.project-card {
  perspective: 1000px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.project-card:hover .card-inner {
  transform: rotateY(180deg);
}

.card-front {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--card-bg, #fff);
}
.card-back {
position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--card-bg, #fff);  
}

.card-front h3 {
  margin-bottom: 10px;
}

.card-back {
  transform: rotateY(180deg);
  background: #000; /* or transparent */
}

.card-back img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}