diff --git a/apps/client/public/locales/en-US/translation.json b/apps/client/public/locales/en-US/translation.json
index 56709bbe..38fd5f2d 100644
--- a/apps/client/public/locales/en-US/translation.json
+++ b/apps/client/public/locales/en-US/translation.json
@@ -416,6 +416,7 @@
   "{{latestVersion}} is available": "{{latestVersion}} is available",
   "Default page edit mode": "Default page edit mode",
   "Choose your preferred page edit mode. Avoid accidental edits.": "Choose your preferred page edit mode. Avoid accidental edits.",
+  "Choose {{format}} file": "Choose {{format}} file",
   "Reading": "Reading",
   "Delete member": "Delete member",
   "Member deleted successfully": "Member deleted successfully",
@@ -900,5 +901,30 @@
   "SCIM tokens": "SCIM tokens",
   "This action cannot be undone. Your identity provider will stop syncing immediately.": "This action cannot be undone. Your identity provider will stop syncing immediately.",
   "Toggle SCIM provisioning": "Toggle SCIM provisioning",
-  "Token": "Token"
+  "Token": "Token",
+  "Page menu": "Page menu",
+  "Expand": "Expand",
+  "Collapse": "Collapse",
+  "Comment menu": "Comment menu",
+  "Group menu": "Group menu",
+  "Show hidden breadcrumbs": "Show hidden breadcrumbs",
+  "Breadcrumbs": "Breadcrumbs",
+  "Page actions": "Page actions",
+  "Pick emoji": "Pick emoji",
+  "Template menu": "Template menu",
+  "Chat menu": "Chat menu",
+  "API key menu": "API key menu",
+  "Jump to comment selection": "Jump to comment selection",
+  "Slash commands": "Slash commands",
+  "Mention suggestions": "Mention suggestions",
+  "Link suggestions": "Link suggestions",
+  "Diagram editor": "Diagram editor",
+  "Add comment": "Add comment",
+  "Find and replace": "Find and replace",
+  "Main navigation": "Main navigation",
+  "Space navigation": "Space navigation",
+  "Settings navigation": "Settings navigation",
+  "AI navigation": "AI navigation",
+  "Breadcrumb": "Breadcrumb",
+  "Skip to main content": "Skip to main content"
 }
diff --git a/apps/client/src/components/common/avatar-uploader.tsx b/apps/client/src/components/common/avatar-uploader.tsx
index 8d9552f6..750e4ba6 100644
--- a/apps/client/src/components/common/avatar-uploader.tsx
+++ b/apps/client/src/components/common/avatar-uploader.tsx
@@ -80,6 +80,12 @@ export default function AvatarUploader({
     }
   };
 
+  const ariaLabel = {
+    [AvatarIconType.AVATAR]: t("Change avatar"),
+    [AvatarIconType.SPACE_ICON]: t("Change space icon"),
+    [AvatarIconType.WORKSPACE_ICON]: t("Change workspace icon"),
+  }[type];
+
   const handleRemove = async () => {
     if (disabled) return;
 
@@ -104,6 +110,8 @@ export default function AvatarUploader({
         ref={fileInputRef}
         onChange={handleFileInputChange}
         accept="image/png,image/jpeg,image/jpg"
+        aria-label={ariaLabel}
+        tabIndex={-1}
         style={{ display: "none" }}
       />
 
@@ -115,6 +123,8 @@ export default function AvatarUploader({
               size={size}
               avatarUrl={currentImageUrl}
               name={fallbackName}
+              aria-label={ariaLabel}
+              aria-haspopup="menu"
               style={{
                 cursor: disabled || isLoading ? "default" : "pointer",
                 opacity: isLoading ? 0.6 : 1,
diff --git a/apps/client/src/components/common/copy.tsx b/apps/client/src/components/common/copy.tsx
index 745fc4ba..2144417b 100644
--- a/apps/client/src/components/common/copy.tsx
+++ b/apps/client/src/components/common/copy.tsx
@@ -25,6 +25,7 @@ export default function CopyTextButton({ text, size }: CopyProps) {
             variant="subtle"
             onClick={copy}
             size={size}
+            aria-label={copied ? t("Copied") : t("Copy")}
           >
             {copied ? <IconCheck size={16} /> : <IconCopy size={16} />}
           </ActionIcon>
diff --git a/apps/client/src/components/common/recent-changes.tsx b/apps/client/src/components/common/recent-changes.tsx
index 277ceb81..8e0e56f2 100644
--- a/apps/client/src/components/common/recent-changes.tsx
+++ b/apps/client/src/components/common/recent-changes.tsx
@@ -4,7 +4,7 @@ import {
   UnstyledButton,
   Badge,
   Table,
-  ActionIcon,
+  ThemeIcon,
   Button,
 } from "@mantine/core";
 import { Link } from "react-router-dom";
@@ -49,9 +49,9 @@ export default function RecentChanges({ spaceId }: Props) {
                   >
                     <Group wrap="nowrap">
                       {page.icon || (
-                        <ActionIcon variant="transparent" color="gray" size={18}>
+                        <ThemeIcon variant="transparent" color="gray" size={18}>
                           <IconFileDescription size={18} />
-                        </ActionIcon>
+                        </ThemeIcon>
                       )}
 
                       <Text fw={500} size="md" lineClamp={1}>
diff --git a/apps/client/src/components/common/search-input.tsx b/apps/client/src/components/common/search-input.tsx
index 08cbbee0..27e50fd4 100644
--- a/apps/client/src/components/common/search-input.tsx
+++ b/apps/client/src/components/common/search-input.tsx
@@ -6,12 +6,14 @@ import { useTranslation } from "react-i18next";
 
 export interface SearchInputProps {
   placeholder?: string;
+  ariaLabel?: string;
   debounceDelay?: number;
   onSearch: (value: string) => void;
 }
 
 export function SearchInput({
   placeholder,
+  ariaLabel,
   debounceDelay = 500,
   onSearch,
 }: SearchInputProps) {
@@ -28,6 +30,7 @@ export function SearchInput({
       <TextInput
         size="sm"
         placeholder={placeholder || t("Search...")}
+        aria-label={ariaLabel || placeholder || t("Search")}
         leftSection={<IconSearch size={16} />}
         value={value}
         onChange={(e) => setValue(e.currentTarget.value)}
diff --git a/apps/client/src/components/icons/icon-people-circle.tsx b/apps/client/src/components/icons/icon-people-circle.tsx
index 99695896..1a2daf73 100644
--- a/apps/client/src/components/icons/icon-people-circle.tsx
+++ b/apps/client/src/components/icons/icon-people-circle.tsx
@@ -1,11 +1,11 @@
-import { ActionIcon, rem } from "@mantine/core";
+import { ThemeIcon } from "@mantine/core";
 import React from "react";
 import { IconUsersGroup } from "@tabler/icons-react";
 
 export function IconGroupCircle() {
   return (
-    <ActionIcon variant="light" size="lg" color="gray" radius="xl">
+    <ThemeIcon variant="light" size="lg" color="gray" radius="xl">
       <IconUsersGroup stroke={1.5} />
-    </ActionIcon>
+    </ThemeIcon>
   );
 }
diff --git a/apps/client/src/components/layouts/global/app-shell.module.css b/apps/client/src/components/layouts/global/app-shell.module.css
index ed369612..7ed93772 100644
--- a/apps/client/src/components/layouts/global/app-shell.module.css
+++ b/apps/client/src/components/layouts/global/app-shell.module.css
@@ -28,4 +28,22 @@
   }
 }
 
+.skipLink {
+  position: fixed;
+  left: 8px;
+  top: 8px;
+  padding: 8px 12px;
+  background: var(--mantine-color-blue-6);
+  color: #fff;
+  border-radius: 4px;
+  text-decoration: none;
+  z-index: 1000;
+  transform: translateY(-150%);
+
+  &:focus {
+    transform: translateY(0);
+    outline: 2px solid var(--mantine-color-blue-3);
+  }
+}
+
 
diff --git a/apps/client/src/components/layouts/global/global-app-shell.tsx b/apps/client/src/components/layouts/global/global-app-shell.tsx
index 6e842a05..99373814 100644
--- a/apps/client/src/components/layouts/global/global-app-shell.tsx
+++ b/apps/client/src/components/layouts/global/global-app-shell.tsx
@@ -1,6 +1,7 @@
 import { AppShell, Container } from "@mantine/core";
 import React, { useEffect, useRef, useState } from "react";
 import { useLocation } from "react-router-dom";
+import { useTranslation } from "react-i18next";
 import SettingsSidebar from "@/components/settings/settings-sidebar.tsx";
 import { useAtom } from "jotai";
 import {
@@ -23,11 +24,12 @@ export default function GlobalAppShell({
 }: {
   children: React.ReactNode;
 }) {
+  const { t } = useTranslation();
   useTrialEndAction();
   const [mobileOpened] = useAtom(mobileSidebarAtom);
   const toggleMobile = useToggleSidebar(mobileSidebarAtom);
   const [desktopOpened] = useAtom(desktopSidebarAtom);
-  const [{ isAsideOpen }] = useAtom(asideStateAtom);
+  const [{ isAsideOpen, tab: asideTab }] = useAtom(asideStateAtom);
   const [sidebarWidth, setSidebarWidth] = useAtom(sidebarWidthAtom);
   const [isResizing, setIsResizing] = useState(false);
   const sidebarRef = useRef(null);
@@ -79,7 +81,11 @@ export default function GlobalAppShell({
   const showGlobalSidebar = !isSpaceRoute && !isSettingsRoute && !isAiRoute;
 
   return (
-    <AppShell
+    <>
+      <a href="#main-content" className={classes.skipLink}>
+        {t("Skip to main content")}
+      </a>
+      <AppShell
       header={{ height: 45 }}
       navbar={{
         width: isSpaceRoute ? sidebarWidth : 300,
@@ -105,6 +111,15 @@ export default function GlobalAppShell({
         className={classes.navbar}
         withBorder={false}
         ref={sidebarRef}
+        aria-label={
+          isSpaceRoute
+            ? t("Space navigation")
+            : isSettingsRoute
+              ? t("Settings navigation")
+              : isAiRoute
+                ? t("AI navigation")
+                : t("Main navigation")
+        }
       >
         {isSpaceRoute && (
           <div className={classes.resizeHandle} onMouseDown={startResizing} />
@@ -114,7 +129,7 @@ export default function GlobalAppShell({
         {isAiRoute && <AiChatSidebar />}
         {showGlobalSidebar && <GlobalSidebar />}
       </AppShell.Navbar>
-      <AppShell.Main>
+      <AppShell.Main id="main-content">
         {isSettingsRoute ? (
           <Container size={900} pb={80}>
             {children}
@@ -125,10 +140,24 @@ export default function GlobalAppShell({
       </AppShell.Main>
 
