.board-wrap{display:flex;justify-content:center}.board{display:grid;grid-template-columns:22px repeat(8,1fr);grid-template-rows:22px repeat(8,1fr);gap:2px;background:var(--board-frame);padding:0 var(--space-2) var(--space-2) 0;border-radius:var(--radius-md);width:100%;max-width:clamp(300px,calc(100vh - 230px),520px);user-select:none;-webkit-user-select:none}.board--locked .square{cursor:default}.coord{display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:500;color:var(--board-frame-text)}.square{aspect-ratio:1;border:0;padding:0;position:relative;display:flex;align-items:center;justify-content:center;touch-action:manipulation}.square.light{background:var(--board-square-light)}.square.dark{background:var(--board-square-dark)}.square.last:before,.square.check:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--color-accent-soft)}.square.check:before{background:var(--color-accent-strong);opacity:.55}.square.selected{outline:3px solid var(--color-accent);outline-offset:-3px;z-index:1}.square:focus-visible{outline:3px solid var(--color-focus);outline-offset:-3px;z-index:1}.piece{position:relative;z-index:2;font-family:Segoe UI Symbol,"Noto Sans Symbols 2",DejaVu Sans,Apple Symbols,sans-serif;font-size:clamp(1.5rem,9.5vw,3rem);line-height:1;-webkit-text-stroke:1px var(--piece-dark-ring)}.piece--light{color:var(--piece-light-fill)}.piece--dark{color:var(--piece-dark-fill);-webkit-text-stroke-color:var(--piece-light-ring)}.square.movable:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border:3px solid var(--color-accent);pointer-events:none}.legal-dot{width:26%;height:26%;border-radius:50%;background:var(--color-accent);position:absolute;z-index:1}.promo{display:flex;align-items:center;justify-content:center;gap:var(--space-2);flex-wrap:wrap;margin-top:var(--space-3)}.promo__label{color:var(--color-text-muted);font-size:.95rem}.promo__piece{min-width:48px;font-size:1.8rem;padding:4px 10px;font-family:Segoe UI Symbol,"Noto Sans Symbols 2",DejaVu Sans,Apple Symbols,sans-serif;background:var(--color-surface-2);-webkit-text-stroke:1px var(--piece-dark-ring)}.promo__piece.piece--light{color:var(--piece-light-fill)}.promo__piece.piece--dark{color:var(--piece-dark-fill);-webkit-text-stroke-color:var(--piece-light-ring)}.tally .chip{font-family:"Segoe UI Symbol","Noto Sans Symbols 2","DejaVu Sans","Apple Symbols",var(--font-body)}@media (max-width: 420px){.board{grid-template-columns:16px repeat(8,1fr);grid-template-rows:16px repeat(8,1fr);padding:0 6px 6px 0;border-radius:var(--radius-sm)}.coord{font-size:.6rem}.square.movable:after{border-width:2px}}