.site-nav { align-items: center; gap: clamp(8px, 2vw, 28px); }
.site-nav > a, .nav-menu summary { padding: 10px 2px; }
.nav-menu { position: relative; scroll-margin-top: 0; }
.nav-menu summary { cursor: pointer; list-style: none; white-space: nowrap; }
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-menu summary::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border: solid currentColor;
  border-width: 0 1px 1px 0;
  transform: translateY(-2px) rotate(45deg);
  margin-left: 7px;
}
.nav-menu[open] summary { color: var(--accent); }
.nav-menu ul {
  position: absolute;
  z-index: 5;
  top: calc(100% + 5px);
  left: 0;
  width: 250px;
  list-style: none;
  padding: 8px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 16px 40px #10233f24;
  background: #fff;
}
.nav-menu:last-child ul { left: auto; right: 0; }
.nav-menu li a { display: block; padding: 10px; border-radius: 5px; color: var(--ink); }
.nav-menu li a:hover, .nav-menu li a:focus-visible { background: #eef4ff; color: var(--accent); }
.site-footer { background: #f3f6fc; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1fr 3fr; gap: 28px; padding-block: 45px; }
.footer-about p { color: var(--muted); font-size: 14px; margin: 13px 0; max-width: 27ch; }
.footer-about > a:last-child { font-size: 14px; font-weight: 700; text-decoration: underline; }
.footer-grid nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; padding: 0; }
.footer-grid h2 { font-size: 17px; margin: 0 0 12px; letter-spacing: -.02em; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li a { display: inline-block; padding-block: 5px; }
@media (max-width: 760px) {
  .header { position: relative; }
  .header .nav { flex-wrap: wrap; padding-top: 12px; gap: 6px 12px; }
  .site-nav { order: 1; width: 100%; justify-content: space-between; padding-bottom: 8px; font-size: 12px; }
  .nav-menu { position: static; }
  .nav-menu ul, .nav-menu:last-child ul { top: calc(100% - 4px); left: 18px; right: 18px; width: auto; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .footer-grid nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.footer-about address {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
  font-style: normal;
  line-height: 1.55;
  overflow-wrap: anywhere;
}
.footer-about address a { text-decoration: underline; text-underline-offset: .16em; }