Phase 2 mobile: share UI, advanced layers, analytics dashboard, builder depth

- ShapeLayer type; cardStore reorderLayer + profile/link actions (undoable)
- QRCodeView (renders on-device qr matrix); CardFace renders shape + qr layers
- share.ts / analytics.ts API clients
- ShareSheet (QR overlay, OS share, Add to Google Wallet); per-card analytics
  dashboard (summary + top countries + activity feed)
- Builder: LayerPropertySheet, LayerOrderPanel, ProfileEditor, shape creation

25 logic unit tests; tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

cardclaws-mobile/__tests__/unit/cardStore.test.ts

@@ -99,6 +99,63 @@ describe("cardStore undo/redo", () => {
     expect(undos).toBe(MAX_HISTORY);
   });
 
+  it("reorderLayer swaps adjacent z-indexes and is reversible", () => {
+    const a = { ...textLayer("A"), zIndex: 1 };
+    const b = { ...textLayer("B"), zIndex: 2 };
+    useCardStore.getState().addLayer("face", a);
+    useCardStore.getState().addLayer("face", b);
+
+    // Move A up: A and B swap z-indexes → A above B.
+    useCardStore.getState().reorderLayer("face", a.id, "up");
+    const za = () =>
+      useCardStore.getState().card!.face.layers.find((l) => l.id === a.id)!.zIndex;
+    const zb = () =>
+      useCardStore.getState().card!.face.layers.find((l) => l.id === b.id)!.zIndex;
+    expect(za()).toBe(2);
+    expect(zb()).toBe(1);
+
+    useCardStore.getState().undo();
+    expect(za()).toBe(1);
+    expect(zb()).toBe(2);
+  });
+
+  it("reorderLayer past an edge is a no-op", () => {
+    const a = { ...textLayer("A"), zIndex: 1 };
+    useCardStore.getState().addLayer("face", a);
+    const before = useCardStore.getState().past.length;
+    useCardStore.getState().reorderLayer("face", a.id, "down"); // already bottom
+    // The mutation still snapshots, but ordering is unchanged.
+    expect(useCardStore.getState().card!.face.layers[0].zIndex).toBe(1);
+    expect(useCardStore.getState().past.length).toBe(before + 1);
+  });
+
+  it("edits profile bio and links with undo support", () => {
+    const s = useCardStore.getState();
+    s.setBio("Founder & CEO");
+    expect(useCardStore.getState().card?.profile?.bio).toBe("Founder & CEO");
+
+    useCardStore.getState().addLink({
+      id: "l1",
+      type: "linkedin",
+      label: "LinkedIn",
+      url: "https://linkedin.com/in/omar",
+      iconSlug: "linkedin",
+    });
+    expect(useCardStore.getState().card?.profile?.links).toHaveLength(1);
+
+    useCardStore.getState().updateLink("l1", { label: "My LinkedIn" });
+    expect(useCardStore.getState().card?.profile?.links[0].label).toBe("My LinkedIn");
+
+    useCardStore.getState().removeLink("l1");
+    expect(useCardStore.getState().card?.profile?.links).toHaveLength(0);
+
+    // Undo the removal, then the label edit.
+    useCardStore.getState().undo();
+    expect(useCardStore.getState().card?.profile?.links).toHaveLength(1);
+    useCardStore.getState().undo();
+    expect(useCardStore.getState().card?.profile?.links[0].label).toBe("LinkedIn");
+  });
+
   it("undo/redo are no-ops at the ends", () => {
     expect(() => useCardStore.getState().undo()).not.toThrow();
     expect(() => useCardStore.getState().redo()).not.toThrow();

