:root{
    --void:#0a0d12;
    --surface:#12161e;
    --surface-2:#171d28;
    --line:#232a36;
    --line-soft:#1a212c;
    --text:#e8ebf0;
    --text-muted:#8a93a3;
    --text-dim:#5b6472;
    --blue:#3d7bff;
    --blue-dim:#2c5cc4;
    --lilac:#b79ae0;
    --teal:#6fe0cb;
    --coral:#f16a5c;
    --radius:10px;
    --maxw:1180px;
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--void);
    color:var(--text);
    font-family:'Inter',sans-serif;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;font-weight:600;letter-spacing:-0.01em;color:var(--text);}
  .mono{font-family:'JetBrains Mono',monospace;}
  a{color:inherit;text-decoration:none;}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
  img{display:block;max-width:100%;}

  /* background grid texture */
  body::before{
    content:"";
    position:fixed;inset:0;
    background-image:
      linear-gradient(var(--line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(ellipse 70% 50% at 50% 0%, black 20%, transparent 75%);
    -webkit-mask-image:radial-gradient(ellipse 70% 50% at 50% 0%, black 20%, transparent 75%);
    pointer-events:none;
    z-index:0;
    opacity:0.5;
  }

  /* ---------- NAV ---------- */
  header{
    position:sticky;top:0;z-index:100;
    background:rgba(10,13,18,0.82);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  nav{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 32px;max-width:var(--maxw);margin:0 auto;
  }
  .brand{display:flex;align-items:center;gap:12px;}
  .brand img{width:42px;height:42px;border-radius:50%;}
  .brand-name{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:17px;letter-spacing:0.01em;display:flex;align-items:center;gap:8px;}
  .brand-name sup{font-size:10px;top:-0.6em;}
  .brand-badge{font-family:'JetBrains Mono',monospace;font-size:9.5px;font-weight:500;color:var(--blue);border:1px solid rgba(61,123,255,0.35);background:rgba(61,123,255,0.08);padding:2px 7px;border-radius:20px;letter-spacing:0.03em;}
  .brand-tag{font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--text-dim);letter-spacing:0.08em;display:block;margin-top:-2px;}
  .nav-links{display:flex;gap:36px;font-size:14px;color:var(--text-muted);}
  .nav-links a{transition:color .2s;position:relative;}
  .nav-links a:hover{color:var(--text);}
  .nav-cta{
    font-size:13px;font-family:'JetBrains Mono',monospace;
    border:1px solid var(--line);padding:9px 18px;border-radius:6px;
    transition:border-color .2s, background .2s;
    white-space:nowrap;
  }
  .nav-cta:hover{border-color:var(--blue);background:rgba(61,123,255,0.08);}
  .nav-mobile-toggle{display:none;}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;z-index:1;
    padding:110px 32px 90px;
    max-width:var(--maxw);margin:0 auto;
    display:grid;grid-template-columns:1.05fr 0.95fr;gap:40px;align-items:center;
  }
  .eyebrow{
    font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--blue);
    letter-spacing:0.12em;display:flex;align-items:center;gap:10px;margin-bottom:22px;
  }
  .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(61,123,255,0.15);}
  .hero h1{
    font-size:clamp(34px,4.4vw,54px);
    line-height:1.08;
    margin-bottom:22px;
  }
  .hero h1 .accent{color:var(--blue);}
  .hero p.lead{
    font-size:17px;color:var(--text-muted);max-width:480px;margin-bottom:34px;
  }
  .hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:46px;}
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 24px;border-radius:6px;font-size:14px;font-weight:500;
    transition:transform .15s, background .2s, border-color .2s;
    cursor:pointer;border:1px solid transparent;
  }
  .btn-primary{background:var(--blue);color:#fff;}
  .btn-primary:hover{background:#5c8fff;transform:translateY(-1px);}
  .btn-ghost{border:1px solid var(--line);color:var(--text);}
  .btn-ghost:hover{border-color:var(--text-dim);background:var(--surface);}

  .hero-stats{display:flex;gap:36px;padding-top:28px;border-top:1px solid var(--line);}
  .hero-stat .num{font-family:'JetBrains Mono',monospace;font-size:22px;color:var(--text);}
  .hero-stat .num .u{color:var(--blue);}
  .hero-stat .label{font-size:12px;color:var(--text-dim);margin-top:2px;}

