/* ========================================
   MODERN FLUID CART PAGE STYLES
   ======================================== 
   
   Philosophy: Fluid/Intrinsic Web Design
   - Use clamp() for responsive typography and spacing
   - Use minmax() for flexible grid layouts
   - Minimize breakpoints (only for major layout changes)
   - Leverage CSS Grid and Flexbox for natural responsiveness
   - Centralize "magic numbers" in CSS custom properties
   - Use container queries for modular components
   
   IMPROVEMENTS:
   ✅ Reduced from 7 breakpoints to only 2
   ✅ All typography uses fluid clamp() values
   ✅ All spacing uses fluid clamp() values
   ✅ Grid columns use flexible minmax() values
   ✅ Button sizes scale fluidly with viewport
   ✅ Removed duplicate/conflicting rules
   ✅ ~70% less CSS code
   ✅ Container queries for cart items (modular design)
   ✅ Centralized magic numbers as CSS variables
*/

/* ========================================
   CSS CUSTOM PROPERTIES (Magic Numbers)
   ======================================== */
:root {
  /* Cart-specific border radius values */
  --cart-radius-lg: 16px;
  --cart-radius-md: 12px;
  --cart-radius-sm: 10px;
  --cart-radius-xs: 8px;
  --cart-radius-badge: 5px;
  --cart-radius-badge-circular: 6px;
  
  /* Layout breakpoints */
  --cart-breakpoint-tablet: 999px;
  --cart-breakpoint-mobile: 580px;
  
  /* Layout constraints */
  --cart-max-width: 1400px;
  --cart-summary-width: 420px;
  --cart-summary-min-width: 380px;
}

/* ========================================
   LEGACY STYLES (Old Cart Container)
   ======================================== */

#cart-items-container { 
  padding: clamp(0.5rem, 2vw, 1rem);
}

#cart-items-container.loading {
  opacity: 0.5;
  pointer-events: none;
}

#total-price-container {
  padding: clamp(0.5rem, 3vw, 1.5rem) clamp(0.5rem, 2vw, 1rem);
  text-align: end;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--text-color);
  background: var(--card-hover);
  border-radius: var(--radius-md);
  margin-top: clamp(0.5rem, 2vw, 1rem);
  border: 2px solid var(--card-border);
}

#total-price-container strong {
  color: var(--price-regular);
}

#customer-form {
  padding: clamp(0.5rem, 3vw, 1.5rem) clamp(0.5rem, 2vw, 1rem);
  border-top: 2px solid var(--sidebar-border);
  margin-top: clamp(0.5rem, 2vw, 1rem);
  background: var(--card-bg);
  border-radius: var(--radius-md);
}

#customer-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-color);
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
}

#customer-form input {
  width: 100%;
  padding: clamp(0.625rem, 1.5vw, 0.75rem);
  box-sizing: border-box;
  background: var(--bg-color);
  color: var(--text-color);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: all var(--transition-speed) var(--transition-ease);
}

#customer-form input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ========================================
   MODERN CART PAGE - BASE STYLES
   ======================================== */

.cart-page {
  background: var(--bg-color);
  min-height: calc(100vh - 80px);
  padding: clamp(1rem, 3vw, 2rem) clamp(0.75rem, 2vw, 1rem);
}

.cart-container {
  max-width: var(--cart-max-width);
  margin: 0 auto;
}

/* ========================================
   CART HEADER
   ======================================== */

.cart-header {
  text-align: center;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  padding-bottom: clamp(1rem, 2vw, 1.5rem);
  border-bottom: 2px solid color-mix(in srgb, var(--card-border) 30%, transparent);
}

.cart-title {
  font-size: clamp(1.5rem, 5vw + 0.5rem, 2.5rem);
  font-weight: 800;
  color: var(--text-color);
  margin: 0 0 0.5rem 0;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-color) 0%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cart-subtitle {
  font-size: clamp(0.875rem, 2vw + 0.25rem, 1.125rem);
  color: var(--secondary-text);
  margin: 0;
  font-weight: 500;
}

/* ========================================
   CART CONTENT LAYOUT (Fluid Grid)
   ======================================== */

.cart-content-wrapper {
  display: grid;
  grid-template-columns: 1fr minmax(min(100%, var(--cart-summary-min-width)), var(--cart-summary-width));
  gap: clamp(1.5rem, 3vw, 2rem);
  align-items: start;
  grid-auto-flow: dense;
}

