card slider now looks good, not messy, card height is unified and long text can be tapped to be fully visible.

resources/js/guest/pages/HomePage.tsx

@@ -12,7 +12,7 @@ import GalleryPreview from '../components/GalleryPreview';
 import { useGuestIdentity } from '../context/GuestIdentityContext';
 import { useEventData } from '../hooks/useEventData';
 import { useGuestTaskProgress } from '../hooks/useGuestTaskProgress';
-import { Sparkles, UploadCloud, X, RefreshCw, Timer } from 'lucide-react';
+import { ChevronDown, Sparkles, UploadCloud, X, RefreshCw, Timer } from 'lucide-react';
 import { useTranslation, type TranslateFn } from '../i18n/useTranslation';
 import { useEventBranding } from '../context/EventBrandingContext';
 import type { EventBranding } from '../types/event-branding';
@@ -482,6 +482,49 @@ function MissionActionCard({
   const shellRadius = `${radius + 10}px`;
   const normalizeText = (value: string | undefined | null) =>
     (value ?? '').trim().toLowerCase().replace(/\s+/g, ' ');
+  const [expandedTaskId, setExpandedTaskId] = React.useState<number | null>(null);
+  const lastSlideIndexRef = React.useRef<number>(initialIndex);
+  const titleRefs = React.useRef(new Map<number, HTMLParagraphElement | null>());
+  const [expandableTitles, setExpandableTitles] = React.useState<Record<number, boolean>>({});
+
+  const measureTitleOverflow = React.useCallback(() => {
+    setExpandableTitles((prev) => {
+      let hasChange = false;
+      const next = { ...prev };
+
+      titleRefs.current.forEach((element, id) => {
+        if (!element || element.dataset.collapsed !== 'true') {
+          return;
+        }
+        const isOverflowing = element.scrollHeight > element.clientHeight + 1;
+        if (next[id] !== isOverflowing) {
+          next[id] = isOverflowing;
+          hasChange = true;
+        }
+      });
+
+      return hasChange ? next : prev;
+    });
+  }, []);
+
+  React.useLayoutEffect(() => {
+    if (typeof window === 'undefined') {
+      return;
+    }
+    const raf = window.requestAnimationFrame(measureTitleOverflow);
+    return () => window.cancelAnimationFrame(raf);
+  }, [measureTitleOverflow, cards, headingFont]);
+
+  React.useEffect(() => {
+    if (typeof window === 'undefined') {
+      return;
+    }
+    const handleResize = () => {
+      window.requestAnimationFrame(measureTitleOverflow);
+    };
+    window.addEventListener('resize', handleResize);
+    return () => window.removeEventListener('resize', handleResize);
+  }, [measureTitleOverflow]);
 
   const renderCardContent = (card: MissionPreview | null) => {
     const theme = getEmotionTheme(card?.emotion ?? null);
@@ -489,6 +532,15 @@ function MissionActionCard({
     const durationMinutes = card?.duration ?? 3;
     const titleFont = headingFont ? { fontFamily: headingFont } : undefined;
     const gradientBackground = card ? theme.gradientBackground : `linear-gradient(135deg, ${primary}, ${secondary})`;
+    const isExpanded = card ? expandedTaskId === card.id : false;
+    const isExpandable = Boolean(card && expandableTitles[card.id]);
+    const titleClamp = isExpanded ? '' : 'line-clamp-2 sm:line-clamp-3';
+    const titleClasses = `text-xl font-semibold leading-snug text-slate-900 sm:text-2xl break-words py-1 min-h-[3.75rem] sm:min-h-[4.5rem] ${titleClamp}`;
+    const titleId = card ? `task-title-${card.id}` : undefined;
+    const toggleExpanded = () => {
+      if (!card) return;
+      setExpandedTaskId((prev) => (prev === card.id ? null : card.id));
+    };
 
     return (
       <div
@@ -542,12 +594,48 @@ function MissionActionCard({
 
           <div className="mt-4 text-center">
             {card ? (
+              isExpandable ? (
+                <button
+                  type="button"
+                  onClick={toggleExpanded}
+                  className="mx-auto flex w-full flex-col items-center gap-1 text-center"
+                  aria-expanded={isExpanded}
+                  aria-controls={titleId}
+                >
                   <p
-                className="text-xl font-semibold leading-snug text-slate-900 sm:text-2xl break-words py-1"
+                    id={titleId}
+                    ref={(node) => {
+                      if (card) {
+                        titleRefs.current.set(card.id, node);
+                      }
+                    }}
+                    data-collapsed={!isExpanded}
+                    className={titleClasses}
                     style={{ ...titleFont, textShadow: '0 6px 18px rgba(15,23,42,0.28)' }}
                   >
                     {card.title}
                   </p>
+                  <ChevronDown
+                    className={`h-4 w-4 text-slate-600 transition-transform ${isExpanded ? 'rotate-180' : ''}`}
+                    aria-hidden
+                  />
+                  <span className="sr-only">Titel ein- oder ausklappen</span>
+                </button>
+              ) : (
+                <p
+                  id={titleId}
+                  ref={(node) => {
+                    if (card) {
+                      titleRefs.current.set(card.id, node);
+                    }
+                  }}
+                  data-collapsed={!isExpanded}
+                  className={titleClasses}
+                  style={{ ...titleFont, textShadow: '0 6px 18px rgba(15,23,42,0.28)' }}
+                >
+                  {card.title}
+                </p>
+              )
             ) : loading ? (
               <div className="space-y-2">
                 <Skeleton className="mx-auto h-6 w-3/4" />
@@ -622,8 +710,8 @@ function MissionActionCard({
             effect="cards"
             modules={[EffectCards]}
             cardsEffect={{
-              perSlideRotate: 2,
+              perSlideRotate: 1,
-              perSlideOffset: 4,
+              perSlideOffset: 1,
               slideShadows: false,
             }}
             slidesPerView={1}
@@ -639,6 +727,10 @@ function MissionActionCard({
             }}
             onSlideChange={(instance) => {
               const realIndex = typeof instance.realIndex === 'number' ? instance.realIndex : instance.activeIndex ?? 0;
+              if (realIndex !== lastSlideIndexRef.current) {
+                setExpandedTaskId(null);
+              }
+              lastSlideIndexRef.current = realIndex;
               onIndexChange(realIndex, slides.length);
             }}
             className="!pb-2"