body {
  background: linear-gradient(to top right,  blueviolet, #290c46);
  /* border:10px solid black;
  box-shadow: inset 0 0 1rem white,
  0 0 10px rgb(0, 238, 255);
  border: none; */
}

#left {
  font-family: serif;
  color:  rgb(124, 235, 239);
  font-size: 60px;
  position: absolute;
  top: -31px;
  left: 100px;
  text-shadow: 0 0 3rem white,
    0 0 10px rgb(0, 238, 255);
  cursor: pointer;
  text-align: center;
    padding: 31px 31px;
    height: 45px;
    width: 250px;
    border:2.5px solid #000000;
    border-top: none;
    border-left: none;
    border-right:none ;
    
}


#left:hover {
  transform: translate(-5px, -5px);
  color: #000000;
  cursor: pointer;
  text-shadow: 0 0 1rem white,
    0 0 30px rgb(0, 238, 255);
}

#right {
  color:  rgb(0, 0, 0);
  text-align: center;
  font-size: 60px;
  position: absolute;
  top: -10px;
  left: 420px;
  text-shadow: 0 0 1rem #ffffff;
    padding: 8px 8px;
    width: 250px;
    border:2px solid rgb(0, 238, 255);
    border-top: none;
    border-left: none;
    border-right:none ;
    width: 250px;
}


#right:hover {
  transform: translate(5px, -5px);
  color: rgb(124, 235, 239);
  cursor: pointer;
  text-shadow: 0 0 1rem white,
    0 0 30px rgb(0, 238, 255);
}

#dow{
  color:  rgb(0, 0, 0);
  text-align: center;
  font-size: 18px;
  position: absolute;
  top: 110px;
  left: 240px;
  text-shadow: 0 0 1rem #ffffff;
    padding: 8px 8px;
    width: 340px;
    letter-spacing: 4px;
}


#viewport {
  margin-top: 1.5%;
  margin-left: 55%;
  border-width: 10px;
  border-style: solid;
  border-image: linear-gradient(to bottom, #009dc5, #007694) 1;
  margin-bottom: 1%;
  box-shadow: 0 0 1rem black,
  0 10px 10px rgb(0, 0, 0);
  ;
}

#viewport:hover {
  cursor: grab;
}

@keyframes bounce{
      0%{
          transform: translateX(-1000px);
      }
      20%,
      50%,
      80%,
      100%{
          transform: translateX(0);
      }
      40%{
          transform: translateX(-50px);
      }
      60%{
          transform: translateX(-25px);
      }
  }

  @keyframes bounces{
      0%{
          transform: translateX(1000px);
      }
      20%,
      50%,
      80%,
      100%{
          transform: translateX(0);
      }
      40%{
          transform: translateX(50px);
      }
      60%{
          transform: translateX(25px);
      }
  }

  @keyframes top{
      0%{
          transform: translateY(-1000px);
      }
      20%,
      50%,
      80%,
      100%{
          transform: translateY(0);
      }
      40%{
          transform: translateY(-50px);
      }
      60%{
          transform: translateY(-25px);
      }
  }

  #left {
      animation: bounce 3s ease;
  }

  #right{
    animation: bounces 3s ease;
  }

  #viewport{
    animation: top 3s ease;
  }

  .popup .overlay{
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1;
    display: none;
  }

  .popup .content{
    font-family:'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 480px;
    height: 380px;
    background: transparent;
    z-index: 2;
    text-align: center;
    padding: 20px 20px;
    box-sizing: border-box;
    border-radius: 5px;
    box-shadow: inset 0 0 10px #ffffff,
    0 0 15px #88eef7;
  }
  .popup .close-btn{
    cursor: pointer;
    position: absolute;
    top: 40px;
    right: 40px;
    width: 30px;
    height: 30px;
    background: #222;
    color: #fff;
    font-size: 25px;
    line-height: 30px;
    text-align: center;
    border-radius: 50%;
    font-weight: 600;

  }

  .popup .close-btn:hover{
    transform: translateY(-1px);
  }
   
   .popup.active .overlay{
      display: block;
   }

   .popup.active .content{
      transition: all 300ms ease-in-out;
      transform: translate(-50%, -50%) scale(1);
   }

   #btn{
    width: 80px;
    height: 40px;
    border-radius: 5vw;
    border: 2px solid rgb(0, 187, 255);
    font-size: 14px;
    color: #fff;
    position: absolute;
    background: #3361f7;
    cursor: pointer;
    margin: 10px 30px;
    top: 60%;
    left: 23%;
    box-shadow: inset 0 0 40px white,
          0 0 40px rgb(0, 229, 255);
          letter-spacing: 2px;
   }

   #btn::before {
      content: '';
      position: absolute;
      background: rgb(0, 229, 255);
      top: 120%;
      left: 0;
      width: 100%;
      height: 100%;
      transform: perspective(1em) rotateX(40deg) scale(1, 0.35);
      filter: blur(1.99em);
      
  }

  #btn:hover{
    background-color:white;
  transform: translate(0px, -1px);
  color: #000000;
  cursor: pointer;
  text-shadow: 0 0 1rem white,
    0 0 30px rgb(0, 238, 255);
    box-shadow: inset 0 0 1rem white,
    0 0 30px rgb(0, 238, 255);
  }

  #gr{
    width: 250px;
    height: 40px;
    font-size: 16px;
    color: #fff;
    position: absolute;
    cursor: pointer;
    text-shadow: 0 0 1rem #ffffff;
    margin: 10px 30px;
    top: 30%;
    left: 19%;
    letter-spacing: 2px;

  }
  #greet{
    width: 530px;
    height: 40px;
    font-size: 16px;
    color: #fff;
    position: absolute;
    cursor: pointer;

    margin: 10px 30px;
    top: 35%;
    left: 10%;
    letter-spacing: 2px;
    text-shadow: 0 0 1rem white;
  }

  @keyframes toptodown{
    0%{
      transform: translateY(0%);
    }
    10%{
      transform: translateY(80%);
    }
      50%{
        transform: translateY(100%);
      }
      80%{
        transform: translateY(20%);
      }
      100%{
        transform: translateY(50%);
      }
    }

    #gr{
      animation: toptodown 4s infinite;
    }

    #greet{
      animation: toptodown 4s infinite;
    }