feat: add keyboard shortcuts button and show/hide toolbar labels option

- Implemented a keyboard shortcuts button in the navigation rail.
- Added a setting to toggle the visibility of toolbar labels in appearance settings.
- Updated the email context menu to streamline actions for archiving, deleting, and marking emails as read/unread.
- Enhanced the email viewer with improved spam handling and read state toggling.
- Updated localization files to include new strings for keyboard shortcuts and toolbar labels.

app/[locale]/page.tsx

@@ -941,6 +941,7 @@ export default function Home() {
               quota={quota}
               isPushConnected={isPushConnected}
               onLogout={handleLogout}
+              onShowShortcuts={() => setShowShortcutsModal(true)}
             />
           </div>
         )}

components/email/email-context-menu.tsx

@@ -213,28 +213,24 @@ export function EmailContextMenu({
         </>
       )}
 
-      {/* Mark as read/unread */}
+      {/* Archive */}
       <ContextMenuItem
-        icon={isUnread ? MailOpen : Mail}
+        icon={Archive}
-        label={isUnread ? t("mark_read") : t("mark_unread")}
+        label={t("archive")}
-        onClick={() =>
+        onClick={() => handleAction(onArchive!)}
-          handleAction(() =>
+        disabled={!onArchive}
-            showBatchActions
-              ? onBatchMarkAsRead?.(isUnread)
-              : onMarkAsRead?.(isUnread)
-          )
-        }
       />
 
-      {/* Star/Unstar - only for single email */}
+      {/* Delete */}
-      {!showBatchActions && (
+      <ContextMenuItem
-        <ContextMenuItem
+        icon={Trash2}
-          icon={Star}
+        label={t("delete")}
-          label={isStarred ? t("unstar") : t("star")}
+        onClick={() =>
-          onClick={() => handleAction(onToggleStar!)}
+          handleAction(showBatchActions ? onBatchDelete! : onDelete!)
-          disabled={!onToggleStar}
+        }
-        />
+        disabled={showBatchActions ? !onBatchDelete : !onDelete}
-      )}
+        destructive
+      />
 
       <ContextMenuSeparator />
 
@@ -280,32 +276,15 @@ export function EmailContextMenu({
         </ContextMenuSubMenu>
       )}
 
-      {/* Archive */}
+      {/* Star/Unstar - only for single email */}
-      <ContextMenuItem
+      {!showBatchActions && (
-        icon={Archive}
+        <ContextMenuItem
-        label={t("archive")}
+          icon={Star}
-        onClick={() => handleAction(onArchive!)}
+          label={isStarred ? t("unstar") : t("star")}
-        disabled={!onArchive}
+          onClick={() => handleAction(onToggleStar!)}
-      />
+          disabled={!onToggleStar}
-
+        />
-      <ContextMenuSeparator />
+      )}
-
-      {/* Spam - contextual based on folder */}
-      <ContextMenuItem
-        icon={isInJunkFolder ? ShieldCheck : ShieldAlert}
-        label={isInJunkFolder ? t("not_spam") : t("mark_as_spam")}
-        onClick={() =>
-          handleAction(
-            showBatchActions
-              ? (isInJunkFolder ? onBatchUndoSpam! : onBatchMarkAsSpam!)
-              : (isInJunkFolder ? onUndoSpam! : onMarkAsSpam!)
-          )
-        }
-        disabled={showBatchActions ? (isInJunkFolder ? !onBatchUndoSpam : !onBatchMarkAsSpam) : (isInJunkFolder ? !onUndoSpam : !onMarkAsSpam)}
-        destructive={!isInJunkFolder}
-      />
-
-      <ContextMenuSeparator />
 
       {/* Set tag submenu - only for single email */}
       {!showBatchActions && (
@@ -342,15 +321,34 @@ export function EmailContextMenu({
 
       <ContextMenuSeparator />
 
-      {/* Delete */}
+      {/* Spam - contextual based on folder */}
       <ContextMenuItem
-        icon={Trash2}
+        icon={isInJunkFolder ? ShieldCheck : ShieldAlert}
-        label={t("delete")}
+        label={isInJunkFolder ? t("not_spam") : t("mark_as_spam")}
         onClick={() =>
-          handleAction(showBatchActions ? onBatchDelete! : onDelete!)
+          handleAction(
+            showBatchActions
+              ? (isInJunkFolder ? onBatchUndoSpam! : onBatchMarkAsSpam!)
+              : (isInJunkFolder ? onUndoSpam! : onMarkAsSpam!)
+          )
+        }
+        disabled={showBatchActions ? (isInJunkFolder ? !onBatchUndoSpam : !onBatchMarkAsSpam) : (isInJunkFolder ? !onUndoSpam : !onMarkAsSpam)}
+        destructive={!isInJunkFolder}
+      />
+
+      <ContextMenuSeparator />
+
+      {/* Mark as read/unread */}
+      <ContextMenuItem
+        icon={isUnread ? MailOpen : Mail}
+        label={isUnread ? t("mark_read") : t("mark_unread")}
+        onClick={() =>
+          handleAction(() =>
+            showBatchActions
+              ? onBatchMarkAsRead?.(isUnread)
+              : onMarkAsRead?.(isUnread)
+          )
         }
-        disabled={showBatchActions ? !onBatchDelete : !onDelete}
-        destructive
       />
     </ContextMenu>
   );

