/* =====================================================
   MODERN CART DESIGN - CSS VARIABLES & THEME SYSTEM
   ===================================================== */

:root {
  /* === COLORS === */
  --cart-primary: #2563eb;
  --cart-primary-hover: #1d4ed8;
  --cart-primary-light: #eff6ff;
  
  --cart-success: #10b981;
  --cart-success-hover: #059669;
  --cart-success-light: #ecfdf5;
  
  --cart-danger: #ef4444;
  --cart-danger-hover: #dc2626;
  --cart-danger-light: #fef2f2;
  
  --cart-warning: #f59e0b;
  --cart-warning-hover: #d97706;
  --cart-warning-light: #fffbeb;
  
  --cart-neutral-50: #f9fafb;
  --cart-neutral-100: #f3f4f6;
  --cart-neutral-200: #e5e7eb;
  --cart-neutral-300: #d1d5db;
  --cart-neutral-400: #9ca3af;
  --cart-neutral-500: #6b7280;
  --cart-neutral-600: #4b5563;
  --cart-neutral-700: #374151;
  --cart-neutral-800: #1f2937;
  --cart-neutral-900: #111827;
  
  /* === TYPOGRAPHY === */
  --cart-font-xs: 0.75rem;     /* 12px */
  --cart-font-sm: 0.875rem;    /* 14px */
  --cart-font-base: 1rem;      /* 16px */
  --cart-font-lg: 1.125rem;    /* 18px */
  --cart-font-xl: 1.25rem;     /* 20px */
  --cart-font-2xl: 1.5rem;     /* 24px */
  
  --cart-font-weight-normal: 400;
  --cart-font-weight-medium: 500;
  --cart-font-weight-semibold: 600;
  --cart-font-weight-bold: 700;
  
  --cart-line-height-tight: 1.25;
  --cart-line-height-normal: 1.5;
  --cart-line-height-relaxed: 1.75;
  
  /* === SPACING === */
  --cart-space-1: 0.25rem;   /* 4px */
  --cart-space-2: 0.5rem;    /* 8px */
  --cart-space-3: 0.75rem;   /* 12px */
  --cart-space-4: 1rem;      /* 16px */
  --cart-space-5: 1.25rem;   /* 20px */
  --cart-space-6: 1.5rem;    /* 24px */
  --cart-space-8: 2rem;      /* 32px */
  --cart-space-10: 2.5rem;   /* 40px */
  --cart-space-12: 3rem;     /* 48px */
  
  /* === BORDERS === */
  --cart-border-radius-sm: 0.375rem;   /* 6px */
  --cart-border-radius: 0.5rem;        /* 8px */
  --cart-border-radius-md: 0.75rem;    /* 12px */
  --cart-border-radius-lg: 1rem;       /* 16px */
  --cart-border-radius-xl: 1.5rem;     /* 24px */
  
  --cart-border-width: 1px;
  --cart-border-color: var(--cart-neutral-200);
  
  /* === SHADOWS === */
  --cart-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --cart-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --cart-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --cart-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --cart-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* === TRANSITIONS === */
  --cart-transition-fast: 150ms ease-in-out;
  --cart-transition-normal: 300ms ease-in-out;
  --cart-transition-slow: 500ms ease-in-out;
  
  /* === TOUCH TARGETS === */
  --cart-touch-target: 44px;
  --cart-touch-target-sm: 36px;
  --cart-touch-target-lg: 52px;
  
  /* === Z-INDEX === */
  --cart-z-dropdown: 1000;
  --cart-z-sticky: 1020;
  --cart-z-fixed: 1030;
  --cart-z-modal: 1050;
  --cart-z-popover: 1060;
  --cart-z-tooltip: 1070;
}

/* =====================================================
   CART OFFCANVAS CONTAINER
   ===================================================== */

#cartOffcanvas {
  --bs-offcanvas-width: 420px;
}

#cartOffcanvas .offcanvas-header {
  padding: var(--cart-space-6);
  border-bottom: var(--cart-border-width) solid var(--cart-border-color);
  background: var(--cart-neutral-50);
}

