@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
.btn:hover {
    background: #357ABD;
}
input[type="radio"]:checked + span {
    font-weight: bold;
    color: #4a90e2;
}
