Refine options position accordion: default collapsed, 2dp PnL, card outside scroll.

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

lib/common/static/instance_theme.css

@@ -3213,6 +3213,29 @@ html[data-theme="light"] .options-estimate-row {
   font-size: 0.78rem;
   color: #b8c0dc;
 }
+.options-pos-live-layout {
+  display: flex;
+  flex-direction: column;
+  min-height: 0;
+  flex: 1;
+}
+.opt-pos-expanded-host {
+  flex-shrink: 0;
+  margin-top: 8px;
+  overflow: visible;
+}
+.opt-pos-expanded-host .opt-pos-card {
+  margin-bottom: 0;
+}
+.options-pos-live-pane--bars-only {
+  flex: 1;
+  min-height: 72px;
+  max-height: 140px;
+  overflow-y: auto;
+}
+.options-pos-subcard .options-pos-live-layout {
+  min-height: 0;
+}
 .options-pos-live-pane {
   flex: 1;
   min-height: 100px;
@@ -3284,8 +3307,7 @@ html[data-theme="light"] .options-estimate-row {
   background: #171d2a;
 }
 .opt-pos-accordion-item.is-expanded .opt-pos-bar {
-  border-radius: 8px 8px 0 0;
-  border-bottom-color: transparent;
+  border-color: #4a6fd8;
   background: #171d2a;
 }
 .opt-pos-bar-main {
@@ -3337,19 +3359,6 @@ html[data-theme="light"] .options-estimate-row {
 .opt-pos-accordion-item.is-expanded .opt-pos-bar-chevron {
   transform: rotate(90deg);
 }
-.opt-pos-accordion-body {
-  border: 1px solid #2a3348;
-  border-top: none;
-  border-radius: 0 0 8px 8px;
-  overflow: hidden;
-  background: #141923;
-}
-.opt-pos-card--nested {
-  margin-bottom: 0 !important;
-  border: none !important;
-  border-radius: 0 !important;
-  background: transparent !important;
-}
 .options-page-wrap .opt-pos-card .pos-card-symbol strong {
   font-size: 0.78rem;
 }