.grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  column-gap: 10px;
  row-gap: 10px;
  justify-items: stretch;
  align-items: stretch;
  justify-content: stretch;
  align-content: stretch;
  width: 100%;
  height: 400px;
  padding: 20px;
  border: 1px solid #ddd;
}

.grid-item {
  padding: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  color: #333;
  min-height: 60px;
}


.grid-item:nth-child(1) {
  background-color: #e3f2fd;
}

.grid-item:nth-child(2) {
  background-color: #f3e5f5;
}

.grid-item:nth-child(3) {
  background-color: #e8f5e8;
}

.grid-item:nth-child(4) {
  background-color: #fff3e0;
}

.grid-item:nth-child(5) {
  background-color: #fce4ec;
}

.grid-item:nth-child(6) {
  background-color: #e0f2f1;
}