diff --git a/src/shared/components/FormSwitch/FormSwitch.tsx b/src/shared/components/FormSwitch/FormSwitch.tsx
index 5418e32..1db2cca 100644
--- a/src/shared/components/FormSwitch/FormSwitch.tsx
+++ b/src/shared/components/FormSwitch/FormSwitch.tsx
@@ -7,17 +7,11 @@ import Typography from "../../design/Typography"
 
 export interface FormSwitchProps {
   label: string
-  hint?: string
   value: boolean
   onChange: (value: boolean) => void
 }
 
-const FormSwitch: React.FC<FormSwitchProps> = ({
-  label,
-  hint,
-  value,
-  onChange,
-}) => {
+const FormSwitch: React.FC<FormSwitchProps> = ({ label, value, onChange }) => {
   const theme = useTheme()
   const id = useId()
 
@@ -37,7 +31,6 @@ const FormSwitch: React.FC<FormSwitchProps> = ({
       <Switch
         accessibilityLabel={label}
         accessibilityLabelledBy={id}
-        accessibilityHint={hint}
         onValueChange={onChange}
         value={value}
         thumbColor={theme.palette.primary.contrast}
diff --git a/src/shared/components/FormTextField/FormTextField.test.tsx b/src/shared/components/FormTextField/FormTextField.test.tsx
index 55809d0..74b9caf 100644
--- a/src/shared/components/FormTextField/FormTextField.test.tsx
+++ b/src/shared/components/FormTextField/FormTextField.test.tsx
@@ -1,9 +1,9 @@
-import { fireEvent, render, screen } from "@testing-library/react-native"
+import { render, screen, userEvent } from "@testing-library/react-native"
 
 import FormTextField from "./FormTextField"
 
 describe("FormTextField component", () => {
-  it("renders label", () => {
+  it("renders label", async () => {
     const handleChangeMock = jest.fn()
 
     render(
@@ -14,9 +14,15 @@ describe("FormTextField component", () => {
       ></FormTextField>,
     )
 
-    expect(screen.getByText(/Hello/)).toBeOnTheScreen()
+    const user = userEvent.setup()
+    expect(screen.getByText(/Hello/)).toBeTruthy()
 
-    fireEvent.changeText(screen.getByLabelText(/Hello/i), "test")
-    expect(handleChangeMock).toHaveBeenCalledWith("test")
+    await user.type(screen.getByLabelText(/Hello/i), "test")
+
+    expect(handleChangeMock).toHaveBeenCalledTimes(4)
+    expect(handleChangeMock).toHaveBeenNthCalledWith(1, "responset")
+    expect(handleChangeMock).toHaveBeenNthCalledWith(2, "responsee")
+    expect(handleChangeMock).toHaveBeenNthCalledWith(3, "responses")
+    expect(handleChangeMock).toHaveBeenNthCalledWith(4, "responset")
   })
 })
diff --git a/src/shared/components/FormTextField/FormTextField.tsx b/src/shared/components/FormTextField/FormTextField.tsx
index bd39b70..fb8c709 100644
--- a/src/shared/components/FormTextField/FormTextField.tsx
+++ b/src/shared/components/FormTextField/FormTextField.tsx
@@ -8,16 +8,12 @@ import Typography from "../../design/Typography"
 export interface FormTextFieldProps {
   type?: "text"
   label: string
-  hint?: string
-  placeholder?: string
   value: string
   onChange?: (value: string) => void
 }
 
