/* ===========================================
   Shopping Common Styles
   Luxury Modern Design System
   =========================================== */

/* ----- 1. CSS Variables ----- */
:root {
  /* Colors - Primary */
  --shopping-gold-primary: #d4af37;
  --shopping-gold-dark: #c9a227;
  --shopping-gold-light: rgba(212, 175, 55, 0.1);
  --shopping-gold-lighter: rgba(212, 175, 55, 0.05);

  /* Colors - Text */
  --shopping-text-primary: #333333;
  --shopping-text-secondary: #666666;
  --shopping-text-muted: #999999;

  /* Colors - Background */
  --shopping-bg-white: #ffffff;
  --shopping-bg-light: #f5f5f5;
  --shopping-bg-input: #fafafa;

  /* Colors - Border */
  --shopping-border: #e5e5e5;
  --shopping-border-light: #f0f0f0;

  /* Colors - Status */
  --shopping-error: #ef4444;
  --shopping-error-light: #fef2f2;
  --shopping-warning: #f59e0b;
  --shopping-warning-light: #fef3c7;
  --shopping-success: #22c55e;
  --shopping-success-light: #f0fdf4;
  --shopping-info: #3b82f6;
  --shopping-info-light: #eff6ff;

  /* Shadows */
  --shopping-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shopping-shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shopping-shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shopping-shadow-gold: 0 4px 16px rgba(212, 175, 55, 0.3);

  /* Spacing */
  --shopping-space-xs: 4px;
  --shopping-space-sm: 8px;
  --shopping-space-md: 16px;
  --shopping-space-lg: 24px;
  --shopping-space-xl: 32px;

  /* Border Radius */
  --shopping-radius-sm: 6px;
  --shopping-radius-md: 8px;
  --shopping-radius-lg: 12px;
  --shopping-radius-xl: 16px;

  /* Transitions */
  --shopping-transition: all 0.3s ease;
  --shopping-transition-fast: all 0.2s ease;
}

/* ----- 2. Base Styles ----- */
.shopping-page {
  font-family: var(--font-sans);
  color: var(--shopping-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.shopping-container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--shopping-space-lg);
}

/* ----- 3. Typography ----- */
.shopping-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--shopping-text-primary);
  text-align: center;
  margin: 0 0 var(--shopping-space-lg) 0;
}

.shopping-subtitle {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--shopping-text-primary);
  margin: 0 0 var(--shopping-space-md) 0;
  display: flex;
  align-items: center;
  gap: var(--shopping-space-sm);
}

.shopping-subtitle i {
  color: var(--shopping-gold-primary);
  font-size: 20px;
}

.shopping-text {
  font-size: 14px;
  color: var(--shopping-text-secondary);
  margin: 0;
}

.shopping-text-sm {
  font-size: 12px;
  color: var(--shopping-text-muted);
}

.shopping-text-lg {
  font-size: 16px;
}

/* ----- 4. Step Indicator ----- */
.shopping-steps {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--shopping-space-xl);
  padding: 0 var(--shopping-space-md);
}

.shopping-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.shopping-step-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  background: var(--shopping-bg-light);
  color: var(--shopping-text-muted);
  border: 2px solid var(--shopping-border);
  transition: var(--shopping-transition);
  position: relative;
  z-index: 1;
}

.shopping-step-circle i {
  font-size: 18px;
}

.shopping-step.active .shopping-step-circle {
  background: linear-gradient(135deg, var(--shopping-gold-primary), var(--shopping-gold-dark));
  color: white;
  border-color: var(--shopping-gold-primary);
  box-shadow: var(--shopping-shadow-gold);
}

.shopping-step.completed .shopping-step-circle {
  background: var(--shopping-gold-primary);
  color: white;
  border-color: var(--shopping-gold-primary);
}

.shopping-step.error .shopping-step-circle {
  background: var(--shopping-error);
  color: white;
  border-color: var(--shopping-error);
}

.shopping-step-label {
  font-size: 12px;
  color: var(--shopping-text-muted);
  margin-top: var(--shopping-space-sm);
  font-weight: 500;
  white-space: nowrap;
}

.shopping-step.active .shopping-step-label {
  color: var(--shopping-gold-primary);
  font-weight: 600;
}

