*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f6fa}button:hover{transform:translateY(-2px);filter:brightness(1.05)}button:active{transform:translateY(0)}@media (max-width: 768px){body{padding:10px}}