/* ---------------------------------------------------------
   ANIMATIONS · keyframes, scroll-reveal, transiciones, hover
--------------------------------------------------------- */

@keyframes hint-pulse {
  0%,
  100% {
    opacity: 0.3;
    transform: scaleX(1);
  }
  50% {
    opacity: 1;
    transform: scaleX(1.4);
  }
}

@keyframes float-soft {
  0%,
  100% {
    transform: translateY(0) rotate(-2deg);
  }
  50% {
    transform: translateY(-8px) rotate(-2deg);
  }
}

.hero-float-card {
  animation: float-soft 5s ease-in-out infinite;
}

@keyframes float-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-soft), transform 0.7s var(--ease-soft);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.is-visible .stagger-child:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.is-visible .stagger-child:nth-child(2) { transition-delay: 0.12s; }
.reveal-stagger.is-visible .stagger-child:nth-child(3) { transition-delay: 0.19s; }
.reveal-stagger.is-visible .stagger-child:nth-child(4) { transition-delay: 0.26s; }

.stagger-child {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s var(--ease-soft), transform 0.6s var(--ease-soft);
}

.reveal-stagger.is-visible .stagger-child {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .hero-float-card,
  .back-to-top {
    animation: none;
  }

  .reveal,
  .stagger-child {
    opacity: 1;
    transform: none;
    transition: none;
  }
}