/* ==========================================================================
   LONGBOURN PAPERS — Animations
   GSAP-triggered classes + scroll reveal states
   ========================================================================== */

/* ── Reveal animations (GSAP sets initial state) ─────────────────── */

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out);
}

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

[data-animate="fade"] {
  transform: none;
}

[data-animate="slide-up"] {
  transform: translateY(30px);
}

[data-animate="slide-left"] {
  transform: translateX(-30px);
}

[data-animate="slide-right"] {
  transform: translateX(30px);
}

[data-animate="scale"] {
  transform: scale(0.95);
}

/* Stagger children */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
}

[data-stagger].is-visible > * {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out);
}

[data-stagger].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-stagger].is-visible > *:nth-child(2) { transition-delay: 100ms; }
[data-stagger].is-visible > *:nth-child(3) { transition-delay: 200ms; }
[data-stagger].is-visible > *:nth-child(4) { transition-delay: 300ms; }
[data-stagger].is-visible > *:nth-child(5) { transition-delay: 400ms; }
[data-stagger].is-visible > *:nth-child(6) { transition-delay: 500ms; }

/* ── Hero animations ─────────────────────────────────────────────── */

.hero__title span {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out),
              transform 0.8s var(--ease-out);
}

.hero.is-loaded .hero__title span {
  opacity: 1;
  transform: translateY(0);
}

.hero__subtitle {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out) 0.4s,
              transform 0.6s var(--ease-out) 0.4s;
}

.hero.is-loaded .hero__subtitle {
  opacity: 1;
  transform: translateY(0);
}

.hero__cta {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out) 0.6s,
              transform 0.6s var(--ease-out) 0.6s;
}

.hero.is-loaded .hero__cta {
  opacity: 1;
  transform: translateY(0);
}

/* ── Parallax ────────────────────────────────────────────────────── */

[data-parallax] {
  will-change: transform;
}

/* ── Hover micro-interactions ────────────────────────────────────── */

.btn--primary {
  position: relative;
  overflow: hidden;
}

.btn--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(-100%);
  transition: transform var(--duration-base) var(--ease-out);
}

.btn--primary:hover::after {
  transform: translateX(0);
}

/* Add to cart pulse */
@keyframes cart-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.cart-count.pulse {
  animation: cart-pulse 0.4s var(--ease-spring);
}

/* ── Image reveal ────────────────────────────────────────────────── */

.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-cream);
  transform-origin: right;
  transition: transform 0.8s var(--ease-in-out);
}

.img-reveal.is-visible::after {
  transform: scaleX(0);
}

/* ── Reduced motion ──────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  [data-animate],
  [data-stagger] > *,
  .hero__title span,
  .hero__subtitle,
  .hero__cta {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .img-reveal::after {
    display: none;
  }
}