:root{
    --blue-deep:#0B4F8A;
    --blue-mid:#1373B5;
    --blue-aqua:#2FA8D9;
    --blue-ice:#EAF4FA;
    --blue-ice-2:#F5FAFD;
    --ink:#10161A;
    --ink-soft:#3B454C;
    --white:#FFFFFF;
    --line:#DCE7EE;
    --max:1180px;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:'Inter',sans-serif;
    color:var(--ink);
    background:var(--white);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;font-weight:600;letter-spacing:-0.01em;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  .wrap{max-width:var(--max);margin:0 auto;padding:0 32px;}
  .mono{font-family:'IBM Plex Mono',monospace;}
  section{position:relative;}
  ::selection{background:var(--blue-aqua);color:#fff;}

  /* focus visibility */
  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
    outline:2px solid var(--blue-aqua); outline-offset:3px;
  }

  /* ---------- HEADER ---------- */
  header{
    position:fixed; top:0; left:0; right:0; z-index:1000;
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 32px;
    background:rgba(255,255,255,0.0);
    transition:background .35s ease, box-shadow .35s ease, padding .35s ease;
  }
  header.scrolled{
    background:rgba(255,255,255,0.92);
    backdrop-filter:blur(10px);
    box-shadow:0 1px 0 var(--line);
    padding:10px 32px;
  }
  header.menu-open{backdrop-filter:none;}
  .brand{display:flex; align-items:center; gap:10px;}
  .brand img{height:46px; width:auto; transition:height .3s ease;}
  header.scrolled .brand img{height:38px;}
  .brand-name{
    font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:1.05rem;
    color:var(--white); letter-spacing:.02em; transition:color .35s ease;
  }
  header.scrolled .brand-name{color:var(--blue-deep);}

  nav{display:flex; gap:2px; align-items:center;}
  nav a{
    font-size:.88rem; font-weight:500; color:var(--white);
    padding:10px 16px; border-radius:100px; position:relative;
    transition:color .3s ease, background .3s ease;
  }
  header.scrolled nav a{color:var(--ink-soft);}
  nav a:hover{background:rgba(255,255,255,0.14);}
  header.scrolled nav a:hover{background:var(--blue-ice); color:var(--blue-deep);}

  .nav-banner{display:none;}

  .nav-toggle{display:none; background:none; border:none; cursor:pointer; padding:8px; z-index:1100;}
  .nav-toggle span{display:block; width:24px; height:2px; background:var(--white); margin:5px 0; transition:.3s;}
  header.scrolled .nav-toggle span{background:var(--blue-deep);}
  header.menu-open .nav-toggle span{background:var(--blue-deep);}

  /* ---------- HOME / HERO ---------- */
  #home{
    height:100vh; min-height:560px; width:100%;
    position:relative; overflow:hidden;
    display:flex; align-items:flex-end;
    background:var(--ink);
  }
  #home video{
    position:absolute; top:50%; left:50%; min-width:100%; min-height:100%;
    width:auto; height:auto; transform:translate(-50%,-50%);
    object-fit:cover;
  }
  .hero-veil{
    position:absolute; inset:0;
    background:linear-gradient(180deg, rgba(11,32,48,0.35) 0%, rgba(9,22,35,0.15) 35%, rgba(6,14,22,0.85) 100%);
  }
  .hero-content{
    position:relative; z-index:2; width:100%;
    padding:0 32px 88px; color:var(--white);
  }
  .hero-inner{max-width:var(--max); margin:0 auto;}
  .eyebrow{
    display:inline-flex; align-items:center; gap:10px;
    font-family:'IBM Plex Mono',monospace; font-size:.75rem; letter-spacing:.14em;
    text-transform:uppercase; color:var(--blue-aqua); margin-bottom:18px;
  }
  .eyebrow::before{content:""; width:26px; height:1px; background:var(--blue-aqua);}
  .hero-content h1{
    font-size:clamp(2.6rem, 6vw, 5rem); line-height:1.02; font-weight:700;
    max-width:820px; margin-bottom:20px;
  }
  .hero-content p{
    font-size:1.1rem; max-width:480px; color:rgba(255,255,255,0.82); line-height:1.55; margin-bottom:34px;
  }
  .btn-row{display:flex; gap:14px; flex-wrap:wrap;}
  .btn{
    display:inline-flex; align-items:center; gap:8px;
    padding:15px 28px; border-radius:100px; font-weight:600; font-size:.92rem;
    transition:transform .25s ease, box-shadow .25s ease, background .25s ease;
    border:1px solid transparent; cursor:pointer;
  }
  .btn-primary{background:var(--blue-aqua); color:#04202E;}
  .btn-primary:hover{transform:translateY(-2px); box-shadow:0 10px 24px rgba(47,168,217,.35);}
  .btn-ghost{background:transparent; color:var(--white); border-color:rgba(255,255,255,.4);}
  .btn-ghost:hover{background:rgba(255,255,255,.1); transform:translateY(-2px);}

