.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.hero .reveal:nth-child(2) { transition-delay: 80ms; }
.hero .reveal:nth-child(3) { transition-delay: 150ms; }
.hero .reveal:nth-child(4) { transition-delay: 220ms; }
.hero .reveal:nth-child(5) { transition-delay: 300ms; }
.capability-row:nth-child(2) { transition-delay: 70ms; }
.capability-row:nth-child(3) { transition-delay: 140ms; }
.capability-row:nth-child(4) { transition-delay: 210ms; }

.core-orbit { animation: orbit 22s linear infinite; }
.route-map::before { animation: pulse-ring 4.5s ease-in-out infinite; }
.signal-line i { animation: signal 3.2s ease-in-out infinite; transform-origin: left; }
.signal-line i:nth-of-type(2) { animation-delay: 1.1s; }

.modal__backdrop { animation: backdrop-in 220ms ease both; }
.modal__panel { animation: modal-in 360ms cubic-bezier(.22,.61,.36,1) both; }
.modal.is-closing .modal__backdrop { animation: backdrop-out 180ms ease both; }
.modal.is-closing .modal__panel { animation: modal-out 180ms ease both; }

@keyframes orbit { to { transform: rotate(360deg); } }
@keyframes pulse-ring {
  0%, 100% { opacity: .55; transform: scale(1); }
  50% { opacity: .9; transform: scale(1.06); }
}
@keyframes signal {
  0%, 100% { opacity: .35; transform: scaleX(.35); }
  50% { opacity: 1; transform: scaleX(1); }
}
@keyframes backdrop-in { from { opacity: 0; } }
@keyframes backdrop-out { to { opacity: 0; } }
@keyframes modal-in {
  from { opacity: 0; transform: translateY(28px) scale(.98); }
}
@keyframes modal-out {
  to { opacity: 0; transform: translateY(15px) scale(.985); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    transition-delay: 0ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}