.darkveil-canvas{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  display:block;
  z-index:0;
}
.darkveil-veiling{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(900px 520px at 15% 15%, rgba(255,255,255,.06), transparent 62%),
             radial-gradient(820px 520px at 90% 10%, rgba(255,255,255,.05), transparent 60%),
             linear-gradient(180deg, rgba(0,0,0,.28), rgba(0,0,0,.62));
}