Task 10: Build InvestigationsView with results panel

- Created InvestigationsView component with expandable rows
- Status badges: Complete (green), Ongoing (amber), Live (pulsing green)
- Tree-indented results panel with methodology, results, tech stack
- View Results button for PharMetrics linking to medicines.charlwood.xyz
- Proper semantic table markup with scope attributes
- Traffic lights always accompanied by text labels
- Accordion behavior: only one row expanded at a time
- Height animation 200ms ease-out for expand/collapse
- Respects prefers-reduced-motion
- Updated PMRInterface to include InvestigationsView

src/components/PMRInterface.tsx

@@ -6,6 +6,7 @@ import { SummaryView } from './views/SummaryView'
 import { ConsultationsView } from './views/ConsultationsView'
 import { MedicationsView } from './views/MedicationsView'
 import { ProblemsView } from './views/ProblemsView'
+import { InvestigationsView } from './views/InvestigationsView'
 
 interface PMRInterfaceProps {
   children?: React.ReactNode
@@ -46,6 +47,8 @@ export function PMRInterface({ children }: PMRInterfaceProps) {
         return <MedicationsView />
       case 'problems':
         return <ProblemsView onNavigate={handleNavigate} />
+      case 'investigations':
+        return <InvestigationsView />
       default:
         return (
           <div className="bg-white border border-gray-200 rounded p-6">