#cartOffcanvas .offcanvas-title {
  font-size: var(--cart-font-xl);
  font-weight: var(--cart-font-weight-bold);
  color: var(--cart-neutral-800);
  margin: 0;
}

#cartOffcanvas .btn-close {
  width: var(--cart-touch-target-sm);
  height: var(--cart-touch-target-sm);
  border-radius: var(--cart-border-radius);
  transition: all var(--cart-transition-fast);
}

#cartOffcanvas .btn-close:hover {
  background-color: var(--cart-danger-light);
  transform: scale(1.1);
}

#cartOffcanvas .offcanvas-body {
  padding: var(--cart-space-4);
  background: #ffffff;
}

/* =====================================================
   MODERN PRODUCT CARDS - COMPACT LAYOUT
   ===================================================== */

.modern-cart-item {
  background: #ffffff;
  border: var(--cart-border-width) solid var(--cart-border-color);
  border-radius: var(--cart-border-radius);
  box-shadow: var(--cart-shadow-sm);
  margin-bottom: var(--cart-space-3);
  padding: var(--cart-space-3);
  transition: all var(--cart-transition-normal);
  position: relative;
  overflow: hidden;
}

.modern-cart-item:hover {
  box-shadow: var(--cart-shadow-md);
  border-color: var(--cart-primary);
  transform: translateY(-1px);
}

.modern-cart-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--cart-primary);
  transform: scaleY(0);
  transition: transform var(--cart-transition-normal);
}

.modern-cart-item:hover::before {
  transform: scaleY(1);
}

/* === COMPACT LAYOUT STRUCTURE === */
.cart-item-layout {
  display: flex;
  gap: var(--cart-space-3);
  align-items: flex-start;
}

.cart-item-image {
  width: 60px;
  height: 60px;
  border-radius: var(--cart-border-radius-sm);
  overflow: hidden;
  background: var(--cart-neutral-100);
  border: var(--cart-border-width) solid var(--cart-border-color);
  flex-shrink: 0;
  position: relative;
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--cart-transition-normal);
}

.cart-item-image:hover img {
  transform: scale(1.05);
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--cart-space-2);
  gap: var(--cart-space-2);
}

.cart-item-title {
  font-size: var(--cart-font-sm);
  font-weight: var(--cart-font-weight-semibold);
  color: var(--cart-neutral-800);
  line-height: var(--cart-line-height-tight);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* === COMPACT REMOVE BUTTON === */
.cart-remove-btn {
  background: var(--cart-danger-light);
  color: var(--cart-danger);
  border: none;
  border-radius: var(--cart-border-radius-sm);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: all var(--cart-transition-fast);
  cursor: pointer;
  flex-shrink: 0;
}

.cart-remove-btn:hover {
  background: var(--cart-danger);
  color: white;
  transform: scale(1.05);
}

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

/* =====================================================
   CART ITEM DETAILS - COMPACT
   ===================================================== */

.cart-item-details {
  display: flex;
  flex-direction: column;
  gap: var(--cart-space-2);
  font-size: var(--cart-font-xs);
}

/* Price ve Quantity yan yana */
.cart-price-quantity-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--cart-space-2);
}

.cart-price-info,
.cart-quantity-section,
.cart-tax-info,
.cart-total-section {
  display: flex;
  flex-direction: column;
  gap: var(--cart-space-1);
}

.cart-price-info {
  flex: 1;
  min-width: 0;
}

.cart-quantity-section {
  flex-shrink: 0;
  width: 120px;
}

.price-label,
.quantity-label,
.tax-label,
.total-label {
  font-size: var(--cart-font-xs);
  font-weight: var(--cart-font-weight-medium);
  color: var(--cart-neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.price-label {
  text-align: left;
}

.quantity-label {
  text-align: center;
}

.price-value,
.tax-value {
  font-size: var(--cart-font-sm);
  font-weight: var(--cart-font-weight-semibold);
  color: var(--cart-neutral-700);
}

.total-value {
  font-size: var(--cart-font-base);
  font-weight: var(--cart-font-weight-bold);
  color: var(--cart-success);
}

