@media(prefers-color-scheme: dark) {
  main {
    background-color:#121212;
    color:#ffffff;
  }
  .heading {
    color:#ffffff;
  }
  .stock-list {
    background-color:#000000;
  } 
  .stock {
    color:#000000:
  }
  .not-login-wrapper h2, .not-login-wrapper a {
    color:#ffffff;
  }
  .stock-id-input {
    color: #f1f1f1;
    outline: none;
    background-color:#2f2f2f; 
  }
}