diff --git a/.gitignore b/.gitignore
index b78b105..99e3022 100644
--- a/.gitignore
+++ b/.gitignore
@@ -85,3 +85,6 @@ act_runner
 # OS files
 Thumbs.db
 .DS_Store
+
+# Cursor rules (local development)
+.cursorrules
diff --git a/app/components/Alert/Alert.container.tsx b/app/components/Alert/Alert.container.tsx
index 0435ab6..26b704a 100644
--- a/app/components/Alert/Alert.container.tsx
+++ b/app/components/Alert/Alert.container.tsx
@@ -3,16 +3,20 @@
 import { memo } from "react";
 import { AlertView } from "./Alert.view";
 import type { AlertProps } from "./Alert.types";
+import { normalizeAlertStatus, normalizeAlertType } from "../../../lib/propNormalization";
 
 const AlertContainer = memo<AlertProps>(
   ({
     title,
     description,
-    status = "default",
-    type = "toast",
+    status: statusProp = "default",
+    type: typeProp = "toast",
     onClose,
     className = "",
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const status = normalizeAlertStatus(statusProp);
+    const type = normalizeAlertType(typeProp);
     // Determine background and border colors based on status and type
     const getStatusStyles = () => {
       switch (status) {
diff --git a/app/components/Alert/Alert.types.ts b/app/components/Alert/Alert.types.ts
index 466a09a..236e883 100644
--- a/app/components/Alert/Alert.types.ts
+++ b/app/components/Alert/Alert.types.ts
@@ -1,8 +1,28 @@
+export type AlertStatusValue =
+  | "default"
+  | "positive"
+  | "warning"
+  | "danger"
+  | "Default"
+  | "Positive"
+  | "Warning"
+  | "Danger";
+
+export type AlertTypeValue = "toast" | "banner" | "Toast" | "Banner";
+
 export interface AlertProps {
   title: string;
   description?: string;
-  status?: "default" | "positive" | "warning" | "danger";
-  type?: "toast" | "banner";
+  /**
+   * Alert status. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  status?: AlertStatusValue;
+  /**
+   * Alert type. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  type?: AlertTypeValue;
   onClose?: () => void;
   className?: string;
 }
diff --git a/app/components/AskOrganizer/AskOrganizer.container.tsx b/app/components/AskOrganizer/AskOrganizer.container.tsx
index d9c6ac5..831f4ff 100644
--- a/app/components/AskOrganizer/AskOrganizer.container.tsx
+++ b/app/components/AskOrganizer/AskOrganizer.container.tsx
@@ -8,6 +8,7 @@ import type {
   AskOrganizerProps,
   AskOrganizerVariant,
 } from "./AskOrganizer.types";
+import { normalizeAskOrganizerVariant } from "../../../lib/propNormalization";
 
 const VARIANT_STYLES: Record<
   AskOrganizerVariant,
@@ -39,9 +40,11 @@ const AskOrganizerContainer = memo<AskOrganizerProps>(
     buttonText,
     buttonHref,
     className = "",
-    variant = "centered",
+    variant: variantProp = "centered",
     onContactClick,
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeAskOrganizerVariant(variantProp) as AskOrganizerVariant;
     const t = useTranslation();
     const defaultButtonText = buttonText ?? t("askOrganizer.buttonText");
     const defaultButtonHref = buttonHref ?? t("askOrganizer.buttonHref");
diff --git a/app/components/AskOrganizer/AskOrganizer.types.ts b/app/components/AskOrganizer/AskOrganizer.types.ts
index e7bd031..ed425f2 100644
--- a/app/components/AskOrganizer/AskOrganizer.types.ts
+++ b/app/components/AskOrganizer/AskOrganizer.types.ts
@@ -4,7 +4,11 @@ export type AskOrganizerVariant =
   | "centered"
   | "left-aligned"
   | "compact"
-  | "inverse";
+  | "inverse"
+  | "Centered"
+  | "Left-Aligned"
+  | "Compact"
+  | "Inverse";
 
 export interface AskOrganizerProps {
   title?: string;
@@ -13,6 +17,10 @@ export interface AskOrganizerProps {
   buttonText?: string;
   buttonHref?: string;
   className?: string;
+  /**
+   * Ask organizer variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
   variant?: AskOrganizerVariant;
   onContactClick?: (_data: {
     event: string;
diff --git a/app/components/Avatar.tsx b/app/components/Avatar.tsx
index e17cb49..712b847 100644
--- a/app/components/Avatar.tsx
+++ b/app/components/Avatar.tsx
@@ -1,14 +1,23 @@
 import { memo } from "react";
+import { normalizeSize } from "../../lib/propNormalization";
+
+export type AvatarSizeValue = "small" | "medium" | "large" | "xlarge" | "Small" | "Medium" | "Large" | "XLarge";
 
 interface AvatarProps extends React.ImgHTMLAttributes<HTMLImageElement> {
   src: string;
   alt: string;
-  size?: "small" | "medium" | "large" | "xlarge";
+  /**
+   * Avatar size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: AvatarSizeValue;
   className?: string;
 }
 
 const Avatar = memo<AvatarProps>(
-  ({ src, alt, size = "small", className = "", ...props }) => {
+  ({ src, alt, size: sizeProp = "small", className = "", ...props }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeSize(sizeProp, "small");
     const sizeStyles: Record<string, string> = {
       small: "w-[var(--spacing-scale-016)] h-[var(--spacing-scale-016)]",
       medium: "w-[18px] h-[18px]",
diff --git a/app/components/AvatarContainer.tsx b/app/components/AvatarContainer.tsx
index e036968..e5d7c08 100644
--- a/app/components/AvatarContainer.tsx
+++ b/app/components/AvatarContainer.tsx
@@ -1,13 +1,22 @@
 import { memo } from "react";
+import { normalizeSize } from "../../lib/propNormalization";
+
+export type AvatarContainerSizeValue = "small" | "medium" | "large" | "xlarge" | "Small" | "Medium" | "Large" | "XLarge";
 
 interface AvatarContainerProps extends React.HTMLAttributes<HTMLDivElement> {
   children?: React.ReactNode;
-  size?: "small" | "medium" | "large" | "xlarge";
+  /**
+   * Avatar container size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: AvatarContainerSizeValue;
   className?: string;
 }
 
 const AvatarContainer = memo<AvatarContainerProps>(
-  ({ children, size = "small", className = "", ...props }) => {
+  ({ children, size: sizeProp = "small", className = "", ...props }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeSize(sizeProp, "small");
     const sizeStyles: Record<string, string> = {
       small: "flex -space-x-[var(--spacing-scale-008)]",
       medium: "flex -space-x-[9px]",
diff --git a/app/components/Button.tsx b/app/components/Button.tsx
index 7640d96..dcd65bb 100644
--- a/app/components/Button.tsx
+++ b/app/components/Button.tsx
@@ -1,17 +1,19 @@
 import { memo } from "react";
+import type { VariantValue, SizeValue } from "../../lib/propNormalization";
+import { normalizeVariant, normalizeSize } from "../../lib/propNormalization";
 
 interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
   children: React.ReactNode;
-  variant?:
-    | "filled"
-    | "filled-inverse"
-    | "outline"
-    | "outline-inverse"
-    | "ghost"
-    | "ghost-inverse"
-    | "danger"
-    | "danger-inverse";
-  size?: "xsmall" | "small" | "medium" | "large" | "xlarge";
+  /**
+   * Button variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  variant?: VariantValue;
+  /**
+   * Button size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: SizeValue;
   className?: string;
   disabled?: boolean;
   type?: "button" | "submit" | "reset";
@@ -27,8 +29,8 @@ interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
 const Button = memo<ButtonProps>(
   ({
     children,
-    variant = "filled",
-    size = "xsmall",
+    variant: variantProp = "filled",
+    size: sizeProp = "xsmall",
     className = "",
     disabled = false,
     type = "button",
@@ -39,6 +41,9 @@ const Button = memo<ButtonProps>(
     ariaLabel,
     ...props
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeVariant(variantProp);
+    const size = normalizeSize(sizeProp);
     const sizeStyles: Record<string, string> = {
       xsmall:
         "p-[var(--spacing-scale-006)] gap-[var(--spacing-scale-002)]",
diff --git a/app/components/Checkbox/Checkbox.container.tsx b/app/components/Checkbox/Checkbox.container.tsx
index a8a00b1..42c531b 100644
--- a/app/components/Checkbox/Checkbox.container.tsx
+++ b/app/components/Checkbox/Checkbox.container.tsx
@@ -4,12 +4,13 @@ import { memo } from "react";
 import { useComponentId } from "../../hooks";
 import { CheckboxView } from "./Checkbox.view";
 import type { CheckboxProps } from "./Checkbox.types";
+import { normalizeMode, normalizeState } from "../../../lib/propNormalization";
 
 const CheckboxContainer = memo<CheckboxProps>(
   ({
     checked = false,
-    mode = "standard",
-    state = "default",
+    mode: modeProp = "standard",
+    state: stateProp = "default",
     disabled = false,
     label,
     className = "",
@@ -20,6 +21,10 @@ const CheckboxContainer = memo<CheckboxProps>(
     ariaLabel,
     ...props
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const mode = normalizeMode(modeProp);
+    const state = normalizeState(stateProp);
+    
     const isInverse = mode === "inverse";
     const isStandard = mode === "standard";
 