components/email/email-viewer.tsx

@@ -23,6 +23,7 @@ import {
   ChevronRight,
   Download,
   Mail,
+  MailOpen,
   Clock,
   Loader2,
   Printer,
@@ -487,6 +488,7 @@ export function EmailViewer({
   const isSenderTrusted = useSettingsStore((state) => state.isSenderTrusted);
   const emailKeywords = useSettingsStore((state) => state.emailKeywords);
   const toolbarPosition = useSettingsStore((state) => state.toolbarPosition);
+  const showToolbarLabels = useSettingsStore((state) => state.showToolbarLabels);
 
   // Detect if current mailbox is Junk folder
   const isInJunkFolder = currentMailboxRole === 'junk';
@@ -1205,6 +1207,7 @@ export function EmailViewer({
 
   const sender = email.from?.[0];
   const isStarred = email.keywords?.$flagged;
+  const isUnread = !email.keywords?.$seen;
   const isImportant = email.keywords?.["$important"];
 
   return (
@@ -1240,19 +1243,6 @@ export function EmailViewer({
             <Archive className="w-5 h-5" />
             {t('archive')}
           </button>
-          {(onMarkAsSpam || onUndoSpam) && (
-            <button
-              onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
-              className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-            >
-              {isInJunkFolder ? (
-                <ShieldCheck className="h-5 w-5 text-green-600 dark:text-green-400" />
-              ) : (
-                <ShieldAlert className="h-5 w-5 text-red-600 dark:text-red-400" />
-              )}
-              {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
-            </button>
-          )}
           {/* Move to folder */}
           {moveTree.length > 0 && onMoveToMailbox && (
             <>
@@ -1324,6 +1314,28 @@ export function EmailViewer({
               <div className="h-px bg-border my-1" />
             </>
           )}
+          {/* Spam */}
+          {(onMarkAsSpam || onUndoSpam) && (
+            <button
+              onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
+              className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+            >
+              {isInJunkFolder ? (
+                <ShieldCheck className="h-5 w-5 text-green-600 dark:text-green-400" />
+              ) : (
+                <ShieldAlert className="h-5 w-5 text-red-600 dark:text-red-400" />
+              )}
+              {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
+            </button>
+          )}
+          {/* Toggle read state */}
+          <button
+            onClick={() => { onMarkAsRead?.(email.id, isUnread); setMoreMenuOpen(false); }}
+            className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+          >
+            {isUnread ? <MailOpen className="w-5 h-5" /> : <Mail className="w-5 h-5" />}
+            {isUnread ? t('mark_read') : t('mark_unread')}
+          </button>
           <button
             onClick={() => { handlePrint(); setMoreMenuOpen(false); }}
             className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
@@ -1390,7 +1402,7 @@ export function EmailViewer({
                   title={t('tooltips.reply')}
                 >
                   <Reply className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('reply')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('reply')}</span>}
                 </Button>
                 <Button
                   variant="ghost"
@@ -1400,7 +1412,7 @@ export function EmailViewer({
                   title={t('tooltips.reply_all')}
                 >
                   <ReplyAll className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('reply_all')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('reply_all')}</span>}
                 </Button>
                 <Button
                   variant="ghost"
@@ -1410,18 +1422,18 @@ export function EmailViewer({
                   title={t('tooltips.forward')}
                 >
                   <Forward className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('forward')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('forward')}</span>}
                 </Button>
               </div>
 
