.certificate-card {
  background: #fafafa;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(20, 7, 202, 0.4);
  transition: transform .3s;
}

.certificate-card:hover {
  transform: translateY(-6px);
}

.certificate-card img {
  width: 100%;
  height: auto;
  display: block;
}

/* Badge */
.badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  color: #fff;
}

.badge-international {
  background: linear-gradient(45deg,#ff512f,#f09819);
}

.badge-national {
  background: linear-gradient(45deg,#36d1dc,#5b86e5);
}

.badge-school {
  background: linear-gradient(45deg,#11998e,#38ef7d);
}