.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}
.brand-mark {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  background-image: linear-gradient(135deg, var(--color-aqua), var(--color-lavender));
  color: #0b1120;
  box-shadow: var(--shadow-soft);
}
.brand-text {
  display: flex;
  flex-direction: column;
}
.brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}
.brand-tagline {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}
.primary-nav {
  display: flex;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
}
.nav-link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-700);
  padding: 0.35rem 0;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background-image: linear-gradient(90deg, var(--color-aqua), var(--color-coral));
  transition: width var(--transition-base);
}
.nav-link:focus-visible::after,
.nav-link:hover::after {
  width: 100%;
}
.nav-cta {
  margin-left: var(--space-2);
}
.menu-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.7);
  padding: 0.45rem 0.85rem;
  background-color: rgba(255, 255, 255, 0.9);
}
.menu-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}
.menu-toggle-bar {
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-aqua), var(--color-mint));
}
.menu-toggle-text {
  font-weight: 500;
  color: var(--color-gray-800);
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
  transform: translateY(-3px) rotate(-45deg);
}
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.54);
  display: none;
  align-items: flex-end;
  justify-content: center;
  z-index: 35;
}
.mobile-nav-overlay.is-open {
  display: flex;
}
.mobile-nav-panel {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.92));
  box-shadow: var(--shadow-glass);
  padding: var(--space-5) var(--space-4) calc(env(safe-area-inset-bottom, 0) + var(--space-6));
  position: relative;
}
.mobile-nav-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background-color: rgba(255, 255, 255, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.mobile-close-icon {
  font-size: 1.1rem;
  line-height: 1;
}
.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: var(--space-4);
}
.mobile-nav-link {
  display: block;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.98rem;
  color: var(--color-gray-800);
}
.mobile-nav-link:hover,
.mobile-nav-link:focus-visible {
  background-color: rgba(18, 181, 201, 0.08);
}
.mobile-nav-cta {
  margin-top: var(--space-3);
  width: 100%;
  justify-content: center;
}
@media (max-width: 959.98px) {
  .primary-nav {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
}
@media (min-width: 960px) {
  .mobile-nav-overlay {
    display: none !important;
  }
}
@media (max-width: 599.98px) {
  .brand-tagline {
    display: none;
  }
}
body.nav-open {
  overflow: hidden;
}