body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 2px solid #FF6B6B; }
        .logo { font-size: 28px; font-weight: bold; color: #FF6B6B; text-shadow: 1px 1px 2px rgba(0,0,0,0.1); }
        nav ul { display: flex; list-style: none; gap: 20px; }
        nav a { text-decoration: none; color: #333; font-weight: 500; }
        .mobile-menu-btn { display: none; background: #FF6B6B; color: white; border: none; padding: 8px 12px; border-radius: 4px; }
        h1 { color: #FF6B6B; margin-top: 30px; }
        h2 { color: #4ECDC4; margin-top: 25px; }
        h3 { color: #45B7D1; margin-top: 20px; }
        .btn { display: inline-block; padding: 10px 20px; background: #FF6B6B; color: white; text-decoration: none; border-radius: 5px; margin: 10px 0; }
        .download-section, .login-section { background: #f8f9fa; padding: 20px; border-radius: 8px; margin: 20px 0; }
        .stats-box { display: flex; justify-content: space-around; margin: 20px 0; }
        .stat-item { text-align: center; }
        .gallery { display: flex; gap: 15px; margin: 20px 0; }
        .gallery img { width: 30%; border-radius: 8px; }
        footer { margin-top: 40px; padding-top: 20px; border-top: 1px solid #eee; }
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            nav ul { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; background: white; width: 100%; padding: 20px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
            nav.active ul { display: flex; }
            .gallery { flex-direction: column; }
            .gallery img { width: 100%; }
        }