:root{--sat: env(safe-area-inset-top);--sar: env(safe-area-inset-right);--sab: env(safe-area-inset-bottom);--sal: env(safe-area-inset-left)}body{margin:0;padding:0;background-color:#111827}#game-fps{position:absolute;z-index:1000;top:var(--sat);left:50%;transform:translate(-50%);padding:2px 5px;font-size:1rem;color:#ffffffbf;background:#00000080}#game-container canvas{max-width:100vw;max-height:100vh}.font-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}