feat: improved ToC highlighting

src/components/ui/card.tsx

@@ -7,7 +7,7 @@ const Card = React.forwardRef<
 >(({ className, ...props }, ref) => (
   <div
     ref={ref}
-    className={cn('bg-background rounded-xl border', className)}
+    className={cn('rounded-xl border bg-background', className)}
     {...props}
   />
 ))

src/components/ui/mode-toggle.tsx

@@ -23,13 +23,15 @@ export function ModeToggle() {
       theme === 'dark' ||
       (theme === 'system' &&
         window.matchMedia('(prefers-color-scheme: dark)').matches)
-    
+
     document.documentElement.classList.add('disable-transitions')
 
     document.documentElement.classList[isDark ? 'add' : 'remove']('dark')
-    
-    window.getComputedStyle(document.documentElement).getPropertyValue('opacity')
-    
+
+    window
+      .getComputedStyle(document.documentElement)
+      .getPropertyValue('opacity')
+
     requestAnimationFrame(() => {
       document.documentElement.classList.remove('disable-transitions')
     })
@@ -65,4 +67,4 @@ export function ModeToggle() {
       </DropdownMenuContent>
     </DropdownMenu>
   )
-}
+}