:root{
    --ink:#0C1B33;
    --tile:#1D4E89;
    --glaze:#3E8FB0;
    --glaze-ink:#2A6E8A;
    --paper:#FAFBFD;
    --line:#D8E0EC;
    --amber:#A8551A;
    --muted:#3A4A63;
    --mono:'JetBrains Mono',ui-monospace,monospace;
    --body:'Instrument Sans',system-ui,sans-serif;
    --display:'Newsreader',Georgia,serif;
    --on-tile:#fff;
    --tile-hover:#163C6B;
    --nav-bg:rgba(250,251,253,.94);
    --code-bg:#EEF2F8;
    --log:rgba(12,27,51,.09);
    --contact-bg:#0C1B33;
    --contact-fg:#E7EDF6;
    --contact-muted:#AFC0D8;
    --contact-line:#2A3F5F;
    --amber-hover:#8C4715;
    --foot-bg:#08152A;
    --foot-fg:#8698B4;
    --foot-link:#AFC0D8;
    --foot-line:#1B2C47;
    color-scheme:light;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation:none!important;transition:none!important}
  }
  body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.62;font-size:17px;-webkit-font-smoothing:antialiased}
  a{color:var(--tile)}
  a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:2px}
  .skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:100}
  .skip:focus{left:0}
  .wrap{max-width:1000px;margin:0 auto;padding:0 24px}

  /* offset editorial: rótulo mono na goteira, conteúdo à direita */
  .rail{display:grid;grid-template-columns:120px minmax(0,1fr);gap:0 32px;align-items:start}
  @media(max-width:760px){.rail{grid-template-columns:1fr;gap:10px}}
  .rail-label{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--glaze-ink);padding-top:.55em}

  nav{position:sticky;top:0;background:var(--nav-bg);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:10}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap;padding:8px 0}
  .logo{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-weight:500;font-size:15px;text-decoration:none;color:var(--ink)}
  .logo svg{width:20px;height:20px;flex:none}
  .logo b{color:var(--tile)}
  .nav-links{display:flex;gap:22px;list-style:none;flex-wrap:wrap}
  .nav-links a{text-decoration:none;color:var(--muted);font-size:15px;font-weight:500}
  .nav-links a:hover{color:var(--tile)}
  @media(max-width:560px){.nav-links{gap:14px;font-size:13.5px}}
  @media(max-width:380px){.nav-links{gap:11px;font-size:13px}}

  header{padding:96px 0 84px}
  .eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--glaze-ink);text-transform:uppercase;padding-top:.5em}
  @media(max-width:760px){.eyebrow{padding-top:0;margin-bottom:18px}}
  h1{font-family:var(--display);font-weight:400;font-size:clamp(2.2rem,5vw,3.75rem);line-height:1.1;letter-spacing:-.015em;max-width:24ch}
  h1 em{font-style:italic;color:var(--tile)}
  .hero-sub{margin-top:26px;max-width:56ch;font-size:1.08rem;color:var(--muted)}
  .hero-cta{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
  .btn{display:inline-block;padding:13px 24px;border-radius:5px;text-decoration:none;font-weight:600;font-size:15px}
  .btn-primary{background:var(--tile);color:var(--on-tile)}
  .btn-primary:hover{background:var(--tile-hover)}
  .btn-ghost{border:1.5px solid var(--line);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--tile);color:var(--tile)}

  section{padding:76px 0;border-top:1px solid var(--line)}
  h2{font-family:var(--display);font-weight:400;font-size:clamp(1.5rem,3vw,2.05rem);line-height:1.22;letter-spacing:-.01em;margin-bottom:34px;max-width:28ch;text-wrap:balance}

  /* trabalho: entradas de comprimento desigual, sem caixas */
  .case{padding:30px 0;border-top:1px solid var(--line)}
  .case:first-of-type{border-top:none;padding-top:0}
  .case h3{font-family:var(--display);font-weight:500;font-size:1.32rem;line-height:1.3;margin-bottom:12px;max-width:46ch;text-wrap:balance}
  .case p{color:var(--muted);max-width:66ch;font-size:16px}
  .case-meta{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--glaze-ink);margin-bottom:10px}
  code{font-family:var(--mono);font-size:.92em;background:var(--code-bg);border:1px solid var(--line);border-radius:3px;padding:1px 5px;color:var(--tile)}
  .nda{margin-top:34px;font-size:15px;color:var(--muted);border-left:2px solid var(--amber);padding-left:16px;max-width:56ch}