 const FormTextField: React.FC<FormTextFieldProps> = ({
   label,
-  hint,
-  placeholder,
   value,
   onChange,
 }) => {
@@ -32,10 +28,8 @@ const FormTextField: React.FC<FormTextFieldProps> = ({
       <TextInput
         accessibilityLabel={label}
         accessibilityLabelledBy={id}
-        accessibilityHint={hint}
         onChangeText={onChange}
         value={value}
-        placeholder={placeholder}
         style={{
           flex: 1,
           paddingVertical: 0,
diff --git a/src/shared/components/RestaurantHeader/RestaurantHeader.tsx b/src/shared/components/RestaurantHeader/RestaurantHeader.tsx
index c33723f..d154df7 100644
--- a/src/shared/components/RestaurantHeader/RestaurantHeader.tsx
+++ b/src/shared/components/RestaurantHeader/RestaurantHeader.tsx
@@ -55,7 +55,10 @@ function getStyles(theme: Theme): {
 } {
   return StyleSheet.create({
     heroBackground: {
+      width: "100%",
+      maxWidth: 768,
       height: 180,
+      margin: "auto",
       justifyContent: "flex-end",
       alignItems: "flex-start",
     },
diff --git a/src/shared/design/Box/Box.tsx b/src/shared/design/Box/Box.tsx
index 5f75df3..e8a1da6 100644
--- a/src/shared/design/Box/Box.tsx
+++ b/src/shared/design/Box/Box.tsx
@@ -53,43 +53,16 @@ function getStyles(
       {
         display: "flex",
       },
-      margin && spacingToStyles(theme, "margin", margin),
-      padding && spacingToStyles(theme, "padding", padding),
+      typeof margin === "string" && { margin: theme.spacing[margin] },
+      Array.isArray(margin) && {
+        marginVertical: theme.spacing[margin[0]],
+        marginHorizontal: theme.spacing[margin[1]],
+      },
+      typeof padding === "string" && { padding: theme.spacing[padding] },
+      Array.isArray(padding) && {
+        paddingVertical: theme.spacing[padding[0]],
+        paddingHorizontal: theme.spacing[padding[1]],
+      },
     ]),
   })
 }
-
-function spacingToStyles(
-  theme: Theme,
-  property: "margin" | "padding",
-  value: ThemeMargin | ThemePadding,
-): ViewStyle {
-  if (typeof value === "string") {
-    return {
-      [property]: theme.spacing[value],
-    }
-  }
-
-  if (value.length === 1) {
-    return {
-      [property]: theme.spacing[value[0]],
-    }
-  }
-
-  if (value.length === 2) {
-    return {
-      [`${property}Vertical`]: theme.spacing[value[0]],
-      [`${property}Horizontal`]: theme.spacing[value[1]],
-    }
-  }
-
-  if (value.length === 3) {
-    return {
-      [`${property}Top`]: theme.spacing[value[0]],
-      [`${property}Horizontal`]: theme.spacing[value[1]],
-      [`${property}Bottom`]: theme.spacing[value[2]],
-    }
-  }
-
-  throw new Error(`Invalid spacing value: ${value}`)
-}
diff --git a/src/shared/design/Button/Button.tsx b/src/shared/design/Button/Button.tsx
index a6bf33d..155c4f4 100644
--- a/src/shared/design/Button/Button.tsx
+++ b/src/shared/design/Button/Button.tsx
@@ -6,21 +6,34 @@ import {
   StyleSheet,
   Pressable,
   View,
+  Text,
 } from "react-native"
 
 import { Theme, useTheme } from "../theme"
-import Typography from "../Typography"
 
 type Variant = "primary" | "secondary" | "outline"
 
 export interface ButtonProps extends PressableProps {
   variant?: Variant
+  margin?: keyof Theme["spacing"]
+  padding?: keyof Theme["spacing"]
+  fontSize?: TextStyle["fontSize"]
+  fontWeight?: TextStyle["fontWeight"]
   disabled?: boolean
   children: string
 }
 
 const Button: React.ForwardRefRenderFunction<View, ButtonProps> = (
-  { variant = "primary", disabled, children, ...props },
+  {
+    variant = "primary",
+    margin,
+    padding,
+    fontSize = 20,
+    fontWeight = "400",
+    disabled,
+    children,
+    ...props
+  },
   ref,
 ) => {
   const theme = useTheme()
@@ -28,19 +41,23 @@ const Button: React.ForwardRefRenderFunction<View, ButtonProps> = (
 
   return (
     <Pressable
-      ref={ref}
       {...props}
+      ref={ref}
+      style={StyleSheet.compose(styles.pressable, {
+        ...(margin ? { margin: theme.spacing[margin] } : {}),
+        ...(padding ? { padding: theme.spacing[padding] } : {}),
+        opacity: disabled ? 0.5 : 1,
+      })}
       disabled={disabled}
-      style={[
-        styles.pressable,
-        {
-          opacity: disabled ? 0.5 : 1,
-        },
-      ]}
     >
-      <Typography variant="button" style={styles.text}>
+      <Text
+        style={StyleSheet.compose(styles.text, {
+          fontSize,
+          fontWeight,
+        })}
+      >
         {children}
-      </Typography>
+      </Text>
     </Pressable>
   )
 }
diff --git a/src/shared/design/Card/Card.tsx b/src/shared/design/Card/Card.tsx
index 13d34fc..3017884 100644
--- a/src/shared/design/Card/Card.tsx
+++ b/src/shared/design/Card/Card.tsx
@@ -33,6 +33,7 @@ function getStyles(theme: Theme): {
 } {
   return StyleSheet.create({
     container: {
+      width: "100%",
       shadowOffset: { width: 0, height: 2 },
       shadowOpacity: 0.25,
 
diff --git a/src/shared/design/Typography/Typography.tsx b/src/shared/design/Typography/Typography.tsx
index 5815566..45ba6c3 100644
--- a/src/shared/design/Typography/Typography.tsx
+++ b/src/shared/design/Typography/Typography.tsx
@@ -16,7 +16,7 @@ const Typography: React.FC<TypographyProps> = ({
   const styles = getStyles(theme, variant)
 
