/* ===== DESIGN SYSTEM & GLOBAL STYLES ===== */
:root {
  /* Colors */
  --color-primary: #1a3a5c;
  --color-primary-light: #2c5282;
  --color-accent: #c9a84c;
  --color-accent-hover: #b8942f;
  --color-green: #33cc33;
  --color-green-hover: #2bb52b;
  --color-red: #e53e3e;
  --color-white: #ffffff;
  --color-off-white: #f8f9fa;
  --color-light-gray: #e2e8f0;
  --color-gray: #718096;
  --color-dark-gray: #4a5568;
  --color-dark: #1a202c;
  --color-black: #000000;
  --color-sale: #e53e3e;
  --color-announcement: #1a6b3c;

  /* Typography */
  --font-primary: 'Work Sans', sans-serif;
  --font-arabic: 'Tajawal', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3.5rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --header-height: 80px;
  --border-radius: 8px;
  --border-radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.15);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html[dir="rtl"] body {
  font-family: var(--font-arabic);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input {
  font-family: inherit;
}

/* Utility Classes */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section-title {
  text-align: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-dark);
  margin-bottom: var(--space-2xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin: var(--space-md) auto 0;
  border-radius: 2px;
}

/* Announcement Bar */
.announcement-bar {
  background: linear-gradient(135deg, var(--color-announcement), #2d8a56);
  color: var(--color-white);
  text-align: center;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.5px;
  position: relative;
  z-index: 100;
}

.announcement-bar p {
  animation: slideAnnouncement 20s linear infinite;
}

@keyframes slideAnnouncement {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-2%); }
}

/* Bulk Notice */
.bulk-notice {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-accent);
  text-align: center;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-md);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Mailing Section */
.mailing-section {
  background: var(--color-off-white);
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.mailing-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--color-dark);
}

.mailing-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  border: 2px solid var(--color-light-gray);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.mailing-form:focus-within {
  border-color: var(--color-primary);
}

.mailing-form input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  border: none;
  outline: none;
  font-size: var(--font-size-base);
  background: var(--color-white);
}

.mailing-form button {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-md) var(--space-xl);
  font-weight: 700;
  font-size: var(--font-size-sm);
  letter-spacing: 2px;
  transition: background var(--transition-fast);
}

.mailing-form button:hover {
  background: var(--color-primary);
}

/* Reasons Section */
.reasons-section {
  background: linear-gradient(135deg, #2d3748, #1a202c);
  color: var(--color-white);
  padding: var(--space-3xl) var(--space-xl);
}

.reasons-section .section-title {
  color: var(--color-white);
}

.reasons-section .section-title::after {
  background: var(--color-accent);
}

.reasons-grid {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: var(--space-2xl);
  flex-wrap: wrap;
  max-width: var(--container-max);
  margin: 0 auto;
}

.reason-item {
  text-align: center;
  flex: 0 0 150px;
  transition: transform var(--transition-normal);
}

.reason-item:hover {
  transform: translateY(-5px);
}

.reason-item img {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}

.reason-item:hover img {
  opacity: 1;
}

.reason-item p {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Cart Sidebar */
.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.cart-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 380px;
  max-width: 90vw;
  height: 100%;
  background: var(--color-white);
  z-index: 1000;
  box-shadow: var(--shadow-xl);
  transition: right var(--transition-normal);
  display: flex;
  flex-direction: column;
}

html[dir="rtl"] .cart-sidebar {
  right: auto;
  left: -400px;
  transition: left var(--transition-normal);
}

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

html[dir="rtl"] .cart-sidebar.active {
  left: 0;
  right: auto;
}

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

.cart-header h3 {
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.cart-close {
  font-size: 28px;
  color: var(--color-gray);
  transition: color var(--transition-fast);
}

.cart-close:hover {
  color: var(--color-dark);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
}

.empty-cart {
  text-align: center;
  color: var(--color-gray);
  padding: var(--space-2xl) 0;
}

.cart-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-light-gray);
}

.cart-item img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--border-radius);
}

