.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: radial-gradient(circle at 20% 0, rgba(233, 196, 106, 0.7), #355070);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
  text-transform: uppercase;
  box-shadow: var(--shadow-soft);
}
.brand-text {
  display: flex;
  flex-direction: column;
}
.brand-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-heading);
}
.brand-subtitle {
  font-size: 0.78rem;
  color: var(--gray-500);
}
.primary-nav {
  margin-left: auto;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav-item .header-link {
  font-size: 0.9rem;
  color: var(--gray-700);
}
.nav-item .header-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}
.nav-cta-item {
  margin-left: 0.25rem;
}
.nav-cta {
  font-size: 0.78rem;
  padding-inline: 1.4rem;
}
.nav-toggle {
  display: none;
  position: relative;
  width: 42px;
  height: 34px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(191, 202, 211, 0.8);
  background: rgba(243, 245, 247, 0.96);
  justify-content: center;
  align-items: center;
  gap: 5px;
  box-shadow: var(--shadow-subtle);
}
.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-700);
  transform-origin: center;
  transition: transform var(--transition-base), opacity var(--transition-base), background-color var(--transition-base);
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}
.nav-toggle.is-active .nav-toggle-bar:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}
.nav-toggle.is-active .nav-toggle-bar:nth-child(2) {
  transform: translateY(-3px) rotate(-45deg);
}
@media (max-width: 900px) {
  .primary-nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 94px;
    background: rgba(243, 245, 247, 0.98);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(191, 202, 211, 0.7);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }
  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-5);
    gap: 1.1rem;
  }
  .nav-item .header-link {
    font-size: 0.98rem;
  }
  .nav-cta-item {
    width: 100%;
    margin-top: 0.4rem;
  }
  .nav-cta {
    width: 100%;
    justify-content: center;
  }
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }
}
@media (max-width: 640px) {
  .brand-subtitle {
    display: none;
  }
}
.site-header + * {
  scroll-margin-top: 80px;
}