   return (
-    <Text {...props} style={[styles.text, style]}>
+    <Text {...props} style={StyleSheet.compose(styles.text, style)}>
       {children}
     </Text>
   )
diff --git a/src/shared/design/theme/theme.ts b/src/shared/design/theme/theme.ts
index 797a0c8..b3bea30 100644
--- a/src/shared/design/theme/theme.ts
+++ b/src/shared/design/theme/theme.ts
@@ -32,14 +32,10 @@ export interface Theme {
 
 export type ThemeMargin =
   | keyof Theme["spacing"]
-  | [keyof Theme["spacing"]]
   | [keyof Theme["spacing"], keyof Theme["spacing"]]
-  | [keyof Theme["spacing"], keyof Theme["spacing"], keyof Theme["spacing"]]
 export type ThemePadding =
   | keyof Theme["spacing"]
-  | [keyof Theme["spacing"]]
   | [keyof Theme["spacing"], keyof Theme["spacing"]]
-  | [keyof Theme["spacing"], keyof Theme["spacing"], keyof Theme["spacing"]]
 
 const light: Theme = {
   palette: {
diff --git a/src/shared/services/auth/AuthProvider.tsx b/src/shared/services/auth/AuthProvider.tsx
index b3bc272..f6552c1 100644
--- a/src/shared/services/auth/AuthProvider.tsx
+++ b/src/shared/services/auth/AuthProvider.tsx
@@ -19,35 +19,65 @@ GoogleSignin.configure({
 const AuthProvider: React.FC<{ children: React.ReactNode }> = ({
   children,
 }) => {
+  const [error, setError] = useState<Error | undefined>()
+  const [isPending, setIsPending] = useState<boolean>(true)
   const [userInfo, setUserInfo] = useState<UserInfo | null>()
 
   const signIn = useCallback(async () => {
     try {
+      setError(undefined)
+      setIsPending(true)
       const userInfo = await GoogleSignin.signIn()
+      setIsPending(false)
       setUserInfo(userInfo)
       return userInfo.user
     } catch (error) {
       setUserInfo(null)
       console.error("GoogleSignin.signIn() error", error)
+      setError(error as Error)
+      setIsPending(false)
+      setUserInfo(null)
       return false
     }
   }, [])
 
   const signOut = useCallback(async () => {
     try {
+      setError(undefined)
+      setIsPending(true)
+
       await GoogleSignin.signOut()
+      setIsPending(false)
       setUserInfo(null)
+
       return true
     } catch (error) {
       console.error("GoogleSignin.signOut() error", error)
+      setError(error as Error)
+
       return false
     }
   }, [])
 
   useEffect(() => {
     async function run() {
-      const userInfo = await GoogleSignin.getCurrentUser()
-      setUserInfo(userInfo)
+      try {
+        setError(undefined)
+        setIsPending(true)
+
+        const userInfo = await GoogleSignin.getCurrentUser()
+
+        setIsPending(false)
+        setUserInfo(userInfo || undefined)
+      } catch (error) {
+        console.error(
+          "Call to GoogleSignin.getCurrentUser() failed with error:",
+          error,
+        )
+
+        setError(error as Error)
+        setIsPending(false)
+      }
     }
 
     run()
@@ -57,7 +87,9 @@ const AuthProvider: React.FC<{ children: React.ReactNode }> = ({
     () => ({
       signIn,
       signOut,
+      error,
       isAuthenticated: userInfo ? true : userInfo === null ? false : undefined,
+      isPending,
       user: userInfo?.user,
       scopes: userInfo?.scopes,
       idToken: userInfo?.idToken,
diff --git a/src/shared/services/auth/context.ts b/src/shared/services/auth/context.ts
index 5fa2f09..4a7e5cf 100644
--- a/src/shared/services/auth/context.ts
+++ b/src/shared/services/auth/context.ts
@@ -6,8 +6,12 @@ export interface AuthContext {
   signIn: () => Promise<UserInfo["user"] | false>
   /** Log the user out from Google Auth. Return boolean success. */
   signOut: () => Promise<boolean>
+  /** Error if any Google API returns an error. Undefined if no errors in the last API call. */
+  error?: Error | undefined
   /** Boolean if the user is authenticated or not. Undefined if unknown. */
   isAuthenticated?: boolean
+  /** Boolean if a Google API call is being made. */
+  isPending: boolean
   /** Google Auth User object. Undefined if not signed in. */
   user?: UserInfo["user"]
   /** List of Google Auth scopes. Undefined if not signed in. */
diff --git a/tsconfig.json b/tsconfig.json
index 8487fbf..23d909e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,6 +5,7 @@
       "@shared/*": ["./src/shared/*"],
       "@screens/*": ["./src/screens/*"]
     },
+    "types": ["react-native", "jest", "node"],
 
     "module": "ESNext",
     "strict": true,