/* ═══════════════════════════════════════════════
   Alter Formación — Custom Styles
   Corporate gradient: #FC575D → #8D52FC
═══════════════════════════════════════════════ */

/* ── Scroll-driven fade-in ── */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Stagger children ── */
.stagger > .fade-up:nth-child(2) { transition-delay: 0.1s; }
.stagger > .fade-up:nth-child(3) { transition-delay: 0.2s; }
.stagger > .fade-up:nth-child(4) { transition-delay: 0.3s; }

/* ── Mobile nav ── */
#mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

#mobile-menu.open {
  max-height: 400px;
}

/* ── Hero gradient mesh (corporate gradient) ── */
.hero-mesh {
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(141, 82, 252, 0.10) 0%, transparent 70%),
    radial-gradient(ellipse 60% 60% at 100% 0%, rgba(252, 87, 93, 0.07) 0%, transparent 60%);
}

/* ── Corporate gradient utilities ── */
.gradient-text {
  background: linear-gradient(135deg, #FC575D 0%, #8D52FC 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-bg {
  background: linear-gradient(135deg, #FC575D 0%, #8D52FC 100%);
}

.gradient-bg-hover:hover {
  background: linear-gradient(135deg, #e8484e 0%, #7a42e8 100%);
}

.gradient-border {
  border-image: linear-gradient(135deg, #FC575D, #8D52FC) 1;
}

/* ── Gradient icon container ── */
.icon-gradient {
  background: linear-gradient(135deg, #FC575D 0%, #8D52FC 100%);
}

/* ── Smooth scroll ── */
html {
  scroll-behavior: smooth;
}

/* ── Focus visible outline for accessibility ── */
:focus-visible {
  outline: 2px solid #8D52FC;
  outline-offset: 2px;
}

/* ── Selection color ── */
::selection {
  background: rgba(141, 82, 252, 0.15);
  color: #1E293B;
}