:root{
    --navy:#0D2137; --areia:#FAF8F5; --grafite:#2E3944; --cinza:#677381;
    --ouro-texto:#996922; --ouro-fio:#BE832D; --champanhe:#EDD08A;
    --ground:var(--areia); --surface:#FFFFFF; --surface-2:#F4F0E9;
    --ink:var(--grafite); --ink-strong:var(--navy); --muted:var(--cinza);
    --rule:#E4DDD2; --rule-strong:#CFC0A6;
    --accent:var(--ouro-texto); --accent-line:var(--ouro-fio); --focus:#7A5218;
    --fio-ouro:linear-gradient(90deg,#C2862E 0%,#E3BE7B 26%,#F4E7D7 46%,#D9AC5E 68%,#C2862E 100%);
    --tipo-ui:Poppins,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --tipo-leitura:Lora,Georgia,"Times New Roman",serif;
  }
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){
      --ground:#0A1726; --surface:#0E1F32; --surface-2:#13273D;
      --ink:#D9D5CE; --ink-strong:#F3EFE8; --muted:#96A5B6;
      --rule:#1D3149; --rule-strong:#33506D;
      --accent:var(--champanhe); --accent-line:#C2862E; --focus:var(--champanhe);
    }
  }
  :root[data-theme="dark"]{
    --ground:#0A1726; --surface:#0E1F32; --surface-2:#13273D;
    --ink:#D9D5CE; --ink-strong:#F3EFE8; --muted:#96A5B6;
    --rule:#1D3149; --rule-strong:#33506D;
    --accent:var(--champanhe); --accent-line:#C2862E; --focus:var(--champanhe);
  }

  *{box-sizing:border-box}
  ::selection{background:#EDD08A; color:#0D2137}
  html{scroll-behavior:smooth}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation-duration:.01ms!important; transition-duration:.01ms!important}
  }
  body{
    margin:0; background:var(--ground); color:var(--ink);
    font-family:var(--tipo-leitura); font-size:1.0625rem; line-height:1.75;
    -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
    font-kerning:normal; font-variant-ligatures:common-ligatures;
  }
  .wrap{max-width:73rem; margin:0 auto; padding:0 1.75rem}
  a:focus-visible,button:focus-visible{outline:3px solid var(--focus); outline-offset:3px; border-radius:2px}
  .pular{position:absolute; left:-9999px; top:0; z-index:100; background:var(--champanhe);
    color:var(--navy); font-weight:500; padding:.75rem 1.25rem; font-family:var(--tipo-ui); font-size:.875rem;
    text-decoration:none}
  .pular:focus{left:1rem; top:1rem}

  /* ---- cabeçalho ---- */
  .topo{background:var(--navy); position:relative; z-index:50}
  .topo::after{content:""; position:absolute; left:0; right:0; bottom:0; height:3px; background:var(--fio-ouro)}
  .topo-in{display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
    gap:1rem 2.5rem; padding:1.5rem 0}
  .marca{display:inline-flex; align-items:center; text-decoration:none; min-height:2.75rem}
  .marca img{height:3.25rem; width:auto; display:block}
  nav.principal ul{list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:.25rem 1.375rem}
  nav.principal a{font-family:var(--tipo-ui); font-size:.8125rem; letter-spacing:.015em;
    color:#C6D2DE; text-decoration:none; padding:.625rem .125rem; display:inline-block;
    min-height:2.75rem; line-height:1.5rem; border-bottom:2px solid transparent}
  nav.principal a:hover,nav.principal a[aria-current]{color:var(--champanhe); border-bottom-color:var(--champanhe)}
  .topo a:focus-visible{outline-color:var(--champanhe)}
  .nav-contato{border:1px solid rgba(237,208,138,.45); border-radius:2px;
    padding:.5rem 1.125rem!important; color:#F3EFE8!important}
  .nav-contato:hover{border-color:var(--champanhe)!important; color:var(--champanhe)!important;
    background:rgba(237,208,138,.08)}
  @media(min-width:62rem){
    .topo{position:sticky; top:0}
    .topo-in{transition:padding .28s ease} .marca img{transition:height .28s ease}
    .topo.compacto{box-shadow:0 8px 24px -14px rgba(0,0,0,.7)}
    .topo.compacto .topo-in{padding:.625rem 0}
    .topo.compacto .marca img{height:2.25rem}
    h2{scroll-margin-top:6rem}
  }

