/* ============================================
   ANIMATIONS — Scroll reveals & Effects
   ============================================ */

/* ── Fade In Up (scroll reveal) ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ── Scroll-triggered elements ── */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* ── Cursor Glow Effect ── */
.cursor-glow {
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    var(--accent-glow),
    transparent 40%
  );
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 30;
}

/* ── Hover lift ── */
.hover-lift {
  transition: transform var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-2px);
}

/* ── Link underline animation ── */
.animated-underline {
  position: relative;
  display: inline;
}

.animated-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.animated-underline:hover::after {
  width: 100%;
}

/* ── Reduce motion preference ── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }

  .cursor-glow {
    display: none;
  }
}