/* Apex Skills - folha principal da area publica. Nasceu do mockup de referencia em docs/mockup-home-referencia.html */
:root{
  --base:#0B1220; --sup:#141E33; --sup2:#1C2942;
  --ciano:#22D3EE; --violeta:#7C5CFF; --acao:#FFB020;
  /* acento para texto: o ciano puro nao tem contraste sobre fundo claro */
  --ciano-txt:#22D3EE;
  --ok:#34D399; --erro:#F87171;
  /* versao de texto dos estados: no tema claro o verde/ambar puro nao tem contraste */
  --ok-txt:#34D399; --erro-txt:#F87171; --acao-txt:#FFB020;
  --txt:#E8EDF6; --txt2:#9FB0CC;
  --vidro: color-mix(in oklab, #141E33 68%, transparent);
  --borda: rgba(255,255,255,.08);
  --sombra: 0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -20px rgba(11,18,32,.9);
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, monospace;
  --curva: cubic-bezier(.16,1,.3,1);
  --raio:16px;
}
*,*::before,*::after{box-sizing:border-box}
html,body,h1,h2,h3,p,ul,li,figure{margin:0;padding:0}
ul{list-style:none}
img,svg{display:block;max-width:100%}
body{
  background:var(--base); color:var(--txt);
  font:400 17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}

/* ---------- atmosfera: manchas de luz + ruido ---------- */
.atmosfera{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.luz{position:absolute;border-radius:50%;filter:blur(140px)}
.luz.a{width:56vw;height:56vw;top:-18vw;left:-12vw;background:var(--ciano);opacity:.18}
.luz.b{width:48vw;height:48vw;top:34vh;right:-16vw;background:var(--violeta);opacity:.14}
.luz.c{width:40vw;height:40vw;bottom:-16vw;left:24vw;background:var(--ciano);opacity:.08}
.ruido{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.03}

/* ---------- base de layout ---------- */
.caixa{width:min(1200px,92vw);margin-inline:auto}
.vidro{
  background:var(--vidro);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--borda);
  border-top-color:rgba(255,255,255,.14);
  box-shadow:var(--sombra);
  border-radius:var(--raio);
}

/* ---------- topo ---------- */
header{position:sticky;top:0;z-index:50;padding:14px 0}
.barra{display:flex;align-items:center;gap:28px;padding:10px 12px 10px 18px}
.marca{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em}
.marca svg{width:26px;height:26px}
nav{display:flex;gap:22px;margin-left:auto;font-size:15px;color:var(--txt2)}
nav a{color:inherit;text-decoration:none;position:relative;padding-block:4px;transition:color .2s}
nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--ciano);transition:right .3s var(--curva)}
nav a:hover{color:var(--txt)} nav a:hover::after{right:0}
.btn{
  font:inherit;font-size:15px;font-weight:700;border:0;cursor:pointer;
  padding:12px 20px;border-radius:10px;text-decoration:none;display:inline-block;
  transition:transform .2s var(--curva), box-shadow .2s var(--curva);
}
.btn-fantasma{background:transparent;color:var(--txt);border:1px solid var(--borda)}
.btn-fantasma:hover{border-color:rgba(255,255,255,.25);transform:translateY(-2px)}
.btn-acao{
  background:var(--acao);color:#2A1B00;position:relative;overflow:hidden;
  box-shadow:0 10px 30px -12px rgba(255,176,32,.7);
}
.btn-acao::after{
  content:"";position:absolute;inset:0;transform:translateX(-120%);
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.55),transparent 80%);
}
.btn-acao:hover{transform:translateY(-2px);box-shadow:0 16px 40px -12px rgba(255,176,32,.8)}
.btn-acao:hover::after{animation:brilho .7s var(--curva)}
@keyframes brilho{to{transform:translateX(120%)}}
.tema{margin-left:6px;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--borda);color:var(--txt2);cursor:pointer}
.tema:hover{color:var(--ciano-txt)}

