.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 6, 10, 0.96), rgba(5, 6, 10, 0.9), transparent);
  border-bottom: 1px solid rgba(39, 243, 255, 0.16);
}
.site-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height-desktop);
  gap: var(--space-lg);
}
.site-header .brand-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-width: 0;
}
.site-header .brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid rgba(39, 243, 255, 0.7);
  background: radial-gradient(circle at 30% 0, rgba(39, 243, 255, 0.9), rgba(39, 243, 255, 0.1)), radial-gradient(circle at 70% 100%, rgba(255, 122, 26, 0.8), rgba(255, 122, 26, 0.1));
  box-shadow: 0 0 18px rgba(39, 243, 255, 0.8);
}
.site-header .brand-title {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.site-header .brand-title-main {
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: var(--font-weight-heavy);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--color-text);
}
.site-header .brand-title-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}
.site-header .header-nav-toggle {
  display: none;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  width: 40px;
  height: 32px;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: row;
  gap: 0;
  cursor: pointer;
  background: rgba(5, 6, 10, 0.9);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}
.site-header .header-nav-toggle:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 1px var(--color-focus-ring), 0 0 0 3px rgba(39, 243, 255, 0.4);
}
.site-header .header-nav-toggle-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 14px;
}
.site-header .header-nav-toggle-bar {
  display: block;
  width: 18px;
  height: 1px;
  background-color: var(--color-text);
  position: relative;
  margin: 0;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.site-header .header-nav-toggle-bar::before,
.site-header .header-nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1px;
  background-color: var(--color-text);
  transition: transform var(--transition-fast), top var(--transition-fast), opacity var(--transition-fast);
}
.site-header .header-nav-toggle-bar::before {
  top: -5px;
}
.site-header .header-nav-toggle-bar::after {
  top: 5px;
}
.site-header.header-nav-open .header-nav-toggle-bar {
  background-color: transparent;
}
.site-header.header-nav-open .header-nav-toggle-bar::before {
  top: 0;
  transform: rotate(45deg);
}
.site-header.header-nav-open .header-nav-toggle-bar::after {
  top: 0;
  transform: rotate(-45deg);
}
.site-header .header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  min-width: 0;
}
.site-header .header-nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-header .header-nav-item {
  display: flex;
}
.site-header .nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  border: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}
.site-header .nav-link:hover {
  color: var(--color-text);
  border-color: rgba(39, 243, 255, 0.5);
  background-color: rgba(39, 243, 255, 0.08);
  box-shadow: 0 0 16px rgba(39, 243, 255, 0.4);
}
.site-header .nav-link.is-active {
  color: #020308;
  background: linear-gradient(90deg, #27f3ff, #ff7a1a);
  border-color: transparent;
  box-shadow: 0 0 22px rgba(39, 243, 255, 0.7);
}
.site-header .header-nav-cta {
  display: flex;
  align-items: center;
}
.header-state-a .header-inner {
  justify-content: space-between;
}
.header-state-b .header-inner {
  justify-content: flex-start;
  gap: var(--space-2xl);
}
.header-state-b .header-nav {
  flex: 1 1 auto;
  justify-content: space-between;
}
.header-state-c .header-inner {
  flex-wrap: wrap;
  align-items: flex-start;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}
.header-state-c .brand-lockup {
  flex: 0 0 auto;
}
.header-state-c .header-nav {
  flex: 1 1 100%;
  margin-top: var(--space-sm);
  justify-content: space-between;
}
@media (max-width: 1023.98px) {
  .site-header .header-inner {
    height: var(--header-height-tablet);
  }
  .site-header .header-nav-toggle {
    display: inline-flex;
  }
  .site-header .header-nav {
    display: none;
  }
  .site-header.header-nav-open .header-nav {
    display: flex;
    position: absolute;
    inset-inline: 0;
    top: 100%;
    padding: var(--space-md) var(--space-lg) var(--space-lg);
    background: radial-gradient(circle at top, rgba(39, 243, 255, 0.12), transparent 55%), #05060a;
    border-bottom: 1px solid rgba(39, 243, 255, 0.4);
    flex-direction: column;
    gap: var(--space-md);
  }
  .site-header.header-nav-open .header-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
  .site-header.header-nav-open .nav-link {
    width: 100%;
    justify-content: flex-start;
  }
  .site-header.header-nav-open .header-nav-cta {
    justify-content: flex-start;
  }
}
@media (max-width: 767.98px) {
  .site-header .header-inner {
    height: var(--header-height-mobile);
    gap: var(--space-md);
  }
  .site-header .brand-title-main {
    font-size: 12px;
    letter-spacing: 0.22em;
  }
  .site-header .brand-title-sub {
    display: none;
  }
  .site-header .header-nav-toggle {
    width: 36px;
    height: 30px;
  }
}
@media (max-width: 479.98px) {
  .site-header .brand-mark {
    width: 28px;
    height: 28px;
  }
  .site-header .brand-title-main {
    font-size: 11px;
    letter-spacing: 0.18em;
  }
}

