:root{font-family:Segoe UI,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;background-color:#fff}body{margin:0;min-width:320px;min-height:100vh;overflow:hidden;background-color:#fff}button{cursor:pointer}h2{font-weight:600;font-size:20px;margin:0 0 16px}