body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f5f5dc; }
        header { background-color: #8b4513; color: white; padding: 1rem; text-align: center; position: relative; }
        header .logo { font-size: 2rem; font-weight: bold; text-shadow: 2px 2px 4px #000; }
        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; }
        .content { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
        h1 { font-size: 2.5rem; margin-bottom: 1rem; color: #8b4513; }
        h2 { font-size: 2rem; margin: 1.5rem 0 1rem; color: #a0522d; }
        h3 { font-size: 1.5rem; margin: 1rem 0 0.5rem; color: #cd853f; }
        p { margin-bottom: 1rem; }
        .btn { display: inline-block; padding: 0.5rem 1rem; background-color: #8b4513; color: white; text-decoration: none; border-radius: 5px; margin: 0.5rem; }
        .download-btn { background-color: #4CAF50; }
        .login-btn { background-color: #2196F3; }
        img { max-width: 100%; height: auto; margin: 1rem 0; }
        .tags { margin: 1rem 0; }
        .tag { display: inline-block; background-color: #e0e0e0; padding: 0.2rem 0.5rem; border-radius: 3px; margin-right: 0.5rem; }
        footer { background-color: #8b4513; color: white; text-align: center; padding: 1rem; margin-top: 2rem; }
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            nav { display: none; flex-direction: column; align-items: center; }
            nav.active { display: flex; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.75rem; }
            h3 { font-size: 1.25rem; }
        }