src/components/views/InvestigationsView.tsx

@@ -0,0 +1,239 @@
+import { useState, useEffect, useRef } from 'react'
+import { ChevronDown, ChevronUp, ExternalLink, Circle } from 'lucide-react'
+import { investigations } from '@/data/investigations'
+import type { Investigation } from '@/types/pmr'
+
+type InvestigationStatus = 'Complete' | 'Ongoing' | 'Live'
+
+function StatusBadge({ status }: { status: InvestigationStatus }) {
+  if (status === 'Live') {
+    return (
+      <div className="flex items-center gap-2">
+        <span className="relative flex h-2 w-2">
+          <span className="animate-ping absolute inline-flex h-full w-full rounded-full bg-green-400 opacity-75"></span>
+          <Circle className="relative inline-flex rounded-full h-2 w-2 bg-green-500 fill-green-500" />
+        </span>
+        <span className="text-xs text-gray-600">Live</span>
+      </div>
+    )
+  }
+
+  const colorMap: Record<Exclude<InvestigationStatus, 'Live'>, { bg: string; label: string }> = {
+    Complete: { bg: 'bg-green-500', label: 'Complete' },
+    Ongoing: { bg: 'bg-amber-500', label: 'Ongoing' },
+  }
+
+  const { bg, label } = colorMap[status as Exclude<InvestigationStatus, 'Live'>]
+
+  return (
+    <div className="flex items-center gap-2">
+      <span
+        className={`w-2 h-2 rounded-full ${bg}`}
+        aria-label={`Status: ${status}`}
+        role="img"
+      />
+      <span className="text-xs text-gray-600">{label}</span>
+    </div>
+  )
+}
+
+function InvestigationRow({
+  investigation,
+  isExpanded,
+  onToggle,
+}: {
+  investigation: Investigation
+  isExpanded: boolean
+  onToggle: () => void
+}) {
+  const contentRef = useRef<HTMLDivElement>(null)
+  const [contentHeight, setContentHeight] = useState<number | undefined>(undefined)
+  const prefersReducedMotion = useRef(
+    window.matchMedia('(prefers-reduced-motion: reduce)').matches
+  ).current
+
+  useEffect(() => {
+    if (contentRef.current) {
+      setContentHeight(contentRef.current.scrollHeight)
+    }
+  }, [isExpanded])
+
+  return (
+    <>
+      <tr
+        className={`cursor-pointer hover:bg-blue-50 transition-colors ${
+          isExpanded ? 'bg-blue-50' : ''
+        }`}
+        onClick={onToggle}
+        aria-expanded={isExpanded}
+      >
+        <td className="border border-gray-200 px-3 py-2.5">
+          <span className="text-sm text-gray-900">{investigation.name}</span>
+        </td>
+        <td className="border border-gray-200 px-3 py-2.5">
+          <span className="font-mono text-xs text-gray-500">{investigation.requestedYear}</span>
+        </td>
+        <td className="border border-gray-200 px-3 py-2.5">
+          <StatusBadge status={investigation.status} />
+        </td>
+        <td className="border border-gray-200 px-3 py-2.5">
+          <span className="text-sm text-gray-700">{investigation.resultSummary}</span>
+        </td>
+        <td className="border border-gray-200 px-3 py-2.5 w-10">
+          <button
+            className="p-1 hover:bg-gray-100 rounded transition-colors"
+            aria-label={isExpanded ? 'Collapse' : 'Expand'}
+          >
+            {isExpanded ? (
+              <ChevronUp className="w-4 h-4 text-gray-400" />
+            ) : (
+              <ChevronDown className="w-4 h-4 text-gray-400" />
+            )}
+          </button>
+        </td>
+      </tr>
+      <tr>
+        <td colSpan={5} className="p-0 border border-gray-200">
+          <div
+            style={{
+              height: isExpanded ? contentHeight : 0,
+              overflow: 'hidden',
+              transition: prefersReducedMotion ? 'none' : 'height 200ms ease-out',
+            }}
+          >
+            <div ref={contentRef} className="bg-gray-50 p-4">
+              <div className="font-mono text-sm text-gray-700 leading-relaxed space-y-1">
+                <div className="flex">
+                  <span className="text-gray-400 w-40 shrink-0">Date Requested:</span>
+                  <span>{investigation.requestedYear}</span>
+                </div>
+                <div className="flex">
+                  <span className="text-gray-400 w-40 shrink-0">Date Reported:</span>
+                  <span>{investigation.reportedYear ?? 'Pending'}</span>
+                </div>
+                <div className="flex">
+                  <span className="text-gray-400 w-40 shrink-0">Status:</span>
+                  <span>
+                    {investigation.status}
+                    {investigation.status === 'Live' && investigation.externalUrl && (
+                      <> — Live at {investigation.externalUrl.replace('https://', '')}</>
+                    )}
+                  </span>
+                </div>
+                <div className="flex">
+                  <span className="text-gray-400 w-40 shrink-0">Requesting Clinician:</span>
+                  <span>{investigation.requestingClinician}</span>
+                </div>
+                <div className="flex">
+                  <span className="text-gray-400 w-40 shrink-0">Methodology:</span>
+                  <span className="flex-1">{investigation.methodology}</span>
+                </div>
+                <div className="flex">
+                  <span className="text-gray-400 w-40 shrink-0">Results:</span>
+                  <ul className="flex-1 space-y-1">
+                    {investigation.results.map((result, idx) => (
+                      <li key={idx} className="flex items-start gap-2">
+                        <span className="text-gray-300 mt-1">-</span>
+                        <span>{result}</span>
+                      </li>
+                    ))}
+                  </ul>
+                </div>
+                <div className="flex">
+                  <span className="text-gray-400 w-40 shrink-0">Tech Stack:</span>
+                  <span>{investigation.techStack.join(', ')}</span>
+                </div>
+              </div>
+              {investigation.externalUrl && (
+                <div className="mt-4 pt-4 border-t border-gray-200">
+                  <a
+                    href={investigation.externalUrl}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    onClick={(e) => e.stopPropagation()}
+                    className="inline-flex items-center gap-2 px-4 py-2 bg-nhsblue text-white text-sm font-medium rounded hover:bg-blue-700 transition-colors"
+                  >
+                    View Results
+                    <ExternalLink className="w-4 h-4" />
+                  </a>
+                </div>
+              )}
+            </div>
+          </div>
+        </td>
+      </tr>
+    </>
+  )
+}
+
+export function InvestigationsView() {
+  const [expandedId, setExpandedId] = useState<string | null>(null)
+
+  const handleToggle = (id: string) => {
+    setExpandedId(expandedId === id ? null : id)
+  }
+
+  return (
+    <div className="bg-white border border-gray-200 rounded">
+      <div className="bg-gray-50 border-b border-gray-200 px-4 py-3">
+        <h2 className="font-inter font-semibold text-sm uppercase tracking-wider text-gray-500">
+          Investigation Results
+        </h2>
+        <p className="font-inter text-xs text-gray-400 mt-1">
+          Projects presented as diagnostic investigations — tests that were ordered, performed, and returned results.
+        </p>
+      </div>
+      <div className="overflow-x-auto">
+        <table className="w-full border-collapse">
+          <thead>
+            <tr className="bg-gray-50">
+              <th
+                scope="col"
+                className="border border-gray-200 px-3 py-2 text-left font-inter font-semibold text-xs uppercase tracking-wider text-gray-400"
+              >
+                Test Name
+              </th>
+              <th
+                scope="col"
+                className="border border-gray-200 px-3 py-2 text-left font-inter font-semibold text-xs uppercase tracking-wider text-gray-400 w-24"
+              >
+                Requested
+              </th>
+              <th
+                scope="col"
+                className="border border-gray-200 px-3 py-2 text-left font-inter font-semibold text-xs uppercase tracking-wider text-gray-400 w-28"
+              >
+                Status
+              </th>
+              <th
+                scope="col"
+                className="border border-gray-200 px-3 py-2 text-left font-inter font-semibold text-xs uppercase tracking-wider text-gray-400"
+              >
+                Result
+              </th>
+              <th
+                scope="col"
+                className="border border-gray-200 px-3 py-2 text-left font-inter font-semibold text-xs uppercase tracking-wider text-gray-400 w-10"
+              >
+                <span className="sr-only">Expand</span>
+              </th>
+            </tr>
+          </thead>
+          <tbody>
+            {investigations.map((investigation) => (
+              <InvestigationRow
+                key={investigation.id}
+                investigation={investigation}
+                isExpanded={expandedId === investigation.id}
+                onToggle={() => handleToggle(investigation.id)}
+              />
+            ))}
+          </tbody>
+        </table>
+      </div>
+      {investigations.length === 0 && (
+        <div className="p-4 text-sm text-gray-500 text-center">No investigation results</div>
+      )}
+    </div>
+  )
+}