footer {
    background-color: #2c3e50;    /* same background as header */
    color: #edeaea;            /* light text */
    text-align: center;
    font-size: 0.9rem;
    margin: 3rem auto 0 auto;  /* match section top margin, center horizontally */
    max-width: 800px;          /* same as sections */
    padding: 1rem 2rem;        /* same as sections */
    border-radius: 10px;           /* subtly rounded corners */
}

.footer-promo-text a {
    color: white;           
    text-decoration: none;
    font-weight: 500;
}

footer a:hover {
    text-decoration: underline;
    color: white;           
}

.big-footer-text {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}