diff --git a/src/panels/AttributesPanel.tsx b/src/panels/AttributesPanel.tsx
index 9f15a25..ff71513 100644
--- a/src/panels/AttributesPanel.tsx
+++ b/src/panels/AttributesPanel.tsx
@@ -28,6 +28,7 @@ import { formatM } from "../model/types";
 import { PEN_WEIGHTS } from "../model/types";
 import type { AttributeSource } from "../model/types";
 import { usePanelHost } from "./host";
+import { Dropdown } from "../ui/Dropdown";
 
 /** UI-Zustand des 3-Optionen-Quellen-Dropdowns (nicht 1:1 das Modell-Feld:
  *  „custom" ist abgeleitet aus „ist ein expliziter Wert gesetzt?", nicht
@@ -77,17 +78,17 @@ export function AttributesPanel() {
     ui: UiSource,
     onChange: (next: UiSource) => void,
   ) => (
-    <select
-      className="attr-select"
-      style={{ width: 104 }}
+    <Dropdown
+      width={104}
       value={ui}
       disabled={!editable}
-      onChange={(e) => onChange(e.target.value as UiSource)}
-    >
-      <option value="layer">{t("attr.source.layer")}</option>
-      <option value="object">{t("attr.source.object")}</option>
-      <option value="custom">{t("attr.source.custom")}</option>
-    </select>
+      onChange={(v) => onChange(v as UiSource)}
+      options={[
+        { value: "layer", label: t("attr.source.layer") },
+        { value: "object", label: t("attr.source.object") },
+        { value: "custom", label: t("attr.source.custom") },
+      ]}
+    />
   );
 
   // Farb-Swatch-Eingabe für „eigener Wert" (Vordergrund/Hintergrund). Erscheint
@@ -246,19 +247,15 @@ export function AttributesPanel() {
           fillEditable,
           hatchUi,
           onHatchSourceChange,
-          <select
-            className="attr-select"
-            style={{ width: 104 }}
+          <Dropdown
+            width={104}
             value={sel.fillHatchId ?? ""}
-            onChange={(e) => host.onSetSelectionFill(e.target.value || null)}
-          >
-            <option value="">{t("attr.none")}</option>
-            {project.hatches.map((h) => (
-              <option key={h.id} value={h.id}>
-                {h.name}
-              </option>
-            ))}
-          </select>,
+            onChange={(v) => host.onSetSelectionFill(v || null)}
+            options={[
+              { value: "", label: t("attr.none") },
+              ...project.hatches.map((h) => ({ value: h.id, label: h.name })),
+            ]}
+          />,
         )}
       </div>
 
diff --git a/src/panels/DisplayModeSelect.tsx b/src/panels/DisplayModeSelect.tsx
index 200548f..e8d0a76 100644
--- a/src/panels/DisplayModeSelect.tsx
+++ b/src/panels/DisplayModeSelect.tsx
@@ -10,6 +10,7 @@
 
 import type { DisplayMode } from "./types";
 import { t } from "../i18n";
+import { Dropdown } from "../ui/Dropdown";
 
 /**
  * Beschriftungs-Keys je Modus (Werte englisch, vgl. types.ts) — exakt die
@@ -41,18 +42,12 @@ export function DisplayModeSelect({
 }) {
   const label = title ?? t("display.title");
   return (
-    <select
-      className="display-mode"
+    <Dropdown
+      triggerClassName="display-mode"
       value={value}
       title={label}
-      aria-label={label}
-      onChange={(e) => onChange(e.target.value as DisplayMode)}
-    >
-      {MODE_OPTIONS.map((o) => (
-        <option key={o.value} value={o.value}>
-          {t(o.labelKey)}
-        </option>
-      ))}
-    </select>
+      onChange={(v) => onChange(v as DisplayMode)}
+      options={MODE_OPTIONS.map((o) => ({ value: o.value, label: t(o.labelKey) }))}
+    />
   );
 }
diff --git a/src/panels/SitePanel.tsx b/src/panels/SitePanel.tsx
index bdf86ce..f834c20 100644
--- a/src/panels/SitePanel.tsx
+++ b/src/panels/SitePanel.tsx
@@ -17,6 +17,7 @@ import type { TranslationKey } from "../i18n";
 import { usePanelHost } from "./host";
 import type { ContextObject } from "../model/types";
 import { ContextImportDialog } from "../ui/ContextImportDialog";
+import { Dropdown } from "../ui/Dropdown";
 
