<title>Scthelpchain | International Digital Exchange</title> <style> body { font-family: 'Segoe UI', Arial, sans-serif; background: radial-gradient(circle, #001f3f, #000c18); color: #fff; text-align: center; margin: 0; padding: 20px; } .card { background: rgba(0, 31, 63, 0.8); border: 1px solid #ffd700; border-radius: 15px; padding: 25px; max-width: 500px; margin: 20px auto; box-shadow: 0 0 30px rgba(255, 215, 0, 0.2); backdrop-filter: blur(10px); } .gold-text { color: #ffd700; font-size: 28px; font-weight: bold; text-transform: uppercase; letter-spacing: 2px; } .btn { display: block; width: 100%; padding: 14px; margin: 12px 0; border-radius: 10px; border: none; font-weight: bold; cursor: pointer; text-decoration: none; font-size: 16px; transition: 0.3s; } .btn-fb { background: #1877f2; color: white; } .btn-ex { background: #ffd700; color: #000; } .btn:hover { opacity: 0.8; transform: scale(1.02); } input { width: 90%; padding: 12px; margin: 10px 0; border-radius: 8px; border: 1px solid #ffd700; background: #000; color: #00ff00; font-size: 18px; text-align: center; } .address-box { background: rgba(0,0,0,0.6); padding: 15px; font-size: 13px; border: 1px dashed #ffd700; border-radius: 8px; margin: 20px 0; word-break: break-all; } .footer { font-size: 12px; color: #aaa; margin-top: 40px; border-top: 1px solid rgba(255,215,0,0.2); padding-top: 20px; } </style>

<div class="header">
    <h1 class="gold-text">SCT HELPCHAIN</h1>
    <p style="color: #ffd700; opacity: 0.8;">International Digital Exchange & Charity Platform</p>
</div>

<div class="card">
    <a href="https://www.facebook.com/share/1bf8n82KKc/" target="_blank" class="btn btn-fb">Contact on Facebook</a>
    
    <div style="margin: 20px 0;">
        <label style="color: #ffd700;">Exchange Amount (USDT):</label><br>
        <input type="number" id="usdt" placeholder="0.00" oninput="calc()">
        <p id="result" style="color: #00ff00; font-weight: bold; margin-top: 10px;"></p>
    </div>

    <div class="address-box">
        <strong>Payment Address (BEP-20):</strong><br>
        <span style="color: #00ff00;">0x9fdb46c96240a185383e726b914c8d0437cc43cc</span>
    </div>

    <button class="btn btn-ex" onclick="send()">Exchange Request via WhatsApp</button>
</div>

<div class="footer">
    &copy; 2026 Scthelpchain International | Purana Paltan, Dhaka<br>
    Developed for Global Financial Assistance
</div>

<script>
    const rate = 126.5;
    function calc() {
        let u = document.getElementById('usdt').value;
        let res = document.getElementById('result');
        if(u > 0) { 
            res.innerHTML = "You will receive: " + (u * rate).toFixed(2) + " BDT";
        } else {
            res.innerHTML = "";
        }
    }
    function send() {
        let u = document.getElementById('usdt').value;
        if(u > 0) {
            window.open("https://wa.me/8801410522152?text=Scthelpchain Exchange Request: " + u + " USDT", "_blank");
        } else {
            alert("Please enter USDT amount!");
        }
    }
</script>