#stage{min-height:220px}
#board,#grid{display:grid;gap:0;margin:0 auto;width:min(100%,400px)}
.cell{aspect-ratio:1}
.opt,.chip{padding:.65rem}
canvas{display:block;margin:0 auto;max-width:100%}
.row{display:flex;flex-wrap:wrap;gap:.45rem;justify-content:center;margin-top:.7rem}
.big{font-family:var(--font-display);font-size:clamp(1.5rem,6vw,2.3rem);text-align:center;line-height:1.2}
#arena{position:relative}
.target{position:absolute;transform:translate(-50%,-50%);border-radius:50%;border:2px solid #fff;padding:0;cursor:pointer}
#bar{position:relative;height:32px;margin:1rem 0;overflow:hidden}
#bar #zone{position:absolute;top:0;bottom:0}
#bar #needle{position:absolute;top:0;bottom:0;width:4px;margin-left:-2px}