/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes float-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes scroll-dot {
  0% { opacity: 1; top: 6px; }
  70% { opacity: 0; top: 18px; }
  100% { opacity: 0; top: 6px; }
}

@keyframes twinkle {
  0%, 100% { opacity: var(--star-op, 0.8); }
  50% { opacity: 0.15; }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 var(--glow-color); }
  50% { box-shadow: 0 0 0 10px transparent; }
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal-stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.3s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.4s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.5s; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-illustration, .whatsapp-float, .hero-orbit-ring { animation: none; }
}