/* === Digital Crystal · Pro LUX Motion v3.5 “Crystal Flow” === */
[data-lux] {
  opacity: 0;
  transform: translateY(70px) scale(0.96);
  transition:
    opacity 1.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
  backface-visibility: hidden;
  perspective: 1000px;
}

[data-lux].visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Внутренние элементы (появление чуть мягче и медленнее) */
[data-lux] .t-title,
[data-lux] .t-text,
[data-lux] .t-btn,
[data-lux] .t-card,
[data-lux] img {
  opacity: 0;
  transform: translateY(25px);
  transition:
    opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.6s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-lux].visible .t-title,
[data-lux].visible .t-text,
[data-lux].visible .t-btn,
[data-lux].visible .t-card,
[data-lux].visible img {
  opacity: 1;
  transform: translateY(0);
}

/* Поочерёдность */
[data-lux].visible .t-col:nth-child(1),
[data-lux].visible .t-card:nth-child(1) { transition-delay: 0.15s; }
[data-lux].visible .t-col:nth-child(2),
[data-lux].visible .t-card:nth-child(2) { transition-delay: 0.35s; }
[data-lux].visible .t-col:nth-child(3),
[data-lux].visible .t-card:nth-child(3) { transition-delay: 0.55s; }
[data-lux].visible .t-col:nth-child(4),
[data-lux].visible .t-card:nth-child(4) { transition-delay: 0.75s; }

/* Hover-эффекты — замедлены, чтобы не резало глаз */
[data-lux] .t-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.06);
  transition: all 0.7s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Mobile */
@media (max-width: 640px) {
  [data-lux] {
    transform: translateY(40px) scale(0.985);
    transition-duration: 1.2s;
  }
}