:root{
    --bg:#000000;
    --bg-alt:#0a0b0e;
    --bg-card:#101216;
    --fg:#ffffff;
    --fg-muted:#98a4ae;
    --fg-faint:#6f7a84;
    --accent:#1270ff;
    --accent-soft:rgba(18,112,255,.14);
    --accent-strong:#4f92ff;
    --border:rgba(255,255,255,.14);
    --border-soft:rgba(255,255,255,.08);
    --max:1120px;
    --space-1:8px;
    --space-2:16px;
    --space-3:24px;
    --space-4:40px;
    --space-5:64px;
    --space-6:96px;
    --cut-lg:22px;
    --cut-sm:12px;
    font-size:16px;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  }
  body{
    background:
      linear-gradient(rgba(18,112,255,.06) 1px, transparent 1px) 0 0/56px 56px,
      linear-gradient(90deg, rgba(18,112,255,.06) 1px, transparent 1px) 0 0/56px 56px,
      var(--bg);
    color:var(--fg);
    font-family:'Sora',system-ui,-apple-system,sans-serif;
    line-height:1.6;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
  }
  img,svg{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;}
  h1,h2,h3,h4{
    font-family:'Sora',system-ui,sans-serif;
    font-weight:700;
    line-height:1.2;
    letter-spacing:-0.01em;
  }
  .container{
    width:100%;
    max-width:var(--max);
    margin:0 auto;
    padding:0 var(--space-3);
  }
  section{padding:var(--space-6) 0;}
  @media (max-width:768px){
    section{padding:var(--space-5) 0;}
    .container{padding:0 var(--space-2);}
  }

  /* focus visibility */
  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
    outline:2px solid var(--accent-strong);
    outline-offset:3px;
    border-radius:4px;
  }

  /* ---------- Chamfer / cut-corner brand motif ---------- */
  .chamfer-lg{clip-path:polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, var(--cut-lg) 100%, 0 calc(100% - var(--cut-lg)));}
  .chamfer-sm{clip-path:polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, var(--cut-sm) 100%, 0 calc(100% - var(--cut-sm)));}

  /* ---------- Header ---------- */
  header{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(0,0,0,.86);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border-soft);
  }
  .nav-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:16px 0;
  }
  .logo-img{height:30px;width:auto;}
  .nav-links{
    display:flex;
    gap:var(--space-4);
    align-items:center;
  }
  .nav-links a{
    font-size:.92rem;
    color:var(--fg-muted);
    transition:color .2s ease;
  }
  .nav-links a:hover{color:var(--fg);}
  .nav-cta{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:var(--accent);
    color:#ffffff;
    font-weight:600;
    font-size:.88rem;
    padding:11px 20px;
    transition:background .2s ease, transform .2s ease;
    white-space:nowrap;
  }
  .nav-cta:hover{background:var(--accent-strong);transform:translateY(-1px);}
  .nav-toggle{
    display:none;
    background:none;
    border:1px solid var(--border);
    width:44px;height:44px;
    align-items:center;
    justify-content:center;
    color:var(--fg);
    cursor:pointer;
  }
  @media (max-width:860px){
    .nav-links-desktop{display:none;}
    .nav-toggle{display:flex;}
  }
  .mobile-menu{
    display:none;
    flex-direction:column;
    gap:var(--space-2);
    padding:var(--space-2) 0 var(--space-3);
    border-top:1px solid var(--border-soft);
  }
  .mobile-menu.open{display:flex;}
  .mobile-menu a{color:var(--fg-muted);padding:12px 0;font-size:.98rem;}
  .mobile-menu a:hover{color:var(--fg);}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    font-family:'Sora',sans-serif;
    font-weight:600;
    font-size:1rem;
    padding:16px 32px;
    cursor:pointer;
    border:none;
    transition:background .2s ease, transform .2s ease, box-shadow .2s ease;
    min-height:44px;
  }
  .btn-primary{
    background:var(--accent);
    color:#ffffff;
  }
  .btn-primary:hover{background:var(--accent-strong);transform:translateY(-2px);box-shadow:0 12px 30px -12px rgba(18,112,255,.55);}
  .btn-ghost{
    background:transparent;
    color:var(--fg);
    border:1px solid var(--border);
  }
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent-strong);}

