body { font-family: 'Segoe UI', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background: linear-gradient(135deg, #4b0082, #0000ff); color: white; padding: 20px; border-radius: 10px; margin-bottom: 30px; }
        .logo { font-size: 2.5em; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.5); }
        nav { display: flex; justify-content: space-between; align-items: center; }
        .mobile-menu { display: none; cursor: pointer; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-menu { display: block; }
        }
        h1 { color: #2c3e50; border-bottom: 3px solid #3498db; padding-bottom: 10px; }
        h2 { color: #e74c3c; margin-top: 25px; }
        h3 { color: #2ecc71; }
        .download-btn, .login-btn { 
            display: inline-block; 
            background: #e67e22; 
            color: white; 
            padding: 12px 25px; 
            margin: 15px 0; 
            border-radius: 5px; 
            text-decoration: none; 
            font-weight: bold; 
        }
        .stats-box { background: #f8f9fa; border-left: 5px solid #3498db; padding: 15px; margin: 15px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        footer { margin-top: 50px; padding: 20px; background: #2c3e50; color: white; text-align: center; }