Row accents survive the list divider on every row, not just the first

Tailwind 3's divide-<color> rule (`> :not([hidden]) ~ :not([hidden])`,
specificity 0,3,0, plus the dark-mode !important overrides in globals.css)
recolours every child but the first on all sides, so a row's own border
accent only ever showed on the first row.

- Notification dropdown: the purple GA and blue tenant bars are inset
  shadows now, so every such row keeps its bar.
- Geographic performance: the red outlier bar moves from the row to its
  first cell; it was grey on every outlier but the first table row.
- Tenant config report: the heavier separator between notification
  channels and between self-hosted AI clients moves to the cell
  (GROUP_SEPARATOR); the divider had shrunk it to a plain 1px line.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/Web/autopilot-monitor-web/app/admin/tenants/sections/SectionTenantConfigReport.tsx

@@ -88,6 +88,10 @@ function formatByKind(kind: RowKind | undefined, value: unknown): string {
 
 // ── Row and section primitives ───────────────────────────────────────────────
 
+// Heavier rule between grouped rows. It sits on the cell: the section tbody's divide utility overrides
+// a row's border width and color, while the collapsed table border keeps the wider cell edge.
+const GROUP_SEPARATOR = 'border-t-2 border-gray-200 dark:border-gray-600';
+
 interface ConfigRowProps {
   label: string;
   display: string;
@@ -185,8 +189,8 @@ function ChannelRows({ config }: { config: TenantConfiguration }) {
   return (
     <>
       {channels.map((ch, i) => (
-        <tr key={ch.id ?? i} className={i > 0 ? 'border-t-2 border-gray-200 dark:border-gray-600' : ''}>
-          <td colSpan={2} className="p-0">
+        <tr key={ch.id ?? i}>
+          <td colSpan={2} className={`p-0 ${i > 0 ? GROUP_SEPARATOR : ''}`}>
             <table className="w-full">
               <tbody className="divide-y divide-gray-100 dark:divide-gray-700">
                 <ConfigRow label="Channel" display={`${ch.name || ch.id}${ch.enabled === false ? ' (disabled)' : ''}`} />
@@ -214,8 +218,8 @@ function SelfHostedAiClientRows({ list }: { list: McpClientRegistrationListRespo
       <ConfigRow label="Self-hosted AI (platform switch)" display={list.enabled ? 'On' : 'Off'} />
       {list.registrations.length === 0 && <ConfigRow label="Self-hosted AI Clients" display="—" />}
       {list.registrations.map((r) => (
-        <tr key={r.registrationId} className="border-t-2 border-gray-200 dark:border-gray-600">
-          <td colSpan={2} className="p-0">
+        <tr key={r.registrationId}>
+          <td colSpan={2} className={`p-0 ${GROUP_SEPARATOR}`}>
             <table className="w-full">
               <tbody className="divide-y divide-gray-100 dark:divide-gray-700">
                 <ConfigRow label="Self-hosted AI Client" display={r.name} />

src/Web/autopilot-monitor-web/app/geographic-performance/page.tsx

@@ -436,8 +436,8 @@ export default function GeographicPerformancePage() {
                           key={loc.locationKey}
                           id={`loc-${loc.locationKey.replace(/[^a-zA-Z0-9]/g, "-")}`}
                           className={`hover:bg-gray-50 transition-colors cursor-pointer ${
-                            loc.isOutlier ? "border-l-4 border-l-red-400" : ""
-                          } ${selectedLocation === loc.locationKey ? "bg-blue-50" : ""}`}
+                            selectedLocation === loc.locationKey ? "bg-blue-50" : ""
+                          }`}
                           onClick={() => {
                             const days = timeRange === "7d" ? 7 : timeRange === "30d" ? 30 : 90;
                             // Carry the selected tenant into the drill-in so a cross-tenant caller (GA override
@@ -447,7 +447,8 @@ export default function GeographicPerformancePage() {
                           }}
                           onMouseEnter={() => setSelectedLocation(loc.locationKey)}
                         >
-                          <td className="px-4 py-3 text-sm text-gray-900">
+                          {/* Outlier accent on the cell, not the row: the tbody's divide color overrides a row's border-color. */}
+                          <td className={`px-4 py-3 text-sm text-gray-900 ${loc.isOutlier ? "border-l-4 border-l-red-400" : ""}`}>
                             <div className="flex items-center">
                               <span className="font-medium">{loc.locationKey}</span>
                               {loc.isOutlier && (

src/Web/autopilot-monitor-web/components/Navbar.tsx

@@ -298,9 +298,10 @@ export default function Navbar() {
                       </div>
                     ) : (
                       <div className="divide-y divide-gray-100">
+                        {/* Row accents are inset shadows, not border-l: the divide color overrides a child's border-color on every row but the first. */}
                         {/* Tenant-scoped persistent notifications (e.g. hardware rejections) — top */}
                         {tenantNotifications.map((tn) => (
-                          <div key={`tn-${tn.id}`} className={`px-4 py-3 hover:bg-blue-50/50 dark:hover:bg-blue-900/45 transition-colors border-l-4 border-blue-500 bg-blue-50/30 dark:bg-blue-900/20 ${tn.href ? 'cursor-pointer' : ''}`} onClick={() => { if (tn.href) openNotificationHref(tn.href); }}>
+                          <div key={`tn-${tn.id}`} className={`px-4 py-3 hover:bg-blue-50/50 dark:hover:bg-blue-900/45 transition-colors shadow-[inset_4px_0_0_0] shadow-blue-500 bg-blue-50/30 dark:bg-blue-900/20 ${tn.href ? 'cursor-pointer' : ''}`} onClick={() => { if (tn.href) openNotificationHref(tn.href); }}>
                             <div className="flex items-start justify-between">
                               <div className="flex items-start space-x-2.5 flex-1">
                                 <span className="text-lg">{tn.type === 'hardware_rejection' ? '🖥️' : '🔔'}</span>
@@ -333,7 +334,7 @@ export default function Navbar() {
                         ))}
                         {/* Persistent Global Admin Notifications */}
                         {visibleGlobal.map((gn) => (
-                          <div key={`ga-${gn.id}`} className={`px-4 py-3 hover:bg-purple-50/50 dark:hover:bg-purple-900/45 transition-colors border-l-4 border-purple-500 bg-purple-50/30 dark:bg-purple-900/20 ${gn.href ? 'cursor-pointer' : ''}`} onClick={() => { if (gn.href) openNotificationHref(gn.href); }}>
+                          <div key={`ga-${gn.id}`} className={`px-4 py-3 hover:bg-purple-50/50 dark:hover:bg-purple-900/45 transition-colors shadow-[inset_4px_0_0_0] shadow-purple-500 bg-purple-50/30 dark:bg-purple-900/20 ${gn.href ? 'cursor-pointer' : ''}`} onClick={() => { if (gn.href) openNotificationHref(gn.href); }}>
                             <div className="flex items-start justify-between">
                               <div className="flex items-start space-x-2.5 flex-1">
                                 <span className="text-lg">{gn.type === 'session_report' ? '\uD83D\uDCCB' : '\uD83C\uDF1F'}</span>