.site-nav {
  border-bottom: 1px solid #e3e3e8;
  background: #ffffff;
}

.site-nav-bar {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-nav-brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: #1f1f1f;
  text-decoration: none;
  white-space: nowrap;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  border: 1px solid #e3e3e8;
  background: #fff;
  color: #1f1f1f;
  font-size: 0.9rem;
  cursor: pointer;
}

.nav-toggle:hover {
  background: #f0f0f4;
}

.nav-toggle-icon {
  display: inline-block;
  width: 16px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform 0.15s ease;
}

.nav-toggle-icon::before {
  top: -5px;
}

.nav-toggle-icon::after {
  top: 5px;
}

.nav-toggle.is-open .nav-toggle-icon {
  background: transparent;
}

.nav-toggle.is-open .nav-toggle-icon::before {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle-icon::after {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-menu {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-menu[hidden] {
  display: none;
}

.nav-menu a {
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  color: #1f1f1f;
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-menu a:hover {
  background: #f0f0f4;
}

.nav-menu a.active {
  color: #3b5bfd;
  font-weight: 600;
  background: #eef1ff;
}