Fix overlay layer for pulldown and sandwich panels

semantic-tokens-components.html

@@ -122,6 +122,7 @@
     </tbody></table>
 
     <h3 class="sg-sub-heading sg-section-h3">Pulldown and Menu</h3>
+    <p class="sg-table-label">Changelog (2026-05-25): Overlay-Layer vereinheitlicht; Pulldowns liegen über Scorebars (Fix Relativmodus).</p>
     <table class="sg-foundation-table sg-table-label"><thead><tr><th>Semantischer Token</th><th>Verwendeter Foundation-Token</th><th>Beschreibung Verwendungszweck in der Komponente</th></tr></thead><tbody>
       <tr><td>surface-pulldown-panel</td><td>color-light-grey</td><td>Fläche geöffneter Pulldown-Panels.</td></tr>
       <tr><td>surface-activatable-remove</td><td>surface-control-default</td><td>Fläche des Schließen-Kontrollfelds für aktive Filterzeilen innerhalb geöffneter Pulldown-Panel-Formbereiche.</td></tr>

styles/10-components-interactive-elements.css

@@ -934,7 +934,7 @@
       border: var(--border-none);
       border-radius: var(--radius-card);
       box-shadow: var(--shadow-overlay);
-      z-index: 1;
+      z-index: var(--layer-pulldown-panel);
     }
 
     .sg-sandwich-menu-wrap[data-component-size="default"] .sg-sandwich-menu-panel {
@@ -1353,4 +1353,3 @@
       color: var(--text-hyperlink);
       text-decoration: none;
     }
-