/* Age Warning Banner */
.age-warning-banner {
  background-color: var(--color-danger);
  color: white;
  padding: var(--space-2) 0;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
}

.age-warning-banner p {
  margin: 0;
  color: white;
}

/* Header Layout */
.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-logo:hover {
  color: var(--color-primary-hover);
}

/* Navigation */
.primary-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--space-2);
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
  border-radius: 2px;
}

/* Mobile Styles */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .primary-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg);
    padding: var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    border-top: 1px solid var(--color-border);
  }
  
  .primary-nav.is-open {
    transform: translateX(0);
  }
  
  .nav-list {
    flex-direction: column;
    gap: var(--space-4);
    width: 100%;
  }
  
  .nav-link {
    font-size: var(--text-lg);
    display: block;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
  }
  
  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  
  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}