.cart-tax-info {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: var(--cart-space-2);
}

.cart-total-section {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--cart-space-2);
  border-top: 1px solid var(--cart-neutral-200);
  margin-top: var(--cart-space-1);
}

/* =====================================================
   COMPACT QUANTITY STEPPER
   ===================================================== */

.modern-quantity-stepper {
  display: flex;
  align-items: center;
  background: var(--cart-neutral-50);
  border: var(--cart-border-width) solid var(--cart-border-color);
  border-radius: var(--cart-border-radius-sm);
  overflow: hidden;
  width: 120px;
  margin-top: var(--cart-space-1);
}

.quantity-btn {
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--cart-neutral-600);
  font-size: 0.75rem;
  font-weight: var(--cart-font-weight-bold);
  cursor: pointer;
  transition: all var(--cart-transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  flex-shrink: 0;
}

.quantity-btn:hover {
  background: var(--cart-primary);
  color: #ffffff;
}

.quantity-btn:active {
  transform: scale(0.95);
}

.quantity-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: transparent;
  color: var(--cart-neutral-400);
}

.quantity-input {
  flex: 1;
  height: 30px;
  border: none;
  background: transparent;
  text-align: center;
  font-size: var(--cart-font-sm);
  font-weight: var(--cart-font-weight-semibold);
  color: var(--cart-neutral-800);
  outline: none;
  -moz-appearance: textfield;
  min-width: 36px;
}

.quantity-input::-webkit-outer-spin-button,
.quantity-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* =====================================================
   MODERN BUTTONS
   ===================================================== */

.modern-cart-btn {
  min-height: var(--cart-touch-target);
  padding: var(--cart-space-3) var(--cart-space-4);
  border-radius: var(--cart-border-radius);
  border: none;
  font-size: var(--cart-font-base);
  font-weight: var(--cart-font-weight-medium);
  cursor: pointer;
  transition: all var(--cart-transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--cart-space-2);
  text-decoration: none;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.modern-cart-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform var(--cart-transition-normal);
}

.modern-cart-btn:hover::before {
  transform: translateX(100%);
}

.modern-cart-btn:active {
  transform: scale(0.98);
}

/* Button Variants */
.modern-cart-btn--primary {
  background: var(--cart-primary);
  color: #ffffff;
}

.modern-cart-btn--primary:hover {
  background: var(--cart-primary-hover);
  color: #ffffff;
  box-shadow: var(--cart-shadow-md);
}

.modern-cart-btn--success {
  background: var(--cart-success);
  color: #ffffff;
}

.modern-cart-btn--success:hover {
  background: var(--cart-success-hover);
  color: #ffffff;
  box-shadow: var(--cart-shadow-md);
}

.modern-cart-btn--danger {
  background: var(--cart-danger);
  color: #ffffff;
}

.modern-cart-btn--danger:hover {
  background: var(--cart-danger-hover);
  color: #ffffff;
  box-shadow: var(--cart-shadow-md);
}

.modern-cart-btn--outline {
  background: transparent;
  color: var(--cart-primary);
  border: var(--cart-border-width) solid var(--cart-primary);
}

.modern-cart-btn--outline:hover {
  background: var(--cart-primary);
  color: #ffffff;
}

/* Icon Buttons */
.modern-cart-btn--icon {
  width: var(--cart-touch-target);
  height: var(--cart-touch-target);
  padding: 0;
  border-radius: 50%;
}

.modern-cart-btn--icon-sm {
  width: var(--cart-touch-target-sm);
  height: var(--cart-touch-target-sm);
}

.remove-item-btn {
  position: absolute;
  top: var(--cart-space-2);
  right: var(--cart-space-2);
  width: var(--cart-touch-target-sm);
  height: var(--cart-touch-target-sm);
  background: var(--cart-danger);
  color: #ffffff;
  border: none;
  border-radius: 50%;
  font-size: var(--cart-font-sm);
  cursor: pointer;
  transition: all var(--cart-transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
}

