:root{
    --teal: #078d8c;
    --teal-deep: #0B857D;
    --panel: #1B1C22;
    --panel-raised: #24252D;
    --line: #34353F;
    --text: #ECEAE3;
    --text-dim: #9C9AA4;
    --yellow: #FFC229;
    --orange: #F2891D;
    --display: 'Baloo 2', sans-serif;
    --sans: 'Inter', sans-serif;
    --mono: 'JetBrains Mono', monospace;
  }

  *{ box-sizing: border-box; }
  html{ scroll-behavior: smooth; }

  body{
    margin: 0;
    background: var(--teal);
    background-image:
      radial-gradient(circle at 8% 6%, rgba(255,255,255,0.10), transparent 40%),
      radial-gradient(circle at 92% 90%, rgba(0,0,0,0.12), transparent 45%);
    color: var(--text);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
  }

  a{ color: var(--yellow); text-decoration: underline; text-decoration-color: rgba(255,194,41,0.45); text-underline-offset: 3px; }
  a:hover{ text-decoration-color: currentColor; }
  a:focus-visible, button:focus-visible{
    outline: 2px solid var(--yellow);
    outline-offset: 2px;
  }

  nav.toc a{ text-decoration: none; }

 /* ---------- seção de abertura, fundo verde-azulado (teal) ---------- */
  .hero-outer{
    max-width: 1180px;
    margin: 0 auto;
    padding: 56px 56px 40px;
  }
  .eyebrow-tag{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,0,0,0.18);
    border: 1px solid rgba(255,255,255,0.18);
    color: #E7FFFC;
    font-size: 0.82rem;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 22px;
  }
  .hero-outer h1{
    font-family: var(--display);
    font-weight: 800;
    color: var(--yellow);
    font-size: clamp(2.4rem, 5.2vw, 3.6rem);
    line-height: 1.02;
    letter-spacing: -0.01em;
    margin: 0 0 10px;
    text-shadow: 0 3px 0 rgba(0,0,0,0.12);
  }
  .hero-outer p.lede{
    font-family: var(--display);
    font-weight: 600;
    color: #FFF6DE;
    font-size: clamp(1.05rem, 1.6vw, 1.3rem);
    margin: 0;
    max-width: 46ch;
  }

  /* ---------- o painel escuro flutuante que sustenta todo o resto ---------- */
  .panel-wrap{
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px 64px;
  }
  .panel{
    background: var(--panel);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 22px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.35);
  }

  .shell{ display: grid; grid-template-columns: 264px minmax(0, 1fr); }
  .sidebar{ border-radius: 22px 0 0 22px; }
  .shell > main{ border-radius: 0 22px 22px 0; }

  /* ---------- sidebar ---------- */
  .sidebar{
    position: sticky;
    top: 0;
    align-self: start;
    max-height: 100vh;
    overflow-y: auto;
    padding: 36px 24px 36px 30px;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .sidebar::-webkit-scrollbar{ display: none; }
  .brand{
    font-family: var(--display);
    font-weight: 700;
    color: var(--text);
    font-size: 1.05rem;
    margin: 0 0 2px;
  }
  .brand-sub{ color: var(--text-dim); font-size: 0.8rem; margin: 0 0 26px; }

  nav.toc{ display: flex; flex-direction: column; gap: 2px; }
  nav.toc .group-label{ font-size: 0.72rem; color: var(--text-dim); margin: 16px 0 6px; }
  nav.toc .group-label:first-child{ margin-top: 0; }
  nav.toc a{
    color: var(--text-dim);
    font-size: 0.92rem;
    padding: 6px 10px;
    border-radius: 6px;
    margin: 0 -10px;
    border-left: 2px solid transparent;
  }
  nav.toc a:hover{ color: var(--text); text-decoration: none; background: var(--panel-raised); }
  nav.toc a.active{ color: var(--yellow); background: var(--panel-raised); border-left-color: var(--orange); }

  /* ---------- main content ---------- */
  main{ padding: 48px 52px 96px; min-width: 0; }