       {isPageRoute && (
-        <AppShell.Aside className={classes.aside} p="md" withBorder={false}>
+        <AppShell.Aside
+          className={classes.aside}
+          p="md"
+          withBorder={false}
+          aria-label={
+            asideTab === "comments"
+              ? t("Comments")
+              : asideTab === "toc"
+                ? t("Table of contents")
+                : asideTab === "chat"
+                  ? t("AI Chat")
+                  : undefined
+          }
+        >
           <Aside />
         </AppShell.Aside>
       )}
     </AppShell>
+    </>
   );
 }
diff --git a/apps/client/src/components/layouts/global/global-sidebar.module.css b/apps/client/src/components/layouts/global/global-sidebar.module.css
index 37cb60b6..9a7bc1b6 100644
--- a/apps/client/src/components/layouts/global/global-sidebar.module.css
+++ b/apps/client/src/components/layouts/global/global-sidebar.module.css
@@ -50,7 +50,7 @@
 .sectionHeader {
     padding: var(--mantine-spacing-xs) var(--mantine-spacing-sm);
     font-size: var(--mantine-font-size-xs);
-    color: light-dark(var(--mantine-color-gray-6), var(--mantine-color-dark-3));
+    color: var(--mantine-color-dimmed);
     font-weight: 600;
     text-transform: uppercase;
     letter-spacing: 0.5px;
diff --git a/apps/client/src/components/layouts/global/global-sidebar.tsx b/apps/client/src/components/layouts/global/global-sidebar.tsx
index a46974ae..5019d5d9 100644
--- a/apps/client/src/components/layouts/global/global-sidebar.tsx
+++ b/apps/client/src/components/layouts/global/global-sidebar.tsx
@@ -1,5 +1,5 @@
 import { useEffect, useState } from "react";
-import { ScrollArea, Text, Divider, Modal } from "@mantine/core";
+import { ScrollArea, Text, Divider, Modal, UnstyledButton } from "@mantine/core";
 import {
   IconHome,
   IconClock,
@@ -119,17 +119,13 @@ export default function GlobalSidebar() {
       </ScrollArea>
 
       <div className={classes.bottomSection}>
-        <a
+        <UnstyledButton
           className={classes.link}
-          onClick={(e) => {
-            e.preventDefault();
-            openInvite();
-          }}
-          href="#"
+          onClick={openInvite}
         >
           <IconUserPlus className={classes.linkIcon} stroke={2} />
           <span>{t("Invite People")}</span>
-        </a>
+        </UnstyledButton>
         <Link
           className={classes.link}
           data-active={active.startsWith("/settings") || undefined}
diff --git a/apps/client/src/components/settings/app-version.tsx b/apps/client/src/components/settings/app-version.tsx
index 5ba9ce2a..44e0b8c4 100644
--- a/apps/client/src/components/settings/app-version.tsx
+++ b/apps/client/src/components/settings/app-version.tsx
@@ -29,7 +29,7 @@ export default function AppVersion() {
       >
         <Indicator
           label={t("New update")}
-          color="gray"
+          color="dark"
           inline
           size={16}
           position="middle-end"
diff --git a/apps/client/src/components/settings/settings-sidebar.tsx b/apps/client/src/components/settings/settings-sidebar.tsx
index 8ea1f59f..542cad91 100644
--- a/apps/client/src/components/settings/settings-sidebar.tsx
+++ b/apps/client/src/components/settings/settings-sidebar.tsx
@@ -230,32 +230,6 @@ export default function SettingsSidebar() {
           }
 
           const isDisabled = isItemDisabled(item);
-          const linkElement = (
-            <Link
-              onMouseEnter={!isDisabled ? prefetchHandler : undefined}
-              className={classes.link}
-              data-active={active.startsWith(item.path) || undefined}
-              data-disabled={isDisabled || undefined}
-              key={item.label}
-              to={isDisabled ? "#" : item.path}
-              onClick={(e) => {
-                if (isDisabled) {
-                  e.preventDefault();
-                  return;
-                }
-                if (mobileSidebarOpened) {
-                  toggleMobileSidebar();
-                }
-              }}
-              style={{
-                opacity: isDisabled ? 0.5 : 1,
-                cursor: isDisabled ? "not-allowed" : "pointer",
-              }}
-            >
-              <item.icon className={classes.linkIcon} stroke={2} />
-              <span>{t(item.label)}</span>
-            </Link>
-          );
 
           if (isDisabled) {
             return (
@@ -265,12 +239,41 @@ export default function SettingsSidebar() {
                 position="right"
                 withArrow
               >
-                {linkElement}
+                <span
+                  className={classes.link}
+                  data-disabled
+                  role="link"
+                  aria-disabled="true"
+                  tabIndex={0}
+                  style={{
+                    opacity: 0.5,
+                    cursor: "not-allowed",
+                  }}
+                >
+                  <item.icon className={classes.linkIcon} stroke={2} />
+                  <span>{t(item.label)}</span>
+                </span>
               </Tooltip>
             );
           }
 
-          return linkElement;
+          return (
+            <Link
+              onMouseEnter={prefetchHandler}
+              className={classes.link}
+              data-active={active.startsWith(item.path) || undefined}
+              key={item.label}
+              to={item.path}
+              onClick={() => {
+                if (mobileSidebarOpened) {
+                  toggleMobileSidebar();
+                }
+              }}
+            >
+              <item.icon className={classes.linkIcon} stroke={2} />
+              <span>{t(item.label)}</span>
+            </Link>
+          );
         })}
       </div>
     );
@@ -288,7 +291,7 @@ export default function SettingsSidebar() {
           }}
           variant="transparent"
           c="gray"
-          aria-label="Back"
+          aria-label={t("Back")}
         >
           <IconArrowLeft stroke={2} />
         </ActionIcon>
diff --git a/apps/client/src/components/ui/custom-avatar.tsx b/apps/client/src/components/ui/custom-avatar.tsx
index 1342cdfb..5f38e804 100644
--- a/apps/client/src/components/ui/custom-avatar.tsx
+++ b/apps/client/src/components/ui/custom-avatar.tsx
@@ -1,5 +1,5 @@
 import React from "react";
-import { Avatar } from "@mantine/core";
+import { Avatar, MantineColor } from "@mantine/core";
 import { getAvatarUrl } from "@/lib/config.ts";
 import { AvatarIconType } from "@/features/attachments/types/attachment.types.ts";
 
@@ -16,11 +16,39 @@ interface CustomAvatarProps {
   mt?: string | number;
 }
 
+// `color.shade` pairs whose filled background meets WCAG AA (4.5:1) against
+// white text. Avoids lime/yellow/green/orange — even their dark shades have
+// weak white-text contrast.
+const SAFE_INITIALS_COLORS: MantineColor[] = [
+  "blue.8",
+  "cyan.9",
+  "grape.7",
+  "indigo.7",
+  "pink.8",
+  "red.8",
+  "violet.7",
+];
+
+function hashName(input: string) {
+  let hash = 0;
+  for (let i = 0; i < input.length; i += 1) {
+    hash = (hash << 5) - hash + input.charCodeAt(i);
+    hash |= 0;
+  }
+  return Math.abs(hash);
+}
+
+function pickInitialsColor(name: string) {
+  return SAFE_INITIALS_COLORS[hashName(name) % SAFE_INITIALS_COLORS.length];
+}
+
 export const CustomAvatar = React.forwardRef<
   HTMLInputElement,
   CustomAvatarProps
->(({ avatarUrl, name, type, ...props }: CustomAvatarProps, ref) => {
+>(({ avatarUrl, name, type, color, ...props }: CustomAvatarProps, ref) => {
   const avatarLink = getAvatarUrl(avatarUrl, type);
+  const resolvedColor =
+    !color || color === "initials" ? pickInitialsColor(name ?? "") : color;
 
   return (
     <Avatar
@@ -28,7 +56,7 @@ export const CustomAvatar = React.forwardRef<
       src={avatarLink}
       name={name}
       alt={name}
-      color="initials"
+      color={resolvedColor}
       {...props}
     />
   );
diff --git a/apps/client/src/components/ui/destination-picker/page-children.tsx b/apps/client/src/components/ui/destination-picker/page-children.tsx
index 9db5fd71..c3e84718 100644
--- a/apps/client/src/components/ui/destination-picker/page-children.tsx
+++ b/apps/client/src/components/ui/destination-picker/page-children.tsx
@@ -74,7 +74,18 @@ export function PageChildren({
         />
       ))}
       {hasNextPage && (
-        <div className={classes.loadMore} onClick={() => fetchNextPage()}>
+        <div
+          className={classes.loadMore}
+          onClick={() => fetchNextPage()}
+          onKeyDown={(e) => {
+            if (e.key === "Enter" || e.key === " ") {
+              e.preventDefault();
+              fetchNextPage();
+            }
+          }}
+          role="button"
+          tabIndex={0}
+        >
           {t("Load more")}
         </div>
       )}
diff --git a/apps/client/src/components/ui/emoji-picker.tsx b/apps/client/src/components/ui/emoji-picker.tsx
index 112c2d9c..804d1b0f 100644
--- a/apps/client/src/components/ui/emoji-picker.tsx
+++ b/apps/client/src/components/ui/emoji-picker.tsx
@@ -70,11 +70,14 @@ function EmojiPicker({
       closeOnEscape={true}
     >
       <Popover.Target ref={setTarget}>
-        <ActionIcon 
-          c={actionIconProps?.c || "gray"} 
-          variant={actionIconProps?.variant || "transparent"} 
+        <ActionIcon
+          c={actionIconProps?.c || "gray"}
+          variant={actionIconProps?.variant || "transparent"}
           size={actionIconProps?.size}
           onClick={handlers.toggle}
+          aria-label={t("Pick emoji")}
+          aria-haspopup="dialog"
+          aria-expanded={opened}
         >
           {icon}
         </ActionIcon>
diff --git a/apps/client/src/ee/ai-chat/components/ai-chat-sidebar-item.tsx b/apps/client/src/ee/ai-chat/components/ai-chat-sidebar-item.tsx
index abaf4277..e2bd553c 100644
--- a/apps/client/src/ee/ai-chat/components/ai-chat-sidebar-item.tsx
+++ b/apps/client/src/ee/ai-chat/components/ai-chat-sidebar-item.tsx
@@ -132,6 +132,7 @@ export default function AiChatSidebarItem({
               size="xs"
               color="gray"
               onClick={(e) => e.preventDefault()}
+              aria-label={t("Chat menu")}
             >
               <IconDots size={14} />
             </ActionIcon>
diff --git a/apps/client/src/ee/api-key/components/api-key-table.tsx b/apps/client/src/ee/api-key/components/api-key-table.tsx
index 48757acc..f17b3d8d 100644
--- a/apps/client/src/ee/api-key/components/api-key-table.tsx
+++ b/apps/client/src/ee/api-key/components/api-key-table.tsx
@@ -44,7 +44,7 @@ export function ApiKeyTable({
             <Table.Th>{t("Last used")}</Table.Th>
             <Table.Th>{t("Expires")}</Table.Th>
             <Table.Th>{t("Created")}</Table.Th>
-            <Table.Th></Table.Th>
+            <Table.Th aria-label={t("Action")} />
           </Table.Tr>
         </Table.Thead>
 