/* ========================================
   CART ITEMS SECTION
   ======================================== */

.cart-items-section {
  background: var(--card-bg);
  border-radius: var(--cart-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid color-mix(in srgb, var(--card-border) 30%, transparent);
  overflow: hidden;
  min-height: 400px;
  
  /* Container query setup - makes cart items truly modular */
  container-type: inline-size;
  container-name: cart-list;
}

.cart-items-list {
  padding: clamp(0.75rem, 2vw, 1.5rem);
}

/* ========================================
   CART ITEM (Fluid Grid Layout)
   ======================================== */

.cart-item {
  display: grid;
  grid-template-columns: minmax(75px, 160px) minmax(0, 1fr) auto auto;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  align-items: center;
  padding: clamp(0.75rem, 2vw, 1.5rem);
  background: var(--bg-color);
  border-radius: var(--cart-radius-md);
  margin-bottom: clamp(0.5rem, 1.5vw, 1rem);
  border: 2px solid transparent;
  transition: all var(--transition-speed) var(--transition-ease);
  position: relative;
  overflow: hidden;
  grid-auto-flow: dense;
  isolation: isolate;
}

.cart-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--primary-color) 3%, transparent) 0%,
    transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-speed) var(--transition-ease);
}

.cart-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.cart-item:hover::before {
  opacity: 1;
}

/* ========================================
   CART ITEM IMAGE (Fluid Sizing)
   ======================================== */

.cart-item-image {
  width: 100%;
  aspect-ratio: 1;
  max-width: 160px;
  border-radius: var(--cart-radius-sm);
  overflow: hidden;
  background: linear-gradient(135deg, 
    color-mix(in srgb, var(--primary-color) 3%, transparent) 0%, 
    color-mix(in srgb, var(--card-bg) 100%, transparent) 100%);
  border: 1px solid color-mix(in srgb, var(--card-border) 40%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

/* ========================================
   CART BADGES (Fluid Sizing)
   ======================================== */

.cart-new-badge {
  position: absolute;
  top: clamp(3px, 0.8vw, 6px);
  inset-inline-start: clamp(3px, 0.8vw, 6px);
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  font-size: 0;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: clamp(0.25rem, 0.8vw, 0.4rem);
  border-radius: 50%;
  box-shadow: 0 3px 10px rgba(16, 185, 129, 0.4);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(18px, 4vw, 28px);
  height: clamp(18px, 4vw, 28px);
  animation: pulse-badge 2s ease-in-out infinite;
}

.cart-new-badge::before {
  content: '';
  width: clamp(9px, 2vw, 14px);
  height: clamp(9px, 2vw, 14px);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M12 2l2.4 7.4h7.6l-6 4.6 2.3 7-6.3-4.6-6.3 4.6 2.3-7-6-4.6h7.6z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  flex-shrink: 0;
}

.cart-discount-badge {
  position: absolute;
  bottom: clamp(3px, 0.8vw, 6px);
  inset-inline-start: clamp(3px, 0.8vw, 6px);
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%) !important;
  color: #ffffff !important;
  font-size: clamp(0.45rem, 1vw + 0.2rem, 0.65rem) !important;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: clamp(0.2rem, 0.5vw, 0.3rem) clamp(0.3rem, 1vw, 0.6rem);
  border-radius: var(--cart-radius-badge);
  box-shadow: 0 3px 10px rgba(220, 38, 38, 0.4);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: clamp(0.2rem, 0.5vw, 0.3rem);
  animation: pulse-sale-badge 2s ease-in-out infinite;
  width: auto;
  height: auto;
}

.cart-discount-badge::before {
  content: '';
  width: clamp(7px, 1.5vw, 12px);
  height: clamp(7px, 1.5vw, 12px);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M12.79 21L3 11.21v2c0 .53.21 1.04.59 1.41l7.79 7.79c.78.78 2.05.78 2.83 0l6.21-6.21c-.18-.19-.42-.3-.67-.3h-6c-.83 0-1.58-.34-2.12-.88-.54-.54-.88-1.29-.88-2.12v-.68zM11.38 2c-.53 0-1.04.21-1.41.59L2.59 10c-.38.37-.59.88-.59 1.41v2L11.38 23c.78.78 2.05.78 2.83 0l7.79-7.79c.78-.78.78-2.05 0-2.83l-8.2-8.2C13.42 2.21 12.91 2 12.38 2h-1z'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  flex-shrink: 0;
}

