Convert AdminPanel to modal overlay with close button and add admin dashboard menu option

Refactored AdminPanel from inline component to modal overlay triggered from user menu. Added `open` and `onClose` props to control visibility, wrapped panel in modal overlay with backdrop click-to-close behavior, and added close button to header. Implemented admin-only menu item in TopBar user dropdown with shield icon and role label. Added state management for dashboard visibility in App.jsx with proper cleanup

frontend/src/App.jsx

@@ -61,6 +61,7 @@ export default function App() {
   const [chipOpen, setChipOpen] = useState(false);
   const [chipEntry, setChipEntry] = useState(null);
   const [userMenuOpen, setUserMenuOpen] = useState(false);
+  const [adminOpen, setAdminOpen] = useState(false);
 
   const [pwOpen, setPwOpen] = useState(false);
   const [pw1, setPw1] = useState("");
@@ -689,11 +690,15 @@ export default function App() {
           openPwModal={openPwModal}
           openDesignModal={openDesignModal}
           openStatsModal={openStatsModal}
+          openAdminPanel={() => {
+            setAdminOpen(true);
+            setUserMenuOpen(false);
+          }}
           doLogout={doLogout}
           onOpenNewGame={() => setNewGameOpen(true)}
         />
 
-        {me.role === "admin" && <AdminPanel />}
+        <AdminPanel open={me.role === "admin" && adminOpen} onClose={() => setAdminOpen(false)} />
 
         <GamePickerCard
           games={games}

frontend/src/components/AdminPanel.jsx

@@ -4,10 +4,10 @@ import { styles } from "../styles/styles";
 import { stylesTokens } from "../styles/theme";
 import { createPortal } from "react-dom";
 
-export default function AdminPanel() {
+export default function AdminPanel({ open: dashboardOpen = false, onClose }) {
   const [users, setUsers] = useState([]);
 
-  const [open, setOpen] = useState(false);
+  const [userModalOpen, setUserModalOpen] = useState(false);
   const [displayName, setDisplayName] = useState("");
   const [email, setEmail] = useState("");
   const [password, setPassword] = useState("");
@@ -15,7 +15,7 @@ export default function AdminPanel() {
   const [msg, setMsg] = useState("");
 
   useEffect(() => {
-    if (!open) return;
+    if (!dashboardOpen && !userModalOpen) return;
 
     const prev = document.body.style.overflow;
     document.body.style.overflow = "hidden";
@@ -23,7 +23,14 @@ export default function AdminPanel() {
     return () => {
       document.body.style.overflow = prev;
     };
-  }, [open]);
+  }, [dashboardOpen, userModalOpen]);
+
+  useEffect(() => {
+    if (!dashboardOpen) {
+      setUserModalOpen(false);
+      setMsg("");
+    }
+  }, [dashboardOpen]);
 
   const loadUsers = async () => {
     const u = await api("/admin/users");
@@ -51,7 +58,7 @@ export default function AdminPanel() {
       setMsg("✅ User erstellt.");
       await loadUsers();
       resetForm();
-      setOpen(false);
+      setUserModalOpen(false);
     } catch (e) {
       setMsg("❌ Fehler: " + (e?.message || "unknown"));
     }
@@ -68,17 +75,29 @@ export default function AdminPanel() {
   };
 
   const closeModal = () => {
-    setOpen(false);
+    setUserModalOpen(false);
     setMsg("");
   };
 
-  return (
-    <div style={styles.adminWrap}>
+  if (!dashboardOpen) return null;
+
+  return createPortal(
+    <div style={styles.modalOverlay} onMouseDown={onClose}>
+      <div
+        style={{ ...styles.modalCard, width: "min(760px, 100%)", padding: 0 }}
+        onMouseDown={(e) => e.stopPropagation()}
+      >
+        <div style={{ ...styles.adminWrap, marginTop: 0, border: "none", boxShadow: "none", backdropFilter: "none", WebkitBackdropFilter: "none" }}>
       <div style={styles.adminTop}>
         <div style={styles.adminTitle}>Admin Dashboard</div>
-        <button onClick={() => setOpen(true)} style={styles.primaryBtn}>
+        <div style={{ display: "flex", gap: 8, alignItems: "center" }}>
+        <button onClick={() => setUserModalOpen(true)} style={styles.primaryBtn}>
           + User anlegen
         </button>
+        <button onClick={onClose} style={styles.modalCloseBtn} aria-label="Dashboard schließen">
+          ✕
+        </button>
+        </div>
       </div>
 
       <div style={{ marginTop: 12, fontWeight: 900, color: stylesTokens.textGold }}>
@@ -125,7 +144,7 @@ export default function AdminPanel() {
         ))}
       </div>
 
-      {open &&
+      {userModalOpen &&
         createPortal(
           <div style={styles.modalOverlay} onMouseDown={closeModal}>
             <div style={styles.modalCard} onMouseDown={(e) => e.stopPropagation()}>
@@ -200,6 +219,9 @@ export default function AdminPanel() {
           document.body
         )
       }
-    </div>
+        </div>
+      </div>
+    </div>,
+    document.body
   );
 }

frontend/src/components/TopBar.jsx

@@ -9,10 +9,13 @@ export default function TopBar({
   openPwModal,
   openDesignModal,
   openStatsModal,
+  openAdminPanel,
   doLogout,
   onOpenNewGame,
 }) {
   const displayName = me ? ((me.display_name || "").trim() || me.email) : "";
+  const isAdmin = me?.role === "admin";
+  const roleLabel = isAdmin ? "Admin" : "User";
 
   return (
     <div className="hp-topbar" style={styles.topBar}>
@@ -31,8 +34,8 @@ export default function TopBar({
             style={styles.userBtn}
             title="User Menü"
           >
-            <span style={{ fontSize: 16 }}>👤</span>
-            <span>User</span>
+            <span style={{ fontSize: 16 }}>{isAdmin ? "🛡️" : "👤"}</span>
+            <span>{roleLabel}</span>
             <span style={{ opacity: 0.7 }}>▾</span>
           </button>
 
@@ -60,6 +63,21 @@ export default function TopBar({
                 Statistik
               </button>
 
+              {isAdmin && (
+                <>
+                  <div style={styles.userDropdownDivider} />
+                  <button
+                    onClick={() => {
+                      setUserMenuOpen(false);
+                      openAdminPanel?.();
+                    }}
+                    style={styles.userDropdownItem}
+                  >
+                    Admin Dashboard
+                  </button>
+                </>
+              )}
+
               <div style={styles.userDropdownDivider} />
 
               <button onClick={openPwModal} style={styles.userDropdownItem}>