.shopping-step.completed .shopping-step-label {
  color: var(--shopping-gold-primary);
}

.shopping-step.error .shopping-step-label {
  color: var(--shopping-error);
}

.shopping-step-line {
  width: 80px;
  height: 2px;
  background: var(--shopping-border);
  margin: 0 var(--shopping-space-sm);
  margin-bottom: 28px;
  transition: var(--shopping-transition);
}

.shopping-step-line.active {
  background: linear-gradient(90deg, var(--shopping-gold-primary), var(--shopping-gold-dark));
}

/* ----- 5. Cards ----- */
.shopping-card {
  background: var(--shopping-bg-white);
  border-radius: var(--shopping-radius-lg);
  padding: var(--shopping-space-lg);
  margin-bottom: var(--shopping-space-lg);
  box-shadow: var(--shopping-shadow-md);
  transition: var(--shopping-transition);
}

.shopping-card:hover {
  box-shadow: var(--shopping-shadow-lg);
}

.shopping-card-header {
  display: flex;
  align-items: center;
  gap: var(--shopping-space-sm);
  margin-bottom: var(--shopping-space-md);
  padding-bottom: var(--shopping-space-md);
  border-bottom: 1px solid var(--shopping-border-light);
}

.shopping-card-header h2,
.shopping-card-header h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--shopping-text-primary);
  margin: 0;
}

.shopping-card-header i {
  color: var(--shopping-gold-primary);
  font-size: 20px;
}

.shopping-card-body {
  padding: 0;
}

.shopping-card-footer {
  margin-top: var(--shopping-space-md);
  padding-top: var(--shopping-space-md);
  border-top: 1px solid var(--shopping-border-light);
}

/* ----- 6. Buttons ----- */
.shopping-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--shopping-space-sm);
  padding: 14px 32px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-sans);
  border-radius: var(--shopping-radius-md);
  border: none;
  cursor: pointer;
  transition: var(--shopping-transition);
  text-decoration: none;
  min-height: 48px;
  white-space: nowrap;
}

.shopping-btn i {
  font-size: 16px;
}

.shopping-btn-primary {
  background: linear-gradient(135deg, var(--shopping-gold-primary), var(--shopping-gold-dark));
  color: white;
  box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.shopping-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shopping-shadow-gold);
}

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

.shopping-btn-secondary {
  background: var(--shopping-bg-white);
  color: var(--shopping-text-secondary);
  border: 2px solid var(--shopping-border);
}

.shopping-btn-secondary:hover {
  background: var(--shopping-bg-light);
  border-color: var(--shopping-gold-primary);
  color: var(--shopping-gold-primary);
}

.shopping-btn-outline {
  background: transparent;
  color: var(--shopping-gold-primary);
  border: 2px solid var(--shopping-gold-primary);
}

.shopping-btn-outline:hover {
  background: var(--shopping-gold-light);
}

.shopping-btn-danger {
  background: var(--shopping-error);
  color: white;
}

.shopping-btn-danger:hover {
  background: #dc2626;
  transform: translateY(-2px);
}

.shopping-btn-block {
  display: flex;
  width: 100%;
}

.shopping-btn-sm {
  padding: 10px 20px;
  font-size: 13px;
  min-height: 40px;
}

.shopping-btn-lg {
  padding: 16px 40px;
  font-size: 16px;
  min-height: 56px;
}

.shopping-btn:disabled {
  background: var(--shopping-border);
  color: var(--shopping-text-muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Button Group */
.shopping-btn-group {
  display: flex;
  gap: var(--shopping-space-md);
  margin-top: var(--shopping-space-lg);
}

.shopping-btn-group-vertical {
  flex-direction: column;
}

.shopping-btn-group-center {
  justify-content: center;
}

/* ----- 7. Form Inputs ----- */
.shopping-form-group {
  margin-bottom: var(--shopping-space-md);
}

.shopping-form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--shopping-space-md);
}

.shopping-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--shopping-text-primary);
  margin-bottom: var(--shopping-space-xs);
}

.shopping-label-required::after {
  content: '*';
  color: var(--shopping-error);
  margin-left: 4px;
}

