.start-hero { position: relative; isolation: isolate; }
.start-hero > .hero-dot-grid {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: -1; pointer-events: none; overflow: hidden;
}
.hero-dot-grid canvas { display: block; width: 100%; height: 100%; }
@media print { .hero-dot-grid { display: none !important; } }