feat(andreknie.de): loop testimonial slider

privat/CV/andreknie.de/src/components/TestimonialSlider.css

@@ -2,6 +2,33 @@
   padding: var(--section-padding) 20px;
 }
 
+.testimonial-slider-controls {
+  display: flex;
+  justify-content: flex-end;
+  gap: 10px;
+  margin-bottom: 18px;
+}
+
+.testimonial-nav-button {
+  width: 42px;
+  height: 42px;
+  border: 1px solid var(--glass-border);
+  border-radius: 50%;
+  background: var(--bg-elevated);
+  color: var(--text-primary);
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
+}
+
+.testimonial-nav-button:hover {
+  border-color: var(--accent-color);
+  color: var(--accent-color);
+  transform: translateY(-1px);
+}
+
 .testimonial-scroll-container {
   display: flex;
   overflow-x: auto;
@@ -9,11 +36,20 @@
   scroll-behavior: smooth;
   gap: 24px;
   padding-bottom: 32px; /* Space for scrollbar and shadow */
+  cursor: grab;
+  user-select: none;
   
   /* Hide scrollbar for cleaner look, or keep it subtle */
   scrollbar-width: none; /* Firefox */
   -ms-overflow-style: none; /* IE/Edge */
 }
+
+.testimonial-scroll-container.dragging {
+  cursor: grabbing;
+  scroll-snap-type: none;
+  scroll-behavior: auto;
+}
+
 .testimonial-scroll-container::-webkit-scrollbar {
   display: none; /* Chrome/Safari */
 }