/* Scroll-driven animations — Apple-style reveals */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-fade {
  opacity: 0;
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-fade.is-visible {
  opacity: 1;
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.97) translateY(16px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-scale.is-visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delays for children */
.stagger > *:nth-child(1) { transition-delay: 0ms; }
.stagger > *:nth-child(2) { transition-delay: 80ms; }
.stagger > *:nth-child(3) { transition-delay: 160ms; }
.stagger > *:nth-child(4) { transition-delay: 240ms; }
.stagger > *:nth-child(5) { transition-delay: 320ms; }
.stagger > *:nth-child(6) { transition-delay: 400ms; }

/* Line reveal */
.reveal-line { overflow: hidden; }
.reveal-line span {
  display: block;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-line.is-visible span {
  opacity: 1;
  transform: translateY(0);
}

/* Number counter */
.reveal-number {
  opacity: 0;
  transition: opacity 0.5s ease;
}
.reveal-number.is-visible {
  opacity: 1;
}

/* Parallax */
.parallax-slow {
  will-change: transform;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-fade, .reveal-scale, .reveal-left, .reveal-right,
  .reveal-line span, .reveal-number {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}