.container-footer {
  z-index: 0;
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-top: 1px solid var(--border-light);
}
.brand-logo-footer > img {
  width: 10rem;
  height: auto;
}
.footer-heading {
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.footer-social-icon {
  transition: all 0.3s ease;
  outline: none;
}
.footer-social-icon:hover {
  outline: 3px solid var(--color-accent);
}