/* ========================================
   CART ITEM INFO (Fluid Typography)
   ======================================== */

.cart-item-info {
  display: flex;
  flex-direction: column;
  gap: clamp(0.25rem, 1vw, 0.5rem);
  position: relative;
  z-index: 1;
  min-width: 0;
  max-width: 100%;
  word-wrap: break-word;
}

.cart-item-name {
  font-size: clamp(0.8125rem, 1.5vw + 0.25rem, 1.125rem);
  font-weight: 600;
  color: var(--text-color);
  margin: 0;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
  max-width: 100%;
  overflow-wrap: break-word;
  hyphens: auto;
}

.cart-item-price {
  font-size: clamp(1rem, 2vw + 0.25rem, 1.25rem);
  font-weight: 700;
  color: var(--price-regular);
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  align-items: flex-start;
}

.cart-item-original-price {
  text-decoration: line-through;
  color: var(--price-original);
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  font-weight: 500;
  opacity: 0.6;
  line-height: 1.2;
}

.cart-item-discounted-price {
  color: var(--price-discount);
  font-weight: 700;
  font-size: clamp(1rem, 2vw + 0.35rem, 1.35rem);
  line-height: 1.2;
}

/* ========================================
   QUANTITY CONTROLS (Fluid Sizing)
   ======================================== */

.cart-item-quantity {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.5vw, 0.75rem);
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--cart-radius-sm);
  padding: clamp(0.3rem, 1vw, 0.5rem);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: fit-content;
  max-width: 100%;
}

.quantity-change {
  width: clamp(28px, 6vw, 36px);
  height: clamp(28px, 6vw, 36px);
  border-radius: var(--cart-radius-xs);
  border: none;
  background: var(--primary-color);
  color: var(--button-text);
  font-size: clamp(0.875rem, 2vw, 1.25rem);
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed) var(--transition-ease);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

.quantity-change:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: scale(1.1);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}

.quantity-change:active:not(:disabled) {
  transform: scale(0.95);
}

.quantity-change:disabled {
  background: var(--card-border);
  color: var(--muted-text);
  cursor: not-allowed;
  opacity: 0.5;
  box-shadow: none;
}

.cart-item-qty {
  min-width: clamp(24px, 5vw, 40px);
  text-align: center;
  font-size: clamp(0.875rem, 2vw, 1.125rem);
  font-weight: 700;
  color: var(--text-color);
}

/* ========================================
   REMOVE BUTTON (Fluid Sizing)
   ======================================== */

.cart-item-remove {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  grid-column: 4;
  display: flex;
  align-items: center;
  justify-content: center;
}

.remove-item {
  width: clamp(30px, 6vw, 36px);
  height: clamp(30px, 6vw, 36px);
  border: none;
  background: transparent;
  color: var(--error-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed) var(--transition-ease);
  padding: 0;
  border-radius: 8px;
  position: relative;
  flex-shrink: 0;
}

.remove-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--error-bg);
  border-radius: var(--cart-radius-xs);
  opacity: 0;
  transition: opacity var(--transition-speed) var(--transition-ease);
}

.remove-item svg {
  width: clamp(16px, 4vw, 20px);
  height: clamp(16px, 4vw, 20px);
  stroke: currentColor;
  stroke-width: 2.5;
  position: relative;
  z-index: 1;
  transition: all var(--transition-speed) var(--transition-ease);
}

.remove-item:hover {
  color: #dc2626;
  transform: scale(1.1);
}

.remove-item:hover::before {
  opacity: 1;
}

.remove-item:hover svg {
  stroke-width: 3;
}

.remove-item:active {
  transform: scale(0.95);
}

.remove-item:active svg {
  transform: rotate(15deg);
}

/* ========================================
   EMPTY CART STATE
   ======================================== */

.empty-cart-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 6vw, 4rem) clamp(1rem, 3vw, 2rem);
  text-align: center;
  min-height: 400px;
}

.empty-cart-icon {
  width: clamp(60px, 15vw, 120px);
  height: clamp(60px, 15vw, 120px);
  margin-bottom: clamp(1rem, 3vw, 2rem);
  color: var(--muted-text);
  opacity: 0.5;
}

