body {
                    font-family: 'Open Sans', sans-serif;
                    margin: 0;
                    padding: 0;
                    background-color: #f9f9f9;
                }
        
                .cursos-section {
                    padding: 20px;
                    text-align: center;
                }
        
                .cursos-section h2 {
                    font-size: 24px;
                    color: #333;
                    margin-bottom: 20px;
                }
        
                .cursos-container {
                    display: flex;
                    flex-wrap: wrap;
                    justify-content: flex-start;
                    margin-top: 20px;
                    flex-direction: row;
                }
        
                .curso-card {
                    background-color: #fff;
                    border-radius: 8px;
                    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
                    margin: 10px;
                    width: 300px;
                    min-height: 400px;
                    display: flex;
                    flex-direction: column;
                    justify-content: space-between;
                    transition: transform 0.3s ease;
                    overflow: hidden;
                    box-sizing: border-box;
                }
        
                .curso-card:hover {
                    transform: translateY(-5px);
                }
        
                .curso-card img {
                    width: 100%;
                    height: 170px;
                    object-fit: cover;
                    border-top-left-radius: 8px;
                    border-top-right-radius: 8px;
                }
        
                .curso-info {
                    padding: 15px;
                    text-align: left;
                    display: flex;
                    flex-direction: column;
                    flex-grow: 1;
                }
        
                .curso-info h3 {
                    font-size: 18px;
                    color: #333;
                    margin-bottom: 5px;
                }
        
                .curso-info p {
                    font-size: 14px;
                    color: #666;
                    margin-bottom: 10px;
                }
        
                .curso-info .instructor {
                    font-style: italic;
                    color: #888;
                    margin-bottom: 15px;
                }
        
                .curso-link-container {
                    text-align: center;
                    padding: 10px;
                }
        
                .curso-link {
                    display: inline-block;
                    padding: 10px 20px;
                    background-color: #007bff;
                    color: #fff;
                    text-decoration: none;
                    border-radius: 5px;
                    transition: background-color 0.3s ease;
                    font-size: 16px;
                }
        
                .curso-link:hover {
                    background-color: #0056b3;
                }
        
                .categorias-filtro {
                    text-align: left;
                    margin-bottom: 20px;
                    padding-left: 20px;
                }
        
                .categorias-filtro h3 {
                    font-size: 18px;
                    color: #333;
                    margin-bottom: 10px;
                }
        
                .categorias-lista {
                    list-style: none;
                    padding: 0;
                    margin: 0;
                }
        
                .categorias-lista li {
                    cursor: pointer;
                    padding: 8px 15px;
                    border-radius: 5px;
                    margin-bottom: 5px;
                    background-color: #e9ecef;
                    color: #333;
                    transition: background-color 0.3s ease;
                    font-size: 14px;
                    text-align: left;
                }
        
                .categorias-lista li:hover {
                    background-color: #007bff;
                    color: #fff;
                }
        
                .categorias-lista li.active {
                    background-color: #007bff;
                    color: #fff;
                }
        
                /* Estilos para el layout de filtro a la izquierda y tres columnas */
                @media (min-width: 1200px) {
                    .cursos-container {
                        flex-direction: row;
                        justify-content: flex-start;
                        align-items: flex-start;
                    }
                    .categorias-filtro {
                        width: 200px;
                        margin-right: 20px;
                        align-self: flex-start;
                        margin-bottom: 0;
                    }
                    .cursos-lista {
                        flex: 1;
                        display: flex;
                        flex-wrap: wrap;
                        justify-content: flex-start;
                    }
                    .curso-card {
                        margin: 10px;
                        width: calc(33.33% - 20px);
                        box-sizing: border-box;
                    }
                }
        
                @media (max-width: 768px) {
                    .cursos-container {
                        flex-direction: column;
                        align-items: center;
                    }
                    .curso-card {
                        width: 90%;
                        box-sizing: border-box;
                    }
                    .categorias-filtro {
                        padding-left: 10px;
                    }
                }
        
                @media (min-width: 769px) and (max-width: 1199px) {
                    .curso-card {
                        width: calc(50% - 20px);
                        box-sizing: border-box;
                    }
                    .cursos-lista {
                        justify-content: center;
                    }
                }