:root{
  --bg0:#04060c; --bg1:#081422; --bg2:#0c2036;
  --ink:#eef3f9; --muted:#8b97a9; --dim:#5c6676;
  --green:#00d26a; --amber:#ffc400; --red:#ff3b30; --sky:#4aa8ff;
  --line:rgba(255,255,255,.10); --card:rgba(255,255,255,.035);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip}
img,svg{max-width:100%}
*{min-width:0}
body{
  background:var(--bg0); color:var(--ink);
  font-family:'Manrope',system-ui,sans-serif; line-height:1.6; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* atmospheric background */
.sky{position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(1200px 700px at 78% -8%, rgba(0,210,106,.10), transparent 60%),
    radial-gradient(1000px 800px at 12% 8%, rgba(74,168,255,.10), transparent 55%),
    linear-gradient(180deg, #04060c 0%, #06101d 42%, #081826 72%, #04060c 100%);}
.grain{position:fixed;inset:0;z-index:-1;opacity:.05;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");}

.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}

/* nav */
nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(4,6,12,.55);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}
.brand .mk{width:12px;height:12px;border-radius:50%;background:var(--green);box-shadow:0 0 14px var(--green)}
.brand small{font-family:'Azeret Mono',monospace;color:var(--muted);font-weight:500;font-size:11px;letter-spacing:.15em;text-transform:uppercase}
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:15px;
  background:var(--green);color:#03110a;padding:13px 22px;border-radius:999px;
  border:none;cursor:pointer;transition:transform .18s ease, box-shadow .18s ease;
  box-shadow:0 8px 30px rgba(0,210,106,.28)}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(0,210,106,.45)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--green);color:var(--green)}
.btn.sm{padding:10px 18px;font-size:14px}

/* hero */
header{position:relative;padding:70px 0 40px}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center}
.hero>*,.split>*{min-width:0}
.eyebrow{display:inline-block;font-family:'Azeret Mono',monospace;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);max-width:100%;
  border:1px solid var(--line);padding:7px 14px;border-radius:999px;margin-bottom:24px;line-height:1.6}
.eyebrow b{color:var(--green)}
.eyebrow b{color:var(--green)}
h1{font-family:'Anton',sans-serif;font-weight:400;line-height:.94;letter-spacing:.005em;
  font-size:clamp(40px,8vw,92px);text-transform:uppercase;overflow-wrap:break-word}
h1 .glow{color:var(--green);text-shadow:0 0 34px rgba(0,210,106,.5)}
.lead{color:var(--muted);font-size:19px;max-width:33ch;margin:22px 0 30px}
.cta-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.price-tag{display:flex;flex-direction:column;line-height:1.1}
.price-tag b{font-family:'Azeret Mono',monospace;font-size:26px;color:var(--ink)}
.price-tag span{font-size:12px;color:var(--dim)}

.hero-watch{position:relative;display:flex;justify-content:center}
.hero-watch::before{content:"";position:absolute;inset:2% 6%;border-radius:26px;
  background:radial-gradient(60% 50% at 60% 70%, rgba(0,210,106,.28), transparent 70%);filter:blur(30px);animation:breathe 5s ease-in-out infinite}
.hero-watch img{width:100%;max-width:380px;position:relative;border-radius:24px;object-fit:cover;
  border:1px solid rgba(255,255,255,.12);box-shadow:0 34px 80px rgba(0,0,0,.62)}
@keyframes breathe{0%,100%{opacity:.65}50%{opacity:1}}
/* photo helpers */
.photo{border-radius:20px;border:1px solid rgba(255,255,255,.10);box-shadow:0 24px 60px rgba(0,0,0,.5);object-fit:cover;display:block}
.phases{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.ph{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);aspect-ratio:9/16;background:#000}
.ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.ph:hover img{transform:scale(1.05)}
.ph .cap{position:absolute;left:0;right:0;bottom:0;padding:16px 14px;
  background:linear-gradient(180deg,transparent,rgba(4,6,12,.9));}
.ph .cap b{display:block;font-family:'Azeret Mono',monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--green)}
.ph .cap span{font-size:13px;color:#d5dde7}
.banner{position:relative;height:min(60vh,520px);margin:0;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center}
.banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,6,12,.75),rgba(4,6,12,.25) 60%,rgba(4,6,12,.7))}
.banner .in{position:relative;z-index:2;padding:0 24px}
.banner h2{text-shadow:0 4px 30px rgba(0,0,0,.7)}
.banner p{color:#dfe7f0;margin-top:14px;font-size:18px;text-shadow:0 2px 14px rgba(0,0,0,.8)}

