#product-grid {
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:10px;
}

#product-grid .grid__item {
  width:100%;
  max-width:100%;
}

@media screen and (max-width: 2000px) {
  #product-grid { grid-template-columns:repeat(4,1fr); }
}

@media screen and (max-width: 1400px) {
  #product-grid { grid-template-columns:repeat(3,1fr); }
}

@media screen and (max-width: 1024px) {
  #product-grid { grid-template-columns:repeat(2,1fr); }
}