/* Scene selection uses a single JavaScript opacity clock for every surface. */
.hero-backdrop-layer {
  transition: none;
}
.scene-copy-stage {
  position: relative;
}
.scene-copy-current {
  display: block;
}
.scene-copy-incoming {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0;
  pointer-events: none;
}
/* Selecting a game never adds a scale, bounce or translation to the title strip. */
.dual .rail-project:active {
  scale: 1;
}
.dual .rail-project:hover {
  transform: none;
}
.dual-rail .rail-project {
  transition:
    background 560ms ease-in-out,
    color 560ms ease-in-out,
    transform 0.6s var(--ease-out),
    box-shadow 560ms ease-in-out;
}
.dual-rail .rail-project:after {
  transition:
    opacity 560ms ease-in-out,
    background-position 0.9s var(--ease-out);
}