  /* serviços: lista, não grelha de cartões */
  .svc{border-top:1px solid var(--line);padding:24px 0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:8px 32px;align-items:baseline}
  .svc:first-of-type{border-top:none;padding-top:0}
  @media(max-width:760px){.svc{grid-template-columns:1fr;gap:6px}}
  .svc h3{font-family:var(--display);font-weight:500;font-size:1.2rem}
  .svc p{color:var(--muted);font-size:16px}

  .about p+p{margin-top:16px}
  .about p{max-width:62ch;color:var(--muted)}
  .about p strong{color:var(--ink);font-weight:600}
  .colophon{margin-top:36px;font-family:var(--mono);font-size:13.5px;line-height:1.9;color:var(--muted);border-top:1px solid var(--line);padding-top:20px}
  .colophon b{color:var(--tile);font-weight:500}

  .contact{background:var(--contact-bg);color:var(--contact-fg);border-top:none}
  .contact .rail-label{color:var(--glaze)}
  .contact h2{color:var(--contact-fg)}
  .contact p{max-width:54ch;color:var(--contact-muted)}
  .contact .btn-primary{background:var(--amber);color:#fff}
  .contact .btn-primary:hover{background:var(--amber-hover)}
  .contact .btn-ghost{border-color:var(--contact-line);color:var(--contact-fg)}
  .contact .btn-ghost:hover{border-color:var(--glaze);color:var(--glaze)}

  footer{background:var(--foot-bg);color:var(--foot-fg);font-family:var(--mono);font-size:12.5px;padding:22px 0;border-top:1px solid var(--foot-line)}
  .foot-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-right:72px} /* espaço para o botão whatsapp */
  footer a{color:var(--foot-link);text-decoration:none}
  footer a:hover{color:var(--contact-fg);text-decoration:underline}

  /* hero: log de produção em fundo */
  header{position:relative;overflow:hidden;isolation:isolate}
  .log{position:absolute;inset:0;z-index:-1;padding:24px;font:400 12px/1.7 var(--mono);color:var(--log);overflow:hidden;pointer-events:none;white-space:pre;user-select:none;
    -webkit-mask-image:linear-gradient(180deg,transparent,#000 15%,#000 70%,transparent);mask-image:linear-gradient(180deg,transparent,#000 15%,#000 70%,transparent)}
  .log div{opacity:0;transform:translateY(4px);animation:logIn .35s ease forwards}
  @keyframes logIn{to{opacity:1;transform:none}}
  @media (prefers-reduced-motion:reduce){.log div{opacity:1;transform:none}}

  /* whatsapp: botão fixo, canto inferior direito */
  .wa{position:fixed;right:20px;bottom:20px;z-index:20;width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.22);transition:transform .15s ease}
  .wa:hover{transform:translateY(-2px)}
  .wa svg{width:30px;height:30px;fill:currentColor}

  /* 2026-10: posicionamento — secções novas, mesma linguagem visual */
  .eyebrow{line-height:1.7}
  .hero-note{margin-top:14px;color:var(--ink);font-family:var(--display);font-style:italic;font-size:1.15rem;line-height:1.45}

  .problems{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 32px;max-width:72ch}
  @media(max-width:760px){.problems{grid-template-columns:1fr}}
  .problems li{position:relative;padding-left:18px;color:var(--muted);font-size:16px;line-height:1.5}
  .problems li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:1.5px;background:var(--amber)}

  .proof{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px 24px;margin:0}
  @media(max-width:900px){.proof{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media(max-width:460px){.proof{grid-template-columns:1fr}}
  .proof dt{font-family:var(--display);font-size:clamp(1.6rem,2.6vw,2rem);line-height:1.1;letter-spacing:-.01em;color:var(--ink)}
  .proof dd{margin-top:8px;color:var(--muted);font-size:15px;line-height:1.5}
  .sectors{margin-top:30px;padding-top:18px;border-top:1px solid var(--line);font-family:var(--mono);font-size:13px;letter-spacing:.02em;color:var(--glaze-ink)}

