footer {
    background-color: var(--oscuro);
    color: var(--blanco);
    margin-top: 100px;
    padding: 40px;
    display: flex;
    justify-content: center;
}

footer a {
    text-decoration: none;
    color: var(--blanco);
    font-size: 20px;
    margin: 0px 20px;
    text-align: center;
    white-space: nowrap;
}

@media(max-width: 425px) {
    footer {
        display: block;
    }
    footer div {
        margin-top: 20px;
    }
}