.site-footer {
  margin-top: 4rem;
  padding: 50px 20px;
  border-top: 0;
  background: transparent;
  color: #888;
  text-align: center;
}
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; max-width: var(--max-width); margin: 0 auto; }
.footer-card { padding: 1rem 0; }
.footer-links { display: grid; gap: 0.45rem; color: var(--muted); }
.back-to-top { margin-top: 0.8rem; display: inline-block; color: var(--primary); font-weight: 600; }