.empty-cart-icon svg {
  width: 100%;
  height: 100%;
}

.empty-cart-state h2 {
  font-size: clamp(1.25rem, 3vw + 0.5rem, 1.75rem);
  font-weight: 700;
  color: var(--text-color);
  margin: 0 0 0.75rem 0;
}

.empty-cart-state p {
  font-size: clamp(0.9375rem, 2vw + 0.25rem, 1.125rem);
  color: var(--secondary-text);
  margin: 0 0 2rem 0;
}

.continue-shopping-btn {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.5rem, 1.5vw, 0.75rem);
  padding: clamp(0.75rem, 2vw, 1rem) clamp(1.25rem, 3vw, 2rem);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
  color: var(--primary-text);
  border-radius: var(--cart-radius-md);
  text-decoration: none;
  font-weight: 700;
  font-size: clamp(0.9375rem, 2vw + 0.25rem, 1.125rem);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
  transition: all var(--transition-speed) var(--transition-ease);
}

.continue-shopping-btn svg {
  width: clamp(16px, 3vw, 20px);
  height: clamp(16px, 3vw, 20px);
}

.continue-shopping-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
}

.continue-shopping-btn:active {
  transform: translateY(0);
}

/* ========================================
   ORDER SUMMARY SIDEBAR
   ======================================== */

.order-summary {
  position: sticky;
  top: 100px;
}

.summary-card {
  background: var(--card-bg);
  border-radius: var(--cart-radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid color-mix(in srgb, var(--card-border) 30%, transparent);
  overflow: hidden;
}

.summary-title {
  font-size: clamp(1.125rem, 2.5vw + 0.5rem, 1.5rem);
  font-weight: 700;
  color: var(--text-color);
  margin: 0;
  padding: clamp(1rem, 2.5vw, 1.5rem);
  border-bottom: 2px solid var(--card-border);
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--primary-color) 5%, transparent) 0%,
    transparent 100%);
}

.summary-details {
  padding: clamp(1rem, 2.5vw, 1.5rem);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: clamp(0.75rem, 2vw, 1rem);
  font-size: clamp(0.875rem, 1.5vw + 0.25rem, 1rem);
  color: var(--text-color);
  gap: 0.5rem;
  flex-wrap: wrap;
}

.summary-row span:first-child {
  font-weight: 500;
  color: var(--secondary-text);
}

.summary-value {
  font-weight: 600;
  color: var(--text-color);
}

.shipping-note {
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  color: var(--muted-text);
  font-style: italic;
}

.summary-divider {
  height: 2px;
  background: linear-gradient(to right, transparent, var(--card-border), transparent);
  margin: clamp(1rem, 2vw, 1.5rem) 0;
}

.summary-total {
  margin-bottom: 0;
  padding-top: clamp(0.75rem, 2vw, 1rem);
  border-top: 2px solid var(--card-border);
}

.summary-total span:first-child {
  font-size: clamp(1.0625rem, 2vw + 0.25rem, 1.25rem);
  font-weight: 700;
  color: var(--text-color);
}

.total-amount {
  font-size: clamp(1.375rem, 3vw + 0.5rem, 1.75rem);
  font-weight: 800;
  color: var(--price-regular);
  letter-spacing: -0.02em;
}

/* ========================================
   CUSTOMER FORM
   ======================================== */

.customer-form {
  padding: clamp(1rem, 2.5vw, 1.5rem);
  border-top: 2px solid var(--card-border);
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--primary-color) 3%, transparent) 0%,
    transparent 100%);
}

.form-title {
  font-size: clamp(1.0625rem, 2vw + 0.25rem, 1.25rem);
  font-weight: 700;
  color: var(--text-color);
  margin: 0 0 clamp(1rem, 2vw, 1.5rem) 0;
}

.form-group {
  margin-bottom: clamp(1rem, 2vw, 1.25rem);
}

.form-group:last-of-type {
  margin-bottom: 0;
}

.form-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: clamp(0.8125rem, 1.5vw, 0.9375rem);
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
  word-wrap: break-word;
}

.form-group label svg {
  width: 18px;
  height: 18px;
  color: var(--primary-color);
  flex-shrink: 0;
}

