body > header {
  flex-wrap: wrap;
  gap: 12px 24px;
}

header nav.site-navigation {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px clamp(16px, 3vw, 32px);
  margin-left: auto;
  font-family: Zen, "Zen Kaku Gothic New", sans-serif;
  font-weight: 400;
  line-height: 1.6;
}

header nav.site-navigation a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 6px 0;
  color: #62615f;
  font-size: 16px;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s ease;
}

header nav.site-navigation a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 5px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}

header nav.site-navigation a:hover,
header nav.site-navigation a[aria-current="page"] {
  color: #1a1a1a;
}

header nav.site-navigation a:hover::after,
header nav.site-navigation a:focus-visible::after {
  transform: scaleX(1);
}

header nav.site-navigation a:focus-visible {
  outline: 2px solid #6a645b;
  outline-offset: 5px;
  border-radius: 5px;
}

header .nav-row { flex-wrap: wrap; }

@media (max-width: 700px) {
  header nav.site-navigation { gap: 4px 16px; }
  header nav.site-navigation a { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  header nav.site-navigation a,
  header nav.site-navigation a::after { transition: none; }
  header nav.site-navigation a { transform: none; }
}