Improve control monitor cards: green when running, detail modal with positions.

Co-authored-by: Cursor <cursoragent@cursor.com>

control/frontend/src/styles.css

@@ -191,12 +191,29 @@ input {
   display: flex;
   flex-direction: column;
   gap: 10px;
+  cursor: pointer;
+  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
+}
+
+.node-card:hover {
+  border-color: #3d5a73;
 }
 
 .node-card.offline {
   opacity: 0.85;
 }
 
+.node-card.running {
+  background: linear-gradient(160deg, rgba(46, 140, 90, 0.28), rgba(26, 34, 44, 0.95));
+  border-color: rgba(60, 179, 113, 0.65);
+  box-shadow: 0 0 0 1px rgba(60, 179, 113, 0.15);
+}
+
+.btn-running {
+  background: rgba(60, 179, 113, 0.85) !important;
+  cursor: default;
+}
+
 .node-card-head {
   display: flex;
   justify-content: space-between;
@@ -297,3 +314,75 @@ td {
   margin: 12px 0;
   word-break: break-all;
 }
+
+.modal-backdrop {
+  position: fixed;
+  inset: 0;
+  background: rgba(4, 8, 14, 0.72);
+  display: grid;
+  place-items: center;
+  padding: 16px;
+  z-index: 50;
+}
+
+.modal-panel {
+  width: min(720px, 100%);
+  max-height: min(90vh, 900px);
+  overflow: auto;
+  background: var(--panel);
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  padding: 18px;
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+
+.modal-panel.running {
+  border-color: rgba(60, 179, 113, 0.65);
+  box-shadow: 0 0 0 1px rgba(60, 179, 113, 0.2);
+}
+
+.modal-head {
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+  gap: 12px;
+}
+
+.modal-head h3 {
+  margin: 0 0 4px;
+}
+
+.modal-section h4 {
+  margin: 0 0 8px;
+  font-size: 0.95rem;
+}
+
+.detail-kv {
+  grid-template-columns: 1fr 1fr;
+}
+
+.detail-kv .span-2 {
+  grid-column: 1 / -1;
+}
+
+.legs-table-wrap {
+  overflow: auto;
+  border: 1px solid var(--line);
+  border-radius: 8px;
+}
+
+.legs-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 0.85rem;
+}
+
+.legs-table th,
+.legs-table td {
+  padding: 8px 10px;
+  border-bottom: 1px solid var(--line);
+  text-align: left;
+  white-space: nowrap;
+}