html {
    scroll-behavior: smooth;
  }
  
  :where([class^="ri-"])::before { content: "\f3c2"; }
  .size-guide-modal, .cart-modal, .product-detail-modal, .checkout-modal {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1000;
  max-height: 90vh;
  overflow-y: auto;
  }
  .modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  }
  input[type="number"]::-webkit-inner-spin-button,
  input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
  }
  .color-option {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  position: relative;
  }
  .color-option.selected::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 2px solid #4f46e5;
  border-radius: 50%;
  }
  .size-option {
  padding: 6px 12px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  }
  .size-option.selected {
  border-color: #4f46e5;
  color: #4f46e5;
  background-color: rgba(79, 70, 229, 0.05);
  }
  .payment-option.border-primary {
  border-color: #4f46e5;
  background-color: rgba(79, 70, 229, 0.05);
  }