.modern-cart-item:hover .remove-item-btn {
  opacity: 1;
  transform: scale(1);
}

.remove-item-btn:hover {
  background: var(--cart-danger-hover);
  transform: scale(1.1);
  box-shadow: var(--cart-shadow-md);
}

/* =====================================================
   CART SUMMARY
   ===================================================== */

.cart-summary {
  background: var(--cart-neutral-50);
  border: var(--cart-border-width) solid var(--cart-border-color);
  border-radius: var(--cart-border-radius-md);
  padding: var(--cart-space-6);
  margin-top: var(--cart-space-6);
  position: sticky;
  bottom: 0;
  z-index: var(--cart-z-sticky);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--cart-space-4);
  font-size: var(--cart-font-base);
}

.cart-summary-row:last-child {
  margin-bottom: 0;
  padding-top: var(--cart-space-4);
  border-top: var(--cart-border-width) solid var(--cart-border-color);
  font-size: var(--cart-font-xl);
  font-weight: var(--cart-font-weight-bold);
}

.cart-summary-label {
  color: var(--cart-neutral-600);
  font-weight: var(--cart-font-weight-medium);
}

.cart-summary-value {
  color: var(--cart-neutral-800);
  font-weight: var(--cart-font-weight-semibold);
}

/* .cart-total-value {
  color: var(--cart-success);
  font-weight: var(--cart-font-weight-bold);
  font-size: var(--cart-font-2xl);
} */

/* =====================================================
   FINANCIAL INFO CARDS
   ===================================================== */

.financial-info-modern {
  background: linear-gradient(135deg, var(--cart-primary-light) 0%, var(--cart-success-light) 100%);
  border: var(--cart-border-width) solid var(--cart-border-color);
  border-radius: var(--cart-border-radius-lg);
  padding: var(--cart-space-5);
  margin-bottom: var(--cart-space-6);
}

.financial-card {
  background: #ffffff;
  border: var(--cart-border-width) solid var(--cart-border-color);
  border-radius: var(--cart-border-radius);
  padding: var(--cart-space-4);
  margin-bottom: var(--cart-space-3);
  box-shadow: var(--cart-shadow-sm);
  transition: all var(--cart-transition-normal);
}

.financial-card:hover {
  box-shadow: var(--cart-shadow-md);
  transform: translateY(-1px);
}

.financial-card-header {
  display: flex;
  align-items: center;
  gap: var(--cart-space-2);
  margin-bottom: var(--cart-space-2);
}

.financial-card-icon {
  width: 24px;
  height: 24px;
  border-radius: var(--cart-border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--cart-font-sm);
}

.financial-card-icon--success {
  background: var(--cart-success-light);
  color: var(--cart-success);
}

.financial-card-icon--warning {
  background: var(--cart-warning-light);
  color: var(--cart-warning);
}

.financial-card-icon--danger {
  background: var(--cart-danger-light);
  color: var(--cart-danger);
}

.financial-card-title {
  font-size: var(--cart-font-sm);
  font-weight: var(--cart-font-weight-medium);
  color: var(--cart-neutral-600);
  margin: 0;
}

.financial-card-value {
  font-size: var(--cart-font-lg);
  font-weight: var(--cart-font-weight-bold);
  margin: 0;
}

.financial-card-value--success {
  color: var(--cart-success);
}

.financial-card-value--warning {
  color: var(--cart-warning);
}

.financial-card-value--danger {
  color: var(--cart-danger);
}

/* === MODERN FINANCIAL INFO CARDS === */
.modern-financial-info {
  margin-bottom: 1.5rem;
}

.financial-cards-grid {
  display: flex;
  /* flex-direction: column; */
  /* gap: 0.75rem; */
  /* margin-bottom: 1rem; */
}

.modern-financial-card {
  background: linear-gradient(135deg, #ffffff 0%, var(--cart-neutral-50) 100%);
  border: var(--cart-border-width) solid var(--cart-border-color);
  border-radius: var(--cart-border-radius);
  padding: 1rem;
  transition: all var(--cart-transition-normal);
  box-shadow: var(--cart-shadow-sm);
  position: relative;
  overflow: hidden;
  width: 100%;
}

