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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>Interactive 3D Solar System</title>
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Exo+2:wght@300;400;600&display=swap');
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --primary: #00d4ff;
            --secondary: #ff6b35;
            --accent: #a855f7;
            --dark: #0a0a1a;
            --light: #e0e0ff;
        }
        
        body {
            font-family: 'Exo 2', sans-serif;
            background: var(--dark);
            color: var(--light);
            overflow: hidden;
            height: 100vh;
        }
        
        #canvas-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
        
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: linear-gradient(180deg, rgba(10,10,26,0.9) 0%, transparent 100%);
        }
        
        .logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-transform: uppercase;
            letter-spacing: 3px;
        }
        
        .logo span {
            font-size: 0.8rem;
            color: var(--light);
            -webkit-text-fill-color: var(--light);
            opacity: 0.7;
        }
        
        .header a {
            color: var(--primary);
            text-decoration: none;
            font-size: 0.9rem;
            padding: 0.5rem 1rem;
            border: 1px solid var(--primary);
            border-radius: 20px;
            transition: all 0.3s ease;
        }
        
        .header a:hover {
            background: var(--primary);
            color: var(--dark);
        }
        
        .controls {
            position: fixed;
            bottom: 2rem;
            left: 2rem;
            z-index: 100;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        
        .control-btn {
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 0.8rem 1.2rem;
            border-radius: 8px;
            cursor: pointer;
            font-family: 'Orbitron', sans-serif;
            font-size: 0.8rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }
        
        .control-btn:hover {
            background: var(--primary);
            color: var(--dark);
            transform: translateX(5px);
        }
        
        .control-btn.active {
            background: var(--primary);
            color: var(--dark);
        }
        
        .planet-info {
            position: fixed;
            top: 50%;
            right: -400px;
            transform: translateY(-50%);
            width: 350px;
            background: rgba(10, 10, 26, 0.95);
            border: 1px solid var(--primary);
            border-radius: 20px;
            padding: 2rem;
            z-index: 100;
            transition: right 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            backdrop-filter: blur(20px);
            box-shadow: 0 0 50px rgba(0, 212, 255, 0.2);
        }
        
        .planet-info.visible {
            right: 2rem;
        }
        
        .planet-info h2 {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .planet-info .subtitle {
            color: var(--secondary);
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        
        .planet-info .stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .stat {
            background: rgba(0, 212, 255, 0.05);
            padding: 1rem;
            border-radius: 10px;
            text-align: center;
        }
        
        .stat-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            opacity: 0.7;
            margin-bottom: 0.3rem;
        }
        
        .stat-value {
            font-family: 'Orbitron', sans-serif;
            font-size: 1rem;
            color: var(--primary);
        }
        
        .planet-info .description {
            font-size: 0.9rem;
            line-height: 1.6;
            opacity: 0.8;
            margin-bottom: 1.5rem;
        }
        
        .close-btn {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0.7;
            transition: opacity 0.3s;
        }
        
        .close-btn:hover {
            opacity: 1;
        }
        
        .legend {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 100;
            background: rgba(10, 10, 26, 0.9);
            border: 1px solid rgba(0, 212, 255, 0.3);
            border-radius: 15px;
            padding: 1.5rem;
            backdrop-filter: blur(10px);
        }
        
        .legend h3 {
            font-family: 'Orbitron', sans-serif;
            font-size: 0.9rem;
            margin-bottom: 1rem;
            color: var(--primary);
        }
        
        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
            font-size: 0.8rem;
        }
        
        .legend-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }
        
        .loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--dark);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            transition: opacity 0.5s ease;
        }
        
        .loading.hidden {
            opacity: 0;
            pointer-events: none;
        }
        
        .loading-spinner {
            width: 80px;
            height: 80px;
            border: 3px solid rgba(0, 212, 255, 0.1);
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        .loading-text {
            margin-top: 1.5rem;
            font-family: 'Orbitron', sans-serif;
            color: var(--primary);
            letter-spacing: 3px;
        }
        
        .speed-control {
            position: fixed;
            top: 50%;
            left: 2rem;
            transform: translateY(-50%);
            z-index: 100;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        
        .speed-label {
            font-family: 'Orbitron', sans-serif;
            font-size: 0.7rem;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        
        .speed-slider {
            -webkit-appearance: none;
            width: 150px;
            height: 6px;
            background: rgba(0, 212, 255, 0.2);
            border-radius: 3px;
            outline: none;
        }
        
        .speed-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 18px;
            height: 18px;
            background: var(--primary);
            border-radius: 50%;
            cursor: pointer;
            box-shadow: 0 0 10px var(--primary);
        }
        
