.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--header-height-mobile);
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: none;
}

.site-header__backdrop {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5, 6, 10, 0.98), rgba(5, 6, 10, 0.9));
  border-bottom: 1px solid var(--color-border-subtle);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(var(--blur-soft));
  -webkit-backdrop-filter: blur(var(--blur-soft));
}

.site-header__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  pointer-events: auto;
  min-width: 0;
  width: 100%;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
}

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

.site-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 0%, rgba(176, 39, 255, 0.9), transparent 60%), radial-gradient(circle at 80% 100%, rgba(244, 193, 95, 0.9), transparent 60%), rgba(7, 7, 15, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-invert);
  box-shadow: var(--shadow-subtle);
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.site-header__logo-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-main);
}

.site-header__logo-subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.site-header__nav {
  display: none;
}

.site-header__nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-header__nav-item {
  white-space: nowrap;
}

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

.site-header__nav-item--accent .site-header__nav-link--cta {
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(244, 193, 95, 0.7);
  background: radial-gradient(circle at 0 0, rgba(176, 39, 255, 0.25), transparent 55%), radial-gradient(circle at 100% 100%, rgba(244, 193, 95, 0.3), transparent 55%), rgba(7, 7, 15, 0.96);
  box-shadow: 0 0 0 1px rgba(244, 193, 95, 0.4), var(--shadow-subtle);
  color: var(--color-accent-strong);
}

.site-header__toggle {
  position: relative;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(7, 7, 15, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  pointer-events: auto;
}

.site-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary-strong), var(--color-accent));
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header__mobile-nav {
  position: fixed;
  top: var(--header-height-mobile);
  left: 0;
  right: 0;
  z-index: calc(var(--z-header) + 1);
  max-height: 0;
  overflow: hidden;
  background: radial-gradient(circle at top left, rgba(176, 39, 255, 0.22), transparent 55%), radial-gradient(circle at bottom right, rgba(244, 193, 95, 0.18), transparent 55%), var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border-subtle);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.9);
  transition: max-height var(--transition-slow), opacity var(--transition-slow);
  opacity: 0;
  pointer-events: none;
}

.site-header__mobile-inner {
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.site-header__mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: calc(100vh - var(--header-height-mobile) - var(--space-md));
  overflow-y: auto;
}

.site-header__mobile-item {
  border-radius: 10px;
}

.site-header__mobile-item--legal {
  margin-top: var(--space-sm);
}

.site-header__mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 0.9rem;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-main);
  background: rgba(18, 18, 30, 0.8);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__mobile-link--cta {
  background: linear-gradient(135deg, rgba(176, 39, 255, 0.9), rgba(244, 193, 95, 0.9));
  color: var(--color-text-invert);
  border-color: transparent;
}

.site-header--mobile-open .site-header__mobile-nav {
  max-height: calc(100dvh - var(--header-height-mobile));
  opacity: 1;
  pointer-events: auto;
}

.site-header--mobile-open .site-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header--mobile-open .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.site-header--mobile-open .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (min-width: 768px) {
  .site-header {
    height: var(--header-height-tablet);
  }
  .site-header__mobile-nav {
    top: var(--header-height-tablet);
  }
  .site-header--mobile-open .site-header__mobile-nav {
    max-height: calc(100dvh - var(--header-height-tablet));
  }
}

@media (min-width: 1024px) {
  .site-header {
    height: var(--header-height-desktop);
  }
  .site-header__mobile-nav {
    display: none;
  }
  .site-header__toggle {
    display: none;
  }
  .site-header__nav {
    display: block;
  }
  .site-header__inner {
    gap: var(--space-lg);
  }
  .site-header__nav-list {
    gap: var(--space-md);
    flex-wrap: nowrap;
  }
  .site-header__nav-link {
    font-size: 0.78rem;
  }
}

@media (max-width: 479.98px) {
  .site-header__logo-subtitle {
    display: none;
  }
}