/* ==========================================================================
   HEADER COMPONENT STYLES
   Modern, responsive header with navigation and cart functionality
   ========================================================================== */

/* Header Container */
.main-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: all var(--transition);
}

.main-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

/* Navigation Bar */
.main-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  min-height: 80px;
}

/* Brand/Logo */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  transition: transform var(--transition);
}

.navbar-brand:hover {
  transform: scale(1.02);
  text-decoration: none;
}

.brand-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  transition: transform var(--transition);
}

.brand-text {
  font-family: 'Playfair Display', serif;
  font-size: var(--text-2xl);
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}

@media (max-width: 480px) {
  .brand-text {
    font-size: var(--text-xl);
  }
  
  .brand-logo {
    width: 40px;
    height: 40px;
  }
}

/* Main Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: var(--text-base);
  text-decoration: none;
  border-radius: var(--radius);
  transition: all var(--transition);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-600);
  background: var(--primary-50);
  text-decoration: none;
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--primary-600);
  background: var(--primary-50);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--primary-500);
  border-radius: 50%;
}

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

/* Search Button */
.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.search-btn:hover {
  background: var(--primary-50);
  border-color: var(--primary-200);
  color: var(--primary-600);
  transform: scale(1.05);
}

/* Cart Button */
.header-cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--primary-500);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  min-height: 44px;
}

.header-cart-btn:hover {
  background: var(--primary-600);
  color: var(--text-inverse);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.header-cart-btn:active {
  transform: translateY(0);
}

/* Cart Badge */
.header-cart-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--error-500);
  color: var(--text-inverse);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  min-width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.header-cart-badge:empty {
  display: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
  margin: 2px 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Cart Preview Dropdown */
.cart-preview {
  position: absolute;
  top: calc(100% + 16px);
  right: 0;
  width: 380px;
  max-width: 90vw;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition);
}

.cart-preview.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cart-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--border-primary);
}

.cart-preview-title {
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.cart-preview-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.cart-preview-close:hover {
  background: var(--gray-100);
  color: var(--text-primary);
}

.cart-preview-body {
  max-height: 400px;
  overflow-y: auto;
}

.cart-preview-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-primary);
}

.cart-preview-item:last-child {
  border-bottom: none;
}

.cart-preview-image {
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
}

.cart-preview-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-preview-details {
  flex: 1;
  min-width: 0;
}

.cart-preview-name {
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 var(--space-1) 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-preview-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.cart-preview-price {
  font-weight: 600;
  color: var(--primary-600);
}

.cart-preview-footer {
  padding: var(--space-5);
  border-top: 1px solid var(--border-primary);
  background: var(--bg-secondary);
}

.cart-preview-total {
  display: flex;
  justify-content: between;
  align-items: center;
  margin-bottom: var(--space-4);
  font-weight: 600;
  color: var(--text-primary);
}

.cart-preview-actions {
  display: flex;
  gap: var(--space-3);
}

.cart-preview-btn {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition);
}

.cart-preview-btn-outline {
  background: transparent;
  color: var(--primary-600);
  border: 1px solid var(--primary-500);
}

.cart-preview-btn-outline:hover {
  background: var(--primary-50);
  text-decoration: none;
}

.cart-preview-btn-primary {
  background: var(--primary-500);
  color: var(--text-inverse);
  border: 1px solid var(--primary-500);
}

.cart-preview-btn-primary:hover {
  background: var(--primary-600);
  color: var(--text-inverse);
  text-decoration: none;
}

.cart-empty {
  padding: var(--space-8) var(--space-5);
  text-align: center;
  color: var(--text-muted);
}

.cart-empty-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .main-nav {
    gap: var(--space-6);
  }
  
  .nav-link {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
  }
}

@media (max-width: 768px) {
  .main-navbar {
    padding: var(--space-3) 0;
    min-height: 70px;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-primary);
    flex-direction: column;
    padding: var(--space-4);
    gap: 0;
    box-shadow: var(--shadow-lg);
  }

  .main-nav.active {
    display: flex;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: var(--space-4);
    border-radius: var(--radius);
    justify-content: flex-start;
  }

  .nav-link.active::after {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .search-btn {
    display: none;
  }

  .header-cart-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
  }

  .cart-preview {
    width: 320px;
    right: var(--space-4);
  }
}

@media (max-width: 480px) {
  .header-actions {
    gap: var(--space-2);
  }

  .header-cart-btn span:not(.header-cart-badge) {
    display: none;
  }

  .header-cart-btn {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
  }

  .cart-preview {
    width: calc(100vw - 32px);
    right: var(--space-4);
    left: var(--space-4);
  }
}

/* Animation for cart items */
.cart-preview-item {
  animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Smooth scroll behavior for anchor links */
html {
  scroll-behavior: smooth;
}

/* Header scroll effect */
@media (prefers-reduced-motion: no-preference) {
  .main-header {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
}