diff --git a/src/lib/components/Checklist.svelte b/src/lib/components/Checklist.svelte
index 07e4c06..3d8cb42 100644
--- a/src/lib/components/Checklist.svelte
+++ b/src/lib/components/Checklist.svelte
@@ -19,6 +19,7 @@
 
 	let { content, onChange }: Props = $props();
 
+	// svelte-ignore state_referenced_locally
 	let items = $state<ChecklistItem[]>(parseChecklist(content));
 	let doneExpanded = $state(true);
 	const flipDurationMs = 150;
diff --git a/src/lib/components/ImageLightbox.svelte b/src/lib/components/ImageLightbox.svelte
index 8369f2b..cd58225 100644
--- a/src/lib/components/ImageLightbox.svelte
+++ b/src/lib/components/ImageLightbox.svelte
@@ -9,6 +9,8 @@
 
 	const { src, alt, onClose }: Props = $props();
 
+	let dialogEl: HTMLDivElement | undefined = $state();
+
 	function handleKeydown(e: KeyboardEvent) {
 		if (e.key === 'Escape') {
 			e.stopPropagation();
@@ -21,14 +23,21 @@
 			onClose();
 		}
 	}
+
+	$effect(() => {
+		dialogEl?.focus();
+	});
 </script>
 
-<svelte:window onkeydown={handleKeydown} />
-
-<!-- svelte-ignore a11y_no_static_element_interactions -->
 <div
+	bind:this={dialogEl}
 	class="fixed inset-0 z-50 flex items-center justify-center bg-black/80 animate-[fade-in_150ms_ease-out]"
 	onclick={handleBackgroundClick}
+	onkeydown={handleKeydown}
+	role="dialog"
+	aria-modal="true"
+	aria-label="Image lightbox"
+	tabindex="-1"
 	data-testid="image-lightbox"
 >
 	<button
diff --git a/src/lib/components/ImageUpload.svelte b/src/lib/components/ImageUpload.svelte
index 6283750..6a8ad78 100644
--- a/src/lib/components/ImageUpload.svelte
+++ b/src/lib/components/ImageUpload.svelte
@@ -119,14 +119,18 @@
 				{@const isPending = 'pending' in attachment && attachment.pending}
 				{@const imgSrc = isPending ? attachment.path : `/api/notes/${noteId}/attachments?attachmentId=${attachment.id}`}
 				<div class="group relative">
-					<!-- svelte-ignore a11y_no_noninteractive_element_interactions a11y_click_events_have_key_events -->
-					<img
-						src={imgSrc}
-						alt={attachment.filename}
-						class="h-20 w-20 cursor-pointer rounded-sm object-cover {isPending ? 'opacity-70' : ''}"
+					<button
+						type="button"
+						class="h-20 w-20 cursor-pointer rounded-sm p-0 border-0 bg-transparent overflow-hidden"
 						onclick={() => { lightboxSrc = imgSrc; lightboxAlt = attachment.filename; }}
 						data-testid="attachment-thumbnail"
-					/>
+					>
+						<img
+							src={imgSrc}
+							alt={attachment.filename}
+							class="h-20 w-20 object-cover {isPending ? 'opacity-70' : ''}"
+						/>
+					</button>
 					{#if isPending}
 						<div class="absolute bottom-0.5 left-0.5 rounded-sm bg-black/50 p-0.5" title="Pending sync">
 							<RefreshCw class="h-3 w-3 text-white" />
diff --git a/src/lib/components/NoteCard.svelte b/src/lib/components/NoteCard.svelte
index 330dd9b..3ef6527 100644
--- a/src/lib/components/NoteCard.svelte
+++ b/src/lib/components/NoteCard.svelte
@@ -73,6 +73,7 @@
 	}
 </script>
 
