Textarea

@layer components.extended {
  /*
- Common styling for input, textarea and select
- Form related styles such as: label, supporting text, error handling
*/
  :where(.ui-text-field, .ui-textarea, .ui-select) {
    --_motion: var(--motion, 1);
    --_accent-color: var(--primary);
    --_bg-color: var(--surface-default);
    --_border-color: var(--field-border-color);
    --_field-padding-block: var(--size-2);
    --_field-padding-inline: var(--size-2);
    --_filled-border-color: var(--text-primary);
    --_height: var(--field-size);
    --_label-color: var(--text-muted);
    --_end-text-color: var(--text-muted);

    display: grid;
    gap: var(--size-1) 0;
    position: relative;

    /* Field - the actual input with a border around it */
    .ui-field {
      background-color: var(--_bg-color);
      border: var(--field-border-width) solid var(--_border-color);
      border-radius: var(--field-border-radius);
      display: grid;
      grid-column: 1/-1;
      grid-row: 2;
      grid-template-areas:
        "header header header"
        "prefix input  suffix"
        "footer footer footer";
      grid-template-columns: auto 1fr auto;
      min-block-size: var(--_height);

      transition: border-color calc(0.2s * var(--_motion))
        cubic-bezier(0.4, 0, 0.2, 1);
    }

    :where(.ui-field) :where(input, textarea, select) {
      background: transparent;
      border: 0;
      color: var(--text-primary);
      font-family: var(--font-sans);
      font-size: var(--font-size-1);
      grid-area: input;
      inline-size: 100%;
      line-height: var(--font-lineheight-1);
      min-inline-size: 0;
      padding: var(--_field-padding-block) var(--_field-padding-inline);

      &:focus,
      &:focus-visible {
        outline: 0;
      }
    }

    /* Affixes */
    .ui-prefix,
    .ui-suffix {
      align-items: center;
      color: var(--_label-color);
      display: inline-flex;
      padding-inline: var(--_field-padding-inline);
      white-space: nowrap;
    }

    .ui-prefix {
      grid-area: prefix;
    }

    .ui-suffix {
      grid-area: suffix;
    }

    .ui-header,
    .ui-footer {
      align-items: center;
      color: var(--_label-color);
      display: flex;
      font-size: var(--font-size-0);
      gap: var(--size-2);
      padding: var(--size-1) var(--_field-padding-inline);
    }

    .ui-header {
      border-block-end: 1px solid var(--_border-color);
      grid-area: header;
    }

    .ui-footer {
      border-block-start: 1px solid var(--_border-color);
      grid-area: footer;
    }

    /* Remove padding on the input when affixes are next to it */
    .ui-field:has(> .ui-prefix) :where(input, textarea, select) {
      padding-inline-start: 0;
    }

    .ui-field:has(> .ui-suffix) :where(input, textarea, select) {
      padding-inline-end: 0;
    }

    /* Textarea - keep affix aligned with the first line */
    &.ui-textarea .ui-field {
      .ui-prefix,
      .ui-suffix {
        align-self: start;
        padding-block: var(--_field-padding-block);
      }
    }

    /* Required/Invalid */
    &:has(:invalid) {
      .ui-label:after {
        color: var(--red);
        content: "*";
        margin: -0.25em auto auto 0.25em;
      }
    }

    /* File */
    &:has(input[type="file"]) {
      cursor: pointer;

      input {
        align-self: flex-start;
        block-size: var(--_height);
        box-shadow: none;
        color: var(--text-primary);
        cursor: inherit;
        max-inline-size: 100%;
        padding: 0;
        transition: font-size 0.2s var(--ease-3);

        &::-webkit-file-upload-button,
        &::file-selector-button {
          background-color: var(--surface-tonal);
          block-size: calc(100% - var(--size-2) * 2);
          border: none;
          border-radius: var(--field-border-radius);
          cursor: pointer;
          margin-block-start: var(--size-2);
          margin-inline-end: 1ex;
          margin-inline-start: var(--size-2);
        }
      }

      /* Variants */
      &.ui-filled {
        input {
          &::-webkit-file-upload-button,
          &::file-selector-button {
            background-color: var(--surface-default);
            block-size: calc(100% - var(--size-2) * 2);
            border-radius: var(--field-border-radius);
            cursor: pointer;
            margin-block-start: var(--size-2);
          }
        }
      }

      /* Sizes */
      &.ui-small {
        input {
          font-size: var(--font-size-05);

          &::-webkit-file-upload-button,
          &::file-selector-button {
            block-size: calc(100% - var(--size-2));
            margin-block-start: var(--size-1);
          }
        }
      }
    }

    /* Autosuggest */
    &:has(input[list]) {
      .ui-label {
        /* Make sure chevron is visible */
        inline-size: calc(100% - var(--size-6));
      }
    }

    /* Select */
    &:has(select) {
      .ui-label {
        /* Make sure chevron is visible */
        inline-size: calc(100% - var(--size-6));
      }
    }

    /* Customizable Select */
    &:has(select button) {
      select {
        padding: 0;

        button {
          outline: 0;
          padding: var(--_field-padding-block) var(--size-8)
            var(--_field-padding-block) var(--_field-padding-inline);
        }
      }
    }

    /* Non-customizable Select */
    &:has(select):not(:has(button)) {
      select {
        padding: var(--_field-padding-block) var(--size-8)
          var(--_field-padding-block) var(--_field-padding-inline);
      }
    }

