feat(form): add ghost option variant

- Keep option buttons transparent by default and subtle on hover
- Use the ghost style for inactive auto-import filters so the active one stands out
- Keep OptionButton aligned with the existing button variant API

webui/src/components/form/form.module.css

@@ -420,7 +420,21 @@
     background: rgba(255, 255, 255, 0.08);
   }
 
+  &[data-variant='ghost'] {
+    border-color: transparent;
+    background: transparent;
+    color: rgba(255, 255, 255, 0.58);
+  }
+
+  &[data-variant='ghost']:hover:not(:disabled) {
+    transform: none;
+    border-color: rgba(255, 255, 255, 0.12);
+    background: rgba(255, 255, 255, 0.06);
+    color: rgba(255, 255, 255, 0.85);
+  }
+
   &[data-selected='true'] {
+    color: #fff;
     border-color: rgba(var(--accent-light-rgb), 0.5);
     background: rgba(var(--accent-rgb), 0.18);
     box-shadow: 0 0 0 1px rgba(var(--accent-light-rgb), 0.08);
@@ -598,7 +612,6 @@
   }
 
   &[data-variant='ghost']:hover:not(:disabled) {
-    transform: none;
     border-color: rgba(255, 255, 255, 0.14);
     background: rgba(255, 255, 255, 0.07);
     color: #fff;
@@ -610,7 +623,7 @@
   }
 
   &[data-variant='ghost']:disabled {
-    opacity: 0.5;
+    opacity: 0.55;
   }
 }
 

webui/src/components/form/form.test.tsx

@@ -172,21 +172,22 @@ describe('form primitives', () => {
 
     expect(screen.getByText('12')).toHaveAttribute('data-tone', 'warning');
     expect(screen.getByRole('button', { name: 'Cancel' })).toBeInTheDocument();
-    expect(screen.getByRole('button', { name: 'Save' })).toHaveAttribute(
-      'data-variant',
-      'primary',
-    );
+    expect(screen.getByRole('button', { name: 'Save' })).toHaveAttribute('data-variant', 'primary');
   });
 
   it('supports compact option button groups', () => {
     const { container } = render(
       <OptionButtonGroup size="sm">
         <OptionButton selected>All</OptionButton>
-        <OptionButton>Pending</OptionButton>
+        <OptionButton variant="ghost">Pending</OptionButton>
       </OptionButtonGroup>,
     );
 
     expect(container.querySelector('[data-size="sm"]')).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Pending' })).toHaveAttribute(
+      'data-variant',
+      'ghost',
+    );
   });
 
   it('supports compact select sizing', () => {

webui/src/components/form/form.tsx

@@ -89,12 +89,7 @@ export const Select = forwardRef<HTMLSelectElement, SelectProps>(function Select
   ref,
 ) {
   return (
-    <select
-      ref={ref}
-      className={clsx(styles.select, className)}
-      data-size={size}
-      {...props}
-    />
+    <select ref={ref} className={clsx(styles.select, className)} data-size={size} {...props} />
   );
 });
 
@@ -186,7 +181,10 @@ export const RangeInput = forwardRef<HTMLDivElement, RangeInputProps>(function R
       <Slider.Control className={styles.rangeControl}>
         <Slider.Track className={styles.rangeTrack}>
           <Slider.Indicator className={styles.rangeIndicator} />
-          <Slider.Thumb aria-label={typeof label === 'string' ? label : undefined} className={styles.rangeThumb} />
+          <Slider.Thumb
+            aria-label={typeof label === 'string' ? label : undefined}
+            className={styles.rangeThumb}
+          />
         </Slider.Track>
       </Slider.Control>
     </Slider.Root>
@@ -249,11 +247,7 @@ export interface OptionButtonGroupProps {
   size?: OptionButtonGroupSize;
 }
 
-export function OptionButtonGroup({
-  className,
-  children,
-  size = 'md',
-}: OptionButtonGroupProps) {
+export function OptionButtonGroup({ className, children, size = 'md' }: OptionButtonGroupProps) {
   return (
     <div className={clsx(styles.optionButtonGroup, className)} data-size={size}>
       {children}
@@ -261,14 +255,17 @@ export function OptionButtonGroup({
   );
 }
 
+export type OptionButtonVariant = 'default' | 'ghost';
+
 export interface OptionButtonProps extends Omit<ButtonHTMLAttributes<HTMLButtonElement>, 'value'> {
   className?: string;
   selected?: boolean;
+  variant?: OptionButtonVariant;
   value?: string;
 }
 
 export const OptionButton = forwardRef<HTMLButtonElement, OptionButtonProps>(function OptionButton(
-  { className, children, selected = false, type = 'button', ...props },
+  { className, children, selected = false, type = 'button', variant = 'default', ...props },
   ref,
 ) {
   return (
@@ -277,6 +274,7 @@ export const OptionButton = forwardRef<HTMLButtonElement, OptionButtonProps>(fun
       pressed={selected}
       className={clsx(styles.optionButton, className)}
       data-selected={selected ? 'true' : undefined}
+      data-variant={variant}
       type={type}
       {...props}
     >
@@ -298,14 +296,7 @@ export const Badge = forwardRef<HTMLSpanElement, BadgeProps>(function Badge(
   { className, tone = 'neutral', ...props },
   ref,
 ) {
-  return (
-    <span
-      ref={ref}
-      className={clsx(styles.badge, className)}
-      data-tone={tone}
-      {...props}
-    />
-  );
+  return <span ref={ref} className={clsx(styles.badge, className)} data-tone={tone} {...props} />;
 });
 
 type BaseButtonProps = ComponentPropsWithoutRef<typeof BaseButton>;

webui/src/routes/import/-ui/auto-import-tab.tsx

@@ -258,6 +258,7 @@ export function AutoImportPanel({
             <OptionButton
               key={filter}
               selected={autoFilter === filter}
+              variant={autoFilter === filter ? 'default' : 'ghost'}
               onClick={() => onFilterChange(filter)}
             >
               <span>{getAutoImportFilterLabel(filter)}</span>