/* ---------- hero ---------- */
.hero{padding:clamp(48px,7vw,96px) 0 clamp(40px,5vw,72px)}
.hero-grade{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,56px);align-items:center}
.sobrancelha{
  font:600 12px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ciano-txt);
  display:inline-flex;align-items:center;gap:9px;margin-bottom:22px
}
.sobrancelha::before{content:"";width:26px;height:1px;background:var(--ciano)}
h1{
  font-size:clamp(42px,6.4vw,74px);font-weight:800;line-height:1.03;letter-spacing:-.035em;
  text-wrap:balance;
}
h1 em{font-style:normal;background:linear-gradient(96deg,var(--ciano),var(--violeta));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.sub{color:var(--txt2);font-size:clamp(17px,1.4vw,19px);margin-top:22px;max-width:52ch}
.acoes{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.aviso{margin-top:26px;font-size:13px;color:var(--txt2);display:flex;gap:9px;align-items:flex-start;max-width:46ch}
.aviso svg{width:15px;height:15px;flex:none;margin-top:4px;color:var(--txt2)}

/* ---------- assinatura visual: o certificado ---------- */
.cert{padding:26px;position:relative;isolation:isolate}
.cert::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;z-index:-1;
  background:linear-gradient(140deg,var(--ciano),var(--violeta) 55%,transparent 85%);
  opacity:.5;
}
.cert-topo{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.cert-emissor{font:600 11px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--txt2)}
.selo{
  display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;
  background:color-mix(in oklab,var(--ok) 16%,transparent);
  border:1px solid color-mix(in oklab,var(--ok) 40%,transparent);
  color:var(--ok-txt);font:700 12px/1 system-ui;
}
.selo svg{width:14px;height:14px}
.cert-nome{font-size:26px;font-weight:800;letter-spacing:-.02em;margin-top:22px}
.cert-curso{color:var(--txt2);margin-top:4px;font-size:15px}
.cert-linha{display:flex;gap:26px;margin-top:22px;flex-wrap:wrap}
.cert-dado span{display:block;font:600 10px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--txt2);margin-bottom:7px}
.cert-dado strong{font:700 16px/1 system-ui}
.cert-rodape{display:flex;align-items:center;gap:18px;margin-top:24px;padding-top:20px;border-top:1px dashed rgba(255,255,255,.12)}
.qr{width:78px;height:78px;flex:none;background:#fff;border-radius:10px;padding:6px;transition:transform .2s var(--curva),box-shadow .2s}
.validar{display:flex;align-items:center;gap:18px;text-decoration:none;color:inherit;
  border-radius:12px;padding:8px;margin:-8px;transition:background .2s}
.validar:hover{background:rgba(255,255,255,.04)}
.validar:hover .qr{transform:scale(1.04);box-shadow:0 0 0 3px color-mix(in oklab,var(--ciano) 35%,transparent)}
.validar:focus-visible{outline:2px solid var(--ciano);outline-offset:3px}
.cod span{display:block;font:600 10px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--txt2);margin-bottom:8px}
.cod strong{font:700 19px/1 var(--mono);letter-spacing:.1em;color:var(--ciano-txt)}
.cod small{display:flex;align-items:center;gap:6px;color:var(--txt2);font-size:12px;margin-top:9px}
.cod small u{text-decoration:none;border-bottom:1px solid rgba(255,255,255,.22);padding-bottom:1px;transition:border-color .2s,color .2s}
.validar:hover .cod small u{color:var(--ciano-txt);border-bottom-color:var(--ciano-txt)}
.cod small svg{width:13px;height:13px;flex:none;transition:transform .2s var(--curva)}
.validar:hover .cod small svg{transform:translate(2px,-2px)}
.cursor{display:inline-block;width:9px;height:19px;background:var(--ciano);vertical-align:-3px;animation:pisca 1s steps(2) infinite}
@keyframes pisca{50%{opacity:0}}

/* ---------- secao ---------- */
.secao{padding-block:clamp(48px,6vw,84px)}
.secao-topo{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px;flex-wrap:wrap}
/* Titulo de secao. O h1 do topo de catalogo, trilhas, assinatura e validacao
   usa este tamanho, e nao o do h1 da home: pagina indexavel precisa de h1,
   mas nem todo h1 e manchete de capa. */
h2,.secao-topo h1{font-size:clamp(28px,3.4vw,44px);font-weight:800;letter-spacing:-.025em;line-height:1.1}
.secao-topo p{color:var(--txt2);max-width:44ch;font-size:16px}

