/********** Bouton flotant **********/
.button-floating a {
    position: fixed;
    left: 50%;
    bottom: var(--gap);
    transform: translate(-50%, 0);
    padding: 15px 15px;
    font-size: 1.5rem;
    z-index: 9;
    width: calc(3 * var(--width-column) + 3 * var(--width-space));
    min-width: 300px;
    text-align: center;
    transition: all .3s;
    border: 1px solid var(--color-black);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-text-regular);
    font-family: var(--font-text);
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: 50px;
    text-transform: uppercase;
}

.button-floating a:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}