feat: single-page redesign with text-only hero, team section, services grid, mobile nav

- Replace component-based index with unified inline page
- Add text-only hero with warm editorial typography
- Add team section with avatars and bios
- Convert services to responsive grid layout
- Add contact labels and editorial images
- Implement mobile hamburger navigation with slide-in panel
- Polish typography, spacing, and accessibility
- Remove design variant pages (1-6)

src/components/sections/Hours.astro

@@ -0,0 +1,22 @@
+---
+import { siteContent } from "@/content/site-content"
+---
+
+<section id="zeiten" class="section-shell hours-section cut-line" aria-labelledby="hours-title">
+  <div class="section-heading">
+    <p class="eyebrow">Öffnungszeiten</p>
+    <h2 id="hours-title">Planbar von Montag bis Samstag.</h2>
+    <p>Für Termine bitte kurz anrufen. So lässt sich direkt klären, wann genug Zeit für Beratung, Schnitt oder Farbe frei ist.</p>
+  </div>
+
+  <div class="hours-panel">
+    {
+      siteContent.hours.map((entry) => (
+        <div class="hours-row">
+          <span>{entry.day}</span>
+          <time>{entry.time}</time>
+        </div>
+      ))
+    }
+  </div>
+</section>