.cart-item-details {
  flex: 1;
}

.cart-item-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xs);
}

.cart-item-code {
  color: var(--color-gray);
  font-size: var(--font-size-xs);
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.cart-item-price {
  font-weight: 700;
  color: var(--color-primary);
}

.cart-item-remove {
  color: var(--color-red);
  font-size: var(--font-size-xs);
  cursor: pointer;
  margin-top: var(--space-xs);
}

.cart-item-remove:hover {
  text-decoration: underline;
}

.cart-footer {
  padding: var(--space-lg);
  border-top: 2px solid var(--color-light-gray);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.cart-action-btn {
  display: block;
  width: 100%;
  padding: var(--space-md);
  text-align: center;
  border-radius: var(--border-radius);
  font-weight: 700;
  font-size: var(--font-size-sm);
  letter-spacing: 1px;
  margin-bottom: var(--space-sm);
  transition: all var(--transition-fast);
}

.whatsapp-btn {
  background: #25d366;
  color: var(--color-white);
}

.whatsapp-btn:hover {
  background: #1da851;
}

.email-btn {
  background: var(--color-primary);
  color: var(--color-white);
}

.email-btn:hover {
  background: var(--color-primary-light);
}

/* Product Modal */
.product-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.product-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.product-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 90%;
  max-width: 900px;
  max-height: 90vh;
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  z-index: 1002;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-xl);
}

.product-modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: 28px;
  color: var(--color-gray);
  z-index: 10;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

html[dir="rtl"] .modal-close {
  right: auto;
  left: var(--space-md);
}

.modal-close:hover {
  background: var(--color-off-white);
  color: var(--color-dark);
}

.modal-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.modal-image {
  padding: var(--space-xl);
  background: var(--color-off-white);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-image img {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  border-radius: var(--border-radius);
}

.modal-details {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.modal-item-code {
  font-size: var(--font-size-xs);
  color: var(--color-gray);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  line-height: 1.3;
}

.modal-pricing {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.modal-price {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-sale);
}

.modal-original-price {
  font-size: var(--font-size-lg);
  color: var(--color-gray);
  text-decoration: line-through;
}

.modal-sale-badge {
  background: var(--color-sale);
  color: var(--color-white);
  padding: 2px 10px;
  border-radius: 4px;
  font-size: var(--font-size-xs);
  font-weight: 700;
}

.modal-min-order {
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  background: rgba(26, 58, 92, 0.08);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius);
}

.modal-dimensions,
.modal-material {
  color: var(--color-dark-gray);
  font-size: var(--font-size-sm);
}

.modal-description {
  color: var(--color-dark-gray);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.modal-quantity {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.modal-quantity label {
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.qty-controls {
  display: flex;
  align-items: center;
  border: 2px solid var(--color-light-gray);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.qty-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  color: var(--color-dark);
  transition: background var(--transition-fast);
}

.qty-btn:hover {
  background: var(--color-off-white);
}

.qty-controls input {
  width: 50px;
  height: 40px;
  border: none;
  border-left: 2px solid var(--color-light-gray);
  border-right: 2px solid var(--color-light-gray);
  text-align: center;
  font-size: var(--font-size-base);
  font-weight: 600;
  outline: none;
}

.add-quote-btn {
  background: var(--color-green);
  color: var(--color-white);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--border-radius);
  font-weight: 700;
  font-size: var(--font-size-base);
  letter-spacing: 1px;
  transition: all var(--transition-fast);
  text-transform: uppercase;
}

.add-quote-btn:hover {
  background: var(--color-green-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.inquire-btn {
  display: block;
  text-align: center;
  padding: var(--space-md) var(--space-xl);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--border-radius);
  font-weight: 700;
  font-size: var(--font-size-sm);
  letter-spacing: 1px;
  transition: all var(--transition-fast);
}

.inquire-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Responsive Modal */
@media (max-width: 768px) {
  .modal-content {
    grid-template-columns: 1fr;
  }
  .modal-image {
    padding: var(--space-md);
  }
  .modal-details {
    padding: var(--space-lg);
  }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-off-white);
}
::-webkit-scrollbar-thumb {
  background: var(--color-light-gray);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray);
}

/* Loading animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}