-              {/* Right: Organize actions */}
+              {/* Right: Organize actions — order: archive, delete, move, star, tag, spam, read state, print */}
               <div className="flex items-center gap-0 sm:gap-0.5">
                 {isLoading && (
                   <div className="mr-2 flex items-center gap-1.5 text-muted-foreground">
                     <Loader2 className="w-4 h-4 animate-spin" />
                   </div>
                 )}
-                {/* Archive - hidden on mobile, overflows to More menu */}
+                {/* Archive */}
                 <Button
                   variant="ghost"
                   size="sm"
@@ -1432,8 +1444,9 @@ export function EmailViewer({
                   title={t('tooltips.archive')}
                 >
                   <Archive className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('archive')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('archive')}</span>}
                 </Button>
+                {/* Delete */}
                 <Button
                   variant="ghost"
                   size="sm"
@@ -1442,40 +1455,21 @@ export function EmailViewer({
                   title={t('tooltips.delete')}
                 >
                   <Trash2 className="w-4 h-4" />
-                  <span className="text-[10px] leading-tight sm:text-sm">{t('delete')}</span>
+                  {showToolbarLabels && <span className="text-[10px] leading-tight sm:text-sm">{t('delete')}</span>}
                 </Button>
-                {/* Spam - hidden on mobile, overflows to More menu */}
+                {/* Move to folder — promoted to Button, same design as archive/delete */}
-                {(onMarkAsSpam || onUndoSpam) && (
-                  <Button
-                    variant="ghost"
-                    size="sm"
-                    onClick={isInJunkFolder ? onUndoSpam : onMarkAsSpam}
-                    data-overflow-item
-                    data-overflow-priority="2"
-                    className={cn(
-                      "hidden sm:inline-flex h-8 gap-1.5",
-                      isInJunkFolder ? "hover:bg-green-50 dark:hover:bg-green-950/30" : "hover:bg-red-50 dark:hover:bg-red-950/30"
-                    )}
-                    title={isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
-                  >
-                    {isInJunkFolder ? (
-                      <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
-                    ) : (
-                      <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
-                    )}
-                  </Button>
-                )}
-                {/* Move to folder - hidden on mobile, overflows to More menu */}
                 {moveTree.length > 0 && onMoveToMailbox && (
-                  <div ref={moveMenuRef} data-overflow-item data-overflow-priority="3" className="relative hidden sm:block">
+                  <div ref={moveMenuRef} data-overflow-item data-overflow-priority="2" className="relative hidden sm:block">
-                    <button
+                    <Button
+                      variant="ghost"
+                      size="sm"
                       onClick={() => { setMoveMenuOpen(!moveMenuOpen); setMoreMenuOpen(false); setTagMenuOpen(false); }}
-                      className="h-8 rounded hover:bg-muted flex items-center gap-1.5 px-2"
+                      className="h-8 gap-1.5"
                       title={t('move_to')}
                     >
-                      <FolderInput className="w-4 h-4 text-muted-foreground" />
+                      <FolderInput className="w-4 h-4" />
-                      <span className="text-xs text-muted-foreground">{t('move_to')}</span>
+                      {showToolbarLabels && <span className="text-sm">{t('move_to')}</span>}
-                    </button>
+                    </Button>
                     {moveMenuOpen && (
                       <div className="absolute right-0 top-full mt-1 py-1 w-48 max-h-72 overflow-y-auto bg-background rounded-lg shadow-lg border border-border z-10">
                         {(() => {
@@ -1514,11 +1508,12 @@ export function EmailViewer({
                     )}
                   </div>
                 )}
+                {/* Star/Flag toggle */}
                 <Button
                   variant="ghost"
                   size="sm"
                   onClick={onToggleStar}
-                  className="flex-col items-center gap-0.5 h-auto py-1.5 px-2 sm:flex-row sm:h-8 sm:w-auto sm:gap-0 sm:py-0 sm:px-2"
+                  className="flex-col items-center gap-0.5 h-auto py-1.5 px-2 sm:flex-row sm:h-8 sm:w-auto sm:gap-1.5 sm:py-0 sm:px-2"
                   title={isStarred ? t('tooltips.unstar') : t('tooltips.star')}
                 >
                   <Star className={cn(
@@ -1528,8 +1523,8 @@ export function EmailViewer({
                   <span className="text-[10px] leading-tight sm:hidden">{isStarred ? t('tooltips.unstar') : t('tooltips.star')}</span>
                 </Button>
 
-                {/* Tag Picker + Divider - hidden on mobile, overflows to More menu */}
+                {/* Tag Picker — hidden on mobile, overflows to More menu */}
-                <div data-overflow-item data-overflow-priority="4" className="hidden sm:flex items-center">
+                <div data-overflow-item data-overflow-priority="3" className="hidden sm:flex items-center">
                 <div className="w-px h-5 bg-border mx-0.5" />
                 <div ref={tagMenuRef} className="relative">
                   <button
@@ -1546,12 +1541,12 @@ export function EmailViewer({
                       return dotClass ? (
                         <>
                           <span className={cn("w-3 h-3 rounded-full", dotClass)} />
-                          <span className="text-xs font-medium text-foreground">{kw!.label}</span>
+                          {showToolbarLabels && <span className="text-xs font-medium text-foreground">{kw!.label}</span>}
                         </>
                       ) : (
                         <>
                           <Tag className="w-4 h-4 text-muted-foreground" />
-                          <span className="text-xs text-muted-foreground">{t('tag')}</span>
+                          {showToolbarLabels && <span className="text-xs text-muted-foreground">{t('tag')}</span>}
                         </>
                       );
                     })()}
@@ -1589,21 +1584,69 @@ export function EmailViewer({
                 </div>
                 </div>
 
