.board-empty-mosaic{-webkit-mask-image:linear-gradient(#000 0% 18%,#0000 52%);mask-image:linear-gradient(#000 0% 18%,#0000 52%)}.board-empty-tile{border:1px dashed var(--border-default);border-radius:var(--radius-card);background:var(--surface-elevated);opacity:.55}.dark .board-empty-tile{opacity:.4}