/* ── SCROLL REVEAL ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── KEYFRAMES ───────────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}
@keyframes droneFly {
  0%, 100% { transform: translateY(-50%) rotate(-1deg); }
  50%       { transform: translateY(calc(-50% - 28px)) rotate(1.5deg); }
}
@keyframes scrollDot {
  0%   { opacity: 1; transform: translateY(0); }
  80%  { opacity: 0; transform: translateY(12px); }
  81%  { opacity: 0; transform: translateY(0); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-16px); }
}