:root{
    --black:#0E0E0D;
    --white:#FFFFFF;
    --paper:#F3F2EF;
    --ink:#141414;
    --maxw:1280px;
    --pad:clamp(20px,5vw,80px);
    --radius:10px;
    --matilab-green:#8DDA1A;
  }

  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth;-webkit-tap-highlight-color:rgba(14,14,13,.12)}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

  body{
    background:var(--white);
    color:var(--ink);
    font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;
    font-size:17px;line-height:1.65;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,a,input,select,textarea{touch-action:manipulation}
  :focus-visible{outline:3px solid currentColor;outline-offset:4px}
  .skip-link{position:fixed;left:16px;top:12px;z-index:1000;background:#fff;color:#0E0E0D;padding:12px 18px;transform:translateY(-160%);transition:transform .2s}
  .skip-link:focus-visible{transform:none}
  h1,h2,h3,h4,.display{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;letter-spacing:-.035em;line-height:1.02;text-wrap:balance}
  h1 em,h2 em,h3 em{font-style:italic;font-weight:500}

  /* ---- Surfaces (monochrome) ---- */
  .s{position:relative}
  .s-white{--bg:var(--white);--fg:var(--ink);--muted:#63615C;--line:#E6E3DD;--line-2:#D3CFC7;--panel:#F3F2EF;--btn-bg:var(--ink);--btn-fg:#fff;background:var(--bg);color:var(--fg)}
  .s-paper{--bg:var(--paper);--fg:var(--ink);--muted:#63615C;--line:#E1DDD5;--line-2:#CDC9C0;--panel:#fff;--btn-bg:var(--ink);--btn-fg:#fff;background:var(--bg);color:var(--fg)}
  .s-black{--bg:var(--black);--fg:#F4F2EE;--muted:#9A9791;--line:rgba(244,242,238,.16);--line-2:rgba(244,242,238,.30);--panel:#181816;--btn-bg:#F4F2EE;--btn-fg:var(--ink);background:var(--bg);color:var(--fg)}

  .wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
  .section{padding-block:clamp(84px,11vw,160px)}
  section[id]{scroll-margin-top:96px}

  .eyebrow{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--fg);font-weight:600;display:inline-flex;align-items:center;gap:14px}
  .eyebrow::before{content:"";width:34px;height:1px;background:currentColor;opacity:.5}
  .muted{color:var(--muted)}

  .sec-head{max-width:820px;margin:0 auto clamp(52px,7vw,88px);text-align:center}
  .sec-head .eyebrow{margin-bottom:26px;justify-content:center}
  .sec-head h2{font-size:clamp(34px,5.4vw,68px);font-weight:700}
  .sec-head p{margin-top:24px;color:var(--muted);font-size:18px;line-height:1.65;max-width:60ch;margin-inline:auto}

  /* Buttons */
  .btn{display:inline-flex;align-items:center;gap:10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;font-weight:600;letter-spacing:.02em;padding:16px 28px;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;transition:transform .3s cubic-bezier(.16,1,.3,1),background .3s,border-color .3s,color .3s;white-space:nowrap}
  .btn:active{transform:translateY(1px)}
  .btn-primary{background:var(--btn-bg);color:var(--btn-fg)}
  .btn-primary:hover{opacity:.86}
  .btn-ghost{border-color:var(--line-2);color:var(--fg)}
  .btn-ghost:hover{border-color:var(--fg)}
  .btn svg{width:16px;height:16px;flex:none}

