.container {
  min-width: 400px;
  max-width: 50%;
  margin: auto;
  padding: 3rem;
  background: rgba(50, 50, 50, 0.4);
  border-radius: 5px;
}

.button {
  background: var(--primary-color);

  &:hover,
  &:active,
  &:focus {
    background: var(--primary-color);
    filter: brightness(1.1);
  }
}