core/themes/claro/css/components/form--text.pcss.css
/**
 * @file
 * Text and textarea input elements.
 */

.form-element {
  box-sizing: border-box;
  max-width: 100%;
  min-height: calc(((var(--input-padding-vertical) + var(--input-border-size)) * 2) + var(--input-line-height)); /* iOS. */
  padding: var(--input-padding-vertical) var(--input-padding-horizontal);
  color: var(--input-fg-color);
  border: var(--input-border-size) solid var(--input-border-color);
  border-radius: var(--input-border-radius-size);
  background: var(--input-bg-color);
  font-size: var(--input-font-size);
  line-height: var(--input-line-height);
  appearance: none; /* Being able to control inner box shadow on iOS. */
}

.no-touchevents .form-element--extrasmall,
.no-touchevents .form-element[name$="][_weight]"] {
  min-height: calc(((var(--input--extrasmall-padding-vertical) + var(--input-border-size)) * 2) + var(--input--extrasmall-line-height)); /* iOS. */
  padding: var(--input--extrasmall-padding-vertical) var(--input--extrasmall-padding-horizontal);
  font-size: var(--input--extrasmall-font-size);
  line-height: var(--input--extrasmall-line-height);
}

/**
 * Override normalize.css's search appearance.
 */
.form-element--type-search[type="search"] {
  appearance: none;
  box-sizing: border-box;
}

/**
 * Fix minor things for specific types.
 */
.form-element--type-date,
.form-element--type-time {
  /* stylelint-disable-next-line declaration-property-value-no-unknown */
  vertical-align: -webkit-baseline-middle; /* Prevent iOS input jump while filling. */
}
.form-element--type-date {
  min-width: 9.5rem; /* Prevent input width change while filling. */
}
.form-element--type-time {
  min-width: 7.5rem; /* Prevent input width change while filling. */
}

.form-element--type-color {
  min-width: 3rem; /* Bigger input for webkit */
  padding: 0; /* Bigger pickable area */
  text-indent: calc(0.75rem - var(--input-border-size)); /* Text-input fallback for non-supporting browsers like Safari */
}

/**
 * Better upload button alignment for Chrome.
 */
.form-element--type-file::-webkit-file-upload-button {
  vertical-align: top;
}

/**
 * States.
 */
.form-element:active {
  border-color: var(--input--focus-border-color);
}
.form-element:hover {
  border-color: var(--input--hover-border-color);
  box-shadow: inset 0 0 0 var(--input-border-size) var(--input--hover-border-color);
}
.form-element:focus {
  box-shadow:
    0 0 0 2px var(--color-white),
    0 0 0 5px var(--color-focus);
}
.form-element:hover:focus {
  box-shadow:
    0 0 0 2px var(--color-white),
    0 0 0 5px var(--color-focus),
    inset 0 0 0 var(--input-border-size) var(--input--hover-border-color);
}

.form-element.error {
  border-width: var(--input--error-border-size);
  border-color: var(--input--error-border-color);
}
.form-element.error:hover {
  box-shadow: none;
}
.form-element.error:hover:focus {
  box-shadow:
    0 0 0 2px var(--color-white),
    0 0 0 5px var(--color-focus);
}
.form-element--type-textarea.error + .cke {
  border-color: var(--input--error-border-color);
}

.form-element[disabled] {
  color: var(--input--disabled-fg-color);
  border-color: var(--input--disabled-border-color);
  background-color: var(--input--disabled-bg-color);
  box-shadow: none;
  /* https://stackoverflow.com/q/262158#answer-23511280 */
  -webkit-text-fill-color: var(--input--disabled-fg-color);
}

/**
 * Improve form element usability on narrow devices.
 */
@media screen and (max-width: 600px) {
  /* Number, date and time are skipped here */
  .form-element {
    float: none;
    width: 100%;
    margin-block-start: 0.75rem;
    margin-inline: 0;
  }
  .form-element:first-child,
  .form-item__label + .form-element {
    margin-block-start: 0;
  }
}

.form-element--type-textarea.error + .ck-editor > .ck-editor__main {
  border: var(--input--error-border-size) solid var(--input--error-border-color);
}
