keycloak-theme/common/resources/scss/input.scss

.ps-input {
  padding: 0.5rem 0.5rem;
  border: 2px solid var(--foreground-light);
  font-size: 1.2rem;

  &:hover,
  &:focus {
    border-color: var(--accent);
  }

  &:focus {
    color: var(--background);
    background-color: var(--foreground);
  }

  &:disabled {
    background-color: var(--background-alt-2);

    &:hover {
      border-color: var(--foreground-light);
    }
  }
}