left:24px;display:grid;gap:10px}.passos-da-resolucao>li::marker{color:#5467ff;font-family:var(--sans);font-weight:700}.passo-da-resolucao p{font:16px/1.5 var(--serif)}.passo-da-resolucao .calculo{margin-top:4px;padding:6px 10px;border-radius:6px;background:var(--painel);text-align:center;font:17px/1.5 var(--serif)}.passo-final{padding:8px 12px 10px;border-radius:8px;border:1.5px solid var(--texto-1);font:16px/1.5 var(--serif)}.passo-final:before{content:"Resposta";display:block;margin-bottom:2px;font:600 11px/1.4 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--texto-3)}.surgiu{animation:surgir .32s cubic-bezier(.2,.7,.2,1) both}.questoes-avanco{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;padding:12px 20px 16px;border-top:1px solid var(--borda)}.questoes-avanco .link-discreto{padding:0;border:0;background:none;cursor:pointer;font-size:14px}@media(max-width:1100px){.questoes-corpo{grid-template-columns:minmax(0,1fr)}.questoes-resolucao{max-height:none;box-shadow:inset 0 1px 0 var(--borda)}}@media(max-width:760px){.questoes-pagina-e-margem{grid-template-columns:minmax(0,1fr);padding:16px 12px}.questoes-margem{display:none}.questoes-na-pagina{display:block}.questoes-folha{padding:24px 18px 28px;font-size:16px}.questoes-dica{display:none}}@media(prefers-reduced-motion:reduce){.surgiu{animation:none}}.ilustracao{--serif-leitor: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, "Times New Roman", serif;position:relative;overflow:hidden;border:2px solid var(--borda-3d);border-radius:var(--r-24);background:var(--folha);box-shadow:0 var(--base-3d) 0 var(--borda-3d),var(--sombra-folha);font:400 14px/1.45 var(--sans);color:var(--texto-2)}.ilus-barra{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;font:500 13px/1.3 var(--sans)}.ilus-chip{padding:4px 10px;border-radius:var(--r-pilula);background:var(--painel);font:600 12px/1.2 var(--sans);color:var(--texto-2);white-space:nowrap}.texto-marcado{position:relative;isolation:isolate;color:var(--texto-1)}.texto-marcado p+p{margin-top:.8em}.ilus-serifa{font:400 18px/1.6 var(--serif-leitor)}.ilus-pequena{font-size:16px}.texto-marcado .camada-de-marcas{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:-1;mix-blend-mode:var(--mistura-marca, multiply)}.karaoke-camada{position:absolute;inset:0;z-index:-2;pointer-events:none}.karaoke-faixa{position:absolute;border-radius:6px;background:color-mix(in srgb,var(--accent) 13%,transparent)}.karaoke-palavra{position:absolute;left:0;top:0;border-radius:5px;background:color-mix(in srgb,var(--accent) 30%,transparent);transition:transform .14s cubic-bezier(.3,.7,.4,1),width .14s cubic-bezier(.3,.7,.4,1)}.texto-marcado [data-atual]{color:var(--accent-texto)}@media(prefers-color-scheme:dark){.karaoke-faixa{background:color-mix(in srgb,var(--accent) 22%,transparent)}.karaoke-palavra{background:color-mix(in srgb,var(--accent) 52%,transparent)}.texto-marcado [data-atual]{color:#fff}}@media(prefers-reduced-motion:reduce){.karaoke-palavra{transition:none}}.ilus-video-corpo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,42%);gap:24px;padding:8px 24px 20px}.ilus-capitulo{margin-bottom:10px;font:700 12px/1.3 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--texto-3)}.ilus-tela{position:relative;overflow:hidden;border-radius:10px;aspect-ratio:16 / 9;background:#111}.ilus-tela svg{width:100%;height:100%}.ilus-tela-trilha{position:absolute;left:8px;right:8px;bottom:8px;height:3px;border-radius:3px;background:#ffffff40}.ilus-tela-trilha span{display:block;height:100%;border-radius:3px;background:#fff}.ilus-tela-nota{margin-top:8px;font-size:12.5px;color:var(--texto-3)}.ilus-player{display:flex;align-items:center;gap:12px;margin:0 16px 16px;padding:8px 14px;border:1px solid var(--borda);border-radius:var(--r-pilula);background:var(--bg);font:600 12.5px/1 var(--sans)}.ilus-play{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--texto-1);color:var(--bg);font-size:11px;flex-shrink:0}.ilus-tempo{font-variant-numeric:tabular-nums;color:var(--texto-2)}.ilus-trilha{flex:1;height:4px;border-radius:4px;background:var(--painel)}.ilus-trilha