fix(a11y): give the marquee drift a control and name the landmarks

docs/01-standards/accessibility.md

@@ -5,3 +5,5 @@ The floor, not a cleanup pass.
 1. **WCAG 2.0 AA (AODA) is the baseline:** semantic landmarks (`header`/`main`/`footer`/`nav`/`section`), one `h1` per page, accordion and nav keyboard-operable with correct ARIA, focus trapped in the nav overlay while open, visible `ring` focus states, decorative art `aria-hidden`.
 2. **Respect `prefers-reduced-motion`**: ambient and entrance animations pause or reduce; every motion moment has a static equivalent, and nothing is readable only through motion.
 3. **Contrast is checked in every theme scope**: AA contrast for text tokens (`muted-foreground` on `background` included) in the base theme and inside any inverse-color section.
+4. **Self-starting motion carries a control**: anything that begins moving on its own and runs past a few seconds (the marquee drift) pairs with a keyboard-operable pause. A hover pause is not one: it reaches neither keyboard nor touch, and the reduced-motion path only serves the readers who set the preference.
+5. **Each landmark of a kind is named**: a page with more than one `nav` labels each (`Primary`, `Footer`, `Menu`), since an unnamed pair is indistinguishable to the reader listing them. The name is passed at the call site, never baked into the component.

src/app/design/page.tsx

@@ -515,11 +515,11 @@ const DesignPage = () => {
             </div>
             <div className="border-t pt-8">
               <p className="text-e4 font-expressive text-muted-foreground mb-4 uppercase">Nav</p>
-              <Nav entries={headerEntries} />
+              <Nav aria-label="Nav specimen" entries={headerEntries} />
             </div>
             <div className="border-t pt-8">
               <p className="text-e4 font-expressive text-muted-foreground mb-4 uppercase">Menu</p>
-              <Menu entries={headerEntries} />
+              <Menu aria-label="Menu specimen" entries={headerEntries} />
             </div>
             <div className="border-t pt-8">
               <p className="text-e4 font-expressive text-muted-foreground mb-4 uppercase">Emblem</p>

src/components/atoms/marquee.tsx

@@ -1,45 +1,87 @@
-import { forwardRef, type HTMLAttributes } from 'react'
+'use client'
+
+import { forwardRef, useState, type HTMLAttributes } from 'react'
+import { PauseIcon, PlayIcon } from 'lucide-react'
+import { Button } from '@/components/atoms/button'
+import { Icon } from '@/components/atoms/icon'
 import { cn, cva, type VariantProps } from '@/utils/theme'
 
 const styles = {
-  // the drift is the only thing bringing offscreen entries into view, so under reduced
-  // motion the row hands that job to the reader as a plain scroller
-  root: cva([
+  root: cva('relative w-full'),
+  viewport: cva([
     'w-full overflow-hidden',
     'motion-reduce:overflow-x-auto motion-reduce:overscroll-x-contain'
   ]),
-  track: cva(['animate-marquee flex w-max', 'hover:paused', 'motion-reduce:animate-none'], {
-    variants: {
-      direction: {
-        left: '',
-        right: 'direction-reverse'
+  track: cva(
+    [
+      'animate-marquee flex w-max',
+      'hover:paused data-[paused=true]:paused',
+      'motion-reduce:animate-none'
+    ],
+    {
+      variants: {
+        direction: {
+          left: '',
+          right: 'direction-reverse'
+        }
+      },
+      defaultVariants: {
+        direction: 'left'
       }
-    },
-    defaultVariants: {
-      direction: 'left'
     }
-  }),
+  ),
   group: cva('flex shrink-0 items-stretch gap-8 pr-8'),
-  // the duplicate exists only to hide the loop's seam; scrolling it would just repeat
-  duplicate: cva('motion-reduce:hidden')
+  duplicate: cva('motion-reduce:hidden'),
+  control: cva(['absolute top-4 right-4 z-10', 'text-muted-foreground', 'motion-reduce:hidden'])
 }
 
 type MarqueeRef = HTMLDivElement
-type MarqueeProps = HTMLAttributes<MarqueeRef> & VariantProps<typeof styles.track>
+type MarqueeProps = HTMLAttributes<MarqueeRef> &
+  VariantProps<typeof styles.track> & {
+    /** Accessible label for the control that stops the drift. */
+    pauseLabel?: string
+    /** Accessible label for the control once the drift is stopped. */
+    resumeLabel?: string
+  }
 
 const Marquee = forwardRef<MarqueeRef, MarqueeProps>((props, ref) => {
   // props
-  const { direction, children, className, ...rest } = props
+  const {
+    direction,
+    pauseLabel = 'Pause scrolling',
+    resumeLabel = 'Resume scrolling',
+    children,
+    className,
+    ...rest
+  } = props
+
+  // hooks
+  const [paused, setPaused] = useState(false)
+
+  // render vars
+  const handleToggle = () => setPaused((prev) => !prev)
 
   // jsx
   return (
     <div ref={ref} className={cn(styles.root({ className }))} {...rest}>
-      <div className={cn(styles.track({ direction }))}>
-        <div className={cn(styles.group())}>{children}</div>
-        <div className={cn(styles.group(), styles.duplicate())} aria-hidden>
-          {children}
+      <div className={cn(styles.viewport())}>
+        <div className={cn(styles.track({ direction }))} data-paused={paused}>
+          <div className={cn(styles.group())}>{children}</div>
+          <div className={cn(styles.group(), styles.duplicate())} aria-hidden>
+            {children}
+          </div>
         </div>
       </div>
+      <Button
+        type="button"
+        className={cn(styles.control())}
+        aria-label={paused ? resumeLabel : pauseLabel}
+        size="icon-sm"
+        variant="ghost"
+        onClick={handleToggle}
+      >
+        <Icon icon={paused ? PlayIcon : PauseIcon} />
+      </Button>
     </div>
   )
 })

src/components/organisms/global-menu.tsx

@@ -67,7 +67,7 @@ const GlobalMenu = (props: GlobalMenuProps) => {
           </DrawerClose>
         </DrawerHeader>
         <div className={cn(styles.body())}>
-          <Menu entries={entries} onNavigate={handleNavigate} />
+          <Menu aria-label="Menu" entries={entries} onNavigate={handleNavigate} />
         </div>
         <div className={cn(styles.footer())}>
           <p>{'// Menu //'}</p>

src/components/templates/footer.tsx

@@ -48,7 +48,7 @@ const Footer: FC<FooterProps> = (props) => {
         <div className={cn(styles.bar({ variant }))}>
           <div className={cn(styles.left())}>© Tony Ko {year}</div>
           <div className={cn(styles.right())}>
-            <Nav entries={footerEntries} />
+            <Nav aria-label="Footer" entries={footerEntries} />
           </div>
         </div>
       </div>

src/components/templates/header.tsx

@@ -60,7 +60,7 @@ const Header: FC<HeaderProps> = (props) => {
             <Identity {...identityProps} />
           </div>
           <div className={cn(styles.right())}>
-            <Nav className={cn(styles.nav())} entries={headerEntries} />
+            <Nav className={cn(styles.nav())} aria-label="Primary" entries={headerEntries} />
             <GlobalMenu entries={headerEntries} identityProps={identityProps}>
               <Button className={cn(styles.trigger())} variant="link">
                 <Icon icon={MenuIcon} size="sm" />