.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background:
    radial-gradient(circle at 0 0, rgba(212, 175, 55, 0.12) 0, transparent 55%),
    radial-gradient(circle at 100% 0, rgba(14, 95, 75, 0.18) 0, transparent 55%),
    linear-gradient(180deg, rgba(5, 7, 16, 0.96), rgba(3, 4, 10, 0.96));
  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-8);
  padding-bottom: var(--space-8);
  gap: var(--space-10);
}

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

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
}

.site-header__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(212, 175, 55, 0.65);
  background: radial-gradient(circle at 30% 0, rgba(255, 255, 255, 0.2) 0, transparent 55%),
    linear-gradient(145deg, #05060a, #141522);
  font-family: var(--font-accent);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary-strong);
}

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

.site-header__title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-header__subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.site-header__nav {
  display: flex;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-header__nav-link {
  font-size: 0.86rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.25rem;
}

.site-header__nav-link--cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.4rem;
  border-radius: var(--radius-full);
  background:
    radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.35) 0, transparent 40%),
    linear-gradient(135deg, var(--color-primary), #f6dc8e);
  color: #030307;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid rgba(0, 0, 0, 0.8);
  box-shadow: 0 18px 35px var(--color-shadow-soft);
}

.site-header__nav-link--cta:hover {
  color: #030307;
}

.site-header__nav-item--highlight {
  margin-left: var(--space-4);
}

/* Mobile toggle */
.site-header__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(212, 175, 55, 0.55);
  background: radial-gradient(circle at 0 0, rgba(212, 175, 55, 0.22) 0, transparent 55%),
    linear-gradient(135deg, rgba(5, 7, 15, 0.98), rgba(4, 5, 12, 0.98));
  color: var(--color-text);
  cursor: pointer;
}

.site-header__toggle-text {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-header__toggle-box {
  position: relative;
  width: 1.25rem;
  height: 1.1rem;
}

.site-header__toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--color-primary-strong);
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal);
}

.site-header__toggle-line--top {
  top: 0;
}

.site-header__toggle-line--middle {
  top: 50%;
  transform: translateY(-50%);
}

.site-header__toggle-line--bottom {
  bottom: 0;
}

/* Mobile layout (default) */
.site-header__nav {
  position: absolute;
  inset-inline: 0;
  top: 100%;
  transform-origin: top;
  transform: scaleY(0.92);
  opacity: 0;
  pointer-events: none;
}

.site-header__nav-list {
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-8) var(--layout-gutter) var(--space-12);
  background: linear-gradient(180deg, rgba(3, 4, 10, 0.98), rgba(2, 3, 8, 0.98));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  gap: var(--space-6);
}

.site-header__nav-link {
  font-size: 0.8rem;
}

.site-header__inner {
  position: relative;
}

/* Open state */
.site-header--nav-open .site-header__nav {
  opacity: 1;
  pointer-events: auto;
  transform: scaleY(1);
}

.site-header--nav-open .site-header__toggle-line--top {
  top: 50%;
  transform: translateY(-50%) rotate(42deg);
}

.site-header--nav-open .site-header__toggle-line--middle {
  opacity: 0;
}

.site-header--nav-open .site-header__toggle-line--bottom {
  bottom: 50%;
  transform: translateY(50%) rotate(-42deg);
}

/* Desktop layout */
@media (min-width: 768px) {
  .site-header__inner {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    opacity: 1 !important;
    pointer-events: auto !important;
    transform: none !important;
  }

  .site-header__nav-list {
    position: static;
    flex-direction: row;
    background: transparent;
    padding: 0;
    border: none;
  }

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

@media (min-width: 1024px) {
  .site-header__title {
    font-size: 1.1rem;
  }

  .site-header__subtitle {
    font-size: 0.72rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-line {
    transition: none;
  }

  .site-header__nav {
    transition: none;
  }
}