.modern-financial-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--cart-primary);
  opacity: 0;
  transition: opacity var(--cart-transition-normal);
}

.modern-financial-card:hover::before {
  opacity: 1;
}

.modern-financial-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--cart-shadow-md);
  border-color: var(--cart-primary);
}

.financial-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.financial-card-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--cart-primary);
  flex-shrink: 0;
}

.financial-card-label {
  font-size: 0.875rem;
  font-weight: var(--cart-font-weight-medium);
  color: var(--cart-neutral-600);
  line-height: 1.2;
}

.financial-card-value {
  font-size: 1.125rem;
  font-weight: var(--cart-font-weight-bold);
  color: var(--cart-neutral-800);
  line-height: 1.2;
}

.financial-card-value.positive {
  color: var(--cart-success);
}

.financial-card-value.negative {
  color: var(--cart-danger);
}

/* Card-specific styling */
.balance-card::before {
  background: var(--cart-success);
}

.balance-card .financial-card-icon {
  color: var(--cart-success);
}

.credit-card::before {
  background: var(--cart-primary);
}

.credit-card .financial-card-icon {
  color: var(--cart-primary);
}

/* Mobile responsiveness for financial cards */
@media (max-width: 576px) {
  .financial-cards-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .modern-financial-card {
    padding: 0.875rem;
  }
  
  .financial-card-value {
    font-size: 1rem;
  }
}

/* =====================================================
   ALERTS & NOTIFICATIONS
   ===================================================== */

.modern-alert {
  border: var(--cart-border-width) solid;
  border-radius: var(--cart-border-radius);
  padding: var(--cart-space-4);
  margin-bottom: var(--cart-space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--cart-space-3);
}

.modern-alert-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--cart-font-xs);
  font-weight: var(--cart-font-weight-bold);
  margin-top: 2px;
}

.modern-alert-content {
  flex: 1;
  min-width: 0;
}

.modern-alert-title {
  font-size: var(--cart-font-base);
  font-weight: var(--cart-font-weight-semibold);
  margin: 0 0 var(--cart-space-1) 0;
}

.modern-alert-message {
  font-size: var(--cart-font-sm);
  line-height: var(--cart-line-height-normal);
  margin: 0;
}

.modern-alert--success {
  background: var(--cart-success-light);
  border-color: var(--cart-success);
  color: var(--cart-success);
}

.modern-alert--warning {
  background: var(--cart-warning-light);
  border-color: var(--cart-warning);
  color: var(--cart-warning);
}

.modern-alert--danger {
  background: var(--cart-danger-light);
  border-color: var(--cart-danger);
  color: var(--cart-danger);
}

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

.empty-cart-state {
  text-align: center;
  padding: var(--cart-space-12) var(--cart-space-4);
  color: var(--cart-neutral-500);
}

.empty-cart-icon {
  width: 120px;
  height: 120px;
  background: var(--cart-neutral-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--cart-space-6) auto;
  font-size: 48px;
  color: var(--cart-neutral-400);
}

.empty-cart-title {
  font-size: var(--cart-font-xl);
  font-weight: var(--cart-font-weight-semibold);
  color: var(--cart-neutral-700);
  margin-bottom: var(--cart-space-2);
}

.empty-cart-message {
  font-size: var(--cart-font-base);
  color: var(--cart-neutral-500);
  margin-bottom: var(--cart-space-6);
}

/* =====================================================
   ORDER NOTE
   ===================================================== */

.order-note-section {
  margin-bottom: var(--cart-space-6);
}

.order-note-label {
  font-size: var(--cart-font-base);
  font-weight: var(--cart-font-weight-medium);
  color: var(--cart-neutral-700);
  margin-bottom: var(--cart-space-2);
  display: block;
}

.order-note-input {
  width: 100%;
  min-height: 80px;
  padding: var(--cart-space-3);
  border: var(--cart-border-width) solid var(--cart-border-color);
  border-radius: var(--cart-border-radius);
  font-size: var(--cart-font-base);
  line-height: var(--cart-line-height-normal);
  resize: vertical;
  transition: all var(--cart-transition-fast);
}