  .scroll-cue{
    position:absolute; right:32px; bottom:36px; z-index:2;
    display:flex; flex-direction:column; align-items:center; gap:10px;
    color:rgba(255,255,255,.75); font-family:'IBM Plex Mono',monospace; font-size:.7rem; letter-spacing:.12em;
  }
  .scroll-cue .line{width:1px; height:46px; background:linear-gradient(rgba(255,255,255,.9), transparent); animation:pulse-down 2s infinite;}
  @keyframes pulse-down{0%{opacity:.2;} 50%{opacity:1;} 100%{opacity:.2;}}

  /* ---------- SECTION HEADERS ---------- */
  .section-pad{padding:120px 0;}
  .section-head{max-width:640px; margin-bottom:64px;}
  .section-head .eyebrow{
    color:var(--blue-mid); font-size:1.05rem; font-weight:700; letter-spacing:.07em;
    margin-bottom:14px;
  }
  .section-head .eyebrow::before{content:none;}
  .section-head h2{font-size:clamp(1.9rem, 3.4vw, 2.7rem); color:var(--ink);}
  .section-head p{margin-top:16px; color:var(--ink-soft); font-size:1.05rem; line-height:1.6;}

  /* ---------- SOBRE ---------- */
  #sobre{background:var(--white);}
  .sobre-grid{
    display:grid; grid-template-columns:1.05fr .95fr; gap:72px; align-items:center;
  }
  .sobre-text p{color:var(--ink-soft); font-size:1.06rem; line-height:1.75; margin-bottom:18px;}
  .sobre-text p strong{color:var(--ink); font-weight:600;}
  .sobre-text .eyebrow{
    color:var(--blue-mid); font-size:1.05rem; font-weight:700; letter-spacing:.07em;
    margin-bottom:14px;
  }
  .sobre-text .eyebrow::before{content:none;}
  .stat-row{display:grid; grid-template-columns:repeat(4,1fr); gap:0; margin-top:44px; border-top:1px solid var(--line);}
  .stat{padding:22px 18px 0 0; border-right:1px solid var(--line);}
  .stat:last-child{border-right:none;}
  .stat b{
    display:block; font-family:'Space Grotesk',sans-serif; font-size:1.7rem; color:var(--blue-deep);
  }
  .stat span{display:block; font-size:.78rem; color:var(--ink-soft); margin-top:6px; line-height:1.3;}

