/* ==========================================================================
   Animations — Scroll reveals, transitions, hover states
   Powered by IntersectionObserver (see js/scroll-animations.js)
   ========================================================================== */

/* ---- Scroll Reveal Base ---- */
/* Elements start hidden, JS adds .is-visible when they enter viewport */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children: add .reveal-stagger to parent, .reveal to each child */
.reveal-stagger .reveal:nth-child(1) { transition-delay: 0s; }
.reveal-stagger .reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal-stagger .reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal-stagger .reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal-stagger .reveal:nth-child(5) { transition-delay: 0.32s; }

/* ---- Fade In (no transform) ---- */
.reveal--fade {
  opacity: 0;
  transform: none;
  transition: opacity var(--transition-slow);
}

.reveal--fade.is-visible {
  opacity: 1;
}

/* ---- Slide from left ---- */
.reveal--left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal--left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* ---- Slide from right ---- */
.reveal--right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal--right.is-visible {
  opacity: 1;
  transform: translateX(0);
}


/* ---- Hover Utilities ---- */

/* Image zoom on hover — apply to container with overflow:hidden, img gets the transform */
.hover-zoom img {
  transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.hover-zoom:hover img {
  transform: scale(1.03);
}

/* Card lift — gentle lift + shadow on hover */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(12, 16, 19, 0.12);
}

/* CTA arrow nudge — ::after arrow slides right on hover */
.hover-arrow::after {
  display: inline-block;
  transition: transform var(--transition-base);
}

.hover-arrow:hover::after {
  transform: translateX(4px);
}


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

  .hover-zoom img,
  .hover-lift,
  .hover-arrow::after {
    transition: none;
  }

  .hover-zoom:hover img {
    transform: none;
  }

  .hover-lift:hover {
    transform: none;
    box-shadow: none;
  }

  .hover-arrow:hover::after {
    transform: none;
  }
}