        @media (max-width: 768px) {
            .planet-info {
                width: 100%;
                right: -100%;
                top: auto;
                bottom: 0;
                transform: none;
                border-radius: 20px 20px 0 0;
            }
            
            .planet-info.visible {
                right: 0;
            }
            
            .legend {
                display: none;
            }
            
            .controls {
                bottom: 1rem;
                left: 1rem;
            }
            
            .speed-control {
                left: 1rem;
                top: auto;
                bottom: 8rem;
            }
        }
    </style>
</head>
<body>
    <div class="loading" id="loading">
        <div class="loading-spinner"></div>
        <div class="loading-text">INITIALIZING SOLAR SYSTEM</div>
    </div>
    
    <div id="canvas-container"></div>
    
    <header class="header">
        <div class="logo">Solar System <span>3D Model</span></div>
        <a href="https://huggingface.co/spaces/akhaliq/anycoder" target="_blank">Built with anycoder</a>
    </header>
    
    <div class="controls">
        <button class="control-btn active" id="toggle-orbits">Toggle Orbits</button>
        <button class="control-btn" id="toggle-labels">Toggle Labels</button>
        <button class="control-btn" id="reset-view">Reset View</button>
    </div>
    
    <div class="speed-control">
        <span class="speed-label">Simulation Speed</span>
        <input type="range" class="speed-slider" id="speed-slider" min="0" max="100" value="30">
    </div>
    
    <div class="planet-info" id="planet-info">
        <button class="close-btn" onclick="closePlanetInfo()">&times;</button>
        <h2 id="info-name">Earth</h2>
        <div class="subtitle" id="info-type">Terrestrial Planet</div>
        <div class="stats">
            <div class="stat">
                <div class="stat-label">Diameter</div>
                <div class="stat-value" id="info-diameter">12,742 km</div>
            </div>
            <div class="stat">
                <div class="stat-label">Distance from Sun</div>
                <div class="stat-value" id="info-distance">149.6M km</div>
            </div>
            <div class="stat">
                <div class="stat-label">Orbital Period</div>
                <div class="stat-value" id="info-period">365.25 days</div>
            </div>
            <div class="stat">
                <div class="stat-label">Moons</div>
                <div class="stat-value" id="info-moons">1</div>
            </div>
        </div>
        <p class="description" id="info-description">
            The third planet from the Sun and the only astronomical object known to harbor life.
        </p>
    </div>
    
