/* ============================================
   REVEAL MOTION
   ============================================ */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 1.5s var(--ease), transform 1.5s var(--ease);
}
[data-reveal].in-view {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-group] > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 1.5s var(--ease), transform 1.5s var(--ease);
}
[data-reveal-group].in-view > * {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-group].in-view > *:nth-child(1) { transition-delay: 0.02s; }
[data-reveal-group].in-view > *:nth-child(2) { transition-delay: 0.09s; }
[data-reveal-group].in-view > *:nth-child(3) { transition-delay: 0.16s; }
[data-reveal-group].in-view > *:nth-child(4) { transition-delay: 0.23s; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal-group] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* Animated waveform stroke (continuous power signature) */
.wave-anim {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: draw-wave 2.4s var(--ease) forwards;
}
@keyframes draw-wave {
  to { stroke-dashoffset: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .wave-anim { animation: none; stroke-dashoffset: 0; }
}

@keyframes fadeInPage {
  from {
    opacity: 0;
    transform: translateY(10px); /* Мягкое смещение снизу вверх */
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOutPage {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px); /* Страница плавно уходит чуть вверх */
  }
}

@media (prefers-reduced-motion: reduce) {
  body, body.fade-out {
    animation: none;
  }
}