/* Header styles for SCENA ZONE HUB */
.szh-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: radial-gradient(circle at top, rgba(255, 46, 139, 0.18), rgba(5, 4, 15, 0.98));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

.szh-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}

/* Branding */
.szh-header__branding {
  display: flex;
  align-items: center;
}

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

.szh-header__logo-mark {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: radial-gradient(circle at 30% 20%, rgba(255, 46, 139, 0.7), transparent 55%),
              radial-gradient(circle at 70% 80%, rgba(54, 209, 220, 0.7), transparent 55%),
              var(--color-surface);
  box-shadow: 0 0 18px rgba(255, 46, 139, 0.7);
  border: 2px solid rgba(255, 255, 255, 0.18);
}

.szh-header__logo-pixel {
  position: absolute;
  width: 6px;
  height: 6px;
  background-color: #fff;
}

.szh-header__logo-pixel--tl { top: 4px; left: 4px; }
.szh-header__logo-pixel--tr { top: 4px; right: 4px; }
.szh-header__logo-pixel--bl { bottom: 4px; left: 4px; }
.szh-header__logo-pixel--br { bottom: 4px; right: 4px; }

.szh-header__title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.szh-header__title {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.szh-header__subtitle {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

/* Navigation */
.szh-header__nav {
  display: flex;
}

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

.szh-header__nav-link {
  position: relative;
  font-family: var(--font-body);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  padding: 0.35rem 0;
}

.szh-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), #36d1dc);
  transition: width var(--transition-base);
}

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

.szh-header__nav-item--cta .szh-header__nav-link--cta {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: radial-gradient(circle at top left, rgba(255, 46, 139, 0.4), transparent 60%),
              var(--color-surface-alt);
  box-shadow: var(--shadow-soft);
}

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

/* Mobile toggle */
.szh-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: var(--color-text);
  background-color: rgba(10, 8, 25, 0.9);
}

.szh-header__toggle-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
}

.szh-header__toggle-bars span {
  width: 16px;
  height: 2px;
  border-radius: 1px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.szh-header__toggle-text {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* Toggle animation when active */
.szh-header--nav-open .szh-header__toggle[aria-expanded="true"] .szh-header__toggle-bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.szh-header--nav-open .szh-header__toggle[aria-expanded="true"] .szh-header__toggle-bars span:nth-child(2) {
  opacity: 0;
}

.szh-header--nav-open .szh-header__toggle[aria-expanded="true"] .szh-header__toggle-bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* Responsive behavior */
@media (max-width: 768px) {
  .szh-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .szh-header__subtitle {
    display: none;
  }

  .szh-header__toggle {
    display: inline-flex;
  }

  .szh-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: rgba(5, 4, 15, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    transform-origin: top;
    transform: scaleY(1);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow) ease, opacity var(--transition-base) ease;
    opacity: 0;
  }

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

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

  .szh-header--nav-open .szh-header__nav {
    max-height: 320px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .szh-header__nav,
  .szh-header__toggle-bars span {
    transition: none;
  }
}