html,#app{background-color:#fff}#layout{display:flex;flex-direction:column}#canvas-wrapper{width:100%;max-width:600px;aspect-ratio:1 / 1}@media (min-width: 600px){#canvas-wrapper{width:600px;height:600px;margin:0 auto}}.ui-area{padding:10px;background:#f7f7f7}.center-box{max-width:600px;margin:0 auto;width:100%}.ui-buttons{display:flex;gap:12px;justify-content:center}