Developer-Toolbox/tool-25-CSS-Gradient-Generator.html at main · Aliriyaj007/Developer-Toolbox · GitHub

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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>Tool 25 - CSS Gradient Generator - Developer Toolbox</title>
    <link rel="stylesheet" href="assets/core.css">
    <style>
        .gradient-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-top: 2rem; }
        @media (min-width: 900px) { .gradient-grid { grid-template-columns: 1fr 1fr; } }

        .preview-box {
            width: 100%;
            height: 250px;
            border-radius: var(--radius-md);
            border: 2px solid var(--border-color);
            margin-bottom: 2rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            transition: background 0.3s ease;
        }

        .input-group { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
        .input-group label { font-weight: bold; color: var(--text-secondary); display: flex; justify-content: space-between; align-items: center; }

        .color-row {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
        }

        input[type="color"] {
            -webkit-appearance: none;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            background: none;
        }
        input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
        input[type="color"]::-webkit-color-swatch { border: 2px solid var(--border-color); border-radius: var(--radius-sm); }

        input[type="text"], input[type="number"] {
            font-family: var(--font-mono); font-size: 1.1rem; padding: 0.5rem;
            border: 1px solid var(--border-color); border-radius: var(--radius-sm);
            background: var(--bg-main); color: var(--text-primary); flex: 1;
        }

        input[type="range"] {
            width: 100%;
            margin-top: 0.5rem;
        }

        .code-output {
            padding: 1rem;
            background: rgba(var(--primary-color-rgb), 0.05);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-family: var(--font-mono);
            font-size: 1.1rem;
            color: var(--primary-color);
            word-break: break-all;
            position: relative;
        }
    </style>
</head>
<body class="theme-dark">
    <div class="tool-canvas-container" id="canvas-container"></div>
    <main class="main-content">
        <div class="container">
            <div class="tool-header">
                <div>
                    <a href="index.html" class="back-link">← Back to Toolbox</a>
                    <h1>25. CSS Gradient Generator</h1>
                </div>
                <div>
                    <select id="theme-select" aria-label="Select Theme">
                        <option value="dark">Dark Theme</option>
                        <option value="light">Light Theme</option>
                        <option value="solarized">Solarized</option>
                        <option value="neon">Neon Glow</option>
                        <option value="highcontrast">High Contrast</option>
                    </select>
                </div>
            </div>

            <div class="gradient-grid">
                <div class="glass-panel">
                    <h3>Controls</h3>

                    <div class="input-group mt-4">
                        <label for="angle-slider">Angle (<span id="angle-value">90</span>deg)</label>
                        <input type="range" id="angle-slider" min="0" max="360" value="90">
                    </div>

                    <h4>Color Stops</h4>

                    <div class="color-row">
                        <input type="color" id="color-1" value="#ff00cc">
                        <input type="text" id="hex-1" value="#ff00cc">
                        <input type="number" id="pos-1" min="0" max="100" value="0" style="max-width: 80px;">
                        <span>%</span>
                    </div>

                    <div class="color-row">
                        <input type="color" id="color-2" value="#333399">
                        <input type="text" id="hex-2" value="#333399">
                        <input type="number" id="pos-2" min="0" max="100" value="100" style="max-width: 80px;">
                        <span>%</span>
                    </div>

                    <button class="btn btn-primary" id="randomize-btn" style="width: 100%; margin-top: 1rem;">🎲 Randomize</button>
                </div>

                <div class="glass-panel">
                    <h3>Preview</h3>
                    <div class="preview-box mt-4" id="gradient-preview"></div>

                    <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;">
                        <h3>CSS Code</h3>
                        <button class="btn" id="copy-btn">Copy CSS</button>
                    </div>
                    <div class="code-output" id="css-output">
                        background: linear-gradient(90deg, #ff00cc 0%, #333399 100%);
                    </div>
                </div>
            </div>
        </div>
    </main>

    <footer class="global-footer">
        <div class="container">
            Made with ❤️ by <a href="https://github.com/Aliriyaj007" target="_blank">Aliriyaj007</a>
        </div>
    </footer>

    <script src="assets/core.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r134/three.min.js"></script>
    <script>
        document.addEventListener('DOMContentLoaded', () => {
            const angleSlider = document.getElementById('angle-slider');
            const angleVal = document.getElementById('angle-value');

            const color1 = document.getElementById('color-1');
            const hex1 = document.getElementById('hex-1');
            const pos1 = document.getElementById('pos-1');

            const color2 = document.getElementById('color-2');
            const hex2 = document.getElementById('hex-2');
            const pos2 = document.getElementById('pos-2');

            const preview = document.getElementById('gradient-preview');
            const cssOut = document.getElementById('css-output');
            const copyBtn = document.getElementById('copy-btn');
            const randBtn = document.getElementById('randomize-btn');

            const updateGradient = () => {
                const angle = angleSlider.value;
                angleVal.textContent = angle;

