Random Gradient Generator

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Random Gradient Generator</title>
    <!-- Google Font -->
    <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap" rel="stylesheet">
    <!-- html2canvas Library for taking screenshots -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
    <!-- Stylesheet -->
    <style>
        /* Basic Reset */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Poppins", sans-serif;
        }

        body {
            height: 100vh;
            /* The gradient will be set by JavaScript */
            transition: background 0.5s;
        }

        .wrapper {
            background-color: #ffffff;
            width: 90%;
            max-width: 500px; /* Added max-width for better responsiveness on large screens */
            padding: 50px 30px;
            border-radius: 8px;
            position: absolute;
            transform: translate(-50%, -50%);
            left: 50%;
            top: 50%;
            box-shadow: 0 20px 25px rgba(0, 0, 0, 0.15);
        }

        #output-color {
            width: 100%;
            height: 35vmin;
            max-height: 250px;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }

        #output-code {
            background-color: #f1f5fc;
            font-size: 16px;
            font-weight: 400;
            color: #3f415f;
            width: 100%;
            padding: 15px 10px;
            border-radius: 5px;
            margin: 20px 0 40px 0;
            border: 1px solid #e0e0e0;
            text-align: center;
            user-select: all; /* Make text easily selectable */
        }

        .btn-container {
            display: flex;
            justify-content: space-between; /* Changed for better spacing */
            gap: 15px; /* Added gap between buttons */
        }

        .btn-container button {
            background-color: #587ef4;
            color: #ffffff;
            width: 100%; /* Make buttons fill the container */
            padding: 15px 0;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            border: none;
            outline: none;
            transition: background-color 0.3s;
        }

        .btn-container button:hover {
            background-color: #4a6ada;
        }
    </style>
</head>
<body>
    <div class="wrapper">
        <div id="output-color"></div>
        <input type="text" id="output-code" readonly>
        <div class="btn-container">
            <button id="generate-btn">Generate</button>
            <button id="copy-btn">Copy</button>
            <button id="download-btn">Download</button>
        </div>
    </div>

    <!-- Script -->
    <script>
        // Get references to all the DOM elements
        const generateBtn = document.getElementById("generate-btn");
        const copyBtn = document.getElementById("copy-btn");
        const downloadBtn = document.getElementById("download-btn");
        const outputColor = document.getElementById("output-color");
        const outputCode = document.getElementById("output-code");
        const hexString = "0123456789abcdef";

        /**
         * Generates a random hexadecimal color code.
         * @returns {string} A random color code, e.g., "#1a2b3c".
         */
        const randomColor = () => {
            let hexCode = "#";
            for (let i = 0; i < 6; i++) {
                hexCode += hexString[Math.floor(Math.random() * hexString.length)];
            }
            return hexCode;
        };

        /**
         * Generates a two-color linear gradient with a random angle and applies it.
         */
        const generateGrad = () => {
            const colorOne = randomColor();
            const colorTwo = randomColor();
            const angle = Math.floor(Math.random() * 360);
            const gradient = `linear-gradient(${angle}deg, ${colorOne}, ${colorTwo})`;

            // Apply the generated gradient to the body background and the color preview box
            document.body.style.background = gradient;
            outputColor.style.background = gradient;

            // Display the CSS code in the input field
            outputCode.value = `background: ${gradient};`;
        };

        /**
         * Copies the generated CSS code to the clipboard.
         */
        copyBtn.addEventListener("click", () => {
            outputCode.select();
            document.execCommand("copy");
            // A non-blocking notification would be better, but alert is simple
            alert("Code Copied To Clipboard!");
        });

        /**
         * Downloads the generated gradient as a high-quality PNG image.
         */
        downloadBtn.addEventListener("click", () => {
            // Use html2canvas to capture the outputColor div.
            // The 'scale' option increases the resolution of the output image.
            // A scale of 4 provides a high-quality image.
            html2canvas(outputColor, { scale: 4 }).then(canvas => {
                // Create a temporary anchor element to trigger the download
                const link = document.createElement("a");
                link.download = "gradient-hq.png";
                // Convert the canvas to a PNG image data URL
                link.href = canvas.toDataURL("image/png");
                // Programmatically click the link to start the download
                link.click();
            });
        });

        // Add event listener to the generate button
        generateBtn.addEventListener("click", generateGrad);

        // Generate a gradient when the page loads initially
        window.onload = generateGrad;
    </script>
</body>
</html>
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