/* Demos das aulas de CIN0138 (demos/*.html). Usa as variáveis, o cabeçalho, o rodapé e a
   notação (.m, .mx) de cin0138.css; aqui ficam a bancada, os controles, o roteiro e as notas. */

/* A última letra em itálico de uma fórmula não encosta no texto seguinte. */
.m i:last-child{padding-right:.08em}

/* Notação dentro de rótulos em caixa alta: a matemática não muda de caixa. */
/* A fonte matemática tem outra altura de linha: no menu, ela não pode empurrar o texto para baixo. */
.md-nav .m{line-height:1}
.md-label .m,.dm-card h2 .m,.dm-box h2 .m,.dm-rot-rotulo .m,.md-section h2 .m{text-transform:none;letter-spacing:0}
.dm-card h2 .m,.dm-box h2 .m{font-size:1.25em;font-weight:400;color:var(--ink)}
.md-label i,.md-label sup,.md-label sub,.dm-card h2 i,.dm-box h2 i,.dm-nota h3 i,.dm-nota h3 sup,.dm-nota h3 sub,.dm-rot-rotulo i,.dm-tile>span i,.dm-tile>span sup{text-transform:none}

/* Abertura */
.dm-intro{padding:44px 0 4px}
.dm-intro h1{font-weight:800;font-size:clamp(32px,4.4vw,52px);line-height:1.04;letter-spacing:-.04em;margin-top:12px;text-wrap:balance}
.dm-intro .md-section-lead{max-width:880px;margin-top:14px}
.dm-meta{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.dm-meta li{font-size:13.5px;font-weight:700;line-height:1.4;color:var(--ink-2);background:var(--gray-soft);border:1px solid var(--line-soft);border-radius:999px;padding:5px 12px}
.dm-meta a{font-weight:750}
.dm-meta .is-forte{background:var(--red-soft);border-color:#f3c9ce;color:#5c1019}
/* Mapa da página: o que há em cada parte e onde fica */
.dm-mapa{margin-top:22px;max-width:980px;border:1px solid var(--line);border-left:5px solid var(--red);border-radius:var(--radius);background:var(--surface);padding:14px 18px 16px}
.dm-mapa-rot{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--red-dark)}
.dm-mapa ol{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:10px}
.dm-mapa li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:2px 12px;align-items:baseline}
.dm-mapa-num{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;font-size:13px;font-weight:800;grid-row:span 2}
.dm-mapa a{font-size:16px;font-weight:800;color:var(--red-dark);text-decoration:none}
.dm-mapa a:hover{text-decoration:underline}
.dm-mapa li p{font-size:14.5px;line-height:1.55;color:var(--ink-2)}
/* Correção itálica: o título em itálico que termina em "?" (Aula 1) encostava no texto seguinte (monitoria, 29/10/2026) */
.dm-mapa li p em{padding-right:.15em}
.dm-mapa .m{font-size:1.06em}

/* Bancada: roteiro, palco (gráficos) e painel (controles) */
.dm-bancada{padding:22px 0 64px}
.dm-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;grid-template-areas:"palco roteiro" "palco painel";grid-template-rows:auto 1fr;gap:16px 22px;align-items:start}
.dm-layout.sem-roteiro{grid-template-areas:"palco painel";grid-template-rows:auto}
.dm-roteiro{grid-area:roteiro;min-width:0}
.dm-palco{grid-area:palco;display:grid;gap:16px;min-width:0;align-content:start}
.dm-palco.is-duplo{grid-template-columns:repeat(2,minmax(0,1fr))}
.dm-palco .is-largura-toda{grid-column:1/-1}
.dm-painel{grid-area:painel;display:grid;gap:14px;min-width:0;align-content:start}
/* Roteiro e painéis numa coluna só, ao lado dos quadros (UI.montarLado). Em telas largas, a coluna fica
   parada logo abaixo do cabeçalho enquanto a página rola e, se for mais alta que a janela, rola sozinha:
   quem desce até um painel do fim da coluna continua vendo os quadros. */
.dm-layout.com-lado{grid-template-areas:"palco lado";grid-template-rows:auto}
