.footer-columns {
  grid-template-columns: minmax(0, 1fr) minmax(0, .7fr) minmax(0, 1.15fr) 150px;
  gap: 40px;
}
.footer-certifications {
  text-align: center;
}
.footer-certifications h2 {
  margin: 0 0 18px;
  color: var(--navy);
  font: 600 14px/1.5 var(--body);
  letter-spacing: 0;
}
.footer-certification {
  display: block;
  width: 140px;
  margin-inline: auto;
  max-width: 100%;
}
.footer-certification img {
  display: block;
  width: 100%;
  height: auto;
}
.footer-certification:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
}
@media (min-width: 621px) and (max-width: 1000px) {
  .footer-columns {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
  }
}
@media (max-width: 620px) {
  .footer-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
  .footer-certifications {
    padding-top: 20px;
    border-top: 1px solid var(--line);
  }
  .footer-certifications h2 { margin-bottom: 14px; }
  .footer-certification { width: 120px; }
}