@@ -106,7 +106,11 @@ export function ApiKeyTable({
                 <Table.Td>
                   <Menu position="bottom-end" withinPortal>
                     <Menu.Target>
-                      <ActionIcon variant="subtle" color="gray">
+                      <ActionIcon
+                        variant="subtle"
+                        color="gray"
+                        aria-label={t("API key menu")}
+                      >
                         <IconDots size={16} />
                       </ActionIcon>
                     </Menu.Target>
diff --git a/apps/client/src/ee/page-verification/components/page-verification-modal.tsx b/apps/client/src/ee/page-verification/components/page-verification-modal.tsx
index df3f75ee..2a59e566 100644
--- a/apps/client/src/ee/page-verification/components/page-verification-modal.tsx
+++ b/apps/client/src/ee/page-verification/components/page-verification-modal.tsx
@@ -1,4 +1,12 @@
-import { ActionIcon, Group, Menu, Modal, Text, Tooltip } from "@mantine/core";
+import {
+  ActionIcon,
+  Group,
+  Menu,
+  Modal,
+  Text,
+  ThemeIcon,
+  Tooltip,
+} from "@mantine/core";
 import { useDisclosure } from "@mantine/hooks";
 import {
   IconRosetteDiscountCheckFilled,
@@ -38,6 +46,7 @@ export function PageVerificationModal({
     <Modal
       opened={opened}
       onClose={onClose}
+      aria-label={status === "none" ? t("Set up verification") : t("Verify page")}
       title={
         <Group gap="xs">
           <IconShieldCheck
@@ -97,9 +106,9 @@ export function PageVerificationBadge({
         withArrow
         openDelay={250}
       >
-        <ActionIcon variant="subtle" color="gray">
+        <ThemeIcon variant="subtle" color="gray">
           <IconShieldCheck size={20} stroke={1.5} />
-        </ActionIcon>
+        </ThemeIcon>
       </Tooltip>
     );
   }
@@ -130,7 +139,12 @@ export function PageVerificationBadge({
         </Tooltip>
       ) : !readOnly ? (
         <Tooltip label={t("Set up verification")} withArrow openDelay={250}>
-          <ActionIcon variant="subtle" color="gray" onClick={open}>
+          <ActionIcon
+            variant="subtle"
+            color="gray"
+            aria-label={t("Set up verification")}
+            onClick={open}
+          >
             <IconShieldCheck size={20} stroke={1.5} />
           </ActionIcon>
         </Tooltip>
diff --git a/apps/client/src/ee/scim/components/scim-token-table.tsx b/apps/client/src/ee/scim/components/scim-token-table.tsx
index 81b596ee..b55e5d18 100644
--- a/apps/client/src/ee/scim/components/scim-token-table.tsx
+++ b/apps/client/src/ee/scim/components/scim-token-table.tsx
@@ -37,7 +37,7 @@ export function ScimTokenTable({
             <Table.Th>{t("Created by")}</Table.Th>
             <Table.Th>{t("Last used")}</Table.Th>
             <Table.Th>{t("Created")}</Table.Th>
-            <Table.Th></Table.Th>
+            <Table.Th aria-label={t("Action")} />
           </Table.Tr>
         </Table.Thead>
 
diff --git a/apps/client/src/ee/security/components/sso-provider-list.tsx b/apps/client/src/ee/security/components/sso-provider-list.tsx
index 3603f959..7f74df8c 100644
--- a/apps/client/src/ee/security/components/sso-provider-list.tsx
+++ b/apps/client/src/ee/security/components/sso-provider-list.tsx
@@ -141,6 +141,7 @@ export default function SsoProviderList() {
                         <ActionIcon
                           variant="subtle"
                           color="gray"
+                          aria-label={t("Edit {{name}}", { name: provider.name })}
                           onClick={() => handleEdit(provider)}
                         >
                           <IconPencil size={16} />
@@ -152,7 +153,13 @@ export default function SsoProviderList() {
                           withinPortal
                         >
                           <Menu.Target>
-                            <ActionIcon variant="subtle" color="gray">
+                            <ActionIcon
+                              variant="subtle"
+                              color="gray"
+                              aria-label={t("More actions for {{name}}", {
+                                name: provider.name,
+                              })}
+                            >
                               <IconDots size={16} />
                             </ActionIcon>
                           </Menu.Target>
diff --git a/apps/client/src/ee/template/components/template-card.tsx b/apps/client/src/ee/template/components/template-card.tsx
index 347140f1..5076900d 100644
--- a/apps/client/src/ee/template/components/template-card.tsx
+++ b/apps/client/src/ee/template/components/template-card.tsx
@@ -56,6 +56,7 @@ export default function TemplateCard({
                     color="gray"
                     className={classes.menuTarget}
                     onClick={(e) => e.stopPropagation()}
+                    aria-label={t("Template menu")}
                   >
                     <IconDots size={16} />
                   </ActionIcon>
diff --git a/apps/client/src/ee/template/components/template-preview-modal.tsx b/apps/client/src/ee/template/components/template-preview-modal.tsx
index d51b95ca..f9eed6a9 100644
--- a/apps/client/src/ee/template/components/template-preview-modal.tsx
+++ b/apps/client/src/ee/template/components/template-preview-modal.tsx
@@ -24,7 +24,7 @@ export default function TemplatePreviewModal({
   const title = template?.title || t("Untitled");
 
   return (
-    <Modal.Root size={1200} opened={opened} onClose={onClose}>
+    <Modal.Root size={1200} opened={opened} onClose={onClose} aria-label={title}>
       <Modal.Overlay />
       <Modal.Content style={{ overflow: "hidden" }}>
         <Modal.Header>
diff --git a/apps/client/src/features/comment/components/comment-dialog.tsx b/apps/client/src/features/comment/components/comment-dialog.tsx
index 24781a94..ac7107f9 100644
--- a/apps/client/src/features/comment/components/comment-dialog.tsx
+++ b/apps/client/src/features/comment/components/comment-dialog.tsx
@@ -144,6 +144,7 @@ function CommentDialog({ editor, pageId, readOnly }: CommentDialogProps) {
       withCloseButton
       withBorder
       data-comment-dialog
+      aria-label={t("Add comment")}
     >
       <Stack gap={2}>
         <Group>
diff --git a/apps/client/src/features/comment/components/comment-list-item.tsx b/apps/client/src/features/comment/components/comment-list-item.tsx
index cfb69a0e..8af21d28 100644
--- a/apps/client/src/features/comment/components/comment-list-item.tsx
+++ b/apps/client/src/features/comment/components/comment-list-item.tsx
@@ -173,6 +173,15 @@ function CommentListItem({
           <Box
             className={classes.textSelection}
             onClick={() => handleCommentClick(comment)}
+            onKeyDown={(e) => {
+              if (e.key === "Enter" || e.key === " ") {
+                e.preventDefault();
+                handleCommentClick(comment);
+              }
+            }}
+            role="button"
+            tabIndex={0}
+            aria-label={t("Jump to comment selection")}
           >
             <Text size="sm">{comment?.selection}</Text>
           </Box>
diff --git a/apps/client/src/features/comment/components/comment-menu.tsx b/apps/client/src/features/comment/components/comment-menu.tsx
index fe047232..690815e6 100644
--- a/apps/client/src/features/comment/components/comment-menu.tsx
+++ b/apps/client/src/features/comment/components/comment-menu.tsx
@@ -46,7 +46,11 @@ function CommentMenu({
   return (
     <Menu shadow="md" width={200}>
       <Menu.Target>
-        <ActionIcon variant="default" style={{ border: "none" }}>
+        <ActionIcon
+          variant="default"
+          style={{ border: "none" }}
+          aria-label={t("Comment menu")}
+        >
           <IconDots size={20} stroke={2} />
         </ActionIcon>
       </Menu.Target>
diff --git a/apps/client/src/features/editor/components/audio/audio-view.tsx b/apps/client/src/features/editor/components/audio/audio-view.tsx
index 9e5f619f..3dc0739d 100644
--- a/apps/client/src/features/editor/components/audio/audio-view.tsx
+++ b/apps/client/src/features/editor/components/audio/audio-view.tsx
@@ -36,6 +36,7 @@ export default function AudioView(props: NodeViewProps) {
             preload="metadata"
             controls
             src={safeSrc}
+            aria-label={placeholder?.name || t("Audio")}
           />
         )}
         {!safeSrc && previewSrc && (
@@ -45,6 +46,7 @@ export default function AudioView(props: NodeViewProps) {
               preload="metadata"
               controls
               src={previewSrc}
+              aria-label={placeholder?.name || t("Audio")}
             />
             <Loader size={20} pos="absolute" top={6} right={6} />
           </Group>
@@ -60,7 +62,7 @@ export default function AudioView(props: NodeViewProps) {
           </Group>
         )}
         {!safeSrc && !previewSrc && !placeholder && (
-          <audio className={classes.audio} controls />
+          <audio className={classes.audio} controls aria-label={t("Audio")} />
         )}
       </div>
     </NodeViewWrapper>
diff --git a/apps/client/src/features/editor/components/bubble-menu/color-selector.tsx b/apps/client/src/features/editor/components/bubble-menu/color-selector.tsx
index 0d4d80c0..1363858a 100644
--- a/apps/client/src/features/editor/components/bubble-menu/color-selector.tsx
+++ b/apps/client/src/features/editor/components/bubble-menu/color-selector.tsx
@@ -172,6 +172,9 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
               fontWeight: 500,
               fontSize: rem(16),
             }}
+            aria-label={t("Text color")}
+            aria-haspopup="dialog"
+            aria-expanded={isOpen}
           >
             A
           </Button>
@@ -186,20 +189,32 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                 {t("Text color")}
               </Text>
               <SimpleGrid cols={5} spacing="xs">
-                {TEXT_COLORS.map(({ name, color }, index) => (
+                {TEXT_COLORS.map(({ name, color }, index) => {
+                  const applyTextColor = () => {
+                    if (name === "Default") {
+                      editor.commands.unsetColor();
+                    } else {
+                      editor
+                        .chain()
+                        .focus()
+                        .setColor(color || "")
+                        .run();
+                    }
+                    setIsOpen(false);
+                  };
+                  return (
                   <Tooltip key={index} label={t(name)} withArrow>
                     <Box
-                      onClick={() => {
-                        if (name === "Default") {
-                          editor.commands.unsetColor();
-                        } else {
-                          editor
-                            .chain()
-                            .focus()
-                            .setColor(color || "")
-                            .run();
+                      role="button"
+                      tabIndex={0}
+                      aria-label={t(name)}
+                      aria-pressed={!!editorState[`text_${color}`]}
+                      onClick={applyTextColor}
+                      onKeyDown={(e) => {
+                        if (e.key === "Enter" || e.key === " ") {
+                          e.preventDefault();
+                          applyTextColor();
                         }
-                        setIsOpen(false);
                       }}
                       style={{
                         width: rem(28),
@@ -221,7 +236,8 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                       A
                     </Box>
                   </Tooltip>
-                ))}
+                  );
+                })}
               </SimpleGrid>
             </Box>
 