.dm-lado{grid-area:lado;display:grid;gap:16px;min-width:0;align-content:start}
.dm-lado>.dm-roteiro,.dm-lado>.dm-painel{grid-area:auto}
@media(min-width:981px){
 .dm-lado{position:sticky;top:calc(var(--dm-topo,72px) + 12px);max-height:calc(100vh - var(--dm-topo,72px) - 24px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-gutter:stable;padding:3px 6px 3px 3px;margin:-3px -6px -3px -3px}
 @supports(height:100dvh){.dm-lado{max-height:calc(100dvh - var(--dm-topo,72px) - 24px)}}
 .dm-lado.tem-mais{-webkit-mask-image:linear-gradient(to bottom,#000 calc(100% - 44px),#0003);mask-image:linear-gradient(to bottom,#000 calc(100% - 44px),#0003)}
}
.dm-card,.dm-box,.dm-campo,.dm-ex,.dm-marca,.dm-seg-btn{scroll-margin-top:calc(var(--dm-topo,72px) + 14px);scroll-margin-bottom:14px}
/* O que a missão atual cita fica destacado; o nome, no texto da missão, leva até ele. */
.dm-card.is-foco,.dm-box.is-foco{box-shadow:0 0 0 2px var(--red)}
.dm-campo.is-foco,.dm-marca.is-foco{border-radius:8px;box-shadow:0 0 0 2px #db1e2f73;background:#fff4f5}
.dm-ex.is-foco,.dm-seg-btn.is-foco{border-color:var(--red)}
.dm-alvo{cursor:pointer;color:var(--red-dark);text-decoration:underline dotted 1.5px;text-underline-offset:3px;border-radius:3px}
.dm-alvo:hover{text-decoration-style:solid}
.dm-alvo:focus-visible{outline:2px solid var(--red);outline-offset:2px}
/* Números que ligam a missão aos quadros: o mesmo número no nome, no texto, e no canto do quadro ou do controle. */
.dm-alvo[data-num]::before{content:attr(data-num);display:inline-grid;place-items:center;min-width:1.45em;height:1.45em;margin-right:.3em;border-radius:999px;background:var(--red);color:#fff;font-size:.7em;font-weight:800;font-style:normal;line-height:1;vertical-align:.15em}
[data-foco-num]{position:relative}
[data-foco-num]::before{content:attr(data-foco-num);position:absolute;z-index:3;top:-9px;left:-9px;display:grid;place-items:center;width:22px;height:22px;border-radius:999px;background:var(--red);color:#fff;font-size:12.5px;font-weight:800;line-height:1;box-shadow:0 0 0 2px #fff;pointer-events:none}
/* Com uma missão aberta, os quadros que ela não cita ficam esmaecidos; sob o mouse ou com o foco, voltam ao normal. */
.dm-layout.tem-foco>.dm-palco>.dm-card:not(.is-foco),.dm-layout.tem-foco>.dm-palco>.dm-box:not(.is-foco){opacity:.5;transition:opacity .25s}
.dm-layout.tem-foco>.dm-palco>.dm-card:not(.is-foco):hover,.dm-layout.tem-foco>.dm-palco>.dm-box:not(.is-foco):hover,.dm-layout.tem-foco>.dm-palco>.dm-card:focus-within,.dm-layout.tem-foco>.dm-palco>.dm-box:focus-within{opacity:1}
/* Faixa "Na bancada": o exemplo carregado, no alto dos quadros. */
.dm-agora{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:baseline;gap:3px 10px;margin:0;padding:8px 12px;border:1px solid var(--line);border-left:4px solid var(--red);border-radius:10px;background:#fff;font-size:14.5px;line-height:1.45;color:var(--ink-2)}
.dm-agora[hidden]{display:none}
.dm-agora-rot{font-size:11.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--red-dark)}
.dm-agora strong{color:var(--ink);font-weight:800}
.dm-agora .m{font-size:1.06em}
.dm-agora-ver{flex-basis:100%;color:var(--ink-2)}
.dm-agora-ver>.dm-agora-rot{margin-right:8px}
@media (min-width:981px){.dm-layout.com-lado>.dm-palco>.dm-agora{position:sticky;top:calc(var(--dm-topo,72px) + 8px);z-index:5;box-shadow:0 8px 16px -12px rgba(35,31,32,.45)}}
