.menu
{
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    border-bottom: 0.2rem solid var(--light-gray-color);
}

.menu-spacing
{
    height: 6.1rem;
}

.menu-content
{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0;
    padding-bottom: 0;
}


.menu h1
{
    font-size: 2.3rem;
    color: var(--primary-color);
}

.menu h1 a
{
    color: inherit; /* from .menu h1 */
}

.menu ul
{
   list-style: none;
   display: flex;
} 

.menu ul li a
{
    display: block;
    font-size: 1.8rem;
    padding: 1.6rem;
    font-weight: 600;
    color: var(--primary-color);
    position: relative;
}

.menu ul li a::after
{
    content: '';
    position: absolute;
    bottom: 1rem;
    left: 50%;
    width: 0;
    height: 0.2rem;
    background: var(--secondary-color);
    transition: all 350ms ease-in-out;
}

.menu ul li a:hover::after
{
    width: 50%;
    left: 25%;
}