/* Общий подвал всех публичных страниц. */

.site-footer {
  margin-top: 64px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.site-footer--flush {
  margin-top: 0;
}

.site-footer__main {
  padding: 44px 32px;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
}

.site-footer__brand {
  gap: 9px;
  margin-bottom: 12px;
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
}

.site-footer__brand:hover,
.site-footer__brand:focus {
  color: var(--ink);
}

.site-footer__mark {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
}

.site-footer__description {
  max-width: 38ch;
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.3;
}

.site-footer__heading {
  margin-bottom: 14px;
  color: var(--ink-3);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-footer__links {
  gap: 9px;
}

.site-footer__link,
.site-footer__link:hover,
.site-footer__link:focus {
  color: var(--ink-2);
  font-size: 14px;
}

.site-footer__legal {
  border-top: 1px solid var(--line);
}

.site-footer__legal-inner {
  padding: 20px 32px;
  gap: 12px;
}

.site-footer__legal-text {
  color: var(--ink-3);
  font-size: 13px;
}

.site-footer--expanded .site-footer__main {
  padding-top: 50px;
  padding-bottom: 50px;
}

.site-footer--expanded .site-footer__description {
  max-width: 31ch;
  line-height: 1.55;
}

.site-footer__socials {
  gap: 9px;
  margin-top: 18px;
}

.site-footer__social {
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--ink-2);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.site-footer__social:hover,
.site-footer__social:focus-visible {
  border-color: var(--line-2);
  color: var(--ink);
  transform: translateY(-1px);
}

.site-footer__social:focus-visible {
  outline: 3px solid var(--accent-tint2);
  outline-offset: 2px;
}

.site-footer--expanded .site-footer__heading {
  margin-bottom: 17px;
}

.site-footer--expanded .site-footer__links {
  gap: 11px;
}

.site-footer__copyright {
  gap: 9px;
}

.site-footer__age {
  padding: 3px 6px;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  color: var(--ink-2);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.2;
}

.site-footer__legal-links {
  gap: 24px;
}

.site-footer__legal-link,
.site-footer__legal-link:hover,
.site-footer__legal-link:focus {
  color: var(--ink-2);
  font-size: 12.5px;
  text-decoration: underline;
  text-decoration-color: var(--line-2);
  text-underline-offset: 3px;
}

@media (max-width: 680px) {
  .site-footer__main {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .site-footer--expanded .site-footer__main {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .site-footer--expanded .site-footer__description {
    max-width: 36ch;
  }

  .site-footer__legal-links {
    gap: 12px 20px;
  }

  .site-footer--expanded .site-footer__legal-inner {
    padding-right: 20px;
    padding-left: 20px;
  }
}