  /* NAV */
  header.nav{position:fixed;inset:0 0 auto 0;z-index:60;transition:background .35s,border-color .35s,backdrop-filter .35s}
  header.nav{border-bottom:1px solid transparent}
  header.nav.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(16px) saturate(120%);-webkit-backdrop-filter:blur(16px) saturate(120%);border-bottom-color:#E6E3DD}
  .nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
  .brand-logo{height:38px;width:auto;filter:brightness(0) invert(1);transition:filter .35s}
  header.nav.scrolled .brand-logo{filter:none}
  .nav-links{display:flex;align-items:center;gap:34px}
  .nav-links a{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13.5px;font-weight:500;letter-spacing:.02em;color:rgba(255,255,255,.82);transition:color .25s}
  .nav-links a:hover{color:#fff}
  header.nav.scrolled .nav-links a{color:#4A4844}
  header.nav.scrolled .nav-links a:hover{color:var(--ink)}
  .nav .btn-primary{background:#fff;color:var(--ink)}
  header.nav.scrolled .nav .btn-primary,header.nav.scrolled .btn-primary{background:var(--ink);color:#fff}
  .burger{display:none;background:none;border:0;color:#fff;width:44px;height:44px;align-items:center;justify-content:center;cursor:pointer;transition:color .35s}
  header.nav.scrolled .burger{color:var(--ink)}
  .burger svg{width:26px;height:26px}
  @media(max-width:1000px){.nav-links,.nav-cta.desktop{display:none}.burger{display:inline-flex}}

  .mobile-menu{position:fixed;inset:0;z-index:59;background:var(--black);color:#F4F2EE;transform:translateY(-100%);transition:transform .45s cubic-bezier(.7,0,.2,1);display:flex;flex-direction:column;justify-content:center;padding:0 var(--pad);gap:2px}
  .mobile-menu.open{transform:translateY(0)}
  .mobile-menu a{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:clamp(28px,8vw,44px);font-weight:600;letter-spacing:-.02em;padding:12px 0;border-bottom:1px solid rgba(244,242,238,.14)}
  .mobile-menu .btn{margin-top:28px;justify-content:center;background:#F4F2EE;color:var(--ink)}

  /* HERO */
  .hero{position:relative;min-height:100dvh;display:flex;align-items:flex-end;padding-bottom:clamp(60px,8vw,110px);isolation:isolate;overflow:hidden;background:var(--black)}
  .hero-media{position:absolute;inset:0;z-index:-2}
  .hero-media img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.06) brightness(.82)}
  .hero-scrim{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(14,14,13,.6) 0%,rgba(14,14,13,.12) 30%,rgba(14,14,13,.35) 60%,rgba(14,14,13,.92) 100%),linear-gradient(90deg,rgba(14,14,13,.72) 0%,rgba(14,14,13,.25) 52%,rgba(14,14,13,0) 85%)}
  .hero-inner{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);width:100%;color:#F4F2EE}
  .hero .eyebrow{color:#F4F2EE}
  .hero h1{font-size:clamp(40px,6vw,86px);font-weight:700;margin-top:28px;max-width:17ch;letter-spacing:-.035em}
  .hero p.lead{margin-top:30px;font-size:clamp(17px,1.7vw,21px);color:rgba(244,242,238,.86);max-width:50ch;line-height:1.55}
  .hero .cta-row{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px}
  .hero .btn-primary{background:#F4F2EE;color:var(--ink)}
  .hero .btn-ghost{border-color:rgba(244,242,238,.4);color:#F4F2EE}
  .hero .btn-ghost:hover{border-color:#F4F2EE;background:rgba(244,242,238,.06)}
  .hero-strip{position:absolute;left:0;right:0;bottom:0;z-index:1;border-top:1px solid rgba(244,242,238,.16)}
  .hero-strip .in{max-width:var(--maxw);margin:0 auto;padding:20px var(--pad);display:flex;flex-wrap:wrap;gap:10px 48px;justify-content:space-between}
  .hero-strip span{font-size:13px;color:rgba(244,242,238,.7);letter-spacing:.01em}
  .hero-strip span b{color:#F4F2EE;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;letter-spacing:.02em;margin-right:7px}
  @media(max-width:720px){.hero-strip{display:none}}

