:root{
  --canvas:#05070B; --line:#16202F;
  --accent:#2DA8F0; --accent-hover:#5CC0FA; --accent-muted:rgba(45,168,240,.2);
  --copper:#E8761E; --copper-hover:#FF8A33;
  --text:#EAF1F8; --text2:#93A4B8; --dim:rgba(234,241,248,.16);
  --display:"Sora",system-ui,sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Sora",system-ui,sans-serif;
  --pad:clamp(20px,5vw,72px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0;overflow-x:clip}
body{background:var(--canvas);color:var(--text);font:400 clamp(16px,1.1vw,17px)/1.7 var(--body);-webkit-font-smoothing:antialiased}
h1,h2,h3,p,ul,ol{margin:0;padding:0}
img,canvas{display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.saltar{position:fixed;left:12px;top:-60px;z-index:100;background:var(--accent);color:#04101c;padding:10px 16px;border-radius:8px;font-weight:600;text-decoration:none;transition:top .2s}
.saltar:focus{top:12px}
.wrap{width:100%;max-width:1400px;margin:0 auto;padding:0 var(--pad)}
.etiqueta,.mono{font:500 11px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;font-variant-numeric:tabular-nums}
.etiqueta{color:var(--accent);display:flex;align-items:center;gap:14px}
.etiqueta::before{content:"";width:28px;height:1px;background:linear-gradient(90deg,var(--accent),transparent)}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:0 26px;border-radius:999px;font:500 14px/1 var(--body);letter-spacing:.01em;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .35s cubic-bezier(.2,.8,.2,1),background .3s}
.btn--cobre{background:var(--copper);color:#1a0c02}
.btn--cobre:hover{background:var(--copper-hover);transform:translateY(-2px)}
.btn--grande{min-height:52px;padding:0 32px;font-size:15px}
@keyframes pulso{0%{box-shadow:0 0 0 0 rgba(232,118,30,.5)}70%{box-shadow:0 0 0 18px rgba(232,118,30,0)}100%{box-shadow:0 0 0 0 rgba(232,118,30,0)}}

/* Navegación */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px var(--pad);transition:background .4s,backdrop-filter .4s}
.nav.sol{background:linear-gradient(180deg,rgba(5,7,11,.78),rgba(5,7,11,0))}
.nav__logo img{height:68px;width:auto}
.nav__links{display:flex;gap:6px}
.nav__links a{padding:10px 16px;border-radius:999px;text-decoration:none;font:500 14px/1 var(--body);color:var(--text2);transition:color .2s,background .2s}
.nav__links a:hover,.nav__links a[aria-current]{color:var(--text);background:rgba(255,255,255,.07)}
.nav__cta{min-height:44px;padding:0 20px;font-size:14px}

/* Portada: sección fijada por scroll */
.hero{position:relative;height:720svh}
.hero__stage{position:sticky;top:0;height:100svh;overflow:hidden;isolation:isolate}
.hero__globo{position:absolute;inset:0;width:100%;height:100%;z-index:1;mix-blend-mode:screen;
  -webkit-mask-image:radial-gradient(ellipse 34% 52% at 70% 50%,#000 72%,transparent 100%);mask-image:radial-gradient(ellipse 34% 52% at 70% 50%,#000 72%,transparent 100%)}
.hero__cobre{position:absolute;inset:0;z-index:0;background:
  radial-gradient(34% 40% at 74% 86%,rgba(232,118,30,.20),transparent 70%),
  radial-gradient(40% 48% at 70% 46%,rgba(45,168,240,.13),transparent 72%)}
.hero__velo{position:absolute;inset:0;z-index:2;pointer-events:none;background:linear-gradient(90deg,rgba(5,7,11,.82) 0%,rgba(5,7,11,.5) 34%,rgba(5,7,11,0) 58%)}
.hero__cont{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;justify-content:center}
.paso{position:absolute;left:var(--pad);right:var(--pad);max-width:760px;opacity:0;transform:translate3d(0,26px,0);filter:blur(10px);pointer-events:none;
  transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1),filter .8s ease}
.paso.on{opacity:1;transform:none;filter:none;pointer-events:auto}
.hero__h1{font:500 clamp(52px,8.2vw,132px)/.95 var(--display);letter-spacing:-.04em;margin:22px 0 26px}
.hero__sub{max-width:31em;color:#b9c7d8;font-size:clamp(16px,1.25vw,19px);margin-bottom:34px}
.paso--f{font:500 clamp(40px,6.2vw,100px)/1.02 var(--display);letter-spacing:-.035em;max-width:13ch}
.paso--f .w{color:var(--dim);transition:color .45s ease}
.paso--f .w.on{color:var(--text)}
.hero__pie{position:absolute;left:var(--pad);right:var(--pad);bottom:26px;z-index:4;display:flex;align-items:center;gap:22px;color:var(--text2)}
.hero__linea{position:relative;flex:1;height:1px;background:var(--line)}
.hero__linea i{position:absolute;inset:0;background:var(--accent);transform-origin:left;transform:scaleX(0)}
.hero__desliza{transition:opacity .5s}

