:root{
  --bg:#06080c;
  --bg-soft:#0c1118;
  --surface:#111722;
  --surface-2:#171e2a;
  --text:#f7f9fc;
  --muted:#9fa9b7;
  --line:rgba(255,255,255,.1);
  --ice:#75d42e;
  --ice-blue:#158cff;
  --hot:#ef2727;
  --hot-orange:#ff7028;
  --max:1260px;
  --radius:28px;
  --shadow:0 30px 90px rgba(0,0,0,.42);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.6;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit}
.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0}
.skip-link:focus{left:16px;top:16px;z-index:999;background:#fff;color:#000;padding:10px 14px;border-radius:8px}

.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:100;
  background:linear-gradient(180deg,rgba(4,6,9,.94),rgba(4,6,9,.68));
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-shell{height:82px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand img{width:190px;filter:brightness(3.2) saturate(.8)}
.main-nav{display:flex;align-items:center;gap:26px;font-size:13px;font-weight:700}
.main-nav>a:not(.nav-cta){color:#c7ced8}
.main-nav>a:hover{color:white}
.nav-cta{padding:12px 18px;border-radius:12px;background:#fff;color:#090b0f}
.menu-toggle{display:none;width:46px;height:42px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.04);padding:10px}
.menu-toggle span:not(.sr-only){display:block;height:2px;background:#fff;margin:4px 0;border-radius:2px}

.hero{
  min-height:940px;
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  padding-top:82px;
  background:
    radial-gradient(circle at 15% 32%,rgba(25,140,255,.16),transparent 30%),
    radial-gradient(circle at 86% 40%,rgba(239,39,39,.15),transparent 30%),
    linear-gradient(180deg,#070a0f,#080b11 55%,#06080c);
}
.hero-noise{
  position:absolute;inset:0;opacity:.14;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
}
.hero-orb{position:absolute;width:520px;height:520px;border-radius:50%;filter:blur(110px);opacity:.16}
.orb-ice{background:var(--ice-blue);left:-230px;top:210px}
.orb-hot{background:var(--hot);right:-230px;bottom:90px}

.hero-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center;position:relative;z-index:2}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.22em;font-weight:900;color:#c9d0da}
.hero h1,.section-heading h2,.credibility-copy h2,.how-copy h2,.buy-shell h2{
  font-family:Montserrat,sans-serif;
  line-height:.98;
  letter-spacing:-.045em;
  margin:18px 0;
}
.hero h1{font-size:clamp(54px,7vw,94px);max-width:780px}
.hero-lead{font-size:20px;color:var(--muted);max-width:690px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:52px;
  padding:0 23px;
  border-radius:14px;
  font-weight:900;
  transition:.25s ease;
  border:1px solid transparent;
}
.btn:hover{transform:translateY(-3px);filter:brightness(1.06)}
.btn-ice{background:#159bf3;color:#fff;box-shadow:0 15px 40px rgba(21,155,243,.24)}
.btn-ice:hover{background:#28adff}
.btn-hot{background:linear-gradient(135deg,var(--hot),var(--hot-orange));color:#fff;box-shadow:0 15px 40px rgba(239,39,39,.2)}
.hero-badges{display:flex;gap:22px;flex-wrap:wrap;margin-top:30px;color:#c7ced7;font-size:13px}
.hero-badges span:before{content:"✓";color:var(--ice);font-weight:900;margin-right:8px}