span{display:block;height:100%;border-radius:4px;background:var(--accent)}@media(max-width:640px){.ilus-video-corpo{grid-template-columns:minmax(0,1fr);padding-inline:16px}.ilus-video-tela{order:-1}.ilus-player .ilus-chip{display:none}}.ilus-quadro{background:#161616;color:#ddd;border-color:#2a2a2a;box-shadow:0 var(--base-3d) 0 #2a2a2a,var(--sombra-folha)}.ilus-barra-escura{color:#ccc}.ilus-titulo{font-weight:600;color:#fff}.ilus-abas{display:inline-flex;gap:10px;color:#999}.ilus-abas b{color:#fff;font-weight:600}.ilus-palco{position:relative;padding:8px 18px 96px}.ilus-pintura,.ilus-regioes{display:block;width:100%;height:auto}.ilus-regioes{position:absolute;left:18px;top:8px;width:calc(100% - 36px)}.ilus-regiao>*{fill:transparent;vector-effect:non-scaling-stroke}.ilus-regiao>:nth-child(1){stroke:#000;stroke-opacity:.35;stroke-width:3}.ilus-regiao>:nth-child(2){stroke:#fff;stroke-opacity:.8;stroke-width:1.25}.ilus-regiao{opacity:.55}.ilus-regiao.acesa{opacity:1}.ilus-regiao.acesa>:nth-child(1){stroke-opacity:.5;stroke-width:5}.ilus-regiao.acesa>:nth-child(2){stroke:#456dff;stroke-opacity:1;stroke-width:2.25;fill:color-mix(in srgb,#456dff 10%,transparent)}.ilus-percorrer{position:absolute;left:28px;bottom:58px;max-width:min(340px,calc(100% - 56px));padding:12px 14px;border-radius:12px;background:#1f1f1fee;border:1px solid #ffffff22;color:#eee;font-size:13.5px}.ilus-percorrer-cabeca{margin-bottom:4px;font:700 11.5px/1.3 var(--sans);letter-spacing:.05em;text-transform:uppercase;color:#fff}.ilus-percorrer-cabeca span{font-weight:500;letter-spacing:0;text-transform:none;color:#aaa}.ilus-pilula{position:absolute;left:50%;bottom:14px;transform:translate(-50%);display:flex;align-items:center;gap:12px;max-width:calc(100% - 36px);padding:7px 16px 7px 7px;border-radius:var(--r-pilula);background:#262626;border:1px solid #ffffff1f;font:600 12.5px/1 var(--sans);color:#ddd;white-space:nowrap;overflow:hidden}.ilus-pilula .ilus-play{background:#fff;color:#111}.ilus-pilula-legenda{overflow:hidden;text-overflow:ellipsis;font-weight:400;color:#bbb}.ilus-pilula-legenda b{font-weight:400;color:#fff;background:color-mix(in srgb,#456dff 52%,transparent);border-radius:4px;padding:0 2px}@media(max-width:640px){.ilus-abas{display:none}.ilus-palco{padding:8px 10px 150px}.ilus-regioes{left:10px;width:calc(100% - 20px)}.ilus-percorrer{left:12px;right:12px;max-width:none;bottom:60px}}.ilus-obsidian{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1.15fr);gap:16px;align-items:center;padding:24px}.ilus-rotulo-lado{margin-bottom:12px;font:700 11.5px/1.3 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--texto-3)}.ilus-obs-nota{margin-top:14px}.ilus-obs-nota .nota-cabeca{display:flex;align-items:center;margin:0}.ilus-obs-nota .nota-numero{display:inline-grid;place-items:center;min-width:24px;height:24px;margin-inline-end:.5rem;padding:0 5px;border:1.5px solid;border-radius:999px;font:700 12px/1 var(--sans)}.ilus-obs-nota .nota-rotulo{color:var(--texto-1);font-weight:600;text-decoration:none}.ilus-obs-nota .nota-texto{margin:.2rem 0 0 calc(24px + .5rem)}.ilus-seta{font:400 28px/1 var(--sans);color:var(--texto-3)}.ilus-obs-nota-md{display:grid;gap:10px;padding:16px;border-radius:12px;background:var(--bg-2);border:1px solid var(--borda);font-size:13.5px}.ilus-obs-titulo{font:700 18px/1.3 var(--sans);color:var(--texto-1)}.ilus-obs-meta{font:500 12px/1.4 ui-monospace,SF Mono,Menlo,Consolas,monospace;color:var(--texto-3)}.ilus-callout{padding:10px 12px;border-radius:8px;border:1px solid}.ilus-callout[data-tipo=tese]{border-color:color-mix(in srgb,#ffd926 60%,transparent);background:color-mix(in srgb,#ffd926 14%,transparent)}.ilus-callout[data-tipo=pergunta]{border-color:color-mix(in srgb,#456dff 45%,transparent);background:color-mix(in srgb,#456dff 9%,transparent)}.ilus-callout-cabeca{margin-bottom:4px;font-weight:700;color:var(--texto-1)}.ilus-callout u{color:var(--accent-texto)}.ilus-callout p:not(.ilus-callout-cabeca){color:var(--texto-2)}.ilus-tags{margin-top:6px;font:600 12px/1.3 var(--sans);color:var(--accent-texto)!important}.ilus-obs-conexao{color:var(--texto-2)}.ilus-obs-conexao u{color:var(--accent-texto)}@media(max-width:760px){.ilus-obsidian{grid-template-columns:minmax(0,1fr);padding:16px}.ilus-seta{transform:rotate(90deg);justify-self:center}}