diff --git a/app/components/Checkbox/Checkbox.types.ts b/app/components/Checkbox/Checkbox.types.ts
index 70ba736..8faefb9 100644
--- a/app/components/Checkbox/Checkbox.types.ts
+++ b/app/components/Checkbox/Checkbox.types.ts
@@ -1,7 +1,17 @@
+import type { ModeValue, StateValue } from "../../../lib/propNormalization";
+
 export interface CheckboxProps {
   checked?: boolean;
-  mode?: "standard" | "inverse";
-  state?: "default" | "hover" | "focus";
+  /**
+   * Mode variant. Accepts both "standard"/"Standard" and "inverse"/"Inverse" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  mode?: ModeValue;
+  /**
+   * Visual state. Accepts "default"/"Default", "hover"/"Hover", "focus"/"Focus" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: StateValue;
   disabled?: boolean;
   label?: string;
   className?: string;
diff --git a/app/components/CheckboxGroup/CheckboxGroup.container.tsx b/app/components/CheckboxGroup/CheckboxGroup.container.tsx
index a45bd5c..cde1c3c 100644
--- a/app/components/CheckboxGroup/CheckboxGroup.container.tsx
+++ b/app/components/CheckboxGroup/CheckboxGroup.container.tsx
@@ -3,17 +3,20 @@
 import { memo, useCallback, useId, useState } from "react";
 import { CheckboxGroupView } from "./CheckboxGroup.view";
 import type { CheckboxGroupProps } from "./CheckboxGroup.types";
+import { normalizeMode } from "../../../lib/propNormalization";
 
 const CheckboxGroupContainer = ({
   name,
   value,
   onChange,
-  mode = "standard",
+  mode: modeProp = "standard",
   disabled = false,
   options = [],
   className = "",
   ...props
 }: CheckboxGroupProps) => {
+  // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+  const mode = normalizeMode(modeProp);
   // Generate unique ID for accessibility if not provided
   const generatedId = useId();
   const groupId = name || `checkbox-group-${generatedId}`;
diff --git a/app/components/CheckboxGroup/CheckboxGroup.types.ts b/app/components/CheckboxGroup/CheckboxGroup.types.ts
index 0d98ee5..2c1e6a5 100644
--- a/app/components/CheckboxGroup/CheckboxGroup.types.ts
+++ b/app/components/CheckboxGroup/CheckboxGroup.types.ts
@@ -5,11 +5,17 @@ export interface CheckboxOption {
   ariaLabel?: string;
 }
 
+import type { ModeValue } from "../../../lib/propNormalization";
+
 export interface CheckboxGroupProps {
   name?: string;
   value?: string[];
   onChange?: (_data: { value: string[] }) => void;
-  mode?: "standard" | "inverse";
+  /**
+   * Mode variant. Accepts both "standard"/"Standard" and "inverse"/"Inverse" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  mode?: ModeValue;
   disabled?: boolean;
   options?: CheckboxOption[];
   className?: string;
diff --git a/app/components/ContentContainer/ContentContainer.container.tsx b/app/components/ContentContainer/ContentContainer.container.tsx
index 5c201b7..4cacb27 100644
--- a/app/components/ContentContainer/ContentContainer.container.tsx
+++ b/app/components/ContentContainer/ContentContainer.container.tsx
@@ -4,9 +4,12 @@ import { memo } from "react";
 import { getAssetPath, ASSETS } from "../../../lib/assetUtils";
 import ContentContainerView from "./ContentContainer.view";
 import type { ContentContainerProps } from "./ContentContainer.types";
+import { normalizeContentContainerSize } from "../../../lib/propNormalization";
 
 const ContentContainerContainer = memo<ContentContainerProps>(
-  ({ post, width = "200px", size = "responsive" }) => {
+  ({ post, width = "200px", size: sizeProp = "responsive" }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeContentContainerSize(sizeProp);
     // Get the corresponding icon based on the same logic as background images
     const getIconImage = (slug: string): string => {
       const icons = [
diff --git a/app/components/ContentContainer/ContentContainer.types.ts b/app/components/ContentContainer/ContentContainer.types.ts
index f29387e..8bfbff7 100644
--- a/app/components/ContentContainer/ContentContainer.types.ts
+++ b/app/components/ContentContainer/ContentContainer.types.ts
@@ -1,9 +1,15 @@
 import type { BlogPost } from "../../../lib/content";
 
+export type ContentContainerSizeValue = "xs" | "responsive" | "Xs" | "Responsive";
+
 export interface ContentContainerProps {
   post: BlogPost;
   width?: string;
-  size?: "xs" | "responsive";
+  /**
+   * Content container size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: ContentContainerSizeValue;
 }
 
 export interface ContentContainerViewProps {
diff --git a/app/components/ContentLockup/ContentLockup.container.tsx b/app/components/ContentLockup/ContentLockup.container.tsx
index d240cb2..70cd5ac 100644
--- a/app/components/ContentLockup/ContentLockup.container.tsx
+++ b/app/components/ContentLockup/ContentLockup.container.tsx
@@ -3,6 +3,7 @@
 import { memo } from "react";
 import ContentLockupView from "./ContentLockup.view";
 import type { ContentLockupProps, VariantStyle } from "./ContentLockup.types";
+import { normalizeContentLockupVariant, normalizeAlignment } from "../../../lib/propNormalization";
 
 const ContentLockupContainer = memo<ContentLockupProps>(
   ({
@@ -11,12 +12,15 @@ const ContentLockupContainer = memo<ContentLockupProps>(
     description,
     ctaText,
     buttonClassName = "",
-    variant = "hero",
+    variant: variantProp = "hero",
     linkText,
     linkHref,
-    alignment = "center",
+    alignment: alignmentProp = "center",
     titleId,
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeContentLockupVariant(variantProp);
+    const alignment = normalizeAlignment(alignmentProp);
     // Variant-specific styling
     const variantStyles: Record<string, VariantStyle> = {
       hero: {
diff --git a/app/components/ContentLockup/ContentLockup.types.ts b/app/components/ContentLockup/ContentLockup.types.ts
index 61a59f8..92efaca 100644
--- a/app/components/ContentLockup/ContentLockup.types.ts
+++ b/app/components/ContentLockup/ContentLockup.types.ts
@@ -1,3 +1,19 @@
+export type ContentLockupVariantValue =
+  | "hero"
+  | "feature"
+  | "learn"
+  | "ask"
+  | "ask-inverse"
+  | "modal"
+  | "Hero"
+  | "Feature"
+  | "Learn"
+  | "Ask"
+  | "Ask-Inverse"
+  | "Modal";
+
+export type ContentLockupAlignmentValue = "center" | "left" | "Center" | "Left";
+
 export interface ContentLockupProps {
   title?: string;
   subtitle?: string;
@@ -5,10 +21,18 @@ export interface ContentLockupProps {
   ctaText?: string;
   ctaHref?: string;
   buttonClassName?: string;
-  variant?: "hero" | "feature" | "learn" | "ask" | "ask-inverse" | "modal";
+  /**
+   * Content lockup variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  variant?: ContentLockupVariantValue;
   linkText?: string;
   linkHref?: string;
-  alignment?: "center" | "left";
+  /**
+   * Text alignment. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  alignment?: ContentLockupAlignmentValue;
   /**
    * Optional id to attach to the primary title heading.
    * Useful when a parent section uses aria-labelledby.
diff --git a/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.container.tsx b/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.container.tsx
index 6fdddbc..31a1353 100644
--- a/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.container.tsx
+++ b/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.container.tsx
@@ -4,9 +4,12 @@ import { memo } from "react";
 import { getAssetPath, ASSETS } from "../../../lib/assetUtils";
 import ContentThumbnailTemplateView from "./ContentThumbnailTemplate.view";
 import type { ContentThumbnailTemplateProps } from "./ContentThumbnailTemplate.types";
+import { normalizeContentThumbnailVariant } from "../../../lib/propNormalization";
 
 const ContentThumbnailTemplateContainer = memo<ContentThumbnailTemplateProps>(
-  ({ post, className = "", variant = "vertical" }) => {
+  ({ post, className = "", variant: variantProp = "vertical" }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeContentThumbnailVariant(variantProp);
     // Get article-specific background image from frontmatter
     const getBackgroundImage = (
       post: ContentThumbnailTemplateProps["post"],
diff --git a/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.types.ts b/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.types.ts
index c680288..245abfb 100644
--- a/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.types.ts
+++ b/app/components/ContentThumbnailTemplate/ContentThumbnailTemplate.types.ts
@@ -1,9 +1,15 @@
 import type { BlogPost } from "../../../lib/content";
 