/* ---------- bento de verdade ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;grid-auto-rows:minmax(150px,auto)}
.celula{padding:24px;transition:transform .2s var(--curva),border-color .2s,box-shadow .2s;position:relative;overflow:hidden}
.celula:hover{transform:translateY(-6px) scale(1.01);border-color:rgba(255,255,255,.2);
  box-shadow:var(--sombra),0 0 0 1px color-mix(in oklab,var(--ciano) 22%,transparent)}
.c-grande{grid-column:span 6;grid-row:span 2}
.c-media{grid-column:span 3}
.c-larga{grid-column:span 6}
.c-alta{grid-column:span 3;grid-row:span 2}
.c-peq{grid-column:span 3}

.icone{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:color-mix(in oklab,var(--ciano) 14%,transparent);
  border:1px solid color-mix(in oklab,var(--ciano) 26%,transparent);color:var(--ciano-txt)}
.icone.v{background:color-mix(in oklab,var(--violeta) 14%,transparent);
  border-color:color-mix(in oklab,var(--violeta) 30%,transparent);color:var(--violeta)}
.icone svg{width:22px;height:22px}
.celula h3{font-size:20px;font-weight:700;letter-spacing:-.01em}
.celula p{color:var(--txt2);font-size:15px;margin-top:8px}

.c-grande h3{font-size:clamp(24px,2.4vw,32px);letter-spacing:-.02em}
.lista-cursos{margin-top:22px;display:grid;gap:2px}
.lista-cursos li{display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:13px 0;border-top:1px solid rgba(255,255,255,.07);font-size:15px}
.lista-cursos li:hover{color:var(--ciano-txt)}
.lista-cursos b{font-weight:600}
.lista-cursos span{font:600 13px/1 var(--mono);color:var(--txt2);flex:none}

.numero{font-size:clamp(44px,5vw,64px);font-weight:800;letter-spacing:-.04em;color:var(--ciano-txt);line-height:1}
.numero-rot{color:var(--txt2);font-size:14px;margin-top:10px}
.c-larga .interna{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:center;height:100%}

.depo{display:flex;flex-direction:column;height:100%}
.aspas{font-size:56px;line-height:.6;color:var(--violeta);opacity:.5;font-weight:800}
.depo p{font-size:17px;color:var(--txt);margin-top:14px}
.depo footer{margin-top:auto;padding-top:20px;display:flex;align-items:center;gap:12px}
.avatar{width:38px;height:38px;border-radius:50%;flex:none;
  background:linear-gradient(140deg,var(--ciano),var(--violeta));display:grid;place-items:center;
  font-weight:800;color:#0B1220;font-size:14px}
.depo footer div{font-size:14px}
.depo footer small{display:block;color:var(--txt2);font-size:13px}

.rodape-mock{padding:40px 0 70px;color:var(--txt2);font-size:13px;text-align:center}

/* ---------- animacao de entrada ---------- */
/* o conteudo so e escondido quando ha JS: sem ele, a pagina aparece inteira */
html.js .reveal{opacity:0;transform:translateY(24px)}
html.js .reveal.visivel{opacity:1;transform:none;transition:opacity .6s var(--curva),transform .6s var(--curva)}

/* ---------- responsivo ---------- */
@media (max-width:900px){
  .hero-grade{grid-template-columns:1fr}
  nav{display:none}
  .c-grande,.c-larga,.c-alta{grid-column:span 12}
  .c-media,.c-peq{grid-column:span 6}
  .c-grande,.c-alta{grid-row:auto}
}
@media (max-width:560px){
  /* header amassava: marca e botao quebravam em duas linhas cada */
  .barra{padding:8px 10px;gap:8px}
  .marca{white-space:nowrap;font-size:15px;gap:7px}
  .marca svg{width:22px;height:22px}
  .barra .btn-acao{padding:10px 12px;font-size:13px;white-space:nowrap}
  .tema{width:36px;height:36px;margin-left:0}
  .menu-botao{width:36px;height:36px}
  .c-media,.c-peq{grid-column:span 12}
  .cert{padding:20px}
  .cert-rodape{flex-direction:column;align-items:flex-start}
  .acoes .btn{flex:1 1 100%;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html.js .reveal{opacity:1;transform:none}
}