.shopping-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--shopping-text-primary);
  background: var(--shopping-bg-input);
  border: 2px solid var(--shopping-border);
  border-radius: var(--shopping-radius-md);
  transition: var(--shopping-transition);
  box-sizing: border-box;
}

.shopping-input:focus {
  outline: none;
  background: var(--shopping-bg-white);
  border-color: var(--shopping-gold-primary);
  box-shadow: 0 0 0 3px var(--shopping-gold-light);
}

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

.shopping-input.error {
  border-color: var(--shopping-error);
  background: var(--shopping-error-light);
}

.shopping-input.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.shopping-select {
  width: 100%;
  padding: 12px 40px 12px 16px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--shopping-text-primary);
  background: var(--shopping-bg-input);
  border: 2px solid var(--shopping-border);
  border-radius: var(--shopping-radius-md);
  transition: var(--shopping-transition);
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23999'%3E%3Cpath d='M12 15l-5-5h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
}

.shopping-select:focus {
  outline: none;
  background-color: var(--shopping-bg-white);
  border-color: var(--shopping-gold-primary);
  box-shadow: 0 0 0 3px var(--shopping-gold-light);
}

.shopping-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--shopping-text-primary);
  background: var(--shopping-bg-input);
  border: 2px solid var(--shopping-border);
  border-radius: var(--shopping-radius-md);
  transition: var(--shopping-transition);
  resize: vertical;
  min-height: 100px;
}

.shopping-textarea:focus {
  outline: none;
  background: var(--shopping-bg-white);
  border-color: var(--shopping-gold-primary);
  box-shadow: 0 0 0 3px var(--shopping-gold-light);
}

/* Input with icon */
.shopping-input-icon-wrapper {
  position: relative;
}

.shopping-input-icon-wrapper .shopping-input {
  padding-left: 44px;
}

.shopping-input-icon-wrapper i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--shopping-text-muted);
  font-size: 16px;
  pointer-events: none;
}

.shopping-input-icon-wrapper .shopping-input:focus + i,
.shopping-input-icon-wrapper .shopping-input:focus ~ i {
  color: var(--shopping-gold-primary);
}

/* Password toggle */
.shopping-password-wrapper {
  position: relative;
}

.shopping-password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--shopping-text-muted);
  transition: var(--shopping-transition);
}

.shopping-password-toggle:hover {
  color: var(--shopping-gold-primary);
}

/* ----- 8. Checkbox & Radio ----- */
.shopping-checkbox-wrapper,
.shopping-radio-wrapper {
  display: flex;
  align-items: flex-start;
  gap: var(--shopping-space-sm);
  cursor: pointer;
}

.shopping-checkbox,
.shopping-radio {
  appearance: none;
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--shopping-border);
  background: var(--shopping-bg-white);
  cursor: pointer;
  transition: var(--shopping-transition);
  position: relative;
  margin: 0;
}

.shopping-checkbox {
  border-radius: var(--shopping-radius-sm);
}

.shopping-radio {
  border-radius: 50%;
}

.shopping-checkbox:hover,
.shopping-radio:hover {
  border-color: rgba(212, 175, 55, 0.5);
}

.shopping-checkbox:checked,
.shopping-radio:checked {
  background: var(--shopping-gold-primary);
  border-color: var(--shopping-gold-primary);
}

.shopping-checkbox:checked::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.shopping-radio:checked::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: white;
}

.shopping-checkbox:focus,
.shopping-radio:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--shopping-gold-light);
}

.shopping-checkbox-label,
.shopping-radio-label {
  font-size: 14px;
  color: var(--shopping-text-primary);
  line-height: 1.4;
}

/* ----- 9. Messages ----- */
.shopping-message {
  padding: var(--shopping-space-md);
  border-radius: var(--shopping-radius-md);
  border-left: 4px solid;
  display: flex;
  align-items: flex-start;
  gap: var(--shopping-space-sm);
  margin-bottom: var(--shopping-space-md);
}

.shopping-message i {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

.shopping-message-content {
  flex: 1;
}

.shopping-message-error {
  background: var(--shopping-error-light);
  border-color: var(--shopping-error);
  color: #991b1b;
}

