ti-account-app/static/style.css

@media (max-width: 991.98px) {
  #userNameRow,
  #firstNameRow {
    margin-bottom: 20px;
  }

  #passwordButton {
    margin-bottom: 50px;
  }
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: #111 !important;
    color: #eee;
  }

  .jumbotron {
    background-color: #333 !important;
  }

  .modal-content {
    background-color: #111 !important;
    color: #eee;
  }

  .modal-header {
    border-bottom: 1px solid #555 !important;
  }

  .modal-header .close {
    color: #eee !important;
    text-shadow: 0 1px 0 #555 !important;
  }

  .modal-footer {
    border-top: 1px solid #555 !important;
  }

  .bg-light {
    background-color: #333 !important;
  }

  .bg-white {
    background-color: #000 !important;
  }

  .bg-black {
    background-color: #eee !important;
  }

  .form-control {
    display: block;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #dee2e6;
    background-color: #000;
    background-clip: padding-box;
    border: 1px solid #6c757d;
    border-radius: 0.25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  }

  @media (prefers-reduced-motion: reduce) {
    .form-control {
      transition: none;
    }
  }

  .form-control::-ms-expand {
    background-color: transparent;
    border: 0;
  }

  .form-control:-moz-focusring {
    color: transparent;
    text-shadow: 0 0 0 #dee2e6;
  }

  .form-control:focus {
    color: #dee2e6;
    background-color: #191d21;
    border-color: #b3d7ff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
  }

  .form-control::-webkit-input-placeholder {
    color: #6c757d;
    opacity: 1;
  }

  .form-control::-moz-placeholder {
    color: #6c757d;
    opacity: 1;
  }

  .form-control::-ms-input-placeholder {
    color: #6c757d;
    opacity: 1;
  }

  .form-control::placeholder {
    color: #6c757d;
    opacity: 1;
  }

  .form-control:disabled,
  .form-control[readonly] {
    background-color: #343a40;
    opacity: 1;
  }
}