diff --git a/src/components/board/CardThumbnail.tsx b/src/components/board/CardThumbnail.tsx
index b1ca0e7..c96623a 100644
--- a/src/components/board/CardThumbnail.tsx
+++ b/src/components/board/CardThumbnail.tsx
@@ -46,9 +46,9 @@ function getDueDateStatus(dueDate: string | null): { color: string; bgColor: str
 function getAgingOpacity(updatedAt: string): number {
   const days = (Date.now() - new Date(updatedAt).getTime()) / (1000 * 60 * 60 * 24);
   if (days <= 7) return 1.0;
-  if (days <= 14) return 0.85;
-  if (days <= 30) return 0.7;
-  return 0.55;
+  if (days <= 14) return 0.9;
+  if (days <= 30) return 0.8;
+  return 0.7;
 }
 
 /* ---------- Priority colors ---------- */
@@ -175,13 +175,14 @@ export function CardThumbnail({ card, boardLabels, columnId, onCardClick, isFocu
                 <span
                   className={`size-2.5 shrink-0 rounded-full ${card.priority === "urgent" ? "animate-pulse" : ""}`}
                   style={{ backgroundColor: PRIORITY_COLORS[card.priority] }}
-                  title={`Priority: ${card.priority}`}
+                  aria-label={`Priority: ${card.priority}`}
+                  role="img"
                 />
               )}
               {dueDateStatus && card.dueDate && (
                 <span
                   className={`font-mono text-xs rounded px-1 py-0.5 ${dueDateStatus.color} ${dueDateStatus.bgColor}`}
-                  title={dueDateStatus.label}
+                  aria-label={`Due: ${format(new Date(card.dueDate), "MMM d")} - ${dueDateStatus.label}`}
                 >
                   {format(new Date(card.dueDate), "MMM d")}
                 </span>
@@ -193,7 +194,7 @@ export function CardThumbnail({ card, boardLabels, columnId, onCardClick, isFocu
                 <DescriptionPreview description={card.description} />
               )}
               {card.attachments.length > 0 && (
-                <span className="flex items-center gap-0.5 text-pylon-text-secondary">
+                <span className="flex items-center gap-0.5 text-pylon-text-secondary" aria-label={`${card.attachments.length} attachment${card.attachments.length !== 1 ? "s" : ""}`} role="img">
                   <Paperclip className="size-3" />
                   <span className="font-mono text-xs">{card.attachments.length}</span>
                 </span>
@@ -343,6 +344,8 @@ function DescriptionPreview({ description }: { description: string }) {
       ref={iconRef}
       onMouseEnter={handleEnter}
       onMouseLeave={handleLeave}
+      aria-label="Has description"
+      role="img"
     >
       <AlignLeft className="size-3 text-pylon-text-secondary" />
       {createPortal(