@@ -230,23 +246,35 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                 {t("Highlight color")}
               </Text>
               <SimpleGrid cols={5} spacing="xs">
-                {HIGHLIGHT_COLORS.map(({ name, color }, index) => (
+                {HIGHLIGHT_COLORS.map(({ name, color }, index) => {
+                  const applyHighlight = () => {
+                    if (name === "Default") {
+                      editor.commands.unsetHighlight();
+                    } else {
+                      editor
+                        .chain()
+                        .focus()
+                        .toggleMark("highlight", {
+                          color: color || "",
+                          colorName: name.toLowerCase() || "",
+                        })
+                        .run();
+                    }
+                    setIsOpen(false);
+                  };
+                  return (
                   <Tooltip key={index} label={t(name)} withArrow>
                     <Box
-                      onClick={() => {
-                        if (name === "Default") {
-                          editor.commands.unsetHighlight();
-                        } else {
-                          editor
-                            .chain()
-                            .focus()
-                            .toggleMark("highlight", {
-                              color: color || "",
-                              colorName: name.toLowerCase() || "",
-                            })
-                            .run();
+                      role="button"
+                      tabIndex={0}
+                      aria-label={t(name)}
+                      aria-pressed={!!editorState[`highlight_${color}`]}
+                      onClick={applyHighlight}
+                      onKeyDown={(e) => {
+                        if (e.key === "Enter" || e.key === " ") {
+                          e.preventDefault();
+                          applyHighlight();
                         }
-                        setIsOpen(false);
                       }}
                       style={{
                         width: rem(28),
@@ -274,7 +302,8 @@ export const ColorSelector: FC<ColorSelectorProps> = ({
                       )}
                     </Box>
                   </Tooltip>
-                ))}
+                  );
+                })}
               </SimpleGrid>
             </Box>
 
diff --git a/apps/client/src/features/editor/components/bubble-menu/node-selector.tsx b/apps/client/src/features/editor/components/bubble-menu/node-selector.tsx
index 7fecff9e..55fe427e 100644
--- a/apps/client/src/features/editor/components/bubble-menu/node-selector.tsx
+++ b/apps/client/src/features/editor/components/bubble-menu/node-selector.tsx
@@ -157,6 +157,9 @@ export const NodeSelector: FC<NodeSelectorProps> = ({
             radius="0"
             rightSection={<IconChevronDown size={16} />}
             onClick={() => setIsOpen(!isOpen)}
+            aria-label={t("Turn into")}
+            aria-haspopup="menu"
+            aria-expanded={isOpen}
           >
             {t(activeItem?.name)}
           </Button>
diff --git a/apps/client/src/features/editor/components/bubble-menu/text-alignment-selector.tsx b/apps/client/src/features/editor/components/bubble-menu/text-alignment-selector.tsx
index f8dba1c9..d4d9876e 100644
--- a/apps/client/src/features/editor/components/bubble-menu/text-alignment-selector.tsx
+++ b/apps/client/src/features/editor/components/bubble-menu/text-alignment-selector.tsx
@@ -92,6 +92,9 @@ export const TextAlignmentSelector: FC<TextAlignmentProps> = ({
             radius="0"
             rightSection={<IconChevronDown size={16} />}
             onClick={() => setIsOpen(!isOpen)}
+            aria-label={t("Text align")}
+            aria-haspopup="menu"
+            aria-expanded={isOpen}
           >
             <activeItem.icon style={{ width: rem(16) }} stroke={2} />
           </Button>
diff --git a/apps/client/src/features/editor/components/drawio/drawio-view.tsx b/apps/client/src/features/editor/components/drawio/drawio-view.tsx
index 357057bf..fe10bf05 100644
--- a/apps/client/src/features/editor/components/drawio/drawio-view.tsx
+++ b/apps/client/src/features/editor/components/drawio/drawio-view.tsx
@@ -137,7 +137,13 @@ export default function DrawioView(props: NodeViewProps) {
 
   return (
     <NodeViewWrapper data-drag-handle>
-      <Modal.Root opened={opened} onClose={handleClose} fullScreen closeOnEscape={false}>
+      <Modal.Root
+        opened={opened}
+        onClose={handleClose}
+        fullScreen
+        closeOnEscape={false}
+        aria-label={t("Diagram editor")}
+      >
         <Modal.Overlay />
         <Modal.Content style={{ overflow: "hidden" }}>
           <Modal.Body pos="relative">
diff --git a/apps/client/src/features/editor/components/emoji-menu/emoji-list.tsx b/apps/client/src/features/editor/components/emoji-menu/emoji-list.tsx
index 15428bbe..cbe63479 100644
--- a/apps/client/src/features/editor/components/emoji-menu/emoji-list.tsx
+++ b/apps/client/src/features/editor/components/emoji-menu/emoji-list.tsx
@@ -107,7 +107,17 @@ const EmojiList = ({
   }, [selectedIndex]);
 
   return items.length > 0 || isLoading ? (
-    <Paper id="emoji-command" p="0" shadow="md" withBorder>
+    <Paper
+      id="emoji-command"
+      p="0"
+      shadow="md"
+      withBorder
+      role="listbox"
+      aria-label="Emoji results"
+      aria-activedescendant={
+        items.length > 0 ? `emoji-command-option-${selectedIndex}` : undefined
+      }
+    >
       {isLoading && <Loader m="xs" color="blue" type="dots" />}
       {items.length > 0 && (
         <ScrollArea.Autosize
@@ -120,6 +130,10 @@ const EmojiList = ({
             {items.map((item, index: number) => (
               <ActionIcon
                 data-item-index={index}
+                id={`emoji-command-option-${index}`}
+                role="option"
+                aria-selected={index === selectedIndex}
+                aria-label={item.id}
                 variant="transparent"
                 key={item.id}
                 className={clsx(classes.menuBtn, {
diff --git a/apps/client/src/features/editor/components/link/link-editor-panel.tsx b/apps/client/src/features/editor/components/link/link-editor-panel.tsx
index 54e36401..89389a91 100644
--- a/apps/client/src/features/editor/components/link/link-editor-panel.tsx
+++ b/apps/client/src/features/editor/components/link/link-editor-panel.tsx
@@ -102,6 +102,14 @@ export const LinkEditorPanel = ({
           leftSection={<IconLink size={16} stroke={1.5} color="var(--mantine-color-dimmed)" />}
           classNames={{ input: classes.linkInput }}
           placeholder={t("Paste link or search pages")}
+          aria-label={t("Paste link or search pages")}
+          role="combobox"
+          aria-expanded={showDropdown}
+          aria-controls="link-editor-results"
+          aria-autocomplete="list"
+          aria-activedescendant={
+            showDropdown ? `link-editor-option-${selectedIndex}` : undefined
+          }
           value={state.url}
           onChange={state.onChange}
           onKeyDown={handleKeyDown}
@@ -125,10 +133,16 @@ export const LinkEditorPanel = ({
             scrollbarSize={6}
             mt={state.url.length > 0 ? 8 : 0}
             styles={{ content: { minWidth: 0 } }}
+            id="link-editor-results"
+            role="listbox"
+            aria-label={t("Link suggestions")}
           >
             {showUrlItem && (
               <UnstyledButton
                 data-item-index={0}
+                id="link-editor-option-0"
+                role="option"
+                aria-selected={selectedIndex === 0}
                 onClick={() => onSetLink(state.url, false)}
                 className={clsx(classes.searchItem, {
                   [classes.selectedSearchItem]: selectedIndex === 0,
@@ -156,6 +170,9 @@ export const LinkEditorPanel = ({
               return (
                 <UnstyledButton
                   data-item-index={itemIndex}
+                  id={`link-editor-option-${itemIndex}`}
+                  role="option"
+                  aria-selected={itemIndex === selectedIndex}
                   key={page.id || index}
                   onClick={() => selectPage(page)}
                   className={clsx(classes.searchItem, {
diff --git a/apps/client/src/features/editor/components/mention/mention-list.tsx b/apps/client/src/features/editor/components/mention/mention-list.tsx
index 3ddf3976..330bded9 100644
--- a/apps/client/src/features/editor/components/mention/mention-list.tsx
+++ b/apps/client/src/features/editor/components/mention/mention-list.tsx
@@ -287,7 +287,16 @@ const MentionList = forwardRef<any, MentionListProps>((props, ref) => {
   );
 
