opencode/packages/ui/src/components/icon-button.css

[data-component="icon-button"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 100%;
  text-decoration: none;
  user-select: none;
  aspect-ratio: 1;

  &:disabled {
    background-color: var(--icon-strong-disabled);
    color: var(--icon-invert-base);
    cursor: not-allowed;
  }

  &:focus {
    outline: none;
  }

  &[data-variant="primary"] {
    background-color: var(--icon-strong-base);

    [data-slot="icon"] {
      /* color: var(--icon-weak-base); */
      color: var(--icon-invert-base);

      /* &:hover:not(:disabled) { */
      /*   color: var(--icon-weak-hover); */
      /* } */
      /* &:active:not(:disabled) { */
      /*   color: var(--icon-string-active); */
      /* } */
    }

    &:hover:not(:disabled) {
      background-color: var(--icon-strong-hover);
    }
    &:active:not(:disabled) {
      background-color: var(--icon-string-active);
    }
    &:focus:not(:disabled) {
      background-color: var(--icon-strong-focus);
    }
    &:disabled {
      background-color: var(--icon-strong-disabled);

      [data-slot="icon"] {
        color: var(--icon-invert-base);
      }
    }
  }

  &[data-variant="secondary"] {
    background-color: var(--button-secondary-base);
    color: var(--text-strong);

    &:hover:not(:disabled) {
      background-color: var(--surface-hover);
    }
    &:active:not(:disabled) {
      background-color: var(--surface-active);
    }
    &:focus:not(:disabled) {
      background-color: var(--surface-focus);
    }
  }

  &[data-variant="ghost"] {
    background-color: transparent;

    [data-slot="icon"] {
      color: var(--icon-weak-base);

      &:hover:not(:disabled) {
        color: var(--icon-weak-hover);
      }
      &:active:not(:disabled) {
        color: var(--icon-string-active);
      }
    }

    /* color: var(--text-strong); */
    /**/
    /* &:hover:not(:disabled) { */
    /*   background-color: var(--surface-hover); */
    /* } */
    /* &:active:not(:disabled) { */
    /*   background-color: var(--surface-active); */
    /* } */
    /* &:focus:not(:disabled) { */
    /*   background-color: var(--surface-focus); */
    /* } */
  }

  &[data-size="normal"] {
    width: 24px;
    height: 24px;

    font-size: var(--font-size-small);
    line-height: var(--line-height-large);
    gap: calc(var(--spacing) * 0.5);
  }

  &[data-size="large"] {
    height: 32px;
    padding: 0 8px 0 6px;
    gap: 8px;

    /* text-12-medium */
    font-family: var(--font-family-sans);
    font-size: var(--font-size-small);
    font-style: normal;
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-large); /* 166.667% */
    letter-spacing: var(--letter-spacing-normal);
  }
}