.app-main{position:relative;max-width:1200px;margin:16px auto;padding:0 12px 12px;flex:1}
.canvas-wrap{position:relative;width:100%;display:block;max-width:1280px;margin:0 auto;aspect-ratio:16/9;max-height:90vh}
.canvas-wrap #game{display:block;width:100%;height:100%;object-fit:contain; /* moved from inline styles */ border: 2px solid #5a82cb; box-shadow: 0px 0px 11px 0px #004effad; border-radius:12px}