cardclaws-mobile/app/card/[cardId]/analytics.tsx

@@ -0,0 +1,134 @@
+import { useQuery } from "@tanstack/react-query";
+import { Stack, useLocalSearchParams } from "expo-router";
+import { ActivityIndicator, ScrollView, StyleSheet, Text, View } from "react-native";
+import { FeedEvent, GeoCount, getFeed, getGeo, getSummary } from "../../../src/api/analytics";
+
+const EVENT_LABELS: Record<string, string> = {
+  profile_visit: "Profile visit",
+  qr_scan: "QR scan",
+  nfc_tap: "NFC tap",
+  contact_save: "Contact saved",
+  link_click: "Link click",
+  wallet_add: "Added to wallet",
+};
+
+export default function AnalyticsScreen() {
+  const { cardId } = useLocalSearchParams<{ cardId: string }>();
+
+  const summary = useQuery({
+    queryKey: ["analytics", cardId, "summary"],
+    queryFn: () => getSummary(cardId),
+    enabled: !!cardId,
+  });
+  const feed = useQuery({
+    queryKey: ["analytics", cardId, "feed"],
+    queryFn: () => getFeed(cardId),
+    enabled: !!cardId,
+  });
+  const geo = useQuery({
+    queryKey: ["analytics", cardId, "geo"],
+    queryFn: () => getGeo(cardId),
+    enabled: !!cardId,
+  });
+
+  if (summary.isLoading) {
+    return (
+      <View style={styles.center}>
+        <ActivityIndicator color="#ff3b30" />
+      </View>
+    );
+  }
+
+  const s = summary.data;
+
+  return (
+    <ScrollView style={styles.root} contentContainerStyle={styles.content}>
+      <Stack.Screen options={{ title: "Analytics" }} />
+
+      <View style={styles.metrics}>
+        <Metric label="Visits (24h)" value={s?.visits24h ?? 0} />
+        <Metric label="Visits (7d)" value={s?.visits7d ?? 0} />
+        <Metric label="Total visits" value={s?.totalVisits ?? 0} />
+        <Metric label="QR scans" value={s?.qrScans ?? 0} />
+        <Metric label="Contact saves" value={s?.contactSaves ?? 0} />
+        <Metric label="Link clicks" value={s?.linkClicks ?? 0} />
+      </View>
+
+      {geo.data && geo.data.length > 0 && (
+        <Section title="Top countries">
+          {geo.data.slice(0, 5).map((g: GeoCount) => (
+            <Row key={g.country} left={g.country} right={`${g.visits}`} />
+          ))}
+        </Section>
+      )}
+
+      <Section title="Recent activity">
+        {(feed.data ?? []).length === 0 ? (
+          <Text style={styles.empty}>No activity yet.</Text>
+        ) : (
+          (feed.data ?? []).slice(0, 30).map((e: FeedEvent) => (
+            <Row
+              key={e.id}
+              left={EVENT_LABELS[e.eventType] ?? e.eventType}
+              right={[e.city, e.country].filter(Boolean).join(", ") || "—"}
+            />
+          ))
+        )}
+      </Section>
+    </ScrollView>
+  );
+}
+
+function Metric({ label, value }: { label: string; value: number }) {
+  return (
+    <View style={styles.metric}>
+      <Text style={styles.metricValue}>{value}</Text>
+      <Text style={styles.metricLabel}>{label}</Text>
+    </View>
+  );
+}
+
+function Section({ title, children }: { title: string; children: React.ReactNode }) {
+  return (
+    <View style={styles.section}>
+      <Text style={styles.sectionTitle}>{title}</Text>
+      {children}
+    </View>
+  );
+}
+
+function Row({ left, right }: { left: string; right: string }) {
+  return (
+    <View style={styles.rowItem}>
+      <Text style={styles.rowLeft}>{left}</Text>
+      <Text style={styles.rowRight}>{right}</Text>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  root: { flex: 1, backgroundColor: "#0a0a0c" },
+  content: { padding: 16, gap: 20 },
+  center: { flex: 1, alignItems: "center", justifyContent: "center", backgroundColor: "#0a0a0c" },
+  metrics: { flexDirection: "row", flexWrap: "wrap", gap: 12 },
+  metric: {
+    backgroundColor: "#15151a",
+    borderRadius: 16,
+    padding: 16,
+    width: "47%",
+  },
+  metricValue: { color: "#f5f5f7", fontSize: 28, fontWeight: "800" },
+  metricLabel: { color: "#9a9aa0", fontSize: 13, marginTop: 2 },
+  section: { gap: 8 },
+  sectionTitle: { color: "#f5f5f7", fontSize: 17, fontWeight: "700" },
+  rowItem: {
+    flexDirection: "row",
+    justifyContent: "space-between",
+    paddingVertical: 12,
+    borderBottomColor: "#1a1a1f",
+    borderBottomWidth: 1,
+  },
+  rowLeft: { color: "#f5f5f7", fontSize: 15 },
+  rowRight: { color: "#9a9aa0", fontSize: 14 },
+  empty: { color: "#6b6b70" },
+});

cardclaws-mobile/app/card/[cardId]/view.tsx

@@ -1,11 +1,16 @@
 import { useQuery } from "@tanstack/react-query";
-import { Stack, useLocalSearchParams } from "expo-router";
+import { Stack, useLocalSearchParams, useRouter } from "expo-router";
-import { ActivityIndicator, View } from "react-native";
+import { useState } from "react";
+import { ActivityIndicator, Pressable, StyleSheet, Text, View } from "react-native";
 import { getCard } from "../../../src/api/cards";
 import { CardViewer } from "../../../src/components/card/CardViewer";
+import { ShareSheet } from "../../../src/components/share/ShareSheet";
 
 export default function CardViewScreen() {
   const { cardId } = useLocalSearchParams<{ cardId: string }>();
+  const router = useRouter();
+  const [sharing, setSharing] = useState(false);
+
   const { data, isLoading } = useQuery({
     queryKey: ["card", cardId],
     queryFn: () => getCard(cardId),
@@ -14,14 +19,44 @@ export default function CardViewScreen() {
 
   return (
     <View style={{ flex: 1, backgroundColor: "#0a0a0c" }}>
-      <Stack.Screen options={{ title: "", headerTransparent: true }} />
+      <Stack.Screen
+        options={{
+          title: "",
+          headerTransparent: true,
+          headerRight: () => (
+            <View style={styles.actions}>
+              <Pressable onPress={() => router.push(`/card/${cardId}/analytics`)}>
+                <Text style={styles.headerBtn}>Stats</Text>
+              </Pressable>
+              <Pressable onPress={() => setSharing(true)}>
+                <Text style={[styles.headerBtn, styles.share]}>Share</Text>
+              </Pressable>
+            </View>
+          ),
+        }}
+      />
       {isLoading || !data ? (
-        <View style={{ flex: 1, alignItems: "center", justifyContent: "center" }}>
+        <View style={styles.center}>
           <ActivityIndicator color="#ff3b30" />
         </View>
       ) : (
-        <CardViewer card={data.definition} />
+        <>
+          <CardViewer card={data.definition} />
+          <ShareSheet
+            cardId={cardId}
+            handle={data.handle}
+            visible={sharing}
+            onClose={() => setSharing(false)}
+          />
+        </>
       )}
     </View>
   );
 }
+
+const styles = StyleSheet.create({
+  center: { flex: 1, alignItems: "center", justifyContent: "center" },
+  actions: { flexDirection: "row", gap: 16 },
+  headerBtn: { color: "#f5f5f7", fontWeight: "600", fontSize: 16 },
+  share: { color: "#ff3b30" },
+});

cardclaws-mobile/src/api/analytics.ts

@@ -0,0 +1,38 @@
+// Analytics API (PRD §13.5).
+
+import { api } from "./client";
+
+export interface AnalyticsSummary {
+  totalVisits: number;
+  visits7d: number;
+  visits24h: number;
+  qrScans: number;
+  contactSaves: number;
+  linkClicks: number;
+}
+
+export interface FeedEvent {
+  id: number;
+  eventType: string;
+  shareToken: string | null;
+  country: string | null;
+  city: string | null;
+  occurredAt: string;
+}
+
+export interface GeoCount {
+  country: string;
+  visits: number;
+}
+
+export async function getSummary(cardId: string): Promise<AnalyticsSummary> {
+  return (await api.get<AnalyticsSummary>(`/v1/cards/${cardId}/analytics`)).data;
+}
+
+export async function getFeed(cardId: string): Promise<FeedEvent[]> {
+  return (await api.get<FeedEvent[]>(`/v1/cards/${cardId}/analytics/feed`)).data;
+}
+
+export async function getGeo(cardId: string): Promise<GeoCount[]> {
+  return (await api.get<GeoCount[]>(`/v1/cards/${cardId}/analytics/geo`)).data;
+}