.dm-aviso-flut{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:80;width:max-content;max-width:min(92vw,520px);display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:12px;background:var(--ink);color:#fff;font-size:14px;line-height:1.4;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.dm-aviso-flut button{font:inherit;font-size:13.5px;font-weight:800;color:#fff;background:transparent;border:1.5px solid #ffffff8c;border-radius:999px;padding:4px 11px;cursor:pointer;white-space:nowrap}
/* Depois de cumprir uma missão: o que vem a seguir; no fim do roteiro, os caminhos da página. */
.dm-rot-seguinte{font-size:14px;line-height:1.5;color:var(--ink-2);border-top:1px dashed var(--line);padding-top:8px}
.dm-rot-seguinte[hidden]{display:none}
.dm-rot-seguinte .m{font-size:1.06em}
.dm-rot-caminhos-rot{margin-top:8px;font-weight:750;color:var(--ink)}
.dm-rot-caminhos{margin:4px 0 0;padding-left:1.2em;display:grid;gap:4px}
.dm-rot-caminhos a{color:var(--red-dark);font-weight:700}
.is-piscar{animation:dm-piscar 1.2s ease-out}
@keyframes dm-piscar{0%{box-shadow:0 0 0 7px #db1e2f59}100%{box-shadow:0 0 0 2px #db1e2f00}}
@media(prefers-reduced-motion:reduce){.is-piscar{animation:none}}
.dm-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 14px 12px;min-width:0;display:flex;flex-direction:column;gap:10px}
.dm-card-head{display:flex;justify-content:space-between;align-items:baseline;gap:4px 12px;flex-wrap:wrap}
.dm-card h2,.dm-box h2{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--red-dark)}
.dm-card-sub{font-size:13px;line-height:1.45;color:var(--muted)}
/* Descrição longa recolhida em duas linhas (UI.recolherDescricoes); o botão abre o resto. */
.dm-card-head .dm-card-sub{flex:1 1 100%}
.dm-card-sub.is-recolhida{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden}
.dm-sub-mais{font:inherit;font-size:12.5px;font-weight:750;color:var(--red-dark);background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.dm-sub-mais:hover{color:var(--red)}
.dm-canvas{display:block;width:100%;aspect-ratio:1;border-radius:8px;background:#fff;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
.dm-canvas.is-largo{aspect-ratio:16/10}
.dm-canvas.is-baixo{aspect-ratio:5/2}
.dm-canvas.is-medio{aspect-ratio:4/3}
.dm-canvas.is-estatico{touch-action:auto}
.dm-canvas:focus-visible{outline:3px solid var(--red);outline-offset:2px}
.dm-dica-tela{font-size:12.5px;line-height:1.45;color:var(--muted)}
.dm-leitura{font-size:15px;line-height:1.65;color:var(--ink-2);min-width:0;overflow-wrap:anywhere}
.dm-leitura .m{font-size:1.1em;white-space:normal}
.dm-leitura .mx,.dm-leitura .fr{white-space:nowrap}
.dm-leitura p+p{margin-top:4px}
.dm-leitura strong{color:var(--ink)}
.dm-linha-mx{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font-family:var(--math);font-size:18px;line-height:1.3;min-width:0;overflow-x:auto;padding:2px 0}
.dm-linha-mx .op{font-family:var(--math);color:var(--ink-2)}
.dm-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;display:grid;gap:12px;min-width:0;align-content:start}
.dm-box>*{min-width:0}
.dm-box>p,.dm-desc{font-size:13.5px;line-height:1.55;color:var(--muted)}
.dm-box>p strong{color:var(--ink)}

/* Painéis de números */
.dm-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,120px),1fr));gap:8px}
.dm-tile{border-radius:10px;padding:9px 12px;background:var(--gray-soft);display:grid;gap:1px;min-width:0}
.dm-tile>span{font-size:10.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.dm-tile>span .m{text-transform:none;letter-spacing:0}
.dm-tile strong{font-size:22px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.dm-tile small{font-size:12px;font-weight:650;color:var(--muted)}
