.site-header {
  min-height: 72px;
  padding: 0 clamp(18px, 4vw, 64px);
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
  color: var(--ink);
  background: rgba(244, 241, 232, .97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.site-brand {
  position: relative;
  z-index: 2;
  justify-self: start;
  font-size: 19px;
  font-weight: 850;
  letter-spacing: -.035em;
}

.site-primary {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.site-primary a {
  padding: 23px 0 21px;
  border-bottom: 2px solid transparent;
}

.site-primary a:hover { border-bottom-color: var(--ink); }

.site-menu {
  position: relative;
  z-index: 2;
  justify-self: end;
}

.site-menu summary {
  min-height: 42px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  border: 1px solid var(--ink);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 780;
}

.site-menu summary::-webkit-details-marker { display: none; }
.site-menu summary span { transition: transform 160ms ease; }
.site-menu[open] summary span { transform: rotate(180deg); }

.site-menu-panel {
  width: min(560px, calc(100vw - 40px));
  max-height: min(560px, calc(100dvh - 92px));
  padding: 22px;
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  overflow-y: auto;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid #314142;
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(13, 23, 24, .24);
}

.site-menu-sections {
  margin-bottom: 18px;
  padding-bottom: 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  border-bottom: 1px solid #344344;
}

.site-menu-sections a {
  min-height: 38px;
  display: grid;
  place-items: center;
  color: #dbe2de;
  border: 1px solid #344344;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 750;
}

.site-menu-label {
  margin: 0 0 12px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .12em;
}

.site-tool-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: #344344;
  border: 1px solid #344344;
}

.site-tool-links a {
  min-height: 58px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--ink);
}

.site-menu-panel a:hover,
.site-menu-panel a[aria-current="page"] {
  color: var(--lime);
  background: #1b2a2b;
}

.site-tool-links span { font-weight: 780; }
.site-tool-links small { color: #91a09b; font-size: 11px; }

.site-menu-backdrop {
  padding: 0;
  position: fixed;
  z-index: 1;
  inset: 72px 0 0;
  display: none;
  background: rgba(5, 13, 14, .48);
  border: 0;
}

.site-header.is-menu-open .site-menu-backdrop { display: block; }
.site-header.is-menu-open { right: 0; left: 0; position: fixed; }
.site-fallback { justify-self: end; font-size: 13px; font-weight: 750; }

html.site-menu-open,
html.site-menu-open body {
  overflow: hidden;
  overscroll-behavior: none;
}

@media (max-width: 1023px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-primary { display: none; }
}

@media (max-width: 767px) {
  .site-header { min-height: 64px; padding: 0 16px; }
  .site-brand { font-size: 17px; }
  .site-menu summary { min-height: 40px; padding: 7px 12px; }
  .site-menu-panel {
    width: auto;
    max-height: calc(100dvh - 76px);
    padding: 16px;
    position: fixed;
    top: 70px;
    right: 12px;
    left: 12px;
  }
  .site-menu-backdrop { inset: 64px 0 0; }
  .site-menu-sections { margin-bottom: 14px; padding-bottom: 14px; }
  .site-menu-label { margin-bottom: 9px; }
  .site-tool-links a { min-height: 46px; padding: 7px 11px; }
  .site-tool-links small { display: none; }
}

@media (max-width: 374px) {
  .site-menu-sections { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .site-menu summary span { transition: none; }
}