Banner-Slider: Vor-/Zurück-Steuerung

Prev/Next-Navigationsbuttons für den Banner-Slider (carousel.js, generisch über
[data-carousel-prev/next]), zugehörige ad-banner-Steuerungs-Styles und Chevron-
Icons. Ohne JS bleiben die Controls ausgeblendet (progressive enhancement).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HGzc6GhWhmLJt1jC2q1SRZ

public/assets/css/components.css

@@ -1369,25 +1369,28 @@
     --banner-interval: 6s;
 }
 
-/* Sektions-Kopf zentriert (einheitlich mit partners/persons/…) */
-.ad-banner > .container > h2,
-.ad-banner__subline {
-    text-align: center;
-}
-
-.ad-banner__subline {
-    margin-top: 0.75rem;
-    /* Volle Breite, damit der Dank in einer Zeile steht; auf Mobil bricht er natürlich um. */
-    max-width: none;
-    text-wrap: balance;
-}
-
 .ad-banner__track {
     list-style: none;
-    margin: 2rem 0 0;
+    margin: 0;
     padding: 0;
 }
 
+/* Meta-Zeile unter dem Slider: Label links, Controls rechts */
+.ad-banner__meta {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 1rem;
+    margin-top: 1rem;
+    min-height: 2rem;
+}
+
+.ad-banner__meta-label {
+    font-size: var(--fs-400);
+    color: var(--clr-text-muted);
+    letter-spacing: 0.03em;
+}
+
 .ad-banner__slide[hidden] {
     display: none;
 }
@@ -1613,13 +1616,12 @@
     }
 }
 
-/* Steuerung: Pause/Play-Taste + Indikatorleiste. */
+/* Steuerung: Pause/Play-Taste + Indikatorleiste — sitzt rechts in .ad-banner__meta. */
 .ad-banner__controls {
     display: flex;
     align-items: center;
-    justify-content: center;
-    gap: 1rem;
-    margin-top: 1.75rem;
+    gap: 0.75rem;
+    flex-shrink: 0;
 }
 
 .ad-banner__controls[hidden] {
@@ -1644,6 +1646,30 @@
     display: none;
 }
 
+.ad-banner__nav-btn {
+    display: inline-grid;
+    place-items: center;
+    width: 2.25rem;
+    height: 2.25rem;
+    padding: 0;
+    font-size: 1rem;
+    color: var(--clr-text);
+    background: var(--clr-glass-bg);
+    border: 1px solid var(--clr-glass-border);
+    border-radius: 999px;
+    cursor: pointer;
+    transition: background var(--transition);
+}
+
+.ad-banner__nav-btn:hover {
+    background: rgb(255 255 255 / 0.2);
+}
+
+.ad-banner__nav-btn:focus-visible {
+    outline: 2px solid var(--clr-text);
+    outline-offset: 3px;
+}
+
 .ad-banner__toggle:hover {
     background: rgb(255 255 255 / 0.2);
 }
@@ -1654,7 +1680,7 @@
 }
 
 .ad-banner__toggle-icon {
-    font-size: 1.15rem;
+    font-size: 1rem;
 }
 
 /* Pause-Icon im Abspiel-Zustand, Play-Icon wenn pausiert. */

public/assets/icons/chevron-left.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0"/></svg>

public/assets/icons/chevron-right.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708"/></svg>

public/assets/js/carousel.js

@@ -29,6 +29,8 @@
         var controls = root.querySelector('[data-carousel-controls]');
         var toggle = root.querySelector('[data-carousel-toggle]');
         var toggleLabel = root.querySelector('[data-carousel-toggle-label]');
+        var prevBtn = root.querySelector('[data-carousel-prev]');
+        var nextBtn = root.querySelector('[data-carousel-next]');
         if (slides.length <= 1) {
             return;
         }
@@ -96,6 +98,13 @@
             });
         });
 
+        if (prevBtn) {
+            prevBtn.addEventListener('click', function () { activate(index - 1); });
+        }
+        if (nextBtn) {
+            nextBtn.addEventListener('click', function () { activate(index + 1); });
+        }
+
         // Steuerung einblenden (ohne JS bleibt sie verborgen, da funktionslos).
         if (controls) {
             controls.hidden = false;