diff --git a/frontend/src/pages/AdminHierarchyPage.jsx b/frontend/src/pages/AdminHierarchyPage.jsx
index 8193e1c..54e424f 100644
--- a/frontend/src/pages/AdminHierarchyPage.jsx
+++ b/frontend/src/pages/AdminHierarchyPage.jsx
@@ -63,55 +63,84 @@ function AdminHierarchyPage() {
   }
 
   return (
-    <div style={{
-      display: 'grid',
-      gridTemplateColumns: '400px 1fr',
-      gap: '16px',
-      padding: '16px',
-      height: 'calc(100vh - 100px)',
-      overflow: 'hidden'
-    }}>
-      {/* Left: Tree View */}
-      <div style={{
-        overflowY: 'auto',
-        border: '1px solid var(--border)',
-        borderRadius: '12px',
-        padding: '16px',
-        background: 'var(--surface)'
-      }}>
-        <h2 style={{ marginTop: 0 }}>Katalog-Hierarchie</h2>
-        {error && <div style={{ color: 'var(--danger)', marginBottom: '16px' }}>{error}</div>}
+    <>
+      <style>{`
+        .admin-hierarchy-container {
+          display: grid;
+          grid-template-columns: 1fr;
+          gap: 16px;
+          padding: 16px;
+          padding-bottom: 80px;
+        }
 
-        {hierarchy.map(fa => (
-          <FocusAreaNode
-            key={fa.id}
-            focusArea={fa}
-            expanded={expandedNodes}
-            onToggle={toggleNode}
-            onSelect={selectItem}
-            selectedId={selectedItem?.id}
-            selectedType={selectedItem?._type}
-          />
-        ))}
-      </div>
+        @media (min-width: 768px) {
+          .admin-hierarchy-container {
+            grid-template-columns: 400px 1fr;
+          }
 
-      {/* Right: Detail Panel */}
-      <div style={{
-        overflowY: 'auto',
-        border: '1px solid var(--border)',
-        borderRadius: '12px',
-        padding: '20px',
-        background: 'var(--surface)'
-      }}>
-        {selectedItem ? (
-          <DetailPanel item={selectedItem} onUpdate={loadHierarchy} />
-        ) : (
-          <div style={{ textAlign: 'center', color: 'var(--text2)', paddingTop: '60px' }}>
-            <p>← Wähle ein Element aus dem Baum</p>
+          .admin-tree-view {
+            display: block !important;
+          }
+
+          .admin-back-button {
+            display: none !important;
+          }
+        }
+
+        .admin-tree-view {
+          ${selectedItem ? 'display: none;' : 'display: block;'}
+        }
+      `}</style>
+
+      <div className="admin-hierarchy-container">
+        {/* Tree View */}
+        <div
+          className="admin-tree-view"
+          style={{
+            border: '1px solid var(--border)',
+            borderRadius: '12px',
+            padding: '16px',
+            background: 'var(--surface)'
+          }}
+        >
+          <h2 style={{ marginTop: 0 }}>Katalog-Hierarchie</h2>
+          {error && <div style={{ color: 'var(--danger)', marginBottom: '16px' }}>{error}</div>}
+
+          {hierarchy.map(fa => (
+            <FocusAreaNode
+              key={fa.id}
+              focusArea={fa}
+              expanded={expandedNodes}
+              onToggle={toggleNode}
+              onSelect={selectItem}
+              selectedId={selectedItem?.id}
+              selectedType={selectedItem?._type}
+            />
+          ))}
+        </div>
+
+        {/* Detail Panel */}
+        {selectedItem && (
+          <div
+            style={{
+              border: '1px solid var(--border)',
+              borderRadius: '12px',
+              padding: '20px',
+              background: 'var(--surface)'
+            }}
+          >
+            <button
+              className="btn admin-back-button"
+              onClick={() => setSelectedItem(null)}
+              style={{ marginBottom: '16px' }}
+            >
+              ← Zurück zur Übersicht
+            </button>
+            <DetailPanel item={selectedItem} onUpdate={loadHierarchy} />
           </div>
         )}
       </div>
-    </div>
+    </>
   )
 }
 
