body{font-family:Roboto,sans-serif;background-color:#f0f2f5;margin:0;min-height:100vh}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.shake{animation:shake .2s ease-in-out 0s 2}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}