.dm-tile.is-main{background:var(--ink);color:#fff}
.dm-tile.is-main>span,.dm-tile.is-main small{color:#d9d4d5}
.dm-tile.is-ok{background:#e5f2e8}
.dm-tile.is-ok strong{color:var(--true)}
.dm-tile.is-alerta{background:var(--red-soft)}
.dm-tile.is-alerta strong{color:var(--red-dark)}

/* Controles */
.dm-campo{display:grid;gap:5px;min-width:0}
.dm-campo-topo{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.dm-rotulo{font-size:13px;font-weight:750;color:var(--ink)}
.dm-rotulo .m{font-size:1.12em}
.dm-saida{font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;color:var(--red-dark)}
.dm-campo input[type=range],.dm-passos-barra{width:100%;accent-color:var(--red);margin:2px 0}
.dm-campo select{font:inherit;font-size:15px;padding:8px 10px;border:1.5px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);max-width:100%}
.dm-marca{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:650}
.dm-marca input{width:18px;height:18px;accent-color:var(--red);margin:0}
.dm-seg{display:flex;flex-wrap:wrap;gap:6px}
.dm-seg-btn{font:inherit;font-size:13.5px;font-weight:750;padding:6px 12px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;line-height:1.35}
.dm-seg-btn:hover{border-color:var(--ink-2)}
.dm-seg-btn[aria-pressed=true]{border-color:var(--ink);background:var(--ink);color:#fff}
.dm-seg-btn .m{font-size:1.08em}
.dm-botoes{display:flex;flex-wrap:wrap;gap:8px}
.dm-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font:inherit;font-size:14px;font-weight:750;line-height:1.3;padding:8px 14px;border-radius:999px;border:1.5px solid var(--red);background:#fff;color:var(--red-dark);cursor:pointer}
.dm-btn.primary{background:var(--red);color:#fff}
.dm-btn:hover:not(:disabled){background:var(--red-dark);border-color:var(--red-dark);color:#fff}
.dm-btn:disabled{opacity:.4;cursor:default}
.dm-btn svg{width:17px;height:17px;flex:none}
.dm-btn.is-mini{padding:2px 9px;font-size:15px;min-width:30px}
.dm-btn.is-icone{padding:7px;width:36px;height:36px;border-color:var(--line);color:var(--ink-2)}
.dm-btn.is-icone.is-forte{border-color:var(--red);color:var(--red-dark)}
.dm-btn .m{font-size:1.08em}
.dm-exemplos{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,148px),1fr));gap:8px}
.dm-ex{display:grid;grid-template-columns:minmax(0,1fr);gap:2px;align-content:start;text-align:left;font:inherit;padding:9px 11px;border-radius:10px;border:1.5px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;min-width:0}
.dm-ex:hover{border-color:var(--ink-2)}
.dm-ex strong{font-size:13.5px;font-weight:800;line-height:1.3}
.dm-ex span{font-size:12px;line-height:1.4;color:var(--muted)}
.dm-ex[aria-pressed=true]{border-color:var(--red);background:var(--red-soft)}
.dm-ex[aria-pressed=true] span{color:#5c1019}
.dm-exemplos.is-compacto{grid-template-columns:repeat(auto-fill,minmax(min(100%,112px),1fr))}
.dm-exemplos.is-compacto .dm-ex>span .m{white-space:normal}
/* O que acontece num clique, antes da lista; no exemplo carregado, o selo "Na bancada" liga o quadrinho à faixa. */
.dm-exemplos-intro{margin:0 0 10px;font-size:13.5px;line-height:1.5;color:var(--ink-2)}
.dm-exemplos-intro:empty{display:none}
.dm-ex[aria-pressed=true]::after{content:'Na bancada';margin-top:5px;font-size:10.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--red-dark)}
@media (hover:hover){.dm-ex:not([aria-pressed=true]):hover::after{content:'Carregar nos quadros';margin-top:5px;font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}}
