/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* 18+ warning */
.age-warning {
  background: linear-gradient(90deg, #8b1a1a, #c0392b);
  color: #fff;
  font-size: var(--font-size-sm);
}

.age-warning__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
}

.age-warning__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
  font-weight: 800;
  font-size: 0.65rem;
  flex-shrink: 0;
}

.age-warning__text {
  margin: 0;
  color: #fff;
}

/* Main header */
.site-header__main {
  background: rgba(10, 14, 23, 0.92);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) 0;
}

/* Brand */
.site-header__brand { flex: 1 1 auto; min-width: 0; }

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

.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), #a29bfe);
  font-weight: 800;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.site-header__brand-title {
  font-size: var(--font-size-md);
  font-weight: 700;
}

.site-header__brand-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Nav */
.site-header__nav { display: flex; align-items: center; }

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.site-header__nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.site-header__nav-link--active {
  color: #fff;
  background: var(--color-primary-soft);
}

.site-header__nav-item--highlight .site-header__nav-link {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  padding: 0.4rem 1rem;
}

.site-header__nav-item--highlight .site-header__nav-link:hover {
  background: #7c6ef0;
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
}

.site-header__toggle-box {
  position: relative;
  width: 20px;
  height: 16px;
}

.site-header__toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: all var(--transition-fast);
}

.site-header__toggle-line:nth-child(1) { top: 0; }
.site-header__toggle-line:nth-child(2) { top: 7px; }
.site-header__toggle-line:nth-child(3) { bottom: 0; }

.site-header__toggle-text {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Open state */
.site-header__main--nav-open .site-header__toggle-line:nth-child(1) { top: 7px; transform: rotate(45deg); }
.site-header__main--nav-open .site-header__toggle-line:nth-child(2) { opacity: 0; }
.site-header__main--nav-open .site-header__toggle-line:nth-child(3) { bottom: 7px; transform: rotate(-45deg); }

/* Responsive */
@media (max-width: 880px) {
  .site-header__toggle { display: inline-flex; }

  .site-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: rgba(10, 14, 23, 0.98);
    border-bottom: 1px solid var(--color-border);
    transform: scaleY(0.95);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: all var(--transition-fast);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-5) var(--space-4);
  }

  .site-header__nav-link { width: 100%; }

  .site-header__main--nav-open .site-header__nav {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    transform: scaleY(1);
  }
}

@media (max-width: 520px) {
  .site-header__brand-tagline { display: none; }
}