/* Navigation Bar Styles */

.navigation {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  height: var(--nav-height);
  border-bottom: 1px solid #e0e0e0;
}

.navigation__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navigation__logo a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: bold;
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.navigation__logo a:hover {
  transform: scale(1.05);
}

.navigation__logo i {
  font-size: var(--font-size-2xl);
}

.navigation__mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  min-width: 44px;
  min-height: 44px;
}

.navigation__menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.navigation__link {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), 
              background-color var(--transition-fast);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.navigation__link:hover {
  color: var(--color-accent);
  background-color: #f0f0f0;
}

.navigation__link--active {
  color: var(--color-accent);
  font-weight: 600;
}

.navigation__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.navigation__cart {
  position: relative;
  color: var(--color-text-primary);
  font-size: var(--font-size-xl);
  padding: var(--spacing-sm);
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.navigation__cart:hover {
  color: var(--color-accent);
}

.navigation__cart-badge {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--color-error);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: bold;
  min-width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.navigation__cart-badge[data-count="0"] {
  display: none;
}

.navigation__cart-badge--pulse {
  animation: pulse 0.3s ease;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

/* 移动端样式 */
@media (max-width: 767px) {
  .navigation__mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .navigation__menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: #ffffff;
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid #e0e0e0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base),
                opacity var(--transition-base),
                visibility var(--transition-base);
  }

  .navigation__menu--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navigation__link {
    width: 100%;
    justify-content: center;
  }
}