/* ============================================================
   COMPONENTES ACRESCENTADOS AO MOCKUP (formularios, listas,
   catalogo, carrinho, prova, certificado). Mesmos tokens.
   ============================================================ */

html[data-tema="claro"]{
  --base:#F4F7FC; --sup:#FFFFFF; --sup2:#EEF3FA;
  --ciano-txt:#0E6E80;
  --ok-txt:#0B7A52; --erro-txt:#B4232D; --acao-txt:#8A5300;
  --txt:#0B1220; --txt2:#4A5A75;
  --vidro: color-mix(in oklab, #FFFFFF 82%, transparent);
  --borda: rgba(11,18,32,.10);
  --sombra: 0 1px 0 rgba(255,255,255,.6) inset, 0 18px 44px -24px rgba(11,18,32,.35);
}
html[data-tema="claro"] .luz{opacity:.10!important}
html[data-tema="claro"] .btn-fantasma{color:var(--txt)}
html[data-tema="claro"] .ruido{opacity:.015}

/* --- links de texto ---
   Nao havia regra generica para <a>, entao todo link fora do menu, dos botoes
   e das migalhas caia no azul padrao do navegador (#0000EE): contraste 1.99
   sobre o tema escuro. Vale para o conteudo das aulas, avisos e rodape. */
a{color:var(--ciano-txt)}
a:hover{color:var(--txt)}
.prosa a,.msg a,.txt2 a{color:var(--ciano-txt);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.prosa a:hover,.msg a:hover{color:var(--txt);text-decoration-color:var(--ciano)}

/* --- avisos --- */
.avisos{display:grid;gap:10px;margin-bottom:22px}
.msg{padding:13px 16px;border-radius:12px;border:1px solid var(--borda);font-size:15px}
.msg.ok{background:color-mix(in oklab,var(--ok) 14%,transparent);border-color:color-mix(in oklab,var(--ok) 36%,transparent)}
.msg.erro{background:color-mix(in oklab,var(--erro) 14%,transparent);border-color:color-mix(in oklab,var(--erro) 38%,transparent)}
.msg.info{background:color-mix(in oklab,var(--ciano) 12%,transparent);border-color:color-mix(in oklab,var(--ciano) 32%,transparent)}

/* --- formularios --- */
.forma{display:grid;gap:16px;max-width:440px}
.forma.larga{max-width:100%}
.campo{display:grid;gap:7px}
.campo label{font:600 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--txt2)}
.campo input,.campo select,.campo textarea{
  font:inherit;font-size:16px;color:var(--txt);background:var(--sup2);
  border:1px solid var(--borda);border-radius:10px;padding:12px 14px;width:100%;
}
html[data-tema="claro"] .campo input,html[data-tema="claro"] .campo select,html[data-tema="claro"] .campo textarea{background:#fff}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:2px solid var(--ciano);outline-offset:1px;border-color:transparent}
.campo .dica{font-size:13px;color:var(--txt2)}
.linha-campos{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:560px){.linha-campos{grid-template-columns:1fr}}

/* --- catalogo --- */
.grade-cursos{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card-curso{padding:22px;display:flex;flex-direction:column;gap:10px;transition:transform .2s var(--curva),border-color .2s}
.card-curso:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.2)}
.card-curso .etiqueta{font:600 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ciano-txt)}
/* O titulo do cartao e h2 nas paginas de catalogo (onde o h1 e o titulo da
   pagina) e h3 quando aparece dentro de uma secao da home. Mesmo tamanho nos
   dois casos: quem manda no visual e o cartao, nao o nivel do titulo. */
.card-curso h3,.card-curso h2{font-size:19px;font-weight:700;line-height:1.25}
.card-curso p{color:var(--txt2);font-size:14px;flex:1}
.card-curso .rodape{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:6px}
.preco{font-weight:800;font-size:19px}
.preco small{display:block;font-weight:600;font-size:12px;color:var(--txt2)}
.filtros{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.filtros a{font-size:14px;color:var(--txt2);text-decoration:none;border:1px solid var(--borda);padding:8px 14px;border-radius:999px}
.filtros a.ativo,.filtros a:hover{color:var(--txt);border-color:color-mix(in oklab,var(--ciano) 45%,transparent)}

/* --- tabelas e listas --- */
/* Item de grid nasce com min-width:auto e por isso se recusa a encolher abaixo
   do conteudo: era o que fazia a tabela larga esticar a pagina inteira mesmo
   dentro de um container que rola. */
.pilha, .pilha > *, .painel, .conteudo, .cartoes > *, .grade-2 > *{min-width:0}

