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/* Menu superior (desktop): submenus ao passar o mouse (ou por foco/teclado); o cabeçalho se ajusta à largura da tela */
.nav-group:focus-within .nav-sub{display:block}
.nav-sub-box{min-width:230px}
.os-top{gap:20px!important}
.os-top .nav-caret{width:18px}
.header-cta{flex-shrink:0;white-space:nowrap}
@media (max-width:1439px){
  header{padding-left:48px!important;padding-right:48px!important}
  .os-top{gap:16px!important}
}
@media (max-width:1319px){.os-top{display:none!important}}

/* trilha de 5 etapas e vídeos de plataformas */
@media (min-width:901px) and (max-width:1100px){.os-path.p5{grid-template-columns:repeat(3,minmax(0,1fr))}.os-path.p5 .os-step:nth-child(3){border-right:0;margin-right:0}.os-path.p5 .os-step:nth-child(n+4){border-top:1px solid var(--border)}}
@media (min-width:1101px){.os-path.p5{grid-template-columns:repeat(5,minmax(0,1fr))}.os-path.p5 .os-step{padding-right:16px;margin-right:16px}.os-path.p5 .os-step h3{font-size:var(--fs-h3)}}
.os-pf .media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;background:#000}

/* revisão geral: sem rolagem horizontal (faixa de 100vw) e trilho dos seis desafios alinhado em telas estreitas */
body{overflow-x:hidden;overflow-x:clip}
.os-chain-track button{display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start}
@media (max-width:900px){.os-chain-track{border-top:0}.os-chain-track button{border-top:2px solid var(--text)}}

/* crítica de design: hero com ação, gaveta com ação, catálogo enxuto, tipografia e alvos de toque */
.hero-ctas{margin-top:10px}
.os-dc{padding:14px 24px 4px}
.os-dc .os-btn{width:100%;min-height:48px}
.os-filters .n{margin-left:6px;font-size:var(--fs-meta);font-weight:500;opacity:.7}
[data-colapsado] .os-pf[data-extra],[data-colapsado] .os-pf-cta{display:none}
html.__ed [data-colapsado] .os-pf[data-extra]{display:block}
html.__ed [data-colapsado] .os-pf-cta{display:flex}
.os-pf-more{display:none;margin-top:36px;text-align:center}
[data-colapsado] .os-pf-more{display:block}
html.__ed .os-pf-more{display:none}
.os-pf-cta{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:14px;padding:28px;background:var(--card);border:1px solid var(--border);border-radius:8px}
.os-pf-cta[hidden]{display:none}
.os-pf-cta h3{margin:0;font-family:Oswald,sans-serif;font-size:var(--fs-h3);font-weight:600;line-height:1.2}
.os-pf-cta p{margin:0;font-size:var(--fs-body);line-height:1.55;color:var(--muted)}
.os-eyebrow{font-size:var(--fs-lead);letter-spacing:3px}
@media (max-width:700px){.os-eyebrow{font-size:var(--fs-lead)}}
article.grid-split figure figcaption{font-size:var(--fs-small)}
.os-events span{font-size:var(--fs-small)}
.mz-t span{font-size:var(--fs-meta)}
.os-top .nav-caret{position:relative}
.os-top .nav-caret::after{content:"";position:absolute;inset:-6px -4px}
.os-opts label{align-items:center;min-height:44px}
.os-opts input{flex:none;width:20px;height:20px;margin:0;accent-color:var(--accent)}

/* escala tipográfica única (todos os tamanhos do site vêm destes degraus) */
:root{--fs-meta:13px;--fs-small:14px;--fs-body:16px;--fs-lead:18px;--fs-lead-lg:20px;--fs-h4:20px;--fs-h3:24px;--fs-h2s:32px;--fs-h2:44px;--fs-h1:56px;--fs-display:80px}
@media(max-width:1060px){:root{--fs-h2:32px;--fs-h2s:28px}}
@media(max-width:640px){:root{--fs-lead:16px;--fs-lead-lg:18px;--fs-h4:18px;--fs-h3:20px;--fs-h2s:24px;--fs-h2:28px;--fs-h1:34px;--fs-display:44px}}
h1{font-size:var(--fs-h1)}h2{font-size:var(--fs-h2)}h3{font-size:var(--fs-h3)}h4{font-size:var(--fs-h4)}
.os-dclose{font-size:var(--fs-small)}

/* seis desafios: abas com cara de botão, dica e "próximo desafio" */
.os-chain-hint{display:flex;align-items:center;gap:10px;margin:0 0 14px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:var(--fs-small);color:var(--accent-text)}
.os-chain-hint i{width:10px;height:10px;border-radius:50%;background:var(--accent2);flex:none}
@keyframes os-pulse{0%{box-shadow:0 0 0 0 rgba(214,41,201,.55)}100%{box-shadow:0 0 0 12px rgba(214,41,201,0)}}
@media (prefers-reduced-motion:no-preference){.os-chain-hint i{animation:os-pulse 1.8s ease-out infinite}[data-chain].used .os-chain-hint i{animation:none}}
.os-chain-track{border-top:0;margin-top:0;margin-bottom:18px;gap:12px}
.os-chain-track button{border:1px solid var(--border);border-top:3px solid var(--border);border-radius:10px;background:var(--card);padding:14px 40px 14px 16px;transition:border-color .15s,transform .15s,box-shadow .15s,background .15s,color .15s}
.os-chain-track button:before{display:none}
.os-chain-track button:after{content:"";position:absolute;right:16px;top:50%;width:8px;height:8px;border-right:2px solid var(--accent-text);border-bottom:2px solid var(--accent-text);transform:translateY(-70%) rotate(-45deg);transition:transform .15s}
.os-chain-track button:hover{border-color:var(--accent);color:var(--text);transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.1)}
.os-chain-track button:hover:after{transform:translate(3px,-70%) rotate(-45deg)}
.os-chain-track button[aria-selected=true]{background:var(--text);border-color:var(--text);border-top-color:var(--accent2);color:var(--bg);transform:none;box-shadow:none}
.os-chain-track button[aria-selected=true] small{color:var(--bg);opacity:.75}
.os-chain-track button[aria-selected=true]:after{border-color:var(--bg);transform:translateY(-30%) rotate(45deg)}
.os-chain-track button[aria-selected=true]:before{display:block;content:"";position:absolute;top:auto;left:22px;bottom:-10px;width:0;height:0;border:9px solid transparent;border-top-color:var(--text);border-bottom:0;border-radius:0;background:none}
.os-chain-foot{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:12px;border-top:1px solid var(--border);padding-top:12px;margin-top:4px}
.os-chain-foot span{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:var(--fs-meta);color:var(--muted)}
.os-chain-next{all:unset;cursor:pointer;box-sizing:border-box;display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 4px;font-family:Oswald,sans-serif;font-size:var(--fs-lead);font-weight:500;color:var(--text);border-bottom:2px solid var(--accent)}
.os-chain-next:hover{color:var(--accent-text)}
.os-chain-next:focus-visible{outline:2px solid var(--accent2);outline-offset:3px}