* {
  margin: 0;
  padding: 0;
  }
  
  body {
  color: #E4E4E4;
  background: linear-gradient(101.56deg, #2C2C2C 1.56%, #1C1C1C 95.55%);
  overflow-y: hidden;
  overflow-x: hidden;
  height: 1000px;
  }
  video{
  display: none;
  }

  #start {
    width: 250px;
  }
  #header {
  text-align: center;
  font-size: 20px;
  width: 100%;
  font-family: DejaVu Sans Mono, monospace;
  font-weight: bold;
  box-shadow: 0 7px 37px -5px #00C4F0;
  }
  
  #info {
  text-align: left;
  font-family: NEXT ART;
  margin-left: 50px;
  line-height: 54px;
  font-weight: 600;
  margin-top: 30%;
  font-size: 65px;
  }
  
  #team {
  text-align: left;
  font-family: NEXT ART;
  margin-left: 50px;
  margin-top: 30px;
  font-size: 20px;
  }
  
  #main {
  width: 100%;
  }
  
  #text {
  width: 40%;
  float: left;
  }
  
  #photo {
  width: 60%;
  float: right;
  display: flex;
  }
  
  #logo {
  margin-left: -10px;
  height: 450px;
  margin-top: 10%;
  }
  
  .algoritm {
  width: 5%;
  height: 90px;
  display: table-cell;
  vertical-align: middle;
  text-align: center;
  }
  
  .wrapper {
  margin-top: 5px;
  display: grid;
  grid-template-columns: 2fr 5fr;
  }
  
  .toolbar {
  display: block;
  margin-left: auto;
  margin-right: auto;
  outline: none;
  }
  
  .button-wrapper {
  margin-top: 180px;
  outline: none;
  }
  
  .task3-button {
  position: relative;
  
  text-decoration: none;
  text-transform: uppercase;
  padding: 10px 25px;
  letter-spacing: 3px;
  font-size: 22px;
  color: #00C4F0;
  overflow: hidden;
  transition: 0.2s;
  font-family: DejaVu Sans Mono, monospace;
  margin: 20px auto 20px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  
  }
  
  .button__line{
  position: absolute;
  display: block;
  }
  
  .button__line--top{
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg,transparent,#2196f3);
  
  }
  
  .task3-button:hover .button__line--top{
  left: 100%;
  transition: 1s;
  transition-delay: 0.25s;
  }
  
  .button__line--bottom{
  bottom: 0;
  right: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(270deg,transparent,#2196f3);
  
  }
  
  .task3-button:hover .button__line--bottom{
  right: 100%;
  transition: 1s;
  transition-delay: 0.25s;
  }
  
  .button__line--right{
  right: 0;
  top: -100%;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg,transparent,#2196f3);
  
  }

  .task3-button:hover .button__line--right{
  top: 100%;
  transition: 1s;
  transition-delay: 0s;
  }
  
  .button__line--left{
  left: 0;
  bottom: -100%;
  width: 2px;
  height: 100%;
  background: linear-gradient(360deg,transparent,#2196f3);
  
  }
  
  .task3-button:hover .button__line--left{
  bottom: 100%;
  transition: 1s;
  transition-delay: 0s;
  }
  
  .task3-button:hover{
  box-shadow: 0 0 10px #00C4F0;
  background-color: #00C4F0;
  color: #2C2C2C;
  transition: 1s;
  transition-delay: 0.5s;
  cursor: pointer;
  }