footer {
    width: 100%;
    clear: both;
    text-align: center;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: #222;
    color: white;
    padding: 20px 0;
    margin-top: 50px;
}

.footer-container {
    width: 80%;
    margin: auto;
}

.footer-links, .footer-social {
    margin: 10px 0;
}

.footer-links a, .footer-social a {
    color: white;
    margin: 0 10px;
    text-decoration: none;
}

.footer-links a:hover, .footer-social a:hover {
    text-decoration: underline;
}

.footer-payment img {
    width: 50px;
    margin: 10px;
}

@media (max-width: 800px) {
    .footer-container {
        width: 95%;
        font-size: 1rem;
    }
    .footer-links a, .footer-social a {
        font-size: 1rem;
        margin: 0 6px;
    }
    .footer-payment img {
        width: 38px;
        margin: 6px;
    }
}

@media (max-width: 500px) {
    .footer-container {
        width: 99%;
        font-size: 0.95rem;
        padding: 0 2vw;
    }
    .footer-links, .footer-social {
        display: block;
        margin: 8px 0;
    }
    .footer-links a, .footer-social a {
        display: inline-block;
        font-size: 0.95rem;
        margin: 0 3px 6px 3px;
    }
    .footer-payment img {
        width: 28px;
        margin: 4px;
    }
}