.board-wrap{position:relative;width:min(100%,430px);margin:auto;overflow:hidden;border:1px solid #294756;border-radius:18px;background:#07131e}canvas{display:block;width:100%;height:auto;touch-action:none;outline-offset:-4px}.game-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;background:rgba(4,14,26,.76);backdrop-filter:blur(3px);pointer-events:none;text-align:center}.game-overlay[hidden]{display:none}.game-overlay strong{font-size:clamp(24px,6vw,36px);color:#e1fff5}.game-overlay span{font-size:14px;color:#b6ccd8;line-height:1.8}.touch-controls{display:flex;justify-content:center;margin-top:20px}.flap-button{min-height:52px;min-width:220px;touch-action:manipulation}.instructions{font-size:13px;color:#97aebf;line-height:1.85;margin:18px 0 0}.control-row{flex-wrap:wrap}button:disabled{opacity:.42;cursor:default}button{touch-action:manipulation}