/* ========================================
   Scroll Animations
   ======================================== */
.fade-in,
.fade-up {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in { transform: none; }
.fade-up  { transform: translateY(24px); }

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

/* Delay helpers */
.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }
.delay-3 { transition-delay: 0.36s; }

/* ========================================
   Scroll Line (Hero)
   ======================================== */
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  .fade-in, .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero__scroll-line { animation: none; }
}