*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);background-attachment:fixed;min-height:100vh}body{color:#1a1a1a;display:flex;justify-content:center;align-items:center;padding:20px}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;outline:none;transition:all .2s ease}button:disabled{opacity:.5;cursor:not-allowed}@media (max-width:768px){body{padding:16px}}@media (max-width:480px){body{padding:12px}}