:root{
  --bg:#120d0a; --bg2:#1b1410; --line:rgba(233,220,200,.12);
  --cream:#efe4d2; --muted:#a8998a; --gold:#c8924a; --gold2:#e0b072;
  --serif:"Instrument Serif",Georgia,serif; --sans:"Inter Tight",system-ui,sans-serif;
  --r:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--cream);font-family:var(--sans);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
em{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--gold2)}
h1,h2,h3{font-weight:500;letter-spacing:-.02em;line-height:1.02}
h2{font-family:var(--serif);font-weight:400;font-size:clamp(38px,5.4vw,68px)}
h2 em{color:var(--gold2)}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:18px}
.fine{font-size:13px;color:var(--muted);margin-top:16px}
.muted{color:var(--muted)}
.gold{color:var(--gold2)}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px clamp(16px,4vw,48px);background:linear-gradient(var(--bg),rgba(18,13,10,0));transition:background .3s}
.nav.solid{background:rgba(18,13,10,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.logo{font-family:var(--serif);font-size:30px;letter-spacing:-.02em}
.logo span{color:var(--gold)}
.nav-links{display:flex;gap:32px;font-size:15px;color:var(--muted)}
.nav-links a:hover{color:var(--cream)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--cream);color:var(--bg);font-weight:600;font-size:16px;padding:17px 30px;border-radius:999px;transition:transform .25s cubic-bezier(.2,.8,.2,1),background .25s}
.btn:hover{background:#fff;transform:translateY(-2px)}
.btn:active{transform:scale(.97)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-full{width:100%;padding:20px;font-size:17px;margin-top:22px}

/* hero */
.hero{min-height:100svh;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:clamp(24px,5vw,72px);padding:110px clamp(16px,4vw,48px) 60px;max-width:1360px;margin:0 auto}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(58px,8.6vw,124px);line-height:.92;letter-spacing:-.03em}
.lead{font-size:clamp(18px,1.6vw,21px);color:var(--muted);max-width:480px;margin:28px 0 36px}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:18px 22px}
.trust{font-size:14px;color:var(--muted)}
.hero-points{list-style:none;display:flex;gap:clamp(18px,3vw,40px);margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.hero-points li{display:flex;flex-direction:column;font-size:14px;color:var(--muted)}
.hero-points strong{color:var(--cream);font-size:17px;font-weight:600}
.hero-media{position:relative;border-radius:28px;overflow:hidden;aspect-ratio:4/5;box-shadow:0 40px 120px -40px rgba(200,146,74,.35)}
.hero-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.04);animation:breathe 14s ease-in-out infinite alternate}
@keyframes breathe{to{transform:scale(1.1)}}

/* marquee */
.marquee{border-block:1px solid var(--line);overflow:hidden;padding:20px 0;font-family:var(--serif);font-style:italic;font-size:26px;color:var(--muted)}
.marquee-track{display:flex;gap:56px;width:max-content;animation:scroll 38s linear infinite}
.marquee-track span::after{content:"·";margin-left:56px;color:var(--gold)}
@keyframes scroll{to{transform:translateX(-50%)}}

/* problem */
.problem{max-width:1100px;margin:0 auto;padding:clamp(90px,14vw,180px) clamp(16px,4vw,48px)}
.big{font-family:var(--serif);font-size:clamp(34px,5vw,64px);line-height:1.08;letter-spacing:-.02em}
.big+.big{margin-top:24px}

/* scenes */
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:0 clamp(16px,4vw,48px);max-width:1440px;margin:0 auto}
.scene{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/5.4}
.scene img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.8,.2,1)}
.scene:hover img{transform:scale(1.05)}
.scene::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 45%,rgba(10,7,5,.88))}
.scene-copy{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:28px}
.scene-copy span{font-size:13px;color:var(--gold);letter-spacing:.14em}
.scene-copy h3{font-family:var(--serif);font-weight:400;font-size:38px;margin:6px 0 8px}
.scene-copy p{font-size:15px;color:#d5c8b6;max-width:330px}

/* sections */
.section-head{max-width:760px;margin-bottom:56px}
.how,.savings,.specs,.faq{max-width:1200px;margin:0 auto;padding:clamp(90px,12vw,160px) clamp(16px,4vw,48px) 0}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.steps li{background:var(--bg2);border:1px solid var(--line);border-radius:var(--r);padding:34px 30px 36px}
.steps b{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:1px solid var(--gold);color:var(--gold);font-family:var(--serif);font-size:22px;font-weight:400;margin-bottom:46px}
.steps h3{font-size:21px;margin-bottom:10px}
.steps p{color:var(--muted);font-size:16px}

.three{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,90px);align-items:center;max-width:1200px;margin:0 auto;padding:clamp(90px,12vw,160px) clamp(16px,4vw,48px) 0}
.three-media{border-radius:var(--r);overflow:hidden;background:#f3efe9}
.checks{list-style:none;margin-top:34px}
.checks li{padding:18px 0 18px 34px;border-top:1px solid var(--line);position:relative;color:var(--muted)}
.checks li:last-child{border-bottom:1px solid var(--line)}
.checks li::before{content:"";position:absolute;left:4px;top:26px;width:12px;height:12px;border-radius:50%;background:var(--gold)}
.checks strong{color:var(--cream);font-weight:600}

