Restyle Klaro banner to brand + add persistent reopen button

Was full-width ('wide' theme) with Klaro's default green/dark
palette, neither matching the brand. Now: compact bottom-left corner
notice (~380px), brand colors via Klaro's CSS-var overrides
(dark1/light1 etc. — confusingly named, they're background/text, not
a dark-mode switch), neutral gray decline button instead of red.

Also adds a persistent bottom-left cookie icon (KlaroConsentManager.tsx)
so a visitor can reopen the consent manager any time via Klaro.show(),
not just on first visit.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/components/KlaroConsentManager.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect } from "react";
+import { useEffect, useState } from "react";
 import "klaro/dist/klaro.css";
 import type { TrackingCode } from "../lib/payload";
 import { buildKlaroConfig } from "../lib/klaroConfig";
@@ -21,6 +21,12 @@ import { loadTrackingCode } from "../lib/loadTrackingCode";
 // dynamic import()), paired with the "-no-css" JS build so the stylesheet
 // isn't loaded twice.
 export function KlaroConsentManager({ codes }: { codes: TrackingCode[] }) {
+  // Kept in state (not just called once) so the persistent reopen button
+  // below can call Klaro.show() itself, any time after the initial
+  // accept/reject decision — a visitor must always be able to revisit
+  // their choice, not just on first load.
+  const [klaroModule, setKlaroModule] = useState<typeof import("klaro/dist/klaro-no-css") | null>(null);
+
   useEffect(() => {
     // Nothing to ask consent for — don't even load/render Klaro. A cookie
     // banner with zero services to list would just be visual noise.
@@ -31,6 +37,7 @@ export function KlaroConsentManager({ codes }: { codes: TrackingCode[] }) {
       if (cancelled) return;
       const config = buildKlaroConfig(codes, loadTrackingCode);
       Klaro.setup(config);
+      setKlaroModule(Klaro);
     });
     return () => {
       cancelled = true;
@@ -41,5 +48,24 @@ export function KlaroConsentManager({ codes }: { codes: TrackingCode[] }) {
     // meant to be called more than once per page load anyway.
   }, []);
 
-  return null;
+  if (!klaroModule) return null;
+
+  return (
+    <button
+      type="button"
+      onClick={() => klaroModule.show()}
+      aria-label="Cookie-Einstellungen öffnen"
+      title="Cookie-Einstellungen"
+      className="fixed bottom-5 left-5 z-40 flex h-11 w-11 items-center justify-center rounded-full border border-border bg-bg-base shadow-md hover:border-brand transition-colors"
+    >
+      <svg viewBox="0 0 24 24" width="22" height="22" fill="none" aria-hidden="true">
+        <circle cx="12" cy="12" r="9" stroke="currentColor" strokeWidth="1.6" />
+        <circle cx="9" cy="9.5" r="1.1" fill="currentColor" />
+        <circle cx="14" cy="8.5" r="1" fill="currentColor" />
+        <circle cx="15" cy="13.5" r="1.1" fill="currentColor" />
+        <circle cx="10.5" cy="14.5" r="1" fill="currentColor" />
+        <circle cx="12" cy="11" r="0.9" fill="currentColor" />
+      </svg>
+    </button>
+  );
 }