@@ -332,42 +361,174 @@ function FocusAreaDetail({ focusArea, onUpdate }) {
 }
 
 function StyleDirectionDetail({ styleDirection, onUpdate }) {
+  const [editing, setEditing] = useState(false)
+  const [form, setForm] = useState({
+    name: styleDirection.name,
+    abbreviation: styleDirection.abbreviation || '',
+    description: styleDirection.description || '',
+    focus_area_id: styleDirection.focus_area_id
+  })
+
+  async function handleSave() {
+    try {
+      await api.updateStyleDirection(styleDirection.id, form)
+      setEditing(false)
+      onUpdate()
+    } catch (e) {
+      alert('Fehler: ' + e.message)
+    }
+  }
+
+  async function handleDelete() {
+    if (!confirm(`Stilrichtung "${styleDirection.name}" wirklich löschen?`)) return
+    try {
+      await api.deleteStyleDirection(styleDirection.id)
+      onUpdate()
+    } catch (e) {
+      alert('Fehler: ' + e.message)
+    }
+  }
+
+  if (!editing) {
+    return (
+      <div>
+        <h2>{styleDirection.name}</h2>
+        {styleDirection.abbreviation && <p style={{ color: 'var(--text2)' }}>Kürzel: {styleDirection.abbreviation}</p>}
+        {styleDirection.description && <p style={{ color: 'var(--text2)' }}>{styleDirection.description}</p>}
+
+        {styleDirection.target_groups && styleDirection.target_groups.length > 0 && (
+          <div style={{ marginTop: '16px' }}>
+            <h3>Zugeordnete Zielgruppen</h3>
+            <ul>
+              {styleDirection.target_groups.map(tg => (
+                <li key={tg.id}>
+                  {tg.name} {tg.is_primary && <span style={{ color: 'var(--accent)' }}>★ Primär</span>}
+                </li>
+              ))}
+            </ul>
+          </div>
+        )}
+
+        <div style={{ display: 'flex', gap: '8px', marginTop: '16px' }}>
+          <button className="btn btn-primary" onClick={() => setEditing(true)}>Bearbeiten</button>
+          <button className="btn" onClick={handleDelete}>Löschen</button>
+        </div>
+      </div>
+    )
+  }
+
   return (
     <div>
-      <h2>{styleDirection.name}</h2>
-      {styleDirection.abbreviation && <p style={{ color: 'var(--text2)' }}>Kürzel: {styleDirection.abbreviation}</p>}
-      {styleDirection.description && <p style={{ color: 'var(--text2)' }}>{styleDirection.description}</p>}
-
-      {styleDirection.target_groups && styleDirection.target_groups.length > 0 && (
-        <div style={{ marginTop: '16px' }}>
-          <h3>Zugeordnete Zielgruppen</h3>
-          <ul>
-            {styleDirection.target_groups.map(tg => (
-              <li key={tg.id}>
-                {tg.name} {tg.is_primary && <span style={{ color: 'var(--accent)' }}>★ Primär</span>}
-              </li>
-            ))}
-          </ul>
-        </div>
-      )}
-
-      <button className="btn btn-primary" style={{ marginTop: '16px' }}>
-        Bearbeiten
-      </button>
+      <h2>Stilrichtung bearbeiten</h2>
+      <div className="form-row">
+        <label className="form-label">Name</label>
+        <input
+          className="form-input"
+          value={form.name}
+          onChange={e => setForm({ ...form, name: e.target.value })}
+        />
+      </div>
+      <div className="form-row">
+        <label className="form-label">Kürzel</label>
+        <input
+          className="form-input"
+          value={form.abbreviation}
+          onChange={e => setForm({ ...form, abbreviation: e.target.value })}
+        />
+      </div>
+      <div className="form-row">
+        <label className="form-label">Beschreibung</label>
+        <textarea
+          className="form-input"
+          value={form.description}
+          onChange={e => setForm({ ...form, description: e.target.value })}
+          rows={4}
+        />
+      </div>
+      <div style={{ display: 'flex', gap: '8px', marginTop: '16px' }}>
+        <button className="btn btn-primary" onClick={handleSave}>Speichern</button>
+        <button className="btn" onClick={() => setEditing(false)}>Abbrechen</button>
+      </div>
     </div>
   )
 }
 
 function TrainingTypeDetail({ trainingType, onUpdate }) {
+  const [editing, setEditing] = useState(false)
+  const [form, setForm] = useState({
+    name: trainingType.name,
+    abbreviation: trainingType.abbreviation || '',
+    description: trainingType.description || '',
+    focus_area_id: trainingType.focus_area_id
+  })
+
+  async function handleSave() {
+    try {
+      await api.updateTrainingType(trainingType.id, form)
+      setEditing(false)
+      onUpdate()
+    } catch (e) {
+      alert('Fehler: ' + e.message)
+    }
+  }
+
+  async function handleDelete() {
+    if (!confirm(`Trainingstyp "${trainingType.name}" wirklich löschen?`)) return
+    try {
+      await api.deleteTrainingType(trainingType.id)
+      onUpdate()
+    } catch (e) {
+      alert('Fehler: ' + e.message)
+    }
+  }
+
+  if (!editing) {
+    return (
+      <div>
+        <h2>{trainingType.name}</h2>
+        {trainingType.abbreviation && <p style={{ color: 'var(--text2)' }}>Kürzel: {trainingType.abbreviation}</p>}
+        {trainingType.description && <p style={{ color: 'var(--text2)' }}>{trainingType.description}</p>}
+
+        <div style={{ display: 'flex', gap: '8px', marginTop: '16px' }}>
+          <button className="btn btn-primary" onClick={() => setEditing(true)}>Bearbeiten</button>
+          <button className="btn" onClick={handleDelete}>Löschen</button>
+        </div>
+      </div>
+    )
+  }
+
   return (
     <div>
-      <h2>{trainingType.name}</h2>
-      {trainingType.abbreviation && <p style={{ color: 'var(--text2)' }}>Kürzel: {trainingType.abbreviation}</p>}
-      {trainingType.description && <p style={{ color: 'var(--text2)' }}>{trainingType.description}</p>}
-
-      <button className="btn btn-primary" style={{ marginTop: '16px' }}>
-        Bearbeiten
-      </button>
+      <h2>Trainingstyp bearbeiten</h2>
+      <div className="form-row">
+        <label className="form-label">Name</label>
+        <input
+          className="form-input"
+          value={form.name}
+          onChange={e => setForm({ ...form, name: e.target.value })}
+        />
+      </div>
+      <div className="form-row">
+        <label className="form-label">Kürzel</label>
+        <input
+          className="form-input"
+          value={form.abbreviation}
+          onChange={e => setForm({ ...form, abbreviation: e.target.value })}
+        />
+      </div>
+      <div className="form-row">
+        <label className="form-label">Beschreibung</label>
+        <textarea
+          className="form-input"
+          value={form.description}
+          onChange={e => setForm({ ...form, description: e.target.value })}
+          rows={4}
+        />
+      </div>
+      <div style={{ display: 'flex', gap: '8px', marginTop: '16px' }}>
+        <button className="btn btn-primary" onClick={handleSave}>Speichern</button>
+        <button className="btn" onClick={() => setEditing(false)}>Abbrechen</button>
+      </div>
     </div>
   )
 }