.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.header-brand {
  display: flex;
  align-items: center;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-mark {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, rgba(224, 177, 90, 0.35), transparent 60%),
              radial-gradient(circle at 70% 80%, rgba(21, 154, 88, 0.4), transparent 65%),
              #05060a;
  box-shadow: 0 0 0 1px rgba(224, 177, 90, 0.5), 0 0 25px rgba(0, 0, 0, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand-chip {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 2px solid rgba(5, 6, 10, 0.95);
}

.brand-chip--gold {
  left: 7px;
  top: 10px;
  background: radial-gradient(circle at 20% 0, #f5d48e 0, #e0b15a 40%, #c4913c 100%);
}

.brand-chip--green {
  right: 7px;
  bottom: 8px;
  background: radial-gradient(circle at 20% 0, #37d287 0, #159a58 35%, #0c6c3a 100%);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
}

/* Navigation */

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

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-item--primary .nav-link-cta {
  padding: 0.4rem 1.15rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(224, 177, 90, 0.7);
  background: rgba(224, 177, 90, 0.06);
}

.nav-item--primary .nav-link-cta:hover,
.nav-item--primary .nav-link-cta[aria-current="page"] {
  background: radial-gradient(circle at 20% 0, #f5d48e 0, #e0b15a 40%, #c4913c 100%);
  color: #120c04;
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gray-300);
}

.nav-toggle-box {
  position: relative;
  width: 24px;
  height: 18px;
}

.nav-toggle-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  transition: transform var(--transition-normal),
              opacity var(--transition-normal),
              top var(--transition-normal),
              bottom var(--transition-normal);
}

.nav-toggle-line--top {
  top: 0;
}

.nav-toggle-line--middle {
  top: 8px;
}

.nav-toggle-line--bottom {
  bottom: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line--top {
  top: 8px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line--middle {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line--bottom {
  bottom: 8px;
  transform: rotate(-45deg);
}

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

/* Responsive behavior */

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 60px;
    background: radial-gradient(circle at 0 0, rgba(224, 177, 90, 0.12), transparent 55%),
                rgba(5, 6, 10, 0.97);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal),
                transform var(--transition-normal),
                visibility var(--transition-normal);
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6) var(--space-4) var(--space-6);
    gap: var(--space-4);
  }

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

@media (max-width: 480px) {
  .brand-subtitle {
    display: none;
  }
}