-                {/* Print - hidden on mobile, overflows to More menu */}
+                {/* Spam — hidden on mobile, overflows to More menu */}
+                {(onMarkAsSpam || onUndoSpam) && (
+                  <Button
+                    variant="ghost"
+                    size="sm"
+                    onClick={isInJunkFolder ? onUndoSpam : onMarkAsSpam}
+                    data-overflow-item
+                    data-overflow-priority="4"
+                    className={cn(
+                      "hidden sm:inline-flex h-8 gap-1.5",
+                      isInJunkFolder ? "hover:bg-green-50 dark:hover:bg-green-950/30" : "hover:bg-red-50 dark:hover:bg-red-950/30"
+                    )}
+                    title={isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
+                  >
+                    {isInJunkFolder ? (
+                      <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
+                    ) : (
+                      <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
+                    )}
+                  </Button>
+                )}
+
+                {/* Toggle read state — hidden on mobile, overflows to More menu */}
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={() => onMarkAsRead?.(email.id, isUnread)}
+                  data-overflow-item
+                  data-overflow-priority="5"
+                  className="hidden sm:inline-flex h-8 gap-1.5"
+                  title={isUnread ? t('mark_read') : t('mark_unread')}
+                >
+                  {isUnread ? <MailOpen className="w-4 h-4" /> : <Mail className="w-4 h-4" />}
+                </Button>
+
+                {/* Print — hidden on mobile, overflows to More menu */}
                 <Button
                   variant="ghost"
                   size="sm"
                   onClick={handlePrint}
                   data-overflow-item
-                  data-overflow-priority="5"
+                  data-overflow-priority="6"
                   className="hidden sm:inline-flex h-8 gap-1.5"
                   title={t('print')}
                 >
                   <Printer className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('print')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('print')}</span>}
                 </Button>
 
-                {/* More menu - click-based */}
+                {/* View source — hidden on mobile, overflows to More menu */}
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={() => setShowSourceModal(true)}
+                  data-overflow-item
+                  data-overflow-priority="7"
+                  className="hidden sm:inline-flex h-8 gap-1.5"
+                  title={t('view_source')}
+                >
+                  <Code className="w-4 h-4" />
+                </Button>
+
+                {/* More menu — click-based */}
                 <div ref={moreMenuRef} className="relative">
                   <Button
                     variant="ghost"
@@ -1617,30 +1660,17 @@ export function EmailViewer({
                   </Button>
                   {moreMenuOpen && !isMobile && (
                     <div className="absolute right-0 top-full mt-1 w-48 bg-background rounded-md shadow-lg border border-border z-10">
-                      {/* Overflow actions - shown when hidden from toolbar or on mobile */}
+                      {/* Overflow: archive */}
                       <button
                         onClick={() => { onArchive?.(); setMoreMenuOpen(false); }}
-                        className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 5 ? "" : "sm:hidden")}
+                        className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 7 ? "" : "sm:hidden")}
                       >
                         <Archive className="w-4 h-4" />
                         {t('archive')}
                       </button>
-                      {(onMarkAsSpam || onUndoSpam) && (
+                      {/* Overflow: move to folder */}
-                        <button
-                          onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
-                          className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 4 ? "" : "sm:hidden")}
-                        >
-                          {isInJunkFolder ? (
-                            <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
-                          ) : (
-                            <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
-                          )}
-                          {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
-                        </button>
-                      )}
-                      {/* Move to folder submenu */}
                       {moveTree.length > 0 && onMoveToMailbox && (
-                        <div className={cn(overflowCount >= 3 ? "" : "sm:hidden")}>
+                        <div className={cn(overflowCount >= 6 ? "" : "sm:hidden")}>
                           <div className="h-px bg-border my-1" />
                           <div className="px-3 py-1.5 text-xs font-medium text-muted-foreground uppercase tracking-wider">{t('move_to')}</div>
                           {(() => {
@@ -1677,9 +1707,10 @@ export function EmailViewer({
                           })()}
                           <div className="h-px bg-border my-1" />
                         </div>
-                      )}                      {/* Tag submenu */}
+                      )}
+                      {/* Overflow: tag submenu */}
                       {colorOptions.length > 0 && (
-                        <div className={cn(overflowCount >= 2 ? "" : "sm:hidden")}>
+                        <div className={cn(overflowCount >= 5 ? "" : "sm:hidden")}>
                           <div className="h-px bg-border my-1" />
                           <div className="px-3 py-1.5 text-xs font-medium text-muted-foreground uppercase tracking-wider">{t('tag')}</div>
                           {colorOptions.map((option) => (
@@ -1708,16 +1739,40 @@ export function EmailViewer({
                           <div className="h-px bg-border my-1" />
                         </div>
                       )}
+                      {/* Overflow: spam */}
+                      {(onMarkAsSpam || onUndoSpam) && (
+                        <button
+                          onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
+                          className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 4 ? "" : "sm:hidden")}
+                        >
+                          {isInJunkFolder ? (
+                            <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
+                          ) : (
+                            <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
+                          )}
+                          {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
+                        </button>
+                      )}
+                      {/* Overflow: toggle read */}
+                      <button
+                        onClick={() => { onMarkAsRead?.(email.id, isUnread); setMoreMenuOpen(false); }}
+                        className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 3 ? "" : "sm:hidden")}
+                      >
+                        {isUnread ? <MailOpen className="w-4 h-4" /> : <Mail className="w-4 h-4" />}
+                        {isUnread ? t('mark_read') : t('mark_unread')}
+                      </button>
+                      {/* Overflow: print */}
                       <button
                         onClick={() => { handlePrint(); setMoreMenuOpen(false); }}
-                        className={cn("w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 1 ? "" : "sm:hidden")}
+                        className={cn("w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 2 ? "" : "sm:hidden")}
                       >
                         <Printer className="w-4 h-4" />
                         {t('print')}
                       </button>
+                      {/* Overflow: view source */}
                       <button
                         onClick={() => { setShowSourceModal(true); setMoreMenuOpen(false); }}
-                        className="w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2"
+                        className={cn("w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 1 ? "" : "sm:hidden")}
                       >
                         <Code className="w-4 h-4" />
                         {t('view_source')}
@@ -1824,7 +1879,7 @@ export function EmailViewer({
                   title={t('tooltips.reply')}
                 >
                   <Reply className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('reply')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('reply')}</span>}
                 </Button>
                 <Button
                   variant="ghost"
@@ -1834,7 +1889,7 @@ export function EmailViewer({
                   title={t('tooltips.reply_all')}
                 >
                   <ReplyAll className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('reply_all')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('reply_all')}</span>}
                 </Button>
                 <Button
                   variant="ghost"
@@ -1844,18 +1899,18 @@ export function EmailViewer({
                   title={t('tooltips.forward')}
                 >
                   <Forward className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('forward')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('forward')}</span>}
                 </Button>
               </div>
 
