body {
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    height: 100vh;
  }

  @keyframes gradient {
    0% {
      background-position: 0% 50%;
    }
    50% {
      background-position: 100% 50%;
    }
    100% {
      background-position: 0% 50%;
    }
  }

  h1 {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
  }
  .or-separator {
    margin: 20px 0;
    text-align: center;
    font-weight: bold;
    color: white;
  }

  .button-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
  }

  .button-container .custom-btn {
    margin: 0 10px;
  }

  .button-container .separator {
    color: #fff;
    font-family: 'Lato', sans-serif;
    font-weight: 500;
  }

  button {
    text-align: center;
  }

  .custom-btn {
    width: 130px;
    height: 40px;
    color: #fff;
    border-radius: 5px;
    padding: 10px 25px;
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
    box-shadow: inset 2px 2px 2px 0px rgba(255,255,255,.5),
    7px 7px 20px 0px rgba(0,0,0,.1),
    4px 4px 5px 0px rgba(0,0,0,.1);
    outline: none;
  }

  .btn-6 {
    background: rgb(247,150,192);
    background: radial-gradient(circle, rgba(247,150,192,1) 0%, rgba(118,174,241,1) 100%);
    line-height: 42px;
    padding: 0;
    border: none;
  }

  .btn-6 span {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
  }

  .btn-6:before,
  .btn-6:after {
    position: absolute;
    content: "";
    height: 0%;
    width: 1px;
    box-shadow:
      -1px -1px 20px 0px rgba(255,255,255,1),
      -4px -4px 5px 0px rgba(255,255,255,1),
      7px 7px 20px 0px rgba(0,0,0,.4),
      4px 4px 5px 0px rgba(0,0,0,.3);
  }

  .btn-6:before {
    right: 0;
    top: 0;
    transition: all 500ms ease;
  }

  .btn-6:after {
    left: 0;
    bottom: 0;
    transition: all 500ms ease;
  }

  .btn-6:hover{
    background: transparent;
    color: #76aef1;
    box-shadow: none;
  }

  .btn-6:hover:before {
    transition: all 500ms ease;
    height: 100%;
  }

  .btn-6:hover:after {
    transition: all 500ms ease;
    height: 100%;
  }

  .btn-6 span:before,
  .btn-6 span:after {
    position: absolute;
    content: "";
    box-shadow:
      -1px -1px 20px 0px rgba(255,255,255,1),
      -4px -4px 5px 0px rgba(255,255,255,1),
      7px 7px 20px 0px rgba(0,0,0,.4),
      4px 4px 5px 0px rgba(0,0,0,.3);
  }

  .btn-6 span:before {
    left: 0;
    top: 0;
    width: 0%;
    height: .5px;
    transition: all 500ms ease;
  }

  .btn-6 span:after {
    right: 0;
    bottom: 0;
    width: 0%;
    height: .5px;
    transition: all 500ms ease;
  }

  .btn-6 span:hover:before {
    width: 100%;
  }

  .btn-6 span:hover:after {
    width: 100%;
  }

  .btn-12 {
    position: relative;
    right: 20px;
    bottom: 20px;
    border: none;
    box-shadow: none;
    width: 130px;
    height: 40px;
    line-height: 42px;
    -webkit-perspective: 230px;
    perspective: 230px;
  }

  .btn-12 span {
    background: rgb(0,172,238);
    background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
    display: block;
    position: absolute;
    width: 130px;
    height: 40px;
    box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
    7px 7px 20px 0px rgba(0,0,0,.1),
    4px 4px 5px 0px rgba(0,0,0,.1);
    border-radius: 5px;
    margin:0;
    text-align: center;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-transition: all .3s;
    transition: all .3s;
  }

  .btn-12 span:nth-child(1) {
    box-shadow:
    -7px -7px 20px 0px #fff9,
    -4px -4px 5px 0px #fff9,
    7px 7px 20px 0px #0002,
    4px 4px 5px 0px #0001;
    -webkit-transform: rotateX(90deg);
    -moz-transform: rotateX(90deg);
    transform: rotateX(90deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px;
  }

  .btn-12 span:nth-child(2) {
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
    -webkit-transform-origin: 50% 50% -20px;
    -moz-transform-origin: 50% 50% -20px;
    transform-origin: 50% 50% -20px;
  }

  .btn-12:hover span:nth-child(1) {
    box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
    7px 7px 20px 0px rgba(0,0,0,.1),
    4px 4px 5px 0px rgba(0,0,0,.1);
    -webkit-transform: rotateX(0deg);
    -moz-transform: rotateX(0deg);
    transform: rotateX(0deg);
  }

  .btn-12:hover span:nth-child(2) {
    box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
    7px 7px 20px 0px rgba(0,0,0,.1),
    4px 4px 5px 0px rgba(0,0,0,.1);
    color: transparent;
    -webkit-transform: rotateX(-90deg);
    -moz-transform: rotateX(-90deg);
    transform: rotateX(-90deg);
  }

  .button-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .button-container .custom-btn {
    margin: 0 10px;
  }

  .langsel {
    width: 90%;
    margin: 40px auto;
    text-align: center;
  }

  /* 3 */
.btn-3 {
  background: rgb(0,172,238);
background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
  width: 130px;
  height: 40px;
  line-height: 42px;
  padding: 0;
  border: none;
  
}
.btn-3 span {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}
.btn-3:before,
.btn-3:after {
  position: absolute;
  content: "";
  right: 0;
  top: 0;
   background: rgba(2,126,251,1);
  transition: all 0.3s ease;
}
.btn-3:before {
  height: 0%;
  width: 2px;
}
.btn-3:after {
  width: 0%;
  height: 2px;
}
.btn-3:hover{
   background: transparent;
  box-shadow: none;
}
.btn-3:hover:before {
  height: 100%;
}
.btn-3:hover:after {
  width: 100%;
}
.btn-3 span:hover{
   color: rgba(2,126,251,1);
}
.btn-3 span:before,
.btn-3 span:after {
  position: absolute;
  content: "";
  left: 0;
  bottom: 0;
   background: rgba(2,126,251,1);
  transition: all 0.3s ease;
}
.btn-3 span:before {
  width: 2px;
  height: 0%;
}
.btn-3 span:after {
  width: 0%;
  height: 2px;
}
.btn-3 span:hover:before {
  height: 100%;
}
.btn-3 span:hover:after {
  width: 100%;
}