/* ============================================================
   Animations — website-template
   Scroll-triggered fade/slide animations + card hover effects.
   JS adds .is-visible to trigger each animation.
   ============================================================ */

/* ----------------------------------------------------------
   Fade Up — primary entry animation
   ---------------------------------------------------------- */

.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* ----------------------------------------------------------
   Fade In — pure opacity reveal
   ---------------------------------------------------------- */

.animate-fade-in {
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.animate-fade-in.is-visible {
  opacity: 1;
}

/* ----------------------------------------------------------
   Scale Up — subtle zoom reveal
   ---------------------------------------------------------- */

.animate-scale-up {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-scale-up.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* ----------------------------------------------------------
   Fade Left / Right — slide in from sides
   ---------------------------------------------------------- */

.animate-fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-fade-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.animate-fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-fade-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* ----------------------------------------------------------
   Staggered Children — set --stagger-index via JS
   ---------------------------------------------------------- */

.stagger > * {
  transition-delay: calc(var(--stagger-index, 0) * 0.1s);
}

/* ----------------------------------------------------------
   Card Hover
   ---------------------------------------------------------- */

.card {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

/* ----------------------------------------------------------
   Pulse — accent glow pulse (for CTA badges, indicators)
   ---------------------------------------------------------- */

@keyframes pulse-accent {
  0%, 100% { box-shadow: 0 0 0 0 var(--color-accent-light); }
  50%       { box-shadow: 0 0 0 8px transparent; }
}

.animate-pulse {
  animation: pulse-accent 2s ease-in-out infinite;
}

/* ----------------------------------------------------------
   Shimmer — loading skeleton effect
   ---------------------------------------------------------- */

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

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-alt) 25%,
    rgba(255, 255, 255, 0.05) 50%,
    var(--color-bg-alt) 75%
  );
  background-size: 200% auto;
  animation: shimmer 1.5s linear infinite;
  border-radius: var(--radius-sm);
}

/* ----------------------------------------------------------
   Respect reduced-motion
   ---------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .animate-fade-up,
  .animate-fade-in,
  .animate-scale-up,
  .animate-fade-left,
  .animate-fade-right {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card:hover {
    transform: none;
  }

  .animate-pulse {
    animation: none;
  }

  .skeleton {
    animation: none;
    background: var(--color-bg-alt);
  }
}