<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Code Generator</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background: linear-gradient(135deg, #007BFF, #6610F2);
            color: white;
            text-align: center;
            flex-direction: column;
        }
        .container {
            background: rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
            position: relative;
        }
        #code-container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin: 10px 0;
            background: white;
            padding: 10px;
            border-radius: 5px;
            color: black;
            font-size: 22px;
            font-weight: bold;
            position: relative;
        }
        .copy-btn {
            background: #ffc107;
            padding: 8px;
            cursor: pointer;
            border-radius: 5px;
            font-size: 18px;
            transition: 0.3s;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .copy-btn:hover {
            background: #e0a800;
        }
        .tooltip {
            visibility: hidden;
            background: black;
            color: white;
            text-align: center;
            padding: 5px;
            border-radius: 5px;
            font-size: 14px;
            position: absolute;
            bottom: -30px;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s ease-in-out;
        }
        .copy-btn:active .tooltip {
            visibility: visible;
            opacity: 1;
        }
        button {
            background: #28a745;
            color: white;
            border: none;
            padding: 10px 20px;
            cursor: pointer;
            font-size: 18px;
            margin-top: 10px;
            border-radius: 5px;
            transition: 0.3s;
        }
        button:hover {
            background: #218838;
        }
    </style>
</head>
<body>

    <div class="container">
        <h2>Unique Code Generator</h2>
        <div id="code-container">
            <span id="code"><?php echo generateCode(); ?></span>
            <span class="copy-btn" onclick="copyCode()">
                📋
                <span class="tooltip">Copied...</span>
            </span>
        </div>
        <button onclick="generateNewCode()">Generate New</button>
    </div>

    <script>
        function generateNewCode() {
            let randomPart = "";
            let chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
            for (let i = 0; i < 10; i++) {
                randomPart += chars.charAt(Math.floor(Math.random() * chars.length));
            }
            document.getElementById("code").innerText = "ROCREDBB-22C" + randomPart;
        }

        function copyCode() {
            let codeText = document.getElementById("code").innerText;
            navigator.clipboard.writeText(codeText).then(() => {
                let tooltip = document.querySelector(".tooltip");
                tooltip.style.visibility = "visible";
                tooltip.style.opacity = "1";
                setTimeout(() => {
                    tooltip.style.visibility = "hidden";
                    tooltip.style.opacity = "0";
                }, 1000);
            });
        }
    </script>

</body>
</html>