/* ===== Scroll Animation Base Styles ===== */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

/* Batch-delayed children (parent observer, no per-card JS) */
.stats-grid > :nth-child(1) { transition-delay: 0s; }
.stats-grid > :nth-child(2) { transition-delay: 0.08s; }
.stats-grid > :nth-child(3) { transition-delay: 0.16s; }
.stats-grid > :nth-child(4) { transition-delay: 0.24s; }
.stats-grid > :nth-child(5) { transition-delay: 0.32s; }
.stats-grid > :nth-child(6) { transition-delay: 0.40s; }

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

.fade-in {
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.slide-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.slide-left.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.slide-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.slide-right.animate-in {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delay helpers */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }

/* ===== Scale-in entrance animation ===== */
.scale-in {
  opacity: 0;
  transform: scale(0.92) translateY(24px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.scale-in.animate-in {
  opacity: 1;
  transform: scale(1) translateY(0);
}