/* =============================================================================
   footer.css — Site footer
   ============================================================================= */

.footer {
  background-color: var(--surface);
}

.footer__inner {
  display: grid;
  gap: 2.5rem;
  padding-top: 3.5rem;
  padding-bottom: 3.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

/* Brand column */
.footer__brand-name {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.footer__brand-inst {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.footer__brand-note {
  margin-top: 1rem;
  max-width: 22rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--fg-muted);
}

/* Link columns */
.footer__col-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin-bottom: 0.75rem;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.footer__links a {
  transition: color 0.12s;
}

.footer__links a:hover {
  color: var(--accent);
}

/* Bottom bar */
.footer__bar {
  border-top: 1px solid var(--border);
}

.footer__bar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  font-size: 0.75rem;
  color: var(--fg-muted);
}

.footer__bar-mono {
  font-family: var(--font-mono);
}