  /* POSITIONING */
  .pos{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,88px);align-items:center}
  .pos .big{font-size:clamp(24px,3.1vw,40px);line-height:1.22;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:500;letter-spacing:-.02em}
  .pos .big b{font-weight:700}
  .stats{display:grid;grid-template-columns:1fr 1fr;gap:0}
  .stat{padding:22px 4px 22px 0;border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
  .stat b{display:block;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;font-size:clamp(36px,4.4vw,54px);letter-spacing:-.03em;line-height:1}
  .stat span{font-size:13px;color:var(--muted);margin-top:8px;display:block;letter-spacing:.01em}
  @media(max-width:820px){.pos{grid-template-columns:1fr;gap:44px}}

  .logos{margin-top:clamp(52px,6vw,80px);padding-top:38px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:center;gap:24px 60px;flex-wrap:wrap}
  .logos .lbl{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);width:100%;text-align:center;margin-bottom:8px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:600}
  .logos span.mark{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;font-size:20px;letter-spacing:.04em;color:var(--ink);opacity:.42;transition:opacity .25s}
  .logos span.mark:hover{opacity:1}

  /* PROCESS */
  .split-sticky{display:grid;grid-template-columns:.82fr 1.18fr;gap:clamp(36px,5vw,80px);align-items:start}
  .split-sticky .stick{position:sticky;top:120px}
  .split-sticky .stick .eyebrow{margin-bottom:24px}
  .split-sticky .stick h2{font-size:clamp(32px,3.8vw,50px)}
  .split-sticky .stick p{margin-top:22px;color:var(--muted);font-size:16.5px;max-width:36ch}
  .steps{display:grid;grid-template-columns:1fr 1fr;gap:0}
  .step{padding:32px 32px 36px;border-top:1px solid var(--line);border-left:1px solid var(--line);transition:background .3s}
  .step:nth-child(-n+2){border-top:0}
  .step:nth-child(odd){border-left:0}
  .step:hover{background:var(--panel)}
  .step .n{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;font-size:14px;letter-spacing:.04em;color:var(--muted)}
  .step h3{margin-top:20px;font-size:20px;font-weight:600;color:var(--fg)}
  .step p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.6}
  @media(max-width:900px){.split-sticky{grid-template-columns:1fr}.split-sticky .stick{position:static}}
  @media(max-width:560px){.steps{grid-template-columns:1fr}.step{border-left:0}.step:nth-child(2){border-top:1px solid var(--line)}}

  /* GESTÃO band */
  .band-figure{position:relative;height:clamp(360px,48vw,600px);overflow:hidden;background:var(--black)}
  .band-figure img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.08) brightness(.66)}
  .band-figure .overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,14,13,.92) 0%,rgba(14,14,13,.55) 46%,rgba(14,14,13,.12) 100%);display:flex;align-items:center}
  .band-figure .overlay .wrap{width:100%;color:#F4F2EE}
  .band-figure .eyebrow{color:#F4F2EE;margin-bottom:22px}
  .band-figure h2{font-size:clamp(32px,5vw,62px);color:#F4F2EE;max-width:15ch;font-weight:700}
  .band-figure p{margin-top:24px;color:rgba(244,242,238,.82);font-size:17px;max-width:50ch;line-height:1.6}
  .methods{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
  .method{padding:40px 34px 44px;border-left:1px solid var(--line);transition:background .3s}
  .method:first-child{border-left:0}
  .method:hover{background:var(--panel)}
  .method .k{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:800;font-size:30px;letter-spacing:-.01em;color:var(--fg)}
  .method h3{margin-top:18px;font-size:20px;font-weight:600;color:var(--fg)}
  .method p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.6}
  @media(max-width:820px){.methods{grid-template-columns:1fr}.method{border-left:0;border-top:1px solid var(--line)}.method:first-child{border-top:0}}