.hero-visual{position:relative;min-height:660px}
.experience-card{
  position:absolute;
  width:58%;
  min-height:520px;
  border-radius:34px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow);
  isolation:isolate;
}
.experience-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.experience-bg:after{content:"";position:absolute;inset:0}
.experience-ice{left:0;top:20px;transform:rotate(-5deg)}
.experience-hot{right:0;bottom:10px;transform:rotate(5deg)}
.experience-ice .experience-bg{background-image:url("assets/elderly-active.png")}
.experience-hot .experience-bg{background-image:url("assets/athlete-recovery.png")}
.experience-ice .experience-bg:after{background:linear-gradient(180deg,rgba(5,24,48,.08),rgba(5,24,48,.92))}
.experience-hot .experience-bg:after{background:linear-gradient(180deg,rgba(58,0,0,.08),rgba(58,0,0,.92))}
.experience-content{position:absolute;z-index:2;left:28px;right:28px;bottom:28px}
.experience-content span{font-size:11px;font-weight:900;letter-spacing:.17em}
.experience-content h2{font-family:Montserrat;font-size:48px;line-height:1;margin:6px 0 10px}
.experience-content p{color:#d7dce4;margin:0}
.scroll-hint{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);width:30px;height:52px;border:1px solid rgba(255,255,255,.25);border-radius:30px;display:flex;justify-content:center}
.scroll-hint span{width:4px;height:9px;background:#fff;border-radius:3px;margin-top:10px;animation:scroll 1.8s infinite}
@keyframes scroll{0%{transform:translateY(0);opacity:1}100%{transform:translateY(20px);opacity:0}}

.trust-strip{border-block:1px solid var(--line);background:#0a0e14}
.trust-strip-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-strip-grid div{text-align:center;padding:24px 16px;border-right:1px solid var(--line)}
.trust-strip-grid div:last-child{border-right:0}
.trust-strip-grid strong,.trust-strip-grid span{display:block}
.trust-strip-grid strong{font-family:Montserrat;font-size:15px}
.trust-strip-grid span{font-size:12px;color:var(--muted);margin-top:4px}

.section{padding:120px 0}
.section-heading{max-width:820px;margin-bottom:50px}
.section-heading.center{text-align:center;margin-inline:auto;margin-bottom:58px}
.section-heading h2{font-size:clamp(38px,5vw,64px)}
.section-heading p{font-size:18px;color:var(--muted)}

.benefits-section{background:#090c12}
.benefits-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.glass-card{
  padding:30px;
  border-radius:24px;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid var(--line);
  min-height:280px;
}
.icon-ring{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(255,255,255,.2);font-weight:900;color:#dfe5ec}
.glass-card h3{font-family:Montserrat;font-size:22px;margin:34px 0 10px}
.glass-card p{color:var(--muted);margin:0}

.products-section{background:linear-gradient(180deg,#0b0f16,#070a0f)}
.product-panels{display:grid;gap:28px}
.product-panel{
  position:relative;
  min-height:610px;
  border-radius:34px;
  overflow:hidden;
  border:1px solid var(--line);
  display:grid;
  grid-template-columns:1.25fr .75fr;
  align-items:center;
  padding:54px;
  isolation:isolate;
}
.panel-bg{position:absolute;inset:0;z-index:-1}
.panel-ice .panel-bg{background:radial-gradient(circle at 80% 50%,rgba(34,146,255,.25),transparent 28%),linear-gradient(135deg,#061a32,#0a1018 62%)}
.panel-hot .panel-bg{background:radial-gradient(circle at 80% 50%,rgba(255,53,38,.27),transparent 28%),linear-gradient(135deg,#2a0707,#120b0d 62%)}
.panel-content{max-width:720px}
.product-tag{font-size:12px;font-weight:900;letter-spacing:.18em}
.panel-ice .product-tag{color:#84dc42}
.panel-hot .product-tag{color:#ff635d}
.panel-content h3{font-family:Montserrat;font-size:clamp(40px,5vw,66px);line-height:1;margin:14px 0 18px;letter-spacing:-.04em}
.panel-content>p{color:#c6ced8;font-size:18px}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:28px 0 34px}
.mini-card{display:flex;align-items:center;gap:15px;min-height:96px;padding:16px 18px;border:1px solid var(--line);background:rgba(255,255,255,.025);border-radius:16px;transition:transform .25s ease,border-color .25s ease,background .25s ease}
.mini-card:hover{transform:translateY(-2px);background:rgba(255,255,255,.045)}
.panel-ice .mini-card{border-color:rgba(21,155,243,.55)}
.panel-hot .mini-card{border-color:rgba(239,39,39,.55)}
.mini-icon{width:44px;height:44px;display:grid;place-items:center;flex:0 0 44px}
.mini-icon svg{width:38px;height:38px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.panel-ice .mini-icon{color:#159bf3}
.panel-hot .mini-icon{color:#f12727}
.mini-copy{display:block;min-width:0}
.mini-copy strong,.mini-copy>span{display:block}
.mini-copy strong{font-size:15px;line-height:1.25}
.mini-copy>span{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.45}
.product-slot{
  width:300px;height:480px;justify-self:center;border:1px dashed rgba(255,255,255,.24);border-radius:28px;
  display:grid;place-items:center;text-align:center;color:rgba(255,255,255,.35);font-family:Montserrat;font-weight:900;letter-spacing:.08em;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015))
}

