body{font:16px system-ui;background:#101827;color:#f6f7fb;margin:0;padding:20px;overflow-wrap:anywhere}main{max-width:440px;margin:8vh auto}input,button{font:inherit;min-height:44px;box-sizing:border-box;max-width:100%;padding:10px}input{width:100%}button{cursor:pointer}