html,body{background:#1d2230;height:100%;margin:0;font-family:system-ui,sans-serif;overflow:hidden}#app{position:fixed;inset:0}#app canvas{display:block}.stats-hud{color:#e8e8e8;pointer-events:none;background:#0000008c;border-radius:4px;padding:4px 8px;font:12px/1.4 ui-monospace,monospace;position:fixed;top:8px;left:8px}.toast{color:#fff;background:#000000bf;border-radius:4px;padding:8px 14px;font-size:14px;position:fixed;bottom:16px;left:50%;transform:translate(-50%)}