    <div class="legend">
        <h3>Planets</h3>
        <div class="legend-item"><div class="legend-dot" style="background: #ffd700;"></div> Sun</div>
        <div class="legend-item"><div class="legend-dot" style="background: #b5651d;"></div> Mercury</div>
        <div class="legend-item"><div class="legend-dot" style="background: #e6c47a;"></div> Venus</div>
        <div class="legend-item"><div class="legend-dot" style="background: #4a90d9;"></div> Earth</div>
        <div class="legend-item"><div class="legend-dot" style="background: #c1440e;"></div> Mars</div>
        <div class="legend-item"><div class="legend-dot" style="background: #d4a574;"></div> Jupiter</div>
        <div class="legend-item"><div class="legend-dot" style="background: #e8c47a;"></div> Saturn</div>
        <div class="legend-item"><div class="legend-dot" style="background: #4fd0e8;"></div> Uranus</div>
        <div class="legend-item"><div class="legend-dot" style="background: #4b70dd;"></div> Neptune</div>
    </div>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/controls/OrbitControls.js"></script>
    <script>
        // Planet data
        const planetData = {
            mercury: {
                name: 'Mercury',
                type: 'Terrestrial Planet',
                diameter: '4,879 km',
                distance: '57.9M km',
                period: '88 days',
                moons: '0',
                description: 'The smallest planet in our solar system and closest to the Sun. Mercury has a heavily cratered surface similar to Earth\'s Moon.',
                color: 0xb5651d,
                size: 0.4,
                orbitRadius: 10,
                orbitSpeed: 4.15
            },
            venus: {
                name: 'Venus',
                type: 'Terrestrial Planet',
                diameter: '12,104 km',
                distance: '108.2M km',
                period: '225 days',
                moons: '0',
                description: 'The second planet from the Sun and Earth\'s closest neighbor. Venus has a thick, toxic atmosphere filled with carbon dioxide.',
                color: 0xe6c47a,
                size: 0.9,
                orbitRadius: 15,
                orbitSpeed: 1.62
            },
            earth: {
                name: 'Earth',
                type: 'Terrestrial Planet',
                diameter: '12,742 km',
                distance: '149.6M km',
                period: '365.25 days',
                moons: '1',
                description: 'The third planet from the Sun and the only astronomical object known to harbor life. About 71% of its surface is covered with water.',
                color: 0x4a90d9,
                size: 1,
                orbitRadius: 20,
                orbitSpeed: 1
            },
            mars: {
                name: 'Mars',
                type: 'Terrestrial Planet',
                diameter: '6,779 km',
                distance: '227.9M km',
                period: '687 days',
                moons: '2',
                description: 'The fourth planet from the Sun, often called the "Red Planet" due to iron oxide on its surface. Mars has the largest volcano in the solar system.',
                color: 0xc1440e,
                size: 0.5,
                orbitRadius: 25,
                orbitSpeed: 0.53
            },
            jupiter: {
                name: 'Jupiter',
                type: 'Gas Giant',
                diameter: '139,820 km',
                distance: '778.5M km',
                period: '11.86 years',
                moons: '79',
                description: 'The largest planet in our solar system. Jupiter is a gas giant with a mass more than twice that of all the other planets combined.',
                color: 0xd4a574,
                size: 3,
                orbitRadius: 35,
                orbitSpeed: 0.084
            },
            saturn: {
                name: 'Saturn',
                type: 'Gas Giant',
                diameter: '116,460 km',
                distance: '1.4B km',
                period: '29.46 years',
                moons: '82',
                description: 'The sixth planet from the Sun and famous for its beautiful ring system. Saturn is made mostly of hydrogen and helium.',
                color: 0xe8c47a,
                size: 2.5,
                orbitRadius: 45,
                orbitSpeed: 0.034
            },
            uranus: {
                name: 'Uranus',
                type: 'Ice Giant',
                diameter: '50,724 km',
                distance: '2.9B km',
                period: '84 years',
                moons: '27',
                description: 'The seventh planet from the Sun. Uranus has the coldest planetary atmosphere in the solar system and rotates on its side.',
                color: 0x4fd0e8,
                size: 1.8,
                orbitRadius: 55,
                orbitSpeed: 0.012
            },
            neptune: {
                name: 'Neptune',
                type: 'Ice Giant',
                diameter: '49,244 km',
                distance: '4.5B km',
                period: '164.8 years',
                moons: '14',
                description: 'The eighth and farthest known planet from the Sun. Neptune has the strongest winds in the solar system, reaching 2,100 km/h.',
                color: 0x4b70dd,
                size: 1.7,
                orbitRadius: 65,
                orbitSpeed: 0.006
            }
        };

        // Scene setup
        let scene, camera, renderer, controls;
        let planets = {};
        let orbits = {};
        let labels = {};
        let showOrbits = true;
        let showLabels = false;
        let simulationSpeed = 0.3;
        let sun;
        
        function init() {
            // Scene
            scene = new THREE.Scene();
            
            // Camera
            camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 0.1, 2000);
            camera.position.set(0, 80, 120);
            
            // Renderer
            renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });
            renderer.setSize(window.innerWidth, window.innerHeight);
            renderer.setPixelRatio(window.devicePixelRatio);
            renderer.toneMapping = THREE.ACESFilmicToneMapping;
            renderer.toneMappingExposure = 1;
            document.getElementById('canvas-container').appendChild(renderer.domElement);
            
            // Controls
            controls = new THREE.OrbitControls(camera, renderer.domElement);
            controls.enableDamping = true;
            controls.dampingFactor = 0.05;
            controls.minDistance = 20;
            controls.maxDistance = 500;
            
            // Create starfield
            createStarfield();
            
            // Create Sun
            createSun();
            
            // Create planets
            createPlanets();
            
            // Lighting
            const ambientLight = new THREE.AmbientLight(0x333333);
            scene.add(ambientLight);
            
            const sunLight = new THREE.PointLight(0xffffff, 2, 500);
            sunLight.position.set(0, 0, 0);
            scene.add(sunLight);
            
            // Event listeners
            window.addEventListener('resize', onWindowResize);
            renderer.domElement.addEventListener('click', onMouseClick);
            
            // Control buttons
            document.getElementById('toggle-orbits').addEventListener('click', toggleOrbits);
            document.getElementById('toggle-labels').addEventListener('click', toggleLabels);
            document.getElementById('reset-view').addEventListener('click', resetView);
            document.getElementById('speed-slider').addEventListener('input', (e) => {
                simulationSpeed = e.target.value / 100;
            });
            
            // Hide loading
            setTimeout(() => {
                document.getElementById('loading').classList.add('hidden');
            }, 1500);
            