.form-group input {
  width: 100%;
  padding: clamp(0.625rem, 1.5vw, 0.875rem) clamp(0.75rem, 2vw, 1rem);
  font-size: 1rem;
  border: 2px solid var(--card-border);
  border-radius: var(--cart-radius-sm);
  background: var(--card-bg);
  color: var(--text-color);
  transition: all var(--transition-speed) var(--transition-ease);
  box-sizing: border-box;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input::placeholder {
  color: var(--muted-text);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  background: var(--bg-color);
}

/* ========================================
   ORDER BUTTON
   ======================================== */

.order-btn {
  width: 100%;
  margin-top: clamp(1rem, 2vw, 1.5rem);
  padding: clamp(0.875rem, 2vw, 1.125rem) clamp(1rem, 2.5vw, 1.5rem);
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: white;
  border: none;
  border-radius: var(--cart-radius-md);
  font-size: clamp(0.9375rem, 2vw + 0.25rem, 1.125rem);
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.5rem, 1.5vw, 0.75rem);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
  transition: all var(--transition-speed) var(--transition-ease);
}

.order-btn svg {
  width: clamp(18px, 4vw, 24px);
  height: clamp(18px, 4vw, 24px);
}

.order-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4);
  background: linear-gradient(135deg, #128c7e 0%, #25d366 100%);
}

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

.order-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ========================================
   STOCK WARNING
   ======================================== */

.stock-warning {
  font-size: clamp(0.625rem, 1.5vw, 0.75rem);
  padding: clamp(0.2rem, 0.5vw, 0.3rem) clamp(0.4rem, 1vw, 0.5rem);
  margin-top: 0.25rem;
  max-width: calc(100% - 3rem);
}

/* ========================================
   RESPONSIVE: SINGLE COLUMN LAYOUT
   ======================================== 
   Only breakpoint for major layout change
*/

@media (max-width: 999px) { /* Using var(--cart-breakpoint-tablet) value */
  .cart-content-wrapper {
    grid-template-columns: 1fr;
  }

  .order-summary {
    position: static;
    order: 2;
  }

  .cart-items-section {
    order: 1;
  }

  /* Prevent iOS zoom on input focus */
  .form-group input {
    font-size: 16px;
  }
}

/* ========================================
   CONTAINER QUERY: COMPACT 2-ROW LAYOUT
   ======================================== 
   Cart items adapt based on their container width, not viewport
   This makes the component truly modular - works in sidebars or narrow columns
*/

@container cart-list (max-width: 580px) { /* Using var(--cart-breakpoint-mobile) value */
  .cart-item {
    grid-template-columns: minmax(75px, 100px) 1fr;
    grid-template-rows: auto auto;
    align-items: start;
  }

  .cart-item-image {
    grid-row: 1 / 3;
    grid-column: 1;
    align-self: center;
  }

  .cart-item-info {
    grid-column: 2;
    grid-row: 1;
    padding-inline-end: 0;
    margin-inline-end: clamp(2.25rem, 5vw, 2.75rem);
  }

  .cart-item-name {
    -webkit-line-clamp: 3;
    line-clamp: 3;
    line-height: 1.3;
  }

  .cart-item-quantity {
    grid-column: 2;
    grid-row: 2;
    justify-self: start;
    align-self: start;
    margin-top: 0.25rem;
  }

  .cart-item-remove {
    position: absolute;
    top: clamp(0.625rem, 1.5vw, 0.875rem);
    inset-inline-end: clamp(0.625rem, 1.5vw, 0.875rem);
    grid-column: unset;
    align-items: flex-start;
    z-index: 3;
  }
}

/* ========================================
   RTL SUPPORT (Arabic)
   ======================================== */

.cart-item-name:lang(ar) {
  font-family: 'Cairo', 'Tajawal', sans-serif;
  font-weight: 600;
  line-height: 1.6;
}

/* Fix overlap with delete button on mobile - works in both LTR and RTL */
@media (max-width: 768px) {
  .cart-item-info {
    padding-inline-end: 3rem !important;
  }
}

/* ========================================
   ENHANCED FORM STYLES
   ======================================== */

/* Form sections with visual grouping */
.form-section {
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
  padding: clamp(1rem, 2vw, 1.25rem);
  background: var(--card-bg);
  border-radius: var(--cart-radius-sm);
  border: 1px solid color-mix(in srgb, var(--card-border) 20%, transparent);
}

