:root{--accent:#4284d7}
.stage{background:#8cc277}
.touch{position:absolute;left:0;right:0;bottom:10px;display:none;justify-content:space-between;padding:0 12px;pointer-events:none}
.touch div{display:flex;gap:10px;pointer-events:auto}
.touch button{width:70px;height:70px;border-radius:50%;border:3px solid var(--ink);background:rgba(255,253,247,.85);font-weight:900;font-size:18px;touch-action:none;user-select:none}
.touch button.gas{background:rgba(127,224,160,.9)}.touch button.on{background:#f2b84b}
@media (pointer:coarse){.touch{display:flex}}