Fix page parity: images on even (left) pages, text on odd (right) pages

Add a section-title page ("Die Geschichten") as page 3 so all stories
begin on page 4. Image and text for each scene now land on the same
facing spread (even=left image, odd=right text). Page count: 99 → 100.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

styles/layout.css

@@ -102,6 +102,29 @@
   flex-shrink: 0;
 }
 
+/* ── Section title page ── */
+.page--section {
+  background: var(--cream, #faf8f2);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.section-title-inner {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 0.8rem;
+  text-align: center;
+}
+
+.section-rule {
+  display: block;
+  width: 3rem;
+  height: 1px;
+  background: rgba(30, 27, 24, 0.25);
+}
+
 /* ── Finale page ── */
 .page--finale {
   background: var(--midnight, #0d0d2b);