  /* ---------- Hero ---------- */
  .hero{
    padding-top:var(--space-6);
    padding-bottom:var(--space-6);
    position:relative;
    overflow:hidden;
  }
  .hero::before{
    content:"";
    position:absolute;
    top:-20%;
    right:-10%;
    width:600px;height:600px;
    background:radial-gradient(circle, rgba(18,112,255,.20), transparent 70%);
    pointer-events:none;
  }
  .hero::after{
    content:"";
    position:absolute;
    top:0;left:-40%;
    width:40%;height:1px;
    background:linear-gradient(90deg, transparent, var(--accent-strong), transparent);
    opacity:.7;
    animation:scanline 7s linear infinite;
    pointer-events:none;
  }
  @keyframes scanline{
    0%{left:-40%;}
    100%{left:100%;}
  }
  .hero-inner{
    max-width:780px;
    position:relative;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:var(--accent-strong);
    font-size:.82rem;
    font-weight:600;
    letter-spacing:.1em;
    text-transform:uppercase;
    margin-bottom:var(--space-3);
  }
  .eyebrow::before{
    content:"";
    width:7px;height:7px;
    flex-shrink:0;
    background:var(--accent);
    box-shadow:0 0 0 3px var(--accent-soft);
    animation:pulseDot 2.2s ease-in-out infinite;
  }
  @keyframes pulseDot{
    0%,100%{opacity:1;box-shadow:0 0 0 3px var(--accent-soft);}
    50%{opacity:.5;box-shadow:0 0 0 6px transparent;}
  }
  .hl{
    color:var(--accent-strong);
    position:relative;
    white-space:nowrap;
  }
  .hl::after{
    content:"";
    position:absolute;
    left:0;right:0;
    bottom:2px;
    height:3px;
    background:linear-gradient(90deg, var(--accent), transparent);
    animation:hlPulse 2.4s ease-in-out infinite;
  }
  @keyframes hlPulse{
    0%,100%{opacity:.5;transform:scaleX(.85);transform-origin:left;}
    50%{opacity:1;transform:scaleX(1);transform-origin:left;}
  }
  .hero h1{
    font-size:clamp(2.1rem, 4.6vw, 3.4rem);
    color:var(--fg);
    margin-bottom:var(--space-3);
  }
  .hero p.lead{
    font-size:clamp(1.05rem, 1.6vw, 1.25rem);
    color:var(--fg-muted);
    max-width:640px;
    margin-bottom:var(--space-4);
    font-weight:300;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:var(--space-2);
    align-items:center;
  }
  /* ---------- Section headings ---------- */
  .section-head{
    max-width:640px;
    margin-bottom:var(--space-5);
  }
  .section-head .eyebrow{margin-bottom:var(--space-2);}
  .section-head h2{
    font-size:clamp(1.7rem, 3vw, 2.3rem);
    color:var(--fg);
  }
  .section-head p{
    color:var(--fg-muted);
    margin-top:var(--space-2);
    font-size:1.05rem;
  }
  .section-alt{background:var(--bg-alt);}

  /* ---------- Problema ---------- */
  .problema-grid{
    display:grid;
    gap:var(--space-4);
  }
  .problema-lede{
    font-family:'Sora',sans-serif;
    font-size:clamp(1.25rem, 2.2vw, 1.6rem);
    font-weight:500;
    color:var(--fg);
    line-height:1.45;
    max-width:820px;
    border-left:2px solid var(--accent);
    padding-left:var(--space-3);
  }
  .problema-body{
    max-width:760px;
    color:var(--fg-muted);
    font-size:1.05rem;
  }

