/* ==========================================================================
   Vectra IA Lab — Estilos de la página de Inicio
   ========================================================================== */

/* ---------- Hero (fondo oscuro: identidad "laboratorio", alto contraste) ---------- */
.hero {
  position: relative;
  overflow: hidden;
  color: #eaf2fb;
  background:
    radial-gradient(760px 480px at 82% 8%, rgba(30,151,206,0.28), transparent 62%),
    radial-gradient(620px 420px at 6% 96%, rgba(30,151,206,0.14), transparent 60%),
    linear-gradient(155deg, #022244 0%, #022A55 48%, #01305f 100%);
  min-height: clamp(76vh, 80vh, 88vh);
  display: flex;
  align-items: center;
  padding-block: clamp(var(--sp-6), 7vw, var(--sp-10));
}
/* Malla de puntos tenue (motivo de la red de nodos) */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.08) 1.2px, transparent 1.2px);
  background-size: 26px 26px;
  mask-image: radial-gradient(70% 70% at 70% 20%, #000 10%, transparent 75%);
  -webkit-mask-image: radial-gradient(70% 70% at 70% 20%, #000 10%, transparent 75%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(var(--sp-4), 5vw, var(--sp-8));
}
@media (max-width: 880px) {
  .hero { min-height: auto; }
  .hero__grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .hero__visual { order: -1; max-width: 420px; margin-inline: auto; }
}

.hero h1 { color: #ffffff; margin-bottom: var(--sp-2); }
.hero__sub {
  font-family: var(--font-titulo);
  font-weight: 600;
  font-size: clamp(1.15rem, 1rem + 1vw, 1.5rem);
  color: #57c3ef;
  line-height: 1.3;
  margin-bottom: var(--sp-3);
  max-width: 40ch;
}
.hero__texto { color: #d2e2f2; max-width: 52ch; }
.hero__acciones {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  align-items: center;
  margin-top: var(--sp-4);
}
.hero__cta-wrap { display: flex; flex-direction: column; }
.hero .cta-nota { color: rgba(234,242,251,0.72); }

/* CTA principal sobre fondo oscuro: azul brillante con texto oscuro (alto contraste) */
.hero .btn--principal {
  background: var(--color-azul);
  border-color: var(--color-azul);
  color: #012042;
}
.hero .btn--principal:hover {
  background: #44b4e4;
  border-color: #44b4e4;
  color: #012042;
}
.hero .btn--secundario {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.55);
}
.hero .btn--secundario:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  color: #fff;
}

/* Red decorativa del hero */
.hero__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}
.hero__visual-card {
  position: relative;
  width: 100%;
  max-width: 460px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
  backdrop-filter: blur(4px);
  padding: var(--sp-4);
  overflow: hidden;
}
.hero__visual-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(400px 220px at 70% 0%, rgba(30,151,206,0.22), transparent 70%);
  pointer-events: none;
}

/* Chips de líneas de solución en la tarjeta del hero */
.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--sp-3);
  position: relative;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: rgba(30,151,206,0.14);
  color: #eaf2fb;
  border: 1px solid rgba(87,195,239,0.4);
}
.chip svg { width: 15px; height: 15px; color: #57c3ef; }

.hero__iso-grande {
  width: 100%;
  max-width: 300px;
  margin-inline: auto;
  display: block;
  position: relative;
}

/* ---------- Bloque problema (lista) ---------- */
.problema-lista {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
  max-width: var(--contenedor-texto);
}
.problema-lista li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: var(--sp-2);
  background: #fff;
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  margin: 0;
}
.problema-lista svg {
  width: 24px; height: 24px;
  color: var(--color-azul);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---------- Principio rector (pasos) ---------- */
.principios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-3);
  counter-reset: paso;
}
.principio {
  background: #fff;
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: var(--sp-3);
  border-top: 4px solid var(--color-azul);
}
.principio h3 { margin-bottom: 0.4rem; }

/* ---------- Líneas de solución ---------- */
.linea-card { display: flex; flex-direction: column; height: 100%; }
.linea-card .badge { align-self: flex-start; margin-top: var(--sp-2); }
.linea-card__ej {
  font-size: var(--fs-small);
  color: var(--color-texto);
  margin-top: 0.6rem;
}

/* Acento de color por línea (derivado de paleta) */
.linea-card[data-linea="1"] .tarjeta-icono { background: #e9f6fc; color: #1E97CE; }
.linea-card[data-linea="2"] .tarjeta-icono { background: #e6eef7; color: #022A55; }
.linea-card[data-linea="3"] .tarjeta-icono { background: #eaf6fc; color: #187aa8; }
.linea-card[data-linea="4"] .tarjeta-icono { background: #e9f6fc; color: #1E97CE; }

/* ---------- Confianza ---------- */
.confianza-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-3);
}
.confianza-item { display: flex; gap: 0.9rem; align-items: flex-start; }
.confianza-item svg {
  width: 32px; height: 32px;
  color: var(--color-azul);
  flex-shrink: 0;
}
.confianza-item h3 { font-size: 1.1rem; margin-bottom: 0.3rem; }
.confianza-item p { font-size: var(--fs-small); }

/* ---------- CTA final ---------- */
.cta-final {
  text-align: center;
}
.cta-final .lista-check {
  display: inline-grid;
  gap: 0.5rem;
  text-align: left;
  margin: var(--sp-3) auto var(--sp-4);
  max-width: 560px;
}
.cta-caja {
  background: linear-gradient(135deg, var(--color-azul-oscuro), #023a74);
  border-radius: 20px;
  padding: clamp(var(--sp-4), 5vw, var(--sp-8));
  color: #fff;
  text-align: center;
}
.cta-caja h2, .cta-caja h3 { color: #fff; }
.cta-caja .eyebrow { color: var(--color-azul); }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}