.sidebar-container {
    position: fixed;
    width: 250px;
    height: 100%;
    left: 0;
    overflow-x: hidden;
    overflow-y: auto;
    background: #f1f3f8;
    color: #000;
    box-shadow: 1px 0 5px 0px #888;
  }
  
  .sidebar-logo {
    padding: 10px 15px 10px 30px;
    font-size: 20px;
    background-color: #07689f;
  }
  
  .sidebar-navigation {
    padding: 0;
    margin: 0;
    list-style-type: none;
    position: relative;
  }
  
  .sidebar-navigation li {
    background-color: transparent;
    position: relative;
    display: inline-block;
    width: 100%;
    line-height: 20px;
  }
  
  .sidebar-navigation li a {
    padding: 10px 15px 10px 30px;
    display: block;
    color: #000;
  }

  .sidebar-navigation li.active {
    background-color: #77a1d8;
  }

  .sidebar-navigation li.active a {
    color: #fff;
  }



  .sidebar-navigation li a:hover {
    color: #fff;
  }
  
  .sidebar-navigation li .fa {
    margin-right: 10px;
  }
  
  .sidebar-navigation li a:active,
  .sidebar-navigation li a:hover,
  .sidebar-navigation li a:focus {
    text-decoration: none;
    outline: none;
  }
  
  .sidebar-navigation li::before {
    background-color: #07689f;
    position: absolute;
    content: '';
    height: 100%;
    left: 0;
    top: 0;
    -webkit-transition: width 0.2s ease-in;
    transition: width 0.2s ease-in;
    width: 3px;
    z-index: -1;
  }
  
  .sidebar-navigation li:hover::before {
    width: 100%;
  }
  
  .sidebar-navigation .header {
    font-size: 12px;
    text-transform: uppercase;
    background-color: #f1f3f8;
    padding: 10px 15px 10px 30px;
  }
  
  .sidebar-navigation .header::before {
    background-color: transparent;
  }
  
  #contentContainer.content-container { /* Sidebar kapalı iken içerik bölümü */
    padding-left: 250px;
    transition: all 0.6s ease-in-out;
  }
  #contentContainer.passive { /* Sidebar açık iken içerik bölümü */
    padding-left: 0px;
    transition: all 0.6s ease-in-out;
  }
  #sidebar.active { /* Sidebar kapalı */
    margin-left: -250px;
    transition: all 0.6s ease-in-out;
  }
  #sidebar.passive { /* Sidebar açık */
    margin-left: 0px;
    transition: all 0.6s ease-in-out;
  }