.site-footer {
  --footer-ink: #202427;
  --footer-muted: #646b70;
  --footer-line: #dfe3e5;
  --footer-background: #f5f7f8;
  --footer-link: #59676e;
  --footer-link-hover: #183e50;
  border-top: 1px solid var(--footer-line);
  padding: 0;
  background: var(--footer-background);
  color: var(--footer-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

.footer-inner {
  width: min(1240px, calc(100% - 64px));
  margin: 0 auto;
  padding: 46px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-areas: "pages contact office resources";
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.95fr) minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 44px clamp(36px, 4.5vw, 72px);
}

.footer-pages {
  grid-area: pages;
}

.footer-resources {
  grid-area: resources;
}

.footer-contact {
  grid-area: contact;
}

.footer-office {
  grid-area: office;
}

.footer-heading {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1.4;
  text-transform: uppercase;
}

.footer-heading {
  margin-bottom: 18px;
  color: var(--footer-ink);
}

.footer-links nav {
  display: grid;
  justify-items: start;
  gap: 10px;
}

.site-footer a {
  color: var(--footer-link);
  text-decoration-line: underline;
  text-decoration-style: dashed;
  text-decoration-color: rgba(89, 103, 110, 0.52);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: color 150ms ease, text-decoration-color 150ms ease;
}

.site-footer a:hover {
  color: var(--footer-link-hover);
  text-decoration-color: currentColor;
}

.site-footer a:focus-visible {
  border-radius: 2px;
  outline: 2px solid var(--footer-link-hover);
  outline-offset: 4px;
}

.site-footer .external::after {
  content: " ↗";
  font-size: 0.8em;
  text-decoration: none;
}

.contact-line,
.site-footer address {
  margin: 0;
}

.contact-line {
  overflow-wrap: anywhere;
}

.site-footer address {
  color: var(--footer-muted);
  font-style: normal;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--footer-line);
  color: var(--footer-muted);
  font-size: 0.82rem;
}

.footer-bottom p {
  margin: 0;
}

.back-to-top {
  flex: 0 0 auto;
}

@media (max-width: 1000px) {
  .footer-grid {
    grid-template-areas:
      "pages resources"
      "contact office";
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px 64px;
  }
}

@media (max-width: 760px) {
  .footer-inner {
    width: min(100% - 40px, 1100px);
  }

  .footer-grid {
    grid-template-areas:
      "pages"
      "resources"
      "contact"
      "office";
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}