.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 6, 7, 0.96), rgba(5, 6, 7, 0.82));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.85rem;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gray-50);
}

.site-header__logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 0, rgba(231, 194, 123, 0.8), transparent 55%),
              radial-gradient(circle at 80% 100%, rgba(201, 43, 75, 0.8), transparent 55%),
              #050607;
  box-shadow: 0 0 18px rgba(201, 43, 75, 0.6);
}

.site-header__logo-symbol {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-header__brand-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-header__brand-tagline {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.25rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background-color: rgba(11, 13, 18, 0.9);
  cursor: pointer;
}

.site-header__toggle-bar {
  width: 1.35rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-primary));
  transition: transform var(--transition-normal), opacity var(--transition-fast);
}

.site-header__nav {
  position: fixed;
  inset-inline: 0;
  top: 3.7rem;
  background: radial-gradient(circle at top left, rgba(201, 43, 75, 0.4), transparent 60%),
              radial-gradient(circle at bottom right, rgba(231, 194, 123, 0.35), transparent 60%),
              rgba(5, 6, 7, 0.98);
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
}

.site-header__nav-list {
  list-style: none;
  margin: 0;
  padding: 0.75rem 1.25rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.site-header__nav-item {
  display: block;
}

.site-header__nav-link {
  display: block;
  padding: 0.55rem 0.3rem;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.site-header__nav-link--cta {
  color: #0b0c12;
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-primary));
  border-radius: 999px;
  padding-inline: 1rem;
  text-align: center;
  box-shadow: 0 0 18px rgba(231, 194, 123, 0.4);
}

.site-header__nav-item--accent {
  margin-top: 0.4rem;
}

.site-header__nav-link:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: 999px;
}

.site-header__nav-link[aria-current="page"] {
  color: var(--gray-50);
}

.site-header__nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (min-width: 960px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
  }

  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: 1.6rem;
    padding: 0;
  }

  .site-header__nav-link {
    padding: 0.25rem 0;
    font-size: 0.78rem;
  }

  .site-header__nav-item--accent {
    margin-top: 0;
  }

  .site-header__nav-link--cta {
    padding-block: 0.5rem;
    padding-inline: 1.2rem;
  }
}

@media (max-width: 320px) {
  .site-header__brand-tagline {
    display: none;
  }
}