body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f5f5f5; }
        header { background-color: #1a73e8; color: white; padding: 1rem; text-align: center; position: relative; }
        .logo { font-size: 2rem; font-weight: bold; text-transform: uppercase; letter-spacing: 2px; }
        nav { display: flex; justify-content: center; gap: 2rem; margin-top: 1rem; }
        nav a { color: white; text-decoration: none; font-weight: bold; }
        .mobile-menu-btn { display: none; position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }
        main { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; background-color: white; border-radius: 8px; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
        h1, h2, h3 { color: #1a73e8; margin-top: 2rem; }
        h1 { font-size: 2.5rem; text-align: center; }
        h2 { font-size: 2rem; border-bottom: 2px solid #eee; padding-bottom: 0.5rem; }
        h3 { font-size: 1.5rem; }
        p { margin-bottom: 1rem; }
        .btn { display: inline-block; background-color: #1a73e8; color: white; padding: 0.8rem 1.5rem; border-radius: 4px; text-decoration: none; font-weight: bold; margin: 1rem 0; }
        .btn:hover { background-color: #0d47a1; }
        .download-section, .login-section { text-align: center; margin: 2rem 0; }
        .stats { background-color: #e8f5e9; padding: 1rem; border-radius: 4px; margin: 1rem 0; }
        .gallery { display: flex; flex-wrap: wrap; gap: 1rem; margin: 2rem 0; }
        .gallery img { width: 100%; max-width: 300px; height: auto; border-radius: 4px; }
        .tags { margin: 2rem 0; }
        .tag { display: inline-block; background-color: #e3f2fd; padding: 0.3rem 0.8rem; border-radius: 20px; margin-right: 0.5rem; text-decoration: none; color: #1a73e8; }
        footer { background-color: #333; color: white; text-align: center; padding: 2rem 1rem; margin-top: 2rem; }
        @media (max-width: 768px) {
            nav { flex-direction: column; align-items: center; display: none; }
            nav.active { display: flex; }
            .mobile-menu-btn { display: block; }
            .gallery { flex-direction: column; align-items: center; }
        }