+export type ContentThumbnailTemplateVariantValue = "vertical" | "horizontal" | "Vertical" | "Horizontal";
+
 export interface ContentThumbnailTemplateProps {
   post: BlogPost;
   className?: string;
-  variant?: "vertical" | "horizontal";
+  /**
+   * Content thumbnail variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  variant?: ContentThumbnailTemplateVariantValue;
   slugOrder?: string[];
 }
 
diff --git a/app/components/ContextMenuItem/ContextMenuItem.container.tsx b/app/components/ContextMenuItem/ContextMenuItem.container.tsx
index ddaa795..6b524dc 100644
--- a/app/components/ContextMenuItem/ContextMenuItem.container.tsx
+++ b/app/components/ContextMenuItem/ContextMenuItem.container.tsx
@@ -3,6 +3,7 @@
 import { forwardRef, memo, useCallback } from "react";
 import { ContextMenuItemView } from "./ContextMenuItem.view";
 import type { ContextMenuItemProps } from "./ContextMenuItem.types";
+import { normalizeContextMenuItemSize } from "../../../lib/propNormalization";
 
 const ContextMenuItemContainer = forwardRef<
   HTMLDivElement,
@@ -16,11 +17,13 @@ const ContextMenuItemContainer = forwardRef<
       disabled = false,
       className = "",
       onClick,
-      size = "medium",
+      size: sizeProp = "medium",
       ...props
     },
     ref,
   ) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeContextMenuItemSize(sizeProp);
     const getTextSize = (): string => {
       switch (size) {
         case "small":
diff --git a/app/components/ContextMenuItem/ContextMenuItem.types.ts b/app/components/ContextMenuItem/ContextMenuItem.types.ts
index 1580f10..ab57073 100644
--- a/app/components/ContextMenuItem/ContextMenuItem.types.ts
+++ b/app/components/ContextMenuItem/ContextMenuItem.types.ts
@@ -1,3 +1,5 @@
+export type ContextMenuItemSizeValue = "small" | "medium" | "large" | "Small" | "Medium" | "Large";
+
 export interface ContextMenuItemProps extends React.HTMLAttributes<HTMLDivElement> {
   children?: React.ReactNode;
   selected?: boolean;
@@ -7,7 +9,11 @@ export interface ContextMenuItemProps extends React.HTMLAttributes<HTMLDivElemen
   onClick?: (
     _e: React.MouseEvent<HTMLDivElement> | React.KeyboardEvent<HTMLDivElement>,
   ) => void;
-  size?: "small" | "medium" | "large";
+  /**
+   * Context menu item size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: ContextMenuItemSizeValue;
 }
 
 export interface ContextMenuItemViewProps {
diff --git a/app/components/ImagePlaceholder.tsx b/app/components/ImagePlaceholder.tsx
index e25b572..c1a3101 100644
--- a/app/components/ImagePlaceholder.tsx
+++ b/app/components/ImagePlaceholder.tsx
@@ -1,12 +1,31 @@
 "use client";
 
 import { memo } from "react";
+import { normalizeImagePlaceholderColor } from "../../lib/propNormalization";
+
+export type ImagePlaceholderColorValue =
+  | "blue"
+  | "green"
+  | "purple"
+  | "red"
+  | "orange"
+  | "teal"
+  | "Blue"
+  | "Green"
+  | "Purple"
+  | "Red"
+  | "Orange"
+  | "Teal";
 
 interface ImagePlaceholderProps {
   width?: number;
   height?: number;
   text?: string;
-  color?: "blue" | "green" | "purple" | "red" | "orange" | "teal";
+  /**
+   * Image placeholder color. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  color?: ImagePlaceholderColorValue;
   className?: string;
 }
 
@@ -19,9 +38,11 @@ const ImagePlaceholder = memo<ImagePlaceholderProps>(
     width = 260,
     height = 390,
     text = "Blog Image",
-    color = "blue",
+    color: colorProp = "blue",
     className = "",
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const color = normalizeImagePlaceholderColor(colorProp);
     const colors: Record<string, string> = {
       blue: "bg-blue-500",
       green: "bg-green-500",
diff --git a/app/components/MenuBar.tsx b/app/components/MenuBar.tsx
index 18173b6..4d4cd13 100644
--- a/app/components/MenuBar.tsx
+++ b/app/components/MenuBar.tsx
@@ -2,15 +2,32 @@
 
 import { memo } from "react";
 import { useTranslation } from "../contexts/MessagesContext";
+import { normalizeMenuBarSize } from "../../lib/propNormalization";
+
+export type MenuBarSizeValue =
+  | "xsmall"
+  | "default"
+  | "medium"
+  | "large"
+  | "XSmall"
+  | "Default"
+  | "Medium"
+  | "Large";
 
 interface MenuBarProps extends React.HTMLAttributes<HTMLElement> {
   children?: React.ReactNode;
   className?: string;
-  size?: "xsmall" | "default" | "medium" | "large";
+  /**
+   * Menu bar size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: MenuBarSizeValue;
 }
 
 const MenuBar = memo<MenuBarProps>(
-  ({ children, className = "", size = "default", ...props }) => {
+  ({ children, className = "", size: sizeProp = "default", ...props }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeMenuBarSize(sizeProp);
     const t = useTranslation("menuBar");
     const sizeStyles: Record<string, string> = {
       xsmall:
diff --git a/app/components/MenuBarItem/MenuBarItem.container.tsx b/app/components/MenuBarItem/MenuBarItem.container.tsx
index 1ca4ba7..d55a605 100644
--- a/app/components/MenuBarItem/MenuBarItem.container.tsx
+++ b/app/components/MenuBarItem/MenuBarItem.container.tsx
@@ -3,19 +3,24 @@
 import { memo } from "react";
 import MenuBarItemView from "./MenuBarItem.view";
 import type { MenuBarItemProps } from "./MenuBarItem.types";
+import { normalizeMenuBarItemVariant } from "../../../lib/propNormalization";
 
 const MenuBarItemContainer = memo<MenuBarItemProps>(
   ({
     href = "#",
     children,
-    variant = "default",
-    size = "default",
+    variant: variantProp = "default",
+    size: sizeProp = "default",
     className = "",
     disabled = false,
     isActive = false,
     ariaLabel,
     ...props
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeMenuBarItemVariant(variantProp);
+    // Size has many values, normalize by lowercasing
+    const size = (sizeProp?.toLowerCase() || "default") as typeof sizeProp;
     const variantStyles: Record<string, string> = {
       default:
         "bg-transparent text-[var(--color-content-default-brand-primary)] hover:bg-[var(--color-surface-default-tertiary)] hover:text-[var(--color-content-default-brand-primary)] hover:scale-[1.02] active:bg-transparent active:text-[var(--color-content-default-brand-primary)] active:scale-[0.98] disabled:bg-[var(--color-surface-default-tertiary)] disabled:text-[var(--color-content-default-tertiary)] disabled:opacity-50 disabled:cursor-not-allowed disabled:hover:scale-100 disabled:active:scale-100",
diff --git a/app/components/MenuBarItem/MenuBarItem.types.ts b/app/components/MenuBarItem/MenuBarItem.types.ts
index d8da10b..3878a49 100644
--- a/app/components/MenuBarItem/MenuBarItem.types.ts
+++ b/app/components/MenuBarItem/MenuBarItem.types.ts
@@ -1,18 +1,40 @@
+export type MenuBarItemSizeValue =
+  | "default"
+  | "xsmall"
+  | "xsmallUseCases"
+  | "home"
+  | "homeMd"
+  | "homeUseCases"
+  | "large"
+  | "largeUseCases"
+  | "homeXlarge"
+  | "xlarge"
+  | "Default"
+  | "XSmall"
+  | "XSmallUseCases"
+  | "Home"
+  | "HomeMd"
+  | "HomeUseCases"
+  | "Large"
+  | "LargeUseCases"
+  | "HomeXlarge"
+  | "XLarge";
+
+export type MenuBarItemVariantValue = "default" | "home" | "Default" | "Home";
+
 export interface MenuBarItemProps extends React.AnchorHTMLAttributes<HTMLAnchorElement> {
   href?: string;
   children?: React.ReactNode;
-  variant?: "default" | "home";
-  size?:
-    | "default"
-    | "xsmall"
-    | "xsmallUseCases"
-    | "home"
-    | "homeMd"
-    | "homeUseCases"
-    | "large"
-    | "largeUseCases"
-    | "homeXlarge"
-    | "xlarge";
+  /**
+   * Menu bar item variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  variant?: MenuBarItemVariantValue;
+  /**
+   * Menu bar item size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: MenuBarItemSizeValue;
   className?: string;
   disabled?: boolean;
   isActive?: boolean;
diff --git a/app/components/NavigationItem/NavigationItem.container.tsx b/app/components/NavigationItem/NavigationItem.container.tsx
index 7e84509..05ac949 100644
--- a/app/components/NavigationItem/NavigationItem.container.tsx
+++ b/app/components/NavigationItem/NavigationItem.container.tsx
@@ -3,18 +3,22 @@
 import { memo } from "react";
 import NavigationItemView from "./NavigationItem.view";
 import type { NavigationItemProps } from "./NavigationItem.types";
+import { normalizeNavigationItemVariant, normalizeNavigationItemSize } from "../../../lib/propNormalization";
 
 const NavigationItemContainer = memo<NavigationItemProps>(
   ({
     href = "#",
     children,
-    variant = "default",
-    size = "default",
+    variant: variantProp = "default",
+    size: sizeProp = "default",
     className = "",
     disabled = false,
     isActive = false,
     ...props
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeNavigationItemVariant(variantProp);
+    const size = normalizeNavigationItemSize(sizeProp);
     // Variant styles
     const variantStyles: Record<string, string> = {
       default:
diff --git a/app/components/NavigationItem/NavigationItem.types.ts b/app/components/NavigationItem/NavigationItem.types.ts
index c5f9de1..2338b59 100644
--- a/app/components/NavigationItem/NavigationItem.types.ts
+++ b/app/components/NavigationItem/NavigationItem.types.ts
@@ -1,11 +1,22 @@
+export type NavigationItemVariantValue = "default" | "Default";
+export type NavigationItemSizeValue = "default" | "xsmall" | "Default" | "XSmall";
+
 export interface NavigationItemProps extends Omit<
   React.AnchorHTMLAttributes<HTMLAnchorElement>,
   "isActive"
 > {
   href?: string;
   children?: React.ReactNode;
-  variant?: "default";
-  size?: "default" | "xsmall";
+  /**
+   * Navigation item variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  variant?: NavigationItemVariantValue;
+  /**
+   * Navigation item size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: NavigationItemSizeValue;
   className?: string;
   disabled?: boolean;
   isActive?: boolean;
diff --git a/app/components/NumberCard.tsx b/app/components/NumberCard.tsx
index 5b4c1b4..c1722a3 100644
--- a/app/components/NumberCard.tsx
+++ b/app/components/NumberCard.tsx
@@ -3,21 +3,39 @@
 import { memo } from "react";
 import SectionNumber from "./SectionNumber";
 