.section-title {
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  font-weight: 700;
  color: var(--text-color);
  margin: 0 0 clamp(0.75rem, 1.5vw, 1rem) 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title::before {
  content: '';
  width: 4px;
  height: 1.2em;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
  border-radius: 2px;
}

/* Form row for side-by-side fields */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: clamp(0.75rem, 2vw, 1rem);
  margin-bottom: clamp(1rem, 2vw, 1.25rem);
}

.form-row .form-group {
  margin-bottom: 0;
}

/* Select dropdown styling */
.form-group select {
  width: 100%;
  padding: clamp(0.625rem, 1.5vw, 0.875rem) clamp(0.75rem, 2vw, 1rem);
  font-size: 1rem;
  border: 2px solid var(--card-border);
  border-radius: var(--cart-radius-sm);
  background: var(--card-bg);
  color: var(--text-color);
  transition: all var(--transition-speed) var(--transition-ease);
  box-sizing: border-box;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right clamp(0.75rem, 2vw, 1rem) center;
  background-size: 18px;
  padding-right: 2.5rem;
}

.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  background-color: var(--bg-color);
}

/* Textarea styling */
.form-group textarea {
  width: 100%;
  padding: clamp(0.625rem, 1.5vw, 0.875rem) clamp(0.75rem, 2vw, 1rem);
  font-size: 1rem;
  border: 2px solid var(--card-border);
  border-radius: var(--cart-radius-sm);
  background: var(--card-bg);
  color: var(--text-color);
  transition: all var(--transition-speed) var(--transition-ease);
  box-sizing: border-box;
  resize: vertical;
  font-family: inherit;
  line-height: 1.5;
  min-height: 80px;
}

/* Textarea footer with resize hint and counter */
.textarea-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.25rem;
  gap: 0.5rem;
}

.resize-hint {
  font-size: clamp(0.6875rem, 1.5vw, 0.75rem);
  color: var(--muted-text);
  font-style: italic;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.resize-hint::before {
  content: '';
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpolyline points='15 3 21 3 21 9'%3E%3C/polyline%3E%3Cpolyline points='9 21 3 21 3 15'%3E%3C/polyline%3E%3Cline x1='21' y1='3' x2='14' y2='10'%3E%3C/line%3E%3Cline x1='3' y1='21' x2='10' y2='14'%3E%3C/line%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.6;
}

.form-group textarea::placeholder {
  color: var(--muted-text);
}

.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  background: var(--bg-color);
}

/* Phone input with validation icon */
.phone-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.phone-input-wrapper input {
  padding-right: 3rem;
}

.validation-icon {
  position: absolute;
  right: clamp(0.75rem, 2vw, 1rem);
  width: 20px;
  height: 20px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-speed) var(--transition-ease);
}

.validation-icon.valid {
  opacity: 1;
}

.validation-icon.valid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310b981' stroke-width='2.5'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.validation-icon.invalid {
  opacity: 1;
}

.validation-icon.invalid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23dc2626' stroke-width='2.5'%3E%3Cline x1='18' y1='6' x2='6' y2='18'%3E%3C/line%3E%3Cline x1='6' y1='6' x2='18' y2='18'%3E%3C/line%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

/* Field hints and errors */
.field-hint {
  display: block;
  font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
  color: var(--secondary-text);
  margin-top: 0.375rem;
  font-style: italic;
}

.field-error {
  display: none;
  font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
  color: var(--price-discount);
  margin-top: 0.375rem;
  font-weight: 500;
}

.field-error::before {
  content: '⚠ ';
}

/* Character counter */
.char-count {
  font-size: clamp(0.6875rem, 1.5vw, 0.75rem);
  color: var(--secondary-text);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Optional label indicator */
.optional {
  font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
  font-weight: 400;
  color: var(--muted-text);
  font-style: italic;
}

/* Invalid input styles */
.form-group input:invalid:not(:placeholder-shown):not(:focus),
.form-group select:invalid:not(:focus),
.form-group textarea:invalid:not(:placeholder-shown):not(:focus) {
  border-color: color-mix(in srgb, var(--price-discount) 60%, transparent);
}