  .quickstart{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 52px;
  }
  .quickstart div{ background: var(--panel-raised); padding: 20px 22px; }
  .quickstart .step-n{ font-family: var(--mono); color: var(--orange); font-size: 0.8rem; }
  .quickstart p{ margin: 8px 0 0; font-size: 0.92rem; color: var(--text-dim); }

  .strand{ width: 100%; height: 22px; margin: 52px 0 36px; display: block; }
  .strand path{ stroke: var(--line); stroke-width: 1.5; fill: none; }

  /* ---------- intro block (logo abaixo do início rápido) ---------- */
  .intro-block{ max-width: 720px; margin-bottom: 28px; scroll-margin-top: 24px; }
  .intro-block .intro-lede{ font-size: 1.05rem; margin-bottom: 14px; }
  .intro-block .intro-tags{
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    font-family: var(--display);
    font-weight: 700;
    color: var(--yellow);
    font-size: 1.05rem;
    margin: 0;
  }
  .intro-block .tag-sep{ color: var(--text-dim); font-weight: 400; }

  /* ---------- lista de perguntas frequentes ---------- */
  .faq-list{ margin: 0; max-width: 68ch; }
  .faq-list dt{ font-weight: 600; margin-bottom: 4px; }
  .faq-list dd{ margin: 0 0 18px; color: var(--text-dim); }
  .faq-list dd:last-child{ margin-bottom: 0; }

  section{ margin-bottom: 8px; }
  section h2{
    font-family: var(--display);
    font-weight: 700;
    color: var(--yellow);
    font-size: 1.5rem;
    letter-spacing: -0.005em;
    margin: 0 0 6px;
    scroll-margin-top: 24px;
  }
  section .section-kicker{ color: var(--text-dim); font-size: 0.92rem; margin: 0 0 22px; }
  section h3{
    font-family: var(--sans);
    font-weight: 600;
    color: var(--text);
    font-size: 1.05rem;
    margin: 32px 0 10px;
    scroll-margin-top: 24px;
  }
  p{ margin: 0 0 16px; max-width: 68ch; }
  ul, ol{ margin: 0 0 16px; padding-left: 22px; max-width: 68ch; }
  li{ margin-bottom: 6px; }

  code{
    font-family: var(--mono);
    font-size: 0.85em;
    background: var(--panel-raised);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 1px 6px;
  }
  kbd{
    font-family: var(--mono);
    font-size: 0.82em;
    background: var(--panel-raised);
    border: 1px solid var(--line);
    border-bottom-width: 2px;
    border-radius: 5px;
    padding: 2px 7px;
    color: var(--text);
  }

  .callout{
    border-left: 3px solid var(--orange);
    background: linear-gradient(90deg, rgba(242,137,29,0.12), rgba(242,137,29,0.03));
    padding: 14px 18px;
    border-radius: 0 10px 10px 0;
    margin: 20px 0 24px;
    max-width: 62ch;
  }
  .callout p{ margin: 0; font-size: 0.94rem; }
  .callout p + p{ margin-top: 8px; }

  .flow-diagram{
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 14px;
    max-width: 560px;
    margin: 20px 0 28px;
  }
  .flow-diagram .flow-box{
    background: var(--panel-raised);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 14px 16px;
  }
  .flow-diagram .flow-box strong{ color: var(--yellow); display:block; margin-bottom: 4px; font-size: 0.92rem; }
  .flow-diagram .flow-box span{ color: var(--text-dim); font-size: 0.85rem; }
  .flow-diagram .flow-vs{
    font-family: var(--display);
    color: var(--orange);
    font-weight: 700;
    font-size: 0.85rem;
    text-align: center;
  }

  table{ border-collapse: collapse; width: 100%; max-width: 760px; margin: 4px 0 28px; font-size: 0.92rem; }
  th, td{ text-align: left; padding: 10px 16px 10px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
  th{ color: var(--text-dim); font-weight: 500; font-size: 0.82rem; }
  td:first-child, th:first-child{ white-space: nowrap; }