+import { normalizeNumberCardSize } from "../../lib/propNormalization";
+
+export type NumberCardSizeValue =
+  | "Small"
+  | "Medium"
+  | "Large"
+  | "XLarge"
+  | "small"
+  | "medium"
+  | "large"
+  | "xlarge";
+
 interface NumberCardProps {
   number: number;
   text: string;
-  size?: "Small" | "Medium" | "Large" | "XLarge";
+  /**
+   * Number card size. Accepts both PascalCase (Figma default) and lowercase (case-insensitive).
+   * Figma uses PascalCase, codebase uses PascalCase - both are supported.
+   */
+  size?: NumberCardSizeValue;
   iconShape?: string;
   iconColor?: string;
 }
 
-const NumberCard = memo<NumberCardProps>(({ number, text, size }) => {
+const NumberCard = memo<NumberCardProps>(({ number, text, size: sizeProp }) => {
   // Base classes common to all sizes
   const baseClasses = "bg-[var(--color-surface-inverse-primary)] rounded-[12px] shadow-lg";
 
   // If size prop is provided, use explicit size classes
   // Otherwise, use responsive breakpoints for backward compatibility
-  if (size) {
+  if (sizeProp) {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeNumberCardSize(sizeProp);
     // Size-specific classes
     const sizeClasses = {
       Small: "flex flex-col items-end justify-center gap-4 p-5 relative",
diff --git a/app/components/QuoteBlock/QuoteBlock.container.tsx b/app/components/QuoteBlock/QuoteBlock.container.tsx
index eb3cf5d..0d8bd4f 100644
--- a/app/components/QuoteBlock/QuoteBlock.container.tsx
+++ b/app/components/QuoteBlock/QuoteBlock.container.tsx
@@ -4,10 +4,11 @@ import { memo, useState } from "react";
 import { logger } from "../../../lib/logger";
 import QuoteBlockView from "./QuoteBlock.view";
 import type { QuoteBlockProps, VariantConfig } from "./QuoteBlock.types";
+import { normalizeQuoteBlockVariant } from "../../../lib/propNormalization";
 
 const QuoteBlockContainer = memo<QuoteBlockProps>(
   ({
-    variant = "standard",
+    variant: variantProp = "standard",
     className = "",
     quote = "The rules of decision-making must be open and available to everyone, and this can happen only if they are formalized.",
     author = "Jo Freeman",
@@ -17,6 +18,8 @@ const QuoteBlockContainer = memo<QuoteBlockProps>(
     fallbackAvatarSrc = "/assets/Quote_Avatar.svg",
     onError,
   }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeQuoteBlockVariant(variantProp);
     const [imageError, setImageError] = useState(false);
     const [imageLoading, setImageLoading] = useState(true);
 
diff --git a/app/components/QuoteBlock/QuoteBlock.types.ts b/app/components/QuoteBlock/QuoteBlock.types.ts
index 478aa29..dc2555f 100644
--- a/app/components/QuoteBlock/QuoteBlock.types.ts
+++ b/app/components/QuoteBlock/QuoteBlock.types.ts
@@ -1,5 +1,17 @@
+export type QuoteBlockVariantValue =
+  | "compact"
+  | "standard"
+  | "extended"
+  | "Compact"
+  | "Standard"
+  | "Extended";
+
 export interface QuoteBlockProps {
-  variant?: "compact" | "standard" | "extended";
+  /**
+   * Quote block variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  variant?: QuoteBlockVariantValue;
   className?: string;
   quote?: string;
   author?: string;
diff --git a/app/components/RadioButton/RadioButton.container.tsx b/app/components/RadioButton/RadioButton.container.tsx
index 91812a5..24628b6 100644
--- a/app/components/RadioButton/RadioButton.container.tsx
+++ b/app/components/RadioButton/RadioButton.container.tsx
@@ -3,11 +3,13 @@
 import { memo, useCallback, useId } from "react";
 import { RadioButtonView } from "./RadioButton.view";
 import type { RadioButtonProps } from "./RadioButton.types";
+import { normalizeMode, normalizeState } from "../../../lib/propNormalization";
 
 const RadioButtonContainer = ({
   checked = false,
-  mode = "standard",
-  state = "default", // This state prop is now only for static display in Storybook/Preview
+  mode: modeProp = "standard",
+  state: stateProp = "default", // This state prop is now only for static display in Storybook/Preview
+  indicator: _indicator = true, // From Figma: whether to show the indicator dot (currently not used in view)
   disabled = false,
   label,
   onChange,
@@ -17,6 +19,13 @@ const RadioButtonContainer = ({
   ariaLabel,
   className = "",
 }: RadioButtonProps) => {
+  // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+  const mode = normalizeMode(modeProp);
+  const state = normalizeState(stateProp);
+  
+  // If state is "selected", it means checked in Figma terms
+  const normalizedState = state === "selected" || checked ? "selected" : state;
+  
   const isInverse = mode === "inverse";
   const isStandard = mode === "standard";
 
@@ -113,7 +122,7 @@ const RadioButtonContainer = ({
       radioId={radioId}
       checked={checked}
       mode={mode}
-      state={state} // Passed for static display in Storybook/Preview
+      state={normalizedState} // Normalized state (handles "selected" from Figma)
       disabled={disabled}
       label={label}
       name={name}
diff --git a/app/components/RadioButton/RadioButton.types.ts b/app/components/RadioButton/RadioButton.types.ts
index ed1c247..63900c7 100644
--- a/app/components/RadioButton/RadioButton.types.ts
+++ b/app/components/RadioButton/RadioButton.types.ts
@@ -1,7 +1,22 @@
+import type { ModeValue, StateValue } from "../../../lib/propNormalization";
+
 export interface RadioButtonProps {
   checked?: boolean;
-  mode?: "standard" | "inverse";
-  state?: "default" | "hover" | "focus";
+  /**
+   * Mode variant. Accepts both "standard"/"Standard" and "inverse"/"Inverse" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  mode?: ModeValue;
+  /**
+   * Visual state. Accepts "default"/"Default", "hover"/"Hover", "focus"/"Focus", "selected"/"Selected" (case-insensitive).
+   * Note: "selected" state is represented by the `checked` prop in practice.
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: StateValue;
+  /**
+   * Whether to show the indicator dot. From Figma specification.
+   */
+  indicator?: boolean;
   disabled?: boolean;
   label?: string;
   onChange?: (_data: { checked: boolean; value?: string }) => void;
@@ -16,7 +31,7 @@ export interface RadioButtonViewProps {
   radioId: string;
   checked: boolean;
   mode: "standard" | "inverse";
-  state: "default" | "hover" | "focus";
+  state: "default" | "hover" | "focus" | "selected";
   disabled: boolean;
   label?: string;
   name?: string;
diff --git a/app/components/RadioGroup/RadioGroup.container.tsx b/app/components/RadioGroup/RadioGroup.container.tsx
index c31689f..25695c7 100644
--- a/app/components/RadioGroup/RadioGroup.container.tsx
+++ b/app/components/RadioGroup/RadioGroup.container.tsx
@@ -3,18 +3,26 @@
 import { memo, useCallback, useId } from "react";
 import { RadioGroupView } from "./RadioGroup.view";
 import type { RadioGroupProps } from "./RadioGroup.types";
+import { normalizeMode, normalizeState } from "../../../lib/propNormalization";
 
 const RadioGroupContainer = ({
   name,
   value,
   onChange,
-  mode = "standard",
-  state = "default",
+  mode: modeProp = "standard",
+  state: stateProp = "default",
   disabled = false,
   options = [],
   className = "",
   ...props
 }: RadioGroupProps) => {
+  // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+  const mode = normalizeMode(modeProp);
+  // Normalize state, but handle "With Subtext" separately (it's represented by options with subtext)
+  const state = typeof stateProp === "string" && 
+    (stateProp.toLowerCase() === "with subtext" || stateProp === "With Subtext")
+    ? "default" // "With Subtext" is handled via RadioOption.subtext, use default state
+    : normalizeState(stateProp);
   // Generate unique ID for accessibility if not provided
   const generatedId = useId();
   const groupId = name || `radio-group-${generatedId}`;
diff --git a/app/components/RadioGroup/RadioGroup.types.ts b/app/components/RadioGroup/RadioGroup.types.ts
index b044e1b..db44f87 100644
--- a/app/components/RadioGroup/RadioGroup.types.ts
+++ b/app/components/RadioGroup/RadioGroup.types.ts
@@ -5,12 +5,23 @@ export interface RadioOption {
   ariaLabel?: string;
 }
 
