body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background: linear-gradient(135deg, #1a2a6c, #b21f1f, #1a2a6c); }
        .container { max-width: 1200px; margin: 0 auto; padding: 20px; background: rgba(255,255,255,0.95); box-shadow: 0 0 20px rgba(0,0,0,0.3); }
        h1 { color: #d4af37; text-align: center; margin-bottom: 10px; }
        h2 { color: #8b0000; border-bottom: 2px solid #d4af37; padding-bottom: 5px; }
        h3 { color: #4b0082; }
        .logo { font-size: 28px; font-weight: bold; color: #d4af37; text-shadow: 2px 2px 4px rgba(0,0,0,0.5); }
        .nav { background: #8b0000; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        .nav a { color: white; text-decoration: none; margin: 0 10px; }
        .mobile-menu { display: none; }
        .btn { background: #4b0082; color: white; padding: 10px 15px; border: none; border-radius: 5px; cursor: pointer; }
        .download-btn { background: #006400; display: block; text-align: center; margin: 20px 0; padding: 15px; font-size: 18px; }
        .login-btn { background: #000080; display: block; text-align: center; margin: 20px 0; padding: 15px; font-size: 18px; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 10px; }
        .footer { background: #333; color: white; text-align: center; padding: 20px; margin-top: 30px; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .mobile-menu { display: block; }
            .nav-links { display: none; }
            .nav-links.active { display: flex; flex-direction: column; }
        }