.dm-legenda{list-style:none;margin:0;padding:8px 0 0;border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;line-height:1.45;color:var(--muted)}
.dm-legenda li{display:flex;align-items:center;gap:7px}
.dm-legenda .m{color:var(--ink)}
.dm-sw{display:inline-block;flex:none;width:20px;height:3px;border-radius:2px;background:var(--cor,#231f20)}
.dm-sw.is-tracejado{background:repeating-linear-gradient(90deg,var(--cor,#231f20) 0 5px,transparent 5px 8px)}
.dm-sw.is-ponto{width:11px;height:11px;border-radius:50%}
.dm-sw.is-area{width:16px;height:12px;border-radius:3px;opacity:.55}
.dm-sw.is-seta{height:3px;position:relative;margin-right:4px}
.dm-sw.is-seta::after{content:'';position:absolute;right:-5px;top:-4px;border-left:7px solid var(--cor,#231f20);border-top:5.5px solid transparent;border-bottom:5.5px solid transparent}

/* Estados e mensagens */
[data-tipo=ok]{color:var(--true)}
[data-tipo=aviso]{color:#8a4b00}
[data-tipo=erro]{color:var(--red-dark)}
.dm-msg{font-size:14.5px;font-weight:650;line-height:1.5;min-height:1.5em}

/* Matrizes das demos */
.dm-mx{font-size:18px;gap:.1em .7em;padding:.14em .55em}
.dm-mx .dm-c{position:relative;min-width:1.1em;padding:0 .06em;border-radius:4px;transition:background-color .25s ease,color .25s ease}
.dm-mx .is-linha{background:#fde5e8}
.dm-mx .is-coluna{background:#e6eef7}
.dm-mx .is-linha.is-coluna{background:#efe1ef}
.dm-mx .is-celula{box-shadow:0 0 0 2px var(--red)}
.dm-mx .is-pivo{color:var(--red-dark);font-weight:700}
.dm-mx .is-pivo::after{content:'';position:absolute;inset:-.06em -.18em;border:1.6px solid var(--red);border-radius:999px;pointer-events:none}
.dm-mx .is-alvo{background:#fff4d6;box-shadow:0 0 0 2px #e0a400}
.dm-mx .is-zero{color:#b3aeaf}
/* A barra de [A | b] atravessa as linhas sem falhas: sem cantos arredondados e cobrindo o espaço entre as linhas. */
.dm-mx .mx-bar{border-radius:0;margin:-.05em 0;padding-top:.05em;padding-bottom:.05em}
.dm-mx.is-pequena{font-size:15px}
.dm-mx.is-grande{font-size:21px}
.fr{display:inline-grid;vertical-align:middle;text-align:center;font-size:.78em;line-height:1.06;margin:0 .05em}
.fr-n{border-bottom:1.1px solid currentColor;padding:0 .12em}
.fr-d{padding:0 .12em}
.fr-s{white-space:nowrap}
.dm-eq{white-space:nowrap}
@media(prefers-reduced-motion:reduce){.dm-mx .dm-c{transition:none}}

/* Editor de matriz */
.dm-editor{display:grid;grid-template-columns:minmax(0,1fr);gap:8px;min-width:0}
.dm-editor-topo{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;font-size:13px;font-weight:700;color:var(--ink-2)}
.dm-tam{display:inline-flex;align-items:center;gap:5px}
.dm-tam-valor{font-family:var(--math);font-size:16px;font-weight:400;color:var(--ink)}
.dm-editor-grade{position:relative;display:grid;gap:5px;width:max-content;max-width:100%;padding:4px 10px;justify-self:start}
.dm-editor-grade::before,.dm-editor-grade::after{content:'';position:absolute;top:0;bottom:0;width:7px;border:1.6px solid var(--ink)}
.dm-editor-grade::before{left:0;border-right:0}
.dm-editor-grade::after{right:0;border-left:0}
.dm-cel{width:100%;min-width:0;font-family:var(--math);font-size:17px;text-align:center;padding:5px 2px;border:1.5px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);font-variant-numeric:tabular-nums}
.dm-cel:focus{border-color:var(--red);outline:none;box-shadow:0 0 0 3px #db1e2f33}
.dm-cel.is-barra{margin-left:8px;box-shadow:-9px 0 0 -7.5px var(--ink)}
.dm-cel.is-invalida{border-color:var(--red);background:var(--red-soft)}
