.hero{
  background: linear-gradient(120deg, #111 0%, #2b2b2b 60%, #111 100%);
}
.placeholder-img{
  width:100%;
  height:220px;
  background: linear-gradient(135deg,#e9ecef,#f8f9fa);
}
.card-img-top{ object-fit:cover; height:220px; }