cardclaws-mobile/src/api/cards.ts

@@ -42,3 +42,9 @@ export async function publishCard(id: string): Promise<CardRecord> {
 export function appleWalletUrl(id: string): string {
   return `${api.defaults.baseURL}/v1/cards/${id}/wallet/apple`;
 }
+
+/** Fetch the "Add to Google Wallet" save URL for a card. */
+export async function googleWalletSaveUrl(id: string): Promise<string> {
+  const res = await api.post<{ saveUrl: string }>(`/v1/cards/${id}/wallet/google`);
+  return res.data.saveUrl;
+}

cardclaws-mobile/src/api/client.ts

@@ -4,6 +4,8 @@ import axios, { AxiosError, InternalAxiosRequestConfig } from "axios";
 import { useAuthStore } from "../stores/authStore";
 
 export const API_BASE = process.env.EXPO_PUBLIC_API_BASE ?? "http://localhost:8080";
+/** Public profile base, e.g. `https://cardclaws.com` — used to build QR/profile URLs. */
+export const PROFILE_BASE = process.env.EXPO_PUBLIC_PROFILE_BASE ?? "https://cardclaws.com";
 
 export const api = axios.create({ baseURL: API_BASE });
 

cardclaws-mobile/src/api/share.ts

@@ -0,0 +1,31 @@
+// Share-link API (PRD §13.4).
+
+import { api } from "./client";
+
+export type ShareModality =
+  | "nfc"
+  | "qr"
+  | "airdrop"
+  | "imessage"
+  | "email"
+  | "link"
+  | "wallet"
+  | "contact";
+
+export interface ShareLink {
+  token: string;
+  url: string;
+}
+
+/** Create a tracked share link for a card and return its short URL. */
+export async function createShareLink(
+  cardId: string,
+  modality: ShareModality,
+  campaign?: string,
+): Promise<ShareLink> {
+  const res = await api.post<ShareLink>(`/v1/cards/${cardId}/share`, {
+    modality,
+    campaign,
+  });
+  return res.data;
+}

cardclaws-mobile/src/components/builder/BuilderCanvas.tsx

@@ -6,8 +6,11 @@ import { useState } from "react";
 import { Pressable, StyleSheet, Text, TextInput, useWindowDimensions, View } from "react-native";
 import { CardFace } from "../card/CardFace";
 import { ColorPaletteEditor } from "./ColorPaletteEditor";
+import { LayerOrderPanel } from "./LayerOrderPanel";
+import { LayerPropertySheet } from "./LayerPropertySheet";
+import { ProfileEditor } from "./ProfileEditor";
 import { Side, newLayerId, useCardStore } from "../../stores/cardStore";
-import { TextLayer } from "../../types/card";
+import { ShapeLayer, TextLayer } from "../../types/card";
 
 export function BuilderCanvas({ side = "face" as Side }: { side?: Side }) {
   const { width, height } = useWindowDimensions();
@@ -20,6 +23,9 @@ export function BuilderCanvas({ side = "face" as Side }: { side?: Side }) {
   const canRedo = useCardStore((s) => s.canRedo());
 
   const [draftText, setDraftText] = useState("");
+  const [orderOpen, setOrderOpen] = useState(false);
+  const [profileOpen, setProfileOpen] = useState(false);
+  const [selectedLayerId, setSelectedLayerId] = useState<string | null>(null);
 
   if (!card) return null;
   const cardWidth = Math.min(width * 0.9, 360);
@@ -49,6 +55,24 @@ export function BuilderCanvas({ side = "face" as Side }: { side?: Side }) {
     setDraftText("");
   };
 
+  const addShape = () => {
+    const layer: ShapeLayer = {
+      id: newLayerId(),
+      type: "shape",
+      x: 0.1,
+      y: 0.5,
+      width: 0.35,
+      height: 0.2,
+      opacity: 1,
+      zIndex: card[side].layers.length + 1,
+      shape: "rectangle",
+      fill: "#ff3b30",
+      strokeWidth: 0,
+      cornerRadius: 12,
+    };
+    addLayer(side, layer);
+  };
+
   return (
     <View style={styles.root}>
       <View style={styles.canvasArea}>
@@ -74,6 +98,21 @@ export function BuilderCanvas({ side = "face" as Side }: { side?: Side }) {
         <ToolButton label="↶" onPress={undo} disabled={!canUndo} />
         <ToolButton label="↷" onPress={redo} disabled={!canRedo} />
       </View>
+
+      <View style={styles.secondaryBar}>
+        <ToolButton label="Shape" onPress={addShape} />
+        <ToolButton label="Layers" onPress={() => setOrderOpen(true)} />
+        <ToolButton label="Profile" onPress={() => setProfileOpen(true)} />
+      </View>
+
+      <LayerOrderPanel
+        side={side}
+        visible={orderOpen}
+        onClose={() => setOrderOpen(false)}
+        onSelect={setSelectedLayerId}
+      />
+      <LayerPropertySheet side={side} layerId={selectedLayerId} onClose={() => setSelectedLayerId(null)} />
+      <ProfileEditor visible={profileOpen} onClose={() => setProfileOpen(false)} />
     </View>
   );
 }
@@ -107,6 +146,12 @@ const styles = StyleSheet.create({
     padding: 16,
     alignItems: "center",
   },
+  secondaryBar: {
+    flexDirection: "row",
+    gap: 8,
+    paddingHorizontal: 16,
+    paddingBottom: 16,
+  },
   input: {
     flex: 1,
     backgroundColor: "#1a1a1f",