.shopping-message-error i {
  color: var(--shopping-error);
}

.shopping-message-warning {
  background: var(--shopping-warning-light);
  border-color: var(--shopping-warning);
  color: #92400e;
}

.shopping-message-warning i {
  color: var(--shopping-warning);
}

.shopping-message-success {
  background: var(--shopping-success-light);
  border-color: var(--shopping-success);
  color: #166534;
}

.shopping-message-success i {
  color: var(--shopping-success);
}

.shopping-message-info {
  background: var(--shopping-info-light);
  border-color: var(--shopping-info);
  color: #1e40af;
}

.shopping-message-info i {
  color: var(--shopping-info);
}

/* Field error */
.shopping-field-error {
  font-size: 12px;
  color: var(--shopping-error);
  margin-top: var(--shopping-space-xs);
  display: flex;
  align-items: center;
  gap: 4px;
}

.shopping-field-error i {
  font-size: 14px;
}

/* ----- 10. Product Items ----- */
.shopping-product-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.shopping-product-item {
  display: flex;
  align-items: center;
  gap: var(--shopping-space-md);
  padding: var(--shopping-space-md) 0;
  border-bottom: 1px solid var(--shopping-border-light);
}

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

.shopping-product-image {
  width: 64px;
  height: 64px;
  min-width: 64px;
  border-radius: var(--shopping-radius-md);
  object-fit: cover;
  background: var(--shopping-bg-light);
}

.shopping-product-info {
  flex: 1;
  min-width: 0;
}

.shopping-product-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--shopping-text-primary);
  margin: 0 0 4px 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.shopping-product-options {
  font-size: 12px;
  color: var(--shopping-text-muted);
  margin: 0;
}

.shopping-product-meta {
  text-align: right;
  white-space: nowrap;
}

.shopping-product-quantity {
  font-size: 13px;
  color: var(--shopping-text-secondary);
}

.shopping-product-price {
  font-size: 14px;
  font-weight: 600;
  color: var(--shopping-gold-primary);
}

/* ----- 11. Address Display ----- */
.shopping-address {
  display: flex;
  flex-direction: column;
  gap: var(--shopping-space-sm);
}

.shopping-address-row {
  display: flex;
  align-items: flex-start;
  gap: var(--shopping-space-sm);
}

.shopping-address-icon {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: var(--shopping-radius-md);
  background: rgba(212, 175, 55, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.shopping-address-icon i {
  color: var(--shopping-gold-primary);
  font-size: 16px;
}

.shopping-address-content {
  flex: 1;
}

.shopping-address-label {
  font-size: 11px;
  color: var(--shopping-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.shopping-address-value {
  font-size: 14px;
  color: var(--shopping-text-primary);
}

/* Address Card (Selectable) */
.shopping-address-card {
  padding: var(--shopping-space-md);
  border: 2px solid var(--shopping-border);
  border-radius: var(--shopping-radius-lg);
  cursor: pointer;
  transition: var(--shopping-transition);
  position: relative;
}

.shopping-address-card:hover {
  border-color: rgba(212, 175, 55, 0.5);
  background: var(--shopping-gold-lighter);
}

.shopping-address-card.selected {
  border-color: var(--shopping-gold-primary);
  background: var(--shopping-gold-lighter);
}

.shopping-address-card.selected::before {
  content: '';
  position: absolute;
  top: 12px;
  right: 12px;
  width: 24px;
  height: 24px;
  background: var(--shopping-gold-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.shopping-address-card.selected::after {
  content: '';
  position: absolute;
  top: 18px;
  right: 18px;
  width: 6px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ----- 12. Payment Methods ----- */
.shopping-payment-list {
  display: flex;
  flex-direction: column;
  gap: var(--shopping-space-sm);
}

.shopping-payment-option {
  display: flex;
  align-items: center;
  gap: var(--shopping-space-md);
  padding: var(--shopping-space-md);
  border: 2px solid var(--shopping-border);
  border-radius: var(--shopping-radius-lg);
  cursor: pointer;
  transition: var(--shopping-transition);
}

.shopping-payment-option:hover {
  border-color: rgba(212, 175, 55, 0.5);
  background: var(--shopping-gold-lighter);
}