  /* altitude gauge — signature element */
  .altitude-wrap{position:relative; height:520px; border-radius:22px; overflow:hidden; background:var(--ink);}
  .altitude-wrap img{width:100%; height:100%; object-fit:cover; opacity:.92;}
  .altitude-overlay{
    position:absolute; inset:0; pointer-events:none;
    background:
      linear-gradient(100deg, rgba(10,16,20,0) 48%, rgba(10,16,20,.62) 82%, rgba(10,16,20,.72) 100%),
      linear-gradient(0deg, rgba(10,16,20,.65) 0%, rgba(10,16,20,0) 32%),
      linear-gradient(180deg, rgba(10,16,20,.35) 0%, rgba(10,16,20,0) 22%);
  }
  .altitude-gauge{
    position:absolute; top:24px; bottom:24px; right:24px; width:64px;
    display:flex; flex-direction:column; align-items:center; justify-content:space-between;
  }
  .altitude-gauge .cap{
    font-family:'IBM Plex Mono',monospace; font-size:.62rem; color:rgba(255,255,255,.75); text-align:center; letter-spacing:.06em;
  }
  .altitude-gauge .track{position:relative; flex:1; width:1px; background:rgba(255,255,255,.3); margin:14px 0;}
  .altitude-gauge .marker{
    position:absolute; left:50%; transform:translate(-50%,-50%); 
    width:9px; height:9px; border-radius:50%; background:var(--blue-aqua); box-shadow:0 0 0 5px rgba(47,168,217,.22);
  }
  .altitude-gauge .marker-label{
    position:absolute; left:16px; top:50%; transform:translateY(-50%);
    font-family:'IBM Plex Mono',monospace; font-size:.8rem; color:var(--white); white-space:nowrap; font-weight:500;
  }
  .altitude-tag{
    position:absolute; left:24px; bottom:24px; color:var(--white);
    font-family:'IBM Plex Mono',monospace; font-size:.72rem; letter-spacing:.08em; opacity:.85;
  }

  /* ---------- PRODUTOS ---------- */
  #produtos{background:var(--blue-ice-2);}
  .prod-grid{display:grid; grid-template-columns:repeat(5,1fr); gap:22px;}
  .prod-card{
    background:var(--white); border:1px solid var(--line); border-radius:18px; padding:26px 20px 28px;
    display:flex; flex-direction:column; align-items:center; text-align:center;
    transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  }
  .prod-card:hover{transform:translateY(-6px); box-shadow:0 20px 40px rgba(11,79,138,.12); border-color:var(--blue-aqua);}
  .prod-imgbox{
    width:100%; aspect-ratio:3/4; display:flex; align-items:center; justify-content:center;
    margin-bottom:18px; background:var(--blue-ice); border-radius:12px; overflow:hidden;
  }
  .prod-imgbox img{height:92%; width:auto; object-fit:contain; mix-blend-mode:multiply;}
  .prod-card h3{font-size:1.05rem; color:var(--ink); margin-bottom:4px;}
  .prod-card .tag{
    font-family:'IBM Plex Mono',monospace; font-size:.68rem; color:var(--blue-mid);
    text-transform:uppercase; letter-spacing:.08em; margin-bottom:12px;
  }
  .prod-card p{font-size:.86rem; color:var(--ink-soft); line-height:1.5;}
  .prod-card ul{list-style:none; text-align:left; width:100%; margin-top:2px;}
  .prod-card ul li{
    font-size:.86rem; color:var(--ink-soft); padding:6px 0 6px 18px; position:relative; border-top:1px solid var(--line);
  }
  .prod-card ul li:first-child{border-top:none;}
  .prod-card ul li::before{
    content:""; position:absolute; left:0; top:15px; width:6px; height:6px; border-radius:50%; background:var(--blue-aqua);
  }

  /* ---------- QUALIDADE ---------- */
  #qualidade{background:var(--ink); color:var(--white); position:relative; overflow:hidden;}
  #qualidade::before{
    content:""; position:absolute; inset:0; opacity:.10; pointer-events:none;
    background-image:
      repeating-radial-gradient(circle at 18% 30%, transparent 0, transparent 38px, rgba(255,255,255,.6) 39px, transparent 40px),
      repeating-radial-gradient(circle at 85% 75%, transparent 0, transparent 52px, rgba(255,255,255,.5) 53px, transparent 54px);
  }
  #qualidade .section-head p{color:rgba(255,255,255,.68);}
  #qualidade .eyebrow{color:var(--blue-aqua);}
  #qualidade .section-head h2{color:var(--white);}

