@aws-amplify/ui/dist/styles/textField.css

`@aws-amplify/ui` contains low-level logic & styles for stand-alone usage or re-use in framework-specific implementations.

.amplify-textfield {
  --amplify-components-fieldcontrol-color: var(
    --amplify-components-textfield-color
  );
  --amplify-components-fieldcontrol-border-color: var(
    --amplify-components-textfield-border-color
  );
  --amplify-components-fieldcontrol-font-size: var(
    --amplify-components-textfield-font-size
  );
  --amplify-components-fieldcontrol-focus-border-color: var(
    --amplify-components-textfield-focus-border-color
  );
}