.moments-section{background:#080b10}
.moments-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.moment-card{min-height:410px;border-radius:26px;overflow:hidden;position:relative;background-size:cover;background-position:center;border:1px solid var(--line)}
.moment-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(0,0,0,.9))}
.moment-card span{position:absolute;z-index:2;left:22px;right:22px;bottom:22px;font-family:Montserrat;font-size:20px;font-weight:800}
.moment-1{background-image:url("assets/use-shoulder.png")}
.moment-2{background-image:url("assets/use-knee-back.png")}
.moment-3{background-image:url("assets/use-elderly.png")}
.moment-4{background-image:url("assets/elderlyactive.png")}

.credibility-section{background:linear-gradient(180deg,#0e131c,#090c12)}
.credibility-shell{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
.credibility-copy h2{font-size:clamp(40px,5vw,62px)}
.credibility-copy p{color:var(--muted);font-size:18px}
.registry-grid{display:grid;gap:16px}
.registry-card{padding:26px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025))}
.registry-label{font-size:11px;font-weight:900;letter-spacing:.18em;color:#8ed743}
.registry-card h3{font-family:Montserrat;font-size:23px;margin:10px 0}
.registry-card>strong{display:block;font-size:17px}
.registry-card p{color:var(--muted);margin-bottom:0}
.registry-card dl{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0 0}
.registry-card dl div{padding:12px;border-radius:12px;background:rgba(255,255,255,.04)}
.registry-card dt{font-size:11px;color:var(--muted)}
.registry-card dd{margin:3px 0 0;font-weight:800;font-size:13px}
.registry-ice{border-left:3px solid var(--ice-blue)}
.registry-hot{border-left:3px solid var(--hot)}

.how-section{background:#080b10}
.how-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.how-copy h2{font-size:clamp(42px,5vw,66px)}
.how-copy p{color:var(--muted)}
.steps{display:grid;gap:14px}
.steps article{display:flex;gap:20px;padding:24px;border-radius:20px;border:1px solid var(--line);background:#101620}
.steps article>span{font-family:Montserrat;font-size:36px;font-weight:900;color:#263346}
.steps h3{font-family:Montserrat;margin:2px 0 4px;font-size:20px}
.steps p{color:var(--muted);margin:0}
.safety-note{margin-top:34px;padding:18px 22px;border-radius:16px;background:#101620;border-left:3px solid var(--ice);display:flex;gap:12px;align-items:flex-start}
.safety-note span{color:#c2cad4}

.buy-section{background:linear-gradient(120deg,#0a2849,#160d17 52%,#430a0a)}
.buy-shell{display:flex;align-items:center;justify-content:space-between;gap:40px}
.buy-shell h2{font-size:clamp(44px,5vw,70px)}
.buy-shell p{color:#c8d0da}
.buy-actions{display:flex;gap:14px;flex-wrap:wrap}

.faq-section{background:#0b0f15}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
.accordion details{border-top:1px solid var(--line);padding:22px 0}
.accordion details:last-child{border-bottom:1px solid var(--line)}
.accordion summary{cursor:pointer;font-family:Montserrat;font-weight:800;list-style:none;position:relative;padding-right:34px}
.accordion summary::-webkit-details-marker{display:none}
.accordion summary:after{content:"+";position:absolute;right:0;top:-5px;font-size:28px;color:var(--muted)}
.accordion details[open] summary:after{content:"–"}
.accordion p{color:var(--muted);margin-bottom:0}

