body { font-family: 'Segoe UI', Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: linear-gradient(135deg, #FF4E50, #F9D423); color: white; padding: 20px; text-align: center; position: relative; }
        .logo { font-size: 2.2em; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        nav { background: rgba(255,255,255,0.9); position: absolute; top: 100%; left: 0; right: 0; display: none; }
        nav.active { display: block; }
        .mobile-nav-toggle { display: none; position: absolute; top: 20px; right: 20px; }
        @media (max-width: 768px) {
            .mobile-nav-toggle { display: block; background: white; border: none; font-size: 1.5em; }
        }
        h1 { color: #2c3e50; border-bottom: 3px solid #e74c3c; padding-bottom: 10px; }
        h2 { color: #e67e22; margin-top: 30px; }
        h3 { color: #3498db; }
        .download-btn, .login-btn { display: inline-block; background: #2ecc71; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .stats-box { background: #f8f9fa; padding: 15px; border-left: 5px solid #3498db; margin: 20px 0; }
        img { max-width: 100%; height: auto; margin: 15px 0; border-radius: 8px; }
        footer { background: #2c3e50; color: white; text-align: center; padding: 20px; margin-top: 40px; }
        .tag { background: #34495e; color: white; padding: 5px 10px; border-radius: 15px; margin: 5px; display: inline-block; }