cardclaws-mobile/src/components/builder/LayerOrderPanel.tsx

@@ -0,0 +1,93 @@
+// Layer list with reorder + select (PRD §6.1.5). Layers shown top-to-bottom by
+// descending z-index (front to back). Tapping a row selects it for editing.
+
+import { Modal, Pressable, ScrollView, StyleSheet, Text, View } from "react-native";
+import { Side, useCardStore } from "../../stores/cardStore";
+import { Layer, TextLayer } from "../../types/card";
+
+interface Props {
+  side: Side;
+  visible: boolean;
+  onClose: () => void;
+  onSelect: (layerId: string) => void;
+}
+
+function describe(layer: Layer): string {
+  if (layer.type === "text") return `Text — “${(layer as TextLayer).text}”`;
+  return layer.type.charAt(0).toUpperCase() + layer.type.slice(1);
+}
+
+export function LayerOrderPanel({ side, visible, onClose, onSelect }: Props) {
+  const card = useCardStore((s) => s.card);
+  const reorderLayer = useCardStore((s) => s.reorderLayer);
+
+  const layers = [...(card?.[side].layers ?? [])].sort((a, b) => b.zIndex - a.zIndex);
+
+  return (
+    <Modal visible={visible} transparent animationType="slide" onRequestClose={onClose}>
+      <Pressable style={styles.backdrop} onPress={onClose}>
+        <Pressable style={styles.sheet} onPress={(e) => e.stopPropagation()}>
+          <View style={styles.grabber} />
+          <Text style={styles.title}>Layers</Text>
+          <ScrollView>
+            {layers.length === 0 && <Text style={styles.empty}>No layers yet.</Text>}
+            {layers.map((layer) => (
+              <View key={layer.id} style={styles.row}>
+                <Pressable
+                  style={styles.rowLabel}
+                  onPress={() => {
+                    onSelect(layer.id);
+                    onClose();
+                  }}
+                >
+                  <Text style={styles.rowText} numberOfLines={1}>
+                    {describe(layer)}
+                  </Text>
+                </Pressable>
+                <Pressable onPress={() => reorderLayer(side, layer.id, "up")} hitSlop={8}>
+                  <Text style={styles.move}>↑</Text>
+                </Pressable>
+                <Pressable onPress={() => reorderLayer(side, layer.id, "down")} hitSlop={8}>
+                  <Text style={styles.move}>↓</Text>
+                </Pressable>
+              </View>
+            ))}
+          </ScrollView>
+        </Pressable>
+      </Pressable>
+    </Modal>
+  );
+}
+
+const styles = StyleSheet.create({
+  backdrop: { flex: 1, backgroundColor: "rgba(0,0,0,0.5)", justifyContent: "flex-end" },
+  sheet: {
+    backgroundColor: "#15151a",
+    borderTopLeftRadius: 24,
+    borderTopRightRadius: 24,
+    padding: 20,
+    paddingBottom: 36,
+    maxHeight: "70%",
+  },
+  grabber: {
+    alignSelf: "center",
+    width: 40,
+    height: 4,
+    borderRadius: 2,
+    backgroundColor: "#3a3a40",
+    marginBottom: 8,
+  },
+  title: { color: "#f5f5f7", fontSize: 20, fontWeight: "700", marginBottom: 8 },
+  empty: { color: "#6b6b70", paddingVertical: 12 },
+  row: {
+    flexDirection: "row",
+    alignItems: "center",
+    gap: 16,
+    paddingVertical: 12,
+    borderBottomColor: "#1a1a1f",
+    borderBottomWidth: 1,
+  },
+  rowLabel: { flex: 1 },
+  rowText: { color: "#f5f5f7", fontSize: 15 },
+  move: { color: "#9a9aa0", fontSize: 22, width: 24, textAlign: "center" },
+});