  .cert-band{
    position:relative; z-index:1; background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.12);
    border-radius:20px; padding:40px; display:flex; align-items:center; gap:44px; margin-bottom:80px;
    flex-wrap:wrap;
  }
  .cert-band img{
    max-width:340px; width:100%; border-radius:10px; background:#fff; padding:14px;
  }
  .cert-band .cert-copy{flex:1; min-width:240px;}
  .cert-copy h3{font-size:1.2rem; margin-bottom:10px; color:var(--white);}
  .cert-copy p{color:rgba(255,255,255,.7); font-size:.94rem; line-height:1.6; margin-bottom:14px;}
  .cert-list{list-style:none; display:flex; flex-direction:column; gap:8px;}
  .cert-list li{
    font-family:'IBM Plex Mono',monospace; font-size:.78rem; color:rgba(255,255,255,.75);
    display:flex; gap:10px; align-items:baseline;
  }
  .cert-list li::before{content:"—"; color:var(--blue-aqua);}

  .analysis{position:relative; z-index:1;}
  .analysis-head{display:flex; justify-content:space-between; align-items:flex-end; gap:20px; margin-bottom:26px; flex-wrap:wrap;}
  .analysis-head h3{font-size:1.3rem; color:var(--white);}
  .analysis-head span{font-family:'IBM Plex Mono',monospace; font-size:.75rem; color:rgba(255,255,255,.5);}
  .param-grid{display:grid; grid-template-columns:repeat(5,1fr); gap:1px; background:rgba(255,255,255,.12); border-radius:14px; overflow:hidden;}
  .param{background:#141C21; padding:26px 20px;}
  .param .p-name{font-size:.78rem; color:rgba(255,255,255,.55); text-transform:uppercase; letter-spacing:.07em; margin-bottom:10px;}
  .param .p-val{font-family:'IBM Plex Mono',monospace; font-size:1.5rem; color:var(--blue-aqua); font-weight:500;}
  .param .p-unit{font-size:.7rem; color:rgba(255,255,255,.4); margin-left:3px;}

  /* ---------- LOCALIZACAO ---------- */
  #localizacao{background:var(--white);}
  .loc-grid{display:grid; grid-template-columns:.85fr 1.15fr; gap:60px; align-items:center;}
  .map-box{position:relative; display:flex; justify-content:center;}
  .map-frame{position:relative; width:100%; max-width:380px;}
  .map-frame .map-img{width:100%; height:auto; display:block; border-radius:18px; border:1px solid var(--line);}

  .map-pin{
    position:absolute; transform:translate(-50%,-100%);
    display:flex; flex-direction:column; align-items:center; text-decoration:none; cursor:pointer;
  }
  .pin-label{
    margin-bottom:6px; font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:.74rem; color:var(--ink);
    background:rgba(255,255,255,.94); padding:3px 9px; border-radius:100px; white-space:nowrap;
    box-shadow:0 3px 10px rgba(11,79,138,.18);
    transition:transform .2s ease;
  }
  .map-pin:hover .pin-label{transform:translateY(-2px);}
  .pin-badge{
    width:46px; height:46px; border-radius:50%; background:#fff; border:3px solid var(--blue-deep);
    display:flex; align-items:center; justify-content:center; overflow:hidden;
    box-shadow:0 6px 16px rgba(11,79,138,.4);
    transition:transform .25s ease, border-color .25s ease;
  }
  .pin-badge img{width:100%; height:100%; object-fit:cover;}
  .map-pin:hover .pin-badge{transform:scale(1.15); border-color:var(--blue-aqua);}
  .pin-point{
    width:0; height:0; margin-top:-1px;
    border-left:6px solid transparent; border-right:6px solid transparent; border-top:9px solid var(--blue-deep);
  }
  .map-pin:hover .pin-point{border-top-color:var(--blue-aqua);}

