* {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
   font-family: -applesystem, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
      Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

:root {
   --darkB: #3a3a3a;
   --lightBlue: #5e7d90;
   --darkBlue: #102e41;
   --white: #ffffff;
}


html,
body {
   height: 100vh;
   overflow: hidden;
   width: 100vw;
}

#threejs-container {
   position: absolute;
   width: 100%;
   height: 100%;
}

button {
   left: 20%;
   top: 80%;
   margin-left: 2%;
   position: relative;
   background-color: var(--lightBlue);
   color: white;
   border: 1px solid var(--darkB);
   border-radius: 16px;
   border-width: 0 0 4px;
   font-size: large;
   padding: 0.5rem;
   z-index: 999;
}

button:hover {
   border-color: #000;
}

button.active {
   background-color: var(--darkBlue);
   padding: 0.9rem;
}

button.active:hover {
   border: 1px solid var(--darkB);
   border-radius: 16px;
   border-width: 0 0 4px;
}


.ghBtn {
   -webkit-appearance: button;
   -moz-appearance: button;
   appearance: button;
   position: relative;
   z-index: 999;
   text-decoration: none;
   background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='currentColor' class='bi bi-github' viewBox='0 0 16 16'> <path d='M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.012 8.012 0 0 0 16 8c0-4.42-3.58-8-8-8z'/> </svg>");
   width: 25px;
   height: 25px;
   left: 2%;
   top: 2%;
   border: 1px solid white;
   border-radius: 25px;
   background-color: #ffffff;
   background-repeat: no-repeat;
   background-size: cover;
}

.ghBtn:hover {
   background-color: var(--lightBlue);
   border-color: var(--darkBlue);
}