cardclaws-mobile/src/components/builder/LayerPropertySheet.tsx

@@ -0,0 +1,146 @@
+// Property editor for a selected layer (PRD §6.1.5). Fields vary by layer type;
+// edits route through cardStore.updateLayer so they're undoable.
+
+import { Modal, Pressable, StyleSheet, Text, TextInput, View } from "react-native";
+import { Side, useCardStore } from "../../stores/cardStore";
+import { ShapeLayer, TextLayer } from "../../types/card";
+import { ColorPaletteEditor } from "./ColorPaletteEditor";
+
+interface Props {
+  side: Side;
+  layerId: string | null;
+  onClose: () => void;
+}
+
+export function LayerPropertySheet({ side, layerId, onClose }: Props) {
+  const card = useCardStore((s) => s.card);
+  const updateLayer = useCardStore((s) => s.updateLayer);
+  const removeLayer = useCardStore((s) => s.removeLayer);
+
+  const layer = card?.[side].layers.find((l) => l.id === layerId) ?? null;
+  const palette = card?.palette.colors ?? [];
+
+  const stepOpacity = (delta: number) => {
+    if (!layer) return;
+    const opacity = Math.max(0, Math.min(1, Math.round((layer.opacity + delta) * 10) / 10));
+    updateLayer(side, layer.id, { opacity });
+  };
+
+  return (
+    <Modal visible={!!layer} transparent animationType="slide" onRequestClose={onClose}>
+      <Pressable style={styles.backdrop} onPress={onClose}>
+        <Pressable style={styles.sheet} onPress={(e) => e.stopPropagation()}>
+          {layer && (
+            <>
+              <Text style={styles.title}>{layer.type} layer</Text>
+
+              {layer.type === "text" && (
+                <>
+                  <Field
+                    label="Text"
+                    value={(layer as TextLayer).text}
+                    onChangeText={(text) => updateLayer(side, layer.id, { text } as Partial<TextLayer>)}
+                  />
+                  <Text style={styles.label}>Color</Text>
+                  <ColorPaletteEditor
+                    colors={palette}
+                    selected={(layer as TextLayer).color}
+                    onSelect={(color) => updateLayer(side, layer.id, { color } as Partial<TextLayer>)}
+                  />
+                </>
+              )}
+
+              {layer.type === "shape" && (
+                <>
+                  <Text style={styles.label}>Fill</Text>
+                  <ColorPaletteEditor
+                    colors={palette}
+                    selected={(layer as ShapeLayer).fill}
+                    onSelect={(fill) => updateLayer(side, layer.id, { fill } as Partial<ShapeLayer>)}
+                  />
+                </>
+              )}
+
+              <View style={styles.stepRow}>
+                <Text style={styles.label}>Opacity {Math.round(layer.opacity * 100)}%</Text>
+                <View style={styles.steppers}>
+                  <Stepper label="−" onPress={() => stepOpacity(-0.1)} />
+                  <Stepper label="+" onPress={() => stepOpacity(0.1)} />
+                </View>
+              </View>
+
+              <Pressable
+                style={styles.delete}
+                onPress={() => {
+                  removeLayer(side, layer.id);
+                  onClose();
+                }}
+              >
+                <Text style={styles.deleteText}>Delete layer</Text>
+              </Pressable>
+            </>
+          )}
+        </Pressable>
+      </Pressable>
+    </Modal>
+  );
+}
+
+function Field({
+  label,
+  value,
+  onChangeText,
+}: {
+  label: string;
+  value: string;
+  onChangeText: (t: string) => void;
+}) {
+  return (
+    <>
+      <Text style={styles.label}>{label}</Text>
+      <TextInput style={styles.input} value={value} onChangeText={onChangeText} />
+    </>
+  );
+}
+
+function Stepper({ label, onPress }: { label: string; onPress: () => void }) {
+  return (
+    <Pressable style={styles.stepper} onPress={onPress}>
+      <Text style={styles.stepperText}>{label}</Text>
+    </Pressable>
+  );
+}
+
+const styles = StyleSheet.create({
+  backdrop: { flex: 1, backgroundColor: "rgba(0,0,0,0.5)", justifyContent: "flex-end" },
+  sheet: {
+    backgroundColor: "#15151a",
+    borderTopLeftRadius: 24,
+    borderTopRightRadius: 24,
+    padding: 20,
+    paddingBottom: 36,
+    gap: 12,
+  },
+  title: { color: "#f5f5f7", fontSize: 18, fontWeight: "700", textTransform: "capitalize" },
+  label: { color: "#9a9aa0", fontSize: 14 },
+  input: {
+    backgroundColor: "#222228",
+    color: "#f5f5f7",
+    borderRadius: 12,
+    paddingHorizontal: 14,
+    paddingVertical: 12,
+  },
+  stepRow: { flexDirection: "row", alignItems: "center", justifyContent: "space-between" },
+  steppers: { flexDirection: "row", gap: 8 },
+  stepper: {
+    backgroundColor: "#222228",
+    width: 44,
+    height: 44,
+    borderRadius: 12,
+    alignItems: "center",
+    justifyContent: "center",
+  },
+  stepperText: { color: "#f5f5f7", fontSize: 22, fontWeight: "700" },
+  delete: { paddingVertical: 14, alignItems: "center" },
+  deleteText: { color: "#ff453a", fontWeight: "600", fontSize: 16 },
+});

cardclaws-mobile/src/components/builder/ProfileEditor.tsx

@@ -0,0 +1,123 @@
+// Profile-depth editor (PRD §6.6): bio + links. Edits are undoable via the
+// cardStore profile actions. Portfolio/testimonials are Pro-tier and land later.
+
+import { Modal, Pressable, ScrollView, StyleSheet, Text, TextInput, View } from "react-native";
+import { newLayerId, useCardStore } from "../../stores/cardStore";
+
+interface Props {
+  visible: boolean;
+  onClose: () => void;
+}
+
+const MAX_LINKS = 12;
+
+export function ProfileEditor({ visible, onClose }: Props) {
+  const profile = useCardStore((s) => s.card?.profile);
+  const setBio = useCardStore((s) => s.setBio);
+  const addLink = useCardStore((s) => s.addLink);
+  const updateLink = useCardStore((s) => s.updateLink);
+  const removeLink = useCardStore((s) => s.removeLink);
+
+  const links = profile?.links ?? [];
+
+  return (
+    <Modal visible={visible} transparent animationType="slide" onRequestClose={onClose}>
+      <Pressable style={styles.backdrop} onPress={onClose}>
+        <Pressable style={styles.sheet} onPress={(e) => e.stopPropagation()}>
+          <View style={styles.grabber} />
+          <ScrollView contentContainerStyle={styles.content}>
+            <Text style={styles.title}>Profile</Text>
+
+            <Text style={styles.label}>Bio</Text>
+            <TextInput
+              style={[styles.input, styles.bio]}
+              multiline
+              maxLength={400}
+              placeholder="A short bio (up to 400 chars)…"
+              placeholderTextColor="#6b6b70"
+              value={profile?.bio ?? ""}
+              onChangeText={setBio}
+            />
+
+            <View style={styles.linksHeader}>
+              <Text style={styles.label}>Links ({links.length}/{MAX_LINKS})</Text>
+              <Pressable
+                disabled={links.length >= MAX_LINKS}
+                onPress={() =>
+                  addLink({ id: newLayerId(), type: "website", label: "", url: "", iconSlug: "website" })
+                }
+              >
+                <Text style={[styles.add, links.length >= MAX_LINKS && styles.disabled]}>+ Add</Text>
+              </Pressable>
+            </View>
+
+            {links.map((link) => (
+              <View key={link.id} style={styles.linkRow}>
+                <TextInput
+                  style={[styles.input, styles.linkField]}
+                  placeholder="Label"
+                  placeholderTextColor="#6b6b70"
+                  value={link.label}
+                  onChangeText={(label) => updateLink(link.id, { label })}
+                />
+                <TextInput
+                  style={[styles.input, styles.linkField]}
+                  placeholder="https://…"
+                  placeholderTextColor="#6b6b70"
+                  autoCapitalize="none"
+                  value={link.url}
+                  onChangeText={(url) => updateLink(link.id, { url })}
+                />
+                <Pressable onPress={() => removeLink(link.id)} hitSlop={8}>
+                  <Text style={styles.remove}>✕</Text>
+                </Pressable>
+              </View>
+            ))}
+
+            <Pressable style={styles.done} onPress={onClose}>
+              <Text style={styles.doneText}>Done</Text>
+            </Pressable>
+          </ScrollView>
+        </Pressable>
+      </Pressable>
+    </Modal>
+  );
+}
+
+const styles = StyleSheet.create({
+  backdrop: { flex: 1, backgroundColor: "rgba(0,0,0,0.5)", justifyContent: "flex-end" },
+  sheet: {
+    backgroundColor: "#15151a",
+    borderTopLeftRadius: 24,
+    borderTopRightRadius: 24,
+    paddingTop: 12,
+    maxHeight: "85%",
+  },
+  grabber: {
+    alignSelf: "center",
+    width: 40,
+    height: 4,
+    borderRadius: 2,
+    backgroundColor: "#3a3a40",
+    marginBottom: 8,
+  },
+  content: { padding: 20, paddingBottom: 36, gap: 10 },
+  title: { color: "#f5f5f7", fontSize: 20, fontWeight: "700" },
+  label: { color: "#9a9aa0", fontSize: 14 },
+  input: {
+    backgroundColor: "#222228",
+    color: "#f5f5f7",
+    borderRadius: 12,
+    paddingHorizontal: 14,
+    paddingVertical: 12,
+  },
+  bio: { minHeight: 80, textAlignVertical: "top" },
+  linksHeader: { flexDirection: "row", justifyContent: "space-between", alignItems: "center", marginTop: 8 },
+  add: { color: "#ff3b30", fontWeight: "600", fontSize: 16 },
+  disabled: { opacity: 0.4 },
+  linkRow: { flexDirection: "row", gap: 8, alignItems: "center" },
+  linkField: { flex: 1 },
+  remove: { color: "#9a9aa0", fontSize: 18, paddingHorizontal: 4 },
+  done: { marginTop: 12, backgroundColor: "#ff3b30", borderRadius: 14, paddingVertical: 16, alignItems: "center" },
+  doneText: { color: "#fff", fontWeight: "700", fontSize: 16 },
+});