  .loc-list{display:flex; flex-direction:column; gap:0;}
  .loc-item{
    display:flex; align-items:center; justify-content:space-between; gap:18px;
    padding:24px 0; border-top:1px solid var(--line);
    transition:padding-left .25s ease;
  }
  .loc-item:last-child{border-bottom:1px solid var(--line);}
  .loc-item:hover{padding-left:8px;}
  .loc-left{display:flex; align-items:center; gap:16px;}
  .loc-num{font-family:'IBM Plex Mono',monospace; font-size:.75rem; color:var(--blue-mid);}
  .loc-name{font-family:'Space Grotesk',sans-serif; font-size:1.15rem; font-weight:600;}
  .loc-sub{font-size:.85rem; color:var(--ink-soft); margin-top:2px;}
  .loc-arrow{
    width:38px; height:38px; border-radius:50%; border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center; flex-shrink:0;
    transition:background .25s ease, border-color .25s ease, transform .25s ease;
  }
  .loc-item:hover .loc-arrow{background:var(--blue-deep); border-color:var(--blue-deep); transform:rotate(45deg);}
  .loc-arrow svg{width:16px; height:16px;}
  .loc-item:hover .loc-arrow svg path{stroke:#fff;}

  /* ---------- CONTACTO ---------- */
  #contacto{background:var(--blue-ice-2);}
  .contact-grid{display:grid; grid-template-columns:.9fr 1.1fr; gap:60px;}
  .contact-cards{display:flex; flex-direction:column; gap:14px;}
  .c-card{
    display:flex; align-items:center; gap:16px; background:var(--white); border:1px solid var(--line);
    border-radius:14px; padding:18px 20px; transition:border-color .25s ease, transform .25s ease;
  }
  .c-card:hover{border-color:var(--blue-aqua); transform:translateX(4px);}
  .c-ico{
    width:44px; height:44px; border-radius:50%; background:var(--blue-ice); display:flex; align-items:center; justify-content:center; flex-shrink:0;
  }
  .c-ico svg{width:20px; height:20px;}
  .c-card b{display:block; font-size:.72rem; text-transform:uppercase; letter-spacing:.07em; color:var(--blue-mid); margin-bottom:2px;}
  .c-card span{font-size:.96rem; color:var(--ink); word-break:break-word;}

  .form-panel{background:var(--white); border:1px solid var(--line); border-radius:20px; padding:40px;}
  .form-panel h3{font-size:1.3rem; margin-bottom:6px;}
  .form-panel > p{color:var(--ink-soft); font-size:.92rem; margin-bottom:28px;}
  .form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:16px;}
  .field{display:flex; flex-direction:column; gap:7px;}
  .field.full{grid-column:1/-1;}
  label{font-size:.75rem; font-weight:600; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-soft);}
  input, textarea{
    border:1px solid var(--line); border-radius:10px; padding:13px 15px; font-family:'Inter',sans-serif; font-size:.94rem;
    background:var(--blue-ice-2); transition:border-color .2s ease, background .2s ease;
  }
  input:focus, textarea:focus{outline:none; border-color:var(--blue-aqua); background:#fff;}
  textarea{resize:vertical; min-height:110px;}
  .form-submit{
    margin-top:6px; width:100%; justify-content:center; background:var(--blue-deep); color:#fff; border:none;
  }
  .form-submit:hover{background:var(--blue-mid); transform:translateY(-2px); box-shadow:0 12px 26px rgba(11,79,138,.28);}
  .form-note{font-size:.78rem; color:var(--ink-soft); margin-top:12px; line-height:1.5;}

