.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px;
    border-bottom: 1px solid #ccc;
    background-color: var(--accent-color-two);
    color: white;
    
  }
  
  .column, .operator, .criteria {
    flex: 1;
    text-align: left;
    padding: 4px;
  }