.order-note-input:focus {
  outline: none;
  border-color: var(--cart-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.order-note-input::placeholder {
  color: var(--cart-neutral-400);
}

/* =====================================================
   LOADING STATES
   ===================================================== */

.cart-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--cart-space-8);
}

.cart-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--cart-neutral-200);
  border-top: 3px solid var(--cart-primary);
  border-radius: 50%;
  animation: cart-spin 1s linear infinite;
}

@keyframes cart-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.cart-skeleton {
  background: linear-gradient(90deg, var(--cart-neutral-100) 25%, var(--cart-neutral-50) 50%, var(--cart-neutral-100) 75%);
  background-size: 200% 100%;
  animation: cart-skeleton 1.5s infinite;
}

@keyframes cart-skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =====================================================
   ANIMATIONS
   ===================================================== */

@keyframes cart-item-enter {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes cart-item-exit {
  0% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateX(-100%) scale(0.8);
  }
}

.cart-item-enter {
  animation: cart-item-enter var(--cart-transition-normal) ease-out;
}

.cart-item-exit {
  animation: cart-item-exit var(--cart-transition-normal) ease-in;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

/* Large tablets and small desktops */
@media (max-width: 768px) {
  #cartOffcanvas {
    --bs-offcanvas-width: 380px;
  }
  
  .modern-cart-item {
    padding: var(--cart-space-4);
  }
  
  .cart-item-content {
    flex-direction: column;
    gap: var(--cart-space-3);
  }
  
  .cart-item-image {
    width: 100%;
    max-width: 200px;
    margin: 0 auto;
  }
  
  .cart-item-image img {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
  }
}

/* Mobile devices */
@media (max-width: 576px) {
  #cartOffcanvas {
    --bs-offcanvas-width: 100vw;
  }
  
  #cartOffcanvas .offcanvas-header {
    padding: var(--cart-space-4);
  }
  
  #cartOffcanvas .offcanvas-body {
    padding: var(--cart-space-3);
  }
  
  .modern-cart-container {
    gap: var(--cart-space-2);
  }
  
  .modern-cart-item {
    padding: var(--cart-space-2);
    margin-bottom: var(--cart-space-2);
  }
  
  .cart-item-layout {
    gap: var(--cart-space-2);
  }
  
  .cart-item-image {
    width: 50px;
    height: 50px;
  }
  
  .cart-item-header {
    margin-bottom: var(--cart-space-2);
  }
  
  .cart-item-title {
    font-size: var(--cart-font-xs);
    line-height: var(--cart-line-height-tight);
  }
  
  .cart-remove-btn {
    width: 24px;
    height: 24px;
    font-size: 0.625rem;
  }
  
  .cart-price-quantity-row {
    flex-direction: row;
    gap: var(--cart-space-1);
    align-items: flex-start;
  }
  
  .cart-quantity-section {
    min-width: 120px;
  }
  
  .modern-quantity-stepper {
    min-width: 120px;
  }
  
  .quantity-btn {
    width: 26px;
    height: 26px;
    font-size: 0.6875rem;
  }
  
  .quantity-input {
    height: 26px;
    font-size: var(--cart-font-xs);
  }
  
  .cart-item-details {
    gap: var(--cart-space-1);
  }
  
  .cart-summary {
    padding: var(--cart-space-3);
    margin-top: var(--cart-space-3);
  }
  
  .financial-cards-grid {
    grid-template-columns: 1fr;
    gap: var(--cart-space-2);
  }
  
  .modern-financial-card {
    padding: var(--cart-space-2);
  }
  
  .financial-card-value {
    font-size: var(--cart-font-sm);
  }
}

/* Small mobile devices */
@media (max-width: 380px) {
  #cartOffcanvas .offcanvas-header,
  #cartOffcanvas .offcanvas-body {
    padding: var(--cart-space-3);
  }
  
