body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 70px;
  }
  
  .flex-grow-1 {
    flex-grow: 1;
  }
  
  .sidebar {
    width: 250px;
  }
  
  @media (min-width: 992px) {
    .sidebar {
      position: fixed;
      top: 56px;
      bottom: 0;
      left: 0;
      z-index: 100;
      padding-top: 1rem;
      background-color: #f8f9fa;
      border-right: 1px solid #ddd;
    }
  
    .content-area {
      margin-left: 250px;
    }
  }