/* Fade-in from below — auto-reveal fallback if JS doesn't fire */
@keyframes fade-in-fallback {
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-gentle), transform var(--transition-gentle);
  animation: fade-in-fallback 0.6s ease forwards;
  animation-delay: 0.3s;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  animation: none;
}

/* Staggered children */
.fade-in-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-gentle), transform var(--transition-gentle);
}

.fade-in-stagger.visible > *:nth-child(1) { transition-delay: 0ms; }
.fade-in-stagger.visible > *:nth-child(2) { transition-delay: 100ms; }
.fade-in-stagger.visible > *:nth-child(3) { transition-delay: 200ms; }
.fade-in-stagger.visible > *:nth-child(4) { transition-delay: 300ms; }
.fade-in-stagger.visible > *:nth-child(5) { transition-delay: 400ms; }

.fade-in-stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Scroll indicator bounce */
@keyframes gentle-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

.scroll-hint {
  animation: gentle-bounce 2s ease-in-out infinite;
}

/* Gold line grow */
@keyframes line-grow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.gold-line {
  height: 2px;
  background: var(--gradient-gold-line);
  transform-origin: center;
}

.gold-line.visible {
  animation: line-grow 1s var(--transition-gentle) forwards;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .fade-in-stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .scroll-hint {
    animation: none;
  }

  .gold-line.visible {
    animation: none;
    transform: scaleX(1);
  }
}