/* altitude ladder */
.ladder{position:absolute;left:-2px;top:50%;transform:translateY(-50%);display:none;flex-direction:column;gap:0;font-family:'Azeret Mono',monospace;font-size:11px}
.ladder div{display:flex;align-items:center;gap:9px;color:var(--dim);padding:7px 0}
.ladder i{width:26px;height:2px;border-radius:2px}

/* reveal */
.rv{opacity:0;transform:translateY(22px);animation:rise .8s cubic-bezier(.2,.7,.2,1) forwards}
@keyframes rise{to{opacity:1;transform:none}}
/* Seguranca: se a animacao nao rodar (reduced motion), conteudo fica visivel */
@media (prefers-reduced-motion: reduce){.rv{opacity:1;transform:none;animation:none}}
.no-anim .rv{opacity:1;transform:none;animation:none}

/* sections */
section{padding:72px 0;position:relative}
.tag{font-family:'Azeret Mono',monospace;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--green);margin-bottom:14px}
h2{font-family:'Anton',sans-serif;font-weight:400;font-size:clamp(26px,6vw,50px);line-height:1.02;text-transform:uppercase;letter-spacing:.01em;overflow-wrap:break-word}
.sub{color:var(--muted);font-size:18px;max-width:56ch;margin-top:16px}

/* traffic light */
.zones{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.zone{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:26px 22px 30px;text-align:center;position:relative;overflow:hidden;transition:transform .2s ease,border-color .2s ease}
.zone:hover{transform:translateY(-6px)}
.zone img{width:74%;margin:0 auto 14px;display:block}
.zone .lvl{font-family:'Azeret Mono',monospace;font-size:13px;letter-spacing:.1em;text-transform:uppercase}
.zone p{color:var(--muted);font-size:14.5px;margin-top:6px}
.zone.g{border-top:3px solid var(--green)} .zone.g .lvl{color:var(--green)}
.zone.y{border-top:3px solid var(--amber)} .zone.y .lvl{color:var(--amber)}
.zone.r{border-top:3px solid var(--red)}   .zone.r .lvl{color:var(--red)}

/* features */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:46px}
.f{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;transition:transform .2s,border-color .2s}
.f:hover{transform:translateY(-4px);border-color:rgba(0,210,106,.4)}
.f .ic{font-size:26px;margin-bottom:12px}
.f h3{font-size:17px;font-weight:800;margin-bottom:6px}
.f p{color:var(--muted);font-size:14.5px}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-top:30px}
.split img{width:min(360px,88%);margin:0 auto;display:block;filter:drop-shadow(0 24px 50px rgba(0,0,0,.5))}
ul.check{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:12px}
ul.check li{display:flex;gap:12px;color:var(--muted);font-size:15.5px}
ul.check li::before{content:"";flex:0 0 8px;height:8px;margin-top:9px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}

/* price card */
.models{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:38px}
.models span{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:11px 18px;font-weight:600;font-size:14px;transition:border-color .2s,transform .2s}
.models span:hover{border-color:var(--green);transform:translateY(-2px)}
.modnote{text-align:center;color:var(--dim);font-size:13px;margin-top:20px}
.offer{background:linear-gradient(180deg, rgba(0,210,106,.08), rgba(255,255,255,.02));
  border:1px solid rgba(0,210,106,.35);border-radius:28px;padding:44px;text-align:center;max-width:640px;margin:44px auto 0;position:relative;overflow:hidden}
.offer .big{font-family:'Azeret Mono',monospace;font-size:64px;font-weight:700;line-height:1}
.offer .once{color:var(--muted);margin-bottom:8px}
.offer .incl{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:22px 0 28px}
.offer .incl span{font-size:13px;color:var(--ink);background:rgba(255,255,255,.06);border:1px solid var(--line);padding:8px 14px;border-radius:999px}

