.product {
  cursor: pointer;
  margin-bottom: 2rem;
}

.product img {
  width: 100%;
  height: auto;
  box-sizing: border-box;
  object-fit: cover;
  transition: 0.3s all;
}

.product:hover img {
  opacity: 0.7;
}

.product .buy-btn {
  background: var(--main-color);
  transform: translateY(20px);
  opacity: 0;
  border-radius: 0.3rem;
  transition: 0.3s all;
}
.product:hover .buy-btn {
  transform: translateY(0px);
  opacity: 1;
}

.product .buy-btn:hover {
  background-color: var(--main-color-btn-hover);
}