   return (
-    <Paper id="mention" shadow="md" withBorder radius="md" py={6}>
+    <Paper
+      id="mention"
+      shadow="md"
+      withBorder
+      radius="md"
+      py={6}
+      role="listbox"
+      aria-label={t("Mention suggestions")}
+      aria-activedescendant={`mention-option-${selectedIndex}`}
+    >
       <ScrollArea.Autosize
         viewportRef={viewportRef}
         mah={350}
@@ -301,7 +310,7 @@ const MentionList = forwardRef<any, MentionListProps>((props, ref) => {
           if (item.entityType === "header") {
             const isFirst = index === 0;
             return (
-              <div key={`${item.label}-${index}`}>
+              <div key={`${item.label}-${index}`} role="presentation">
                 {!isFirst && <Divider my={6} />}
                 <Text
                   c="dimmed"
@@ -322,6 +331,9 @@ const MentionList = forwardRef<any, MentionListProps>((props, ref) => {
               <UnstyledButton
                 data-item-index={index}
                 key={index}
+                id={`mention-option-${index}`}
+                role="option"
+                aria-selected={index === selectedIndex}
                 onClick={() => selectItem(index)}
                 className={clsx(classes.menuBtn, {
                   [classes.selectedItem]: index === selectedIndex,
@@ -348,6 +360,9 @@ const MentionList = forwardRef<any, MentionListProps>((props, ref) => {
               <UnstyledButton
                 data-item-index={index}
                 key={index}
+                id={`mention-option-${index}`}
+                role="option"
+                aria-selected={index === selectedIndex}
                 onClick={() => selectItem(index)}
                 className={clsx(classes.menuBtn, {
                   [classes.selectedItem]: index === selectedIndex,
@@ -358,7 +373,7 @@ const MentionList = forwardRef<any, MentionListProps>((props, ref) => {
                   <ActionIcon
                     variant="subtle"
                     component="div"
-                    aria-label={item.label}
+                    aria-hidden="true"
                     color="gray"
                     size="sm"
                   >
@@ -390,6 +405,11 @@ const MentionList = forwardRef<any, MentionListProps>((props, ref) => {
             {(hasUsers || hasPages) && <Divider my={6} />}
             <UnstyledButton
               data-item-index={renderItems.indexOf(createPageItemData)}
+              id={`mention-option-${renderItems.indexOf(createPageItemData)}`}
+              role="option"
+              aria-selected={
+                renderItems.indexOf(createPageItemData) === selectedIndex
+              }
               onClick={() =>
                 selectItem(renderItems.indexOf(createPageItemData))
               }
@@ -405,6 +425,7 @@ const MentionList = forwardRef<any, MentionListProps>((props, ref) => {
                   component="div"
                   color="gray"
                   size="sm"
+                  aria-hidden="true"
                 >
                   <IconPlus size={16} stroke={1.5} />
                 </ActionIcon>
diff --git a/apps/client/src/features/editor/components/pdf/pdf-view.tsx b/apps/client/src/features/editor/components/pdf/pdf-view.tsx
index 4d06402b..693d3755 100644
--- a/apps/client/src/features/editor/components/pdf/pdf-view.tsx
+++ b/apps/client/src/features/editor/components/pdf/pdf-view.tsx
@@ -92,7 +92,20 @@ export default function PdfView(props: NodeViewProps) {
   if (hasError) {
     return (
       <NodeViewWrapper data-drag-handle>
-        <div data-pdf-error className={clsx(classes.pdfError, { "ProseMirror-selectednode": selected })} onClick={handleSelect}>
+        <div
+          data-pdf-error
+          className={clsx(classes.pdfError, { "ProseMirror-selectednode": selected })}
+          onClick={handleSelect}
+          onKeyDown={(e) => {
+            if (e.key === "Enter" || e.key === " ") {
+              e.preventDefault();
+              handleSelect();
+            }
+          }}
+          role="button"
+          tabIndex={0}
+          aria-label={t("Failed to load PDF")}
+        >
           <IconFileTypePdf size={32} stroke={1.5} />
           <Text size="sm" c="dimmed">
             {t("Failed to load PDF")}
diff --git a/apps/client/src/features/editor/components/search-and-replace/search-and-replace-dialog.tsx b/apps/client/src/features/editor/components/search-and-replace/search-and-replace-dialog.tsx
index f5c17661..a6054d22 100644
--- a/apps/client/src/features/editor/components/search-and-replace/search-and-replace-dialog.tsx
+++ b/apps/client/src/features/editor/components/search-and-replace/search-and-replace-dialog.tsx
@@ -187,12 +187,14 @@ function SearchAndReplaceDialog({ editor, editable = true }: PageFindDialogDialo
       position={{ top: 90, right: 50 }}
       withBorder
       transitionProps={{ transition: "slide-down" }}
+      aria-label={t("Find and replace")}
     >
       <Stack gap="xs">
         <Flex align="center" gap="xs">
           <Input
             ref={inputRef}
             placeholder={t("Find")}
+            aria-label={t("Find")}
             leftSection={<IconSearch size={16} />}
             rightSection={
               <Text size="xs" ta="right">
@@ -217,7 +219,12 @@ function SearchAndReplaceDialog({ editor, editable = true }: PageFindDialogDialo
 
           <ActionIcon.Group>
             <Tooltip label={t("Previous match (Shift+Enter)")}>
-              <ActionIcon variant="subtle" color="gray" onClick={previous}>
+              <ActionIcon
+                variant="subtle"
+                color="gray"
+                onClick={previous}
+                aria-label={t("Previous match (Shift+Enter)")}
+              >
                 <IconArrowNarrowUp
                   style={{ width: "70%", height: "70%" }}
                   stroke={1.5}
@@ -225,7 +232,12 @@ function SearchAndReplaceDialog({ editor, editable = true }: PageFindDialogDialo
               </ActionIcon>
             </Tooltip>
             <Tooltip label={t("Next match (Enter)")}>
-              <ActionIcon variant="subtle" color="gray" onClick={next}>
+              <ActionIcon
+                variant="subtle"
+                color="gray"
+                onClick={next}
+                aria-label={t("Next match (Enter)")}
+              >
                 <IconArrowNarrowDown
                   style={{ width: "70%", height: "70%" }}
                   stroke={1.5}
@@ -237,6 +249,8 @@ function SearchAndReplaceDialog({ editor, editable = true }: PageFindDialogDialo
                 variant="subtle"
                 color={caseSensitive.color}
                 onClick={() => caseSensitiveToggle()}
+                aria-label={t("Match case (Alt+C)")}
+                aria-pressed={caseSensitive.isCaseSensitive}
               >
                 <IconLetterCase
                   style={{ width: "70%", height: "70%" }}
@@ -250,6 +264,8 @@ function SearchAndReplaceDialog({ editor, editable = true }: PageFindDialogDialo
                   variant="subtle"
                   color={replaceButton.color}
                   onClick={() => replaceButtonToggle()}
+                  aria-label={t("Replace")}
+                  aria-pressed={replaceButton.isReplaceShow}
                 >
                   <IconReplace
                     style={{ width: "70%", height: "70%" }}
@@ -259,7 +275,12 @@ function SearchAndReplaceDialog({ editor, editable = true }: PageFindDialogDialo
               </Tooltip>
             )}
             <Tooltip label={t("Close (Escape)")}>
-              <ActionIcon variant="subtle" color="gray" onClick={closeDialog}>
+              <ActionIcon
+                variant="subtle"
+                color="gray"
+                onClick={closeDialog}
+                aria-label={t("Close (Escape)")}
+              >
                 <IconX style={{ width: "70%", height: "70%" }} stroke={1.5} />
               </ActionIcon>
             </Tooltip>
@@ -269,6 +290,7 @@ function SearchAndReplaceDialog({ editor, editable = true }: PageFindDialogDialo
           <Flex align="center" gap="xs">
             <Input
               placeholder={t("Replace")}
+              aria-label={t("Replace")}
               leftSection={<IconReplace size={16} />}
               rightSection={<div></div>}
               rightSectionPointerEvents="all"
diff --git a/apps/client/src/features/editor/components/slash-menu/command-list.tsx b/apps/client/src/features/editor/components/slash-menu/command-list.tsx
index 54d6cd17..ebc06660 100644
--- a/apps/client/src/features/editor/components/slash-menu/command-list.tsx
+++ b/apps/client/src/features/editor/components/slash-menu/command-list.tsx
@@ -86,7 +86,15 @@ const CommandList = ({
   }, [selectedIndex]);
 
   return flatItems.length > 0 ? (
-    <Paper id="slash-command" shadow="md" p="xs" withBorder>
+    <Paper
+      id="slash-command"
+      shadow="md"
+      p="xs"
+      withBorder
+      role="listbox"
+      aria-label={t("Slash commands")}
+      aria-activedescendant={`slash-command-option-${selectedIndex}`}
+    >
       <ScrollArea
         viewportRef={viewportRef}
         h={350}
@@ -94,22 +102,30 @@ const CommandList = ({
         scrollbarSize={8}
         overscrollBehavior="contain"
       >
-        {Object.entries(items).map(([category, categoryItems]) => (
-          <div key={category}>
+        {(() => {
+          let flatIndex = -1;
+          return Object.entries(items).map(([category, categoryItems]) => (
+          <div key={category} role="group" aria-label={category}>
             <Text c="dimmed" mb={4} fw={500} tt="capitalize">
               {category}
             </Text>
-            {categoryItems.map((item: SlashMenuItemType, index: number) => (
+            {categoryItems.map((item: SlashMenuItemType) => {
+              flatIndex += 1;
+              const itemIndex = flatIndex;
+              return (
               <UnstyledButton
-                data-item-index={index}
-                key={index}
-                onClick={() => selectItem(index)}
+                data-item-index={itemIndex}
+                key={itemIndex}
+                id={`slash-command-option-${itemIndex}`}
+                role="option"
+                aria-selected={itemIndex === selectedIndex}
+                onClick={() => selectItem(itemIndex)}
                 className={clsx(classes.menuBtn, {
-                  [classes.selectedItem]: index === selectedIndex,
+                  [classes.selectedItem]: itemIndex === selectedIndex,
                 })}
               >
                 <Group>
-                  <ActionIcon variant="default" component="div">
+                  <ActionIcon variant="default" component="div" aria-hidden="true">
                     <item.icon size={18} />
                   </ActionIcon>
 
