diff --git a/apps/mobile/src/app/index.tsx b/apps/mobile/src/app/index.tsx
index d188831..9d91d74 100644
--- a/apps/mobile/src/app/index.tsx
+++ b/apps/mobile/src/app/index.tsx
@@ -348,23 +348,29 @@ const styles = StyleSheet.create({
 	},
 	card: {
 		backgroundColor: '#111B34',
-		borderRadius: 16,
-		padding: 20,
+		borderRadius: 20,
+		padding: 24,
+		marginHorizontal: 4,
 		shadowColor: '#000',
-		shadowOpacity: 0.2,
-		shadowRadius: 12,
-		elevation: 6,
+		shadowOpacity: 0.3,
+		shadowRadius: 16,
+		shadowOffset: { width: 0, height: 4 },
+		elevation: 8,
+		borderWidth: 1,
+		borderColor: '#1E293B',
 	},
 	title: {
-		fontSize: 22,
+		fontSize: 24,
 		fontWeight: '700',
 		color: '#E5E7EB',
-		marginBottom: 4,
+		marginBottom: 6,
+		letterSpacing: 0.5,
 	},
 	subtitle: {
-		fontSize: 14,
+		fontSize: 15,
 		color: '#9AA0A6',
-		marginBottom: 16,
+		marginBottom: 24,
+		lineHeight: 20,
 	},
 	inputGroup: {
 		marginBottom: 12,
@@ -391,7 +397,7 @@ const styles = StyleSheet.create({
 		fontSize: 12,
 	},
 	actions: {
-		marginTop: 8,
+		marginTop: 20,
 	},
 	mutedText: {
 		color: '#9AA0A6',
@@ -399,14 +405,20 @@ const styles = StyleSheet.create({
 	},
 	submitButton: {
 		backgroundColor: '#2563EB',
-		borderRadius: 10,
-		paddingVertical: 14,
+		borderRadius: 12,
+		paddingVertical: 16,
 		alignItems: 'center',
+		shadowColor: '#2563EB',
+		shadowOpacity: 0.3,
+		shadowRadius: 8,
+		shadowOffset: { width: 0, height: 2 },
+		elevation: 4,
 	},
 	submitButtonText: {
 		color: '#FFFFFF',
 		fontWeight: '700',
 		fontSize: 16,
+		letterSpacing: 0.5,
 	},
 	buttonDisabled: {
 		backgroundColor: '#3B82F6',
@@ -416,15 +428,16 @@ const styles = StyleSheet.create({
 		backgroundColor: 'transparent',
 		borderWidth: 1,
 		borderColor: '#2A3655',
-		borderRadius: 10,
-		paddingVertical: 12,
+		borderRadius: 12,
+		paddingVertical: 14,
 		alignItems: 'center',
-		marginTop: 8,
+		marginTop: 12,
 	},
 	secondaryButtonText: {
 		color: '#C6CBD3',
 		fontWeight: '600',
 		fontSize: 14,
+		letterSpacing: 0.3,
 	},
 	listSection: {
 		marginTop: 20,
diff --git a/apps/mobile/src/components/form-components.tsx b/apps/mobile/src/components/form-components.tsx
index ab66c32..4e30511 100644
--- a/apps/mobile/src/components/form-components.tsx
+++ b/apps/mobile/src/components/form-components.tsx
@@ -108,13 +108,16 @@ export function PickerField<T>(
 	return (
 		<View style={styles.inputGroup}>
 			{label ? <Text style={styles.label}>{label}</Text> : null}
-			<Picker<T>
-				selectedValue={field.state.value}
-				onValueChange={(itemValue) => field.handleChange(itemValue)}
-				{...rest}
-			>
-				{props.children}
-			</Picker>
+			<View style={[styles.input, styles.pickerContainer]}>
+				<Picker<T>
+					style={styles.picker}
+					selectedValue={field.state.value}
+					onValueChange={(itemValue) => field.handleChange(itemValue)}
+					{...rest}
+				>
+					{props.children}
+				</Picker>
+			</View>
 			<FieldInfo />
 		</View>
 	);
@@ -171,7 +174,7 @@ export const { useAppForm, withForm, withFieldGroup } = createFormHook({
 
