.bk-stage{width:min(100%,440px,max(240px,80svh - 264px));margin:0 auto;position:relative}.bk-canvas{aspect-ratio:400/500;border:3px solid var(--ink);border-radius:var(--radius);touch-action:none;cursor:none;width:100%;height:auto;display:block}.bk-over{text-align:center;background:color-mix(in srgb,var(--surface)88%,transparent);border-radius:var(--radius);flex-direction:column;justify-content:center;align-items:center;gap:10px;display:flex;position:absolute;inset:0}.bk-over p{margin:0}