.gundem-round {
  position: relative;
  overflow: hidden;
  transition: background 0.4s ease, color 0.3s ease;
  min-height: 300px;
  min-width: 200px; /**/
  color : #050131;
  border-color: #dee2e6;
  box-shadow: 0 8px 8px rgba(0,0,0,0.15);
}

.gundem_overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--background-image) center/cover no-repeat;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.gundem-round::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-color: rgba(12, 0, 148, 0.5);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}

.gundem-round:hover .gundem_overlay,
.gundem-round:hover::after {
  opacity: 1;
  color: #fff;
}

.gundem-round:hover {
  color: #fff;
}

.gundem-round h5, .gundem-round p {
  position: relative;
  z-index: 2;
}