cardclaws-mobile/src/components/card/CardFace.tsx

@@ -9,14 +9,18 @@ import {
   ContactLayer,
   Layer,
   LogoLayer,
+  ShapeLayer,
   TextLayer,
 } from "../../types/card";
 import { API_BASE } from "../../api/client";
+import { QRCodeView } from "./QRCodeView";
 
 interface Props {
   side: CardSide;
   width: number;
   height: number;
+  /** URL encoded by any `qr` layer on this side (the card's profile URL). */
+  profileUrl?: string;
 }
 
 function backgroundStyle(bg: BackgroundConfig): { backgroundColor: string } {
@@ -33,7 +37,17 @@ function assetUri(r2Key: string): string {
   return `${API_BASE}/assets/${r2Key}`;
 }
 
-function LayerView({ layer, width, height }: { layer: Layer; width: number; height: number }) {
+function LayerView({
+  layer,
+  width,
+  height,
+  profileUrl,
+}: {
+  layer: Layer;
+  width: number;
+  height: number;
+  profileUrl?: string;
+}) {
   const frame = {
     position: "absolute" as const,
     left: layer.x * width,
@@ -89,17 +103,52 @@ function LayerView({ layer, width, height }: { layer: Layer; width: number; heig
         </View>
       );
     }
+    case "shape": {
+      const s = layer as ShapeLayer;
+      const radius =
+        s.shape === "circle"
+          ? Math.min(frame.width, frame.height)
+          : s.shape === "line"
+            ? 0
+            : s.cornerRadius;
+      return (
+        <View
+          style={[
+            frame,
+            {
+              backgroundColor: s.fill,
+              borderColor: s.stroke,
+              borderWidth: s.stroke ? s.strokeWidth : 0,
+              borderRadius: radius,
+              height: s.shape === "line" ? Math.max(s.strokeWidth, 1) : frame.height,
+            },
+          ]}
+        />
+      );
+    }
+    case "qr":
+      return (
+        <View style={frame}>
+          <QRCodeView value={profileUrl ?? ""} size={Math.min(frame.width, frame.height)} />
+        </View>
+      );
     default:
       return <View style={frame} />;
   }
 }
 
-export function CardFace({ side, width, height }: Props) {
+export function CardFace({ side, width, height, profileUrl }: Props) {
   const ordered = [...side.layers].sort((a, b) => a.zIndex - b.zIndex);
   return (
     <View style={[styles.face, { width, height }, backgroundStyle(side.background)]}>
       {ordered.map((layer) => (
-        <LayerView key={layer.id} layer={layer} width={width} height={height} />
+        <LayerView
+          key={layer.id}
+          layer={layer}
+          width={width}
+          height={height}
+          profileUrl={profileUrl}
+        />
       ))}
     </View>
   );

cardclaws-mobile/src/components/card/CardViewer.tsx

@@ -13,6 +13,7 @@ import Animated, {
   withSequence,
   withTiming,
 } from "react-native-reanimated";
+import { PROFILE_BASE } from "../../api/client";
 import { CardDefinition } from "../../types/card";
 import { CardFace } from "./CardFace";
 import { CardFlip } from "./CardFlip";
@@ -21,6 +22,7 @@ export function CardViewer({ card }: { card: CardDefinition }) {
   const { width, height } = useWindowDimensions();
   const cardWidth = Math.min(width * 0.92, 380);
   const cardHeight = Math.min(height * 0.72, cardWidth * 1.5);
+  const profileUrl = `${PROFILE_BASE}/${card.handle}`;
 
   const entry = useSharedValue(0);
   const float = useSharedValue(0);
@@ -58,8 +60,12 @@ export function CardViewer({ card }: { card: CardDefinition }) {
           durationMs={card.settings.flipDurationMs}
           hapticEnabled={card.settings.hapticEnabled}
           gesture={card.settings.flipGesture}
-          front={<CardFace side={card.face} width={cardWidth} height={cardHeight} />}
+          front={
-          back={<CardFace side={card.back} width={cardWidth} height={cardHeight} />}
+            <CardFace side={card.face} width={cardWidth} height={cardHeight} profileUrl={profileUrl} />
+          }
+          back={
+            <CardFace side={card.back} width={cardWidth} height={cardHeight} profileUrl={profileUrl} />
+          }
         />
       </Animated.View>
     </View>