  /* BIM */
  .bim-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
  .bim-visual{position:relative;overflow:hidden;aspect-ratio:4/5;min-height:380px;background:var(--panel);border-radius:var(--radius)}
  .bim-visual img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05)}
  .bim-visual .pill{position:absolute;top:22px;left:22px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:#fff;background:var(--ink);padding:9px 15px;font-weight:600;border-radius:6px}
  .bim-cards{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:32px;border-top:1px solid var(--line)}
  .bim-card{padding:26px 26px 28px;border-left:1px solid var(--line)}
  .bim-card:nth-child(odd){border-left:0}
  .bim-card:nth-child(n+3){border-top:1px solid var(--line)}
  .bim-card h3{font-size:18px;font-weight:600;color:var(--fg)}
  .bim-card p{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.55}
  @media(max-width:900px){.bim-grid{grid-template-columns:1fr}.bim-visual{aspect-ratio:16/10;min-height:0;order:-1}}
  @media(max-width:520px){.bim-cards{grid-template-columns:1fr}.bim-card{border-left:0}.bim-card:nth-child(2){border-top:1px solid var(--line)}}

  .cases{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(24px,3vw,40px);margin-top:clamp(52px,6vw,80px)}
  .case{border-top:1px solid var(--fg);padding-top:24px}
  .case .ci{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;color:var(--muted);font-size:13px}
  .case h3{margin-top:14px;font-size:19px;font-weight:600;color:var(--fg)}
  .case p{margin-top:12px;color:var(--muted);font-size:14.5px;line-height:1.55}
  @media(max-width:900px){.cases{grid-template-columns:1fr 1fr;gap:32px}}
  @media(max-width:520px){.cases{grid-template-columns:1fr}}

  /* SERVICES */
  .svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
  .svc-col{padding:40px 32px 44px;border-left:1px solid var(--line)}
  .svc-col:first-child{border-left:0}
  .svc-col h3{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--fg);font-weight:700;margin-bottom:22px}
  .svc-col ul{list-style:none}
  .svc-col li{padding:14px 0;border-top:1px solid var(--line);font-size:16px;color:var(--fg);transition:padding-left .25s}
  .svc-col li:first-child{border-top:0}
  .svc-col li:hover{padding-left:6px}
  @media(max-width:820px){.svc-grid{grid-template-columns:1fr}.svc-col{border-left:0;border-top:1px solid var(--line)}.svc-col:first-child{border-top:0}}

  .segments{margin-top:clamp(44px,5vw,64px);display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center}
  .segments .sg-lbl{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-right:8px;font-weight:600}
  .segments .chip{border:1px solid var(--line-2);border-radius:var(--radius);padding:10px 22px;font-size:14.5px;color:var(--fg);transition:background .25s,color .25s}
  .segments .chip:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

  /* ABOUT */
  .about-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(34px,5vw,80px);align-items:center}
  .about-figure{position:relative;overflow:hidden;aspect-ratio:4/5;background:var(--panel);border-radius:var(--radius)}
  .about-figure img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.04)}
  .about-figure .badge{position:absolute;left:0;bottom:0;right:0;background:linear-gradient(transparent,rgba(14,14,13,.86));padding:28px 24px 22px;color:#F4F2EE}
  .about-figure .badge b{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;font-size:18px;display:block}
  .about-figure .badge span{font-size:13.5px;color:rgba(244,242,238,.72)}
  .about h2{font-size:clamp(32px,4.6vw,56px)}
  .about .cols{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:36px}
  .about .cols h3{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--fg);margin-bottom:12px}
  .about .cols p{color:var(--muted);font-size:15px;line-height:1.65}
  .about .quote{margin-top:32px;border-top:1px solid var(--line);padding-top:24px;color:var(--fg);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-style:italic;font-weight:500;font-size:18px;line-height:1.5}
  @media(max-width:900px){.about-grid{grid-template-columns:1fr}.about .cols{grid-template-columns:1fr}}

