:root{
    --accent:#FF7F27;
    --accent-soft:#FFF4EC;
    --ink:#111827;
    --ink-2:#374151;
    --muted:#6B7280;
    --line:#E5E7EB;
    --line-soft:#F3F4F6;
    --bg:#FFFFFF;
    --bg-2:#F9FAFB;
    --radius:12px;
    --header-h:57px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0; background:var(--bg); color:var(--ink);
    font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
    font-size:16px; line-height:1.7; -webkit-font-smoothing:antialiased;
  }

  /* barra de progresso de leitura */
  #progress{position:fixed; top:0; left:0; height:2px; width:0; background:var(--accent); z-index:60; transition:width .08s linear;}

  /* topo */
  header.site{
    position:sticky; top:0; z-index:50; background:rgba(255,255,255,.88);
    backdrop-filter:saturate(180%) blur(8px); border-bottom:1px solid var(--line-soft);
  }
  .bar{max-width:1180px; margin:0 auto; padding:0 24px; height:var(--header-h); display:flex; align-items:center; gap:14px;}
  .wordmark{font-weight:700; font-size:18px; letter-spacing:-.02em; color:var(--ink); text-decoration:none;}
  .pill{font-size:11px; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
        color:var(--accent); background:var(--accent-soft); border-radius:999px; padding:3px 9px;}
  .bar .spacer{flex:1;}
  .bar a.enter{font-size:13px; font-weight:600; color:var(--ink-2); text-decoration:none;
        border:1px solid var(--line); border-radius:8px; padding:7px 14px;}
  .bar a.enter:hover{background:var(--bg-2);}

  /* layout */
  .shell{max-width:1180px; margin:0 auto; padding:0 24px; display:grid; grid-template-columns:260px minmax(0,1fr); gap:56px; align-items:start;}

  /* índice lateral */
  nav.toc{position:sticky; top:calc(var(--header-h) + 28px); padding:34px 0 40px; max-height:calc(100vh - var(--header-h) - 40px); overflow-y:auto;}
  nav.toc .toc-title{font-size:11px; font-weight:700; letter-spacing:.09em; text-transform:uppercase; color:var(--muted); margin:0 0 14px 14px;}
  nav.toc ol{list-style:none; margin:0; padding:0; border-left:1px solid var(--line);}
  nav.toc li{margin:0;}
  nav.toc a{
    display:block; padding:7px 14px; margin-left:-1px;
    border-left:2px solid transparent;
    font-size:13.5px; line-height:1.45; color:var(--muted); text-decoration:none;
    transition:color .15s ease, border-color .15s ease;
  }
  nav.toc a:hover{color:var(--ink-2);}
  nav.toc a.active{color:var(--accent); font-weight:600; border-left-color:var(--accent);}
  nav.toc a .n{display:inline-block; width:18px; color:#9CA3AF; font-variant-numeric:tabular-nums; font-size:12px;}
  nav.toc a.active .n{color:var(--accent);}

  /* conteúdo */
  main{padding:34px 0 96px; min-width:0;}
  .crumb{font-size:13px; color:var(--muted); margin:0 0 10px;}
  .crumb a{color:var(--muted); text-decoration:none;}
  .crumb a:hover{color:var(--ink-2); text-decoration:underline;}
  h1{font-size:34px; line-height:1.2; letter-spacing:-.025em; font-weight:700; margin:0 0 12px;}
  .lede{font-size:17.5px; color:var(--muted); margin:0 0 10px; max-width:64ch;}
  .meta{font-size:13px; color:#9CA3AF; margin:0 0 40px; padding-bottom:28px; border-bottom:1px solid var(--line-soft);}
  section{scroll-margin-top:calc(var(--header-h) + 24px); padding-bottom:8px;}
  h2{font-size:22px; line-height:1.3; letter-spacing:-.015em; font-weight:650; margin:44px 0 14px;}
  h3{font-size:16.5px; font-weight:650; margin:30px 0 8px;}
  p{margin:0 0 16px; max-width:70ch;}
  ul,ol.steps{max-width:70ch;}
  ul{padding-left:20px; margin:0 0 16px;}
  li{margin:0 0 8px;}
  strong{font-weight:600; color:var(--ink);}
  a{color:#B45309;}
  code{
    font-family:ui-monospace,SFMono-Regular,'SF Mono',Menlo,Consolas,monospace;
    font-size:.875em; background:var(--bg-2); border:1px solid var(--line);
    border-radius:5px; padding:1.5px 5px; color:var(--ink-2);
  }

