/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ANIMATIONS — Scroll-triggered, transitions
   Uses IntersectionObserver (no AOS library)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* Elements with [data-animate] start hidden */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .68s cubic-bezier(0, .55, .45, 1),
              transform .68s cubic-bezier(0, .55, .45, 1);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Directional variants */
[data-animate="fade-right"] {
  transform: translateX(-24px);
}

[data-animate="fade-right"].is-visible {
  transform: translateX(0);
}

[data-animate="fade-left"] {
  transform: translateX(24px);
}

[data-animate="fade-left"].is-visible {
  transform: translateX(0);
}

[data-animate="fade-up"] {
  transform: translateY(24px);
}

[data-animate="fade-up"].is-visible {
  transform: translateY(0);
}

/* Stagger delays for grid children */
[data-animate-stagger] > [data-animate]:nth-child(1) { transition-delay: 0s; }
[data-animate-stagger] > [data-animate]:nth-child(2) { transition-delay: .08s; }
[data-animate-stagger] > [data-animate]:nth-child(3) { transition-delay: .16s; }
[data-animate-stagger] > [data-animate]:nth-child(4) { transition-delay: .24s; }
[data-animate-stagger] > [data-animate]:nth-child(5) { transition-delay: .32s; }
[data-animate-stagger] > [data-animate]:nth-child(6) { transition-delay: .4s; }

/* Respect user preferences */
@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Disable animations on mobile for performance */
@media (max-width: 768px) {
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}