@@ -124,9 +140,11 @@ const CommandList = ({
                   </div>
                 </Group>
               </UnstyledButton>
-            ))}
+              );
+            })}
           </div>
-        ))}
+          ));
+        })()}
       </ScrollArea>
     </Paper>
   ) : null;
diff --git a/apps/client/src/features/editor/components/status/status-view.tsx b/apps/client/src/features/editor/components/status/status-view.tsx
index d8f10d79..3cca4b59 100644
--- a/apps/client/src/features/editor/components/status/status-view.tsx
+++ b/apps/client/src/features/editor/components/status/status-view.tsx
@@ -92,8 +92,17 @@ export default function StatusView(props: NodeViewProps) {
               colorClassMap[color],
             )}
             onClick={() => isEditable && setOpened(true)}
+            onKeyDown={(e) => {
+              if (isEditable && (e.key === "Enter" || e.key === " ")) {
+                e.preventDefault();
+                setOpened(true);
+              }
+            }}
             role="button"
             tabIndex={0}
+            aria-label={text || "SET STATUS"}
+            aria-haspopup="dialog"
+            aria-expanded={opened}
           >
             {text || "SET STATUS"}
           </span>
@@ -127,6 +136,16 @@ export default function StatusView(props: NodeViewProps) {
                 )}
                 style={{ backgroundColor: bg }}
                 onClick={() => handleColorChange(name)}
+                onKeyDown={(e) => {
+                  if (e.key === "Enter" || e.key === " ") {
+                    e.preventDefault();
+                    handleColorChange(name);
+                  }
+                }}
+                role="button"
+                tabIndex={0}
+                aria-label={name}
+                aria-pressed={color === name}
               >
                 {color === name && <IconCheck size={14} />}
               </Box>
diff --git a/apps/client/src/features/editor/components/video/video-view.tsx b/apps/client/src/features/editor/components/video/video-view.tsx
index 46ff7908..9a67533b 100644
--- a/apps/client/src/features/editor/components/video/video-view.tsx
+++ b/apps/client/src/features/editor/components/video/video-view.tsx
@@ -47,6 +47,7 @@ export default function VideoView(props: NodeViewProps) {
             preload="metadata"
             controls
             src={getFileUrl(src)}
+            aria-label={placeholder?.name || t("Video")}
           />
         )}
         {!src && previewSrc && (
@@ -56,6 +57,7 @@ export default function VideoView(props: NodeViewProps) {
               preload="metadata"
               controls
               src={previewSrc}
+              aria-label={placeholder?.name || t("Video")}
             />
             <Loader size={20} pos="absolute" top={6} right={6} />
           </Group>
@@ -71,7 +73,7 @@ export default function VideoView(props: NodeViewProps) {
           </Group>
         )}
         {!src && !previewSrc && !placeholder && (
-          <video className={classes.video} controls />
+          <video className={classes.video} controls aria-label={t("Video")} />
         )}
       </div>
     </NodeViewWrapper>
diff --git a/apps/client/src/features/favorite/components/star-button.tsx b/apps/client/src/features/favorite/components/star-button.tsx
index 6a99e01e..7ff8ff77 100644
--- a/apps/client/src/features/favorite/components/star-button.tsx
+++ b/apps/client/src/features/favorite/components/star-button.tsx
@@ -53,15 +53,17 @@ export default function StarButton(props: StarButtonProps) {
     }
   };
 
+  const label = isFavorited
+    ? t("Remove from favorites")
+    : t("Add to favorites");
+
   return (
-    <Tooltip
-      label={isFavorited ? t("Remove from favorites") : t("Add to favorites")}
-      openDelay={250}
-      withArrow
-    >
+    <Tooltip label={label} openDelay={250} withArrow>
       <ActionIcon
         variant="subtle"
         color={isFavorited ? "yellow" : "gray"}
+        aria-label={label}
+        aria-pressed={isFavorited}
         onClick={handleToggle}
         loading={isPending}
       >
diff --git a/apps/client/src/features/group/components/group-action-menu.tsx b/apps/client/src/features/group/components/group-action-menu.tsx
index 331ea3de..8c3dccb0 100644
--- a/apps/client/src/features/group/components/group-action-menu.tsx
+++ b/apps/client/src/features/group/components/group-action-menu.tsx
@@ -53,7 +53,7 @@ export default function GroupActionMenu() {
             arrowPosition="center"
           >
             <Menu.Target>
-              <ActionIcon variant="light">
+              <ActionIcon variant="light" aria-label={t("Group menu")}>
                 <IconDots size={20} stroke={2} />
               </ActionIcon>
             </Menu.Target>
diff --git a/apps/client/src/features/group/components/group-members.tsx b/apps/client/src/features/group/components/group-members.tsx
index 9b5bbd7b..56807bf8 100644
--- a/apps/client/src/features/group/components/group-members.tsx
+++ b/apps/client/src/features/group/components/group-members.tsx
@@ -54,7 +54,7 @@ export default function GroupMembersList() {
             <Table.Tr>
               <Table.Th>{t("User")}</Table.Th>
               <Table.Th>{t("Status")}</Table.Th>
-              <Table.Th></Table.Th>
+              <Table.Th aria-label={t("Action")} />
             </Table.Tr>
           </Table.Thead>
 
diff --git a/apps/client/src/features/home/components/created-by-me.tsx b/apps/client/src/features/home/components/created-by-me.tsx
index 70137b10..99051357 100644
--- a/apps/client/src/features/home/components/created-by-me.tsx
+++ b/apps/client/src/features/home/components/created-by-me.tsx
@@ -4,7 +4,7 @@ import {
   UnstyledButton,
   Badge,
   Table,
-  ActionIcon,
+  ThemeIcon,
   Button,
 } from "@mantine/core";
 import { Link } from "react-router-dom";
@@ -61,13 +61,13 @@ export default function CreatedByMe({ spaceId }: Props) {
                   >
                     <Group wrap="nowrap">
                       {page.icon || (
-                        <ActionIcon
+                        <ThemeIcon
                           variant="transparent"
                           color="gray"
                           size={18}
                         >
                           <IconFileDescription size={18} />
-                        </ActionIcon>
+                        </ThemeIcon>
                       )}
                       <Text fw={500} size="md" lineClamp={1}>
                         {page.title || t("Untitled")}
diff --git a/apps/client/src/features/home/components/favorites-pages.tsx b/apps/client/src/features/home/components/favorites-pages.tsx
index eb87216e..aed8e653 100644
--- a/apps/client/src/features/home/components/favorites-pages.tsx
+++ b/apps/client/src/features/home/components/favorites-pages.tsx
@@ -4,7 +4,7 @@ import {
   UnstyledButton,
   Badge,
   Table,
-  ActionIcon,
+  ThemeIcon,
   Button,
 } from "@mantine/core";
 import { Link } from "react-router-dom";
@@ -62,13 +62,13 @@ export default function FavoritesPages({ spaceId }: Props) {
                     >
                       <Group wrap="nowrap">
                         {fav.page.icon || (
-                          <ActionIcon
+                          <ThemeIcon
                             variant="transparent"
                             color="gray"
                             size={18}
                           >
                             <IconFileDescription size={18} />
-                          </ActionIcon>
+                          </ThemeIcon>
                         )}
                         <Text fw={500} size="md" lineClamp={1}>
                           {fav.page.title || t("Untitled")}
diff --git a/apps/client/src/features/notification/components/notification-popover.tsx b/apps/client/src/features/notification/components/notification-popover.tsx
index 161ac1e6..751b9edf 100644
--- a/apps/client/src/features/notification/components/notification-popover.tsx
+++ b/apps/client/src/features/notification/components/notification-popover.tsx
@@ -58,6 +58,9 @@ export function NotificationPopover() {
             variant="subtle"
             color="dark"
             size="sm"
+            aria-label={t("Notifications")}
+            aria-haspopup="dialog"
+            aria-expanded={opened}
             onClick={() => setOpened((o) => !o)}
           >
             <Indicator
diff --git a/apps/client/src/features/page-history/components/history-modal.tsx b/apps/client/src/features/page-history/components/history-modal.tsx
index dfd43cf1..08f05c9e 100644
--- a/apps/client/src/features/page-history/components/history-modal.tsx
+++ b/apps/client/src/features/page-history/components/history-modal.tsx
@@ -22,6 +22,7 @@ export default function HistoryModal({ pageId, pageTitle }: Props) {
         opened={isModalOpen}
         onClose={() => setModalOpen(false)}
         fullScreen
+        aria-label={t("Page history")}
       >
         <Modal.Overlay />
         <Modal.Content style={{ overflow: "hidden" }}>
@@ -49,6 +50,7 @@ export default function HistoryModal({ pageId, pageTitle }: Props) {
       size={1400}
       opened={isModalOpen}
       onClose={() => setModalOpen(false)}
+      aria-label={t("Page history")}
     >
       <Modal.Overlay />
       <Modal.Content style={{ overflow: "hidden" }}>
diff --git a/apps/client/src/features/page/components/breadcrumbs/breadcrumb.tsx b/apps/client/src/features/page/components/breadcrumbs/breadcrumb.tsx
index 11507e40..d02ba6e9 100644
--- a/apps/client/src/features/page/components/breadcrumbs/breadcrumb.tsx
+++ b/apps/client/src/features/page/components/breadcrumbs/breadcrumb.tsx
@@ -19,6 +19,7 @@ import { buildPageUrl } from "@/features/page/page.utils.ts";
 import { usePageQuery } from "@/features/page/queries/page-query.ts";
 import { extractPageSlugId } from "@/lib";
 import { useMediaQuery } from "@mantine/hooks";
+import { useTranslation } from "react-i18next";
 
 function getTitle(name: string, icon: string) {
   if (icon) {
@@ -28,6 +29,7 @@ function getTitle(name: string, icon: string) {
 }
 
 export default function Breadcrumb() {
+  const { t } = useTranslation();
   const treeData = useAtomValue(treeDataAtom);
   const [breadcrumbNodes, setBreadcrumbNodes] = useState<
     SpaceTreeNode[] | null
@@ -80,7 +82,7 @@ export default function Breadcrumb() {
     ));
 
   const renderAnchor = useCallback(
-    (node: SpaceTreeNode) => (
+    (node: SpaceTreeNode, isCurrent = false) => (
       <Tooltip label={node.name} key={node.id}>
         <Anchor
           component={Link}
@@ -89,6 +91,7 @@ export default function Breadcrumb() {
           fz="sm"
           key={node.id}
           className={classes.truncatedText}
+          aria-current={isCurrent ? "page" : undefined}
         >
           {getTitle(node.name, node.icon)}
         </Anchor>
@@ -115,7 +118,11 @@ export default function Breadcrumb() {
           key="hidden-nodes"
         >
           <Popover.Target>
-            <ActionIcon color="gray" variant="transparent">
+            <ActionIcon
+              color="gray"
+              variant="transparent"
+              aria-label={t("Show hidden breadcrumbs")}
+            >
               <IconDots size={20} stroke={2} />
             </ActionIcon>
           </Popover.Target>
@@ -124,11 +131,13 @@ export default function Breadcrumb() {
           </Popover.Dropdown>
         </Popover>,
         //renderAnchor(secondLastNode),
-        renderAnchor(lastNode),
+        renderAnchor(lastNode, true),
       ];
     }
 
