.mb-2 {
  margin-bottom: 2rem;
}

.post-layout {
  display: flex;
  flex-direction: column;
}
.post-layout main {
  flex: 1;
}
.post-layout main .thumbnail {
  width: 100%;
  height: 300px;
  object-fit: contain;
  object-position: center;
}
.post-layout main > div {
  background-color: rgba(255, 255, 255, .71);
  padding: 2rem;
  height: 100%;
}

.posts {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  grid-column-gap: 2rem;
  grid-row-gap: 2rem;
}
.posts > a {
  text-decoration: none;
  color: rgba(var(--black), .76);
}
.posts > div {
  width: 100%;
}
.post-card {
  background-color: white;
  border-radius: 1rem;
  box-shadow: 0 2px 4px rgba(var(--black), .21);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  margin: 0 1rem;
}
.post-card:hover {
  transform: translate(-4px, -4px); /* Up and left by 4px */
  box-shadow: 0 8px 16px rgba(var(--black), 0.3); /* deeper shadow for “lifted” look */
}
.post-card > img {
  width: 100%;
  object-fit: cover;
  object-position: center;
  border-top-left-radius: 1rem;
  border-top-right-radius: 1rem;
}
.post-card .post-body {
  padding: 2rem;
}

@media (min-width: 768px) {
  .post-layout main .thumbnail {
    height: 375px;
    margin: 1rem 0;
  }
}
@media (min-width: 992px) {
  .posts {
    grid-template-columns: repeat(2, 1fr);
  }
  .post-card {
    margin: 0;
  }
  .post-layout main .thumbnail {
    height: 375px;
    margin: 2rem 0;
  }
}