.shopping-payment-option.selected {
  border-color: var(--shopping-gold-primary);
  background: var(--shopping-gold-lighter);
}

.shopping-payment-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--shopping-radius-md);
  background: var(--shopping-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.shopping-payment-icon i {
  font-size: 20px;
  color: var(--shopping-text-secondary);
}

.shopping-payment-option.selected .shopping-payment-icon {
  background: var(--shopping-gold-light);
}

.shopping-payment-option.selected .shopping-payment-icon i {
  color: var(--shopping-gold-primary);
}

.shopping-payment-label {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--shopping-text-primary);
}

.shopping-payment-description {
  font-size: 12px;
  color: var(--shopping-text-muted);
  margin-top: 2px;
}

/* ----- 13. Order Summary ----- */
.shopping-summary {
  background: var(--shopping-bg-light);
  border-radius: var(--shopping-radius-lg);
  padding: var(--shopping-space-lg);
}

.shopping-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--shopping-space-sm) 0;
}

.shopping-summary-row.total {
  border-top: 2px solid var(--shopping-border);
  margin-top: var(--shopping-space-sm);
  padding-top: var(--shopping-space-md);
}

.shopping-summary-label {
  font-size: 14px;
  color: var(--shopping-text-secondary);
}

.shopping-summary-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--shopping-text-primary);
}

.shopping-summary-row.total .shopping-summary-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--shopping-text-primary);
}

.shopping-summary-row.total .shopping-summary-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--shopping-gold-primary);
}

/* ----- 14. Divider ----- */
.shopping-divider {
  height: 1px;
  background: var(--shopping-border-light);
  margin: var(--shopping-space-lg) 0;
}

.shopping-divider-text {
  display: flex;
  align-items: center;
  gap: var(--shopping-space-md);
  margin: var(--shopping-space-lg) 0;
}

.shopping-divider-text::before,
.shopping-divider-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--shopping-border);
}

.shopping-divider-text span {
  font-size: 13px;
  color: var(--shopping-text-muted);
  white-space: nowrap;
}

/* ----- 15. Success State ----- */
.shopping-success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--shopping-space-lg);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--shopping-gold-primary), var(--shopping-gold-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  animation: shopping-bounce-in 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.shopping-success-icon i {
  font-size: 40px;
  color: white;
}

@keyframes shopping-bounce-in {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.shopping-success-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--shopping-text-primary);
  text-align: center;
  margin: 0 0 var(--shopping-space-sm) 0;
}

.shopping-success-message {
  font-size: 14px;
  color: var(--shopping-text-secondary);
  text-align: center;
  margin: 0 0 var(--shopping-space-lg) 0;
}

.shopping-order-number {
  background: var(--shopping-bg-light);
  border-radius: var(--shopping-radius-md);
  padding: var(--shopping-space-md);
  text-align: center;
  margin-bottom: var(--shopping-space-lg);
}

.shopping-order-number-label {
  font-size: 12px;
  color: var(--shopping-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.shopping-order-number-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--shopping-gold-primary);
  font-family: var(--font-sans);
}

/* ----- 16. Error State ----- */
.shopping-error-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--shopping-space-lg);
  border-radius: 50%;
  background: var(--shopping-error);
  display: flex;
  align-items: center;
  justify-content: center;
}

.shopping-error-icon i {
  font-size: 40px;
  color: white;
}

.shopping-error-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--shopping-text-primary);
  text-align: center;
  margin: 0 0 var(--shopping-space-sm) 0;
}

.shopping-error-message {
  font-size: 14px;
  color: var(--shopping-text-secondary);
  text-align: center;
  margin: 0 0 var(--shopping-space-lg) 0;
}

/* ----- 17. Link Styles ----- */
.shopping-link {
  color: var(--shopping-gold-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--shopping-transition);
}

.shopping-link:hover {
  color: var(--shopping-gold-dark);
  text-decoration: underline;
}

.shopping-link-muted {
  color: var(--shopping-text-muted);
}

.shopping-link-muted:hover {
  color: var(--shopping-gold-primary);
}

/* ----- 18. Table Styles ----- */
.shopping-table {
  width: 100%;
  border-collapse: collapse;
}