+import type { ModeValue, StateValue } from "../../../lib/propNormalization";
+
 export interface RadioGroupProps {
   name?: string;
   value?: string;
   onChange?: (_data: { value: string }) => void;
-  mode?: "standard" | "inverse";
-  state?: "default" | "hover" | "focus";
+  /**
+   * Mode variant. Accepts both "standard"/"Standard" and "inverse"/"Inverse" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  mode?: ModeValue;
+  /**
+   * Visual state. Accepts "default"/"Default", "hover"/"Hover", "focus"/"Focus" (case-insensitive).
+   * Figma also supports "With Subtext" state, which is handled via RadioOption.subtext.
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: StateValue | "With Subtext" | "with subtext";
   disabled?: boolean;
   options?: RadioOption[];
   className?: string;
diff --git a/app/components/SectionHeader.tsx b/app/components/SectionHeader.tsx
index 69d2c8f..3c06485 100644
--- a/app/components/SectionHeader.tsx
+++ b/app/components/SectionHeader.tsx
@@ -1,16 +1,25 @@
 "use client";
 
 import { memo } from "react";
+import { normalizeSectionHeaderVariant } from "../../lib/propNormalization";
+
+export type SectionHeaderVariantValue = "default" | "multi-line" | "Default" | "Multi-Line";
 
 interface SectionHeaderProps {
   title: string;
   subtitle: string;
   titleLg?: string;
-  variant?: "default" | "multi-line";
+  /**
+   * Section header variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  variant?: SectionHeaderVariantValue;
 }
 
 const SectionHeader = memo<SectionHeaderProps>(
-  ({ title, subtitle, titleLg, variant = "default" }) => {
+  ({ title, subtitle, titleLg, variant: variantProp = "default" }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const variant = normalizeSectionHeaderVariant(variantProp);
     return (
       <div
         className={
diff --git a/app/components/SelectInput/SelectInput.container.tsx b/app/components/SelectInput/SelectInput.container.tsx
index 0449652..6318265 100644
--- a/app/components/SelectInput/SelectInput.container.tsx
+++ b/app/components/SelectInput/SelectInput.container.tsx
@@ -16,13 +16,16 @@ import React, {
 import { useClickOutside } from "../../hooks";
 import { SelectInputView } from "./SelectInput.view";
 import type { SelectInputProps } from "./SelectInput.types";
+import { normalizeState, normalizeSmallMediumLargeSize, normalizeLabelVariant } from "../../../lib/propNormalization";
 
 const SelectInputContainer = forwardRef<HTMLButtonElement, SelectInputProps>(
   (
     {
       id,
       label,
-      state: externalState = "default",
+      labelVariant: labelVariantProp,
+      size: sizeProp,
+      state: externalStateProp = "default",
       disabled = false,
       error = false,
       placeholder = "Choose an option",
@@ -35,6 +38,12 @@ const SelectInputContainer = forwardRef<HTMLButtonElement, SelectInputProps>(
     },
     ref,
   ) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    // Note: labelVariant and size are normalized for future use but not yet implemented in the view
+    const _labelVariant = labelVariantProp ? normalizeLabelVariant(labelVariantProp) : undefined;
+    const _size = sizeProp ? normalizeSmallMediumLargeSize(sizeProp) : undefined;
+    const externalState = normalizeState(externalStateProp);
+    
     const generatedId = useId();
     const selectId = id || `select-input-${generatedId}`;
     const labelId = `${selectId}-label`;
diff --git a/app/components/SelectInput/SelectInput.types.ts b/app/components/SelectInput/SelectInput.types.ts
index b3dd7b4..364b800 100644
--- a/app/components/SelectInput/SelectInput.types.ts
+++ b/app/components/SelectInput/SelectInput.types.ts
@@ -5,12 +5,29 @@ export interface SelectOptionData {
   label: string;
 }
 
+import type { StateValue } from "../../../lib/propNormalization";
+
+export type SelectInputLabelVariantValue = "default" | "horizontal" | "Default" | "Horizontal";
+export type SelectInputSizeValue = "small" | "medium" | "large" | "Small" | "Medium" | "Large";
+
 export interface SelectInputProps {
   id?: string;
   label?: string;
-  labelVariant?: "default" | "horizontal";
-  size?: "small" | "medium" | "large";
-  state?: "default" | "hover" | "focus";
+  /**
+   * Label variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  labelVariant?: SelectInputLabelVariantValue;
+  /**
+   * Select input size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: SelectInputSizeValue;
+  /**
+   * Visual state. Accepts "default"/"Default", "hover"/"Hover", "focus"/"Focus" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: StateValue;
   disabled?: boolean;
   error?: boolean;
   placeholder?: string;
diff --git a/app/components/SelectOption/SelectOption.container.tsx b/app/components/SelectOption/SelectOption.container.tsx
index c3143b0..f387a1a 100644
--- a/app/components/SelectOption/SelectOption.container.tsx
+++ b/app/components/SelectOption/SelectOption.container.tsx
@@ -3,6 +3,7 @@
 import { forwardRef, memo, useCallback } from "react";
 import { SelectOptionView } from "./SelectOption.view";
 import type { SelectOptionProps } from "./SelectOption.types";
+import { normalizeContextMenuItemSize } from "../../../lib/propNormalization";
 
 const SelectOptionContainer = forwardRef<HTMLDivElement, SelectOptionProps>(
   (
@@ -12,11 +13,13 @@ const SelectOptionContainer = forwardRef<HTMLDivElement, SelectOptionProps>(
       disabled = false,
       className = "",
       onClick,
-      size = "medium",
+      size: sizeProp = "medium",
       ...props
     },
     ref,
   ) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeContextMenuItemSize(sizeProp);
     const getTextSize = (): string => {
       switch (size) {
         case "small":
diff --git a/app/components/SelectOption/SelectOption.types.ts b/app/components/SelectOption/SelectOption.types.ts
index 4fca4b9..4fb9c5e 100644
--- a/app/components/SelectOption/SelectOption.types.ts
+++ b/app/components/SelectOption/SelectOption.types.ts
@@ -1,3 +1,5 @@
+export type SelectOptionSizeValue = "small" | "medium" | "large" | "Small" | "Medium" | "Large";
+
 export interface SelectOptionProps {
   children?: React.ReactNode;
   selected?: boolean;
@@ -6,7 +8,11 @@ export interface SelectOptionProps {
   onClick?: (
     _e: React.MouseEvent<HTMLDivElement> | React.KeyboardEvent<HTMLDivElement>,
   ) => void;
-  size?: "small" | "medium" | "large";
+  /**
+   * Select option size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: SelectOptionSizeValue;
 }
 
 export interface SelectOptionViewProps {
diff --git a/app/components/Switch/Switch.container.tsx b/app/components/Switch/Switch.container.tsx
index b4d374d..64602b5 100644
--- a/app/components/Switch/Switch.container.tsx
+++ b/app/components/Switch/Switch.container.tsx
@@ -3,6 +3,7 @@
 import { memo, useCallback, useId, forwardRef } from "react";
 import { SwitchView } from "./Switch.view";
 import type { SwitchProps } from "./Switch.types";
+import { normalizeState } from "../../../lib/propNormalization";
 
 const SwitchContainer = memo(
   forwardRef<HTMLButtonElement, SwitchProps>((props, ref) => {
@@ -11,11 +12,14 @@ const SwitchContainer = memo(
       onChange,
       onFocus,
       onBlur,
-      state = "default",
+      state: stateProp = "default",
       label,
       className = "",
       ...rest
     } = props;
+    
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const state = normalizeState(stateProp);
 
     const switchId = useId();
 
diff --git a/app/components/Switch/Switch.types.ts b/app/components/Switch/Switch.types.ts
index abaa740..93569ad 100644
--- a/app/components/Switch/Switch.types.ts
+++ b/app/components/Switch/Switch.types.ts
@@ -1,3 +1,5 @@
+import type { StateValue } from "../../../lib/propNormalization";
+
 export interface SwitchProps extends Omit<
   React.ButtonHTMLAttributes<HTMLButtonElement>,
   "onChange"
@@ -10,7 +12,11 @@ export interface SwitchProps extends Omit<
   ) => void;
   onFocus?: (_e: React.FocusEvent<HTMLButtonElement>) => void;
   onBlur?: (_e: React.FocusEvent<HTMLButtonElement>) => void;
-  state?: "default" | "hover" | "focus";
+  /**
+   * Visual state. Accepts "default"/"Default", "hover"/"Hover", "focus"/"Focus" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: StateValue;
   label?: string;
   className?: string;
 }
diff --git a/app/components/TextArea/TextArea.container.tsx b/app/components/TextArea/TextArea.container.tsx
index ae875ee..7d99dee 100644
--- a/app/components/TextArea/TextArea.container.tsx
+++ b/app/components/TextArea/TextArea.container.tsx
@@ -4,13 +4,14 @@ import { memo, forwardRef } from "react";
 import { useComponentId, useFormField } from "../../hooks";
 import { TextAreaView } from "./TextArea.view";
 import type { TextAreaProps } from "./TextArea.types";
+import { normalizeInputState, normalizeSmallMediumLargeSize, normalizeLabelVariant } from "../../../lib/propNormalization";
 
 const TextAreaContainer = forwardRef<HTMLTextAreaElement, TextAreaProps>(
   (
     {
-      size = "medium",
-      labelVariant = "default",
-      state = "default",
+      size: sizeProp = "medium",
+      labelVariant: labelVariantProp = "default",
+      state: stateProp = "default",
       disabled = false,
       error = false,
       label,
@@ -27,6 +28,10 @@ const TextAreaContainer = forwardRef<HTMLTextAreaElement, TextAreaProps>(
     },
     ref,
   ) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const size = normalizeSmallMediumLargeSize(sizeProp);
+    const labelVariant = normalizeLabelVariant(labelVariantProp);
+    const state = normalizeInputState(stateProp);
     // Generate unique ID for accessibility if not provided
     const { id: textareaId, labelId } = useComponentId("textarea", id);
 
