.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 249, 242, 0.96);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-xs);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}
.header-brand {
  display: flex;
  align-items: center;
}
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-image: var(--gradient-rainbow-soft);
  box-shadow: var(--shadow-soft-rainbow);
}
.brand-text {
  display: flex;
  flex-direction: column;
}
.brand-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}
.brand-tagline {
  font-size: 0.8rem;
  color: var(--color-text-soft);
}
.primary-nav {
  display: flex;
  align-items: center;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-soft);
  padding: 0.25rem 0;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background-image: var(--gradient-rainbow-soft);
  transition: width var(--transition-normal);
}
.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}
.nav-link:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-pill);
  padding-inline: 0.45rem;
  margin-inline: -0.45rem;
}
.nav-cta .btn-small {
  padding: 0.55rem 1.2rem;
  font-size: 0.9rem;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 139, 167, 0.4);
  background: #ffffff;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}
.nav-toggle:focus-visible {
  box-shadow: var(--focus-ring);
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}
@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }
  .primary-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--color-border-subtle);
    transform-origin: top;
    transform: scaleY(0.95);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
  }
  .primary-nav.is-open {
    opacity: 1;
    transform: scaleY(1);
    pointer-events: auto;
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
    gap: var(--space-3);
  }
  .nav-cta {
    width: 100%;
  }
  .nav-cta .btn-small {
    width: 100%;
    justify-content: center;
  }
}
@media (min-width: 769px) {
  .primary-nav {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }
}
@media (max-width: 480px) {
  .brand-title {
    font-size: 0.95rem;
  }
  .brand-tagline {
    display: none;
  }
}