  /* DIMENSIONS */
  .dim-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
  .dim{padding:36px 30px 40px;border-left:1px solid var(--line);transition:background .3s}
  .dim:first-child{border-left:0}
  .dim:hover{background:var(--panel)}
  .dim .ic{width:34px;height:34px;color:var(--fg);margin-bottom:24px}
  .dim h3{font-size:19px;font-weight:600;color:var(--fg)}
  .dim p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.6}
  @media(max-width:900px){.dim-grid{grid-template-columns:1fr 1fr}.dim{border-top:1px solid var(--line)}.dim:nth-child(-n+2){border-top:0}.dim:nth-child(odd){border-left:0}}
  @media(max-width:520px){.dim-grid{grid-template-columns:1fr}.dim{border-left:0;border-top:1px solid var(--line)}.dim:first-child{border-top:0}}

  /* CTA / CONTACT */
  .cta{position:relative;isolation:isolate;overflow:hidden}
  .cta-media{position:absolute;inset:0;z-index:-2}
  .cta-media img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.08) brightness(.36)}
  .cta-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,14,13,.7),rgba(14,14,13,.92))}
  .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(38px,6vw,88px);align-items:start}
  .contact-lead h2{font-size:clamp(36px,5.4vw,72px);font-weight:700}
  .contact-lead p{margin-top:24px;color:rgba(244,242,238,.82);font-size:18px;max-width:40ch}
  .contact-meta{margin-top:38px;display:flex;flex-direction:column}
  .cm-row{display:flex;align-items:center;gap:15px;padding:16px 0;border-top:1px solid rgba(244,242,238,.16);color:rgba(244,242,238,.9);font-size:16px}
  .cm-row svg{width:19px;height:19px;color:#F4F2EE;flex:none;opacity:.7}
  .cm-row a:hover{color:#fff}

  form.quote{background:rgba(255,255,255,.04);border:1px solid rgba(244,242,238,.16);border-radius:calc(var(--radius) + 4px);padding:clamp(26px,3vw,40px)}
  .field{display:flex;flex-direction:column;gap:9px;margin-bottom:18px}
  .field label{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:rgba(244,242,238,.7);font-weight:600}
  .field input,.field select,.field textarea{background:rgba(14,14,13,.5);border:1px solid rgba(244,242,238,.22);border-radius:8px;color:#F4F2EE;font-family:inherit;font-size:16px;padding:14px 16px;width:100%;transition:border-color .2s}
  .field textarea{resize:vertical;min-height:116px}
  .field input::placeholder,.field textarea::placeholder{color:rgba(244,242,238,.4)}
  .field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#F4F2EE}
  .field select{appearance:none;color:#F4F2EE;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23c9c6bf' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
  .two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  form.quote .btn{width:100%;justify-content:center;margin-top:6px;background:#F4F2EE;color:var(--ink)}
  .form-note{margin-top:16px;font-size:13px;color:rgba(244,242,238,.5);text-align:center}
  @media(max-width:900px){.contact-grid{grid-template-columns:1fr}.two{grid-template-columns:1fr}}

  /* FOOTER */
  footer.site{background:var(--black);color:#F4F2EE;border-top:1px solid rgba(244,242,238,.14);padding-block:clamp(60px,7vw,90px)}
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:48px}
  .foot-brand .brand-logo{height:42px;filter:brightness(0) invert(1);margin-bottom:22px}
  .foot-brand p{color:rgba(244,242,238,.66);font-size:15px;max-width:40ch;line-height:1.65}
  .foot-col h2{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:rgba(244,242,238,.72);margin-bottom:18px;font-weight:600}
  .foot-col a,.foot-col p{display:block;color:rgba(244,242,238,.66);font-size:15px;padding:6px 0;transition:color .2s}
  .foot-col a:hover{color:#fff}
  .foot-bottom{max-width:var(--maxw);margin:clamp(48px,6vw,68px) auto 0;padding:26px var(--pad) 0;border-top:1px solid rgba(244,242,238,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:rgba(244,242,238,.64);font-size:13px}
  .foot-bottom a{text-decoration:underline;text-underline-offset:3px;color:#F4F2EE}
  @media(max-width:820px){.foot-grid{grid-template-columns:1fr;gap:36px}}

