fix(ui): review comments z-index stacking

packages/ui/src/components/session-review.css

@@ -44,10 +44,11 @@
 
   [data-component="sticky-accordion-header"] {
     top: 40px;
-
-    &[data-expanded]::before {
-      top: -40px;
   }
+
+  [data-component="sticky-accordion-header"][data-expanded]::before,
+  [data-slot="accordion-item"][data-expanded] [data-component="sticky-accordion-header"]::before {
+    top: -40px;
   }
 
   [data-slot="accordion-trigger"] {
@@ -79,6 +80,7 @@
 
   [data-slot="session-review-accordion-content"] {
     position: relative;
+    z-index: 0;
     overflow: hidden;
   }
 
@@ -211,7 +213,9 @@
   [data-slot="session-review-diff-wrapper"] {
     position: relative;
     overflow: hidden;
+    z-index: 0;
     --line-comment-z: 5;
     --line-comment-popover-z: 30;
+    --line-comment-open-z: 6;
   }
 }

packages/ui/src/components/session-turn.css

@@ -409,10 +409,11 @@
 
   [data-component="sticky-accordion-header"] {
     top: var(--sticky-header-height, 0px);
-
-    &[data-expanded]::before {
-      top: calc(-1 * var(--sticky-header-height, 0px));
   }
+
+  [data-component="sticky-accordion-header"][data-expanded]::before,
+  [data-slot="accordion-item"][data-expanded] [data-component="sticky-accordion-header"]::before {
+    top: calc(-1 * var(--sticky-header-height, 0px));
   }
 
   [data-slot="session-turn-accordion-trigger-content"] {

packages/ui/src/components/sticky-accordion-header.css

@@ -1,16 +1,18 @@
 [data-component="sticky-accordion-header"] {
   position: sticky;
   top: 0px;
+}
 
-  &[data-expanded] {
+[data-component="sticky-accordion-header"][data-expanded],
+[data-slot="accordion-item"][data-expanded] [data-component="sticky-accordion-header"] {
   z-index: 10;
+}
 
-    &::before {
+[data-component="sticky-accordion-header"][data-expanded]::before,
+[data-slot="accordion-item"][data-expanded] [data-component="sticky-accordion-header"]::before {
   content: "";
   z-index: -10;
   position: absolute;
   inset: 0;
   background-color: var(--background-stronger);
-    }
-  }
 }