button {
    padding: var(--padding-3) var(--padding-6);
    outline: none;  
    border: none;
    display: block;
    margin: 0 auto;
    transition: all .4s ease;
    z-index: 1;
    font-size: 1rem;
    white-space: nowrap;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

button.primary {
    background-color: var(--primary-blue);
    color: #fff;
    border: 2px solid var(--primary-blue);
}
button.primary:hover {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}
button.secondary {
    background-color: var(--primary-red);
    color: #fff;
    border: 2px solid var(--primary-red);
}
button.secondary:hover {
    background-color: transparent;
    color: var(--primary-red);
    border: 2px solid var(--primary-red);
}

button.primary_inverse {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    font-size: 0.75em;
}
button.primary_inverse:hover {
    background-color: var(--primary-blue);
    color: #fff;
    border: 2px solid var(--primary-blue);
    font-size: 0.75em;
}