  /* Matilab seal */
  .seal-wrap{max-width:var(--maxw);margin:clamp(40px,5vw,56px) auto 0;padding:0 var(--pad);display:flex;justify-content:center}
  .matilab-seal{display:inline-flex;flex-direction:column;align-items:center;gap:11px;transition:transform .3s cubic-bezier(.16,1,.3,1)}
  .matilab-seal:hover{transform:translateY(-3px)}
  .seal-top{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:rgba(244,242,238,.5);font-weight:600}
  .seal-img{width:196px;max-width:62vw;height:auto;display:block;border-radius:12px}
  .matilab-seal:hover .seal-img{box-shadow:0 12px 34px rgba(0,0,0,.35)}

  /* WhatsApp flutuante */
  .wa-float{position:fixed;right:22px;bottom:22px;z-index:70;width:58px;height:58px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 28px rgba(0,0,0,.30);transition:transform .3s cubic-bezier(.16,1,.3,1)}
  .wa-float:hover{transform:scale(1.07)}
  .wa-float:active{transform:scale(.97)}
  .wa-float svg{width:32px;height:32px;fill:#fff;position:relative;z-index:1}
  .wa-float::after{content:"";position:absolute;inset:0;border-radius:50%;animation:waPulse 2.6s infinite}
  @keyframes waPulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.45)}70%{box-shadow:0 0 0 15px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}
  @media(max-width:520px){.wa-float{width:54px;height:54px;right:16px;bottom:16px}}
  @media(prefers-reduced-motion:reduce){.wa-float::after{animation:none}}

  /* Popup de saida */
  .exit-overlay{position:fixed;inset:0;z-index:80;background:rgba(14,14,13,.74);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:opacity .4s,visibility .4s}
  .exit-overlay.open{opacity:1;visibility:visible}
  .exit-modal{position:relative;background:#fff;color:var(--ink);max-width:470px;width:100%;border-radius:18px;padding:clamp(30px,5vw,48px);text-align:center;transform:translateY(18px) scale(.97);transition:transform .5s cubic-bezier(.16,1,.3,1)}
  .exit-overlay.open .exit-modal{transform:none}
  .exit-modal .exit-eyebrow{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:#9a9790;font-weight:600}
  .exit-modal h3{margin-top:16px;font-size:clamp(26px,4.4vw,34px);font-weight:700;letter-spacing:-.02em}
  .exit-modal h3 em{font-style:italic;font-weight:500}
  .exit-modal p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.6}
  .exit-actions{display:flex;flex-direction:column;gap:12px;margin-top:28px}
  .btn-wa{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#25D366;color:#fff;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:600;font-size:15px;padding:15px 24px;border-radius:var(--radius);transition:background .25s,transform .25s}
  .btn-wa:hover{background:#1FBE5A}
  .btn-wa:active{transform:translateY(1px)}
  .btn-wa svg{width:20px;height:20px;fill:#fff}
  .exit-dismiss{background:none;border:0;color:var(--muted);font-family:inherit;font-size:14px;cursor:pointer;padding:6px;text-decoration:underline;text-underline-offset:3px;transition:color .2s}
  .exit-dismiss:hover{color:var(--ink)}
  .exit-close{position:absolute;top:14px;right:16px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:none;border:0;color:#9a9790;cursor:pointer;transition:color .2s}
  .exit-close:hover{color:var(--ink)}
  .exit-close svg{width:20px;height:20px}

