/* ============================================================
   IC7 Game — Animations & keyframes
   Reveal utilities are toggled by scroll-reveal.js (.is-visible)
   ============================================================ */

/* ---------- Keyframes ---------- */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(225,6,0,0.55), var(--shadow-glow-red); }
  50%      { box-shadow: 0 0 0 10px rgba(225,6,0,0), var(--shadow-glow-red-strong); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-16px); }
}

@keyframes ember-drift {
  0%   { transform: translateY(0) translateX(0) scale(1); opacity: 0; }
  10%  { opacity: 0.9; }
  90%  { opacity: 0.5; }
  100% { transform: translateY(-120px) translateX(var(--drift, 20px)) scale(0.3); opacity: 0; }
}

@keyframes bg-pan {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes glow-breathe {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50%      { opacity: 1; transform: scale(1.06); }
}

@keyframes shimmer-sweep {
  0%   { transform: translateX(-140%) skewX(-18deg); }
  100% { transform: translateX(260%) skewX(-18deg); }
}

@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes spin-slow { to { transform: rotate(360deg); } }

@keyframes pop-in {
  0%   { transform: scale(0.9); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* ---------- Scroll-reveal utilities ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

.reveal-left  { opacity: 0; transform: translateX(-40px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
.reveal-right { opacity: 0; transform: translateX(40px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
.reveal-scale { opacity: 0; transform: scale(0.94);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
.reveal-left.is-visible, .reveal-right.is-visible, .reveal-scale.is-visible {
  opacity: 1; transform: none;
}

/* Stagger children when parent gets .is-visible */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}
[data-stagger].is-visible > * { opacity: 1; transform: none; }
[data-stagger].is-visible > *:nth-child(1)  { transition-delay: 40ms; }
[data-stagger].is-visible > *:nth-child(2)  { transition-delay: 90ms; }
[data-stagger].is-visible > *:nth-child(3)  { transition-delay: 140ms; }
[data-stagger].is-visible > *:nth-child(4)  { transition-delay: 190ms; }
[data-stagger].is-visible > *:nth-child(5)  { transition-delay: 240ms; }
[data-stagger].is-visible > *:nth-child(6)  { transition-delay: 290ms; }
[data-stagger].is-visible > *:nth-child(7)  { transition-delay: 340ms; }
[data-stagger].is-visible > *:nth-child(8)  { transition-delay: 390ms; }
[data-stagger].is-visible > *:nth-child(n+9){ transition-delay: 430ms; }

/* ---------- Animated glow layer helper ---------- */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  animation: glow-breathe 7s var(--ease-in-out) infinite;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal, .reveal-left, .reveal-right, .reveal-scale,
  [data-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
  }
  .glow-orb, .ember, .marquee__track { animation: none !important; }
}