:root{
  --bg-main:#FFFFFF;
  --bg-section:#F5F5F7;
  --text-main:#111111;
  --text-muted:#6B7280;
  --border-color:#E5E7EB;
  --primary:#0A84FF;
  --primary-hover:#0066CC;
  --dark-main:#0B0B0D;
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
}

.container{ max-width:1100px; margin:0 auto; padding:24px; }

.header{
  position: sticky; top:0; z-index:20;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}
.header__content{ display:flex; align-items:center; justify-content:space-between; gap:16px; }
.brand{ text-decoration:none; color:inherit; }
.brand__name{ font-weight:900; letter-spacing:.14em; font-size:12px; }

.nav a{
  text-decoration:none;
  color: var(--text-muted);
  margin-left: 18px;
  font-weight:600;
  font-size:14px;
}
.nav a.active, .nav a:hover{ color: var(--text-main); }

.fab{
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 56px;
  height: 56px;
  border-radius: 999px;
  display:flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  background: var(--primary);
  color: #fff;
  font-size: 24px;
  box-shadow: 0 14px 28px rgba(10,132,255,.22);
  transition: transform .18s ease, background .18s ease;
  z-index: 50;
}
.fab:hover{ background: var(--primary-hover); transform: translateY(-2px); }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: var(--primary);
  color:#fff;
  font-weight:800;
  cursor:pointer;
  text-decoration:none;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.btn:hover{
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(10,132,255,.22);
}
.btn--ghost{
  background: #fff;
  color: var(--text-main);
  border-color: var(--border-color);
  box-shadow: none;
}
.btn--ghost:hover{
  background: var(--bg-section);
  transform: translateY(-1px);
  box-shadow: none;
}
.btn--small{ padding:10px 12px; font-weight:800; }

.pill{
  display:inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: #fff;
  color: var(--text-muted);
  font-weight:700;
  font-size: 13px;
}

.hero{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
  padding-top: 22px;
  padding-bottom: 10px;
}
.hero h1{ margin: 10px 0 8px; font-size: 44px; letter-spacing: -.03em; line-height:1.05; }
.hero__sub{ margin:0 0 16px; color: var(--text-muted); font-size:16px; line-height:1.6; }
.hero__cta{ display:flex; gap:12px; flex-wrap:wrap; margin-top: 10px; }

.mini{
  margin-top: 18px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.mini__item{
  border: 1px solid var(--border-color);
  background: #fff;
  border-radius: 16px;
  padding: 12px;
}
.mini__k{ display:block; color: var(--text-muted); font-size: 12px; font-weight:700; }
.mini__v{ display:block; margin-top: 6px; font-weight:800; font-size: 13px; }

.heroImg{
  width:100%;
  height:110px;
  object-fit:cover;
  border-radius:18px;
  border:1px solid var(--border-color);
}

.heroCard__top{ display:flex; align-items:center; gap:10px; }
.dot{ width:10px; height:10px; border-radius:999px; background: var(--primary); }
.heroCard__label{ color: var(--text-muted); font-weight:800; font-size: 13px; }
.heroCard__grid{
  margin-top: 14px;
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.ph{
  height: 110px;
  border-radius: 18px;
  background: radial-gradient(220px 120px at 30% 30%, rgba(10,132,255,.22), transparent 60%),
              linear-gradient(180deg, rgba(0,0,0,.04), rgba(0,0,0,.02));
  border: 1px solid var(--border-color);
}
.heroCard__hint{ margin: 12px 0 0; color: var(--text-muted); font-size: 13px; line-height:1.5; }

.section{ padding: 38px 0; }
.section--alt{ background: var(--bg-section); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }

.section__head h2{ margin:0; font-size: 28px; letter-spacing: -.02em; }
.section__head p{ margin: 8px 0 0; color: var(--text-muted); line-height:1.6; }

.cards{
  margin-top: 16px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card{
  border: 1px solid var(--border-color);
  background: #fff;
  border-radius: 20px;
  overflow:hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover{ transform: translateY(-3px); box-shadow: 0 18px 40px rgba(0,0,0,.10); }
.card__img{
  height: 160px;
  background: radial-gradient(300px 160px at 30% 30%, rgba(10,132,255,.18), transparent 60%),
              linear-gradient(180deg, rgba(0,0,0,.03), rgba(0,0,0,.01));
}
.card__body{ padding: 14px; }
.card__body h3{ margin:0 0 6px; }
.card__body p{ margin:0 0 12px; color: var(--text-muted); line-height:1.5; }

.steps{
  margin-top: 16px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.step{
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 14px;
  display:flex;
  gap: 12px;
}
.step__n{
  width: 34px; height: 34px;
  border-radius: 12px;
  background: rgba(10,132,255,.12);
  border: 1px solid rgba(10,132,255,.25);
  display:flex; align-items:center; justify-content:center;
  font-weight: 900;
  color: #0b3a7a;
}
.step h3{ margin:0 0 6px; }
.step p{ margin:0; color: var(--text-muted); line-height:1.5; }

.socials{
  margin-top: 16px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.social{
  display:flex;
  gap: 12px;
  align-items:center;
  padding: 14px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: #fff;
  text-decoration:none;
  color: inherit;
  transition: transform .18s ease, box-shadow .18s ease;
}
.social:hover{ transform: translateY(-2px); box-shadow: 0 18px 40px rgba(0,0,0,.10); }
.social__icon{
  width: 42px; height: 42px;
  border-radius: 16px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(10,132,255,.12);
  border: 1px solid rgba(10,132,255,.25);
  font-size: 18px;
}
.social__title{ font-weight: 900; }
.social__sub{ color: var(--text-muted); font-size: 13px; margin-top: 2px; }

.footer{
  background: var(--dark-main);
  color: #fff;
  padding: 26px 0;
}
.footer__content{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 16px;
}
.footer__brand{ font-weight: 900; letter-spacing: .14em; font-size: 12px; }
.footer__muted{ margin-top: 8px; color: rgba(255,255,255,.75); }
.footer__links a{ color: rgba(255,255,255,.85); text-decoration:none; margin-left: 16px; }
.footer__links a:hover{ color: #fff; }

/* =========================
   REVEAL “DEGRADÉ” AL SCROLL
   ========================= */
.reveal{
  opacity: 0;
  transform: translateY(18px);
  filter: blur(8px);
  /* mask: hace el efecto “degradé” de abajo hacia arriba */
  -webkit-mask-image: linear-gradient(to top, transparent 0%, black 50%);
  mask-image: linear-gradient(to top, transparent 0%, black 50%);
  -webkit-mask-size: 100% 120%;
  mask-size: 100% 120%;
  -webkit-mask-position: 0 100%;
  mask-position: 0 100%;
}

.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
  -webkit-mask-position: 0 0;
  mask-position: 0 0;
  transition:
    opacity .65s ease,
    transform .65s ease,
    filter .65s ease,
    -webkit-mask-position .85s ease,
    mask-position .85s ease;
}

@media (max-width: 920px){
  .hero{ grid-template-columns: 1fr; }
  .cards, .steps, .socials{ grid-template-columns: 1fr; }
  .nav{ display:none; }
  .hero h1{ font-size: 38px; }
}