#game-board{background:#174d3d;border:7px solid #49331f;border-radius:12px;display:grid;grid-template-columns:repeat(8,1fr);margin:1rem auto;max-width:600px;width:min(90vw,600px)}.reversi-cell{aspect-ratio:1;background:#236b52;border:1px solid rgba(0,0,0,.35);display:grid;min-width:0;place-items:center}.reversi-cell.legal::after{background:rgba(247,241,232,.32);border-radius:50%;content:"";height:20%;width:20%}.disk{border-radius:50%;box-shadow:inset 0 3px 5px rgba(255,255,255,.25),0 3px 5px rgba(0,0,0,.5);height:76%;width:76%}.disk.black{background:#171512}.disk.white{background:#f7f1e8}.piece-count{display:flex;gap:1rem;justify-content:center}.piece-count span{background:var(--surface);border:1px solid var(--border);border-radius:99px;padding:.35rem .8rem}