/* disclaimer */
.warn{border:1px solid rgba(255,59,48,.4);background:rgba(255,59,48,.06);border-radius:20px;padding:26px 28px;max-width:820px;margin:0 auto}
.warn .h{display:flex;align-items:center;gap:10px;font-weight:800;color:#ff6b62;margin-bottom:10px;font-size:15px;letter-spacing:.02em}
.warn p{color:#d7c3c0;font-size:14.5px}

/* faq */
.faq{max-width:780px;margin:40px auto 0;display:flex;flex-direction:column;gap:12px}
details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:4px 22px;transition:border-color .2s}
details[open]{border-color:rgba(0,210,106,.35)}
summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:'Azeret Mono',monospace;color:var(--green);font-size:22px;transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{color:var(--muted);padding:0 0 18px;font-size:15px}

/* footer */
footer{border-top:1px solid var(--line);padding:40px 0;text-align:center;color:var(--dim);font-size:13.5px}
footer .mk{color:var(--green)}

.center{text-align:center;max-width:720px;margin:0 auto}

@media(max-width:860px){
  nav .wrap{height:60px}
  .brand small{display:none}
  .brand{font-size:14px}
  .hero{grid-template-columns:1fr;text-align:center}
  .lead{margin-left:auto;margin-right:auto;max-width:100%}
  .cta-row{justify-content:center;flex-direction:column;gap:14px}
  .hero-watch{order:-1}
  .eyebrow{white-space:normal}
  .zones,.feat{grid-template-columns:1fr}
  .phases{grid-template-columns:repeat(2,1fr);gap:12px}
  .split{grid-template-columns:1fr}
  .split .txt{order:2}
  section{padding:54px 0}
  header{padding:44px 0 20px}
}
@media(max-width:480px){
  .wrap{padding:0 18px}
  nav .wrap{padding:0 14px}
  .brand{font-size:13px;letter-spacing:0}
  .navr{gap:11px}
  .btn.sm{padding:9px 13px;font-size:13px}
  .phide{display:none}
  .eyebrow{font-size:10.5px;letter-spacing:.08em;max-width:100%;white-space:normal;text-align:center}
  h1{font-size:clamp(36px,10.5vw,60px)}
  h2{font-size:clamp(23px,6.2vw,44px);letter-spacing:0}
  .sub{font-size:16px}
  .lead{font-size:17px}
  .offer{padding:32px 20px}
  .offer .big{font-size:52px}
  .banner{height:min(52vh,420px)}
}

/* live demo watch (animado) */
.livewrap{display:flex;justify-content:center;margin:6px 0 42px}
.lwatch{width:280px;height:280px;border-radius:50%;background:#000;position:relative;overflow:hidden;
  box-shadow:0 0 0 8px #14171d,0 0 0 14px #2c3037,0 0 50px rgba(0,210,106,.22),0 24px 60px #0009}
.lband{position:absolute;top:0;left:0;width:100%;height:7%;background:#00d26a;transition:background .18s}
.lstate{position:absolute;top:15%;left:0;width:100%;text-align:center;color:#ffc400;font-weight:700;font-size:17px;letter-spacing:.03em}
.lnum{position:absolute;top:29%;left:0;width:100%;text-align:center;font-family:'Anton',sans-serif;font-size:84px;line-height:1;color:#00d26a;transition:color .12s}
.lunit{position:absolute;top:64%;left:0;width:100%;text-align:center;color:#8b97a9;font-size:18px}
.lrec{position:absolute;top:78%;left:0;width:100%;text-align:center;color:#ff3b30;font-weight:700;font-size:13px;letter-spacing:.1em}
/* scroll reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* diferencial (o que altimetro tradicional nao tem) */
.diff{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.d{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px 20px;text-align:center;transition:transform .2s,border-color .2s}
.d:hover{transform:translateY(-4px);border-color:rgba(0,210,106,.4)}
.d .dic{font-size:30px;margin-bottom:10px}
.d b{display:block;font-size:16px;margin-bottom:5px}
.d span{color:var(--muted);font-size:13.5px}
@media(max-width:860px){.diff{grid-template-columns:repeat(2,1fr)}}