:host {
  display: block;
}

.s-bought-together-checkbox:checked ~ .s-bought-together-checkmark {
  background-color: var(--color-primary, #2ECC71);
  border-color: var(--color-primary, #2ECC71);
}
.s-bought-together-checkbox:checked ~ .s-bought-together-checkmark::after {
  content: "";
  display: block;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}