body {
            font-family: Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
            color: #333;
            background-color: #f0f8ff;
        }
        header {
            background-color: #004d99;
            color: white;
            padding: 15px 0;
            text-align: center;
            position: relative;
        }
        header h1 {
            margin: 0;
            font-size: 2em;
        }
        .logo-text {
            font-weight: bold;
            font-size: 1.5em;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        nav {
            background-color: #003366;
            overflow: hidden;
        }
        nav a {
            float: left;
            display: block;
            color: white;
            text-align: center;
            padding: 14px 16px;
            text-decoration: none;
        }
        nav a:hover {
            background-color: #ddd;
            color: black;
        }
        .mobile-nav-toggle {
            display: none;
            cursor: pointer;
            padding: 10px;
            background-color: #003366;
            color: white;
            border: none;
            font-size: 1.2em;
        }
        .content {
            padding: 20px;
            max-width: 1200px;
            margin: auto;
        }
        .download-btn, .login-btn {
            display: inline-block;
            padding: 10px 20px;
            margin: 10px 0;
            background-color: #007bff;
            color: white;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
        }
        .download-btn:hover, .login-btn:hover {
            background-color: #0056b3;
        }
        footer {
            background-color: #003366;
            color: white;
            text-align: center;
            padding: 10px 0;
            position: relative;
            bottom: 0;
            width: 100%;
        }
        @media screen and (max-width: 768px) {
            nav a {
                float: none;
                display: none;
            }
            .mobile-nav-toggle {
                display: block;
            }
            nav.active a {
                display: block;
            }
        }
        img {
            max-width: 100%;
            height: auto;
            margin: 10px 0;
        }