.tapa-board { display: grid; grid-template-columns: repeat(6, 1fr); gap: 3px; width: min(94vw, 330px); margin: 10px auto; }
.tcell { aspect-ratio: 1/1; border-radius: 6px; background: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 800; color: #333; cursor: pointer; text-align: center; line-height: 1.1; }
.tcell.wall { background: #2b2b2b; color: transparent; }
.tcell.clue { background: #ffe9a8; cursor: default; }
.ctrl-row { display: flex; gap: 10px; justify-content: center; margin: 8px 0; }