body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background: #FF6B35; color: white; padding: 20px; border-radius: 10px; margin-bottom: 30px; }
        .logo { font-size: 28px; font-weight: bold; text-transform: uppercase; letter-spacing: 2px; }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .mobile-menu { display: none; }
        @media (max-width: 768px) {
            nav { flex-direction: column; }
            .desktop-nav { display: none; }
            .mobile-menu { display: block; margin-bottom: 15px; }
        }
        h1 { color: #E74C3C; border-bottom: 3px solid #F1C40F; padding-bottom: 10px; }
        h2 { color: #2C3E50; margin-top: 25px; }
        h3 { color: #3498DB; }
        .btn { display: inline-block; background: #2ECC71; color: white; padding: 10px 20px; border-radius: 5px; margin: 10px 0; text-decoration: none; }
        .download-btn { background: #E74C3C; }
        .login-btn { background: #3498DB; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        footer { background: #34495E; color: white; padding: 20px; margin-top: 40px; border-radius: 10px; }
        .tags { margin: 20px 0; }
        .tag { background: #7F8C8D; color: white; padding: 5px 10px; border-radius: 15px; margin: 5px; display: inline-block; }