-              {/* Right: Organize actions */}
+              {/* Right: Organize actions — order: archive, delete, move, star, tag, spam, read state, print, view source */}
               <div className="flex items-center gap-0 sm:gap-0.5">
                 {isLoading && (
                   <div className="mr-2 flex items-center gap-1.5 text-muted-foreground">
                     <Loader2 className="w-4 h-4 animate-spin" />
                   </div>
                 )}
-                {/* Archive - hidden on mobile, overflows to More menu */}
+                {/* Archive */}
                 <Button
                   variant="ghost"
                   size="sm"
@@ -1866,40 +1921,32 @@ export function EmailViewer({
                   title={t('tooltips.archive')}
                 >
                   <Archive className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('archive')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('archive')}</span>}
                 </Button>
-                {/* Spam - hidden on mobile, overflows to More menu */}
+                {/* Delete */}
-                {(onMarkAsSpam || onUndoSpam) && (
+                <Button
-                  <Button
+                  variant="ghost"
-                    variant="ghost"
+                  size="sm"
-                    size="sm"
+                  onClick={onDelete}
-                    onClick={isInJunkFolder ? onUndoSpam : onMarkAsSpam}
+                  className="flex-col items-center gap-0.5 h-auto py-1.5 px-2 sm:flex-row sm:h-8 sm:gap-1.5 sm:py-0"
-                    data-overflow-item
+                  title={t('tooltips.delete')}
-                    data-overflow-priority="2"
+                >
-                    className={cn(
+                  <Trash2 className="w-4 h-4" />
-                      "hidden sm:inline-flex h-8 gap-1.5",
+                  {showToolbarLabels && <span className="text-[10px] leading-tight sm:text-sm">{t('delete')}</span>}
-                      isInJunkFolder ? "hover:bg-green-50 dark:hover:bg-green-950/30" : "hover:bg-red-50 dark:hover:bg-red-950/30"
+                </Button>
-                    )}
+                {/* Move to folder — promoted to Button, same design as archive/delete */}
-                    title={isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
-                  >
-                    {isInJunkFolder ? (
-                      <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
-                    ) : (
-                      <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
-                    )}
-                  </Button>
-                )}
-                {/* Move to folder - hidden on mobile, overflows to More menu */}
                 {moveTree.length > 0 && onMoveToMailbox && (
-                  <div ref={moveMenuRef} data-overflow-item data-overflow-priority="3" className="relative hidden sm:block">
+                  <div ref={moveMenuRef} data-overflow-item data-overflow-priority="2" className="relative hidden sm:block">
-                    <button
+                    <Button
+                      variant="ghost"
+                      size="sm"
                       onClick={() => { setMoveMenuOpen(!moveMenuOpen); setMoreMenuOpen(false); setTagMenuOpen(false); }}
-                      className="h-8 rounded hover:bg-muted flex items-center gap-1.5 px-2"
+                      className="h-8 gap-1.5"
                       title={t('move_to')}
                     >
-                      <FolderInput className="w-4 h-4 text-muted-foreground" />
+                      <FolderInput className="w-4 h-4" />
-                      <span className="text-xs text-muted-foreground">{t('move_to')}</span>
+                      {showToolbarLabels && <span className="text-sm">{t('move_to')}</span>}
-                    </button>
+                    </Button>
                     {moveMenuOpen && (
                       <div className="absolute right-0 top-full mt-1 py-1 w-48 max-h-72 overflow-y-auto bg-background rounded-lg shadow-lg border border-border z-10">
                         {(() => {
@@ -1938,21 +1985,12 @@ export function EmailViewer({
                     )}
                   </div>
                 )}
-                <Button
+                {/* Star/Flag toggle */}
-                  variant="ghost"
-                  size="sm"
-                  onClick={onDelete}
-                  className="flex-col items-center gap-0.5 h-auto py-1.5 px-2 sm:flex-row sm:h-8 sm:gap-1.5 sm:py-0"
-                  title={t('tooltips.delete')}
-                >
-                  <Trash2 className="w-4 h-4" />
-                  <span className="text-[10px] leading-tight sm:text-sm">{t('delete')}</span>
-                </Button>
                 <Button
                   variant="ghost"
                   size="sm"
                   onClick={onToggleStar}
-                  className="flex-col items-center gap-0.5 h-auto py-1.5 px-2 sm:flex-row sm:h-8 sm:w-auto sm:gap-0 sm:py-0 sm:px-2"
+                  className="flex-col items-center gap-0.5 h-auto py-1.5 px-2 sm:flex-row sm:h-8 sm:w-auto sm:gap-1.5 sm:py-0 sm:px-2"
                   title={isStarred ? t('tooltips.unstar') : t('tooltips.star')}
                 >
                   <Star className={cn(
@@ -1962,8 +2000,8 @@ export function EmailViewer({
                   <span className="text-[10px] leading-tight sm:hidden">{isStarred ? t('tooltips.unstar') : t('tooltips.star')}</span>
                 </Button>
 