  .modern-cart-item {
    padding: var(--cart-space-2);
  }
  
  .cart-item-title {
    font-size: var(--cart-font-sm);
  }
  
  .cart-remove-btn {
    width: 32px;
    height: 32px;
    font-size: 0.625rem;
  }
  
  .cart-item-image {
    max-width: 100px;
  }
  
  .price-value,
  .tax-value,
  .total-value {
    font-size: var(--cart-font-xs);
  }
  
  .modern-quantity-stepper {
    transform: scale(0.8);
  }
  
  .quantity-btn {
    width: 32px;
    height: 32px;
    font-size: var(--cart-font-sm);
  }
  
  .quantity-input {
    width: 40px;
    height: 32px;
    font-size: var(--cart-font-xs);
  }
  
  .cart-summary {
    padding: var(--cart-space-3);
  }
  
  .modern-financial-card {
    padding: var(--cart-space-2);
  }
  
  .financial-card-label {
    font-size: var(--cart-font-xs);
  }
  
  .financial-card-value {
    font-size: var(--cart-font-sm);
  }
}

/* Extra small mobile devices */
@media (max-width: 320px) {
  .cart-item-content {
    gap: var(--cart-space-2);
  }
  
  .cart-item-image {
    max-width: 80px;
  }
  
  .cart-item-details {
    gap: var(--cart-space-1);
  }
  
  .modern-quantity-stepper {
    transform: scale(0.75);
  }
  
  .quantity-btn {
    width: 28px;
    height: 28px;
  }
  
  .quantity-input {
    width: 36px;
    height: 28px;
  }
}

/* Landscape orientation on mobile */
@media (max-height: 500px) and (orientation: landscape) {
  #cartOffcanvas {
    --bs-offcanvas-width: 50vw;
  }
  
  .cart-item-content {
    flex-direction: row;
  }
  
  .cart-item-image {
    max-width: 80px;
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .cart-item-image img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Touch devices */
@media (pointer: coarse) {
  .quantity-btn,
  .cart-remove-btn {
    min-width: var(--cart-touch-target);
    min-height: var(--cart-touch-target);
  }
  
  .modern-cart-btn {
    min-height: var(--cart-touch-target);
    padding: var(--cart-space-3) var(--cart-space-4);
  }
}

/* =====================================================
   ACCESSIBILITY
   ===================================================== */

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .modern-cart-item:hover::before {
    transform: none;
  }
  
  .modern-cart-item:hover {
    transform: none;
  }
  
  .modern-financial-card:hover {
    transform: none;
  }
  
  .cart-remove-btn:hover,
  .quantity-btn:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .modern-cart-item {
    border-width: 2px;
    border-color: var(--cart-neutral-800);
  }
  
  .modern-financial-card {
    border-width: 2px;
    border-color: var(--cart-neutral-800);
  }
  
  .quantity-btn {
    border: 2px solid var(--cart-neutral-800);
  }
  
  .cart-remove-btn {
    border: 2px solid var(--cart-danger);
  }
}

/* Focus indicators */
.modern-cart-item:focus-within {
  outline: 3px solid var(--cart-primary);
  outline-offset: 2px;
  border-color: var(--cart-primary);
}

.modern-cart-btn:focus-visible {
  outline: 3px solid var(--cart-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.quantity-input:focus {
  outline: 3px solid var(--cart-primary);
  outline-offset: 1px;
  border-color: var(--cart-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.quantity-btn:focus-visible {
  outline: 3px solid var(--cart-primary);
  outline-offset: 2px;
  background: var(--cart-primary);
  color: white;
}

.cart-remove-btn:focus-visible {
  outline: 3px solid var(--cart-danger);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.modern-financial-card:focus-within {
  outline: 2px solid var(--cart-primary);
  outline-offset: 2px;
}

/* Screen reader only content */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sr-only-focusable:active,
.sr-only-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  padding: var(--cart-space-2);
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--cart-primary);
  color: white;
  border-radius: var(--cart-border-radius);
}