                // sync hex and color picker
                hex1.value = color1.value;
                hex2.value = color2.value;

                const cssStr = `linear-gradient(${angle}deg, ${color1.value} ${pos1.value}%, ${color2.value} ${pos2.value}%)`;

                preview.style.background = cssStr;
                cssOut.textContent = `background: ${cssStr};`;

                if(window.updateConeColor) {
                    window.updateConeColor(color1.value, color2.value);
                }
            };

            // Sync from text back to color picker
            const updateFromHex = (hexEl, colorEl) => {
                if(/^#[0-9A-F]{6}$/i.test(hexEl.value)) {
                    colorEl.value = hexEl.value;
                    updateGradient();
                }
            };

            hex1.addEventListener('input', () => updateFromHex(hex1, color1));
            hex2.addEventListener('input', () => updateFromHex(hex2, color2));

            const inputs = [angleSlider, color1, color2, pos1, pos2];
            inputs.forEach(el => el.addEventListener('input', updateGradient));

            randBtn.addEventListener('click', () => {
                const rColor = () => '#' + Math.floor(Math.random()*16777215).toString(16).padStart(6, '0');
                color1.value = rColor();
                color2.value = rColor();
                angleSlider.value = Math.floor(Math.random() * 360);
                updateGradient();
            });

            copyBtn.addEventListener('click', () => {
                navigator.clipboard.writeText(cssOut.textContent);
                const og = copyBtn.textContent;
                copyBtn.textContent = "Copied!";
                setTimeout(() => copyBtn.textContent = og, 1500);
            });

            // Initial render
            updateGradient();
        });

        // Three.js 3D Visualization - Color Cone Extrusion
        let scene, camera, renderer, cone;

        function init3D() {
            const container = document.getElementById('canvas-container');
            if(!container || !window.THREE) return;

            scene = new THREE.Scene();
            camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 100);
            camera.position.set(-6, 4, 10);
            camera.lookAt(0, 0, 0);

            renderer = new THREE.WebGLRenderer({ alpha: true, antialias: true });
            renderer.setSize(window.innerWidth, window.innerHeight);
            container.appendChild(renderer.domElement);

            const ambientLight = new THREE.AmbientLight(0xffffff, 0.8);
            scene.add(ambientLight);

            const dirLight = new THREE.DirectionalLight(0xffffff, 0.5);
            dirLight.position.set(5, 10, 5);
            scene.add(dirLight);

            // Create Cone Geometry
            const geo = new THREE.ConeGeometry(2.5, 5, 32, 1, false);
            const count = geo.attributes.position.count;
            const colors = new Float32Array(count * 3);

            // Initial rainbow gradient coloring
            const colorObj = new THREE.Color();
            for (let i = 0; i < count; i++) {
                const x = geo.attributes.position.getX(i);
                const z = geo.attributes.position.getZ(i);
                const y = geo.attributes.position.getY(i);

                const angle = Math.atan2(x, z);
                const hue = (angle / (Math.PI * 2)) + 0.5;

                // Tip is white
                if(y > 2.4) {
                    colorObj.setHSL(0, 0, 1);
                } else {
                    colorObj.setHSL(hue, 1, 0.5);
                }

                colors[i * 3] = colorObj.r;
                colors[i * 3 + 1] = colorObj.g;
                colors[i * 3 + 2] = colorObj.b;
            }

            geo.setAttribute('color', new THREE.BufferAttribute(colors, 3));

            const mat = new THREE.MeshPhongMaterial({
                vertexColors: true,
                shininess: 60,
                side: THREE.DoubleSide
            });

            cone = new THREE.Mesh(geo, mat);
            cone.position.set(3, 0, 0);
            cone.rotation.x = 0.2;
            scene.add(cone);

            window.addEventListener('resize', () => {
                camera.aspect = window.innerWidth / window.innerHeight;
                camera.updateProjectionMatrix();
                renderer.setSize(window.innerWidth, window.innerHeight);
            });

            animate();
        }

        window.updateConeColor = (col1, col2) => {
            if(!cone) return;
            const geo = cone.geometry;
            const colors = geo.attributes.color.array;
            const count = geo.attributes.position.count;

            const c1 = new THREE.Color(col1);
            const c2 = new THREE.Color(col2);

            for (let i = 0; i < count; i++) {
                const y = geo.attributes.position.getY(i);
                // y goes from -2.5 to 2.5
                const t = (y + 2.5) / 5.0; // 0 to 1

                const r = THREE.MathUtils.lerp(c1.r, c2.r, t);
                const g = THREE.MathUtils.lerp(c1.g, c2.g, t);
                const b = THREE.MathUtils.lerp(c1.b, c2.b, t);

                colors[i * 3] = r;
                colors[i * 3 + 1] = g;
                colors[i * 3 + 2] = b;
            }
            geo.attributes.color.needsUpdate = true;
        };

        function animate() {
            requestAnimationFrame(animate);

            if(cone) {
                cone.rotation.y += 0.01;
                // Subtle floating
                cone.position.y = Math.sin(Date.now() * 0.002) * 0.2;
            }

            renderer.render(scene, camera);
        }

        document.addEventListener('DOMContentLoaded', init3D);
    </script>
</body>
</html>