+<!-- svelte-ignore a11y_no_noninteractive_element_to_interactive_role -->
 <article
 	class="group relative cursor-pointer rounded-sm border border-[var(--border-subtle)] p-4 transition-all hover:border-[var(--primary)] shadow-[var(--card-shadow)] hover:shadow-[var(--card-shadow-hover)] {fullHeight ? 'h-full' : ''}"
 	style={cardStyle}
@@ -88,15 +89,19 @@
 		<div class="-mx-4 -mt-4 mb-3 flex overflow-hidden rounded-t-sm" data-testid="card-thumbnails">
 			{#each featuredAttachments.slice(0, 3) as attachment}
 				<div class="relative min-w-0 flex-1">
-					<!-- svelte-ignore a11y_no_noninteractive_element_interactions a11y_click_events_have_key_events -->
-					<img
-						src="/api/notes/{note.id}/attachments?attachmentId={attachment.id}&thumb=1"
-						alt={attachment.filename}
-						class="h-24 w-full cursor-pointer object-cover"
-						loading="lazy"
+					<button
+						type="button"
+						class="h-24 w-full cursor-pointer p-0 border-0 bg-transparent"
 						onclick={(e) => { e.stopPropagation(); lightboxSrc = `/api/notes/${note.id}/attachments?attachmentId=${attachment.id}`; lightboxAlt = attachment.filename; }}
 						data-testid="card-thumbnail"
-					/>
+					>
+						<img
+							src="/api/notes/{note.id}/attachments?attachmentId={attachment.id}&thumb=1"
+							alt={attachment.filename}
+							class="h-24 w-full object-cover"
+							loading="lazy"
+						/>
+					</button>
 				</div>
 			{/each}
 			{#if featuredAttachments.length > 3}
diff --git a/src/lib/components/NoteEditor.svelte b/src/lib/components/NoteEditor.svelte
index 40e1e4d..1f5db35 100644
--- a/src/lib/components/NoteEditor.svelte
+++ b/src/lib/components/NoteEditor.svelte
@@ -33,6 +33,7 @@
 	let checklistMode = $state(note?.checklistMode ?? false);
 	let showColorPicker = $state(false);
 	let showImageUpload = $state(false);
+	// svelte-ignore state_referenced_locally
 	let rawMarkdownMode = $state(note?.checklistMode ?? false);
 	let textareaEl: HTMLTextAreaElement | undefined = $state();
 	let tiptapEditor: Editor | undefined = $state();
diff --git a/src/lib/components/TiptapEditor.svelte b/src/lib/components/TiptapEditor.svelte
index 3ce6d3d..d3e654f 100644
--- a/src/lib/components/TiptapEditor.svelte
+++ b/src/lib/components/TiptapEditor.svelte
@@ -57,11 +57,14 @@
 	});
 </script>
 
-<!-- svelte-ignore a11y_click_events_have_key_events a11y_no_static_element_interactions -->
+<!-- svelte-ignore a11y_click_events_have_key_events -->
 <div
 	bind:this={element}
 	class="tiptap-wrapper prose prose-sm flex min-h-[300px] max-w-none flex-col px-4 py-2 text-[var(--text)]"
 	data-testid="tiptap-editor"
+	role="textbox"
+	aria-multiline="true"
+	tabindex="0"
 	onclick={() => editor?.commands.focus()}
 ></div>
 
diff --git a/src/routes/(app)/settings/+page.svelte b/src/routes/(app)/settings/+page.svelte
index 3340b0b..5e721e8 100644
--- a/src/routes/(app)/settings/+page.svelte
+++ b/src/routes/(app)/settings/+page.svelte
@@ -14,7 +14,9 @@
 	let { data } = $props();
 
 	// Profile state
+	// svelte-ignore state_referenced_locally
 	let displayName = $state(data.user?.displayName || '');
+	// svelte-ignore state_referenced_locally
 	let email = $state(data.user?.email || '');
 	let profileMsg = $state('');
 	let profileError = $state(false);
diff --git a/src/routes/(app)/settings/users/+page.svelte b/src/routes/(app)/settings/users/+page.svelte
index 3f64cec..6f3cd32 100644
--- a/src/routes/(app)/settings/users/+page.svelte
+++ b/src/routes/(app)/settings/users/+page.svelte
@@ -3,6 +3,7 @@
 	import PasswordStrengthMeter from '$lib/components/PasswordStrengthMeter.svelte';
 
 	let { data } = $props();
+	// svelte-ignore state_referenced_locally
 	let users = $state<User[]>(data.users);
 
 	// Create user form
diff --git a/src/routes/(auth)/login/+page.svelte b/src/routes/(auth)/login/+page.svelte
index 1387f24..2e1367b 100644
--- a/src/routes/(auth)/login/+page.svelte
+++ b/src/routes/(auth)/login/+page.svelte
@@ -42,6 +42,7 @@
 		}
 	}
 
+	// svelte-ignore state_referenced_locally
 	const providers = data.providers ?? [];
 </script>