Redesign: warmer, more editorial visual pass; remove stray em dashes

Replaces em dashes with en dashes across all hardcoded copy, emails, and
seed content, then reworks the site's visual language so it reads as
deliberately designed rather than assembled from generic components:

- New ArrowLink component replaces ad hoc "Mehr erfahren ->" links and
  ghost buttons; one shared FormField (TextField/TextAreaField) replaces
  7 near-duplicate field styles across every form
- Navbar loses its glassmorphism blur for a solid warm background, gets a
  subtle active-link underline and a softer, warmer mega-menu
- PageHeader supports per-page blob tone/position and a compact mode
  instead of an identical band on every interior page
- Homepage: the core offer is featured large instead of four equal cards,
  the philosophy section gets a single calmer accent blob, blog teasers
  now show their cover image like the real /aktuelles page does
- Booking calendar and widget: 44px touch targets throughout (month nav,
  day cells, time slots, cancel action), a visible "today" ring, and
  responsive padding so the calendar isn't cramped on small screens
- Quieter, warmer empty states on /termine and /aktuelles

No functional changes: all interaction logic (nav menus, forms, booking,
CMS data fetching) is untouched, only markup and styling.

app/(frontend)/termine/[slug]/page.tsx

@@ -126,6 +126,8 @@ export default async function EventDetailPage({ params }: Args) {
         eyebrow={categoryLabel}
         title={event.title}
         crumbs={[{ title: "Termine", href: "/termine" }, { title: event.title }]}
+        blobTone="mauve"
+        blobPosition="top-left"
       />
       <Section tone="plain">
         <div className="grid gap-14 lg:grid-cols-[1fr_0.8fr]">

app/(frontend)/termine/page.tsx

@@ -3,6 +3,7 @@ import { PageHeader } from "@/components/PageHeader";
 import { Section } from "@/components/Section";
 import { Reveal } from "@/components/Reveal";
 import { EventTeaserCard } from "@/components/EventTeaserCard";
+import { ArrowLink } from "@/components/ArrowLink";
 import { getAllEvents } from "@/lib/payload/content";
 import { buildMetadata } from "@/lib/seo/metadata";
 import { getSiteUrl } from "@/lib/seo/config";
@@ -32,14 +33,21 @@ export default async function TerminePage() {
         title="Aktuelle Termine"
         lead="Ein Überblick über anstehende Kreise, Begleitungen und Veranstaltungen."
         crumbs={[{ title: "Termine" }]}
+        blobTone="mauve"
+        blobPosition="top-left"
       />
 
       <Section tone="plain">
         {upcoming.length === 0 ? (
-          <p className="text-lg text-anouma-plum">
-            Aktuell sind keine Termine geplant — schau gerne bald wieder vorbei oder melde dich
-            direkt über die <a href="/kontakt" className="underline underline-offset-4">Kontaktseite</a>.
-          </p>
+          <div className="rounded-3xl bg-anouma-cream-light p-8 text-center sm:p-10">
+            <p className="font-serif text-xl font-medium text-anouma-plum">Aktuell sind keine Termine geplant</p>
+            <p className="mt-2 text-base leading-relaxed text-anouma-plum/90">
+              Schau gerne bald wieder vorbei, oder melde dich direkt – ich freue mich von dir zu hören.
+            </p>
+            <div className="mt-5 flex justify-center">
+              <ArrowLink href="/kontakt">Zur Kontaktseite</ArrowLink>
+            </div>
+          </div>
         ) : (
           <div className="grid gap-6 sm:grid-cols-2 lg:grid-cols-3">
             {upcoming.map((event, i) => (