/* Header Specific Styles */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-bg-elevated);
  transition: background-color var(--duration-normal) var(--ease-out);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-6);
}

.site-logo {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

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

.main-nav {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: center;
}

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

.nav-list a {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-mahogany);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-list a:hover {
  color: var(--color-text-primary);
}

.nav-list a:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.icon-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
  background: transparent;
}

.icon-btn:hover {
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
}

.cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  background-color: var(--color-mahogany);
  color: var(--color-text-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 101;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg-primary);
  z-index: 99;
  padding: var(--space-6);
  padding-top: 100px;
  transform: translateX(-100%);
  transition: transform var(--duration-slow) var(--ease-out);
  overflow-y: auto;
}

.mobile-menu.is-active {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-bg-elevated);
}

.mobile-menu-title {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: var(--color-text-primary);
}

.mobile-menu-close {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: var(--text-xl);
  cursor: pointer;
  padding: var(--space-2);
  transition: color var(--duration-fast) var(--ease-out);
}

.mobile-menu-close:hover {
  color: var(--color-text-primary);
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav-list a {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: var(--color-text-primary);
  display: block;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-bg-elevated);
  transition: all var(--duration-fast) var(--ease-out);
}

.mobile-nav-list a:hover {
  color: var(--color-mahogany-light);
  padding-left: var(--space-4);
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-mahogany);
  color: var(--color-text-primary);
  padding: var(--space-2) var(--space-4);
  z-index: 1000;
  transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
  top: 0;
}

@media (max-width: 1024px) {
  .nav-list {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .main-nav {
    justify-content: flex-start;
    order: -1;
    flex: 0;
  }
  
  .header-container {
    justify-content: space-between;
  }
}

@media (max-width: 480px) {
  .header-actions .icon-btn:not(.cart-btn) {
    display: none;
  }
}