diff --git a/messages/de.json b/messages/de.json
index a36eb32fe..80152dd7d 100644
--- a/messages/de.json
+++ b/messages/de.json
@@ -41,7 +41,9 @@
     "copy": "Kopieren",
     "copyDetails": "Details kopieren",
     "retry": "Erneut versuchen",
-    "reportIssue": "Fehler melden"
+    "reportIssue": "Fehler melden",
+    "showPassword": "Passwort anzeigen",
+    "hidePassword": "Passwort verbergen"
   },
   "doctorReport": {
     "title": "Gesundheitsbericht",
diff --git a/messages/en.json b/messages/en.json
index 4a7ad44e0..dfe3565dc 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -41,7 +41,9 @@
     "copy": "Copy",
     "copyDetails": "Copy details",
     "retry": "Retry",
-    "reportIssue": "Report issue"
+    "reportIssue": "Report issue",
+    "showPassword": "Show password",
+    "hidePassword": "Hide password"
   },
   "doctorReport": {
     "title": "Health Report",
diff --git a/src/app/auth/login/page.tsx b/src/app/auth/login/page.tsx
index befa9f494..ed1f25890 100644
--- a/src/app/auth/login/page.tsx
+++ b/src/app/auth/login/page.tsx
@@ -217,7 +217,12 @@ export default function LoginPage() {
               {t("auth.noAccount")}{" "}
               <Link
                 href="/auth/register"
-                className="text-primary hover:underline"
+                // axe-core `link-in-text-block` requires a visible
+                // distinction beyond colour alone (WCAG 1.4.1). Forcing
+                // the underline always-on instead of `hover:underline`
+                // satisfies the rule without changing the visual after
+                // hover.
+                className="text-primary underline"
               >
                 {t("auth.register")}
               </Link>
diff --git a/src/app/page.tsx b/src/app/page.tsx
index ca7a65257..116ff20bf 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -363,7 +363,11 @@ export default function DashboardPage() {
         </div>
         <DropdownMenu>
           <DropdownMenuTrigger asChild>
-            <Button size="sm">
+            {/* WCAG 2.5.5 — touch targets must be ≥44×44 CSS px on mobile.
+                `size="sm"` (h-8 = 32px) was below threshold; the explicit
+                min-h-11 ensures we hit 44px on the Pixel 5 viewport while
+                keeping the desktop visual unchanged. */}
+            <Button size="sm" className="min-h-11">
               <Plus className="mr-1 h-4 w-4" />
               {t("common.add")}
             </Button>
diff --git a/src/components/layout/top-bar.tsx b/src/components/layout/top-bar.tsx
index 2bd3cc7f9..4bf0fa2fc 100644
--- a/src/components/layout/top-bar.tsx
+++ b/src/components/layout/top-bar.tsx
@@ -59,7 +59,10 @@ export function TopBar() {
           <div className="bg-muted h-4 w-20 animate-pulse rounded" />
         ) : user ? (
           <DropdownMenu>
-            <DropdownMenuTrigger className="text-muted-foreground hover:text-foreground flex items-center gap-1.5 rounded-md px-2 py-1.5 text-sm transition-colors focus:outline-none">
+            <DropdownMenuTrigger
+              aria-label={t("nav.userMenu")}
+              className="text-muted-foreground hover:text-foreground flex items-center gap-1.5 rounded-md px-2 py-1.5 text-sm transition-colors focus:outline-none"
+            >
               <User className="h-4 w-4" />
               <span className="hidden sm:inline">{user.username}</span>
               <ChevronDown className="h-3 w-3 opacity-60" />
diff --git a/src/components/settings/password-input.tsx b/src/components/settings/password-input.tsx
index d4f915afb..0c44a1040 100644
--- a/src/components/settings/password-input.tsx
+++ b/src/components/settings/password-input.tsx
@@ -4,6 +4,7 @@ import { useState } from "react";
 import { Eye, EyeOff } from "lucide-react";
 
 import { Input } from "@/components/ui/input";
+import { useTranslations } from "@/lib/i18n/context";
 
 /**
  * Password input with a built-in show/hide toggle. Extracted from the legacy
@@ -13,12 +14,18 @@ import { Input } from "@/components/ui/input";
  */
 export function PasswordInput(props: React.ComponentProps<typeof Input>) {
   const [visible, setVisible] = useState(false);
+  const { t } = useTranslations();
   return (
     <div className="relative">
       <Input {...props} type={visible ? "text" : "password"} />
       <button
         type="button"
         tabIndex={-1}
+        // WCAG 2.1.2 button-name — the icon-only toggle has no visible text
+        // and screen readers fall back to the icon's filename otherwise.
+        aria-label={
+          visible ? t("common.hidePassword") : t("common.showPassword")
+        }
         onClick={() => setVisible((v) => !v)}
         className="text-muted-foreground hover:text-foreground absolute top-1/2 right-3 -translate-y-1/2"
       >