  /* ---------- Metodologia ---------- */
  .pilares{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:var(--space-3);
  }
  @media (max-width:900px){
    .pilares{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:520px){
    .pilares{grid-template-columns:1fr;}
  }
  .pilar{
    background:var(--bg-card);
    border:1px solid var(--border-soft);
    padding:var(--space-3);
    transition:border-color .25s ease, transform .25s ease;
  }
  .pilar:hover{border-color:var(--accent);transform:translateY(-4px);}
  .pilar-num{
    font-family:'Sora',sans-serif;
    font-weight:700;
    font-size:1.6rem;
    color:var(--accent);
    margin-bottom:var(--space-2);
    font-variant-numeric:tabular-nums;
    letter-spacing:.03em;
  }
  .pilar h3{
    font-size:1.12rem;
    color:var(--fg);
    margin-bottom:8px;
    font-family:'Sora',sans-serif;
    font-weight:600;
  }
  .pilar p{color:var(--fg-muted);font-size:.94rem;}

  /* ---------- Capacidades ---------- */
  .capacidades{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:var(--space-3);
  }
  @media (max-width:900px){
    .capacidades{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:600px){
    .capacidades{grid-template-columns:1fr;}
  }
  .capacidade{
    padding:var(--space-3);
    background:transparent;
    border:1px solid var(--border-soft);
    transition:border-color .25s ease, background .25s ease;
  }
  .capacidade:hover{border-color:var(--accent);background:var(--accent-soft);}
  .capacidade svg{color:var(--accent);width:26px;height:26px;margin-bottom:var(--space-2);}
  .capacidade h3{
    font-family:'Sora',sans-serif;
    font-weight:600;
    font-size:1.05rem;
    color:var(--fg);
    margin-bottom:8px;
  }
  .capacidade p{color:var(--fg-muted);font-size:.93rem;}

  /* ---------- Cases ---------- */
  .cases-transition{
    max-width:780px;
    color:var(--fg-muted);
    font-size:1.02rem;
    margin-top:var(--space-5);
    padding-top:var(--space-4);
    border-top:1px solid var(--border-soft);
  }
  .cases-transition strong{color:var(--fg);}
  .case-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:var(--space-3);
  }
  @media (max-width:960px){
    .case-grid{grid-template-columns:1fr;}
  }
  .case-card{
    background:var(--bg-card);
    border:1px solid var(--border-soft);
    padding:var(--space-3);
    display:flex;
    flex-direction:column;
    gap:var(--space-2);
  }
  .case-tag{
    display:inline-flex;
    align-self:flex-start;
    font-size:.72rem;
    font-weight:700;
    letter-spacing:.08em;
    text-transform:uppercase;
    color:#ffffff;
    background:var(--accent);
    padding:5px 12px;
  }
  .case-result{
    font-family:'Sora',sans-serif;
    font-weight:700;
    font-size:2.1rem;
    color:var(--fg);
    line-height:1;
    font-variant-numeric:tabular-nums;
  }
  .case-result span{font-size:.95rem;font-family:'Sora',sans-serif;color:var(--fg-muted);font-weight:400;display:block;margin-top:6px;}
  .case-field{font-size:.9rem;color:var(--fg-muted);}
  .case-field b{color:var(--fg);font-weight:600;display:block;margin-bottom:2px;font-size:.82rem;text-transform:uppercase;letter-spacing:.03em;}
  .case-quote{
    margin-top:auto;
    padding-top:var(--space-2);
    border-top:1px solid var(--border-soft);
    font-style:italic;
    color:var(--fg-muted);
    font-size:.92rem;
  }

