.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
}

.nav-inner {
  min-height: 3.25rem;
}

.nav-brand-text {
  font-size: var(--font-size-lg);
  letter-spacing: 0.02em;
}

.nav-primary {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav-item-accent .nav-link-cta {
  padding-inline: 0.9rem;
  padding-block: 0.3rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(120deg, var(--color-primary-soft), var(--color-mint-soft));
  box-shadow: 0 8px 18px rgba(183, 144, 216, 0.35);
  font-weight: 600;
}

.nav-item-accent .nav-link-cta:hover {
  box-shadow: 0 10px 24px rgba(161, 124, 215, 0.6);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 6px 16px rgba(170, 139, 213, 0.4);
}

.nav-toggle:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: 3px;
}

.nav-toggle-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav-toggle-box {
  width: 22px;
  height: 18px;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle-line {
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-700);
  transition: transform var(--transition-normal), opacity var(--transition-normal), background var(--transition-fast);
}

.site-header.is-menu-open .nav-toggle-line-1 {
  transform: translateY(8px) rotate(45deg);
}

.site-header.is-menu-open .nav-toggle-line-2 {
  opacity: 0;
}

.site-header.is-menu-open .nav-toggle-line-3 {
  transform: translateY(-8px) rotate(-45deg);
}

.site-header.is-menu-open .nav-toggle-line {
  background: var(--color-primary-dark);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-primary {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    transform-origin: top center;
    transform: scaleY(0.95);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-fast);
  }

  .site-header.is-menu-open .nav-primary {
    opacity: 1;
    visibility: visible;
    transform: scaleY(1);
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    margin-top: 0.4rem;
    margin-bottom: 0.45rem;
    padding: 0.55rem 0.75rem 0.7rem;
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow-soft);
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 0.35rem 0.55rem;
  }

  .nav-item-accent .nav-link-cta {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav-brand-text {
    font-size: var(--font-size-md);
  }
}

@media (min-width: 769px) {
  .nav-toggle {
    display: none;
  }

  .nav-primary {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle-line {
    transition: none;
  }
}