  /* Reveal */
  .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
  .reveal.in{opacity:1;transform:none}
  .reveal[data-d="1"]{transition-delay:.08s}
  .reveal[data-d="2"]{transition-delay:.16s}
  .reveal[data-d="3"]{transition-delay:.24s}
  @media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.btn,.method,.dim,.step{transition:none}}

  /* ===== Internal pages ===== */
  header.nav.solid{background:rgba(255,255,255,.92);backdrop-filter:blur(16px) saturate(120%);-webkit-backdrop-filter:blur(16px) saturate(120%);border-bottom-color:#E6E3DD}
  header.nav.solid .brand-logo{filter:none}
  header.nav.solid .nav-links a{color:#4A4844}
  header.nav.solid .nav-links a:hover{color:var(--ink)}
  header.nav.solid .nav .btn-primary,header.nav.solid .btn-primary{background:var(--ink);color:#fff}
  header.nav.solid .burger{color:var(--ink)}

  .page-hero{padding-top:calc(82px + clamp(40px,7vw,88px));padding-bottom:clamp(24px,4vw,44px)}
  .page-hero .eyebrow{margin-bottom:22px}
  .page-hero h1{font-size:clamp(40px,6vw,82px);font-weight:700;letter-spacing:-.035em}
  .page-hero p{margin-top:22px;color:var(--muted);font-size:18px;max-width:62ch;line-height:1.6}

  .proj-filter{margin-top:clamp(26px,4vw,40px);display:flex;flex-wrap:wrap;gap:10px 28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}
  .proj-filter button{background:none;border:0;cursor:pointer;font-family:inherit;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--muted);transition:color .2s}
  .proj-filter button.active{color:var(--ink);text-decoration:underline;text-underline-offset:5px}
  .proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(22px,3vw,38px);margin-top:clamp(36px,5vw,56px)}
  .proj-card .ph{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--panel);border-radius:var(--radius)}
  .proj-card img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.04);transition:transform .7s cubic-bezier(.16,1,.3,1),filter .5s}
  .proj-card:hover img{transform:scale(1.04);filter:grayscale(0)}
  .proj-card .cap{margin-top:14px;display:flex;justify-content:space-between;gap:14px;align-items:baseline}
  .proj-card h3{font-size:19px;font-weight:600}
  .proj-card .yr{font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;flex:none}
  .proj-card .cat{margin-top:3px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
  @media(max-width:900px){.proj-grid{grid-template-columns:1fr 1fr}}
  @media(max-width:560px){.proj-grid{grid-template-columns:1fr}}

  .pd-head{padding-top:calc(82px + clamp(28px,5vw,56px))}
  .pd-back{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
  .pd-back:hover{color:var(--ink)}
  .pd-top{margin-top:24px;display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(28px,5vw,64px);border-bottom:1px solid var(--line);padding-bottom:clamp(34px,5vw,54px)}
  .pd-top h1{font-size:clamp(34px,5vw,62px);font-weight:700;letter-spacing:-.03em}
  .pd-top .desc{margin-top:22px;color:var(--muted);font-size:17px;line-height:1.65;max-width:52ch}
  .pd-sheet .lbl{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:10px}
  .pd-sheet .row{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-top:1px solid var(--line)}
  .pd-sheet .row:first-of-type{border-top:0}
  .pd-sheet dt{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
  .pd-sheet dd{font-size:15px;text-align:right}
  .pd-gallery img{width:100%;height:auto;display:block;margin-top:clamp(12px,1.8vw,18px);border-radius:var(--radius);background:var(--panel)}
  .pd-nav{margin-top:clamp(44px,6vw,72px);border-top:1px solid var(--line);padding-top:28px;display:flex;justify-content:space-between;gap:20px}
  .pd-nav .lbl{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:600}
  .pd-nav h3{margin-top:6px;font-size:19px;font-weight:600}
  .pd-nav .nx{text-align:right;margin-left:auto}
  @media(max-width:820px){.pd-top{grid-template-columns:1fr;gap:30px}}