.shopping-table th,
.shopping-table td {
  padding: var(--shopping-space-sm) var(--shopping-space-md);
  text-align: left;
  border-bottom: 1px solid var(--shopping-border-light);
}

.shopping-table th {
  font-size: 12px;
  font-weight: 600;
  color: var(--shopping-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--shopping-bg-light);
}

.shopping-table td {
  font-size: 14px;
  color: var(--shopping-text-primary);
}

/* ----- 19. Badge ----- */
.shopping-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 20px;
}

.shopping-badge-gold {
  background: var(--shopping-gold-light);
  color: var(--shopping-gold-dark);
}

.shopping-badge-success {
  background: var(--shopping-success-light);
  color: var(--shopping-success);
}

.shopping-badge-error {
  background: var(--shopping-error-light);
  color: var(--shopping-error);
}

.shopping-badge-warning {
  background: var(--shopping-warning-light);
  color: var(--shopping-warning);
}

/* ----- 20. Responsive ----- */
@media (max-width: 768px) {
  .shopping-container {
    padding: var(--shopping-space-md);
  }

  .shopping-title {
    font-size: 24px;
  }

  .shopping-card {
    padding: var(--shopping-space-md);
    border-radius: var(--shopping-radius-md);
  }

  .shopping-step-line {
    width: 40px;
  }

  .shopping-step-circle {
    width: 36px;
    height: 36px;
  }

  .shopping-step-label {
    font-size: 10px;
  }

  .shopping-form-row {
    grid-template-columns: 1fr;
  }

  .shopping-btn-group {
    flex-direction: column;
  }

  .shopping-btn-group .shopping-btn {
    width: 100%;
  }

  .shopping-product-image {
    width: 50px;
    height: 50px;
    min-width: 50px;
  }

  .shopping-summary-row.total .shopping-summary-value {
    font-size: 18px;
  }

  .shopping-address-card {
    padding: var(--shopping-space-sm);
  }
}

/* ----- 21. Accessibility ----- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus visible for keyboard navigation */
.shopping-btn:focus-visible,
.shopping-input:focus-visible,
.shopping-select:focus-visible,
.shopping-checkbox:focus-visible,
.shopping-radio:focus-visible,
.shopping-link:focus-visible {
  outline: 2px solid var(--shopping-gold-primary);
  outline-offset: 2px;
}

/* ----- 22. Utilities ----- */
.shopping-text-center {
  text-align: center;
}

.shopping-text-right {
  text-align: right;
}

.shopping-mb-0 { margin-bottom: 0; }
.shopping-mb-sm { margin-bottom: var(--shopping-space-sm); }
.shopping-mb-md { margin-bottom: var(--shopping-space-md); }
.shopping-mb-lg { margin-bottom: var(--shopping-space-lg); }
.shopping-mb-xl { margin-bottom: var(--shopping-space-xl); }

.shopping-mt-0 { margin-top: 0; }
.shopping-mt-sm { margin-top: var(--shopping-space-sm); }
.shopping-mt-md { margin-top: var(--shopping-space-md); }
.shopping-mt-lg { margin-top: var(--shopping-space-lg); }
.shopping-mt-xl { margin-top: var(--shopping-space-xl); }

.shopping-hidden {
  display: none !important;
}

.shopping-flex {
  display: flex;
}

.shopping-flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.shopping-gap-sm {
  gap: var(--shopping-space-sm);
}

.shopping-gap-md {
  gap: var(--shopping-space-md);
}

.shopping-my-sm {
  margin-top: var(--shopping-space-sm);
  margin-bottom: var(--shopping-space-sm);
}

/* ----- 23. Section Titles ----- */
.shopping-section-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--shopping-text-primary);
  margin: 0 0 var(--shopping-space-md) 0;
}

.shopping-subsection-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--shopping-text-secondary);
  margin: 0 0 var(--shopping-space-sm) 0;
}

/* ----- 24. Info Display (Confirm Page) ----- */
.shopping-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--shopping-space-md);
}

.shopping-info-row {
  display: flex;
  align-items: flex-start;
  gap: var(--shopping-space-sm);
}