/* Cierre */
.cie{position:relative;padding:clamp(120px,18vw,260px) 0;text-align:center;overflow:hidden;isolation:isolate}
.cie__luz{position:absolute;inset:0;z-index:-1;background:radial-gradient(50% 55% at 50% 62%,rgba(232,118,30,.15),transparent 70%),radial-gradient(60% 60% at 50% 100%,rgba(45,168,240,.12),transparent 70%)}
.cie__h2{font:500 clamp(40px,7vw,112px)/1 var(--display);letter-spacing:-.04em;max-width:13ch;margin:22px auto 44px}
.rev{opacity:0;transform:translate3d(0,26px,0);filter:blur(8px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1),filter .9s ease}
.rev.in{opacity:1;transform:none;filter:none}

/* Pie */
.pie{border-top:1px solid var(--line);padding:30px 0 40px}
.pie__fila{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.pie img{height:44px;width:auto}
.pie nav{display:flex;gap:22px}
.pie a{text-decoration:none;color:var(--text2);font-size:14px;transition:color .2s}
.pie a:hover{color:var(--text)}
.pie p{font-size:13px;color:var(--text2)}

/* Menú de celular */
.nav__menu{display:none;position:relative;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:rgba(5,7,11,.5);cursor:pointer;flex:none}
.nav__menu span{position:absolute;left:13px;right:13px;height:2px;background:var(--text);border-radius:2px;transition:transform .35s cubic-bezier(.2,.8,.2,1),top .35s}
.nav__menu span:first-child{top:17px}.nav__menu span:last-child{top:24px}
.nav__menu[aria-expanded="true"] span:first-child{top:20px;transform:rotate(45deg)}
.nav__menu[aria-expanded="true"] span:last-child{top:20px;transform:rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:45;display:flex;flex-direction:column;justify-content:center;gap:6px;padding:90px var(--pad) 40px;background:rgba(5,7,11,.97);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);opacity:0;transform:translate3d(0,-14px,0);pointer-events:none;transition:opacity .4s,transform .4s cubic-bezier(.2,.8,.2,1)}
.menu[hidden]{display:flex}
.menu.abierto{opacity:1;transform:none;pointer-events:auto}
.menu a{font:500 clamp(40px,12vw,64px)/1.15 var(--display);letter-spacing:-.03em;text-decoration:none;color:var(--text);padding:6px 0}
.menu a:active{color:var(--accent)}
@media (min-width:761px){.menu{display:none!important}}

/* Celular: el globo arriba, el texto abajo */
@media (max-width:760px){
  .nav{padding:10px 16px;gap:10px}
  .nav__logo{margin-right:auto}
  .nav__logo img{height:52px}
  .nav__links{display:none}
  .nav__cta{padding:0 16px;font-size:13px}
  .nav__menu{display:block}
  .hero{height:520svh}
  .hero__globo{-webkit-mask-image:radial-gradient(ellipse 62% 30% at 50% 34%,#000 70%,transparent 100%);mask-image:radial-gradient(ellipse 62% 30% at 50% 34%,#000 70%,transparent 100%)}
  .hero__velo{background:linear-gradient(0deg,rgba(5,7,11,.95) 0%,rgba(5,7,11,.78) 34%,rgba(5,7,11,0) 58%)}
  .hero__cobre{background:radial-gradient(60% 30% at 50% 36%,rgba(45,168,240,.14),transparent 72%),radial-gradient(50% 24% at 70% 62%,rgba(232,118,30,.16),transparent 70%)}
  .hero__cont{justify-content:flex-end}
  .paso{bottom:84px;max-width:none}
  .hero__h1{font-size:clamp(42px,13.4vw,68px);margin:14px 0 16px}
  .hero__sub{font-size:16px;margin-bottom:24px}
  .paso--f{font-size:clamp(34px,10.6vw,56px);max-width:12ch}
  .hero__pie{left:16px;right:16px;bottom:18px;gap:14px}
  .pie{padding-bottom:30px}
}

/* Palabra clave: mismo tipo, un halo azul tenue; color solo en detalles */
em{font-style:normal}
.hero__h1 em,.cie__h2 em{text-shadow:0 0 40px rgba(45,168,240,.25)}
.btn--cobre{box-shadow:0 8px 30px -10px rgba(232,118,30,.5)}
.hero__h1{font-weight:600;letter-spacing:-.05em;font-size:clamp(46px,6.6vw,108px);line-height:1}
.paso--f{font-weight:600;letter-spacing:-.045em;font-size:clamp(34px,4.9vw,80px);max-width:15ch}
.cie__h2{font-weight:600;letter-spacing:-.05em;font-size:clamp(34px,5.6vw,92px)}
@media (min-width:761px){.paso--a{max-width:980px}.hero__h1{white-space:nowrap}}
@media (max-width:760px){.hero__h1{font-size:clamp(34px,10.4vw,54px)}.paso--f{font-size:clamp(28px,8.4vw,44px);max-width:13ch}}
.nav__cta{white-space:nowrap}
@media (max-width:360px){.nav__cta{font-size:12px;padding:0 12px}.nav__logo img{height:44px}}
.hero__h1 em{background:linear-gradient(95deg,#2DA8F0 0%,#6CC4F6 48%,#E8761E 100%);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;text-shadow:none;padding-right:.04em}