  /* ---------- FOOTER ---------- */
  footer{background:var(--ink); color:rgba(255,255,255,.8); padding:72px 0 28px;}
  .footer-grid{display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:48px; padding-bottom:52px; border-bottom:1px solid rgba(255,255,255,.12);}
  .footer-brand img{height:40px; margin-bottom:16px;}
  .footer-brand p{font-size:.88rem; color:rgba(255,255,255,.55); line-height:1.6; max-width:280px;}
  .footer-social{display:flex; gap:10px; margin-top:20px;}
  .footer-social a{
    width:38px; height:38px; border-radius:50%; border:1px solid rgba(255,255,255,.2);
    display:flex; align-items:center; justify-content:center; transition:background .25s ease, border-color .25s ease;
  }
  .footer-social a:hover{background:var(--blue-aqua); border-color:var(--blue-aqua);}
  .footer-social svg{width:16px; height:16px;}
  .footer-col h4{font-size:.75rem; text-transform:uppercase; letter-spacing:.08em; color:rgba(255,255,255,.45); margin-bottom:18px; font-weight:600;}
  .footer-col ul{list-style:none; display:flex; flex-direction:column; gap:12px;}
  .footer-col a{font-size:.9rem; color:rgba(255,255,255,.78); transition:color .2s ease;}
  .footer-col a:hover{color:var(--blue-aqua);}
  .footer-bottom{
    display:flex; justify-content:space-between; align-items:center; padding-top:26px; flex-wrap:wrap; gap:10px;
    font-size:.78rem; color:rgba(255,255,255,.4);
  }

  /* ---------- reveal on scroll ---------- */
  .reveal{opacity:0; transform:translateY(26px); transition:opacity .7s ease, transform .7s ease;}
  .reveal.in{opacity:1; transform:translateY(0);}

  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    .reveal{opacity:1; transform:none; transition:none;}
    .scroll-cue .line{animation:none;}
  }

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:1024px){
    .prod-grid{grid-template-columns:repeat(3,1fr);}
    .sobre-grid, .loc-grid, .contact-grid{grid-template-columns:1fr; gap:44px;}
    .altitude-wrap{height:380px;}
    .param-grid{grid-template-columns:repeat(3,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:720px){
    .wrap{padding:0 20px;}
    /* Fix: backdrop-filter on a fixed-position ancestor makes Safari/iOS
       treat position:fixed descendants (the mobile nav drawer) as relative
       to that ancestor instead of the viewport, breaking the menu outside
       the Home section. Disabling it on mobile removes the bug entirely. */
    header.scrolled{backdrop-filter:none; -webkit-backdrop-filter:none;}
    nav{
      position:fixed; inset:0 0 0 auto; width:78%; max-width:320px; background:var(--white);
      flex-direction:column; align-items:flex-start; justify-content:flex-start;
      padding:0 0 28px; gap:4px; pointer-events:auto;
      box-shadow:-10px 0 40px rgba(0,0,0,.15);
      transform:translateX(100%); transition:transform .35s ease;
      overflow-y:auto;
    }
    nav.open{transform:translateX(0);}
    .nav-banner{
      display:flex; align-items:center; gap:12px; width:100%;
      padding:28px 28px 20px; margin-bottom:10px; border-bottom:1px solid var(--line);
    }
    .nav-banner img{height:42px; width:auto;}
    .nav-banner span{
      font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:1rem;
      color:var(--blue-deep); letter-spacing:.02em;
    }
    nav a{color:var(--ink-soft) !important; width:100%; padding:14px 28px; margin:0;}
    nav a:hover{background:var(--blue-ice) !important; color:var(--blue-deep) !important;}
    .nav-toggle{display:block;}
    .section-pad{padding:80px 0;}
    .prod-grid{grid-template-columns:repeat(2,1fr);}
    .stat-row{grid-template-columns:repeat(2,1fr); row-gap:20px;}
    .stat:nth-child(2){border-right:none;}
    .cert-band{padding:26px;}
    .param-grid{grid-template-columns:repeat(2,1fr);}
    .form-row{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr; gap:32px;}
    .hero-content{padding-bottom:64px;}
    .scroll-cue{display:none;}
  }
  @media (max-width:460px){
    .prod-grid{grid-template-columns:1fr 1fr;}
    .footer-grid{grid-template-columns:1fr;}
  }