body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            margin: 0;
            padding: 0;
            background-color: #f9f9f9;
        }
        header {
            background-color: #ff6b35;
            color: white;
            padding: 1rem;
            position: relative;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            display: inline-block;
        }
        nav {
            display: inline-block;
            margin-left: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            margin: 0 0.8rem;
        }
        .mobile-menu-btn {
            display: none;
            position: absolute;
            right: 1rem;
            top: 1rem;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        h1, h2, h3 {
            color: #2c3e50;
        }
        h1 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            margin: 2rem 0 1rem;
            border-bottom: 2px solid #ff6b35;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            margin: 1.5rem 0 0.8rem;
        }
        .btn {
            display: inline-block;
            background-color: #ff6b35;
            color: white;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem 0;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .btn:hover {
            background-color: #e05e2d;
        }
        .download-btn {
            background-color: #27ae60;
        }
        .download-btn:hover {
            background-color: #219653;
        }
        .login-btn {
            background-color: #3498db;
        }
        .login-btn:hover {
            background-color: #2980b9;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem 0;
        }
        footer {
            background-color: #2c3e50;
            color: white;
            padding: 2rem;
            text-align: center;
        }
        .tags {
            margin: 1.5rem 0;
        }
        .tag {
            display: inline-block;
            background-color: #7f8c8d;
            color: white;
            padding: 0.3rem 0.8rem;
            margin: 0.3rem;
            border-radius: 20px;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            nav {
                display: none;
                position: absolute;
                top: 4rem;
                left: 0;
                width: 100%;
                background-color: #ff6b35;
                padding: 1rem;
                box-sizing: border-box;
            }
            nav.active {
                display: block;
            }
            .mobile-menu-btn {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
        }