:root{
  --bg:#000; --bg-2:#0b0b0b; --card:#0f0f0f; --line:#1f1f1f; --line-2:#2a2a2a;
  --text:#fff; --muted:#9a9a9a; --dim:#5e5e5e;
  /* acento: blanco (estilo monocromo) */
  --gold:#ffffff; --gold-2:#ffffff; --ok:#4ade80; --bad:#ff6b5e;
  --radius:22px; --max:1120px;
  --sans:"Helvetica Neue", Helvetica, "Inter", Arial, sans-serif;
  --serif:var(--sans);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-weight:300;font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
b,strong{font-weight:700}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
/* dos tonos en títulos: la parte "serif" pasa a gris */
.serif{font-family:inherit;font-style:normal;color:var(--muted)}
.gold{color:var(--muted)}
h1,h2,h3{font-weight:700;letter-spacing:-.02em;line-height:1.1}
h2{font-size:clamp(23px,3.4vw,38px)}
h3{font-size:17px;letter-spacing:-.01em}
.lead{color:var(--muted);font-size:clamp(14.5px,1.25vw,16.5px);max-width:560px}
.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}
section{padding:90px 0;position:relative}

/* pill / eyebrow */
.eyebrow,.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#cfcfcf;font-weight:400;padding:8px 16px;border:1px solid var(--line-2);border-radius:999px;background:rgba(255,255,255,.03);letter-spacing:0;text-transform:none}
.eyebrow:before,.pill:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--muted);box-shadow:none}
.hero .pill:before{background:var(--ok);box-shadow:0 0 10px var(--ok)}

/* botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#fff;color:#000;font-family:var(--sans);font-weight:700;font-size:13px;letter-spacing:-.02em;line-height:1.4;padding:16px 32px;border-radius:999px;text-decoration:none;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;box-shadow:0 10px 40px -12px rgba(255,255,255,.35)}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 50px -12px rgba(255,255,255,.5)}
.btn .arr{transition:transform .2s}.btn:hover .arr{transform:translateX(4px)}
.btn svg{width:16px;height:16px}
.btn-ghost{background:transparent;color:#fff;border:1px solid var(--line-2);box-shadow:none}
.btn-ghost:hover{background:#111;box-shadow:none}
.note{font-size:13px;color:var(--dim);margin-top:14px}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;padding:16px 0;border-bottom:1px solid transparent;transform:translateY(-101%);opacity:0;pointer-events:none;transition:transform .35s ease,opacity .3s ease,background .3s,border-color .3s}
.nav.scrolled{transform:none;opacity:1;pointer-events:auto;background:rgba(0,0,0,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:center}
.logo{font-weight:700;letter-spacing:.02em;font-size:17px;text-decoration:none}
.logo{text-shadow:0 1px 10px rgba(0,0,0,.55)}
.logo span{font-weight:300;color:rgba(255,255,255,.66)}
.nav .btn{padding:10px 18px;font-size:13px}

/* reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

@media (max-width:640px){
  section{padding:64px 0}
  .btn{width:100%;padding:16px 22px}
  .nav .btn{width:auto}
}