.dm-cel.is-destaque{border-color:var(--red);background:#fff4f5}
.dm-cel:disabled{background:var(--gray-soft);color:var(--muted)}

/* Passo a passo */
/* Em quadros estreitos, a barra e o contador descem para a linha de baixo em vez de encolher. */
.dm-passos{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px}
.dm-passos-botoes{display:flex;gap:4px;flex:none}
.dm-passos .dm-passos-barra{flex:1 1 140px;min-width:0;width:auto}
.dm-passos-cont{font-size:13px;font-weight:750;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;flex:none}
.dm-explica{font-size:15px;line-height:1.6;color:var(--ink);background:var(--gray-soft);border-left:4px solid var(--red);border-radius:0 8px 8px 0;padding:10px 14px;min-height:3.4em}
.dm-explica .m{font-size:1.08em}

/* Roteiro guiado */
.dm-rot{background:var(--surface);border:1px solid var(--line);border-top:5px solid var(--red);border-radius:var(--radius);padding:14px 18px 16px;display:grid;gap:10px;min-width:0}
.dm-rot-topo{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}
.dm-rot-rotulo{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--red-dark)}
.dm-rot-cont{font-size:12.5px;font-weight:750;color:var(--muted);font-variant-numeric:tabular-nums}
.dm-rot-pontos{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.dm-rot-ponto{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--line);background:#fff;color:var(--muted);font:inherit;font-size:12.5px;font-weight:800;cursor:pointer;padding:0}
.dm-rot-ponto:hover{border-color:var(--ink-2);color:var(--ink)}
.dm-rot-ponto.is-feita{background:var(--true);border-color:var(--true);color:#fff}
.dm-rot-ponto.is-atual{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--red);color:var(--ink)}
.dm-rot-ponto.is-feita.is-atual{color:#fff}
.dm-rot-titulo{font-size:18px;font-weight:800;line-height:1.3;letter-spacing:-.015em}
.dm-rot-texto{font-size:15px;line-height:1.6;color:var(--ink-2)}
.dm-rot-texto p+p{margin-top:6px}
.dm-rot-texto .m{font-size:1.08em}
.dm-rot-opcoes{display:grid;gap:6px}
.dm-rot-opcoes:empty{display:none}
.dm-rot-opcao{font:inherit;font-size:14.5px;font-weight:650;line-height:1.45;text-align:left;padding:8px 12px;border-radius:9px;border:1.5px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.dm-rot-opcao:hover{border-color:var(--ink-2)}
.dm-rot-opcao.is-certa{border-color:var(--true);background:#e5f2e8}
.dm-rot-opcao.is-errada{border-color:var(--red);background:var(--red-soft)}
.dm-rot-opcao .m{font-size:1.08em}
.dm-rot-estado{font-size:14px;font-weight:700;line-height:1.5;color:var(--muted);min-height:1.5em}
.dm-rot-estado[data-tipo=ok]::before{content:'✓ ';font-weight:800}
.dm-rot-porque,.dm-rot-dica{font-size:14.5px;line-height:1.6;border-radius:9px;padding:10px 13px}
.dm-rot-porque{background:#e5f2e8;color:#163f22}
.dm-rot-dica{background:#fff4d6;color:#4d3800}
.dm-rot-porque .m,.dm-rot-dica .m{font-size:1.08em}
.dm-rot.is-feita{animation:dm-ok .6s ease-out}
@keyframes dm-ok{0%{box-shadow:0 0 0 0 #1f7a3a55}100%{box-shadow:0 0 0 14px #1f7a3a00}}
@media(prefers-reduced-motion:reduce){.dm-rot.is-feita{animation:none}}

/* Seção em dimensão n e notas */
.dm-rn .dm-layout{margin-top:6px}
.dm-notas-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,330px),1fr));gap:16px;align-items:start}
.dm-nota{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;display:grid;gap:10px;min-width:0}
.dm-nota h3{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--red-dark)}
.dm-nota p,.dm-nota li{font-size:15px;line-height:1.65;color:var(--ink-2)}