  /* network topology visual */
  .topo{
    position:relative;
    aspect-ratio:1/1;
    display:flex;align-items:center;justify-content:center;
  }
  .topo svg{width:100%;height:100%;overflow:visible;}
  .topo-link{stroke:var(--line);stroke-width:1;}
  .topo-link.live{stroke:var(--blue);stroke-opacity:0.45;}
  .topo-node{filter:drop-shadow(0 0 8px currentColor);}
  .node-blue{color:var(--blue);}
  .node-lilac{color:var(--lilac);}
  .node-teal{color:var(--teal);}
  .node-coral{color:var(--coral);}
  .node-bluedim{color:var(--blue-dim);}
  .about-heading{font-size:28px;margin-bottom:20px;}
  .pulse{animation:pulse 3.2s ease-in-out infinite;}
  .pulse2{animation:pulse 3.2s ease-in-out infinite 0.9s;}
  .pulse3{animation:pulse 3.2s ease-in-out infinite 1.8s;}
  @keyframes pulse{
    0%,100%{opacity:.55;r:4;}
    50%{opacity:1;r:6;}
  }
  .dash{stroke-dasharray:4 5;animation:dashmove 6s linear infinite;}
  @keyframes dashmove{to{stroke-dashoffset:-90;}}
  .topo-label{font-family:'JetBrains Mono',monospace;font-size:9px;fill:#5b6472;letter-spacing:0.05em;}

  /* ---------- SECTION shared ---------- */
  section{position:relative;z-index:1;padding:96px 0;}
  .section-head{max-width:620px;margin-bottom:56px;}
  .section-head .eyebrow{margin-bottom:14px;}
  .section-head h2{font-size:clamp(26px,3vw,36px);margin-bottom:14px;}
  .section-head p{color:var(--text-muted);font-size:15.5px;}
  .divider{border:none;border-top:1px solid var(--line);}

  .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease;}
  .reveal.in{opacity:1;transform:translateY(0);}

  /* ---------- SERVICES ---------- */
  .services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
  .service-card{background:var(--surface);padding:32px 26px;transition:background .25s;}
  .service-card:hover{background:var(--surface-2);}
  .service-icon{width:38px;height:38px;margin-bottom:22px;color:var(--blue);}
  .service-card h3{font-size:17px;margin-bottom:10px;}
  .service-card p{font-size:13.8px;color:var(--text-muted);}
  .service-tag{font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--text-dim);letter-spacing:0.06em;margin-top:16px;display:block;}

  /* ---------- PROCESS ---------- */
  .process{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
  .process::before{
    content:"";position:absolute;top:19px;left:6%;right:6%;height:1px;background:var(--line);z-index:0;
  }
  .proc-step{position:relative;z-index:1;}
  .proc-num{
    font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--void);
    width:38px;height:38px;border-radius:50%;background:var(--blue);
    display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-weight:500;
  }
  .proc-step h3{font-size:15.5px;margin-bottom:8px;}
  .proc-step p{font-size:13.5px;color:var(--text-muted);}

  /* ---------- ABOUT ---------- */
  .about{display:grid;grid-template-columns:0.85fr 1.15fr;gap:64px;align-items:start;}
  .about-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;
  }
  .about-photo{width:100%;aspect-ratio:4/5;object-fit:cover;display:block;filter:grayscale(15%);border-bottom:1px solid var(--line);}
  .about-card-body{padding:28px 32px 32px;}
  .about-card .role{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--blue);letter-spacing:0.06em;margin-bottom:6px;}
  .about-card h3{font-size:20px;margin-bottom:18px;}
  .about-diffs{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
  .about-years{font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--blue);letter-spacing:0.02em;margin-bottom:4px;}
  .about-certs-wrap{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);}
  .about-certs-label{font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--text-dim);letter-spacing:0.08em;display:block;margin-bottom:10px;}
  .cert-badge{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--text-muted);border:1px solid var(--line);padding:5px 10px;border-radius:5px;margin:0 6px 6px 0;letter-spacing:0.01em;}
  .about-diff{display:flex;gap:12px;align-items:flex-start;}
  .about-diff .dot{width:6px;height:6px;border-radius:50%;background:var(--blue);margin-top:7px;flex-shrink:0;}
  .about-diff .txt{font-size:13px;color:var(--text-muted);line-height:1.5;}
  .about-diff .txt strong{color:var(--text);font-weight:500;}
  .about-body p{color:var(--text-muted);font-size:15.5px;margin-bottom:18px;}
  .about-body p:last-child{margin-bottom:26px;}
  .about-body strong{color:var(--text);font-weight:500;}

  /* ---------- CONTACT ---------- */
  .contact-panel{
    display:grid;grid-template-columns:0.9fr 1.1fr;
    border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
    background:var(--surface);
  }
  .contact-info{padding:44px;border-right:1px solid var(--line);}
  .contact-info h2{font-size:26px;margin-bottom:14px;}
  .contact-info p{color:var(--text-muted);font-size:14.5px;margin-bottom:30px;}
  .contact-row{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px;}
  .contact-row .k{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--text-dim);letter-spacing:0.06em;min-width:80px;padding-top:2px;}
  .contact-row .v{font-size:14.5px;color:var(--text);}
  .contact-form{padding:44px;display:flex;flex-direction:column;gap:16px;}
  .field label{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--text-dim);letter-spacing:0.06em;display:block;margin-bottom:8px;}
  .field input,.field textarea{
    width:100%;background:var(--void);border:1px solid var(--line);border-radius:6px;
    padding:11px 13px;color:var(--text);font-family:'Inter',sans-serif;font-size:14px;
    transition:border-color .2s;
  }
  .field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);}
  .field textarea{resize:vertical;min-height:88px;}
  .contact-form .btn-primary{margin-top:6px;justify-content:center;border:none;cursor:pointer;font-family:'Inter',sans-serif;}
  .contact-form .btn-primary:disabled{opacity:0.6;cursor:not-allowed;}
  .hp{position:absolute;left:-9999px;top:-9999px;}
  .form-status{font-size:13px;margin-top:4px;min-height:16px;}
  .form-status.success{color:var(--teal);}
  .form-status.error{color:var(--coral);}
  .form-note{font-size:11.5px;color:var(--text-dim);line-height:1.5;}
  .inline-link{color:var(--blue);}
  .inline-link:hover{text-decoration:underline;}

