.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #181818;
  transition: background var(--transition-base);
}

.site-header.scrolled {
  background: var(--color-surface-contrast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.brand-mark {
  height: 44px;
  width: auto;
}

.brand-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--color-text-inverse);
}

.nav-desktop .nav-list {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.nav-desktop a {
  color: var(--color-text-inverse);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
}

.nav-desktop a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--color-accent-gold);
  transition: width var(--transition-fast);
}

.nav-desktop a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.5em 1em;
  border: 1px solid var(--color-accent-gold);
  border-radius: var(--radius-pill);
}

.nav-toggle {
  display: none;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text-inverse);
}

.mobile-menu {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(320px, 90%);
  background: var(--color-surface-contrast);
  z-index: 1001;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu-inner {
  padding: var(--space-4);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-nav-list a {
  color: var(--color-text-inverse);
  font-size: 1.2rem;
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
}

@media (max-width: 900px) {
  .nav-desktop {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .brand-mark {
    height: 34px;
  }
}