/* ===== VARIABLES ===== */
:root {
  --primary-purple: #6b21a8;
  --purple-light: #8b5cf6;
  --purple-dark: #581c87;
  --accent-amber: #f59e0b;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-600: #4b5563;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* ===== TOP BAR ===== */
.top-bar {
  background: var(--primary-purple);
  color: white;
  padding: 8px 0;
  font-size: 0.875rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.top-bar-left .top-link {
  color: white;
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.top-bar-left .top-link:hover {
  color: var(--accent-amber);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.top-bar-right .top-link {
  color: white;
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.top-bar-right .top-link:hover {
  color: var(--accent-amber);
}

.social-icons {
  display: flex;
  gap: 12px;
}

.social-icons a {
  color: white;
  transition: var(--transition);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
}

.social-icons a:hover {
  color: var(--accent-amber);
  background: rgba(255,255,255,0.2);
  transform: translateY(-1px);
}

/* ===== MAIN HEADER ===== */
.main-header {
  background: white;
  padding: 15px 0;
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.main-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  gap: 30px;
}

.logo {
  flex-shrink: 0;
}

.logo-img {
  height: 50px;
  width: auto;
  transition: var(--transition);
}

.logo-img:hover {
  transform: scale(1.05);
}

/* ===== SEARCH BAR ===== */
.search-container {
  flex: 1;
  max-width: 600px;
  position: relative;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: 12px 50px 12px 20px;
  border: 2px solid var(--gray-200);
  border-radius: 25px;
  font-size: 1rem;
  transition: var(--transition);
  background: var(--gray-50);
  color: var(--gray-800);
}

.search-input::placeholder {
  color: var(--gray-600);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-purple);
  background: white;
  box-shadow: 0 0 0 3px rgba(107, 33, 168, 0.1);
}

.search-button {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary-purple);
  border: none;
  border-radius: 50%;
  color: white;
  padding: 8px;
  cursor: pointer;
  transition: var(--transition);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-button:hover {
  background: var(--purple-dark);
  transform: translateY(-50%) scale(1.1);
}

/* ===== USER ACTIONS ===== */
.user-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.action-btn {
  position: relative;
  background: none;
  border: none;
  color: var(--gray-600);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
  border-radius: var(--border-radius);
}

.action-btn:hover {
  color: var(--primary-purple);
  background: var(--gray-50);
}

.cart-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--accent-amber);
  color: var(--gray-900);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

/* ===== MAIN NAVIGATION ===== */
.main-navigation {
  background: var(--gray-100);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--gray-200);
}

.main-navigation .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 15px 20px;
  color: var(--gray-800);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

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

/* ===== MEGA MENU ===== */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 800px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}

.nav-item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-menu-content {
  padding: 20px;
}

.subcategories-loading {
  text-align: center;
  padding: 20px;
  color: var(--gray-600);
}

/* ===== MOBILE MENU TOGGLE ===== */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  gap: 4px;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: white;
  transition: var(--transition);
}

/* ===== MOBILE NAVIGATION ===== */
.mobile-navigation {
  position: fixed;
  top: 0;
  left: -100%;
  width: 300px;
  height: 100vh;
  background: white;
  box-shadow: var(--shadow-lg);
  z-index: 1100;
  transition: var(--transition);
}

.mobile-navigation.active {
  left: 0;
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--gray-200);
  background: var(--primary-purple);
  color: white;
}

.mobile-nav-close {
  background: none;
  border: none;
  color: white;
  font-size: 1.25rem;
  cursor: pointer;
}

/* ===== CART SIDEBAR ===== */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: white;
  box-shadow: var(--shadow-lg);
  z-index: 1200;
  transition: var(--transition);
}

.cart-sidebar.active {
  right: 0;
}

.cart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--gray-200);
}

.cart-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--gray-600);
}

.empty-cart-message {
  text-align: center;
  padding: 40px 20px;
  color: var(--gray-600);
}

.empty-cart-message i {
  font-size: 3rem;
  margin-bottom: 15px;
  color: var(--gray-300);
}

/* ===== SEARCH SUGGESTIONS ===== */
.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: none;
  max-height: 400px;
  overflow-y: auto;
}

.search-suggestions.active {
  display: block;
}

.suggestion-item {
  padding: 12px 20px;
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.suggestion-item:hover {
  background: var(--gray-50);
}

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

.suggestion-product {
  flex: 1;
}

.suggestion-brand {
  color: var(--gray-600);
  font-size: 0.9rem;
}

.suggestion-price {
  color: var(--primary-purple);
  font-weight: 600;
  margin-left: 15px;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .mega-menu {
    width: 600px;
  }
  
  .nav-link {
    padding: 15px 15px;
    font-size: 0.85rem;
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }
  
  .main-header .container {
    gap: 15px;
    padding: 0 15px;
  }
  
  .search-container {
    display: none;
  }
  
  .user-actions .action-btn:not(.cart-btn) {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .main-navigation {
    display: none;
  }
  
  .cart-sidebar {
    width: 100%;
    right: -100%;
  }
  
  .logo-img {
    height: 40px;
  }
}

@media (max-width: 480px) {
  .main-header .container {
    padding: 0 10px;
  }
  
  .logo-img {
    height: 35px;
  }
  
  .action-btn {
    padding: 6px;
    font-size: 1.1rem;
  }
  
  .cart-count {
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
  }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  .nav-link,
  .action-btn,
  .search-input,
  .search-button {
    transition: none;
  }
}

/* High contrast support */
@media (prefers-contrast: high) {
  .top-bar,
  .main-header,
  .main-navigation {
    background: var(--purple-dark);
    border-color: white;
  }
  
  .nav-link:hover {
    background: white;
    color: var(--purple-dark);
  }
}

/* Focus styles for keyboard navigation */
.search-input:focus-visible,
.action-btn:focus-visible,
.nav-link:focus-visible,
.mobile-menu-toggle:focus-visible {
  outline: 2px solid var(--accent-amber);
  outline-offset: 2px;
}

/* Loading states */
.search-container.loading .search-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f59e0b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 12a9 9 0 11-6.219-8.56'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}

/* Print styles */
@media print {
  .top-bar,
  .main-navigation,
  .user-actions,
  .search-container {
    display: none;
  }
  
  .main-header {
    background: white !important;
    border-bottom: 1px solid #000;
  }
  
  .logo-img {
    filter: none !important;
  }
}