.arcade-frame {
  position: relative;
}

.arcade-frame::after {
  content: "";
  position: absolute;
  inset: 18px;
  pointer-events: none;
  border-radius: 20px;
  box-shadow: inset 0 0 48px rgba(153, 255, 51, 0.06);
}

.canvas-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.03) 50%, transparent 100%);
  mix-blend-mode: screen;
}

.instructions li + li {
  margin-top: 10px;
}

/* Snake-specific scoreboard tweak: single column layout for 2 slots */
.scoreboard {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}