-                {/* Tag Picker + Divider - hidden on mobile, overflows to More menu */}
+                {/* Tag Picker — hidden on mobile, overflows to More menu */}
-                <div data-overflow-item data-overflow-priority="4" className="hidden sm:flex items-center">
+                <div data-overflow-item data-overflow-priority="3" className="hidden sm:flex items-center">
                 <div className="w-px h-5 bg-border mx-0.5" />
                 <div ref={tagMenuRef} className="relative">
                   <button
@@ -1980,12 +2018,12 @@ export function EmailViewer({
                       return dotClass ? (
                         <>
                           <span className={cn("w-3 h-3 rounded-full", dotClass)} />
-                          <span className="text-xs font-medium text-foreground">{kw!.label}</span>
+                          {showToolbarLabels && <span className="text-xs font-medium text-foreground">{kw!.label}</span>}
                         </>
                       ) : (
                         <>
                           <Tag className="w-4 h-4 text-muted-foreground" />
-                          <span className="text-xs text-muted-foreground">{t('tag')}</span>
+                          {showToolbarLabels && <span className="text-xs text-muted-foreground">{t('tag')}</span>}
                         </>
                       );
                     })()}
@@ -2023,21 +2061,69 @@ export function EmailViewer({
                 </div>
                 </div>
 
-                {/* Print - hidden on mobile, overflows to More menu */}
+                {/* Spam — hidden on mobile, overflows to More menu */}
+                {(onMarkAsSpam || onUndoSpam) && (
+                  <Button
+                    variant="ghost"
+                    size="sm"
+                    onClick={isInJunkFolder ? onUndoSpam : onMarkAsSpam}
+                    data-overflow-item
+                    data-overflow-priority="4"
+                    className={cn(
+                      "hidden sm:inline-flex h-8 gap-1.5",
+                      isInJunkFolder ? "hover:bg-green-50 dark:hover:bg-green-950/30" : "hover:bg-red-50 dark:hover:bg-red-950/30"
+                    )}
+                    title={isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
+                  >
+                    {isInJunkFolder ? (
+                      <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
+                    ) : (
+                      <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
+                    )}
+                  </Button>
+                )}
+
+                {/* Toggle read state — hidden on mobile, overflows to More menu */}
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={() => onMarkAsRead?.(email.id, isUnread)}
+                  data-overflow-item
+                  data-overflow-priority="5"
+                  className="hidden sm:inline-flex h-8 gap-1.5"
+                  title={isUnread ? t('mark_read') : t('mark_unread')}
+                >
+                  {isUnread ? <MailOpen className="w-4 h-4" /> : <Mail className="w-4 h-4" />}
+                </Button>
+
+                {/* Print — hidden on mobile, overflows to More menu */}
                 <Button
                   variant="ghost"
                   size="sm"
                   onClick={handlePrint}
                   data-overflow-item
-                  data-overflow-priority="5"
+                  data-overflow-priority="6"
                   className="hidden sm:inline-flex h-8 gap-1.5"
                   title={t('print')}
                 >
                   <Printer className="w-4 h-4" />
-                  <span className="hidden sm:inline text-sm">{t('print')}</span>
+                  {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('print')}</span>}
                 </Button>
 
