diff --git a/apps/web/app/(dashboard)/dashboard/documents/[docId]/page.tsx b/apps/web/app/(dashboard)/dashboard/documents/[docId]/page.tsx
index c783cc8..e4abe23 100644
--- a/apps/web/app/(dashboard)/dashboard/documents/[docId]/page.tsx
+++ b/apps/web/app/(dashboard)/dashboard/documents/[docId]/page.tsx
@@ -183,9 +183,7 @@ function SectionTreeNode({
               )}
             </div>
             {section.summary && (
-              <div className="text-secondary">
-                <MarkdownSummary content={section.summary} />
-              </div>
+              <MarkdownSummary content={section.summary} />
             )}
           </div>
 
@@ -345,8 +343,19 @@ export default function DocumentDetailPage({
       });
       if (res.ok) {
         router.push("/dashboard/documents");
+        return;
       }
-    } catch {
+      const body = (await res.json().catch(() => null)) as {
+        error?: string;
+      } | null;
+      alert(
+        `Delete failed (HTTP ${res.status})${body?.error ? `: ${body.error}` : ""}`,
+      );
+      setIsDeleting(false);
+    } catch (e) {
+      alert(
+        `Delete failed: ${e instanceof Error ? e.message : "network error"}`,
+      );
       setIsDeleting(false);
     }
   }, [docId, router]);
diff --git a/apps/web/app/(dashboard)/dashboard/documents/page.tsx b/apps/web/app/(dashboard)/dashboard/documents/page.tsx
index a29d92a..26e0abb 100644
--- a/apps/web/app/(dashboard)/dashboard/documents/page.tsx
+++ b/apps/web/app/(dashboard)/dashboard/documents/page.tsx
@@ -127,9 +127,18 @@ export default function DocumentsPage() {
                 : prev,
             { revalidate: false },
           );
+        } else {
+          const body = (await res.json().catch(() => null)) as {
+            error?: string;
+          } | null;
+          alert(
+            `Delete failed (HTTP ${res.status})${body?.error ? `: ${body.error}` : ""}`,
+          );
         }
-      } catch {
-        // retry silently
+      } catch (e) {
+        alert(
+          `Delete failed: ${e instanceof Error ? e.message : "network error"}`,
+        );
       } finally {
         setDeletingId(null);
       }
diff --git a/apps/web/components/ui/markdown.tsx b/apps/web/components/ui/markdown.tsx
index ea35845..f4f892f 100644
--- a/apps/web/components/ui/markdown.tsx
+++ b/apps/web/components/ui/markdown.tsx
@@ -46,9 +46,11 @@ export function MarkdownSummary({ content, className }: MarkdownProps) {
       className={cn(
         "prose prose-xs max-w-none",
         "prose-headings:hidden",
-        "prose-p:text-muted-foreground prose-p:text-sm prose-p:leading-relaxed prose-p:my-0",
+        // Readable dark-gray summary text (muted-foreground was too faint
+        // on white cards). foreground/75 = ink at 75% opacity.
+        "prose-p:text-foreground/75 prose-p:text-sm prose-p:leading-relaxed prose-p:my-0",
         "prose-strong:text-foreground prose-strong:font-medium",
-        "prose-ul:my-1 prose-ol:my-1 prose-li:text-sm prose-li:text-muted-foreground prose-li:my-0",
+        "prose-ul:my-1 prose-ol:my-1 prose-li:text-sm prose-li:text-foreground/75 prose-li:my-0",
         "prose-code:text-xs prose-code:bg-muted prose-code:px-1 prose-code:py-0.5 prose-code:rounded",
         "[&>*:first-child]:mt-0 [&>*:last-child]:mb-0",
         className