body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f5f5dc;
        }
        header {
            background-color: #8b4513;
            color: white;
            padding: 20px;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        nav ul {
            display: flex;
            list-style: none;
            padding: 0;
        }
        nav li {
            margin-right: 20px;
        }
        nav a {
            color: white;
            text-decoration: none;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        h1 {
            color: #8b4513;
            border-bottom: 2px solid #8b4513;
            padding-bottom: 10px;
        }
        h2 {
            color: #a0522d;
            margin-top: 30px;
        }
        h3 {
            color: #cd853f;
        }
        .download-btn {
            display: inline-block;
            background-color: #4CAF50;
            color: white;
            padding: 10px 20px;
            margin: 10px 0;
            border-radius: 5px;
            text-decoration: none;
        }
        .login-btn {
            display: inline-block;
            background-color: #2196F3;
            color: white;
            padding: 10px 20px;
            margin: 10px 0;
            border-radius: 5px;
            text-decoration: none;
        }
        .highlight {
            background-color: #fff8dc;
            padding: 10px;
            border-left: 4px solid #8b4513;
        }
        img {
            max-width: 100%;
            height: auto;
            margin: 20px 0;
        }
        footer {
            background-color: #8b4513;
            color: white;
            padding: 20px;
            margin-top: 30px;
        }
        @media (max-width: 768px) {
            nav ul {
                display: none;
                flex-direction: column;
            }
            .mobile-menu-btn {
                display: block;
            }
            nav.active ul {
                display: flex;
            }
        }