*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background: #04041C;
    min-height: 100%;
  }
  nav {
    position: fixed;
    top: 0;
    left: 0;
    height: 70px;
    width: 100%;
    display: flex;
    align-items: center;
    background: #ABABB5;
    box-shadow: 0 0 1px rgba(0, 0, 0, 0.1);
    z-index: 2;
  }
  nav .logo {
    display: flex;
    align-items: center;
    margin: 0 24px;
  }
  .logo .menu-icon {
    color: #FFFFFF;
    font-size: 24px;
    margin-right: 14px;
    cursor: pointer;
  }
  .logo .logo-name {
    color: #FFFFFF;
    font-size: 22px;
    font-weight: 500;
  }
  nav .sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    height: 100%;
    width: 260px;
    padding: 20px 0;
    background-color: #545674;
    box-shadow: 0 5px 1px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
  }
  nav.open .sidebar {
    left: 0;
  }
  .sidebar .sidebar-content {
    display: flex;
    height: 100%;
    flex-direction: column;
    justify-content: space-between;
    padding: 30px 16px;
  }
  .sidebar-content .list {
    list-style: none;
  }
  .list .nav-link {
    display: flex;
    align-items: center;
    margin: 8px 0;
    padding: 14px 12px;
    border-radius: 8px;
    text-decoration: none;
  }
  .lists .nav-link:hover {
    background-color: #4F3CBD;
  }
  .nav-link .icon {
    margin-right: 14px;
    font-size: 20px;
    color: #FFFFFF;
  }
  .nav-link .link {
    font-size: 16px;
    color: #FFFFFF;
    font-weight: 400;
  }
  .lists .nav-link:hover .icon,
  .lists .nav-link:hover .link {
    color: #fff;
  }
  .overlay {
    position: fixed;
    top: 0;
    left: -100%;
    height: 1000vh;
    width: 200%;
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s ease;
    background: rgba(0, 0, 0, 0.3);
  }
  nav.open ~ .overlay {
    opacity: 1;
    left: 260px;
    pointer-events: auto;
  }
  .justify-content-center{
    justify-content: center;
  }
  .d-flex{
    display: flex;
  }
  .align-items-center{
    align-items: center;
  }
  .padding-left{
    padding-left: 200px;
  }
  .footer{
    margin-top: 5px;
    padding-bottom: 3px;
    padding-top: 3px;
    width: 100%;
    background-color: #7D85A0;
    color: #000000;
  }
  .text-center{
    text-align: center;
  }
  .gallery{
    width: 260px;
    height: auto;
    margin: 2px;
  }
  .cr{
    width:980px;
    height: auto;
  }
  .cis{
    width:25opx;
    height:150px;
  }
  .reference{
  position: relative;
  box-shadow: 2px 2px 2px 2px rgba(0, 0, 0, 0.541);
}
.popout-menu{
  text-align: left;
  position: absolute;
  visibility: hidden;
  left: 100%;
  background: #5e24aa;
  color: white;width: 200px;
  padding: 15px;
  z-index: 1;
  box-shadow: 10px 10px 10px 10px rgba(0, 0, 0, 0.541);
  font-size: 15px;
}
.reference:hover > .popout-menu,
.reference:focus > .popout-menu,
.reference:focus-within > .popout-menu{
  visibility: visible;
}
.fs{
  font-size: 20px;
}
.fsb{
  font-size: 30px;
}
.artcl{
  height:auto;
  width:300px;
}
.tdn{
  text-decoration: none;
}
.bttn{
  background-color: #4F3CBD;
  color: white;
  padding: 14px 20px;
  margin: 8px 0;
  border: none;
  cursor: pointer;
  width: 100%;
}
.bttn:hover{
  opacity: 0.8;
}