diff --git a/.claude/rules/CODING_RULES.md b/.claude/rules/CODING_RULES.md
index 542bc53..bc219fe 100644
--- a/.claude/rules/CODING_RULES.md
+++ b/.claude/rules/CODING_RULES.md
@@ -78,6 +78,62 @@ style={{color: 'var(--accent)'}}
 style={{color: '#1D9E75'}}
 ```
 
+### 6. Formular-Standard (VERBINDLICH ab 2026-04-22)
+**Alle neuen Formulare verwenden den Standard-Stil:**
+
+```jsx
+// ✅ Standard: Label oben, volle Breite, linksbündig
+<div className="form-row">
+  <label className="form-label">Feldname *</label>
+  <input
+    type="text"
+    className="form-input"
+    value={formData.field}
+    onChange={(e) => updateFormField('field', e.target.value)}
+    required
+  />
+</div>
+
+// ✅ Textarea
+<div className="form-row">
+  <label className="form-label">Beschreibung</label>
+  <textarea
+    className="form-input"
+    rows={3}
+    value={formData.description}
+    onChange={(e) => updateFormField('description', e.target.value)}
+  />
+</div>
+
+// ✅ Select
+<div className="form-row">
+  <label className="form-label">Status</label>
+  <select
+    className="form-input"
+    value={formData.status}
+    onChange={(e) => updateFormField('status', e.target.value)}
+  >
+    <option value="active">Aktiv</option>
+    <option value="inactive">Inaktiv</option>
+  </select>
+</div>
+
+// ❌ NICHT: Inline-Layout mit Label links
+// Nur für Ausnahmen (kurze Werte mit Einheit) nutzen:
+<div className="form-row--inline">
+  <label className="form-label">Dauer</label>
+  <input type="number" className="form-input" value={duration} />
+  <span className="form-unit">min</span>
+</div>
+```
+
+**Regeln:**
+- Label ist `<label>` mit Klasse `.form-label` (nicht `<div>`)
+- Input/Textarea/Select nutzen `.form-input`
+- Volle Breite (100%), linksbündig
+- Pflichtfelder mit `*` im Label kennzeichnen
+- Inline-Variante (`.form-row--inline`) nur für Ausnahmen (Zahlen mit Einheit)
+
 ## Git & Deployment
 
 ### 1. Nie direkt auf main pushen
diff --git a/frontend/src/app.css b/frontend/src/app.css
index f8092ee..a7c112c 100644
--- a/frontend/src/app.css
+++ b/frontend/src/app.css
@@ -113,25 +113,93 @@ body { font-family: var(--font); background: var(--bg); color: var(--text1); -we
 .delta-pos { color: var(--accent); }
 .delta-neg { color: var(--danger); }
 
-/* Form */
+/* Form - STANDARD: Label oben, volle Breite, linksbündig */
 .form-section { margin-bottom: 20px; }
 .form-section-title {
   font-size: 13px; font-weight: 600; color: var(--text3);
   text-transform: uppercase; letter-spacing: 0.05em;
   margin-bottom: 10px; padding-bottom: 6px; border-bottom: 1px solid var(--border);
 }
-.form-row { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--border); }
-.form-row:last-child { border-bottom: none; }
-.form-label { flex: 1; font-size: 14px; color: var(--text1); }
-.form-sub { font-size: 11px; color: var(--text3); display: block; margin-top: 1px; }
-.form-input {
-  width: 90px; padding: 7px 10px; text-align: right;
-  font-family: var(--font); font-size: 15px; font-weight: 500; color: var(--text1);
-  background: var(--surface2); border: 1.5px solid var(--border2);
-  border-radius: 8px; transition: border-color 0.15s;
+
+/* Standard Form Row: Label oben, Input darunter, volle Breite */
+.form-row {
+  display: flex;
+  flex-direction: column;
+  align-items: stretch;
+  gap: 8px;
+  padding: 0;
+  margin-bottom: 16px;
+}
+
+.form-label {
+  display: block;
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--text1);
+  text-align: left;
+  line-height: 1.3;
+}
+
+.form-sub {
+  font-size: 11px;
+  color: var(--text3);
+  display: block;
+  margin-top: 2px;
+}
+
+.form-input {
+  width: 100%;
+  padding: 10px 12px;
+  text-align: left;
+  font-family: var(--font);
+  font-size: 15px;
+  font-weight: 500;
+  color: var(--text1);
+  background: var(--surface2);
+  border: 1.5px solid var(--border2);
+  border-radius: 8px;
+  transition: border-color 0.15s;
+  box-sizing: border-box;
+}
+
+.form-input:focus {
+  outline: none;
+  border-color: var(--accent);
+}
+
+/* Textarea spezifisch */
+textarea.form-input {
+  resize: vertical;
+  min-height: 80px;
+}
+
+/* Select spezifisch */
+select.form-input {
+  cursor: pointer;
+}
+
+/* Inline-Variante für Ausnahmen (z.B. kurze Werte mit Einheit) */
+.form-row--inline {
+  flex-direction: row;
+  align-items: center;
+  gap: 10px;
+}
+
+.form-row--inline .form-label {
+  flex: 1;
+  font-weight: 500;
+}
+
+.form-row--inline .form-input {
+  width: 90px;
+  text-align: right;
+}
+
+.form-unit {
+  font-size: 12px;
+  color: var(--text3);
+  width: 24px;
 }
-.form-input:focus { outline: none; border-color: var(--accent); }
-.form-unit { font-size: 12px; color: var(--text3); width: 24px; }
 
 /* Einstellungen Profil: Label als Überschrift oben, volle Breite, linksbündig */
 .settings-page__field {