  /* ---- abertura ---- */
  .capa{background:var(--navy); color:#D9D5CE; padding:5.5rem 0 5rem; position:relative; overflow:hidden}
  .capa .moldura-bg{display:none}
  .capa > .wrap{position:relative; z-index:1}
  .capa::after{
    content:""; position:absolute; z-index:0; right:6%; top:50%; transform:translateY(-50%);
    width:min(21rem,28%); aspect-ratio:1; pointer-events:none; opacity:.07;
    background:url(../img/simbolo-branco-cheio.svg) center/contain no-repeat;
  }
  @media(max-width:56rem){.capa::after{display:none}}
  .rotulo{font-family:var(--tipo-ui); font-weight:500; font-size:.6875rem; letter-spacing:.19em;
    text-transform:uppercase; color:var(--champanhe); margin:0 0 1.5rem}
  h1{font-family:var(--tipo-ui); font-weight:300; font-size:clamp(2rem,4.6vw,3.125rem);
    line-height:1.1; letter-spacing:-.022em; margin:0; text-wrap:balance; max-width:20ch}
  h1 .premissa{display:block; color:#8FA2B6}
  h1 .virada{display:block; color:#F3EFE8}
  .capa .fio{height:3px; width:5.5rem; background:var(--fio-ouro); border:0; margin:2rem 0 0}
  .capa-meta{font-family:var(--tipo-ui); font-size:.8125rem; color:#8FA2B6; margin:1.75rem 0 0;
    display:flex; flex-wrap:wrap; gap:.25rem 1.75rem}

  /* ---- resumo ---- */
  .resumo{background:var(--surface-2); border-bottom:1px solid var(--rule); padding:2.5rem 0}
  .resumo h2{font-family:var(--tipo-ui); font-weight:500; font-size:.6875rem; letter-spacing:.19em;
    text-transform:uppercase; color:var(--accent); margin:0 0 1rem}
  .resumo ul{list-style:none; margin:0; padding:0; display:grid; gap:.75rem; max-width:62ch}
  .resumo li{position:relative; padding-left:1.5rem; font-size:1rem; line-height:1.6}
  .resumo li::before{content:""; position:absolute; left:0; top:.66em; width:.5rem; height:.5rem;
    border:1px solid var(--accent-line); transform:rotate(45deg)}

  /* ---- corpo com sumário ---- */
  .leitura{display:block; padding:3.5rem 0 4rem}
  @media(min-width:64rem){
    .leitura{display:grid; grid-template-columns:14rem 1fr; gap:4.5rem; align-items:start}
  }
  nav.sumario{display:none}
  @media(min-width:64rem){
    nav.sumario{display:block; position:sticky; top:7rem; font-family:var(--tipo-ui)}
  }
  nav.sumario p{font-size:.625rem; letter-spacing:.19em; text-transform:uppercase;
    color:var(--muted); margin:0 0 1rem; font-weight:500}
  nav.sumario ol{list-style:none; margin:0; padding:0; display:flex; flex-direction:column}
  nav.sumario a{display:block; font-size:.8125rem; line-height:1.35; color:var(--muted);
    text-decoration:none; padding:.5rem 0 .5rem .875rem; border-left:2px solid var(--rule)}
  nav.sumario a:hover{color:var(--ink-strong)}
  nav.sumario a.on{color:var(--ink-strong); border-left-color:var(--accent-line)}