            // Start animation
            animate();
        }
        
        function createStarfield() {
            const starsGeometry = new THREE.BufferGeometry();
            const starCount = 10000;
            const positions = new Float32Array(starCount * 3);
            const colors = new Float32Array(starCount * 3);
            
            for (let i = 0; i < starCount * 3; i += 3) {
                const radius = 500 + Math.random() * 500;
                const theta = Math.random() * Math.PI * 2;
                const phi = Math.acos(2 * Math.random() - 1);
                
                positions[i] = radius * Math.sin(phi) * Math.cos(theta);
                positions[i + 1] = radius * Math.sin(phi) * Math.sin(theta);
                positions[i + 2] = radius * Math.cos(phi);
                
                const color = new THREE.Color();
                color.setHSL(Math.random() * 0.2 + 0.5, 0.2, Math.random() * 0.5 + 0.5);
                colors[i] = color.r;
                colors[i + 1] = color.g;
                colors[i + 2] = color.b;
            }
            
            starsGeometry.setAttribute('position', new THREE.BufferAttribute(positions, 3));
            starsGeometry.setAttribute('color', new THREE.BufferAttribute(colors, 3));
            
            const starsMaterial = new THREE.PointsMaterial({
                size: 1.5,
                vertexColors: true,
                transparent: true,
                opacity: 0.8
            });
            
            const stars = new THREE.Points(starsGeometry, starsMaterial);
            scene.add(stars);
        }
        
        function createSun() {
            // Sun sphere
            const sunGeometry = new THREE.SphereGeometry(5, 64, 64);
            const sunMaterial = new THREE.MeshBasicMaterial({
                color: 0xffdd00,
                emissive: 0xffaa00,
                emissiveIntensity: 1
            });
            sun = new THREE.Mesh(sunGeometry, sunMaterial);
            scene.add(sun);
            
            // Sun glow
            const glowGeometry = new THREE.SphereGeometry(6, 32, 32);
            const glowMaterial = new THREE.MeshBasicMaterial({
                color: 0xff8800,
                transparent: true,
                opacity: 0.3,
                side: THREE.BackSide
            });
            const glow = new THREE.Mesh(glowGeometry, glowMaterial);
            scene.add(glow);
            
            // Outer glow
            const outerGlowGeometry = new THREE.SphereGeometry(8, 32, 32);
            const outerGlowMaterial = new THREE.MeshBasicMaterial({
                color: 0xff4400,
                transparent: true,
                opacity: 0.1,
                side: THREE.BackSide
            });
            const outerGlow = new THREE.Mesh(outerGlowGeometry, outerGlowMaterial);
            scene.add(outerGlow);
            
            // Create label
            createLabel('Sun', new THREE.Vector3(0, 8, 0), 0xffdd00);
        }
        
        function createPlanets() {
            const planetNames = Object.keys(planetData);
            
            planetNames.forEach((name, index) => {
                const data = planetData[name];
                const angle = (index / planetNames.length) * Math.PI * 2;
                
                // Create orbit
                const orbitGeometry = new THREE.RingGeometry(data.orbitRadius - 0.1, data.orbitRadius + 0.1, 128);
                const orbitMaterial = new THREE.MeshBasicMaterial({
                    color: 0x00d4ff,
                    transparent: true,
                    opacity: 0.15,
                    side: THREE.DoubleSide
                });
                const orbit = new THREE.Mesh(orbitGeometry, orbitMaterial);
                orbit.rotation.x = Math.PI / 2;
                orbit.userData = { type: 'orbit' };
                orbits[name] = orbit;
                scene.add(orbit);
                
                // Create planet group
                const planetGroup = new THREE.Group();
                planetGroup.userData = { 
                    type: 'planet', 
                    name: name,
                    orbitRadius: data.orbitRadius,
                    orbitSpeed: data.orbitSpeed,
                    angle: angle
                };
                
                // Planet sphere
                const planetGeometry = new THREE.SphereGeometry(data.size, 32, 32);
                const planetMaterial = new THREE.MeshStandardMaterial({
                    color: data.color,
                    roughness: 0.7,
                    metalness: 0.3
                });
                const planet = new THREE.Mesh(planetGeometry, planetMaterial);
                planet.userData = { type: 'planet', name: name };
                planetGroup.add(planet);
                
                // Position planet
                const x = Math.cos(angle) * data.orbitRadius;
                const z = Math.sin(angle) * data.orbitRadius;
                planetGroup.position.set(x, 0, z);
                
                planets[name] = planetGroup;
                scene.add(planetGroup);
                
                // Create label
                const labelY = data.size + 2;
                createLabel(data.name, new THREE.Vector3(x, labelY, z), data.color, name);
            });
            
