body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f5f5f5;
        }
        header {
            background-color: #2c3e50;
            color: white;
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 30px;
            position: relative;
        }
        .logo {
            font-size: 28px;
            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: 24px;
            cursor: pointer;
        }
        .nav-links {
            display: flex;
            gap: 20px;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: bold;
        }
        h1 {
            color: #e74c3c;
            margin-bottom: 20px;
            border-bottom: 2px solid #e74c3c;
            padding-bottom: 10px;
        }
        h2 {
            color: #3498db;
            margin-top: 30px;
            margin-bottom: 15px;
        }
        h3 {
            color: #2ecc71;
            margin-top: 25px;
            margin-bottom: 10px;
        }
        .download-btn, .login-btn {
            display: inline-block;
            background-color: #e74c3c;
            color: white;
            padding: 12px 25px;
            text-decoration: none;
            border-radius: 5px;
            margin: 15px 0;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .download-btn:hover, .login-btn:hover {
            background-color: #c0392b;
        }
        .image-container {
            text-align: center;
            margin: 30px 0;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .table-container {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background-color: white;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        th, td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background-color: #3498db;
            color: white;
        }
        .tags {
            margin: 30px 0;
        }
        .tag {
            display: inline-block;
            background-color: #9b59b6;
            color: white;
            padding: 5px 10px;
            border-radius: 20px;
            margin-right: 10px;
            margin-bottom: 10px;
            text-decoration: none;
        }
        footer {
            margin-top: 50px;
            padding: 20px;
            background-color: #2c3e50;
            color: white;
            text-align: center;
            border-radius: 10px;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                position: absolute;
                top: 80px;
                left: 0;
                background-color: #2c3e50;
                padding: 20px;
                box-sizing: border-box;
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            body {
                padding: 10px;
            }
        }