diff --git a/web/src/components/ui/select.stories.tsx b/web/src/components/ui/select.stories.tsx
new file mode 100644
index 0000000..c58dfe6
--- /dev/null
+++ b/web/src/components/ui/select.stories.tsx
@@ -0,0 +1,38 @@
+import type { Meta, StoryObj } from '@storybook/react-vite'
+import { useState } from 'react'
+import { expect, within } from 'storybook/test'
+
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from './select'
+
+function Controlled() {
+  const [value, setValue] = useState('')
+  return (
+    <Select value={value} onValueChange={(next) => setValue(next ?? '')}>
+      <SelectTrigger aria-label="Fruit">
+        <SelectValue placeholder="Pick one" />
+      </SelectTrigger>
+      <SelectContent>
+        <SelectItem value="apple">Apple</SelectItem>
+        <SelectItem value="pear">Pear</SelectItem>
+        <SelectItem value="plum">Plum</SelectItem>
+      </SelectContent>
+    </Select>
+  )
+}
+
+const meta = {
+  component: Select,
+  tags: ['ai-generated'],
+  render: () => <Controlled />,
+} satisfies Meta<typeof Select>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+export const Default: Story = {
+  play: async ({ canvas, userEvent }) => {
+    await userEvent.click(canvas.getByRole('combobox', { name: 'Fruit' }))
+    await userEvent.click(await within(document.body).findByRole('option', { name: 'Pear' }))
+    await expect(canvas.getByRole('combobox', { name: 'Fruit' })).toHaveTextContent('Pear')
+  },
+}
diff --git a/web/src/components/ui/select.tsx b/web/src/components/ui/select.tsx
new file mode 100644
index 0000000..6d5ccfb
--- /dev/null
+++ b/web/src/components/ui/select.tsx
@@ -0,0 +1,132 @@
+import * as React from "react"
+import { Select as SelectPrimitive } from "@base-ui/react/select"
+import { Check, ChevronDown } from "lucide-react"
+
+import { cn } from "@/lib/utils"
+
+// Base UI's <Select.Value> resolves the selected item's *label* from the
+// Root `items` prop only; without it the trigger shows the raw value. We
+// derive that map from the rendered <SelectItem> children so consumers keep
+// the simple `<SelectItem value="…">Label</SelectItem>` API and still get
+// labels (not raw values) in the trigger.
+function collectItems(
+  node: React.ReactNode,
+  out: Array<{ value: unknown; label: React.ReactNode }>
+) {
+  React.Children.forEach(node, (child) => {
+    if (!React.isValidElement(child)) {
+      return
+    }
+
+    if (child.type === SelectItem) {
+      const props = child.props as SelectPrimitive.Item.Props
+
+      out.push({ value: props.value, label: props.children })
+
+      return
+    }
+
+    const props = child.props as { children?: React.ReactNode }
+
+    if (props.children != null) {
+      collectItems(props.children, out)
+    }
+  })
+}
+
+function Select<Value>({ children, ...props }: SelectPrimitive.Root.Props<Value>) {
+  const items = React.useMemo(() => {
+    const collected: Array<{ value: unknown; label: React.ReactNode }> = []
+
+    collectItems(children, collected)
+
+    return collected
+  }, [children])
+
+  return (
+    <SelectPrimitive.Root data-slot="select" items={items} {...props}>
+      {children}
+    </SelectPrimitive.Root>
+  )
+}
+
+function SelectTrigger({ className, children, ...props }: SelectPrimitive.Trigger.Props) {
+  return (
+    <SelectPrimitive.Trigger
+      data-slot="select-trigger"
+      className={cn(
+        "flex h-8 w-full min-w-0 items-center justify-between gap-2 rounded-lg border border-input bg-transparent px-2.5 py-1 text-sm transition-colors outline-none",
+        "focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50",
+        "disabled:pointer-events-none disabled:cursor-not-allowed disabled:bg-input/50 disabled:opacity-50",
+        "aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20",
+        "dark:bg-input/30 data-[popup-open]:border-ring",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <SelectPrimitive.Icon className="text-muted-foreground">
+        <ChevronDown className="h-4 w-4" aria-hidden />
+      </SelectPrimitive.Icon>
+    </SelectPrimitive.Trigger>
+  )
+}
+
+function SelectValue({ className, ...props }: SelectPrimitive.Value.Props) {
+  return (
+    <SelectPrimitive.Value
+      data-slot="select-value"
+      className={cn("truncate", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectContent({
+  className,
+  sideOffset = 6,
+  ...props
+}: SelectPrimitive.Popup.Props & {
+  sideOffset?: SelectPrimitive.Positioner.Props["sideOffset"]
+}) {
+  return (
+    <SelectPrimitive.Portal>
+      <SelectPrimitive.Positioner
+        sideOffset={sideOffset}
+        className="z-50"
+        alignItemWithTrigger={false}
+      >
+        <SelectPrimitive.Popup
+          data-slot="select-content"
+          className={cn(
+            "max-h-[min(24rem,var(--available-height))] min-w-[var(--anchor-width)] overflow-y-auto rounded-md border bg-popover p-1 text-popover-foreground shadow-md outline-none",
+            "data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+            className
+          )}
+          {...props}
+        />
+      </SelectPrimitive.Positioner>
+    </SelectPrimitive.Portal>
+  )
+}
+
+function SelectItem({ className, children, ...props }: SelectPrimitive.Item.Props) {
+  return (
+    <SelectPrimitive.Item
+      data-slot="select-item"
+      className={cn(
+        "flex cursor-default items-center justify-between gap-2 rounded-sm px-2 py-1.5 text-sm outline-none select-none",
+        "data-[highlighted]:bg-accent data-[highlighted]:text-accent-foreground",
+        className
+      )}
+      {...props}
+    >
+      <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+      <SelectPrimitive.ItemIndicator>
+        <Check className="h-4 w-4" aria-hidden />
+      </SelectPrimitive.ItemIndicator>
+    </SelectPrimitive.Item>
+  )
+}
+
+export { Select, SelectTrigger, SelectValue, SelectContent, SelectItem }