<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>OpenNHP Demo</title>
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

        body {
            font-family: 'Poppins', sans-serif;
            background-color: #f0f4f8;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
         