body {
  background-color: transparent !important;
  margin: 0;
  color: #f0f0f0;
}

.window-shell {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  padding: 15px;
}

.opaque-bg {
  background-color: #212121;
}

.rounded-container {
  background-color: #212121;
  border-radius: 15px;
}