body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #1a73e8; border-bottom: 3px solid #fbbf24; padding-bottom: 10px; }
        h2 { color: #166534; margin-top: 30px; }
        h3 { color: #854d0e; }
        .logo { font-size: 28px; font-weight: bold; color: #1a73e8; text-shadow: 1px 1px 2px rgba(0,0,0,0.1); }
        .nav { background: #f8fafc; padding: 15px; border-radius: 8px; margin-bottom: 20px; }
        .mobile-toggle { display: none; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; margin: 10px 0; background: #1a73e8; color: white; border-radius: 5px; text-decoration: none; }
        .img-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        .tags { margin: 20px 0; }
        .tag { display: inline-block; background: #e2e8f0; padding: 5px 10px; margin: 5px; border-radius: 15px; }
        footer { margin-top: 40px; padding: 20px; background: #1e293b; color: white; border-radius: 8px; }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; cursor: pointer; }
            .nav-links { display: none; }
            .nav-links.active { display: block; }
        }