diff --git a/app/components/TextArea/TextArea.types.ts b/app/components/TextArea/TextArea.types.ts
index 0482fea..11f158c 100644
--- a/app/components/TextArea/TextArea.types.ts
+++ b/app/components/TextArea/TextArea.types.ts
@@ -1,10 +1,27 @@
+import type { InputStateValue } from "../../../lib/propNormalization";
+
+export type TextAreaSizeValue = "small" | "medium" | "large" | "Small" | "Medium" | "Large";
+export type TextAreaLabelVariantValue = "default" | "horizontal" | "Default" | "Horizontal";
+
 export interface TextAreaProps extends Omit<
   React.TextareaHTMLAttributes<HTMLTextAreaElement>,
   "size" | "onChange" | "onFocus" | "onBlur"
 > {
-  size?: "small" | "medium" | "large";
-  labelVariant?: "default" | "horizontal";
-  state?: "default" | "active" | "hover" | "focus";
+  /**
+   * Text area size. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  size?: TextAreaSizeValue;
+  /**
+   * Label variant. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  labelVariant?: TextAreaLabelVariantValue;
+  /**
+   * Visual state. Accepts "default"/"Default", "active"/"Active", "hover"/"Hover", "focus"/"Focus" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: InputStateValue;
   disabled?: boolean;
   error?: boolean;
   label?: string;
diff --git a/app/components/TextInput/TextInput.container.tsx b/app/components/TextInput/TextInput.container.tsx
index bb7ff0d..4236354 100644
--- a/app/components/TextInput/TextInput.container.tsx
+++ b/app/components/TextInput/TextInput.container.tsx
@@ -4,11 +4,12 @@ import { memo, forwardRef, useState, useRef } from "react";
 import { useComponentId, useFormField } from "../../hooks";
 import { TextInputView } from "./TextInput.view";
 import type { TextInputProps } from "./TextInput.types";
+import { normalizeInputState } from "../../../lib/propNormalization";
 
 const TextInputContainer = forwardRef<HTMLInputElement, TextInputProps>(
   (
     {
-      state: externalState = "default",
+      state: externalStateProp = "default",
       disabled = false,
       error = false,
       label,
@@ -26,6 +27,9 @@ const TextInputContainer = forwardRef<HTMLInputElement, TextInputProps>(
     },
     ref,
   ) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const externalState = normalizeInputState(externalStateProp);
+    
     // Generate unique ID for accessibility if not provided
     const { id: inputId, labelId } = useComponentId("text-input", id);
 
diff --git a/app/components/TextInput/TextInput.types.ts b/app/components/TextInput/TextInput.types.ts
index ef8e0fd..beff4cc 100644
--- a/app/components/TextInput/TextInput.types.ts
+++ b/app/components/TextInput/TextInput.types.ts
@@ -1,8 +1,14 @@
+import type { InputStateValue } from "../../../lib/propNormalization";
+
 export interface TextInputProps extends Omit<
   React.InputHTMLAttributes<HTMLInputElement>,
   "size" | "onChange" | "onFocus" | "onBlur"
 > {
-  state?: "default" | "active" | "hover" | "focus";
+  /**
+   * Visual state. Accepts "default"/"Default", "active"/"Active", "hover"/"Hover", "focus"/"Focus" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: InputStateValue;
   disabled?: boolean;
   error?: boolean;
   label?: string;
diff --git a/app/components/Toggle/Toggle.container.tsx b/app/components/Toggle/Toggle.container.tsx
index c2dfe15..197eebe 100644
--- a/app/components/Toggle/Toggle.container.tsx
+++ b/app/components/Toggle/Toggle.container.tsx
@@ -3,6 +3,7 @@
 import { memo, useCallback, useId, forwardRef } from "react";
 import { ToggleView } from "./Toggle.view";
 import type { ToggleProps } from "./Toggle.types";
+import { normalizeState } from "../../../lib/propNormalization";
 
 const ToggleContainer = forwardRef<HTMLButtonElement, ToggleProps>(
   (
@@ -13,7 +14,7 @@ const ToggleContainer = forwardRef<HTMLButtonElement, ToggleProps>(
       onFocus,
       onBlur,
       disabled = false,
-      state = "default",
+      state: stateProp = "default",
       showIcon = false,
       showText = false,
       icon = "I",
@@ -23,6 +24,8 @@ const ToggleContainer = forwardRef<HTMLButtonElement, ToggleProps>(
     },
     ref,
   ) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const state = normalizeState(stateProp);
     const toggleId = useId();
     const labelId = useId();
 
diff --git a/app/components/Toggle/Toggle.types.ts b/app/components/Toggle/Toggle.types.ts
index efd36ff..a0fe919 100644
--- a/app/components/Toggle/Toggle.types.ts
+++ b/app/components/Toggle/Toggle.types.ts
@@ -1,3 +1,5 @@
+import type { StateValue } from "../../../lib/propNormalization";
+
 export interface ToggleProps extends Omit<
   React.ButtonHTMLAttributes<HTMLButtonElement>,
   "onChange"
@@ -12,7 +14,11 @@ export interface ToggleProps extends Omit<
   onFocus?: (_e: React.FocusEvent<HTMLButtonElement>) => void;
   onBlur?: (_e: React.FocusEvent<HTMLButtonElement>) => void;
   disabled?: boolean;
-  state?: "default" | "hover" | "focus";
+  /**
+   * Visual state. Accepts "default"/"Default", "hover"/"Hover", "focus"/"Focus" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: StateValue;
   showIcon?: boolean;
   showText?: boolean;
   icon?: string;
diff --git a/app/components/ToggleGroup/ToggleGroup.container.tsx b/app/components/ToggleGroup/ToggleGroup.container.tsx
index 37b9182..4e2ad1d 100644
--- a/app/components/ToggleGroup/ToggleGroup.container.tsx
+++ b/app/components/ToggleGroup/ToggleGroup.container.tsx
@@ -3,14 +3,15 @@
 import { memo, useCallback, useId, forwardRef } from "react";
 import { ToggleGroupView } from "./ToggleGroup.view";
 import type { ToggleGroupProps } from "./ToggleGroup.types";
+import { normalizeToggleState, normalizeToggleGroupPosition } from "../../../lib/propNormalization";
 
 const ToggleGroupContainer = memo(
   forwardRef<HTMLButtonElement, ToggleGroupProps>((props, _ref) => {
     const {
       children,
       className = "",
-      position = "left",
-      state = "default",
+      position: positionProp = "left",
+      state: stateProp = "default",
       showText = true,
       ariaLabel,
       onChange,
@@ -18,6 +19,10 @@ const ToggleGroupContainer = memo(
       onBlur,
       ...rest
     } = props;
+    
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const position = normalizeToggleGroupPosition(positionProp);
+    const state = normalizeToggleState(stateProp);
 
     const groupId = useId();
 
diff --git a/app/components/ToggleGroup/ToggleGroup.types.ts b/app/components/ToggleGroup/ToggleGroup.types.ts
index 30fc2be..993a8d8 100644
--- a/app/components/ToggleGroup/ToggleGroup.types.ts
+++ b/app/components/ToggleGroup/ToggleGroup.types.ts
@@ -1,11 +1,23 @@
+import type { StateValue } from "../../../lib/propNormalization";
+
+export type ToggleGroupPositionValue = "left" | "middle" | "right" | "Left" | "Middle" | "Right";
+
 export interface ToggleGroupProps extends Omit<
   React.ButtonHTMLAttributes<HTMLButtonElement>,
   "onChange"
 > {
   children?: React.ReactNode;
   className?: string;
-  position?: "left" | "middle" | "right";
-  state?: "default" | "hover" | "focus" | "selected";
+  /**
+   * Toggle group position. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  position?: ToggleGroupPositionValue;
+  /**
+   * Visual state. Accepts "default"/"Default", "hover"/"Hover", "focus"/"Focus", "selected"/"Selected" (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  state?: StateValue | "selected" | "Selected";
   showText?: boolean;
   ariaLabel?: string;
   onChange?: (
diff --git a/app/components/Tooltip/Tooltip.container.tsx b/app/components/Tooltip/Tooltip.container.tsx
index 0a16aba..32e2b2f 100644
--- a/app/components/Tooltip/Tooltip.container.tsx
+++ b/app/components/Tooltip/Tooltip.container.tsx
@@ -3,9 +3,12 @@
 import { memo, useState } from "react";
 import { TooltipView } from "./Tooltip.view";
 import type { TooltipProps } from "./Tooltip.types";
+import { normalizeTooltipPosition } from "../../../lib/propNormalization";
 
 const TooltipContainer = memo<TooltipProps>(
-  ({ children, text, position = "top", className = "", disabled = false }) => {
+  ({ children, text, position: positionProp = "top", className = "", disabled = false }) => {
+    // Normalize props to handle both PascalCase (Figma) and lowercase (codebase)
+    const position = normalizeTooltipPosition(positionProp);
     const [isVisible, setIsVisible] = useState(false);
 