.dm-nota ul,.dm-nota ol{margin:0;padding-left:20px;display:grid;gap:6px}
.dm-nota .m{font-size:1.08em}
.dm-formula{font-family:var(--math);font-size:20px;line-height:1.5;text-align:center;padding:10px 12px;background:var(--gray-soft);border-radius:9px;overflow-x:auto;white-space:nowrap}
.dm-formula .mx{font-size:.95em}
.dm-pensar details{border-top:1px solid var(--line-soft);padding:8px 0}
.dm-pensar summary{cursor:pointer;font-weight:700;font-size:15px;line-height:1.5}
.dm-pensar details p{margin-top:6px;font-size:14.5px;color:var(--muted)}
/* Conceitos da aula em guias (abas), no padrão dos laboratórios da CIN0132: definição, explicação, exemplo e onde ver na bancada */
/* As guias quebram linha em vez de rolar: todas ficam à vista, mesmo em telas estreitas. */
.dm-guias-lista{display:flex;flex-wrap:wrap;gap:0 4px;border-bottom:1px solid var(--line);margin-bottom:18px}
.dm-guia-aba{font:inherit;display:inline-flex;align-items:baseline;gap:8px;white-space:nowrap;padding:10px 14px 9px;border:0;border-bottom:3px solid transparent;background:none;color:var(--ink-2);font-size:15px;font-weight:750;cursor:pointer}
.dm-guia-num{font-size:12px;font-weight:800;color:var(--muted);font-variant-numeric:tabular-nums}
.dm-guia-aba:hover{color:var(--ink)}
.dm-guia-aba[aria-selected=true]{color:var(--red-dark);border-bottom-color:var(--red)}
.dm-guia-aba[aria-selected=true] .dm-guia-num{color:var(--red)}
.dm-guia-aba:focus-visible{outline:3px solid var(--red);outline-offset:-3px}
.dm-guia{display:grid;gap:16px;min-width:0}
.dm-guias:not(.is-pronto) .dm-guia+.dm-guia{margin-top:28px}
.dm-guia:focus-visible{outline:3px solid var(--red);outline-offset:4px;border-radius:6px}
.dm-guia-intro{font-size:16px;line-height:1.65;color:var(--ink-2);max-width:900px}
.dm-conceitos{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,430px),1fr));gap:16px;align-items:start}
.dm-conceito{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;display:grid;grid-template-columns:minmax(0,1fr);gap:12px;min-width:0}
.dm-conceito h3{font-weight:800;font-size:18px;letter-spacing:-.015em;line-height:1.3}
.dm-conceito p,.dm-conceito li{font-size:15px;line-height:1.65;color:var(--ink-2)}
.dm-conceito ol,.dm-conceito ul{margin:0;padding-left:22px;display:grid;grid-template-columns:minmax(0,1fr);gap:6px}
.dm-conceito .m{font-size:1.08em}
.dm-def{border-left:4px solid var(--red);background:var(--red-soft);border-radius:0 10px 10px 0;padding:12px 16px;display:grid;grid-template-columns:minmax(0,1fr);gap:8px}
.dm-def p,.dm-def li{color:var(--ink)}
.dm-def-rot,.dm-exemplo-rot{font-size:11.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.dm-def .dm-def-rot{color:var(--red-dark)}
.dm-exemplo{border:1px solid var(--line-soft);background:#fbfbfa;border-radius:10px;padding:12px 16px;display:grid;grid-template-columns:minmax(0,1fr);gap:8px}
.dm-exemplo .dm-exemplo-rot{color:var(--muted)}
.dm-conceito .dm-na-bancada{font-size:14px;line-height:1.55;color:var(--muted)}
.dm-na-bancada strong{color:var(--red-dark)}
.dm-conta{font-family:var(--math);font-size:18px;line-height:1.6;text-align:center;padding:6px 8px;overflow-x:auto;white-space:nowrap}
/* Preparada por UI.prepararConta: quebra só antes de =, ≈, ⇔… e de + ou − fora de parênteses. */
.dm-conta.is-quebravel{white-space:normal}
.dm-conta .mx{font-size:.95em}
@media (max-width:560px){.dm-conta{font-size:16px;padding:4px 2px}}
/* Contas compostas pelo KaTeX (tools/contas_tex.py): um bloco por grupo de linhas, alinhado no sinal de igual.
