body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background-color: #006400; color: white; padding: 15px; position: relative; }
        .logo { font-size: 24px; font-weight: bold; text-transform: uppercase; }
        nav ul { list-style: none; padding: 0; display: flex; gap: 20px; }
        nav a { color: white; text-decoration: none; }
        .mobile-menu-btn { display: none; background: #4CAF50; color: white; border: none; padding: 10px; cursor: pointer; }
        h1 { color: #006400; border-bottom: 2px solid #4CAF50; padding-bottom: 10px; }
        h2 { color: #2E8B57; margin-top: 30px; }
        h3 { color: #3CB371; }
        .download-btn, .login-btn { display: inline-block; background: #006400; color: white; padding: 10px 20px; margin: 10px 0; text-decoration: none; border-radius: 5px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        footer { background: #f5f5f5; padding: 20px; margin-top: 30px; }
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            nav ul { display: none; flex-direction: column; }
            nav.active ul { display: flex; }
        }