fix:Nambah animasi statistik counter

groups/RODA/index.html

@@ -2178,6 +2178,55 @@
             }
         })();
     </script>
+
+    <script>
+        (function () {
+            const stats = [
+                { id: 'stat-pub',    target: 400, suffix: '+', decimals: 0 },
+                { id: 'stat-sinta',  target: 7555, suffix: '',  decimals: 0, format: 'dot-thousands' },
+                { id: 'stat-dosen',  target: 33,  suffix: '',  decimals: 0 },
+                { id: 'stat-collab', target: 10,  suffix: '+', decimals: 0 },
+                { id: 'stat-mhs',    target: 518, suffix: '',  decimals: 0 },
+            ];
+
+            function easeOutQuart(t) {
+                return 1 - Math.pow(1 - t, 4);
+            }
+
+            function formatValue(value, fmt) {
+                if (fmt === 'dot-thousands') {
+                    return Math.floor(value).toLocaleString('id-ID');
+                }
+                return Math.floor(value).toString();
+            }
+
+            function animateStat(el, target, suffix, fmt, duration) {
+                const start = performance.now();
+                function step(now) {
+                    const elapsed = now - start;
+                    const progress = Math.min(elapsed / duration, 1);
+                    const current = easeOutQuart(progress) * target;
+                    el.textContent = formatValue(current, fmt) + suffix;
+                    if (progress < 1) requestAnimationFrame(step);
+                }
+                requestAnimationFrame(step);
+            }
+
+            const observer = new IntersectionObserver(function (entries) {
+                entries.forEach(function (entry) {
+                    if (!entry.isIntersecting) return;
+                    observer.unobserve(entry.target);
+                    stats.forEach(function (s) {
+                        const el = document.getElementById(s.id);
+                        if (el) animateStat(el, s.target, s.suffix, s.format, 1800);
+                    });
+                });
+            }, { threshold: 0.3 });
+
+            const section = document.querySelector('#stat-pub');
+            if (section) observer.observe(section.closest('section'));
+        })();
+    </script>
 </body>
 
 </html>