-                {/* More menu - click-based */}
+                {/* View source — hidden on mobile, overflows to More menu */}
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={() => setShowSourceModal(true)}
+                  data-overflow-item
+                  data-overflow-priority="7"
+                  className="hidden sm:inline-flex h-8 gap-1.5"
+                  title={t('view_source')}
+                >
+                  <Code className="w-4 h-4" />
+                </Button>
+
+                {/* More menu — click-based */}
                 <div ref={moreMenuRef} className="relative">
                   <Button
                     variant="ghost"
@@ -2051,30 +2137,17 @@ export function EmailViewer({
                   </Button>
                   {moreMenuOpen && !isMobile && (
                     <div className="absolute right-0 top-full mt-1 w-48 bg-background rounded-md shadow-lg border border-border z-10">
-                      {/* Overflow actions - shown when hidden from toolbar or on mobile */}
+                      {/* Overflow: archive */}
                       <button
                         onClick={() => { onArchive?.(); setMoreMenuOpen(false); }}
-                        className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 5 ? "" : "sm:hidden")}
+                        className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 7 ? "" : "sm:hidden")}
                       >
                         <Archive className="w-4 h-4" />
                         {t('archive')}
                       </button>
-                      {(onMarkAsSpam || onUndoSpam) && (
+                      {/* Overflow: move to folder */}
-                        <button
-                          onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
-                          className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 4 ? "" : "sm:hidden")}
-                        >
-                          {isInJunkFolder ? (
-                            <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
-                          ) : (
-                            <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
-                          )}
-                          {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
-                        </button>
-                      )}
-                      {/* Move to folder submenu */}
                       {moveTree.length > 0 && onMoveToMailbox && (
-                        <div className={cn(overflowCount >= 3 ? "" : "sm:hidden")}>
+                        <div className={cn(overflowCount >= 6 ? "" : "sm:hidden")}>
                           <div className="h-px bg-border my-1" />
                           <div className="px-3 py-1.5 text-xs font-medium text-muted-foreground uppercase tracking-wider">{t('move_to')}</div>
                           {(() => {
@@ -2111,9 +2184,10 @@ export function EmailViewer({
                           })()}
                           <div className="h-px bg-border my-1" />
                         </div>
-                      )}                      {/* Tag submenu */}
+                      )}
+                      {/* Overflow: tag submenu */}
                       {colorOptions.length > 0 && (
-                        <div className={cn(overflowCount >= 2 ? "" : "sm:hidden")}>
+                        <div className={cn(overflowCount >= 5 ? "" : "sm:hidden")}>
                           <div className="h-px bg-border my-1" />
                           <div className="px-3 py-1.5 text-xs font-medium text-muted-foreground uppercase tracking-wider">{t('tag')}</div>
                           {colorOptions.map((option) => (
@@ -2142,16 +2216,40 @@ export function EmailViewer({
                           <div className="h-px bg-border my-1" />
                         </div>
                       )}
+                      {/* Overflow: spam */}
+                      {(onMarkAsSpam || onUndoSpam) && (
+                        <button
+                          onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
+                          className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 4 ? "" : "sm:hidden")}
+                        >
+                          {isInJunkFolder ? (
+                            <ShieldCheck className="h-4 w-4 text-green-600 dark:text-green-400" />
+                          ) : (
+                            <ShieldAlert className="h-4 w-4 text-red-600 dark:text-red-400" />
+                          )}
+                          {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
+                        </button>
+                      )}
+                      {/* Overflow: toggle read */}
+                      <button
+                        onClick={() => { onMarkAsRead?.(email.id, isUnread); setMoreMenuOpen(false); }}
+                        className={cn("w-full px-3 py-2.5 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 3 ? "" : "sm:hidden")}
+                      >
+                        {isUnread ? <MailOpen className="w-4 h-4" /> : <Mail className="w-4 h-4" />}
+                        {isUnread ? t('mark_read') : t('mark_unread')}
+                      </button>
+                      {/* Overflow: print */}
                       <button
                         onClick={() => { handlePrint(); setMoreMenuOpen(false); }}
-                        className={cn("w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 1 ? "" : "sm:hidden")}
+                        className={cn("w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 2 ? "" : "sm:hidden")}
                       >
                         <Printer className="w-4 h-4" />
                         {t('print')}
                       </button>
+                      {/* Overflow: view source */}
                       <button
                         onClick={() => { setShowSourceModal(true); setMoreMenuOpen(false); }}
-                        className="w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2"
+                        className={cn("w-full px-3 py-2.5 sm:py-2 text-sm text-left hover:bg-muted text-foreground flex items-center gap-2", overflowCount >= 1 ? "" : "sm:hidden")}
                       >
                         <Code className="w-4 h-4" />
                         {t('view_source')}

