.nk-board { display: grid; gap: 3px; margin: 18px auto; width: max-content; touch-action: manipulation; }
.nk-cell { width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; border-radius: 8px; background: #fff; border: 2px solid var(--card-bd); font-weight: 800; font-size: 17px; color: var(--ink); cursor: pointer; user-select: none; }
.nk-cell.black { background: #2f2a3a; border-color: #2f2a3a; color: #fff; }
.nk-cell.num { background: #fff7e6; border-color: var(--brand); }
.status-line { text-align: center; font-weight: 700; color: var(--brand); min-height: 22px; }