 const styles = StyleSheet.create({
 	inputGroup: {
-		marginBottom: 12,
+		marginBottom: 16,
 	},
 	label: {
 		marginBottom: 6,
@@ -214,4 +217,11 @@ const styles = StyleSheet.create({
 		color: '#FCA5A5',
 		fontSize: 12,
 	},
+	pickerContainer: {
+		paddingHorizontal: 8,
+		paddingVertical: 4,
+	},
+	picker: {
+		color: '#E5E7EB',
+	},
 });
diff --git a/apps/mobile/src/lib/secrets-manager.ts b/apps/mobile/src/lib/secrets-manager.ts
index f3505f6..ee226b5 100644
--- a/apps/mobile/src/lib/secrets-manager.ts
+++ b/apps/mobile/src/lib/secrets-manager.ts
@@ -7,6 +7,7 @@ import { queryClient } from './utils';
 const keys = {
 	storagePrefix: 'privateKey_',
 	manifestKey: 'privateKeysManifest',
+	chunkSize: 1800, // Safely under 2048 byte limit
 } as const;
 
 const keyManifestSchema = z.object({
@@ -15,7 +16,8 @@ const keyManifestSchema = z.object({
 		z.object({
 			id: z.string(),
 			priority: z.number(),
-			createdAt: z.date(),
+			createdAtMs: z.int(),
+			chunkCount: z.number().default(1),
 		}),
 	),
 });
@@ -31,6 +33,19 @@ async function getKeyManifest() {
 	return keyManifestSchema.parse(manifest);
 }
 
+// Utility functions for chunking large data
+function splitIntoChunks(data: string, chunkSize: number): string[] {
+	const chunks: string[] = [];
+	for (let i = 0; i < data.length; i += chunkSize) {
+		chunks.push(data.substring(i, i + chunkSize));
+	}
+	return chunks;
+}
+
+function getChunkKey(keyId: string, chunkIndex: number): string {
+	return `${keys.storagePrefix}${keyId}_chunk_${chunkIndex}`;
+}
+
 async function savePrivateKey(params: {
 	keyId: string;
 	privateKey: string;
@@ -42,17 +57,24 @@ async function savePrivateKey(params: {
 
 	if (existingKey) throw new Error('Key already exists');
 
+	// Split the private key into chunks if it's too large
+	const chunks = splitIntoChunks(params.privateKey, keys.chunkSize);
+	const chunkCount = chunks.length;
+
 	const newKey = {
 		id: params.keyId,
 		priority: params.priority,
-		createdAt: new Date(),
+		createdAtMs: Date.now(),
+		chunkCount,
 	};
 
 	manifest.keys.push(newKey);
-	await SecureStore.setItemAsync(
-		`${keys.storagePrefix}${params.keyId}`,
-		params.privateKey,
-	);
+
+	// Save each chunk separately
+	for (let i = 0; i < chunks.length; i++) {
+		await SecureStore.setItemAsync(getChunkKey(params.keyId, i), chunks[i]!);
+	}
+
 	await SecureStore.setItemAsync(keys.manifestKey, JSON.stringify(manifest));
 	await queryClient.invalidateQueries({ queryKey: [keyQueryKey] });
 }
@@ -61,10 +83,16 @@ async function getPrivateKey(keyId: string) {
 	const manifest = await getKeyManifest();
 	const key = manifest.keys.find((key) => key.id === keyId);
 	if (!key) throw new Error('Key not found');
-	const privateKey = await SecureStore.getItemAsync(
-		`${keys.storagePrefix}${keyId}`,
-	);
-	if (!privateKey) throw new Error('Key not found');
+
+	// Reassemble the private key from chunks
+	const chunks: string[] = [];
+	for (let i = 0; i < key.chunkCount; i++) {
+		const chunk = await SecureStore.getItemAsync(getChunkKey(keyId, i));
+		if (!chunk) throw new Error(`Key chunk ${i} not found`);
+		chunks.push(chunk);
+	}
+
+	const privateKey = chunks.join('');
 	return {
 		...key,
 		privateKey,
@@ -75,9 +103,15 @@ async function deletePrivateKey(keyId: string) {
 	const manifest = await getKeyManifest();
 	const key = manifest.keys.find((key) => key.id === keyId);
 	if (!key) throw new Error('Key not found');
+
 	manifest.keys = manifest.keys.filter((key) => key.id !== keyId);
+
+	// Delete all chunks for this key
+	for (let i = 0; i < key.chunkCount; i++) {
+		await SecureStore.deleteItemAsync(getChunkKey(keyId, i));
+	}
+
 	await SecureStore.setItemAsync(keys.manifestKey, JSON.stringify(manifest));
-	await SecureStore.deleteItemAsync(`${keys.storagePrefix}${keyId}`);
 	await queryClient.invalidateQueries({ queryKey: [keyQueryKey] });
 }
 
@@ -235,9 +269,9 @@ async function generateKeyPair(params: {
 }) {
 	const keyPair = await SSHClient.generateKeyPair(
 		params.type,
-		params.passphrase,
+		params.passphrase ?? '',
 		params.keySize,
-		params.comment,
+		params.comment ?? '',
 	);
 	return keyPair;
 }