.medical-disclaimer{padding:26px 0;background:#07090d;border-top:1px solid var(--line)}
.medical-disclaimer p{margin:0;color:#9ea7b3;font-size:13px}

.site-footer{padding:70px 0 28px;background:#040609}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}
.footer-logo{width:190px;filter:brightness(3.2)}
.footer-grid h3{font-size:14px}
.footer-grid a,.footer-grid p{display:block;color:var(--muted);font-size:14px;margin:8px 0}
.footer-grid a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:22px;margin-top:42px;color:#717b87;font-size:12px}

.mobile-buybar{display:none}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .75s ease,transform .75s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1050px){
  .main-nav{gap:16px}
  .hero-grid{grid-template-columns:1fr}
  .hero{padding:150px 0 80px}
  .hero-visual{min-height:620px}
  .benefits-grid{grid-template-columns:1fr 1fr}
  .product-panel{grid-template-columns:1fr .6fr}
  .moments-grid{grid-template-columns:1fr 1fr}
  .credibility-shell,.how-grid,.faq-grid{grid-template-columns:1fr}
}
@media(max-width:780px){
  body{padding-bottom:72px}
  .container{width:min(calc(100% - 28px),var(--max))}
  .nav-shell{height:72px}
  .brand img{width:165px}
  .menu-toggle{display:block}
  .main-nav{
    display:none;position:absolute;left:14px;right:14px;top:72px;flex-direction:column;align-items:stretch;
    background:#0f141d;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow)
  }
  .main-nav.open{display:flex}
  .hero{padding-top:120px;min-height:auto}
  .hero h1{font-size:50px}
  .hero-lead{font-size:17px}
  .hero-actions .btn{width:100%}
  .hero-visual{min-height:520px}
  .experience-card{min-height:410px;width:63%}
  .experience-content h2{font-size:38px}
  .trust-strip-grid{grid-template-columns:1fr 1fr}
  .trust-strip-grid div:nth-child(2){border-right:0}
  .trust-strip-grid div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .section{padding:86px 0}
  .benefits-grid{grid-template-columns:1fr}
  .product-panel{grid-template-columns:1fr;padding:30px 22px}
  .product-slot{width:100%;height:300px;margin-top:34px}
  .mini-grid{grid-template-columns:1fr}
  .moments-grid{grid-template-columns:1fr}
  .registry-card dl{grid-template-columns:1fr}
  .buy-shell{display:block}
  .buy-actions{margin-top:24px}
  .buy-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column}
  .mobile-buybar{
    display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:120;
    padding:8px;background:rgba(4,6,9,.94);backdrop-filter:blur(16px);border-top:1px solid var(--line)
  }
  .mobile-buybar .btn{min-height:54px}
}
@media(max-width:520px){
  .hero h1{font-size:42px}
  .hero-visual{min-height:430px}
  .experience-card{min-height:340px;width:68%;border-radius:24px}
  .experience-ice{left:-2px}
  .experience-hot{right:-2px}
  .experience-content{left:18px;right:18px;bottom:18px}
  .experience-content h2{font-size:30px}
  .experience-content p{font-size:13px}
  .trust-strip-grid{grid-template-columns:1fr}
  .trust-strip-grid div{border-right:0;border-bottom:1px solid var(--line)}
  .trust-strip-grid div:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* Endosso Natuvile e canal oficial */
.brand{display:flex;flex-direction:column;align-items:flex-start;line-height:1}
.brand-endorsement{margin-top:3px;font-size:9px;letter-spacing:.13em;text-transform:uppercase;color:#8f99a7}
.brand-endorsement strong{color:#8ed743;font-weight:900}

.official-store-note{
  display:flex;align-items:flex-start;gap:11px;max-width:650px;margin-top:20px;padding:13px 15px;
  border:1px solid rgba(142,215,67,.24);border-radius:14px;background:rgba(142,215,67,.055);
  color:#bcc6d2;font-size:12px;line-height:1.5
}
.official-store-note strong{color:#fff}
.official-shield{flex:0 0 23px;width:23px;height:23px;border-radius:50%;display:grid;place-items:center;background:#8ed743;color:#071006;font-weight:900}