            // Add rings for Saturn
            const saturnRingGeometry = new THREE.RingGeometry(3.5, 5, 64);
            const saturnRingMaterial = new THREE.MeshBasicMaterial({
                color: 0xc9a86c,
                transparent: true,
                opacity: 0.7,
                side: THREE.DoubleSide
            });
            const saturnRing = new THREE.Mesh(saturnRingGeometry, saturnRingMaterial);
            saturnRing.rotation.x = Math.PI / 2.5;
            planets.saturn.add(saturnRing);
        }
        
        function createLabel(text, position, color, planetName = null) {
            const canvas = document.createElement('canvas');
            const context = canvas.getContext('2d');
            canvas.width = 256;
            canvas.height = 64;
            
            context.fillStyle = 'rgba(0, 0, 0, 0)';
            context.fillRect(0, 0, canvas.width, canvas.height);
            
            context.font = 'bold 32px Orbitron';
            context.textAlign = 'center';
            context.fillStyle = '#' + color.toString(16).padStart(6, '0');
            context.fillText(text, 128, 40);
            
            const texture = new THREE.CanvasTexture(canvas);
            const spriteMaterial = new THREE.SpriteMaterial({ 
                map: texture, 
                transparent: true,
                opacity: 0.8
            });
            const sprite = new THREE.Sprite(spriteMaterial);
            sprite.position.copy(position);
            sprite.scale.set(15, 4, 1);
            
            if (planetName) {
                labels[planetName] = sprite;
                sprite.visible = showLabels;
            }
            
            scene.add(sprite);
        }
        
        function toggleOrbits() {
            showOrbits = !showOrbits;
            document.getElementById('toggle-orbits').classList.toggle('active');
            
            Object.values(orbits).forEach(orbit => {
                orbit.visible = showOrbits;
            });
        }
        
        function toggleLabels() {
            showLabels = !showLabels;
            document.getElementById('toggle-labels').classList.toggle('active');
            
            Object.values(labels).forEach(label => {
                label.visible = showLabels;
            });
        }
        
        function resetView() {
            camera.position.set(0, 80, 120);
            controls.reset();
        }
        
        function showPlanetInfo(name) {
            const data = planetData[name];
            if (!data) return;
            
            document.getElementById('info-name').textContent = data.name;
            document.getElementById('info-type').textContent = data.type;
            document.getElementById('info-diameter').textContent = data.diameter;
            document.getElementById('info-distance').textContent = data.distance;
            document.getElementById('info-period').textContent = data.period;
            document.getElementById('info-moons').textContent = data.moons;
            document.getElementById('info-description').textContent = data.description;
            
            document.getElementById('planet-info').classList.add('visible');
        }
        
        function closePlanetInfo() {
            document.getElementById('planet-info').classList.remove('visible');
        }
        
        function onMouseClick(event) {
            const mouse = new THREE.Vector2();
            mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
            mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
            
            const raycaster = new THREE.Raycaster();
            raycaster.setFromCamera(mouse, camera);
            
            const planetObjects = [];
            Object.values(planets).forEach(group => {
                group.children.forEach(child => {
                    if (child.userData.type === 'planet') {
                        planetObjects.push(child);
                    }
                });
            });
            
            const intersects = raycaster.intersectObjects(planetObjects);
            
            if (intersects.length > 0) {
                const planetName = intersects[0].object.userData.name;
                showPlanetInfo(planetName);
            }
        }
        
        function onWindowResize() {
            camera.aspect = window.innerWidth / window.innerHeight;
            camera.updateProjectionMatrix();
            renderer.setSize(window.innerWidth, window.innerHeight);
        }
        
        function animate() {
            requestAnimationFrame(animate);
            
            // Rotate Sun
            sun.rotation.y += 0.002;
            
            // Animate planets
            Object.values(planets).forEach(planetGroup => {
                const data = planetGroup.userData;
                data.angle += data.orbitSpeed * simulationSpeed * 0.01;
                
                const x = Math.cos(data.angle) * data.orbitRadius;
                const z = Math.sin(data.angle) * data.orbitRadius;
                
                planetGroup.position.set(x, 0, z);
                
                // Rotate planet
                planetGroup.children[0].rotation.y += 0.02;
                
                // Update label position
                const planetName = data.name;
                if (labels[planetName]) {
                    const planetData = planetData[planetName];
                    labels[planetName].position.set(x, planetData.size + 2, z);
                }
            });
            
            controls.update();
            renderer.render(scene, camera);
        }
        
        // Initialize
        init();
    </script>
</body>
</html>