feat(ui): enhanced 404 Not Found page UI

Author: KunjMaheshwari

frontend/package-lock.json

@@ -3,10 +3,116 @@ import { Link } from "react-router-dom";
 
 export default function NotFound() {
   return (
-    <div className="page not-found">
-      <h1>404 - Page Not Found</h1>
-      <p>The page you’re looking for doesn’t exist.</p>
-      <Link to="/">Go Back Home</Link>
+    <div style={styles.container}>
+      <div style={styles.illustrationBox}>
+        <div style={styles.circle}></div>
+        <h1 style={styles.title}>404</h1>
+      </div>
+
+      <div style={styles.contentBox}>
+        <h2 style={styles.subtitle}>Oops! You seem lost.</h2>
+        <p style={styles.description}>
+          The page you’re looking for doesn’t exist or may have been moved. Let’s get you back on track.
+        </p>
+        <Link to="/" style={styles.button}>
+          ⬅️ Return to Home
+        </Link>
+      </div>
+
+      <style>
+        {`
+          @keyframes float {
+            0% { transform: translateY(0px); }
+            50% { transform: translateY(-15px); }
+            100% { transform: translateY(0px); }
+          }
+
+          @keyframes fadeIn {
+            from { opacity: 0; transform: translateY(30px); }
+            to { opacity: 1; transform: translateY(0); }
+          }
+
+          a:hover {
+            background-color: #fff !important;
+            color: #ff416c !important;
+            transform: scale(1.05);
+          }
+        `}
+      </style>
     </div>
   );
 }
+
+const styles = {
+  container: {
+    display: "flex",
+    flexDirection: "column",
+    justifyContent: "center",
+    alignItems: "center",
+    height: "100vh",
+    background: "linear-gradient(135deg, #ff4b2b, #ff416c)",
+    color: "#fff",
+    fontFamily: "'Poppins', sans-serif",
+    overflow: "hidden",
+    textAlign: "center",
+    animation: "fadeIn 1s ease-in-out",
+    padding: "0 20px",
+  },
+  illustrationBox: {
+    position: "relative",
+    display: "flex",
+    justifyContent: "center",
+    alignItems: "center",
+    animation: "float 3s ease-in-out infinite",
+  },
+  circle: {
+    width: "200px",
+    height: "200px",
+    background: "rgba(255, 255, 255, 0.15)",
+    borderRadius: "50%",
+    position: "absolute",
+    top: 0,
+    left: 0,
+    right: 0,
+    margin: "auto",
+    filter: "blur(5px)",
+    zIndex: 0,
+  },
+  title: {
+    fontSize: "7rem",
+    fontWeight: "900",
+    zIndex: 2,
+    textShadow: "0 5px 20px rgba(0, 0, 0, 0.3)",
+  },
+  contentBox: {
+    marginTop: "30px",
+    maxWidth: "600px",
+    backgroundColor: "rgba(255, 255, 255, 0.15)",
+    borderRadius: "15px",
+    padding: "30px 40px",
+    boxShadow: "0 8px 25px rgba(0,0,0,0.3)",
+    backdropFilter: "blur(12px)",
+    animation: "fadeIn 1.5s ease-in-out",
+  },
+  subtitle: {
+    fontSize: "2.5rem",
+    fontWeight: "600",
+    marginBottom: "15px",
+  },
+  description: {
+    fontSize: "1.1rem",
+    marginBottom: "30px",
+    lineHeight: "1.6",
+  },
+  button: {
+    display: "inline-block",
+    padding: "14px 30px",
+    backgroundColor: "#ffebee",
+    color: "#ff416c",
+    borderRadius: "50px",
+    fontWeight: "600",
+    textDecoration: "none",
+    transition: "all 0.3s ease",
+    boxShadow: "0 4px 12px rgba(255, 255, 255, 0.3)",
+  },
+};