  /* passos numerados */
  ol.steps{list-style:none; counter-reset:step; padding:0; margin:0 0 20px;}
  ol.steps>li{counter-increment:step; position:relative; padding-left:42px; margin:0 0 18px;}
  ol.steps>li::before{
    content:counter(step); position:absolute; left:0; top:1px;
    width:26px; height:26px; border-radius:50%;
    background:var(--accent-soft); color:var(--accent);
    font-size:12.5px; font-weight:700; display:flex; align-items:center; justify-content:center;
  }

  /* avisos */
  .note{border:1px solid var(--line); border-left:3px solid var(--accent); background:var(--bg-2);
        border-radius:var(--radius); padding:14px 18px; margin:0 0 20px; max-width:70ch;}
  .note p:last-child{margin-bottom:0;}
  .note .label{display:block; font-size:11px; font-weight:700; letter-spacing:.07em;
        text-transform:uppercase; color:var(--accent); margin-bottom:5px;}
  .note.warn{border-left-color:#DC2626;}
  .note.warn .label{color:#DC2626;}

  /* caminho na interface */
  .path{display:inline-flex; align-items:center; gap:7px; flex-wrap:wrap;
        background:var(--bg-2); border:1px solid var(--line); border-radius:8px;
        padding:6px 12px; font-size:14px; color:var(--ink-2); font-weight:500;}
  .path span.sep{color:#9CA3AF;}

  /* tabela */
  .tw{overflow-x:auto; margin:0 0 20px; border:1px solid var(--line); border-radius:var(--radius);}
  table{border-collapse:collapse; width:100%; font-size:14.5px; min-width:440px;}
  th,td{text-align:left; padding:11px 16px; border-bottom:1px solid var(--line-soft); vertical-align:top;}
  th{background:var(--bg-2); font-weight:650; font-size:13px; color:var(--ink-2);}
  tr:last-child td{border-bottom:none;}

  /* perguntas frequentes */
  .faq details{border-bottom:1px solid var(--line-soft); padding:4px 0;}
  .faq details:first-of-type{border-top:1px solid var(--line-soft);}
  .faq summary{cursor:pointer; list-style:none; padding:15px 28px 15px 0; position:relative;
        font-weight:600; font-size:15.5px; color:var(--ink);}
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary::after{content:'+'; position:absolute; right:4px; top:12px; font-size:20px; font-weight:400; color:var(--muted);}
  .faq details[open] summary::after{content:'\2212';}
  .faq details p{padding:0 0 15px; margin:0; color:var(--ink-2);}

  footer.site{border-top:1px solid var(--line-soft); margin-top:24px;}
  footer.site .inner{max-width:1180px; margin:0 auto; padding:26px 24px 44px; font-size:13.5px; color:var(--muted);}
  footer.site a{color:var(--muted);}

  /* telas pequenas */
  .toc-mobile{display:none;}
  @media (max-width:900px){
    .shell{grid-template-columns:minmax(0,1fr); gap:0;}
    nav.toc{display:none;}
    .toc-mobile{display:block; margin:26px 0 8px; border:1px solid var(--line); border-radius:var(--radius); background:var(--bg-2);}
    .toc-mobile summary{cursor:pointer; padding:12px 16px; font-weight:600; font-size:14px;}
    .toc-mobile ol{margin:0; padding:0 16px 14px 32px; font-size:14px;}
    .toc-mobile li{margin:0 0 7px;}
    .toc-mobile a{color:var(--ink-2); text-decoration:none;}
    h1{font-size:28px;}
    main{padding-top:8px;}
  }

  /* pílula do topo quando vira link */
  a.pill{text-decoration:none;}
  a.pill:hover{filter:brightness(.96);}

  /* cartões de navegação entre páginas */
  .cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:14px; margin:0 0 20px; max-width:70ch;}
  .card{display:block; border:1px solid var(--line); border-radius:var(--radius); padding:16px 18px;
        text-decoration:none; color:inherit; background:var(--bg);
        transition:border-color .15s ease, box-shadow .15s ease;}
  .card:hover{border-color:#D1D5DB; box-shadow:0 1px 3px rgba(0,0,0,.06);}
  .card .t{display:block; font-weight:650; font-size:15px; color:var(--ink); margin-bottom:4px;}
  .card .d{display:block; font-size:13.5px; color:var(--muted); line-height:1.55;}
  .card.soon{opacity:.62; pointer-events:none;}

  /* glossário de termos */
  dl.terms{margin:0 0 20px; max-width:70ch;}
  dl.terms dt{font-weight:650; font-size:15px; color:var(--ink); margin:18px 0 3px;}
  dl.terms dd{margin:0; color:var(--ink-2);}