diff --git a/admin.html b/admin.html
index fe5db7f..57b1964 100644
--- a/admin.html
+++ b/admin.html
@@ -1560,11 +1560,15 @@ function renderIntelGraph() {
     .attr('fill', d => SECTOR_COLOR[d.sector] || '#888')
     .attr('stroke', 'transparent')
     .attr('stroke-width', 2)
-    .on('mouseenter', function () {
-      d3.select(this).attr('stroke', 'rgba(255,255,255,0.85)');
+    .on('mouseenter', function (ev, d) {
+      if (d.id !== graphSelectedId) {
+        d3.select(this).attr('stroke', 'rgba(255,255,255,0.6)');
+      }
     })
-    .on('mouseleave', function () {
-      d3.select(this).attr('stroke', 'transparent');
+    .on('mouseleave', function (ev, d) {
+      if (d.id !== graphSelectedId) {
+        d3.select(this).attr('stroke', 'transparent');
+      }
     })
     .on('click', (ev, d) => {
       ev.stopPropagation();
@@ -1599,6 +1603,8 @@ function renderIntelGraph() {
     .force('link',    d3.forceLink(edgesCopy).id(d => d.id).distance(80))
     .force('charge',  d3.forceManyBody().strength(-300))
     .force('center',  d3.forceCenter(width / 2, height / 2))
+    .force('x',       d3.forceX(width / 2).strength(0.07))
+    .force('y',       d3.forceY(height / 2).strength(0.07))
     .force('collide', d3.forceCollide(d => graphNodeRadius(d) + 4));
 
   sim.on('tick', () => {
@@ -1665,6 +1671,10 @@ function applyGraphFilters() {
     .style('display', d => visibleIds.has(d.id) ? null : 'none')
     .style('opacity', d => (lit && !lit.has(d.id)) ? 0.15 : 1);
 
+  nodeSel.select('circle')
+    .attr('stroke', d => d.id === graphSelectedId ? '#ffffff' : 'transparent')
+    .attr('stroke-width', d => d.id === graphSelectedId ? 2.5 : 2);
+
   linkSel
     .style('display', e => {
       if (filter !== 'all' && e.type !== filter) return 'none';