  .tab-grid{
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    margin: 8px 0 32px;
  }
  .tab-row{ background: var(--panel-raised); padding: 18px 22px; display: grid; grid-template-columns: 160px 1fr; gap: 18px; }
  .tab-row .tab-name{ font-weight: 600; color: var(--yellow); }
  .tab-row p{ margin: 0; color: var(--text-dim); font-size: 0.92rem; max-width: 56ch; }

  footer{
    border-top: 1px solid var(--line);
    margin-top: 72px;
    padding-top: 24px;
    color: var(--text-dim);
    font-size: 0.85rem;
  }

  /* ---------- media placeholder (imagem/GIF a inserir depois) ---------- */
  .media-slot{
    max-width: 640px;
    margin: 6px 0 28px;
    border: 1.5px dashed var(--line);
    border-radius: 12px;
    padding: 22px 24px;
    background: var(--panel-raised);
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .media-slot .slot-kind{
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--orange);
    letter-spacing: 0.02em;
  }
  .media-slot .slot-file{
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text);
  }
  .media-slot .slot-desc{
    font-size: 0.88rem;
    color: var(--text-dim);
    margin: 0;
    max-width: 56ch;
  }
  
  .media-slot img{
    display: block;
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--line);
  }
  .media-slot figcaption{
    font-size: 0.85rem;
    color: var(--text-dim);
    font-style: italic;
  }

  @media (max-width: 860px){
    .hero-outer{ padding: 40px 24px 28px; }
    .panel-wrap{ padding: 0 12px 48px; }
    .shell{ grid-template-columns: 1fr; }
    .sidebar{ position: static; max-height: none; border-radius: 22px 22px 0 0; }
    .shell > main{ border-radius: 0 0 22px 22px; }
    main{ padding: 36px 22px 72px; }
    .quickstart{ grid-template-columns: 1fr; }
    .tab-row{ grid-template-columns: 1fr; gap: 4px; }

    /* tabelas de 3 colunas viram "cartões" empilhados no celular --
       3 colunas de texto espremidas numa tela estreita ficavam com
       linhas de altura desigual, tornando os separadores confusos */
    table.stack-mobile thead{ display: none; }
    table.stack-mobile, table.stack-mobile tbody, table.stack-mobile tr, table.stack-mobile td{
      display: block;
      width: 100%;
    }
    table.stack-mobile tr{
      border-bottom: 1px solid var(--line);
      padding: 12px 0;
    }
    table.stack-mobile td{
      border-bottom: none;
      padding: 3px 0;
    }
    table.stack-mobile td::before{
      content: attr(data-label);
      display: block;
      color: var(--text-dim);
      font-size: 0.72rem;
      margin-bottom: 2px;
    }
  }

  @media (prefers-reduced-motion: reduce){ html{ scroll-behavior: auto; } }

  /* ---------- interruptor de idioma ---------- */
  html:not([data-lang]) .lang-pt,
  html:not([data-lang]) .lang-en{ display: none; }
  html[data-lang="pt"] .lang-en{ display: none; }
  html[data-lang="en"] .lang-pt{ display: none; }

  .lang-switch{
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    margin: 0 0 26px;
  }
  .lang-switch-btn{
    font-family: var(--mono);
    font-size: 0.78rem;
    background: var(--panel-raised);
    color: var(--text-dim);
    border: none;
    padding: 6px 14px;
    cursor: pointer;
  }
  .lang-switch-btn + .lang-switch-btn{ border-left: 1px solid var(--line); }
  .lang-switch-btn:hover{ color: var(--text); }
  .lang-switch-btn[aria-pressed="true"]{ color: var(--yellow); background: var(--panel); }
  .lang-switch-btn:focus-visible{ outline: 2px solid var(--yellow); outline-offset: -2px; }

  /* ---------- galeria de prints dos painéis ---------- */
  .panel-gallery{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 8px 0 32px;
    max-width: 640px;
  }
  @media (max-width: 560px){
    .panel-gallery{ grid-template-columns: 1fr; }
  }
  .panel-gallery figure{
    margin: 0;
    background: var(--panel-raised);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .panel-gallery img{
    display: block;
    width: 100%;
    border-radius: 6px;
    border: 1px solid var(--line);
  }
  .panel-gallery figcaption{
    font-size: 0.82rem;
    color: var(--text-dim);
    line-height: 1.4;
  }
  .panel-gallery figcaption strong{ color: var(--text); }