/* DoTube — rojo, negro y blanco. Identidad propia, sin relación con Prixte. */
:root{
  --red:#e42c26; --red-d:#c41f1a; --ink:#0b0b0c; --ink2:#141416;
  --line:#26262a; --w:#ffffff; --w2:#a8a8ae;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);color:var(--w);line-height:1.55;overflow-x:hidden;
  font-family:'Archivo',system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2{line-height:1.05;letter-spacing:-.035em;font-weight:900;text-wrap:balance}
em{font-style:normal;color:var(--red)}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
.wrap.narrow{max-width:720px}
:focus-visible{outline:3px solid var(--red);outline-offset:3px;border-radius:6px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,11,12,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;
  letter-spacing:-.02em}

/* botón: uno solo y muy claro. Varios CTA compitiendo hunden la conversión. */
.btn{display:inline-flex;align-items:center;justify-content:center;
  background:var(--red);color:var(--w);font-weight:800;letter-spacing:-.01em;
  padding:15px 32px;border-radius:100px;font-size:1rem;
  transition:transform .18s ease,background .18s ease;box-shadow:0 6px 26px rgba(228,44,38,.35)}
.btn:hover{background:var(--red-d);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:.9rem;box-shadow:none}
.btn-xl{padding:19px 46px;font-size:1.12rem}

/* hero */
.hero{text-align:center;padding:76px 0 62px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-45%;left:50%;transform:translateX(-50%);
  width:min(900px,140vw);aspect-ratio:1;border-radius:50%;z-index:-1;
  background:radial-gradient(circle,rgba(228,44,38,.20),transparent 62%)}
.hero-logo{width:clamp(96px,20vw,132px);height:auto;margin-bottom:26px;
  filter:drop-shadow(0 12px 34px rgba(228,44,38,.42))}
.hero h1{font-size:clamp(2.5rem,9vw,4.6rem)}
.lead{margin:22px auto 0;max-width:34ch;color:var(--w2);font-size:clamp(1.02rem,2.6vw,1.22rem);
  font-weight:500}
.cta{margin-top:34px}
.alt-link{margin-top:18px;font-size:.92rem}
.alt-link a{color:var(--w2);text-decoration:underline;text-underline-offset:4px}
.alt-link a:hover{color:var(--w)}

/* prueba social justo debajo del hero: es donde más pesa */
.proof{border-block:1px solid var(--line);background:var(--ink2)}
.proof-in{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 12px;padding:30px 22px;
  text-align:center}
.proof strong{display:block;font-size:1.65rem;font-weight:900;letter-spacing:-.03em}
.proof span{display:block;color:var(--w2);font-size:.82rem;margin-top:2px}
.star{color:var(--red);margin-left:2px}
@media(min-width:720px){.proof-in{grid-template-columns:repeat(4,1fr)}}

/* funciones: icono grande, título corto, una línea de texto */
.feat{padding:78px 0}
.feat .wrap{display:grid;grid-template-columns:1fr;gap:44px 34px}
.f svg{width:60px;height:60px;color:var(--red);margin-bottom:18px;display:block}
.f h2{font-size:clamp(1.35rem,3.6vw,1.7rem);margin-bottom:8px}
.f p{color:var(--w2);font-size:1rem;max-width:34ch}
@media(min-width:640px){.feat .wrap{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.feat .wrap{grid-template-columns:repeat(3,1fr);gap:56px 40px}}

/* banda roja */
.band{background:var(--red);padding:76px 0;text-align:center}
.band h2{font-size:clamp(1.9rem,6vw,3.1rem);color:var(--w)}
.band em{color:var(--ink)}
.band p{margin-top:18px;font-size:1.05rem;color:rgba(255,255,255,.9)}

/* faq */
.faq{padding:78px 0}
.faq h2{font-size:clamp(1.8rem,5vw,2.5rem);text-align:center;margin-bottom:36px}
.qs{display:flex;flex-direction:column;gap:9px}
.qs details{background:var(--ink2);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.qs details[open]{border-color:var(--red)}
.qs summary{padding:18px 22px;cursor:pointer;font-weight:700;font-size:1rem;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:16px}
.qs summary::-webkit-details-marker{display:none}
.qs summary::after{content:'';flex:none;width:11px;height:11px;border-right:2.5px solid var(--red);
  border-bottom:2.5px solid var(--red);transform:rotate(45deg);transition:transform .2s ease}
.qs details[open] summary::after{transform:rotate(-135deg)}
.qs p{padding:0 22px 20px;color:var(--w2);font-size:.96rem}

/* cierre */
.final{padding:86px 0;text-align:center;
  background:radial-gradient(ellipse 70% 90% at 50% 50%,rgba(228,44,38,.14),transparent 70%)}
.final img{margin-bottom:22px;filter:drop-shadow(0 10px 28px rgba(228,44,38,.4))}
.final h2{font-size:clamp(1.9rem,5.5vw,2.9rem)}
.fine{margin-top:20px;color:var(--w2);font-size:.88rem}

.foot{border-top:1px solid var(--line);padding:34px 0 46px;text-align:center;font-size:.92rem}
.foot a{color:var(--red)}
.foot a:hover{text-decoration:underline}
.muted{color:var(--w2);font-size:.84rem;margin-top:6px}
.muted a{color:var(--w2)}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;
    scroll-behavior:auto!important}
}