-    return breadcrumbNodes.map(renderAnchor);
+    return breadcrumbNodes.map((node, i) =>
+      renderAnchor(node, i === breadcrumbNodes.length - 1),
+    );
   };
 
   const getMobileBreadcrumbItems = () => {
@@ -144,8 +153,12 @@ export default function Breadcrumb() {
           key="mobile-hidden-nodes"
         >
           <Popover.Target>
-            <Tooltip label="Breadcrumbs">
-              <ActionIcon color="gray" variant="transparent">
+            <Tooltip label={t("Breadcrumbs")}>
+              <ActionIcon
+                color="gray"
+                variant="transparent"
+                aria-label={t("Breadcrumbs")}
+              >
                 <IconCornerDownRightDouble size={20} stroke={2} />
               </ActionIcon>
             </Tooltip>
@@ -157,16 +170,18 @@ export default function Breadcrumb() {
       ];
     }
 
-    return breadcrumbNodes.map(renderAnchor);
+    return breadcrumbNodes.map((node, i) =>
+      renderAnchor(node, i === breadcrumbNodes.length - 1),
+    );
   };
 
   return (
-    <div className={classes.breadcrumbDiv}>
+    <nav aria-label={t("Breadcrumb")} className={classes.breadcrumbDiv}>
       {breadcrumbNodes && (
         <Breadcrumbs className={classes.breadcrumbs}>
           {isMobile ? getMobileBreadcrumbItems() : getBreadcrumbItems()}
         </Breadcrumbs>
       )}
-    </div>
+    </nav>
   );
 }
diff --git a/apps/client/src/features/page/components/header/page-header-menu.tsx b/apps/client/src/features/page/components/header/page-header-menu.tsx
index 9e4b7209..81c25e82 100644
--- a/apps/client/src/features/page/components/header/page-header-menu.tsx
+++ b/apps/client/src/features/page/components/header/page-header-menu.tsx
@@ -1,4 +1,4 @@
-import { ActionIcon, Group, Menu, Text, Tooltip } from "@mantine/core";
+import { ActionIcon, Group, Menu, Text, ThemeIcon, Tooltip } from "@mantine/core";
 import {
   IconArrowRight,
   IconArrowsHorizontal,
@@ -99,6 +99,7 @@ export default function PageHeaderMenu({ readOnly }: PageHeaderMenuProps) {
         <ActionIcon
           variant="subtle"
           color="dark"
+          aria-label={t("Comments")}
           onClick={() => toggleAside("comments")}
         >
           <IconMessage size={20} stroke={2} />
@@ -109,6 +110,7 @@ export default function PageHeaderMenu({ readOnly }: PageHeaderMenuProps) {
         <ActionIcon
           variant="subtle"
           color="dark"
+          aria-label={t("Table of contents")}
           onClick={() => toggleAside("toc")}
         >
           <IconList size={20} stroke={2} />
@@ -205,7 +207,11 @@ function PageActionMenu({ readOnly }: PageActionMenuProps) {
         arrowPosition="center"
       >
         <Menu.Target>
-          <ActionIcon variant="subtle" color="dark">
+          <ActionIcon
+            variant="subtle"
+            color="dark"
+            aria-label={t("Page actions")}
+          >
             <IconDots size={20} />
           </ActionIcon>
         </Menu.Target>
@@ -416,9 +422,15 @@ function ConnectionWarning() {
       openDelay={250}
       withArrow
     >
-      <ActionIcon variant="default" c="red" style={{ border: "none" }}>
+      <ThemeIcon
+        variant="default"
+        c="red"
+        role="status"
+        aria-label={t("Real-time editor connection lost. Retrying...")}
+        style={{ border: "none" }}
+      >
         <IconWifiOff size={20} stroke={2} />
-      </ActionIcon>
+      </ThemeIcon>
     </Tooltip>
   );
 }
diff --git a/apps/client/src/features/page/components/page-import-modal.tsx b/apps/client/src/features/page/components/page-import-modal.tsx
index c1c12dc4..3283ff79 100644
--- a/apps/client/src/features/page/components/page-import-modal.tsx
+++ b/apps/client/src/features/page/components/page-import-modal.tsx
@@ -67,7 +67,7 @@ export default function PageImportModal({
         <Modal.Content style={{ overflow: "hidden" }}>
           <Modal.Header py={0}>
             <Modal.Title fw={500}>{t("Import pages")}</Modal.Title>
-            <Modal.CloseButton />
+            <Modal.CloseButton aria-label={t("Close")} />
           </Modal.Header>
           <Modal.Body>
             <ImportFormatSelection spaceId={spaceId} onClose={onClose} />
@@ -332,7 +332,15 @@ function ImportFormatSelection({ spaceId, onClose }: ImportFormatSelection) {
   return (
     <>
       <SimpleGrid cols={2}>
-        <FileButton onChange={handleFileUpload} accept=".md" multiple resetRef={markdownFileRef}>
+        <FileButton
+          onChange={handleFileUpload}
+          accept=".md"
+          multiple
+          resetRef={markdownFileRef}
+          inputProps={{
+            "aria-label": t("Choose {{format}} file", { format: "Markdown" }),
+          }}
+        >
           {(props) => (
             <Button
               justify="start"
@@ -345,7 +353,15 @@ function ImportFormatSelection({ spaceId, onClose }: ImportFormatSelection) {
           )}
         </FileButton>
 
-        <FileButton onChange={handleFileUpload} accept="text/html" multiple resetRef={htmlFileRef}>
+        <FileButton
+          onChange={handleFileUpload}
+          accept="text/html"
+          multiple
+          resetRef={htmlFileRef}
+          inputProps={{
+            "aria-label": t("Choose {{format}} file", { format: "HTML" }),
+          }}
+        >
           {(props) => (
             <Button
               justify="start"
@@ -363,6 +379,9 @@ function ImportFormatSelection({ spaceId, onClose }: ImportFormatSelection) {
           accept=".docx"
           multiple
           resetRef={docxFileRef}
+          inputProps={{
+            "aria-label": t("Choose {{format}} file", { format: "Word (DOCX)" }),
+          }}
         >
           {(props) => (
             <Tooltip
@@ -387,6 +406,9 @@ function ImportFormatSelection({ spaceId, onClose }: ImportFormatSelection) {
           accept=".pdf"
           multiple
           resetRef={pdfFileRef}
+          inputProps={{
+            "aria-label": t("Choose {{format}} file", { format: "PDF" }),
+          }}
         >
           {(props) => (
             <Tooltip
@@ -410,6 +432,9 @@ function ImportFormatSelection({ spaceId, onClose }: ImportFormatSelection) {
           onChange={(file) => handleZipUpload(file, "notion")}
           accept="application/zip"
           resetRef={notionFileRef}
+          inputProps={{
+            "aria-label": t("Choose {{format}} file", { format: "Notion" }),
+          }}
         >
           {(props) => (
             <Button
@@ -426,6 +451,9 @@ function ImportFormatSelection({ spaceId, onClose }: ImportFormatSelection) {
           onChange={(file) => handleZipUpload(file, "confluence")}
           accept="application/zip"
           resetRef={confluenceFileRef}
+          inputProps={{
+            "aria-label": t("Choose {{format}} file", { format: "Confluence" }),
+          }}
         >
           {(props) => (
             <Tooltip
@@ -463,6 +491,9 @@ function ImportFormatSelection({ spaceId, onClose }: ImportFormatSelection) {
             onChange={(file) => handleZipUpload(file, "generic")}
             accept="application/zip"
             resetRef={zipFileRef}
+            inputProps={{
+              "aria-label": t("Choose {{format}} file", { format: "ZIP" }),
+            }}
           >
             {(props) => (
               <Group justify="center">
diff --git a/apps/client/src/features/page/trash/components/trash-page-content-modal.tsx b/apps/client/src/features/page/trash/components/trash-page-content-modal.tsx
index ef35b02d..c9aad622 100644
--- a/apps/client/src/features/page/trash/components/trash-page-content-modal.tsx
+++ b/apps/client/src/features/page/trash/components/trash-page-content-modal.tsx
@@ -19,7 +19,7 @@ export default function TrashPageContentModal({
   const title = pageTitle || t("Untitled");
 
   return (
-    <Modal.Root size={1200} opened={opened} onClose={onClose}>
+    <Modal.Root size={1200} opened={opened} onClose={onClose} aria-label={t("Preview")}>
       <Modal.Overlay />
       <Modal.Content style={{ overflow: "hidden" }}>
         <Modal.Header>
diff --git a/apps/client/src/features/page/trash/components/trash.tsx b/apps/client/src/features/page/trash/components/trash.tsx
index ad2ba500..de7e7ca4 100644
--- a/apps/client/src/features/page/trash/components/trash.tsx
+++ b/apps/client/src/features/page/trash/components/trash.tsx
@@ -129,7 +129,7 @@ export default function Trash() {
                   <Table.Th style={{ whiteSpace: "nowrap" }}>
                     {t("Deleted at")}
                   </Table.Th>
-                  <Table.Th></Table.Th>
+                  <Table.Th aria-label={t("Action")} />
                 </Table.Tr>
               </Table.Thead>
               <Table.Tbody>
diff --git a/apps/client/src/features/page/tree/components/space-tree.tsx b/apps/client/src/features/page/tree/components/space-tree.tsx
index ee4d7745..df5b9a42 100644
--- a/apps/client/src/features/page/tree/components/space-tree.tsx
+++ b/apps/client/src/features/page/tree/components/space-tree.tsx
@@ -458,6 +458,8 @@ interface CreateNodeProps {
 }
 
 function CreateNode({ node, treeApi, onExpandTree }: CreateNodeProps) {
+  const { t } = useTranslation();
+
   function handleCreate() {
     if (node.data.hasChildren && node.children.length === 0) {
       node.toggle();
@@ -475,6 +477,7 @@ function CreateNode({ node, treeApi, onExpandTree }: CreateNodeProps) {
     <ActionIcon
       variant="transparent"
       c="gray"
+      aria-label={t("Create page")}
       onClick={(e) => {
         e.preventDefault();
         e.stopPropagation();
@@ -591,6 +594,7 @@ function NodeMenu({ node, treeApi, spaceId }: NodeMenuProps) {
           <ActionIcon
             variant="transparent"
             c="gray"
+            aria-label={t("Page menu")}
             onClick={(e) => {
               e.preventDefault();
               e.stopPropagation();
@@ -725,6 +729,8 @@ interface PageArrowProps {
 }
 
