/* ==========================================================================
   Animations — keyframes + scroll-reveal utility classes
   Kept lightweight and GPU-friendly (transform/opacity only).
   ========================================================================== */

@keyframes ripple-anim {
  to { transform: scale(3); opacity: 0; }
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(21,128,61,0.35); }
  50% { box-shadow: 0 0 0 6px rgba(21,128,61,0); }
}

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* Scroll-reveal: elements start hidden, JS toggles .is-visible on intersection */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow, 450ms) var(--ease-standard, ease), transform var(--dur-slow, 450ms) var(--ease-standard, ease);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  transition-delay: calc(var(--stagger-index, 0) * 70ms);
}

.float-el {
  animation: float-y 4.5s ease-in-out infinite;
}

.hero-float-card--top { animation: float-y 5s ease-in-out infinite; }
.hero-float-card--bottom { animation: float-y 6s ease-in-out infinite reverse; }

/* Page load fade */
.page-transition-in {
  animation: fade-in-up 500ms var(--ease-standard, ease) both;
}

/* Loading spinner */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
  display: inline-block;
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  .float-el, .hero-float-card--top, .hero-float-card--bottom { animation: none; }
}