fix: header sticky uses bg-background (paper color), sort label hardcoded fallback, border-b added

memento-note/components/home-client.tsx

@@ -361,7 +361,7 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
         <>
           <div className={cn(
             'px-12 pt-12 pb-8 flex flex-col gap-6',
-            isEditorialMode ? 'sticky top-0 bg-white/80 dark:bg-zinc-950/80 backdrop-blur-md z-30' : ''
+            isEditorialMode ? 'sticky top-0 bg-background/90 backdrop-blur-md z-30 border-b border-foreground/5' : ''
           )}>
             <div className="flex justify-between items-start">
               <h1 className="font-memento-serif text-4xl font-medium tracking-tight text-foreground leading-tight pr-12">
@@ -387,7 +387,9 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
                   title={t('sidebar.sortOrder') || 'Sort order'}
                 >
                   <ArrowUpDown size={14} />
-                  <span className="hidden sm:inline text-[11px] uppercase tracking-wider font-bold">{sortLabels[sortOrder]}</span>
+                  <span className="hidden sm:inline text-[11px] uppercase tracking-wider font-bold">
+                    {sortOrder === 'newest' ? 'Plus récentes' : sortOrder === 'oldest' ? 'Plus anciennes' : 'A → Z'}
+                  </span>
                 </button>
                 <AnimatePresence>
                   {showSortMenu && (