diff --git a/src/theme/NotFound/Content/index.tsx b/src/theme/NotFound/Content/index.tsx
new file mode 100644
index 00000000..c8667629
--- /dev/null
+++ b/src/theme/NotFound/Content/index.tsx
@@ -0,0 +1,131 @@
+import React, { type ReactNode, useState } from "react";
+import clsx from "clsx";
+import type { Props } from "@theme/NotFound/Content";
+import Heading from "@theme/Heading";
+
+// --- Style Definitions ---
+
+// The main "card" background, from your footer's gradient
+const wrapperStyle: React.CSSProperties = {
+  background:
+    "linear-gradient(135deg, #0f0f23 0%, #1a1a2e 25%, #16213e 50%, #0f3460 75%, #533483 100%)",
+  borderRadius: "16px",
+  padding: "4rem 2rem", // More vertical padding
+  border: "1px solid rgba(255, 255, 255, 0.1)",
+  boxShadow: "0 16px 40px rgba(0, 0, 0, 0.3)",
+  position: "relative",
+  overflow: "hidden",
+  textAlign: "center",
+};
+
+// The giant "404" watermark
+const big404Style: React.CSSProperties = {
+  position: "absolute",
+  fontSize: "20rem",
+  fontWeight: 700,
+  lineHeight: 1,
+  color: "#A740F2", // Electric purple
+  opacity: 0.05, // Make it very subtle on the dark background
+  top: "-2rem",
+  left: 0,
+  right: 0,
+  zIndex: 1,
+  userSelect: "none",
+};
+
+// Gradient text for the main title, like in your footer
+const titleStyle: React.CSSProperties = {
+  background: "linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%)",
+  WebkitBackgroundClip: "text",
+  WebkitTextFillColor: "transparent",
+  backgroundClip: "text",
+  color: "transparent", // Fallback
+  marginBottom: "1rem",
+  position: "relative",
+  zIndex: 2, // Above the watermark
+};
+
+// Style for the paragraph text
+const textStyle: React.CSSProperties = {
+  color: "#cbd5e1", // Light, soft gray
+  fontSize: "1.25rem",
+  fontWeight: 300,
+  position: "relative",
+  zIndex: 2,
+};
+
+// Button style from your footer's newsletter button
+const buttonStyle: React.CSSProperties = {
+  background: "linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%)",
+  color: "#ffffff",
+  borderColor: "transparent",
+  fontWeight: 700,
+  textTransform: "uppercase",
+  letterSpacing: "0.5px",
+  padding: "14px 28px",
+  borderRadius: "12px",
+  boxShadow:
+    "0 8px 24px rgba(102, 126, 234, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2)",
+  transition: "all 0.3s ease",
+  position: "relative",
+  zIndex: 2,
+  cursor: "pointer",
+  textDecoration: "none",
+};
+
+// Button hover effect, also from your CSS
+const buttonHoverStyle: React.CSSProperties = {
+  transform: "translateY(-2px) scale(1.02)",
+  boxShadow:
+    "0 12px 32px rgba(102, 126, 234, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.3)",
+};
+
+// --- The Component ---
+
+export default function NotFoundContent({ className }: Props): ReactNode {
+  // We use state to toggle the hover style for the button
+  const [isHovered, setIsHovered] = useState(false);
+
+  return (
+    <main className={clsx("margin-vert--xl container", className)}>
+      <div className="row">
+        {/* We apply the card style to the column */}
+        <div className={clsx("col col--8 col--offset-2")} style={wrapperStyle}>
+          <div style={big404Style}>404</div>
+
+          <Heading as="h1" className="hero__title" style={titleStyle}>
+            Page Not Found
+          </Heading>
+
+          <p style={textStyle}>Looks like you've ventured into the unknown.</p>
+          <p
+            style={{
+              ...textStyle,
+              fontSize: "1rem",
+              fontWeight: 400,
+              opacity: 0.8,
+            }}
+          >
+            Let's get you back to safety.
+          </p>
+
+          <div style={{ marginTop: "2rem" }}>
+            <a
+              href="/"
+              className="button" // Remove button--primary, we are fully custom
+              style={
+                isHovered
+                  ? { ...buttonStyle, ...buttonHoverStyle }
+                  : buttonStyle
+              }
+              onMouseEnter={() => setIsHovered(true)}
+              onMouseLeave={() => setIsHovered(false)}
+            >
+              Back to RecodeHive
+            </a>
+          </div>
+        </div>
+      </div>
+    </main>
+  );
+}
diff --git a/src/theme/NotFound/index.tsx b/src/theme/NotFound/index.tsx
new file mode 100644
index 00000000..f49a8ec7
--- /dev/null
+++ b/src/theme/NotFound/index.tsx
@@ -0,0 +1,14 @@
+import React, { type ReactNode } from "react";
+import NotFound from "@theme-original/NotFound";
+import type NotFoundType from "@theme/NotFound";
+import type { WrapperProps } from "@docusaurus/types";
+
+type Props = WrapperProps<typeof NotFoundType>;
+
+export default function NotFoundWrapper(props: Props): ReactNode {
+  return (
+    <>
+      <NotFound {...props} />
+    </>
+  );
+}