.top-bar-link {
  color: #ffffff;
  font-weight: 600;
  transition: opacity 160ms ease;
}

.top-bar-link:hover {
  opacity: 0.85;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 1rem 0;
  position: relative;
  flex-wrap: wrap;
}

.site-nav__details {
  position: relative;
}

.site-nav__summary,
.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #374151;
  font-weight: 500;
  transition: color 160ms ease;
}

.site-nav__summary {
  list-style: none;
  cursor: pointer;
}

.site-nav__summary svg,
.site-nav__link svg {
  width: 0.95rem;
  height: 0.95rem;
}

.site-nav__summary:hover,
.site-nav__link:hover,
.site-nav__details:hover > .site-nav__summary,
.site-nav__details:focus-within > .site-nav__summary {
  color: #1e5fa8;
}

.site-nav__dropdown {
  position: absolute;
  left: 0;
  top: calc(100% - 1px);
  min-width: 220px;
  padding: 0.5rem;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.12);
  display: none;
  z-index: 30;
}

.site-nav__details:hover > .site-nav__dropdown,
.site-nav__details:focus-within > .site-nav__dropdown {
  display: grid;
  gap: 0.25rem;
}

.site-nav__details:hover > .site-nav__summary,
.site-nav__details:focus-within > .site-nav__summary {
  color: #1e5fa8;
}

.site-nav__dropdown .site-nav__details {
  width: 100%;
}

.site-nav__dropdown .site-nav__summary,
.site-nav__dropdown .site-nav__link {
  width: 100%;
  justify-content: space-between;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  color: #111827;
}

.site-nav__dropdown .site-nav__summary:hover,
.site-nav__dropdown .site-nav__link:hover {
  background: #f3f4f6;
  color: #1e5fa8;
}

.site-nav__dropdown .site-nav__dropdown {
  left: calc(100% + 0.5rem);
  top: 0;
}