/* =========================================================
   Shared animation keyframes + scroll-reveal utility classes
   Powered by a tiny IntersectionObserver in js/app.js
   (no external animation library required)
   ========================================================= */

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out-soft), transform 0.7s var(--ease-out-soft);
  will-change: opacity, transform;
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal="fade"] { transform: none; }
[data-reveal="left"] { transform: translateX(-28px); }
[data-reveal="left"].is-revealed { transform: translateX(0); }
[data-reveal="right"] { transform: translateX(28px); }
[data-reveal="right"].is-revealed { transform: translateX(0); }
[data-reveal="scale"] { transform: scale(0.92); }
[data-reveal="scale"].is-revealed { transform: scale(1); }

/* On mobile these blocks are full-width (col-12), so a sideways translate
   pushes them past the viewport edge and creates a horizontal scroll. Reveal
   them vertically instead - the horizontal slide is only worthwhile in the
   multi-column desktop layouts. */
@media (max-width: 991.98px) {
  [data-reveal="left"],
  [data-reveal="right"] { transform: translateY(24px); }
  [data-reveal="left"].is-revealed,
  [data-reveal="right"].is-revealed { transform: translateY(0); }
}

/* Stagger children automatically via inline --reveal-delay custom property */
[data-reveal] { transition-delay: var(--reveal-delay, 0s); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ---------- Keyframes ---------- */
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
.animate-float { animation: float-y 5s ease-in-out infinite; }

@keyframes float-y-slow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}
.animate-float-slow { animation: float-y-slow 7s ease-in-out infinite; }

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.55); }
  70% { box-shadow: 0 0 0 14px rgba(var(--color-accent-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0); }
}
.animate-pulse-ring { animation: pulse-ring 2.2s infinite; }

@keyframes spin { to { transform: rotate(360deg); } }
.animate-spin { animation: spin 1s linear infinite; }

@keyframes shimmer {
  0% { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
.animate-shimmer {
  background: linear-gradient(90deg, var(--color-gray-100) 0%, #fff 50%, var(--color-gray-100) 100%);
  background-size: 800px 100%;
  animation: shimmer 1.6s infinite linear;
}

@keyframes gradient-pan {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.animate-gradient-pan {
  background-size: 200% 200%;
  animation: gradient-pan 8s ease infinite;
}

@keyframes pop-in {
  0% { opacity: 0; transform: scale(0.6); }
  70% { opacity: 1; transform: scale(1.06); }
  100% { opacity: 1; transform: scale(1); }
}
.animate-pop-in { animation: pop-in 0.55s var(--ease-out-back) both; }

@keyframes check-draw {
  from { stroke-dashoffset: 48; }
  to { stroke-dashoffset: 0; }
}
.animate-check-draw {
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: check-draw 0.6s 0.15s var(--ease-out-soft) forwards;
}

@keyframes fade-slide-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-slide-up { animation: fade-slide-up 0.5s var(--ease-out-soft) both; }

@keyframes confetti-fall {
  0% { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(160px) rotate(280deg); opacity: 0; }
}
.confetti-piece {
  position: absolute;
  top: 0;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  animation: confetti-fall 1.4s ease-in forwards;
}

@media (prefers-reduced-motion: reduce) {
  .animate-float, .animate-float-slow, .animate-pulse-ring, .animate-gradient-pan, .confetti-piece, .animate-fade-slide-up {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}