/* Tabela larga nao pode empurrar a pagina inteira: ela rola dentro do proprio
   quadro. Sem isso o admin ganhava rolagem horizontal no tablet e no celular. */
.rolar-x{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;max-width:100%}
.rolar-x .tabela{min-width:560px}
.tabela{width:100%;border-collapse:collapse;font-size:15px}
.tabela th{text-align:left;font:600 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--txt2);padding:12px 10px;border-bottom:1px solid var(--borda)}
.tabela td{padding:13px 10px;border-bottom:1px solid rgba(255,255,255,.06)}
.tabela tr:hover td{background:rgba(255,255,255,.03)}
.pilula{display:inline-block;padding:4px 10px;border-radius:999px;font:700 12px/1.5 system-ui;border:1px solid var(--borda)}
.pilula.ok{color:var(--ok-txt);border-color:color-mix(in oklab,var(--ok) 40%,transparent)}
.pilula.aviso{color:var(--acao-txt);border-color:color-mix(in oklab,var(--acao) 40%,transparent)}
.pilula.ruim{color:var(--erro-txt);border-color:color-mix(in oklab,var(--erro) 40%,transparent)}

/* --- barra de progresso --- */
.barra-prog{height:8px;border-radius:999px;background:var(--sup2);overflow:hidden}
.barra-prog i{display:block;height:100%;background:linear-gradient(90deg,var(--ciano),var(--violeta))}

/* --- pagina de conteudo (aula, texto legal) --- */
.prosa{max-width:72ch;font-size:17px}
.prosa h2{font-size:26px;margin:34px 0 12px}
.prosa h3{font-size:20px;margin:26px 0 10px}
.prosa p,.prosa ul,.prosa ol{margin-bottom:16px;color:var(--txt)}
.prosa ul,.prosa ol{padding-left:22px}
.prosa ul li{list-style:disc;margin-bottom:8px}
.prosa ol li{list-style:decimal;margin-bottom:8px}
.prosa code{font:600 15px/1.5 var(--mono);background:var(--sup2);padding:2px 6px;border-radius:6px}
/* Formula longa (=SOMASES(...), caminho do Windows) estourava a coluna e
   colocava rolagem lateral na pagina toda no celular. Agora quebra a linha. */
.prosa code{overflow-wrap:anywhere;word-break:normal}
.prosa pre code{overflow-wrap:normal}
.prosa pre{background:var(--sup2);padding:16px;border-radius:12px;overflow:auto;border:1px solid var(--borda);margin-bottom:16px}
.prosa pre code{background:none;padding:0}
/* Tabela escrita dentro do conteudo da aula: sem classe nossa, entao ela mesma
   precisa rolar em tela estreita em vez de esticar a pagina. */
.prosa table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin-bottom:16px;font-size:15px}
.prosa th{text-align:left;padding:10px;border-bottom:1px solid var(--borda);font-weight:700}
.prosa td{padding:10px;border-bottom:1px solid rgba(255,255,255,.06)}
html[data-tema="claro"] .prosa td{border-bottom-color:rgba(11,18,32,.08)}
.prosa table{width:100%;border-collapse:collapse;margin-bottom:18px;font-size:15px}
.prosa th,.prosa td{border:1px solid var(--borda);padding:9px 11px;text-align:left}
.caixa-atencao{border-left:3px solid var(--acao);background:color-mix(in oklab,var(--acao) 10%,transparent);padding:16px 18px;border-radius:0 12px 12px 0;margin:22px 0}
.caixa-atencao b{color:var(--acao-txt)}
.caixa-resumo{border-left:3px solid var(--ciano);background:color-mix(in oklab,var(--ciano) 10%,transparent);padding:16px 18px;border-radius:0 12px 12px 0;margin:22px 0}
.ilustra{margin:26px 0;padding:18px;border:1px solid var(--borda);border-radius:14px;background:var(--sup2)}