 /** Typ-spezifisches Badge-Label (i18n-Key) je Kontext-Objekt-Art. */
 function typeBadgeKey(obj: ContextObject): TranslationKey {
@@ -85,18 +86,12 @@ export function SitePanel() {
       {contourSets.length > 0 && (
         <div className="site-terrain-row">
           {contourSets.length > 1 ? (
-            <select
-              className="site-select"
+            <Dropdown
               value={effectiveSet}
-              onChange={(e) => setSelectedSet(e.target.value)}
-              aria-label={t("site.contourSet")}
-            >
-              {contourSets.map((cs) => (
-                <option key={cs.id} value={cs.id}>
-                  {cs.name}
-                </option>
-              ))}
-            </select>
+              onChange={(v) => setSelectedSet(v)}
+              title={t("site.contourSet")}
+              options={contourSets.map((cs) => ({ value: cs.id, label: cs.name }))}
+            />
           ) : (
             <span className="site-terrain-src" title={t("site.contourSet")}>
               {contourSets[0].name}
diff --git a/src/panels/ToolsPanel.tsx b/src/panels/ToolsPanel.tsx
index a21a197..4278df9 100644
--- a/src/panels/ToolsPanel.tsx
+++ b/src/panels/ToolsPanel.tsx
@@ -13,6 +13,7 @@ import { t } from "../i18n";
 import { usePanelHost } from "./host";
 import type { ToolId } from "./host";
 import { TOOL_ORDER, getTool } from "../tools/tools";
+import { Dropdown } from "../ui/Dropdown";
 
 // ── Icons ──────────────────────────────────────────────────────────────────
 // Keine echten Asset-Icons vorhanden: schlichte Inline-SVG-Glyphen je Werkzeug
@@ -153,17 +154,15 @@ export function ToolsPanel() {
       {host.activeTool === "wall" && (
         <label className="tools-field">
           <span>{t("tool.wallType")}</span>
-          <select
+          <Dropdown
             value={host.activeWallTypeId}
             disabled={!host.toolsEnabled}
-            onChange={(e) => host.onActiveWallTypeId(e.target.value)}
-          >
-            {host.project.wallTypes.map((wt) => (
-              <option key={wt.id} value={wt.id}>
-                {wt.name}
-              </option>
-            ))}
-          </select>
+            onChange={(v) => host.onActiveWallTypeId(v)}
+            options={host.project.wallTypes.map((wt) => ({
+              value: wt.id,
+              label: wt.name,
+            }))}
+          />
         </label>
       )}
 
@@ -174,17 +173,15 @@ export function ToolsPanel() {
       {host.activeTool === "ceiling" && (
         <label className="tools-field">
           <span>{t("tool.ceilingType")}</span>
-          <select
+          <Dropdown
             value={host.activeWallTypeId}
             disabled={!host.toolsEnabled}
-            onChange={(e) => host.onActiveWallTypeId(e.target.value)}
-          >
-            {host.project.wallTypes.map((wt) => (
-              <option key={wt.id} value={wt.id}>
-                {wt.name}
-              </option>
-            ))}
-          </select>
+            onChange={(v) => host.onActiveWallTypeId(v)}
+            options={host.project.wallTypes.map((wt) => ({
+              value: wt.id,
+              label: wt.name,
+            }))}
+          />
         </label>
       )}
 
diff --git a/src/text/RichTextEditor.tsx b/src/text/RichTextEditor.tsx
index 645bf10..f98c4b4 100644
--- a/src/text/RichTextEditor.tsx
+++ b/src/text/RichTextEditor.tsx
@@ -9,6 +9,7 @@
 import { useCallback, useEffect, useRef, useState } from "react";
 import { t } from "../i18n";
 import { docToHtml } from "./renderHtml";
+import { Dropdown } from "../ui/Dropdown";
 import {
   applyMark,
   applyPreset,
@@ -574,15 +575,13 @@ export function RichTextEditor({
   );
 
   const handlePreset = useCallback(
-    (e: React.ChangeEvent<HTMLSelectElement>) => {
-      const id = e.target.value;
+    (id: string) => {
       const preset = effectivePresets.find((p) => p.id === id);
       if (!preset) return;
       const range = selRange ?? { start: 0, end: 0 };
       const newDoc = applyPreset(valueRef.current, range, preset);
       onChangeRef.current(newDoc);
       setEditorHtml(newDoc, selRange, true);
-      e.target.value = "";
     },
     [effectivePresets, selRange, setEditorHtml],
   );
@@ -688,21 +687,16 @@ export function RichTextEditor({
 
