:root{
  --bg0:#0b0e12;
  --bg1:#0f1319;

  --text:#eaf0ff;
  --muted: rgba(234,240,255,.70);

  /* pasteles controlados */
  --cyan: rgba(168, 239, 255, .55);
  --mint: rgba(191, 242, 214, .55);
  --pink: rgba(255, 214, 231, .55);
  --lilac: rgba(197, 182, 255, .55);

  --accent: #a9c7ff;
  --accent-strong:#7aa7ff;

  --radius: 18px;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1000px 600px at 15% 0%, rgba(122,167,255,.10), transparent 55%),
    radial-gradient(900px 600px at 85% 10%, rgba(191,242,214,.08), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  min-height: 100vh;
}

a{ color:inherit; text-decoration:none; }

.container{ width:min(1040px, 92%); margin:0 auto; }
.narrow{ width:min(780px, 92%); margin:0 auto; }

/* evita que el header tape los títulos al navegar por anchors */
section{ scroll-margin-top: 96px; }

/* header */
.header{
  position: sticky;
  top:0;
  z-index: 20;
  background: rgba(11,14,18,.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 16px 0;
  gap: 14px;
}
.brand{
  font-weight: 650;
  letter-spacing: .2px;
  white-space: nowrap;
}
.nav{
  display:flex;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav a{
  font-size: 14px;
  color: rgba(234,240,255,.75);
  padding: 8px 10px;
  border-radius: 999px;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.nav a:hover{
  background: rgba(255,255,255,.05);
  color: rgba(234,240,255,.95);
}
.nav a.active{
  color: rgba(234,240,255,.95);
  background: rgba(255,255,255,.05);
}
.nav .pill{
  border: 1px solid rgba(169,199,255,.30);
  background: rgba(169,199,255,.10);
}

/* sections */
.section{
  padding: 64px 0;
}

/* pantalla completa (desktop/tablet) */
.section-screen{
  min-height: 100vh;
  display: flex;
  align-items: center;
}

/* hero */
.hero{
  position: relative;
  overflow: clip;
}
.hero-inner{
  max-width: 820px;
  padding: 96px 0 56px;
}

h1{
  font-size: clamp(40px, 5.4vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.lead{
  margin-top: 14px;
  font-size: 18px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 62ch;
}

.cred{
  margin-top: 16px;
  font-size: 13px;
  color: rgba(234,240,255,.52);
}

/* buttons */
.cta{
  margin-top: 22px;
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 650;
  border: 1px solid transparent;
  transition: transform .12s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn:active{ transform: translateY(1px); }

.btn.primary{
  background: linear-gradient(135deg, rgba(169,199,255,.95), rgba(122,167,255,.95));
  color: rgba(11,14,18,.92);
  box-shadow: 0 16px 50px rgba(122,167,255,.16);
}
.btn.primary:hover{
  box-shadow: 0 20px 65px rgba(122,167,255,.22);
}

.btn.ghost{
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.12);
  color: rgba(234,240,255,.88);
}
.btn.ghost:hover{ background: rgba(255,255,255,.06); }

/* texts */
.section h2{
  font-size: 26px;
  letter-spacing: -0.02em;
}
.text{
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 16px;
}
.bullets{
  margin-top: 18px;
  padding-left: 18px;
  color: rgba(234,240,255,.80);
}
.bullets li{ margin: 10px 0; }

.soft{
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.02);
}

.quote{
  margin-top: 16px;
  padding-left: 14px;
  border-left: 3px solid rgba(169,199,255,.40);
  color: rgba(234,240,255,.72);
}

/* contacto */
.section-contact .contact-lead{
  max-width: 62ch;
}
.contact-cta{
  margin-top: 18px;
}

/* footer */
.site-footer{
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 26px 0;
  background: rgba(11,14,18,.85);
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  font-size:13px;
  color: rgba(234,240,255,.55);
  flex-wrap:wrap;
}
.site-footer a{
  color: rgba(234,240,255,.65);
}
.site-footer a:hover{
  color: rgba(234,240,255,.95);
}

/* background shapes */
.bg-shapes{
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity: .55;
}
.shape{
  position:absolute;
  filter: blur(24px);
  transform: translateZ(0);
  border-radius: 999px;
}
.s1{
  width: 520px; height: 520px;
  left: -180px; top: -220px;
  background: radial-gradient(circle at 30% 30%, var(--cyan), transparent 55%);
}
.s2{
  width: 540px; height: 540px;
  right: -210px; top: -160px;
  background: radial-gradient(circle at 40% 40%, var(--pink), transparent 58%);
}
.s3{
  width: 520px; height: 520px;
  left: 35%; top: 40%;
  background: radial-gradient(circle at 40% 40%, var(--mint), transparent 58%);
  opacity: .38;
}
.s4{
  width: 420px; height: 420px;
  right: 10%; top: 55%;
  background: radial-gradient(circle at 40% 40%, var(--lilac), transparent 60%);
  opacity: .28;
}

/* responsive */
@media (max-width: 820px){
  .header-inner{
    flex-wrap: wrap;
  }
}

/* mobile: evitar problemas de 100vh y acomodar jerarquía */
@media (max-width: 768px){
  .section-screen{
    min-height: auto;      /* evita bug de vh en mobile */
    display: block;
    padding: 72px 0;       /* mantiene “sección” sin pegote */
  }

  .hero-inner{
    padding: 72px 0 42px;
  }
}

/* mobile pequeño */
@media (max-width: 520px){
  h1{
    font-size: 36px;
    line-height: 1.1;
  }

  .lead{
    font-size: 16px;
  }

  .cred{
    display: none;
  }

  .cta{
    flex-direction: column;
  }

  .btn{
    width: 100%;
  }
}