  /* ---------- CTA / Form ---------- */
  .cta-section{
    background:linear-gradient(180deg, var(--bg-alt), var(--bg));
    border-top:1px solid var(--border-soft);
    border-bottom:1px solid var(--border-soft);
  }
  .cta-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:var(--space-5);
    align-items:start;
  }
  @media (max-width:900px){
    .cta-grid{grid-template-columns:1fr;gap:var(--space-4);}
  }
  .cta-copy h2{font-size:clamp(1.6rem,3vw,2.1rem);color:var(--fg);margin-bottom:var(--space-2);}
  .cta-copy p{color:var(--fg-muted);font-size:1.02rem;margin-bottom:var(--space-2);}
  .cta-badges{display:flex;flex-direction:column;gap:10px;margin-top:var(--space-3);}
  .cta-badge{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:var(--fg-muted);}
  .cta-badge svg{width:18px;height:18px;flex-shrink:0;color:var(--accent);margin-top:2px;}

  form{
    background:var(--bg-card);
    border:1px solid var(--border-soft);
    padding:var(--space-4);
    display:flex;
    flex-direction:column;
    gap:var(--space-2);
  }
  .field{display:flex;flex-direction:column;gap:6px;}
  .field label{font-size:.85rem;color:var(--fg-muted);font-weight:500;}
  .field input,.field select{
    background:var(--bg);
    border:1px solid var(--border);
    color:var(--fg);
    padding:13px 14px;
    font-size:.98rem;
    font-family:'Sora',sans-serif;
    min-height:44px;
    transition:border-color .2s ease;
  }
  .field input::placeholder{color:var(--fg-faint);}
  .field input:focus,.field select:focus{border-color:var(--accent);}
  .field-error{font-size:.8rem;color:#ff8a7a;display:none;}
  .field.invalid input,.field.invalid select{border-color:#ff8a7a;}
  .field.invalid .field-error{display:block;}
  form .btn-primary{margin-top:8px;width:100%;}
  .form-note{font-size:.78rem;color:var(--fg-faint);text-align:center;margin-top:4px;}
  .form-success{
    display:none;
    background:var(--accent-soft);
    border:1px solid var(--accent);
    color:var(--fg);
    padding:var(--space-2);
    font-size:.92rem;
  }
  .form-success.show{display:block;}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:820px;}
  .faq-item{
    border-bottom:1px solid var(--border-soft);
  }
  .faq-q{
    width:100%;
    background:none;
    border:none;
    color:var(--fg);
    text-align:left;
    padding:var(--space-3) 0;
    font-family:'Sora',sans-serif;
    font-size:1.02rem;
    font-weight:600;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:var(--space-2);
    cursor:pointer;
  }
  .faq-q svg{
    flex-shrink:0;
    width:20px;height:20px;
    color:var(--accent);
    transition:transform .25s ease;
  }
  .faq-item.open .faq-q svg{transform:rotate(45deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .3s ease;
    color:var(--fg-muted);
    font-size:.97rem;
  }
  .faq-a-inner{padding-bottom:var(--space-3);max-width:700px;}

  /* ---------- Footer ---------- */
  footer{
    padding:var(--space-4) 0;
    border-top:1px solid var(--border-soft);
  }
  .footer-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:var(--space-3);
  }
  .footer-logo-img{height:52px;width:auto;}
  .footer-links{display:flex;gap:var(--space-3);flex-wrap:wrap;}
  .footer-links a{color:var(--fg-muted);font-size:.88rem;transition:color .2s ease;}
  .footer-links a:hover{color:var(--fg);}
  .footer-copy{color:var(--fg-faint);font-size:.8rem;margin-top:var(--space-3);}

  /* ---------- Reveal on scroll ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease;}
  .reveal.in{opacity:1;transform:none;}

  /* ---------- WhatsApp floating button (mobile-friendly persistent CTA) ---------- */
  .wa-float{
    position:fixed;
    bottom:20px;
    right:20px;
    z-index:90;
    width:56px;height:56px;
    border-radius:50%;
    background:var(--accent);
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 10px 30px -8px rgba(0,0,0,.6);
    transition:transform .2s ease;
  }
  .wa-float:hover{transform:scale(1.06);}
  .wa-float svg{width:26px;height:26px;color:#ffffff;}