/* =================================================================
   Site footer — brand block, link columns, visit details and the
   copyright bar, on the dark ink background.
   Phones: one centred column; each group of links sits under a thin
   divider, and the department links wrap as a centred cluster.
   Tablets: two start-aligned columns. Laptops: brand + three.
   ================================================================= */

.site-footer {
  --focus-ring-color: var(--color-amber);

  position: relative;
  padding-top: 16rem;   /* room for the CTA panel that overlaps the footer's top edge */
  background: var(--color-ink);
  color: rgb(255 255 255 / 0.76);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.2rem;
  padding-bottom: 4rem;
  border-bottom: 0.1rem solid rgb(255 255 255 / 0.14);
  text-align: center;
}

/* Divider above each group of links (phones) */
.site-footer__column {
  padding-top: 3.2rem;
  border-top: 0.1rem solid rgb(255 255 255 / 0.1);
}

.site-footer__logo { display: inline-flex; }

.site-footer__logo-image {
  width: auto;
  height: 6rem;
  margin-bottom: 1.6rem;
}

.site-footer__about {
  max-width: 38ch;
  margin-inline: auto;
  margin-bottom: 2rem;
  font-size: var(--text-sm);
  line-height: 1.9;
}

.site-footer__social {
  justify-content: center;
  color: var(--color-paper);
}

.site-footer__heading {
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-amber);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 2.4rem;
}

.site-footer__links--single {
  flex-direction: column;
  align-items: center;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  min-height: 4rem;   /* comfortable tap target on phones */
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.76);
  transition: color var(--transition-base);
}
.site-footer__link:hover { color: var(--color-paper); text-decoration: underline; text-underline-offset: 0.4rem; }

.site-footer__address {
  margin-bottom: 0.4rem;
  font-size: var(--text-sm);
  line-height: 1.8;
}

.site-footer__bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  padding-block: 2.4rem;
  font-size: var(--text-xs);
  text-align: center;
  color: rgb(255 255 255 / 0.66);
}

.site-footer__bar-link { color: rgb(255 255 255 / 0.8); text-decoration: underline; text-underline-offset: 0.3rem; }
.site-footer__bar-link:hover { color: var(--color-paper); }

@media (min-width: 769px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 4.8rem 4rem;
    text-align: start;
  }

  .site-footer__column { padding-top: 0; border-top: 0; }

  .site-footer__about { margin-inline: 0; }

  .site-footer__social { justify-content: flex-start; }

  .site-footer__heading { margin-bottom: 1.4rem; }

  .site-footer__links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.2rem 1.6rem;
  }

  .site-footer__links--single { grid-template-columns: 1fr; }

  .site-footer__link { min-height: 3.6rem; }

  .site-footer__address { margin-bottom: 1.2rem; }

  .site-footer__bar {
    flex-direction: row;
    justify-content: space-between;
    text-align: start;
  }
}

@media (min-width: 992px) {
  .site-footer__grid { grid-template-columns: 1.4fr 1.3fr 0.9fr 1.1fr; }
}