Stack admin forms to prevent overflow

frontend/src/components/AdminDashboard.jsx

@@ -122,14 +122,14 @@ function AdminDashboard() {
         <div>
           <p className="eyebrow">Adminbereich</p>
           <h2>Verwaltung</h2>
-          <p className="muted">Nutzer, externe Links und Python-Skripte zentral verwalten.</p>
+          <p className="muted">Nutzer und externe Links zentral verwalten.</p>
         </div>
       </div>
 
       <div className="admin-grid">
         <div className="admin-card">
           <h3>Neuen Nutzer anlegen</h3>
-          <div className="form-grid">
+          <div className="form-grid stacked">
             <label>
               Benutzername
               <input
@@ -203,7 +203,7 @@ function AdminDashboard() {
       <div className="admin-grid">
         <div className="admin-card">
           <h3>Externe Webseiten</h3>
-          <div className="form-grid">
+          <div className="form-grid stacked">
             <label>
               Name
               <input

frontend/src/css/admin.css

@@ -41,17 +41,22 @@
 
 .form-grid {
   display: grid;
-  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
   gap: 12px;
   margin: 12px 0 8px;
 }
 
+.form-grid.stacked {
+  grid-template-columns: 1fr;
+}
+
 .form-grid label {
   display: flex;
   flex-direction: column;
   gap: 6px;
   color: var(--muted);
   font-weight: 600;
+  word-break: break-word;
 }
 
 select {