/* Skip links */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--cart-primary);
  color: white;
  padding: var(--cart-space-2) var(--cart-space-3);
  text-decoration: none;
  border-radius: var(--cart-border-radius);
  z-index: var(--cart-z-tooltip);
  font-weight: var(--cart-font-weight-semibold);
  transition: top var(--cart-transition-fast);
}

.skip-link:focus {
  top: 6px;
  outline: 3px solid white;
  outline-offset: 2px;
}

/* Loading states accessibility */
.cart-loading[aria-live="polite"] {
  color: var(--cart-neutral-700);
  font-weight: var(--cart-font-weight-medium);
}

/* Form labels and descriptions */
.cart-form-label {
  font-weight: var(--cart-font-weight-medium);
  color: var(--cart-neutral-700);
  margin-bottom: var(--cart-space-1);
  display: block;
}

.cart-form-description {
  font-size: var(--cart-font-sm);
  color: var(--cart-neutral-500);
  margin-top: var(--cart-space-1);
}

.cart-form-error {
  font-size: var(--cart-font-sm);
  color: var(--cart-danger);
  margin-top: var(--cart-space-1);
  display: flex;
  align-items: center;
  gap: var(--cart-space-1);
}

.cart-form-error::before {
  content: '⚠';
  font-size: var(--cart-font-base);
}

/* Status announcements */
.cart-status-announcement {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Interactive element states */
.quantity-btn:disabled,
.modern-cart-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--cart-neutral-300);
  color: var(--cart-neutral-500);
  border-color: var(--cart-neutral-300);
}

.quantity-btn:disabled:focus,
.modern-cart-btn:disabled:focus {
  outline: 2px solid var(--cart-neutral-400);
  outline-offset: 2px;
}

/* Color blind friendly indicators */
.cart-success-indicator::before {
  content: '✓';
  margin-right: var(--cart-space-1);
  font-weight: bold;
}

.cart-error-indicator::before {
  content: '✗';
  margin-right: var(--cart-space-1);
  font-weight: bold;
}

.cart-warning-indicator::before {
  content: '⚠';
  margin-right: var(--cart-space-1);
  font-weight: bold;
}

/* Keyboard navigation enhancements */
.modern-cart-item {
  position: relative;
}

.modern-cart-item:focus-within .cart-remove-btn {
  opacity: 1;
  transform: scale(1);
}

/* Touch and pointer accessibility */
@media (pointer: coarse) {
  .quantity-btn,
  .cart-remove-btn,
  .modern-cart-btn {
    min-width: var(--cart-touch-target);
    min-height: var(--cart-touch-target);
  }
}

/* Text spacing preferences */
@supports (line-height-step: 1px) {
  .cart-item-title,
  .price-label,
  .quantity-label,
  .tax-label,
  .total-label {
    line-height-step: 1px;
  }
}

/* Windows High Contrast Mode */
@media screen and (-ms-high-contrast: active) {
  .modern-cart-item {
    border: 2px solid;
  }
  
  .quantity-btn {
    border: 1px solid;
  }
  
  .cart-remove-btn {
    border: 1px solid;
    background: ButtonText;
    color: ButtonFace;
  }
}

/* =====================================================
   SELECT2 INTEGRATION
   ===================================================== */

#cartOffcanvas .select2-container {
  width: 100% !important;
}

#cartOffcanvas .select2-selection {
  min-height: var(--cart-touch-target);
  border: var(--cart-border-width) solid var(--cart-border-color) !important;
  border-radius: var(--cart-border-radius) !important;
  display: flex;
  align-items: center;
  transition: all var(--cart-transition-fast);
}

#cartOffcanvas .select2-selection:focus-within {
  border-color: var(--cart-primary) !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

#cartOffcanvas .select2-container--bootstrap-5 .select2-dropdown {
  border-color: var(--cart-border-color);
  border-radius: var(--cart-border-radius);
  box-shadow: var(--cart-shadow-lg);
}

#cartOffcanvas .select2-results__option {
  padding: var(--cart-space-3);
  font-size: var(--cart-font-base);
}

#cartOffcanvas .select2-results__option--highlighted {
  background-color: var(--cart-primary-light) !important;
  color: var(--cart-primary) !important;
}