/* A decorative layer only; all existing content keeps its own layout and depth. */
body.kinetic-background {isolation:isolate}
#site-kinetic-background {
  position:fixed;
  inset:0;
  z-index:-1;
  display:block;
  width:100%;
  height:100%;
  pointer-events:none;
  user-select:none;
  -webkit-user-select:none;
}
/* These are full-page backdrops, not cards or dialog surfaces. */
body.kinetic-background #grid,
body.kinetic-background .join-intro {background:transparent}