.site-footer {
  grid-template-columns: minmax(280px, 1.3fr) minmax(180px, .7fr) minmax(220px, .9fr);
  align-items: start;
}
.footer-about p {
  max-width: 560px;
  margin: 18px 0 22px;
}
.footer-links,
.footer-tools {
  display: grid;
  gap: 10px;
}
.footer-links h3,
.footer-tools h3 {
  margin: 0 0 8px;
  color: var(--text);
  font-size: 16px;
}
.footer-links a,
.footer-tools a {
  color: var(--muted);
  font-weight: 700;
  transition: color .18s ease, transform .18s ease;
}
.footer-links a:hover,
.footer-tools a:hover {
  color: #67e8f9;
  transform: translateX(3px);
}
.footer-tools {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.footer-tools h3 {
  grid-column: 1 / -1;
}
@media (max-width: 920px) {
  .site-footer { grid-template-columns: 1fr 1fr; }
  .footer-about { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .site-footer,
  .footer-tools { grid-template-columns: 1fr; }
}