:root{color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}html,body{background:#000;width:100%;height:100%;overflow:hidden}#viewport{cursor:none;width:100vw;height:100vh;display:block}#ui-root{pointer-events:none;font-family:system-ui,sans-serif;position:fixed;inset:0}#hud-canvas{pointer-events:none;image-rendering:auto;width:100%;height:100%;position:absolute;inset:0}#hud-desat{pointer-events:none;-webkit-backdrop-filter:saturate();display:none;position:absolute;inset:0}#debug-overlay{z-index:10}