    /* Input - color */
    &:has(input[type="color"]) {
      .ui-field {
        block-size: var(--_height);
        inline-size: var(--_height);
        min-block-size: 0;
        overflow: hidden;
      }

      input {
        appearance: none;
        background: none;
        block-size: var(--_height);
        inline-size: var(--_height);
        overflow: hidden;
        padding: 0;

        &::-webkit-color-swatch {
          border: none;
        }

        &::-webkit-color-swatch-wrapper {
          padding: 0;
        }
      }
    }

    /* Element states */
    &:hover {
      &:not([data-invalid]) {
        .ui-field {
          border-color: var(--text-primary);
        }
      }
    }

    &:focus-within {
      .ui-field {
        border-color: var(--_accent-color);
        outline-offset: -2px;
      }
    }

    /* Label */
    .ui-label {
      color: var(--text-primary);
      font-size: var(--font-size-05);
      font-weight: 600;
      grid-column: 1/-1;
      grid-row: 1;
      padding-inline: 0 1ex;
    }

    :where(.ui-start-text) {
      color: var(--_end-text-color);
      font-size: var(--font-size-0);
      grid-column: 1/-1;
      grid-row: 2;
      line-height: 1.5;
    }

    &:not(.ui-spread):has(> .ui-start-text) {
      .ui-field {
        grid-row: 3;
      }

      :where(.ui-end-text) {
        grid-row: 4;
      }
    }

    /* End text */
    :where(.ui-end-text) {
      color: var(--_end-text-color);
      font-size: var(--font-size-0);
      grid-column: 1/-1;
      grid-row: 3;
      line-height: 1.5;
    }

    /* Auto-fit */
    &.ui-auto-fit {
      inline-size: auto;

      .ui-field {
        inline-size: auto;
      }

      :where(& input, & textarea) {
        field-sizing: content;
        inline-size: auto;
        min-inline-size: 25ch;
      }
    }

    /* Validation */
    &[data-invalid],
    &:has(:user-invalid) {
      --_accent-color: var(--color-9);
      --_border-color: var(--color-9);
      --_filled-border-color: var(--color-9);
      --_label-color: var(--color-9);
      --_end-text-color: var(--color-9);
    }

    /*
  * Variant: Filled
  */
    &.ui-filled {
      --_bg-color: var(--surface-tonal);

      &:not(:has([disabled], :has(input[type="color"]))) {
        /* Hover */
        &:hover {
          --_bg-color: light-dark(
            oklch(from var(--surface-tonal) calc(l * 0.93) c h),
            oklch(from var(--surface-tonal) calc(l * 1.1) c h)
          );
        }
      }
    }

    /* Disabled */
    &:where(:has([disabled])) {
      cursor: not-allowed;
      opacity: 0.64;
      user-select: none;

      &::before {
        display: none;
      }

      .ui-field {
        cursor: not-allowed;
      }

      :where(input, textarea, select) {
        cursor: not-allowed;

        * {
          pointer-events: none;
        }
      }

      .ui-label,
      .ui-start-text,
      .ui-end-text {
        cursor: not-allowed;
      }
    }

    /* Read-only */
    &:where(:has([readonly])) {
      &::before {
        display: none;
      }

      :where(input, textarea, select) {
        cursor: not-allowed;

        * {
          pointer-events: none;
        }
      }
    }

    /* Sizes */
    &.ui-small {
      --_field-padding-block: var(--size-2);
      --_height: var(--field-size-small);

      &:has(input[type="color"]) {
        .ui-label {
          line-height: 1.5;
        }
      }
    }

    /* Orientation */
    &.ui-spread {
      align-items: start;
      column-gap: var(--size-4);
      container-type: inline-size;
      grid-template-columns: 1fr auto;

      .ui-label {
        font-weight: 600;
        grid-column: 1;
        grid-row: 1;
      }

      .ui-start-text {
        color: var(--_end-text-color);
        font-size: var(--font-size-0);
        grid-column: 1;
        grid-row: 2;
        line-height: 1.5;
      }

      .ui-field {
        align-self: start;
        grid-column: 2;
        grid-row: 1 / span 2;
      }

      .ui-field:has(textarea) {
        grid-row: 1 / span 3;

        + .ui-end-text {
          grid-row: 4;
        }
      }

      :where(textarea) {
        min-inline-size: 30ch;
      }

      :where(.ui-end-text) {
        grid-column: 2;
        text-align: end;
      }

      /* Collapse to column on narrow containers */
      @container (width < 400px) {
        column-gap: 0;
        grid-template-columns: 1fr;

        .ui-label {
          grid-column: 1;
          grid-row: 1;
        }

        .ui-start-text {
          grid-column: 1;
          grid-row: 2;
        }

        .ui-field,
        .ui-field:has(textarea) {
          grid-column: 1;
          grid-row: 3;
        }

        :where(.ui-end-text) {
          grid-column: 1;
          grid-row: 4;
          text-align: start;
        }
      }
    }
  }
}

@layer components.extended {
  :where(.ui-textarea) {
    textarea {
      block-size: auto;
      field-sizing: content;
      min-block-size: calc(
        var(--_field-padding-block) * 2 + (var(--border-width) * 2) + 3lh
      );
      resize: vertical;
    }

    /* Size */
    &.ui-small {
      textarea {
        min-block-size: var(--size-9);
      }
    }

    /* Auto-fit */
    &.ui-auto-fit {
      textarea {
        resize: both;
      }
    }
  }
}