.shopping-info-icon {
  width: 32px;
  height: 32px;
  min-width: 32px;
  background: rgba(212, 175, 55, 0.1);
  border-radius: var(--shopping-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.shopping-info-icon i {
  color: var(--shopping-gold-primary);
  font-size: 16px;
}

.shopping-info-content {
  flex: 1;
}

.shopping-info-label {
  font-size: 11px;
  color: var(--shopping-text-muted);
  margin-bottom: 4px;
}

.shopping-info-value {
  color: var(--shopping-text-primary);
  font-size: 14px;
  line-height: 1.6;
}

.shopping-info-sub {
  font-size: 12px;
  color: var(--shopping-text-muted);
  margin-top: 2px;
}

/* ----- 25. Product List (Confirm Page) ----- */
.shopping-product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--shopping-radius-md);
}

.shopping-product-option {
  font-size: 12px;
  color: var(--shopping-text-muted);
}

.shopping-product-qty-price {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--shopping-text-secondary);
  margin-top: var(--shopping-space-xs);
}

.shopping-product-subtotal {
  text-align: right;
  font-size: 13px;
  color: var(--shopping-text-primary);
  margin-top: var(--shopping-space-xs);
}

/* ----- 26. Summary Card (Confirm Page) ----- */
.shopping-summary-card {
  position: sticky;
  top: 20px;
}

.shopping-summary-list {
  font-size: 14px;
}

.shopping-summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--shopping-space-sm);
}

.shopping-summary-label {
  color: var(--shopping-text-secondary);
}

.shopping-summary-value {
  color: var(--shopping-text-primary);
}

.shopping-summary-subtotal {
  font-weight: 500;
}

.shopping-summary-subtotal span:last-child {
  font-size: 16px;
}

.shopping-summary-total {
  font-weight: 600;
  font-size: 16px;
  color: var(--shopping-gold-primary);
}

/* ----- 27. Tax Info ----- */
.shopping-tax-info {
  margin-top: var(--shopping-space-md);
  padding-top: var(--shopping-space-md);
  border-top: 1px solid var(--shopping-border);
}

.shopping-tax-title {
  font-size: 11px;
  color: var(--shopping-text-muted);
  margin: 0 0 var(--shopping-space-sm) 0;
}

.shopping-tax-row {
  font-size: 11px;
  color: var(--shopping-text-secondary);
  display: flex;
  justify-content: space-between;
}

/* ----- 28. Actions ----- */
.shopping-actions {
  display: flex;
  gap: var(--shopping-space-md);
  justify-content: space-between;
}

@media (max-width: 480px) {
  .shopping-actions {
    flex-direction: column;
  }

  .shopping-actions .shopping-btn {
    width: 100%;
  }
}

/* ----- 29. Required Mark ----- */
.shopping-required {
  color: var(--shopping-error);
  font-size: 12px;
  margin-left: 2px;
}

/* ----- 30. Text Colors ----- */
.shopping-text-secondary {
  color: var(--shopping-text-secondary);
}

.shopping-text-muted {
  color: var(--shopping-text-muted);
}

/* ----- 31. Modern Enhancements ----- */

/* カードの輪郭を明確に（色は既存トークン） */
.shopping-card {
  border: 1px solid var(--shopping-border-light);
}

/* 支払い方法など、ラジオ内包カードの選択状態をCSSのみで反映 */
.shopping-payment-option:has(.shopping-radio:checked) {
  border-color: var(--shopping-gold-primary);
  background: var(--shopping-gold-lighter);
  box-shadow: 0 0 0 3px var(--shopping-gold-light);
}

.shopping-payment-option:has(.shopping-radio:checked) .shopping-payment-label {
  font-weight: 600;
}

/* 変更ボタン（チップ型） */
.shopping-edit-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--shopping-gold-primary);
  background: var(--shopping-gold-lighter);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--shopping-transition-fast);
}

.shopping-edit-btn:hover {
  background: var(--shopping-gold-light);
  border-color: var(--shopping-gold-primary);
}

.shopping-edit-btn i {
  font-size: 13px;
}

/* 4ステップ表示の小画面調整 */
@media (max-width: 480px) {
  .shopping-step-line {
    width: 24px;
    margin: 0 4px 28px;
  }

  .shopping-step-label {
    font-size: 9px;
  }
}