:root{color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:#000;color:#fff;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;overflow:hidden}#app{display:flex;width:100vw;height:100vh}@media(orientation:portrait){#app{flex-direction:column}}button{font-family:inherit}