footer {
    padding: 1rem;
    background: url("../img/bg-amarelo.svg") var(--cor-amarelo-prisma) no-repeat
        center bottom;
    background-size: 100% 10rem;
    min-height: 10rem;
    display: flex;
    flex-flow: column nowrap;
    align-items: center;
}

body.alto-contraste footer {
    border-top: 1px solid white;
    background-image: none;
    background-color: black;
}

footer nav {
    flex: 1 1 auto;
    margin-bottom: 1rem;
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 2rem;
    justify-content: center;
}

@media (min-width: 768px) {
    footer nav {
        grid-template-columns: repeat(2, auto);
        margin-bottom: 2rem;
        grid-gap: 4rem;
    }
}

@media (min-width: 1024px) {
    footer nav {
        grid-template-columns: repeat(3, auto);
    }
}

footer p {
    text-align: center;
    color: var(--cor-cinza-mais);
}

body.alto-contraste footer p {
    color: white;
}

footer nav > div a {
    display: block;
    padding: 0.25rem 0;
    text-decoration: none;
    color: var(--cor-azul-correios);
}

body.alto-contraste footer nav > div a {
    color: var(--cor-link-contraste);
}

footer nav > div a:focus {
    box-shadow: 0 0 1px 1px var(--cor-azul-correios);
}

footer nav > div a:hover {
    color: var(--cor-azul-correios);
    text-decoration: underline;
}

footer h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--cor-azul-correios);
}

body.alto-contraste footer h2 {
    color: white;
}