     if (disabled) {
diff --git a/app/components/Tooltip/Tooltip.types.ts b/app/components/Tooltip/Tooltip.types.ts
index b746924..fc778ba 100644
--- a/app/components/Tooltip/Tooltip.types.ts
+++ b/app/components/Tooltip/Tooltip.types.ts
@@ -1,7 +1,13 @@
+export type TooltipPositionValue = "top" | "bottom" | "Top" | "Bottom";
+
 export interface TooltipProps {
   children: React.ReactNode;
   text: string;
-  position?: "top" | "bottom";
+  /**
+   * Tooltip position. Accepts both lowercase and PascalCase (case-insensitive).
+   * Figma uses PascalCase, codebase uses lowercase - both are supported.
+   */
+  position?: TooltipPositionValue;
   className?: string;
   disabled?: boolean;
 }
diff --git a/lib/propNormalization.ts b/lib/propNormalization.ts
new file mode 100644
index 0000000..da0d570
--- /dev/null
+++ b/lib/propNormalization.ts
@@ -0,0 +1,514 @@
+/**
+ * Utility functions for normalizing component props to match Figma specifications
+ * while maintaining backward compatibility with existing lowercase usage.
+ * 
+ * Figma uses PascalCase (e.g., "Standard", "Inverse") but codebase uses lowercase.
+ * These helpers accept both formats and normalize to lowercase for internal use.
+ */
+
+/**
+ * Normalize mode prop values (Standard/Inverse -> standard/inverse)
+ */
+export function normalizeMode(
+  value: string | undefined,
+  defaultValue: "standard" | "inverse" = "standard"
+): "standard" | "inverse" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  if (normalized === "standard" || normalized === "inverse") {
+    return normalized;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize state prop values (Default/Hover/Focus/Selected -> default/hover/focus/selected)
+ */
+export function normalizeState(
+  value: string | undefined,
+  defaultValue: "default" | "hover" | "focus" | "selected" = "default"
+): "default" | "hover" | "focus" | "selected" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  if (
+    normalized === "default" ||
+    normalized === "hover" ||
+    normalized === "focus" ||
+    normalized === "selected"
+  ) {
+    return normalized;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize state prop values for form inputs (Default/Active/Hover/Focus)
+ */
+export function normalizeInputState(
+  value: string | undefined,
+  defaultValue: "default" | "active" | "hover" | "focus" = "default"
+): "default" | "active" | "hover" | "focus" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  if (
+    normalized === "default" ||
+    normalized === "active" ||
+    normalized === "hover" ||
+    normalized === "focus"
+  ) {
+    return normalized;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize toggle state prop values (Default/Hover/Focus/Selected)
+ */
+export function normalizeToggleState(
+  value: string | undefined,
+  defaultValue: "default" | "hover" | "focus" | "selected" = "default"
+): "default" | "hover" | "focus" | "selected" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  if (
+    normalized === "default" ||
+    normalized === "hover" ||
+    normalized === "focus" ||
+    normalized === "selected"
+  ) {
+    return normalized;
+  }
+  return defaultValue;
+}
+
+/**
+ * Type helper for case-insensitive mode prop
+ */
+export type ModeValue = "standard" | "inverse" | "Standard" | "Inverse";
+
+/**
+ * Type helper for case-insensitive state prop
+ */
+export type StateValue =
+  | "default"
+  | "hover"
+  | "focus"
+  | "selected"
+  | "Default"
+  | "Hover"
+  | "Focus"
+  | "Selected";
+
+/**
+ * Type helper for case-insensitive input state prop
+ */
+export type InputStateValue =
+  | "default"
+  | "active"
+  | "hover"
+  | "focus"
+  | "Default"
+  | "Active"
+  | "Hover"
+  | "Focus";
+
+/**
+ * Normalize button variant prop values
+ */
+export function normalizeVariant(
+  value: string | undefined,
+  defaultValue: "filled" = "filled"
+): "filled" | "filled-inverse" | "outline" | "outline-inverse" | "ghost" | "ghost-inverse" | "danger" | "danger-inverse" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = [
+    "filled",
+    "filled-inverse",
+    "outline",
+    "outline-inverse",
+    "ghost",
+    "ghost-inverse",
+    "danger",
+    "danger-inverse",
+  ];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize button size prop values
+ */
+export function normalizeSize(
+  value: string | undefined,
+  defaultValue: "xsmall" = "xsmall"
+): "xsmall" | "small" | "medium" | "large" | "xlarge" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const sizes = ["xsmall", "small", "medium", "large", "xlarge"];
+  if (sizes.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize alert status prop values
+ */
+export function normalizeAlertStatus(
+  value: string | undefined,
+  defaultValue: "default" = "default"
+): "default" | "positive" | "warning" | "danger" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const statuses = ["default", "positive", "warning", "danger"];
+  if (statuses.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize alert type prop values
+ */
+export function normalizeAlertType(
+  value: string | undefined,
+  defaultValue: "toast" = "toast"
+): "toast" | "banner" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const types = ["toast", "banner"];
+  if (types.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize tooltip position prop values
+ */
+export function normalizeTooltipPosition(
+  value: string | undefined,
+  defaultValue: "top" = "top"
+): "top" | "bottom" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const positions = ["top", "bottom"];
+  if (positions.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Type helper for case-insensitive variant prop
+ */
+export type VariantValue =
+  | "filled"
+  | "filled-inverse"
+  | "outline"
+  | "outline-inverse"
+  | "ghost"
+  | "ghost-inverse"
+  | "danger"
+  | "danger-inverse"
+  | "Filled"
+  | "Filled-Inverse"
+  | "Outline"
+  | "Outline-Inverse"
+  | "Ghost"
+  | "Ghost-Inverse"
+  | "Danger"
+  | "Danger-Inverse";
+
+/**
+ * Type helper for case-insensitive size prop
+ */
+export type SizeValue =
+  | "xsmall"
+  | "small"
+  | "medium"
+  | "large"
+  | "xlarge"
+  | "XSmall"
+  | "Small"
+  | "Medium"
+  | "Large"
+  | "XLarge";
+
+/**
+ * Normalize menu bar size prop values
+ */
+export function normalizeMenuBarSize(
+  value: string | undefined,
+  defaultValue: "default" = "default"
+): "xsmall" | "default" | "medium" | "large" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const sizes = ["xsmall", "default", "medium", "large"];
+  if (sizes.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize menu bar item variant prop values
+ */
+export function normalizeMenuBarItemVariant(
+  value: string | undefined,
+  defaultValue: "default" = "default"
+): "default" | "home" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = ["default", "home"];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize navigation item variant prop values
+ */
+export function normalizeNavigationItemVariant(
+  value: string | undefined,
+  defaultValue: "default" = "default"
+): "default" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  if (normalized === "default") {
+    return "default";
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize navigation item size prop values
+ */
+export function normalizeNavigationItemSize(
+  value: string | undefined,
+  defaultValue: "default" = "default"
+): "default" | "xsmall" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const sizes = ["default", "xsmall"];
+  if (sizes.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize content lockup variant prop values
+ */
+export function normalizeContentLockupVariant(
+  value: string | undefined,
+  defaultValue: "hero" = "hero"
+): "hero" | "feature" | "learn" | "ask" | "ask-inverse" | "modal" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = ["hero", "feature", "learn", "ask", "ask-inverse", "modal"];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize alignment prop values
+ */
+export function normalizeAlignment(
+  value: string | undefined,
+  defaultValue: "center" = "center"
+): "center" | "left" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const alignments = ["center", "left"];
+  if (alignments.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize content container size prop values
+ */
+export function normalizeContentContainerSize(
+  value: string | undefined,
+  defaultValue: "responsive" = "responsive"
+): "xs" | "responsive" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const sizes = ["xs", "responsive"];
+  if (sizes.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize content thumbnail variant prop values
+ */
+export function normalizeContentThumbnailVariant(
+  value: string | undefined,
+  defaultValue: "vertical" = "vertical"
+): "vertical" | "horizontal" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = ["vertical", "horizontal"];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize section header variant prop values
+ */
+export function normalizeSectionHeaderVariant(
+  value: string | undefined,
+  defaultValue: "default" = "default"
+): "default" | "multi-line" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = ["default", "multi-line"];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize quote block variant prop values
+ */
+export function normalizeQuoteBlockVariant(
+  value: string | undefined,
+  defaultValue: "standard" = "standard"
+): "compact" | "standard" | "extended" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = ["compact", "standard", "extended"];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize number card size prop values (already PascalCase in codebase, supports both)
+ */
+export function normalizeNumberCardSize(
+  value: string | undefined,
+  defaultValue: "Medium" = "Medium"
+): "Small" | "Medium" | "Large" | "XLarge" {
+  if (!value) return defaultValue;
+  // Check if already PascalCase
+  if (value === "Small" || value === "Medium" || value === "Large" || value === "XLarge") {
+    return value;
+  }
+  // Normalize lowercase to PascalCase
+  const normalized = value.toLowerCase();
+  if (normalized === "small") return "Small";
+  if (normalized === "medium") return "Medium";
+  if (normalized === "large") return "Large";
+  if (normalized === "xlarge") return "XLarge";
+  return defaultValue;
+}
+
+/**
+ * Normalize ask organizer variant prop values
+ */
+export function normalizeAskOrganizerVariant(
+  value: string | undefined,
+  defaultValue: "centered" = "centered"
+): "centered" | "left-aligned" | "compact" | "inverse" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = ["centered", "left-aligned", "compact", "inverse"];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize context menu item size prop values
+ */
+export function normalizeContextMenuItemSize(
+  value: string | undefined,
+  defaultValue: "medium" = "medium"
+): "small" | "medium" | "large" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const sizes = ["small", "medium", "large"];
+  if (sizes.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize image placeholder color prop values
+ */
+export function normalizeImagePlaceholderColor(
+  value: string | undefined,
+  defaultValue: "blue" = "blue"
+): "blue" | "green" | "purple" | "red" | "orange" | "teal" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const colors = ["blue", "green", "purple", "red", "orange", "teal"];
+  if (colors.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize toggle group position prop values
+ */
+export function normalizeToggleGroupPosition(
+  value: string | undefined,
+  defaultValue: "left" = "left"
+): "left" | "middle" | "right" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const positions = ["left", "middle", "right"];
+  if (positions.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize label variant prop values
+ */
+export function normalizeLabelVariant(
+  value: string | undefined,
+  defaultValue: "default" = "default"
+): "default" | "horizontal" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const variants = ["default", "horizontal"];
+  if (variants.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
+
+/**
+ * Normalize small/medium/large size prop values (for SelectInput, TextArea, etc.)
+ */
+export function normalizeSmallMediumLargeSize(
+  value: string | undefined,
+  defaultValue: "medium" = "medium"
+): "small" | "medium" | "large" {
+  if (!value) return defaultValue;
+  const normalized = value.toLowerCase();
+  const sizes = ["small", "medium", "large"];
+  if (sizes.includes(normalized)) {
+    return normalized as typeof defaultValue;
+  }
+  return defaultValue;
+}
diff --git a/stories/Checkbox.stories.js b/stories/Checkbox.stories.js
index 0ef1c4b..fc81d8e 100644
--- a/stories/Checkbox.stories.js
+++ b/stories/Checkbox.stories.js
@@ -46,13 +46,13 @@ export default {
     },
     mode: {
       control: "select",
-      options: ["standard", "inverse"],
-      description: "Visual mode of the checkbox",
+      options: ["standard", "inverse", "Standard", "Inverse"],
+      description: "Visual mode of the checkbox (case-insensitive: accepts both lowercase and PascalCase)",
     },
     state: {
       control: "select",
-      options: ["default", "hover", "focus"],
-      description: "Interaction state for static display",
+      options: ["default", "hover", "focus", "Default", "Hover", "Focus"],
+      description: "Interaction state for static display (case-insensitive: accepts both lowercase and PascalCase)",
     },
     disabled: {
       control: "boolean",
@@ -206,3 +206,53 @@ export const AllModes = () => {
     </div>
   );
 };
+
+// Test PascalCase props from Figma
+export const FigmaPascalCase = () => {
+  const [standardChecked, setStandardChecked] = React.useState(false);
+  const [inverseChecked, setInverseChecked] = React.useState(false);
+
+  return (
+    <div className="space-y-6">
+      <div>
+        <h3 className="text-lg font-semibold mb-4 text-white">Figma PascalCase Props (Standard/Inverse)</h3>
+        <p className="text-sm text-gray-400 mb-4">
+          These components accept both PascalCase (from Figma) and lowercase (from codebase) prop values.
+        </p>
+        <div className="space-y-4">
+          <Checkbox
+            label="Standard Mode (PascalCase)"
+            checked={standardChecked}
+            mode="Standard"
+            state="Default"
+            onChange={({ checked }) => setStandardChecked(checked)}
+          />
+          <Checkbox
+            label="Inverse Mode (PascalCase)"
+            checked={inverseChecked}
+            mode="Inverse"
+            state="Default"
+            onChange={({ checked }) => setInverseChecked(checked)}
+          />
+        </div>
+      </div>
+      <div>
+        <h3 className="text-lg font-semibold mb-4 text-white">Mixed Case (backward compatibility)</h3>
+        <div className="space-y-4">
+          <Checkbox
+            label="Standard mode (lowercase) - still works"
+            checked={false}
+            mode="standard"
+            state="default"
+          />
+          <Checkbox
+            label="Inverse Mode (mixed) - still works"
+            checked={false}
+            mode="inverse"
+            state="Default"
+          />
+        </div>
+      </div>
+    </div>
+  );
+};
diff --git a/stories/RadioButton.stories.js b/stories/RadioButton.stories.js
index 40d0921..1d3f286 100644
--- a/stories/RadioButton.stories.js
+++ b/stories/RadioButton.stories.js
@@ -21,13 +21,13 @@ export default {
     },
     mode: {
       control: "select",
-      options: ["standard", "inverse"],
-      description: "Visual mode of the radio button",
+      options: ["standard", "inverse", "Standard", "Inverse"],
+      description: "Visual mode of the radio button (case-insensitive: accepts both lowercase and PascalCase)",
     },
     state: {
       control: "select",
-      options: ["default", "hover", "focus"],
-      description: "Interaction state for static display",
+      options: ["default", "hover", "focus", "selected", "Default", "Hover", "Focus", "Selected"],
+      description: "Interaction state for static display (case-insensitive: accepts both lowercase and PascalCase)",
     },
     disabled: {
       control: "boolean",
@@ -247,3 +247,53 @@ export const InverseAllStates = () => {
     </div>
   );
 };
+
+// Test PascalCase props from Figma
+export const FigmaPascalCase = () => {
+  const [standardChecked, setStandardChecked] = React.useState(false);
+  const [inverseChecked, setInverseChecked] = React.useState(false);
+
+  return (
+    <div className="space-y-6">
+      <div>
+        <h3 className="text-lg font-semibold mb-4 text-white">Figma PascalCase Props (Standard/Inverse)</h3>
+        <p className="text-sm text-gray-400 mb-4">
+          These components accept both PascalCase (from Figma) and lowercase (from codebase) prop values.
+        </p>
+        <div className="space-y-4">
+          <RadioButton
+            label="Standard Mode (PascalCase)"
+            checked={standardChecked}
+            mode="Standard"
+            state="Default"
+            onChange={({ checked }) => setStandardChecked(checked)}
+          />
+          <RadioButton
+            label="Inverse Mode (PascalCase)"
+            checked={inverseChecked}
+            mode="Inverse"
+            state="Default"
+            onChange={({ checked }) => setInverseChecked(checked)}
+          />
+        </div>
+      </div>
+      <div>
+        <h3 className="text-lg font-semibold mb-4 text-white">Mixed Case (backward compatibility)</h3>
+        <div className="space-y-4">
+          <RadioButton
+            label="Standard mode (lowercase) - still works"
+            checked={false}
+            mode="standard"
+            state="default"
+          />
+          <RadioButton
+            label="Inverse Mode (mixed) - still works"
+            checked={false}
+            mode="inverse"
+            state="Default"
+          />
+        </div>
+      </div>
+    </div>
+  );
+};
diff --git a/tests/unit/ContentContainer.test.jsx b/tests/unit/ContentContainer.test.jsx
index 4f4c689..af10a80 100644
--- a/tests/unit/ContentContainer.test.jsx
+++ b/tests/unit/ContentContainer.test.jsx
@@ -85,14 +85,14 @@ describe("ContentContainer", () => {
   });
 
