li a {
    text-decoration: none;
    position: relative;
    display: inline-block;
    color: #50C878;
    transition: color 0.3s ease-in-out;
}

li a:hover {
    color: #2E8B57;
}

li a::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #50C878;
    transform-origin: bottom right;
    transition: transform 0.3s ease-in-out;
}

li a:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}


button.menu li {
    text-decoration: none;
    position: relative;
    display: inline-block;
    color: #ecf5ef;
    transition: color 0.3s ease-in-out;
}

button.menu li:hover {
    color: #f8fcfa;
}

button.menu li::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #ecf5ef;
    transform-origin: bottom right;
    transition: transform 0.3s ease-in-out;
}

button.menu li:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}