body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
            color: #333;
            background-color: #f5f5f5;
        }
        header {
            background-color: #2c3e50;
            color: white;
            padding: 1rem;
            position: relative;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 1rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
        }
        h1, h2, h3 {
            color: #e74c3c;
            margin-top: 2rem;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 2px solid #e74c3c;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        .btn {
            display: inline-block;
            background-color: #e74c3c;
            color: white;
            padding: 0.5rem 1rem;
            text-decoration: none;
            border-radius: 5px;
            margin: 1rem 0;
        }
        .download-btn {
            background-color: #27ae60;
        }
        .login-btn {
            background-color: #3498db;
        }
        .image-container {
            text-align: center;
            margin: 2rem 0;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
        }
        footer {
            background-color: #2c3e50;
            color: white;
            text-align: center;
            padding: 1rem;
            margin-top: 2rem;
        }
        .tags {
            margin: 1rem 0;
        }
        .tag {
            display: inline-block;
            background-color: #34495e;
            color: white;
            padding: 0.3rem 0.6rem;
            border-radius: 5px;
            margin: 0.2rem;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                position: absolute;
                top: 100%;
                left: 0;
                background-color: #2c3e50;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                margin: 0;
                padding: 0.5rem;
                text-align: center;
            }
            .mobile-menu-btn {
                display: block;
            }
            .container {
                padding: 1rem;
            }
        }