   it("applies correct width when specified", () => {
-    render(<ContentContainer post={mockPost} width="300px" size="sm" />);
+    render(<ContentContainer post={mockPost} width="300px" size="xs" />);
 
     const container = document.querySelector("div[class*='relative z-20']");
     expect(container).toHaveStyle("width: 300px");
   });
 
   it("applies default width when not specified", () => {
-    render(<ContentContainer post={mockPost} size="sm" />);
+    render(<ContentContainer post={mockPost} size="xs" />);
 
     const container = document.querySelector("div[class*='relative z-20']");
     expect(container).toHaveStyle("width: 200px");
@@ -183,8 +183,8 @@ describe("ContentContainer", () => {
     expect(screen.getByText("Incomplete Post")).toBeInTheDocument();
   });
 
-  it("applies correct responsive sizing for sm breakpoint", () => {
-    render(<ContentContainer post={mockPost} size="sm" />);
+  it("applies correct responsive sizing for xs breakpoint", () => {
+    render(<ContentContainer post={mockPost} size="xs" />);
 
     const icon = screen.getByAltText("Icon for Test Article Title");
     expect(icon).toHaveClass("w-[60px]", "h-[30px]");
@@ -196,8 +196,8 @@ describe("ContentContainer", () => {
     expect(description).toHaveClass("text-[12px]", "leading-[16px]");
   });
 
-  it("applies correct responsive sizing for md breakpoint", () => {
-    render(<ContentContainer post={mockPost} size="md" />);
+  it("applies correct responsive sizing for responsive breakpoint", () => {
+    render(<ContentContainer post={mockPost} size="responsive" />);
 
     const icon = screen.getByAltText("Icon for Test Article Title");
     expect(icon).toHaveClass("w-[60px]", "h-[30px]");
diff --git a/tests/unit/NumberCard.test.jsx b/tests/unit/NumberCard.test.jsx
index 69cd9c9..aefb1cb 100644
--- a/tests/unit/NumberCard.test.jsx
+++ b/tests/unit/NumberCard.test.jsx
@@ -39,7 +39,7 @@ describe("NumberCard Component", () => {
     const card = screen
       .getByText("Test Card Text")
       .closest("div").parentElement;
-    expect(card).toHaveClass("flex", "flex-col", "sm:flex-row", "lg:flex-col");
+    expect(card).toHaveClass("flex", "flex-col", "sm:flex-row", "sm:items-center", "lg:flex-col", "lg:items-start", "lg:justify-end", "lg:relative");
   });
 
   it("applies proper responsive spacing when size is not specified", () => {
@@ -66,7 +66,7 @@ describe("NumberCard Component", () => {
     const card = screen
       .getByText("Test Card Text")
       .closest("div").parentElement;
-    expect(card).toHaveClass("lg:h-[238px]");
+    expect(card).toHaveClass("lg:h-[238px]", "lg:relative");
   });
 
   it("applies proper background and shadow", () => {
@@ -128,8 +128,11 @@ describe("NumberCard Component", () => {
     expect(textElement).toHaveClass(
       "text-[24px]",
       "sm:text-[24px]",
+      "sm:leading-[24px]",
       "lg:text-[24px]",
+      "lg:leading-[24px]",
       "xl:text-[32px]",
+      "xl:leading-[32px]",
     );
   });
 
@@ -156,7 +159,7 @@ describe("NumberCard Component", () => {
       .closest("div").parentElement;
 
     // Mobile first approach
-    expect(card).toHaveClass("flex-col", "gap-4", "p-5");
+    expect(card).toHaveClass("flex", "flex-col", "gap-4", "p-5");
 
     // Small breakpoint
     expect(card).toHaveClass(
@@ -172,7 +175,9 @@ describe("NumberCard Component", () => {
       "lg:gap-[22px]",
       "lg:p-8",
       "lg:items-start",
+      "lg:justify-end",
       "lg:relative",
+      "lg:h-[238px]",
     );
   });