/* ============================================
   INSTITUT DÉESSE - Animations
   ============================================ */

/* === ANIMATIONS AU SCROLL === */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}

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

/* Stagger pour les éléments multiples */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.6s var(--ease-out);
}

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

.stagger-item:nth-child(1) { transition-delay: 0s; }
.stagger-item:nth-child(2) { transition-delay: 0.1s; }
.stagger-item:nth-child(3) { transition-delay: 0.2s; }
.stagger-item:nth-child(4) { transition-delay: 0.3s; }
.stagger-item:nth-child(5) { transition-delay: 0.4s; }
.stagger-item:nth-child(6) { transition-delay: 0.5s; }

/* === HERO ANIMATIONS === */

.hero__surtitre {
  opacity: 0;
  transform: translateY(-20px);
  animation: slideDown 0.6s var(--ease-out) 0.2s forwards;
}

.hero__title {
  opacity: 0;
  transform: translateY(30px);
  animation: slideUp 0.6s var(--ease-out) 0.4s forwards;
}

.hero__subtitle {
  opacity: 0;
  animation: fadeIn 0.6s var(--ease-out) 0.6s forwards;
}

.hero__baseline {
  opacity: 0;
  animation: fadeIn 0.6s var(--ease-out) 0.8s forwards;
}

.hero__cta {
  opacity: 0;
  transform: scale(0.9);
  animation: scaleIn 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55) 1s forwards;
}

@keyframes slideDown {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* === HOVER ANIMATIONS === */

/* Boutons */
.btn {
  position: relative;
  overflow: hidden;
}

.btn--primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s var(--ease-smooth);
}

.btn--primary:hover::before {
  left: 100%;
}

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

@keyframes wipeIn {
  from { transform: scaleY(0); transform-origin: bottom; }
  to { transform: scaleY(1); transform-origin: bottom; }
}

@keyframes wipeOut {
  from { transform: scaleY(1); transform-origin: top; }
  to { transform: scaleY(0); transform-origin: top; }
}

/* === REDUCED MOTION === */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .animate-on-scroll,
  .stagger-item {
    opacity: 1;
    transform: none;
  }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}