cardclaws-mobile/src/components/card/QRCodeView.tsx

@@ -0,0 +1,54 @@
+// Renders a QR code as a grid of cells from the on-device qrMatrix (PRD §16,
+// QR layer). Pure RN views — no native QR dependency.
+
+import { useMemo } from "react";
+import { StyleSheet, View } from "react-native";
+import { qrMatrix } from "../../engine/renderer/qrGenerator";
+
+interface Props {
+  value: string;
+  size: number;
+  /** Quiet-zone border in cells (QR spec recommends 4). */
+  quietZone?: number;
+  color?: string;
+  background?: string;
+}
+
+export function QRCodeView({
+  value,
+  size,
+  quietZone = 2,
+  color = "#000000",
+  background = "#ffffff",
+}: Props) {
+  const matrix = useMemo(() => qrMatrix(value), [value]);
+  const modules = matrix.length + quietZone * 2;
+  const cell = size / modules;
+
+  return (
+    <View style={[styles.root, { width: size, height: size, backgroundColor: background }]}>
+      {matrix.map((row, r) => (
+        <View key={r} style={styles.row}>
+          {row.map((dark, c) => (
+            <View
+              key={c}
+              style={{
+                position: "absolute",
+                left: (c + quietZone) * cell,
+                top: (r + quietZone) * cell,
+                width: cell,
+                height: cell,
+                backgroundColor: dark ? color : "transparent",
+              }}
+            />
+          ))}
+        </View>
+      ))}
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  root: { borderRadius: 8, overflow: "hidden" },
+  row: { ...StyleSheet.absoluteFillObject },
+});

cardclaws-mobile/src/components/share/QRShareOverlay.tsx

@@ -0,0 +1,35 @@
+// Full-screen QR overlay shown for in-person exchange (PRD §6.5.1 QR modality).
+
+import { Pressable, StyleSheet, Text, View } from "react-native";
+import { QRCodeView } from "../card/QRCodeView";
+
+interface Props {
+  url: string;
+  handle: string;
+  onClose: () => void;
+}
+
+export function QRShareOverlay({ url, handle, onClose }: Props) {
+  return (
+    <Pressable style={styles.root} onPress={onClose}>
+      <View style={styles.card}>
+        <QRCodeView value={url} size={260} />
+      </View>
+      <Text style={styles.handle}>@{handle}</Text>
+      <Text style={styles.hint}>Point a camera here to open the card</Text>
+    </Pressable>
+  );
+}
+
+const styles = StyleSheet.create({
+  root: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: "rgba(0,0,0,0.92)",
+    alignItems: "center",
+    justifyContent: "center",
+    gap: 16,
+  },
+  card: { backgroundColor: "#fff", padding: 20, borderRadius: 24 },
+  handle: { color: "#f5f5f7", fontSize: 22, fontWeight: "700" },
+  hint: { color: "#9a9aa0", fontSize: 14 },
+});

cardclaws-mobile/src/components/share/ShareSheet.tsx

@@ -0,0 +1,112 @@
+// Share modality picker (PRD §6.5.1). Each action first creates a tracked share
+// link, then performs the action so analytics attribute the visit correctly.
+//
+// QR and the OS share sheet (which itself covers AirDrop / iMessage / Email /
+// Copy) are implemented here with no native dependency. NFC tap and direct
+// Add-to-Wallet require native modules (react-native-nfc-manager, a PassKit
+// bridge) and a dev build — they attach in the hardware-integration milestone.
+
+import { useState } from "react";
+import { Linking, Modal, Pressable, Share, StyleSheet, Text, View } from "react-native";
+import * as Haptics from "expo-haptics";
+import { createShareLink } from "../../api/share";
+import { googleWalletSaveUrl } from "../../api/cards";
+import { QRShareOverlay } from "./QRShareOverlay";
+
+interface Props {
+  cardId: string;
+  handle: string;
+  visible: boolean;
+  onClose: () => void;
+}
+
+export function ShareSheet({ cardId, handle, visible, onClose }: Props) {
+  const [qrUrl, setQrUrl] = useState<string | null>(null);
+  const [busy, setBusy] = useState(false);
+
+  const showQr = async () => {
+    setBusy(true);
+    try {
+      const link = await createShareLink(cardId, "qr");
+      Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Light);
+      setQrUrl(link.url);
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  const shareLink = async () => {
+    setBusy(true);
+    try {
+      const link = await createShareLink(cardId, "link");
+      await Share.share({ message: link.url, url: link.url });
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  const addToGoogleWallet = async () => {
+    setBusy(true);
+    try {
+      const url = await googleWalletSaveUrl(cardId);
+      await Linking.openURL(url);
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  return (
+    <Modal visible={visible} animationType="slide" transparent onRequestClose={onClose}>
+      {qrUrl ? (
+        <QRShareOverlay url={qrUrl} handle={handle} onClose={() => setQrUrl(null)} />
+      ) : (
+        <Pressable style={styles.backdrop} onPress={onClose}>
+          <Pressable style={styles.sheet} onPress={(e) => e.stopPropagation()}>
+            <View style={styles.grabber} />
+            <Text style={styles.title}>Share your card</Text>
+            <Action label="Show QR code" onPress={showQr} disabled={busy} />
+            <Action label="Share link…" onPress={shareLink} disabled={busy} />
+            <Action label="Add to Google Wallet" onPress={addToGoogleWallet} disabled={busy} />
+            <Pressable style={styles.cancel} onPress={onClose}>
+              <Text style={styles.cancelText}>Cancel</Text>
+            </Pressable>
+          </Pressable>
+        </Pressable>
+      )}
+    </Modal>
+  );
+}
+
+function Action({ label, onPress, disabled }: { label: string; onPress: () => void; disabled?: boolean }) {
+  return (
+    <Pressable style={[styles.action, disabled && styles.disabled]} onPress={onPress} disabled={disabled}>
+      <Text style={styles.actionText}>{label}</Text>
+    </Pressable>
+  );
+}
+
+const styles = StyleSheet.create({
+  backdrop: { flex: 1, backgroundColor: "rgba(0,0,0,0.5)", justifyContent: "flex-end" },
+  sheet: {
+    backgroundColor: "#15151a",
+    borderTopLeftRadius: 24,
+    borderTopRightRadius: 24,
+    padding: 20,
+    paddingBottom: 36,
+    gap: 10,
+  },
+  grabber: {
+    alignSelf: "center",
+    width: 40,
+    height: 4,
+    borderRadius: 2,
+    backgroundColor: "#3a3a40",
+    marginBottom: 8,
+  },
+  title: { color: "#f5f5f7", fontSize: 20, fontWeight: "700", marginBottom: 8 },
+  action: { backgroundColor: "#222228", borderRadius: 14, paddingVertical: 16, alignItems: "center" },
+  actionText: { color: "#f5f5f7", fontSize: 16, fontWeight: "600" },
+  disabled: { opacity: 0.4 },
+  cancel: { paddingVertical: 16, alignItems: "center" },
+  cancelText: { color: "#9a9aa0", fontSize: 16 },
+});

