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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Immersive 3D Portfolio</title>
    <style>

        /* CSS STYLING */

        body {

            margin: 0;

            overflow-x: hidden;

            background-color: #0d0d0d;

            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

            color: white;

        }



        canvas {

            position: fixed;

            top: 0;

            left: 0;

            z-index: -1; /* Puts the 3D canvas behind the text */

        }



        /* UI Overlay */

        main {

            position: relative;

            z-index: 1;

            padding: 2rem;

            max-width: 1200px;

            margin: 0 auto;

        }



        nav {

            display: flex;

            justify-content: space-between;

            align-items: center;

            padding: 20px 0;

        }



        .logo {

            font-size: 1.5rem;

            font-weight: bold;

            letter-spacing: 2px;

        }



        .hero {

            height: 100vh;

            display: flex;

            flex-direction: column;

            justify-content: center;

            align-items: flex-start;

        }



        h1 {

            font-size: 5rem;

            margin: 0;

            background: linear-gradient(45deg, #00f260, #0575e6);

            -webkit-background-clip: text;

            -webkit-text-fill-color: transparent;

            line-height: 1.1;

        }



        p.subtitle {

            font-size: 1.5rem;

            color: #ccc;

            margin-top: 10px;

            max-width: 600px;

        }



        .btn {

            margin-top: 30px;

            padding: 15px 35px;

            border: 1px solid white;

            color: white;

            text-decoration: none;

            font-weight: bold;

            transition: 0.3s;

            text-transform: uppercase;

            letter-spacing: 1px;

        }



        .btn:hover {

            background: white;

            color: #000;

        }



        /* Simple content section to show scrolling */

        .content-section {

            min-height: 100vh;

            display: flex;

            align-items: center;

        }

        

        h2 { font-size: 3rem; margin-bottom: 20px; }

    </style>
</head>
<body>

    <main>
        <nav>
            <div class="logo">PORTFOLIO</div>
            <div>
                <a href="work.html" style="color: white; text-decoration: none; margin-left: 20px;">Work</a>
                <a href="about.html" style="color: white; text-decoration: none; margin-left: 20px;">About</a>
                <a href="contact.html" style="color: white; text-decoration: none; margin-left: 20px;">Contact</a>
            </div>
        </nav>

        <section class="hero">
            <h1>SIMRANPREET KAUR </h1>
            <p class="subtitle">Building immersive digital experiences with code and creativity.</p>
            <a href="projects.html" class="btn">View Projects</a>
        </section>

        <section class="content-section">
            <div>
                <h2>Selected Work</h2>
                <p>Scroll down to see projects interacting with the 3D environment...</p>
            </div>
        </section>
    </main>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>

    <script>

        // JAVASCRIPT FOR 3D VISUALS



        // 1. Scene Setup

        const scene = new THREE.Scene();

        // Add a subtle fog for depth

        scene.fog = new THREE.FogExp2(0x0d0d0d, 0.002);



        const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);

        const renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });

        

        renderer.setSize(window.innerWidth, window.innerHeight);

        renderer.setPixelRatio(window.devicePixelRatio);

        document.body.appendChild(renderer.domElement);



        // 2. Create the Main Object (Torus Knot)

        const geometry = new THREE.TorusKnotGeometry(10, 3, 100, 16);

        // Wireframe material gives a "tech" look

        const material = new THREE.MeshBasicMaterial({ 

            color: 0x00f260, 

            wireframe: true,

            transparent: true,

            opacity: 0.3

        });

        const torusKnot = new THREE.Mesh(geometry, material);

        scene.add(torusKnot);



        // 3. Create Particles (Starfield effect)

        const particlesGeometry = new THREE.BufferGeometry();

        const particlesCount = 700;

        

        const posArray = new Float32Array(particlesCount * 3);

        

        for(let i = 0; i < particlesCount * 3; i++) {

            // Spread particles randomly

            posArray[i] = (Math.random() - 0.5) * 50; 

        }

        

        particlesGeometry.setAttribute('position', new THREE.BufferAttribute(posArray, 3));

        

        const particlesMaterial = new THREE.PointsMaterial({

            size: 0.05,

            color: 0xffffff,

        });

        

        const particlesMesh = new THREE.Points(particlesGeometry, particlesMaterial);

        scene.add(particlesMesh);



        // Position Camera

        camera.position.z = 30;



        // 4. Mouse Interaction

        let mouseX = 0;

        let mouseY = 0;



        document.addEventListener('mousemove', (event) => {

            mouseX = event.clientX;

            mouseY = event.clientY;

        });



        // 5. Animation Loop

        const clock = new THREE.Clock();



        function animate() {

            const elapsedTime = clock.getElapsedTime();



            // Rotate main object

            torusKnot.rotation.y = elapsedTime * 0.1;

            torusKnot.rotation.x = elapsedTime * 0.05;



            // Rotate particles slowly

            particlesMesh.rotation.y = -elapsedTime * 0.05;



            // Interactive movement based on mouse

            // We smoothly interpolate the rotation for a "fluid" feel

            particlesMesh.rotation.x += 0.0005 * (mouseY - window.innerHeight / 2) * 0.001;

            particlesMesh.rotation.y += 0.0005 * (mouseX - window.innerWidth / 2) * 0.001;



            renderer.render(scene, camera);

            requestAnimationFrame(animate);

        }



        animate();



        // 6. Handle Window Resize

        window.addEventListener('resize', () => {

            camera.aspect = window.innerWidth / window.innerHeight;

            camera.updateProjectionMatrix();

            renderer.setSize(window.innerWidth, window.innerHeight);

        });

    </script>
</body>
</html>