  .steps{display:grid;grid-template-columns:110px minmax(0,1fr);gap:10px 20px;max-width:72ch}
  @media(max-width:560px){.steps{grid-template-columns:1fr;gap:2px 0}.steps dd{margin-bottom:12px}}
  .steps dt{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--glaze-ink);padding-top:.35em}
  .steps dd{color:var(--muted);font-size:16px}

  .principles{list-style:none;max-width:60ch}
  .principles li{padding:12px 0;border-top:1px solid var(--line);color:var(--ink);font-family:var(--display);font-size:1.2rem;line-height:1.35}
  .principles li:first-child{border-top:none;padding-top:0}

  .contact-links{list-style:none;margin-top:30px;font-family:var(--mono);font-size:13.5px;line-height:2;color:var(--contact-muted)}
  .contact-links b{color:var(--glaze);font-weight:500;display:inline-block;min-width:80px}
  .contact-links a{color:var(--contact-fg)}

  /* retrato no hero: terceira coluna do rail em desktop, acima do texto em telemóvel */
  header .rail{grid-template-columns:120px minmax(0,1fr) 260px}
  .portrait{width:100%;height:auto;aspect-ratio:1;object-fit:cover;border-radius:6px;align-self:start;margin-top:.55em;box-shadow:0 1px 0 var(--line)}
  @media(max-width:900px){header .rail{grid-template-columns:120px minmax(0,1fr) 200px}}
  @media(max-width:760px){
    header .rail{grid-template-columns:1fr}
    .portrait{order:-1;width:104px;margin:0 0 22px;border-radius:6px}
  }

  /* dark mode: segue a preferência do sistema; mesma família de azuis, sem preto puro */
  /* dark mode: preferência do sistema, salvo escolha explícita no botão (data-theme) */
  @media (prefers-color-scheme:dark){
    :root:not([data-theme="light"]){
      --ink:#E7EDF6;
      --tile:#7FB3E6;
      --glaze:#5FB0D0;
      --glaze-ink:#7FB8D4;
      --paper:#0E1726;
      --line:#22314B;
      --amber:#E08A35;
      --muted:#AFC0D8;
      --on-tile:#0C1B33;
      --tile-hover:#A3C9F0;
      --nav-bg:rgba(14,23,38,.94);
      --code-bg:#16233A;
      --log:rgba(231,237,246,.075);
      --contact-bg:#08121F;
      --contact-line:#2A3F5F;
      --foot-bg:#060D19;
      --foot-line:#16233A;
      color-scheme:dark;
      --icon-sun:block;
      --icon-moon:none;
    }
    .portrait{box-shadow:0 0 0 1px var(--line)}
    .skip{background:var(--tile);color:var(--on-tile)}
  }
  :root[data-theme="dark"]{
      --ink:#E7EDF6;
      --tile:#7FB3E6;
      --glaze:#5FB0D0;
      --glaze-ink:#7FB8D4;
      --paper:#0E1726;
      --line:#22314B;
      --amber:#E08A35;
      --muted:#AFC0D8;
      --on-tile:#0C1B33;
      --tile-hover:#A3C9F0;
      --nav-bg:rgba(14,23,38,.94);
      --code-bg:#16233A;
      --log:rgba(231,237,246,.075);
      --contact-bg:#08121F;
      --contact-line:#2A3F5F;
      --foot-bg:#060D19;
      --foot-line:#16233A;
      color-scheme:dark;
      --icon-sun:block;
      --icon-moon:none;
  }
  /* botão de tema na nav */
  :root{--icon-sun:none;--icon-moon:block}
  .theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;border:1.5px solid var(--line);border-radius:50%;background:none;color:var(--muted);cursor:pointer}
  .theme-toggle:hover{border-color:var(--tile);color:var(--tile)}
  .theme-toggle svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .theme-toggle .sun{display:var(--icon-sun)}
  .theme-toggle .moon{display:var(--icon-moon)}