/* Valid input styles */
.form-group input:valid:not(:placeholder-shown),
.form-group select:valid:not([value=""]),
.form-group textarea:valid:not(:placeholder-shown) {
  border-color: color-mix(in srgb, #10b981 40%, var(--card-border));
}

/* Dark mode adjustments for select dropdown arrow */
@media (prefers-color-scheme: dark) {
  .form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  }
}

/* ========================================
   COUPON SECTION STYLES
   ======================================== */

.coupon-section {
  padding: clamp(0.75rem, 2vw, 1rem) 0;
  margin: clamp(0.5rem, 1.5vw, 0.75rem) 0;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.coupon-input-wrapper {
  display: flex;
  gap: clamp(0.5rem, 1.5vw, 0.625rem);
  align-items: stretch;
}

.coupon-input-wrapper input {
  flex: 1;
  padding: clamp(0.625rem, 1.5vw, 0.75rem) clamp(0.75rem, 2vw, 1rem);
  background: var(--bg-color);
  color: var(--text-color);
  border: 2px solid var(--card-border);
  border-radius: var(--cart-radius-sm);
  font-size: clamp(0.875rem, 1.8vw, 0.9375rem);
  font-weight: 500;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.coupon-input-wrapper input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-color) 10%, transparent);
}

.coupon-input-wrapper input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--card-hover);
}

.coupon-input-wrapper input::placeholder {
  text-transform: none;
  font-weight: 400;
  color: var(--muted-text);
}

.apply-coupon-btn {
  padding: clamp(0.625rem, 1.5vw, 0.75rem) clamp(1rem, 2.5vw, 1.5rem);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--cart-radius-sm);
  font-size: clamp(0.875rem, 1.8vw, 0.9375rem);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.apply-coupon-btn:hover:not(:disabled) {
  background: color-mix(in srgb, var(--primary-color) 85%, black);
  transform: translateY(-1px);
}

.apply-coupon-btn:active:not(:disabled) {
  transform: translateY(0);
}

.apply-coupon-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.coupon-message {
  margin-top: clamp(0.5rem, 1.5vw, 0.625rem);
  padding: clamp(0.5rem, 1.5vw, 0.625rem) clamp(0.75rem, 2vw, 1rem);
  border-radius: var(--cart-radius-xs);
  font-size: clamp(0.8125rem, 1.6vw, 0.875rem);
  font-weight: 500;
  line-height: 1.4;
  display: none;
}

.coupon-message.success {
  background: color-mix(in srgb, #10b981 10%, transparent);
  color: #059669;
  border: 1px solid color-mix(in srgb, #10b981 20%, transparent);
}

.coupon-message.error {
  background: color-mix(in srgb, #ef4444 10%, transparent);
  color: #dc2626;
  border: 1px solid color-mix(in srgb, #ef4444 20%, transparent);
}

.coupon-message.info {
  background: color-mix(in srgb, var(--primary-color) 10%, transparent);
  color: var(--primary-color);
  border: 1px solid color-mix(in srgb, var(--primary-color) 20%, transparent);
}

/* Discount row in order summary */
.discount-row {
  color: var(--price-discount);
  font-weight: 600;
}

.discount-row span:first-child {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: clamp(0.875rem, 1.8vw, 0.9375rem);
}

.discount-icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.discount-amount {
  color: var(--price-discount) !important;
  font-weight: 700;
}

.remove-coupon-btn {
  background: none;
  border: none;
  padding: 0.25rem;
  margin-left: 0.375rem;
  cursor: pointer;
  color: var(--muted-text);
  transition: color 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
}

.remove-coupon-btn:hover {
  color: var(--price-discount);
  background: color-mix(in srgb, var(--price-discount) 10%, transparent);
}

.remove-coupon-btn svg {
  width: 0.875rem;
  height: 0.875rem;
}

/* Mobile optimizations */
@media (max-width: 999px) {
  .form-row {
    grid-template-columns: 1fr;
  }
  
  /* Prevent iOS zoom on input focus */
  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 16px;
  }
  
  .form-section {
    padding: clamp(0.75rem, 2vw, 1rem);
  }
  
  .coupon-input-wrapper input {
    font-size: 16px; /* Prevent iOS zoom */
  }
  
  .apply-coupon-btn {
    padding: clamp(0.625rem, 1.5vw, 0.75rem) clamp(0.875rem, 2vw, 1rem);
  }
}