cardclaws-mobile/src/stores/cardStore.ts

@@ -6,7 +6,7 @@
 // Zustand store so it is usable both in React and in headless unit tests.
 
 import { create } from "zustand";
-import { BackgroundConfig, CardDefinition, Layer } from "../types/card";
+import { BackgroundConfig, CardDefinition, Layer, ProfileData, ProfileLink } from "../types/card";
 
 export const MAX_HISTORY = 50;
 
@@ -21,8 +21,14 @@ interface CardState {
   addLayer: (side: Side, layer: Layer) => void;
   updateLayer: (side: Side, layerId: string, patch: Partial<Layer>) => void;
   removeLayer: (side: Side, layerId: string) => void;
+  reorderLayer: (side: Side, layerId: string, direction: "up" | "down") => void;
   setBackground: (side: Side, background: BackgroundConfig) => void;
 
+  setBio: (bio: string) => void;
+  addLink: (link: ProfileLink) => void;
+  updateLink: (linkId: string, patch: Partial<ProfileLink>) => void;
+  removeLink: (linkId: string) => void;
+
   undo: () => void;
   redo: () => void;
   canUndo: () => boolean;
@@ -58,6 +64,16 @@ export const useCardStore = create<CardState>((set, get) => {
     return card;
   };
 
+  const emptyProfile = (): ProfileData => ({ bio: "", links: [] });
+
+  const editProfile = (
+    card: CardDefinition,
+    fn: (profile: ProfileData) => ProfileData,
+  ): CardDefinition => {
+    card.profile = fn(card.profile ?? emptyProfile());
+    return card;
+  };
+
   return {
     card: null,
     past: [],
@@ -80,12 +96,45 @@ export const useCardStore = create<CardState>((set, get) => {
         editSide(card, side, (layers) => layers.filter((l) => l.id !== layerId)),
       ),
 
+    reorderLayer: (side, layerId, direction) =>
+      mutate((card) =>
+        editSide(card, side, (layers) => {
+          const sorted = [...layers].sort((a, b) => a.zIndex - b.zIndex);
+          const i = sorted.findIndex((l) => l.id === layerId);
+          const j = direction === "up" ? i + 1 : i - 1;
+          if (i === -1 || j < 0 || j >= sorted.length) return layers;
+          // Swap the z-indexes of the two adjacent layers.
+          const zi = sorted[i].zIndex;
+          sorted[i] = { ...sorted[i], zIndex: sorted[j].zIndex };
+          sorted[j] = { ...sorted[j], zIndex: zi };
+          return sorted;
+        }),
+      ),
+
     setBackground: (side, background) =>
       mutate((card) => {
         card[side] = { ...card[side], background };
         return card;
       }),
 
+    setBio: (bio) => mutate((card) => editProfile(card, (p) => ({ ...p, bio }))),
+
+    addLink: (link) =>
+      mutate((card) => editProfile(card, (p) => ({ ...p, links: [...p.links, link] }))),
+
+    updateLink: (linkId, patch) =>
+      mutate((card) =>
+        editProfile(card, (p) => ({
+          ...p,
+          links: p.links.map((l) => (l.id === linkId ? { ...l, ...patch } : l)),
+        })),
+      ),
+
+    removeLink: (linkId) =>
+      mutate((card) =>
+        editProfile(card, (p) => ({ ...p, links: p.links.filter((l) => l.id !== linkId) })),
+      ),
+
     undo: () => {
       const { card, past, future } = get();
       if (!card || past.length === 0) return;

cardclaws-mobile/src/types/card.ts

@@ -66,7 +66,17 @@ export interface ContactLayer extends BaseLayer {
   fields: ContactFields;
 }
 
-export type Layer = TextLayer | LogoLayer | ContactLayer | BaseLayer;
+export interface ShapeLayer extends BaseLayer {
+  type: "shape";
+  shape: "rectangle" | "circle" | "line";
+  fill?: string;
+  stroke?: string;
+  strokeWidth: number;
+  cornerRadius: number;
+}
+
+/** A `qr` layer carries only geometry; its content is the card's profile URL. */
+export type Layer = TextLayer | LogoLayer | ContactLayer | ShapeLayer | BaseLayer;
 
 export interface GradientStop {
   color: string;
@@ -105,6 +115,21 @@ export interface CardSettings {
   hapticEnabled: boolean;
 }
 
+export interface ProfileLink {
+  id: string;
+  type: string;
+  label: string;
+  url: string;
+  iconSlug: string;
+}
+
+export interface ProfileData {
+  bio: string;
+  avatarR2Key?: string | null;
+  links: ProfileLink[];
+  contactFormEnabled?: boolean;
+}
+
 export interface CardDefinition {
   id: string;
   ownerId: string;
@@ -114,6 +139,7 @@ export interface CardDefinition {
   back: CardSide;
   palette: ColorPalette;
   settings: CardSettings;
+  profile?: ProfileData;
 }
 
 export const DEFAULT_SETTINGS: CardSettings = {