header .brand,
footer .brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  line-height: 0;
  flex: 0 0 auto;
}

.brand-logo {
  display: block;
  width: 64px;
  height: 64px;
  object-fit: contain;
}

footer .brand-logo {
  width: 72px;
  height: 72px;
}

@media (max-width: 570px) {
  header .brand-logo { width: 56px; height: 56px; }
  footer .brand-logo { width: 64px; height: 64px; }
}