   Antes do KaTeX carregar (ou sem ele), as linhas em HTML ficam dentro do bloco. */
.dm-contas{font-size:15px;margin:10px 0;padding:6px 2px;line-height:1.5;max-width:100%;overflow-x:auto;overflow-y:hidden}
.dm-contas.math-display .katex-display{margin:0;text-align:center}
.dm-contas.math-display .katex-display>.katex{text-align:center}
.dm-contas>.dm-conta{margin:0}
@media (max-width:560px){.dm-contas{font-size:13.5px;padding:6px 0}}
.dm-pensar-bloco{margin-top:22px}
.dm-nav-aulas{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line)}
.dm-nav-aulas a{display:grid;gap:2px;text-decoration:none;max-width:48%;min-width:0}
.dm-nav-aulas a span{font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.dm-nav-aulas a strong{font-size:16px;line-height:1.35;color:var(--red-dark)}
.dm-nav-aulas a:hover strong{text-decoration:underline}
.dm-nav-aulas .is-proxima{text-align:right;margin-left:auto}
.dm-tabela{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums}
.dm-tabela th,.dm-tabela td{padding:6px 6px;border-bottom:1px solid var(--line-soft);text-align:right}
.dm-tabela th:first-child,.dm-tabela td:first-child{text-align:left}
.dm-tabela thead th{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.dm-tabela-wrap{overflow-x:auto}

/* Índice das demos */
.dm-indice{padding:28px 0 72px}
.dm-modulo+.dm-modulo{margin-top:40px}
.dm-modulo-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.dm-modulo-head h2{font-weight:800;font-size:clamp(22px,2.6vw,28px);line-height:1.2;letter-spacing:-.025em}
.dm-aulas{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:14px}
.dm-aula{display:flex;flex-direction:column;gap:6px;background:var(--surface);border:1px solid var(--line);border-top:5px solid var(--red);border-radius:var(--radius);padding:16px 18px 14px;text-decoration:none;color:var(--ink);min-width:0}
.dm-aula:hover{border-color:var(--red);color:var(--ink)}
.dm-aula:hover .dm-aula-titulo{color:var(--red-dark)}
.dm-aula-topo{display:flex;justify-content:space-between;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.dm-aula-num{color:var(--red-dark)}
.dm-aula-data{color:var(--muted);font-variant-numeric:tabular-nums}
.dm-aula-titulo{font-size:17.5px;font-weight:800;line-height:1.3;letter-spacing:-.015em}
.dm-aula-desc{font-size:14px;line-height:1.55;color:var(--muted)}
.dm-aula-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.dm-aula-tags span{font-size:11.5px;font-weight:750;color:var(--ink-2);background:var(--gray-soft);border-radius:999px;padding:2px 9px}

/* Responsivo */
@media(max-width:1100px){
 .dm-layout{grid-template-columns:minmax(0,1fr) 330px}
}
@media(max-width:980px){
 .dm-layout,.dm-layout.sem-roteiro{grid-template-columns:minmax(0,1fr);grid-template-areas:"roteiro" "palco" "painel";grid-template-rows:auto}
 .dm-layout.sem-roteiro{grid-template-areas:"palco" "painel"}
 .dm-layout.com-lado{grid-template-areas:"roteiro" "palco" "painel"}
 .dm-layout.com-lado.sem-roteiro{grid-template-areas:"palco" "painel"}
 .dm-lado{display:contents}
 .dm-lado>.dm-roteiro{grid-area:roteiro}
 .dm-lado>.dm-painel{grid-area:painel}
 .dm-painel{grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr))}
}
@media(max-width:760px){
 .dm-palco.is-duplo{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:700px){
 .dm-intro{padding-top:32px}
 .dm-bancada{padding-bottom:44px}
 .dm-card{padding:10px 10px 10px}
 .dm-box{padding:14px}
 .dm-rot{padding:12px 14px 14px}
 .dm-nota{padding:16px}
 .dm-formula{font-size:18px}
 .dm-nav-aulas a{max-width:100%}
 .dm-nav-aulas .is-proxima{text-align:left;margin-left:0}
}
@media(max-width:420px){
 .dm-passos .dm-passos-barra{flex-basis:100%}
 .dm-mx{font-size:16px}
}
@media print{
 .dm-roteiro,.dm-painel,.dm-passos{display:none!important}
 .dm-layout,.dm-layout.com-lado{grid-template-columns:minmax(0,1fr);grid-template-areas:"palco"}
 .dm-lado,.dm-mapa,.dm-sub-mais{display:none!important}
 .dm-card-sub.is-recolhida{display:block;-webkit-line-clamp:none;line-clamp:none;overflow:visible}
 .dm-card,.dm-nota{break-inside:avoid}
}