body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background-color: #0a0a2a;
            color: #e0e0ff;
        }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 2px solid #ff9900;
            margin-bottom: 30px;
        }
        .logo {
            font-size: 28px;
            font-weight: bold;
            color: #ff9900;
            text-shadow: 2px 2px 4px #000;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 20px;
        }
        nav ul li a {
            color: #e0e0ff;
            text-decoration: none;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #ff9900;
            font-size: 24px;
            cursor: pointer;
        }
        h1 {
            color: #ff9900;
            border-bottom: 2px solid #ff9900;
            padding-bottom: 10px;
        }
        h2 {
            color: #ffcc66;
            margin-top: 30px;
        }
        h3 {
            color: #cc9966;
        }
        .btn {
            display: inline-block;
            padding: 10px 20px;
            background-color: #ff9900;
            color: #0a0a2a;
            text-decoration: none;
            border-radius: 5px;
            margin: 10px 0;
            font-weight: bold;
        }
        .download-section {
            background-color: #1a1a3a;
            padding: 20px;
            border-radius: 10px;
            margin: 20px 0;
            text-align: center;
        }
        .image-container {
            text-align: center;
            margin: 30px 0;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
        }
        footer {
            margin-top: 50px;
            padding-top: 20px;
            border-top: 2px solid #ff9900;
            text-align: center;
            font-size: 14px;
        }
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            nav {
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
            }
            nav ul li {
                margin: 10px 0;
            }
        }