  /* CTA banner */
  .cta-banner{padding:64px 0;text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(180deg, rgba(61,123,255,0.05), transparent);}
  .cta-banner .eyebrow-center{justify-content:center;}
  .cta-banner h3{font-size:clamp(20px,2.4vw,26px);max-width:640px;margin:14px auto 26px;line-height:1.35;}

  /* FAQ */
  .faq-list{max-width:760px;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{padding:18px 4px;cursor:pointer;font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:15.5px;color:var(--text);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;}
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{content:'+';font-family:'JetBrains Mono',monospace;color:var(--blue);font-size:20px;flex-shrink:0;}
  .faq-item[open] summary::after{content:'\2212';}
  .faq-item p{padding:0 4px 18px;color:var(--text-muted);font-size:14.5px;max-width:680px;}

  /* WhatsApp floating button */
  .whatsapp-float{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,0,0,0.4);z-index:200;transition:transform .2s;}
  .whatsapp-float:hover{transform:scale(1.07);}
  .whatsapp-float svg{width:28px;height:28px;}

  /* Legal pages (Política de Privacidade) */
  .brand-link{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit;}
  .legal{max-width:760px;margin:0 auto;padding:120px 32px 100px;}
  .legal h1{font-size:clamp(28px,3.4vw,38px);margin-bottom:8px;}
  .legal .updated{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--text-dim);margin-bottom:48px;display:block;}
  .legal h2{font-size:19px;margin:40px 0 14px;}
  .legal p{color:var(--text-muted);font-size:15px;margin-bottom:14px;}
  .legal ul{color:var(--text-muted);font-size:15px;margin:0 0 14px 20px;}
  .legal li{margin-bottom:8px;}
  .legal a{color:var(--blue);}
  .back-link{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--text-muted);display:inline-block;margin-bottom:8px;}
  .back-link:hover{color:var(--text);}

  /* ---------- FOOTER ---------- */
  footer{border-top:1px solid var(--line);padding:36px 0;position:relative;z-index:1;}
  .footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}
  .footer-brand{display:flex;align-items:center;gap:10px;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--text-dim);}
  .footer-brand img{width:20px;height:20px;border-radius:50%;}
  .footer-links{display:flex;gap:22px;font-size:13px;color:var(--text-dim);}
  .footer-links a:hover{color:var(--text-muted);}
  .footer-social{display:flex;gap:14px;align-items:center;}
  .footer-social a{color:var(--text-dim);display:flex;transition:color .2s;}
  .footer-social a:hover{color:var(--text);}
  .footer-social svg{width:18px;height:18px;}
  .about-linkedin{display:inline-flex;align-items:center;gap:6px;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--blue);margin:6px 0 14px;}
  .about-linkedin svg{width:15px;height:15px;}
  .about-linkedin:hover{text-decoration:underline;}

  :focus-visible{outline:2px solid var(--blue);outline-offset:2px;}

  @media (max-width:900px){
    .nav-links{display:none;}
    .hero{grid-template-columns:1fr;padding-top:70px;}
    .topo{max-width:340px;margin:0 auto;order:-1;margin-bottom:20px;}
    .services-grid{grid-template-columns:repeat(2,1fr);}
    .process{grid-template-columns:repeat(2,1fr);row-gap:36px;}
    .process::before{display:none;}
    .about{grid-template-columns:1fr;gap:36px;}
    .contact-panel{grid-template-columns:1fr;}
    .contact-info{border-right:none;border-bottom:1px solid var(--line);}
    .hero-stats{flex-wrap:wrap;row-gap:18px;}
  }
  @media (max-width:520px){
    .services-grid{grid-template-columns:1fr;}
    .process{grid-template-columns:1fr;}
    .wrap,.hero,nav{padding-left:20px;padding-right:20px;}
    .brand-badge{display:none;}
    .whatsapp-float{width:50px;height:50px;bottom:16px;right:16px;}
    .whatsapp-float svg{width:24px;height:24px;}
  }
  @media (prefers-reduced-motion:reduce){
    .pulse,.pulse2,.pulse3,.dash{animation:none;}
    .reveal{transition:none;opacity:1;transform:none;}
  }