diff --git a/src/components/FilterPanel.tsx b/src/components/FilterPanel.tsx
index 7cb855e4..62579619 100644
--- a/src/components/FilterPanel.tsx
+++ b/src/components/FilterPanel.tsx
@@ -104,6 +104,7 @@ export default function FilterPanel() {
               <button
                 key={dept}
                 onClick={() => toggleDepartment(dept)}
+                aria-pressed={isActive}
                 className={`rounded-md px-3 py-1.5 text-xs font-medium transition-all ${
                   isActive
                     ? 'bg-[#6C63FF] text-white'
@@ -135,6 +136,7 @@ export default function FilterPanel() {
               <button
                 key={risk}
                 onClick={() => toggleRiskLevel(risk)}
+                aria-pressed={isActive}
                 className={`rounded-md px-3 py-1.5 text-xs font-medium capitalize transition-all ${
                   isActive
                     ? `bg-[${colors.bg}] text-white`
@@ -167,6 +169,7 @@ export default function FilterPanel() {
               <button
                 key={type}
                 onClick={() => toggleEventType(type)}
+                aria-pressed={isActive}
                 className={`rounded-md px-3 py-1.5 text-xs font-medium capitalize transition-all ${
                   isActive
                     ? 'bg-[#6C63FF] text-white'
@@ -182,8 +185,13 @@ export default function FilterPanel() {
 
       {/* Show Only Unresolved Toggle */}
       <div className="flex items-center justify-between rounded-md border border-[#E5E5E5] bg-[#FAFAFA] p-3">
-        <span className="text-xs text-[#666666]">Show only unresolved</span>
+        <span id="show-unresolved-label" className="text-xs text-[#666666]">
+          Show only unresolved
+        </span>
         <button
+          role="switch"
+          aria-checked={filters.showOnlyUnresolved}
+          aria-labelledby="show-unresolved-label"
           onClick={() => setFilters({ showOnlyUnresolved: !filters.showOnlyUnresolved })}
           className={`relative inline-flex h-6 w-11 items-center rounded-full transition-colors ${
             filters.showOnlyUnresolved ? 'bg-[#6C63FF]' : 'bg-[#E5E5E5]'