/* Uniform 8×8 board surround: no separate coordinate strip. */
.game-dashboard .board-frame {
  box-sizing: border-box;
  padding: 12px;
  display: block;
}
.game-dashboard .board-frame .board {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  grid-template-rows: repeat(8, minmax(0, 1fr));
}
.game-dashboard .board-frame .square {
  min-width: 0;
  min-height: 0;
}
@media (max-width: 640px) {
  .game-dashboard .board-frame { padding: 8px; }
}