components/layout/navigation-rail.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useRef, useEffect, useCallback } from "react";
 import { createPortal } from "react-dom";
-import { Mail, Calendar, BookUser, HardDrive, Settings, LogOut } from "lucide-react";
+import { Mail, Calendar, BookUser, HardDrive, Settings, LogOut, Keyboard } from "lucide-react";
 import { usePathname, Link } from "@/i18n/navigation";
 import { useTranslations } from "next-intl";
 import { useCalendarStore } from "@/stores/calendar-store";
@@ -26,6 +26,7 @@ interface NavigationRailProps {
   quota?: { used: number; total: number } | null;
   isPushConnected?: boolean;
   onLogout?: () => void;
+  onShowShortcuts?: () => void;
 }
 
 function StorageQuotaCircle({ quota, usagePercent }: { quota: { used: number; total: number }; usagePercent: number }) {
@@ -136,6 +137,7 @@ export function NavigationRail({
   quota,
   isPushConnected,
   onLogout,
+  onShowShortcuts,
 }: NavigationRailProps) {
   const t = useTranslations("sidebar");
   const pathname = usePathname();
@@ -263,6 +265,16 @@ export function NavigationRail({
           <StorageQuotaCircle quota={quota} usagePercent={quotaUsagePercent} />
         )}
 
+        {onShowShortcuts && (
+          <button
+            onClick={onShowShortcuts}
+            className="flex items-center justify-center w-10 h-10 rounded-md text-muted-foreground hover:text-foreground hover:bg-muted transition-colors"
+            title={t("keyboard_shortcuts")}
+          >
+            <Keyboard className="w-[18px] h-[18px]" />
+          </button>
+        )}
+
         {isPushConnected != null && (
           <span
             className="relative group"

components/settings/appearance-settings.tsx

@@ -62,7 +62,7 @@ function DensityPreview({ density }: { density: Density }) {
 export function AppearanceSettings() {
   const t = useTranslations('settings.appearance');
   const { theme, setTheme } = useThemeStore();
-  const { fontSize, density, animationsEnabled, toolbarPosition, updateSetting } = useSettingsStore();
+  const { fontSize, density, animationsEnabled, toolbarPosition, showToolbarLabels, updateSetting } = useSettingsStore();
 
   return (
     <SettingsSection title={t('title')} description={t('description')}>
@@ -126,6 +126,14 @@ export function AppearanceSettings() {
         />
       </SettingItem>
 
+      {/* Toolbar Labels */}
+      <SettingItem label={t('toolbar_labels.label')} description={t('toolbar_labels.description')}>
+        <ToggleSwitch
+          checked={showToolbarLabels}
+          onChange={(checked) => updateSetting('showToolbarLabels', checked)}
+        />
+      </SettingItem>
+
       {/* Animations */}
       <SettingItem label={t('animations.label')} description={t('animations.description')}>
         <ToggleSwitch

locales/en/common.json

@@ -65,6 +65,7 @@
     "loading_mailboxes": "Loading mailboxes...",
     "push_connected": "Real-time updates active",
     "push_disconnected": "Real-time updates inactive",
+    "keyboard_shortcuts": "Keyboard Shortcuts",
     "theme": {
       "light": "Light mode",
       "dark": "Dark mode",
@@ -548,6 +549,10 @@
         "description": "Where to show email action buttons (Reply, Archive, Delete, etc.)",
         "top": "Top",
         "below_subject": "Below subject"
+      },
+      "toolbar_labels": {
+        "label": "Show Toolbar Labels",
+        "description": "Display text labels next to toolbar icons. Disable to save space once you are familiar with the icons."
       }
     },
     "keywords": {

stores/settings-store.ts

@@ -97,6 +97,7 @@ interface SettingsState {
 
   // Layout
   toolbarPosition: ToolbarPosition;
+  showToolbarLabels: boolean;
 
   // Experimental
   senderFavicons: boolean;
@@ -175,6 +176,7 @@ const DEFAULT_SETTINGS = {
 
   // Layout
   toolbarPosition: 'top' as ToolbarPosition,
+  showToolbarLabels: true,
 
   // Experimental
   senderFavicons: true,