footer {
    background-color: var(--dark);
}

footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--secondary);
}

footer h3 {
    position: relative;
    padding-bottom: 0.5rem;
}

footer h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--secondary);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--secondary);
    border-color: var(--secondary);
}