@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

body {
  margin: 0;
  padding: 0;
  background-color: #3C3C3C;
  overflow: hidden;
}

canvas {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

#loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #3C3C3C;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s, visibility 0.5s;
}

#loading::before {
  content: '';
  width: 5vw;
  height: 5vw;
  border: 0.5vw solid #BD432F;
  border-top-color: #DBB448;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}