body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0d1117;
  color: #c9d1d9;
  display: flex;
  flex-direction: row;
  height: 100vh;
  overflow: hidden;
}

.sidebar, .log {
  background: #161b22;
  width: 250px;
  padding: 20px;
  box-sizing: border-box;
  overflow-y: auto;
}

.main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

canvas#scene {
  width: 100%;
  height: 100%;
  display: block;
}

/* Mobilansicht */
@media (max-width: 768px) {
  body {
    flex-direction: column;
  }

  .sidebar, .log {
    width: 100%;
    height: auto;
  }

  .main {
    flex: none;
    height: 60vh;
  }
}