/* --- shared header layout fix (basic sites) --- */
.site-header .header-inner,
.header .header-inner,
.header-shell > .container > .header-inner,
.header-shell > .container-wide.header-inner,
.ken-header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem;
  max-width: 100%;
  min-width: 0;
  width: 100%;
}

.header-brand-wrapper,
.header-brand-wrap,
.header-brand-block,
.ken-header-brand,
.site-header-zone-brand,
.header-shell .header-brand,
.site-header .brand-lockup {
  flex: 0 1 auto;
  min-width: 0;
  max-width: min(100%, 70vw);
}

.header-nav,
.ken-header-nav,
.site-header-zone-nav,
.header-center-block {
  flex: 1 1 auto;
  min-width: 0;
}

.header-toggle,
.header-nav-toggle,
.nav-toggle,
.ken-header-toggle,
.header-menu-toggle,
.js-header-toggle {
  flex: 0 0 auto;
  margin-left: auto;
  z-index: 3;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
  flex-shrink: 0;
}

.header-shell .header-actions {
  flex: 0 0 auto;
  margin-left: auto;
}

.header-layout--center .header-brand-wrapper,
.header-layout-centered .header-brand-block,
.header-layout--stack .header-inner,
.header-layout-stacked .header-inner,
.header-layout-b .header-brand-wrap,
.header-layout-c .header-brand-wrap,
.ken-header.nav-align-center .ken-header-inner,
.ken-header.nav-align-right .ken-header-inner {
  position: static;
  transform: none;
  order: unset;
}

.header-layout--center .header-inner,
.header-layout--stack .header-inner {
  flex-direction: row;
  flex-wrap: nowrap;
}

.site-header-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: 100%;
  min-width: 0;
  width: 100%;
}

.site-header-zone-brand {
  margin-right: auto;
}

.site-header-zone-toggle {
  margin-left: auto;
}

@media (max-width: 1023.98px) {
  .site-header-zone-nav,
  .site-header:not(.header-nav-open) .header-inner > .header-nav.nav-primary,
  .header-nav-list--desktop,
  .header-cta-group,
  .header-utilities,
  .header-search,
  .header-profile,
  .header-search-toggle,
  .header-shell .header-cta,
  .header-center-block .nav-primary,
  .ken-header-nav-list--desktop {
    display: none !important;
  }

  .header-toggle,
  .header-nav-toggle,
  .nav-toggle,
  .ken-header-toggle,
  .header-menu-toggle,
  .js-header-toggle,
  .site-header-zone-toggle {
    display: inline-flex !important;
  }

  .header-inner,
  .site-header-grid {
    grid-template-columns: minmax(0, 1fr) auto !important;
    grid-template-rows: auto !important;
  }
}

@media (min-width: 1024px) {
  .header-toggle,
  .header-nav-toggle,
  .nav-toggle,
  .ken-header-toggle,
  .header-menu-toggle,
  .js-header-toggle,
  .site-header-zone-toggle {
    display: none !important;
  }
}

@media (max-width: 1023.98px) {
  .ken-header-inner {
    flex-wrap: wrap;
    align-items: center;
  }
  .ken-header-brand {
    flex: 1 1 auto;
    min-width: 0;
  }
  .ken-header-toggle {
    order: 2;
    margin-left: auto;
  }
  .ken-header-nav {
    order: 3;
    flex: 1 1 100%;
    width: 100%;
  }
}

@media (max-width: 767.98px) {
  .header-shell .header-inner {
    grid-template-columns: minmax(0, 1fr) auto !important;
  }
  .header-shell .header-utilities {
    display: none !important;
  }
  .header-shell > .container > .header-inner > .header-toggle {
    display: inline-flex !important;
    order: 3;
    grid-column: 2;
    grid-row: 1;
  }
}