.header-shell {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(6, 8, 14, 0.98), rgba(6, 8, 14, 0.96), rgba(6, 8, 14, 0.9));
  border-bottom: 1px solid rgba(60, 69, 96, 0.9);
}
.header-inner {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-md);
  min-height: var(--header-height);
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}
.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-width: 0;
}
.header-brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  max-width: 100%;
}
.header-brand-mark {
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 0.4rem;
  border: 1px solid rgba(168, 85, 255, 0.7);
  background: radial-gradient(circle at 20% 0%, rgba(168, 85, 255, 0.9), rgba(34, 227, 197, 0.3), rgba(6, 8, 14, 1));
  box-shadow: 0 0 0 1px rgba(10, 14, 24, 1), 0 0 35px rgba(168, 85, 255, 0.75);
}
.header-brand-name {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.header-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 0;
}
.header-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}
.header-nav-item {
  flex: 0 0 auto;
}
.header-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.3rem;
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  white-space: nowrap;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}
.header-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.15rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-uv), var(--color-accent-teal), transparent);
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}
.header-nav-link:hover,
.header-nav-link:focus-visible {
  color: var(--color-text);
}
.header-nav-link:hover::after,
.header-nav-link:focus-visible::after {
  transform: scaleX(1);
}
.header-nav-link--active {
  color: var(--color-accent-teal);
}
.header-nav-link--active::after {
  transform: scaleX(1);
}
.header-utilities {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--space-sm);
  min-width: 0;
}
.header-search {
  min-width: 0;
  flex: 1 1 0;
  max-width: 260px;
}
.header-search-input {
  width: 100%;
  max-width: 100%;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  background: rgba(12, 16, 26, 0.98);
  color: var(--color-text-soft);
  font-size: var(--font-size-xs);
}
.header-search-input::placeholder {
  color: var(--color-text-soft);
}
.header-search-input:focus-visible {
  border-color: var(--color-accent-teal);
  box-shadow: 0 0 0 1px rgba(34, 227, 197, 0.4);
}
.header-profile {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}
.header-profile-avatar {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  background: radial-gradient(circle at 20% 0%, rgba(34, 227, 197, 0.3), rgba(21, 25, 37, 1));
}
.header-profile-name {
  font-size: var(--font-size-xs);
  color: var(--color-text-soft);
}
.header-cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}
.header-toggle {
  display: none;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  background: rgba(21, 25, 37, 0.96);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  padding: 0;
  cursor: pointer;
}
.header-toggle-bar {
  display: block;
  width: 1.2rem;
  height: 2px;
  margin: 0;
  border-radius: 999px;
  background: var(--color-text-soft);
  transition: transform var(--transition-fast), opacity var(--transition-fast), background var(--transition-fast);
}
.header-shell.header-mobile-open .header-toggle-bar:first-child {
  transform: translateY(3px) rotate(45deg);
}
.header-shell.header-mobile-open .header-toggle-bar:last-child {
  transform: translateY(-3px) rotate(-45deg);
}
.header-layout--brand-center .header-inner {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto auto;
  row-gap: var(--space-xs);
}
.header-layout--brand-center .header-brand {
  justify-content: center;
}
.header-layout--brand-center .header-nav {
  order: 2;
}
.header-layout--brand-center .header-utilities {
  position: absolute;
  inset: 0;
  right: var(--space-lg);
  justify-content: flex-end;
  pointer-events: none;
}
.header-layout--brand-center .header-utilities > * {
  pointer-events: auto;
}
.header-layout--brand-split .header-inner {
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 2.2fr) minmax(0, 1.2fr);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@media (max-width: 1279.98px) {
  .header-inner {
    grid-template-columns: minmax(0, auto) minmax(0, 1fr) auto;
  }
}
@media (max-width: 1023.98px) {
  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    row-gap: var(--space-sm);
  }
  .header-brand {
    order: 1;
  }
  .header-nav {
    order: 3;
    grid-column: 1 / -1;
    justify-content: flex-start;
    display: block;
  }
  .header-nav-list {
    justify-content: flex-start;
    row-gap: var(--space-xs);
  }
  .header-toggle {
    order: 2;
    justify-self: end;
  }
}
@media (max-width: 767.98px) {
  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto;
    row-gap: 0;
  }
  .header-brand {
    justify-content: flex-start;
  }
  .header-nav {
    display: block;
    grid-column: 1 / -1;
  }
  .header-nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .header-nav-item {
    border-top: 1px solid var(--color-border-subtle);
  }
  .header-nav-item:last-child {
    border-bottom: 1px solid var(--color-border-subtle);
  }
  .header-nav-link {
    padding: 0.75rem 0.25rem;
    width: 100%;
    justify-content: space-between;
  }
  .header-toggle {
    display: inline-flex;
  }
  .header-shell:not(.header-mobile-open) .header-nav {
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transform: translateY(-4px);
    transition: max-height var(--transition-slow), opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }
  .header-shell.header-mobile-open .header-nav {
    max-height: 70vh;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    background: radial-gradient(circle at top left, rgba(168, 85, 255, 0.12), rgba(6, 8, 14, 0.98));
    margin-top: var(--space-sm);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: 0 var(--space-sm);
  }
}
@media (max-width: 479.98px) {
  .header-brand-name {
    font-size: 0.7rem;
    letter-spacing: 0.18em;
  }
  .header-cta-group {
    display: none;
  }
}

/* --- 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;
  }
}

.header-shell > .container > .header-inner {
  display: grid !important;
}