         {/* Presets */}
         {effectivePresets.length > 0 && (
-          <select
-            className="rt-preset-select"
-            defaultValue=""
+          <Dropdown
+            triggerClassName="rt-preset-select"
+            value=""
             onChange={handlePreset}
             title={t("rt.preset")}
-          >
-            <option value="" disabled>
-              {t("rt.preset")} …
-            </option>
-            {effectivePresets.map((p) => (
-              <option key={p.id} value={p.id}>
-                {p.label}
-              </option>
-            ))}
-          </select>
+            options={[
+              { value: "", label: `${t("rt.preset")} …`, disabled: true },
+              ...effectivePresets.map((p) => ({ value: p.id, label: p.label })),
+            ]}
+          />
         )}
       </div>
 
diff --git a/src/ui/ImportDialog.tsx b/src/ui/ImportDialog.tsx
index 5fb82ac..92dadbf 100644
--- a/src/ui/ImportDialog.tsx
+++ b/src/ui/ImportDialog.tsx
@@ -25,6 +25,7 @@ import {
   distinctLayers,
 } from "../io/dxfToDrawings";
 import type { CategoryMode } from "../io/dxfToDrawings";
+import { Dropdown } from "./Dropdown";
 
 /** Strukturierte Import-Entscheidung, die der Dialog beim Bestätigen liefert. */
 export interface ImportDecision {
@@ -226,18 +227,15 @@ export function ImportDialog({
                     <span>{t("import.target.existing")}</span>
                   </label>
                   {targetKind === "existing" && (
-                    <select
-                      className="imp-select"
+                    <Dropdown
                       value={existingLevelId}
-                      onChange={(e) => setExistingLevelId(e.target.value)}
-                      aria-label={t("import.target.existing")}
-                    >
-                      {project.drawingLevels.map((z) => (
-                        <option key={z.id} value={z.id}>
-                          {z.name} · {t(kindBadgeKey(z.kind))}
-                        </option>
-                      ))}
-                    </select>
+                      onChange={(v) => setExistingLevelId(v)}
+                      title={t("import.target.existing")}
+                      options={project.drawingLevels.map((z) => ({
+                        value: z.id,
+                        label: `${z.name} · ${t(kindBadgeKey(z.kind))}`,
+                      }))}
+                    />
                   )}
                   <label className="imp-radio">
                     <input
diff --git a/src/ui/ResourceManager.tsx b/src/ui/ResourceManager.tsx
index 57a39fc..c60fb0c 100644
--- a/src/ui/ResourceManager.tsx
+++ b/src/ui/ResourceManager.tsx
@@ -43,6 +43,7 @@ import {
   type AmbientResolution,
 } from "../materials/ambientcg";
 import { requestMaterialPreview, cancelMaterialPreview } from "../materials/spherePreview";
+import { Dropdown } from "./Dropdown";
 import { EyeIcon } from "./EyeIcon";
 import { HatchSwatch, LineSwatch, WallTypeSwatch } from "./hatchPreview";
 import type { SwatchLayer } from "./hatchPreview";
@@ -154,7 +155,7 @@ function ColorField({
   );
 }
 
-/** Pill-Dropdown (erbt das globale select-Styling). */
+/** Pill-Dropdown (nutzt die gemeinsame Dropdown-Komponente statt <select>). */
 function SelectField<T extends string>({
   value,
   onChange,
@@ -165,17 +166,11 @@ function SelectField<T extends string>({
   options: { value: T; label: string }[];
 }) {
   return (
-    <select
-      className="res-select"
+    <Dropdown
       value={value}
-      onChange={(e) => onChange(e.target.value as T)}
-    >
-      {options.map((o) => (
-        <option key={o.value} value={o.value}>
-          {o.label}
-        </option>
-      ))}
-    </select>
+      onChange={(v) => onChange(v as T)}
+      options={options}
+    />
   );
 }
 
@@ -623,28 +618,24 @@ function AmbientBrowser({
         <button className="res-add" onClick={submitSearch}>
           {t("material.browse.search")}
         </button>
-        <select
-          className="res-select"
+        <Dropdown
           value={category}
-          onChange={(e) => setCategory(e.target.value)}
-        >
-          <option value="">{t("material.browse.category.all")}</option>
-          {AMBIENT_CATEGORIES.map((c) => (
-            <option key={c} value={c}>
-              {c}
-            </option>
-          ))}
-        </select>
-        <select
-          className="res-select"
+          onChange={(v) => setCategory(v)}
+          options={[
+            { value: "", label: t("material.browse.category.all") },
+            ...AMBIENT_CATEGORIES.map((c) => ({ value: c, label: c })),
+          ]}
+        />
+        <Dropdown
           value={resolution}
           title={t("material.browse.resolution")}
-          onChange={(e) => setResolution(e.target.value as AmbientResolution)}
-        >
-          <option value="1K">1K</option>
-          <option value="2K">2K</option>
-          <option value="4K">4K</option>
-        </select>
+          onChange={(v) => setResolution(v as AmbientResolution)}
+          options={[
+            { value: "1K", label: "1K" },
+            { value: "2K", label: "2K" },
+            { value: "4K", label: "4K" },
+          ]}
+        />
       </div>
 
       {error && <div className="mat-browse-error">{error}</div>}