.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  background: linear-gradient(to bottom, rgba(5, 6, 8, 0.9), rgba(5, 6, 8, 0.65));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-6);
}

.site-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

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

.site-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, var(--color-accent-gold-soft), transparent 60%),
    radial-gradient(circle at 70% 80%, var(--color-primary-soft), transparent 60%),
    #050608;
  box-shadow: 0 0 0 1px rgba(198, 161, 90, 0.6), 0 12px 30px rgba(0, 0, 0, 0.8);
  position: relative;
}

.site-header__logo-mark::after {
  content: "V";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
}

.site-header__titles {
  display: flex;
  flex-direction: column;
}

.site-header__title {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1.1;
}

.site-header__subtitle {
  font-size: var(--font-size-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.site-header__nav {
  margin-left: auto;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__nav-item--accent {
  margin-left: var(--space-2);
}

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold-soft), transparent);
  transition: width var(--transition-normal);
}

.site-header__nav-link:focus-visible::after,
.site-header__nav-link:hover::after {
  width: 100%;
}

.site-header__nav-link--cta {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(198, 161, 90, 0.7);
  background: radial-gradient(circle at top left, rgba(198, 161, 90, 0.3), transparent 55%),
    rgba(12, 14, 18, 0.9);
  color: var(--color-text);
  box-shadow: var(--shadow-subtle);
}

.site-header__nav-link--cta::after {
  display: none;
}

.site-header__nav-link--cta:hover {
  background: radial-gradient(circle at top left, rgba(198, 161, 90, 0.5), transparent 55%),
    rgba(12, 14, 18, 1);
}

.site-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 36px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(5, 6, 8, 0.8);
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.site-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 3px;
}

.site-header--menu-open .site-header__toggle-bar:first-child {
  transform: translateY(3px) rotate(45deg);
}

.site-header--menu-open .site-header__toggle-bar:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

@media (max-width: 900px) {
  .site-header__toggle {
    display: flex;
    flex-direction: column;
  }

  .site-header__nav {
    position: fixed;
    inset: 64px 0 auto 0;
    background: radial-gradient(circle at top, rgba(198, 161, 90, 0.12), transparent 65%),
      rgba(5, 6, 8, 0.98);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), transform var(--transition-normal),
      visibility var(--transition-normal);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-6);
    gap: var(--space-3);
  }

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

  .site-header__nav-link--cta {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .site-header__subtitle {
    display: none;
  }
}

.site-header--no-js .site-header__nav {
  position: static;
  transform: none;
  opacity: 1;
  visibility: visible;
}

.site-header--no-js .site-header__toggle {
  display: none;
}