  article{min-width:0; max-width:38rem}
  h2{font-family:var(--tipo-ui); font-weight:400; font-size:clamp(1.375rem,2.8vw,1.75rem);
    line-height:1.2; letter-spacing:-.016em; color:var(--ink-strong); margin:0 0 .5rem; text-wrap:balance}
  h2 + .fio{height:3px; width:3.5rem; background:var(--fio-ouro); border:0; margin:0 0 1.75rem}
  article section{padding:0 0 3rem}
  article section + section{border-top:1px solid var(--rule); padding-top:3rem}
  p{margin:0 0 1.125rem}
  article p:last-child{margin-bottom:0}
  strong{color:var(--ink-strong); font-weight:600}
  em{font-style:italic}

  .destaque{
    font-family:var(--tipo-ui); font-weight:300; font-size:clamp(1.125rem,2.1vw,1.3125rem);
    line-height:1.45; color:var(--ink-strong); border-left:2px solid var(--accent-line);
    padding-left:1.5rem; margin:2rem 0;
  }
  .obstaculos{margin:1.75rem 0 0}
  .obst{border-top:1px solid var(--rule); padding:1.5rem 0}
  .obst:last-child{border-bottom:1px solid var(--rule)}
  .obst h3{font-family:var(--tipo-ui); font-weight:500; font-size:1.0625rem; line-height:1.35;
    color:var(--ink-strong); margin:0 0 .5rem; letter-spacing:-.005em}
  .obst p{font-size:1rem; margin:0}
  .curto{font-family:var(--tipo-ui); font-weight:300; font-size:1.125rem; color:var(--ink-strong);
    margin:1.75rem 0 0}

  /* ---- fecho ---- */
  .fecho{background:var(--navy); color:#C6D2DE; padding:5rem 0; position:relative; overflow:hidden}
  .fecho .simb{position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
    width:min(26rem,60%); opacity:.07; pointer-events:none}
  .fecho .simb img{width:100%; height:auto; display:block}
  .fecho .in{position:relative; max-width:44rem}
  .fecho p{font-family:var(--tipo-leitura); font-size:clamp(1.0625rem,2vw,1.1875rem); line-height:1.75}
  .fecho .arremate{
    font-family:var(--tipo-ui); font-weight:300; font-size:clamp(1.5rem,3.4vw,2.125rem);
    line-height:1.2; letter-spacing:-.02em; color:#F3EFE8; margin:2rem 0 0; text-wrap:balance;
  }
  .fecho .arremate b{color:var(--champanhe); font-weight:400; display:block; margin-top:.75rem}
  .acao{font-family:var(--tipo-ui); font-size:.875rem; font-weight:500; color:var(--champanhe);
    text-decoration:none; display:inline-flex; align-items:center; min-height:2.75rem;
    border-bottom:1px solid var(--champanhe); margin-top:2.5rem}
  .acao::after{content:" →"; white-space:pre}
  .acao:hover{color:#F3EFE8; border-bottom-color:#F3EFE8}
  .fecho a:focus-visible{outline-color:var(--champanhe)}

  footer{background:var(--navy); color:#9FB0C2; padding:3rem 0 2.5rem; position:relative}
  footer::before{content:""; position:absolute; left:0; right:0; top:0; height:3px; background:var(--fio-ouro)}
  .legal{font-family:var(--tipo-ui); font-size:.75rem; font-weight:300; line-height:1.8; color:#8B9CAE; margin:0}
  .legal b{color:#C6D2DE; font-weight:500}

  .nota-proto{background:var(--surface-2); border-bottom:1px solid var(--rule);
    font-family:var(--tipo-ui); font-size:.8125rem; font-weight:300; color:var(--muted);
    padding:1rem 0; line-height:1.6; max-width:none; margin:0}
  .nota-proto b{color:var(--ink-strong); font-weight:500}