/* savings */
.calc{background:var(--bg2);border:1px solid var(--line);border-radius:24px;padding:clamp(26px,4vw,48px);max-width:820px}
.calc label{display:flex;justify-content:space-between;gap:12px;font-size:16px;color:var(--muted);margin-top:8px}
.calc output{color:var(--cream);font-weight:600}
.calc input[type=range]{width:100%;margin:14px 0 26px;accent-color:var(--gold);height:28px}
.calc-result{display:grid;grid-template-columns:1fr 1fr;gap:16px;border-top:1px solid var(--line);padding-top:28px}
.calc-result span{display:block;font-size:14px;color:var(--muted)}
.calc-result strong{font-family:var(--serif);font-weight:400;font-size:clamp(46px,6vw,72px);line-height:1}

/* specs */
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.spec-grid div{padding:26px 20px 26px 0;border-bottom:1px solid var(--line)}
.spec-grid dt{font-size:13px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.spec-grid dd{font-size:22px;margin-top:6px}

/* buy */
.buy{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:center;max-width:1200px;margin:0 auto;padding:clamp(90px,12vw,160px) clamp(16px,4vw,48px) 0}
.buy-media{border-radius:24px;overflow:hidden;aspect-ratio:4/5}
.buy-media img{width:100%;height:100%;object-fit:cover}
.buy-box h2{margin-bottom:28px}
.options{display:grid;gap:12px}
.opt{display:flex;align-items:center;gap:16px;border:1px solid var(--line);border-radius:16px;padding:20px 22px;cursor:pointer;transition:border-color .2s,background .2s}
.opt:has(input:checked){border-color:var(--gold);background:rgba(200,146,74,.07)}
.opt input{accent-color:var(--gold);width:20px;height:20px;flex:none}
.opt-body{flex:1;display:flex;flex-direction:column}
.opt-title{font-weight:600;font-size:17px}
.opt-sub{font-size:14px;color:var(--muted)}
.opt-price{font-family:var(--serif);font-size:30px}
.tag{font-family:var(--sans);font-style:normal;font-size:11px;letter-spacing:.08em;text-transform:uppercase;background:var(--gold);color:var(--bg);padding:3px 8px;border-radius:99px;margin-left:6px;vertical-align:2px}
.buy-trust{list-style:none;margin-top:22px;display:grid;gap:8px;font-size:14px;color:var(--muted)}
.buy-trust li::before{content:"✓";color:var(--gold);margin-right:10px}
.buy-incl{font-size:14px;color:var(--muted);margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.buy-incl strong{color:var(--cream)}

/* faq */
.faq details{border-top:1px solid var(--line);padding:24px 0}
.faq details:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;font-size:20px;display:flex;justify-content:space-between;gap:20px}
.faq summary::after{content:"+";color:var(--gold);font-size:26px;line-height:1;transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);margin-top:14px;max-width:760px}

/* final */
.final{text-align:center;padding:clamp(110px,15vw,200px) 16px}
.final h2{font-size:clamp(44px,7vw,96px);margin-bottom:44px}

.foot{border-top:1px solid var(--line);padding:40px clamp(16px,4vw,48px) 110px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;font-size:14px;color:var(--muted)}
.foot nav{display:flex;flex-wrap:wrap;gap:22px}
.foot a:hover{color:var(--cream)}

.sticky-buy{position:fixed;left:12px;right:12px;bottom:12px;z-index:30;display:none;align-items:center;justify-content:space-between;background:rgba(27,20,16,.92);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:999px;padding:8px 8px 8px 22px;transform:translateY(140%);transition:transform .4s cubic-bezier(.2,.8,.2,1)}
.sticky-buy.show{transform:none}
.toast{position:fixed;left:50%;bottom:90px;transform:translate(-50%,30px);opacity:0;background:var(--cream);color:var(--bg);padding:14px 22px;border-radius:14px;font-weight:500;max-width:min(92vw,440px);text-align:center;z-index:40;transition:.35s;pointer-events:none}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* hero: visible desde el primer instante (anuncios = 3 segundos) */
.rise{animation:rise .7s cubic-bezier(.2,.8,.2,1) both}
.hero-copy .rise:nth-child(2){animation-delay:.05s}
.hero-copy .rise:nth-child(3){animation-delay:.1s}
.hero-copy .rise:nth-child(4){animation-delay:.15s}
@keyframes rise{from{opacity:.001;transform:translateY(14px)}}
/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.marquee-track,.hero-media img{animation:none}}

/* responsive */
@media (max-width:900px){
  .nav-links{display:none}
  .hero{grid-template-columns:1fr;padding-top:96px;min-height:auto}
  .hero-media{order:-1;aspect-ratio:1/.9}
  .hero-media img{object-position:center 35%}
  .lead{margin:20px 0 26px}
  .hero-points{margin-top:36px}
  .scenes{grid-template-columns:1fr;gap:12px}
  .scene{aspect-ratio:4/4.6}
  .steps{grid-template-columns:1fr}
  .steps b{margin-bottom:22px}
  .three,.buy{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:1fr 1fr}
  .sticky-buy{display:flex}
}
@media (max-width:480px){
  body{font-size:16px}
  .hero-points{gap:14px}
  .hero-points strong{font-size:15px}
  .hero-points li{font-size:12px}
  .calc-result{grid-template-columns:1fr}
  .opt{padding:16px}
  .opt-price{font-size:24px}
}