diff --git a/public/css/style.css b/public/css/style.css
index 26be891..b4b0323 100644
--- a/public/css/style.css
+++ b/public/css/style.css
@@ -1998,12 +1998,6 @@ input:checked+.slider:before {
     display: flex !important;
     flex-direction: column;
     border-color: var(--accent-indigo);
-    animation: globeExpandIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
-}
-
-/* Collapse animation (plays while .expanded is still active to keep fixed positioning) */
-.globe-card.expanded.globe-collapsing {
-    animation: globeCollapseOut 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
 }
 
 /* Ensure children are visible */
@@ -2011,28 +2005,6 @@ input:checked+.slider:before {
     opacity: 1 !important;
 }
 
-@keyframes globeExpandIn {
-    from {
-        opacity: 0;
-        transform: scale(0.82);
-    }
-    to {
-        opacity: 1;
-        transform: scale(1);
-    }
-}
-
-@keyframes globeCollapseOut {
-    from {
-        opacity: 1;
-        transform: scale(1);
-    }
-    to {
-        opacity: 0;
-        transform: scale(0.82);
-    }
-}
-
 .globe-card.expanded .globe-body {
     height: calc(90vh - 120px) !important; /* Explicit calc height for ECharts reliability */
     width: 100% !important;
diff --git a/public/js/app.js b/public/js/app.js
index 14cd531..bc218b5 100644
--- a/public/js/app.js
+++ b/public/js/app.js
@@ -207,25 +207,85 @@
       dom.btnChangePassword.addEventListener('click', saveChangePassword);
     }
 
-    // Globe expansion
+    // Globe expansion (FLIP animation)
+    let savedGlobeRect = null;
+
     function expandGlobe() {
       if (dom.globeCard.classList.contains('expanded')) return;
+
+      // FLIP Step 1 — First: save original rect
+      savedGlobeRect = dom.globeCard.getBoundingClientRect();
+
+      // FLIP Step 2 — Last: apply expanded state
       dom.globeCard.classList.add('expanded');
       dom.btnExpandGlobe.classList.add('active');
-      dom.globeCard.addEventListener('animationend', function onExpand() {
-        dom.globeCard.removeEventListener('animationend', onExpand);
-        if (myMap2D) myMap2D.resize();
+
+      // Resize ECharts IMMEDIATELY so the map renders at full size
+      // This prevents the "flash" — content is correctly sized throughout
+      if (myMap2D) myMap2D.resize();
+
+      // FLIP Step 3 — Invert: calculate and apply inverse transform
+      const endRect = dom.globeCard.getBoundingClientRect();
+      const scaleX = savedGlobeRect.width / endRect.width;
+      const scaleY = savedGlobeRect.height / endRect.height;
+      const dx = (savedGlobeRect.left + savedGlobeRect.width / 2) - (endRect.left + endRect.width / 2);
+      const dy = (savedGlobeRect.top + savedGlobeRect.height / 2) - (endRect.top + endRect.height / 2);
+
+      dom.globeCard.style.willChange = 'transform, box-shadow';
+      dom.globeCard.style.transition = 'none';
+      dom.globeCard.style.transform = `translate(${dx}px, ${dy}px) scale(${scaleX}, ${scaleY})`;
+      dom.globeCard.style.boxShadow = '0 0 0 0 transparent, 0 0 0 0 transparent';
+
+      // Force reflow to commit the inverse state
+      dom.globeCard.offsetHeight;
+
+      // FLIP Step 4 — Play: animate to final state
+      dom.globeCard.style.transition = 'transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease';
+      dom.globeCard.style.transform = '';
+      dom.globeCard.style.boxShadow = '';
+
+      dom.globeCard.addEventListener('transitionend', function onEnd(e) {
+        if (e.propertyName !== 'transform') return;
+        dom.globeCard.removeEventListener('transitionend', onEnd);
+        dom.globeCard.style.transition = '';
+        dom.globeCard.style.willChange = '';
       });
     }
 
     function collapseGlobe() {
       if (!dom.globeCard.classList.contains('expanded')) return;
       if (dom.globeCard.classList.contains('globe-collapsing')) return;
+
+      if (!savedGlobeRect) {
+        dom.globeCard.classList.remove('expanded');
+        dom.btnExpandGlobe.classList.remove('active');
+        if (myMap2D) requestAnimationFrame(() => myMap2D.resize());
+        return;
+      }
+
       dom.globeCard.classList.add('globe-collapsing');
-      dom.globeCard.addEventListener('animationend', function onCollapse() {
-        dom.globeCard.removeEventListener('animationend', onCollapse);
+
+      // Calculate transform from expanded back to original position
+      const expandedRect = dom.globeCard.getBoundingClientRect();
+      const scaleX = savedGlobeRect.width / expandedRect.width;
+      const scaleY = savedGlobeRect.height / expandedRect.height;
+      const dx = (savedGlobeRect.left + savedGlobeRect.width / 2) - (expandedRect.left + expandedRect.width / 2);
+      const dy = (savedGlobeRect.top + savedGlobeRect.height / 2) - (expandedRect.top + expandedRect.height / 2);
+
+      dom.globeCard.style.willChange = 'transform, box-shadow';
+      dom.globeCard.style.transition = 'transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease';
+      dom.globeCard.style.transform = `translate(${dx}px, ${dy}px) scale(${scaleX}, ${scaleY})`;
+      dom.globeCard.style.boxShadow = '0 0 0 0 transparent, 0 0 0 0 transparent';
+
+      dom.globeCard.addEventListener('transitionend', function onEnd(e) {
+        if (e.propertyName !== 'transform') return;
+        dom.globeCard.removeEventListener('transitionend', onEnd);
         dom.globeCard.classList.remove('expanded', 'globe-collapsing');
         dom.btnExpandGlobe.classList.remove('active');
+        dom.globeCard.style.transition = '';
+        dom.globeCard.style.transform = '';
+        dom.globeCard.style.boxShadow = '';
+        dom.globeCard.style.willChange = '';
         if (myMap2D) requestAnimationFrame(() => myMap2D.resize());
       });
     }