.product-visual{position:relative;width:360px;height:520px;justify-self:center;display:grid;place-items:end center;isolation:isolate}
.product-visual:before{content:"";position:absolute;left:50%;bottom:18px;transform:translateX(-50%);width:78%;height:40px;border-radius:50%;filter:blur(18px);opacity:.8}
.product-visual-ice:before{background:rgba(21,140,255,.55)}
.product-visual-hot:before{background:rgba(239,39,39,.55)}
.product-visual img{position:relative;z-index:2;height:100%;width:auto;object-fit:contain;filter:drop-shadow(0 28px 35px rgba(0,0,0,.55));transition:transform .45s ease}
.product-panel:hover .product-visual img{transform:translateY(-8px) scale(1.018)}
.effect-particles{position:absolute;inset:10% -15% 0;z-index:1;opacity:.78;filter:blur(.2px)}
.effect-ice{background:radial-gradient(circle at 50% 58%,rgba(30,151,255,.35),transparent 32%),radial-gradient(circle at 25% 70%,rgba(123,221,255,.24),transparent 16%),radial-gradient(circle at 76% 76%,rgba(49,166,255,.24),transparent 18%)}
.effect-hot{background:radial-gradient(circle at 50% 58%,rgba(255,73,29,.42),transparent 32%),radial-gradient(circle at 25% 72%,rgba(255,119,31,.24),transparent 16%),radial-gradient(circle at 76% 78%,rgba(239,39,39,.28),transparent 18%)}

.official-channel-section{position:relative;overflow:hidden;background:linear-gradient(145deg,#08100c,#0a1118 42%,#11170d)}
.official-channel-section:before{content:"";position:absolute;width:540px;height:540px;border-radius:50%;background:rgba(110,203,55,.12);filter:blur(110px);left:-250px;top:-180px}
.official-channel-shell{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;align-items:center;padding:54px;border:1px solid rgba(142,215,67,.18);border-radius:34px;background:linear-gradient(135deg,rgba(255,255,255,.055),rgba(255,255,255,.018));box-shadow:var(--shadow);position:relative}
.official-channel-brand{padding:34px;border-radius:26px;background:linear-gradient(145deg,#122116,#09110b);border:1px solid rgba(142,215,67,.22)}
.official-kicker{font-size:10px;font-weight:900;letter-spacing:.2em;color:#a4afbc}
.natuvile-logo{display:block;width:min(100%,310px);height:auto;margin:28px 0 24px;filter:drop-shadow(0 10px 26px rgba(142,215,67,.12))}
.official-channel-brand p,.official-channel-content>p{color:var(--muted)}
.official-link{display:inline-flex;gap:8px;align-items:center;margin-top:12px;font-weight:800;color:#fff}
.official-link span{color:#8ed743}
.official-channel-content h2{font-family:Montserrat,sans-serif;font-size:clamp(38px,5vw,62px);line-height:1;letter-spacing:-.045em;margin:18px 0}
.official-benefits{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:30px}
.official-benefits article{display:flex;gap:14px;align-items:flex-start;padding:18px;border-radius:17px;background:rgba(255,255,255,.04);border:1px solid var(--line)}
.official-benefits article>span{font-family:Montserrat;font-weight:900;color:#8ed743}
.official-benefits strong,.official-benefits small{display:block}
.official-benefits small{margin-top:4px;color:var(--muted);line-height:1.45}
.footer-endorsement{max-width:320px}
.footer-endorsement strong{color:#8ed743}

@media(max-width:1050px){
  .official-channel-shell{grid-template-columns:1fr;gap:28px}
}
@media(max-width:780px){
  .brand-endorsement{font-size:8px}
  .product-visual{width:100%;height:390px;margin-top:28px}
  .official-channel-shell{padding:22px;border-radius:24px}
  .official-channel-brand{padding:24px}
  .official-benefits{grid-template-columns:1fr}
}

@media(max-width:520px){.mini-card{min-height:88px;padding:14px}.mini-icon{width:38px;height:38px;flex-basis:38px}.mini-icon svg{width:34px;height:34px}.natuvile-logo{width:230px}}