/* --- prova --- */
.questao{padding:22px;margin-bottom:14px}
.questao .num{font:600 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ciano-txt)}
.questao .enunciado{margin:10px 0 16px;font-size:17px}
.alternativa{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1px solid var(--borda);border-radius:10px;margin-bottom:9px;cursor:pointer}
.alternativa:hover{border-color:color-mix(in oklab,var(--ciano) 45%,transparent)}
.alternativa input{margin-top:5px}
.alternativa.certa{border-color:color-mix(in oklab,var(--ok) 55%,transparent);background:color-mix(in oklab,var(--ok) 10%,transparent)}
.alternativa.errada{border-color:color-mix(in oklab,var(--erro) 55%,transparent);background:color-mix(in oklab,var(--erro) 10%,transparent)}
.cronometro{position:sticky;top:76px;z-index:20;padding:12px 18px;display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}
.cronometro b{font:700 20px/1 var(--mono);color:var(--acao-txt)}

/* --- editor de codigo do exercicio --- */
.editor{display:grid;gap:12px;margin:22px 0}
.editor textarea{font:400 14px/1.6 var(--mono);min-height:190px;background:#0A0F1C;color:#E8EDF6;border:1px solid var(--borda);border-radius:12px;padding:14px;width:100%}
.editor .saida{font:400 14px/1.6 var(--mono);background:var(--sup2);border:1px solid var(--borda);border-radius:12px;padding:14px;white-space:pre-wrap;min-height:60px}

/* --- utilidades --- */
.migalha{font-size:14px;color:var(--txt2);margin-bottom:18px}
.migalha a{color:var(--txt2)}
.centro{text-align:center}
.pilha{display:grid;gap:22px}
.entre{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.painel{padding:24px}
.grade-2{display:grid;grid-template-columns:1.6fr .9fr;gap:22px;align-items:start}
@media(max-width:900px){.grade-2{grid-template-columns:1fr}}
.mono{font-family:var(--mono)}
.txt2{color:var(--txt2)}
.peq{font-size:13px}
.mt{margin-top:18px}
.menu-botao{display:none}
@media(max-width:900px){
  .menu-botao{display:grid;place-items:center;width:40px;height:40px;margin-left:auto;background:transparent;border:1px solid var(--borda);border-radius:10px;color:var(--txt2);cursor:pointer}
  .barra.aberta nav{display:grid;position:absolute;top:100%;left:0;right:0;margin-top:8px;padding:14px 18px;gap:14px;background:var(--sup);border:1px solid var(--borda);border-radius:14px}
  .barra{position:relative}
  header .btn-fantasma{display:none}
}

/* --- rodape --- */
.rodape-col a{color:var(--txt2);text-decoration:none}
.rodape-col a:hover{color:var(--txt);text-decoration:underline}

/* Alvo de toque: WCAG 2.5.8 pede 24px de altura, em qualquer largura.
   Vale para o link que e o unico conteudo do proprio bloco (rodape, migalha,
   celula de tabela, titulo de aula, apoio de formulario). Link no meio de uma
   frase e isento pela propria norma e fica de fora de proposito. */
:where(p,li,td,th,h1,h2,h3,h4,b,strong,div,span) > a:only-child,
.migalha a, .rodape-col a{
  display:inline-flex;align-items:center;min-height:24px;
}
@media (max-width:520px){
  nav a{min-height:24px;display:flex;align-items:center}
}

/* Tela muito estreita: o botao do topo nao cabe junto da marca, do menu e do
   tema. Quando o carrinho esta vazio ele e so um atalho repetido do menu,
   entao sai de cena. Com item no carrinho ele continua sempre visivel. */
@media (max-width:430px){
  .cta-topo[data-vazio="1"]{display:none}
  .barra{gap:6px}
}

/* foco visivel em tudo que recebe teclado (rodada de design, item 13) */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible,
textarea:focus-visible, summary:focus-visible, [tabindex]:focus-visible{
  outline:2px solid var(--ciano); outline-offset:2px; border-radius:6px;
}
.campo .dica{color:#B6C4DC}
html[data-tema="claro"] .campo .dica{color:#3C4A63}

/* Caixa de selecao e botao de opcao nao sao campo de texto: a regra de
   `width:100%` do .campo os esticava pela largura do painel (na tela de
   pagamentos, 642px de largura por 13px de altura). Tamanho proprio, cursor de
   clique e alvo de toque no rotulo, que e o que a pessoa acerta. */
.campo input[type="checkbox"],.campo input[type="radio"],
.alternativa input[type="checkbox"],.alternativa input[type="radio"]{
  width:18px;height:18px;min-width:18px;padding:0;accent-color:var(--ciano);cursor:pointer
}
.campo fieldset .alternativa{margin-bottom:8px}