/**
 * ANIMATIONS & MICRO-INTERACTIONS MODERNES (Style Sorbonne)
 */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes pulseGold {
  0% { box-shadow: 0 0 0 0 rgba(174, 70, 173, 0.45); }
  70% { box-shadow: 0 0 0 12px rgba(174, 70, 173, 0); }
  100% { box-shadow: 0 0 0 0 rgba(174, 70, 173, 0); }
}

@keyframes shimmerEffect {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-float {
  animation: floatBadge 4s ease-in-out infinite;
}

.pulse-gold {
  animation: pulseGold 2s infinite;
}

/* Éléments révélés au défilement (Intersection Observer) */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Micro-interaction sur les boutons */
.btn, .quick-card, .doc-card, .news-card, .school-box {
  will-change: transform;
}