 function PageArrow({ node, onExpandTree }: PageArrowProps) {
+  const { t } = useTranslation();
+
   useEffect(() => {
     if (node.isOpen) {
       onExpandTree();
@@ -736,6 +742,8 @@ function PageArrow({ node, onExpandTree }: PageArrowProps) {
       size={20}
       variant="subtle"
       c="gray"
+      aria-label={node.isOpen ? t("Collapse") : t("Expand")}
+      aria-expanded={node.isInternal ? node.isOpen : undefined}
       onClick={(e) => {
         e.preventDefault();
         e.stopPropagation();
diff --git a/apps/client/src/features/search/components/search-control.tsx b/apps/client/src/features/search/components/search-control.tsx
index 3a689e28..518128d4 100644
--- a/apps/client/src/features/search/components/search-control.tsx
+++ b/apps/client/src/features/search/components/search-control.tsx
@@ -47,6 +47,7 @@ export function SearchMobileControl({ onSearch }: SearchMobileControlProps) {
       <ActionIcon
         variant="subtle"
         color="dark"
+        aria-label={t("Search")}
         onClick={onSearch}
         size="sm"
       >
diff --git a/apps/client/src/features/session/components/session-list.tsx b/apps/client/src/features/session/components/session-list.tsx
index 18a30458..6549a6e5 100644
--- a/apps/client/src/features/session/components/session-list.tsx
+++ b/apps/client/src/features/session/components/session-list.tsx
@@ -37,7 +37,7 @@ export default function SessionList() {
           <Table.Tr>
             <Table.Th>{t("Device Name")}</Table.Th>
             <Table.Th>{t("Last Active")}</Table.Th>
-            <Table.Th />
+            <Table.Th aria-label={t("Action")} />
           </Table.Tr>
         </Table.Thead>
         <Table.Tbody>
@@ -94,7 +94,7 @@ export default function SessionList() {
           <Table.Tr>
             <Table.Th>{t("Device Name")}</Table.Th>
             <Table.Th>{t("Last Active")}</Table.Th>
-            {otherSessions.length > 0 && <Table.Th />}
+            {otherSessions.length > 0 && <Table.Th aria-label={t("Action")} />}
           </Table.Tr>
         </Table.Thead>
         <Table.Tbody>
diff --git a/apps/client/src/features/share/components/share-action-menu.tsx b/apps/client/src/features/share/components/share-action-menu.tsx
index 52dad0da..05995128 100644
--- a/apps/client/src/features/share/components/share-action-menu.tsx
+++ b/apps/client/src/features/share/components/share-action-menu.tsx
@@ -75,7 +75,7 @@ export default function ShareActionMenu({ share }: Props) {
         arrowPosition="center"
       >
         <Menu.Target>
-          <ActionIcon variant="subtle" c="gray">
+          <ActionIcon variant="subtle" c="gray" aria-label={t("More options")}>
             <IconDots size={20} stroke={2} />
           </ActionIcon>
         </Menu.Target>
diff --git a/apps/client/src/features/share/components/share-shell.tsx b/apps/client/src/features/share/components/share-shell.tsx
index 64881ca2..bba226fe 100644
--- a/apps/client/src/features/share/components/share-shell.tsx
+++ b/apps/client/src/features/share/components/share-shell.tsx
@@ -148,6 +148,7 @@ export default function ShareShell({
                   onClick={toggleTocMobile}
                   hiddenFrom="sm"
                   size="sm"
+                  aria-label={t("Table of contents")}
                 >
                   <IconList size={20} stroke={2} />
                 </ActionIcon>
@@ -157,6 +158,7 @@ export default function ShareShell({
                 <ActionIcon
                   variant="default"
                   style={{ border: "none" }}
+                  aria-label={t("Table of contents")}
                   onClick={toggleToc}
                   visibleFrom="sm"
                   size="sm"
diff --git a/apps/client/src/features/space/components/space-members.tsx b/apps/client/src/features/space/components/space-members.tsx
index 7ee35a17..99232822 100644
--- a/apps/client/src/features/space/components/space-members.tsx
+++ b/apps/client/src/features/space/components/space-members.tsx
@@ -143,7 +143,7 @@ export default function SpaceMembersList({
               <Table.Tr>
                 <Table.Th>{t("Member")}</Table.Th>
                 <Table.Th>{t("Role")}</Table.Th>
-                <Table.Th></Table.Th>
+                <Table.Th aria-label={t("Action")} />
               </Table.Tr>
             </Table.Thead>
 
diff --git a/apps/client/src/features/space/components/spaces-page/all-spaces-list.tsx b/apps/client/src/features/space/components/spaces-page/all-spaces-list.tsx
index f8ca2bf7..f0dc9b3a 100644
--- a/apps/client/src/features/space/components/spaces-page/all-spaces-list.tsx
+++ b/apps/client/src/features/space/components/spaces-page/all-spaces-list.tsx
@@ -49,15 +49,15 @@ function WatchButton({ spaceId, watchedIds, size = 16 }: { spaceId: string; watc
     }
   };
 
+  const label = isWatching ? t("Stop watching space") : t("Watch space");
+
   return (
-    <Tooltip
-      label={isWatching ? t("Stop watching space") : t("Watch space")}
-      openDelay={250}
-      withArrow
-    >
+    <Tooltip label={label} openDelay={250} withArrow>
       <ActionIcon
         variant="subtle"
         color={isWatching ? "blue" : "gray"}
+        aria-label={label}
+        aria-pressed={isWatching}
         onClick={handleToggle}
         loading={isPending}
       >
@@ -111,7 +111,7 @@ export default function AllSpacesList({
             <Table.Tr>
               <Table.Th>{t("Space")}</Table.Th>
               <Table.Th>{t("Members")}</Table.Th>
-              <Table.Th w={130}></Table.Th>
+              <Table.Th w={130} aria-label={t("Action")} />
             </Table.Tr>
           </Table.Thead>
 
@@ -168,7 +168,11 @@ export default function AllSpacesList({
                       <WatchButton spaceId={space.id} watchedIds={watchedIds} size={16} />
                       <Menu position="bottom-end">
                         <Menu.Target>
-                          <ActionIcon variant="subtle" color="gray">
+                          <ActionIcon
+                            variant="subtle"
+                            color="gray"
+                            aria-label={t("Space menu")}
+                          >
                             <IconDots size={16} />
                           </ActionIcon>
                         </Menu.Target>
diff --git a/apps/client/src/features/workspace/components/members/components/members-action-menu.tsx b/apps/client/src/features/workspace/components/members/components/members-action-menu.tsx
index e9376dda..ce1c588a 100644
--- a/apps/client/src/features/workspace/components/members/components/members-action-menu.tsx
+++ b/apps/client/src/features/workspace/components/members/components/members-action-menu.tsx
@@ -83,7 +83,11 @@ export default function MemberActionMenu({ userId, deactivatedAt }: Props) {
         arrowPosition="center"
       >
         <Menu.Target>
-          <ActionIcon variant="subtle" c="gray">
+          <ActionIcon
+            variant="subtle"
+            c="gray"
+            aria-label={t("Member actions")}
+          >
             <IconDots size={20} stroke={2} />
           </ActionIcon>
         </Menu.Target>
diff --git a/apps/client/src/features/workspace/components/members/components/workspace-invites-table.tsx b/apps/client/src/features/workspace/components/members/components/workspace-invites-table.tsx
index 0a7b52dd..54159c98 100644
--- a/apps/client/src/features/workspace/components/members/components/workspace-invites-table.tsx
+++ b/apps/client/src/features/workspace/components/members/components/workspace-invites-table.tsx
@@ -34,6 +34,7 @@ export default function WorkspaceInvitesTable() {
               <Table.Th>{t("Email")}</Table.Th>
               <Table.Th>{t("Role")}</Table.Th>
               <Table.Th>{t("Date")}</Table.Th>
+              <Table.Th aria-label={t("Action")} />
             </Table.Tr>
           </Table.Thead>
 
diff --git a/apps/client/src/features/workspace/components/members/components/workspace-members-table.tsx b/apps/client/src/features/workspace/components/members/components/workspace-members-table.tsx
index f302fc48..76a32ffb 100644
--- a/apps/client/src/features/workspace/components/members/components/workspace-members-table.tsx
+++ b/apps/client/src/features/workspace/components/members/components/workspace-members-table.tsx
@@ -61,6 +61,7 @@ export default function WorkspaceMembersTable() {
               <Table.Th>{t("User")}</Table.Th>
               <Table.Th>{t("Status")}</Table.Th>
               <Table.Th>{t("Role")}</Table.Th>
+              <Table.Th aria-label={t("Action")} />
             </Table.Tr>
           </Table.Thead>
 
diff --git a/apps/client/src/pages/favorites/favorites-page.tsx b/apps/client/src/pages/favorites/favorites-page.tsx
index 7e9aa626..5d99531d 100644
--- a/apps/client/src/pages/favorites/favorites-page.tsx
+++ b/apps/client/src/pages/favorites/favorites-page.tsx
@@ -6,7 +6,7 @@ import {
   Table,
   Container,
   Title,
-  ActionIcon,
+  ThemeIcon,
   Button,
 } from "@mantine/core";
 import { Link } from "react-router-dom";
@@ -71,13 +71,13 @@ export default function FavoritesPage() {
                         >
                           <Group wrap="nowrap">
                             {fav.page.icon || (
-                              <ActionIcon
+                              <ThemeIcon
                                 variant="transparent"
                                 color="gray"
                                 size={18}
                               >
                                 <IconFileDescription size={18} />
-                              </ActionIcon>
+                              </ThemeIcon>
                             )}
                             <Text fw={500} size="md" lineClamp={1}>
                               {fav.page.title || t("Untitled")}
diff --git a/apps/client/src/theme.ts b/apps/client/src/theme.ts
index 4c592dc4..ad88337e 100644
--- a/apps/client/src/theme.ts
+++ b/apps/client/src/theme.ts
@@ -71,7 +71,7 @@ export const mantineCssResolver: CSSVariablesResolver = (theme) => ({
     "--input-error-size": theme.fontSizes.sm,
   },
   light: {
-    "--mantine-color-dimmed": "#6b7280",
+    "--mantine-color-dimmed": "#4b5563",
     "--mantine-color-dark-light-color": "#4e5359",
     "--mantine-color-dark-light-hover": "var(--mantine-color-gray-light-hover)",
   },