/* DotGrid – Vollflächiger Hintergrund-Canvas */
.dot-grid-bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  display: block;
  background: var(--bg-dark, #0f172a);
}
@media (prefers-reduced-motion: reduce) {
  .dot-grid-bg { display: none; }
}