#eg-surface.bubbles-surface{touch-action:auto}
/* The board keeps its 440:540 shape and stays within about 70% of the window height. */
.eg-game canvas.bb-canvas{display:block;width:100%;max-width:min(460px,calc(70vh*440/540));height:auto;margin:6px auto;border-radius:14px;background:#f1f3f6;touch-action:none;cursor:crosshair}
.eg-game canvas.bb-canvas:focus-visible{outline:3px solid var(--accent-strong);outline-offset:3px}
.bb-info{margin:10px 0 0;font-size:13px;color:var(--ink-2);text-align:center}
.bubbles-surface .eg-toolbar button{min-height:44px}