/* ==========================================================================
   Animation — reveal states, keyframes, reduced-motion overrides
   ========================================================================== */

/* ---- Generic scroll reveal ----
   Elements start visible by default (progressive enhancement). JS adds
   .js-armed only once IntersectionObserver is live, then toggles .is-visible. */
.reveal.js-armed {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

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

.reveal-fade.js-armed {
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-out);
}

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

.reveal-line.js-armed {
  opacity: 0;
  transform: translateY(0.5em);
  transition: opacity var(--dur-med) var(--ease-out),
              transform var(--dur-med) var(--ease-out);
}

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

/* Stagger children of a group via inline --i custom property */
.reveal-group.js-armed > * {
  transition-delay: calc(var(--i, 0) * 90ms);
}

@keyframes float-slow {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -18px, 0); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@keyframes scroll-indicator {
  0% { transform: translateY(0); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

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

.animate-float {
  animation: float-slow 7s var(--ease-in-out) infinite;
}

.animate-pulse {
  animation: pulse-glow 3.5s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal.js-armed,
  .reveal-fade.js-armed,
  .reveal-line.js-armed {
    opacity: 1;
    transform: none;
  }
}