/* Indicador simples de atualização */
#gs-cart-updating{
  position: fixed;
  left: 50%;
  top: 12px;
  transform: translateX(-50%);
  padding: 6px 12px;
  background: #222;
  color: #fff;
  font-size: 12px;
  line-height: 1;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  z-index: 99999;
}
#gs-cart-updating.visible{ opacity: .9; }

/* Cupom recolhível */
.gs-coupon-toggle{
  margin: 0 0 8px 0;
  background: #f5f5f5;
  color: #333;
  border: 1px solid #e3e3e3;
  cursor: pointer;
}
.gs-coupon-panel{
  border: 1px solid #eee;
  padding: 10px;
  border-radius: 6px;
  background: #fafafa;
  margin-bottom: 12px;
}
.gs-coupon-panel.open{ display: block; }