.materi-container {
  max-width: 1200px;
  margin: 20px auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  padding: 0 10px;
}
.materi-card {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.2s;
}
.materi-card:hover {
  transform: translateY(-5px);
}
.materi-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.materi-card .content {
  padding: 15px;
}
.materi-card h3 {
  font-size: 18px;
  margin: 0 0 10px;
  color: #333;
}
.materi-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.5;
  margin: 0 0 15px;
}
.materi-card a {
  display: inline-block;
  padding: 10px 15px;
  background-color: #6f42c1;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-size: 14px;
  text-align: center;
}
.materi-card a:hover {
  background-color: #59329d;
  color: white;
}
.materi-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.no-image {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 200px;
  background-color: #f3f3f3;
  color: #6f42c1;
}