body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, 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: 15px;
            border-radius: 5px;
            margin-bottom: 30px;
        }
        .logo {
            font-size: 28px;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        nav ul {
            list-style-type: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        nav a {
            color: white;
            text-decoration: none;
        }
        .mobile-nav-toggle {
            display: none;
            cursor: pointer;
            font-size: 24px;
        }
        h1 {
            color: #e74c3c;
            border-bottom: 3px solid #e74c3c;
            padding-bottom: 10px;
        }
        h2 {
            color: #2980b9;
            margin-top: 25px;
        }
        h3 {
            color: #27ae60;
        }
        .download-btn {
            display: inline-block;
            background-color: #2ecc71;
            color: white;
            padding: 12px 25px;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            margin: 15px 0;
        }
        .login-btn {
            display: inline-block;
            background-color: #3498db;
            color: white;
            padding: 12px 25px;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            margin: 15px 10px;
        }
        .highlight {
            background-color: #fffde7;
            padding: 10px;
            border-left: 4px solid #ffc107;
        }
        .image-container {
            margin: 25px 0;
            text-align: center;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
        }
        th, td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: left;
        }
        th {
            background-color: #3498db;
            color: white;
        }
        footer {
            margin-top: 40px;
            padding: 20px;
            background-color: #2c3e50;
            color: white;
            border-radius: 5px;
        }
        .tags {
            margin: 20px 0;
        }
        .tag {
            display: inline-block;
            background-color: #95a5a6;
            color: white;
            padding: 5px 10px;
            margin: 5px;
            border-radius: 3px;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .mobile-nav-toggle {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
            }
            nav ul.active {
                display: flex;
            }
        }