body {
    font-family: 'Lato', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #4CAF50;
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

#brand {
    text-align: center;
    margin-bottom: 1rem;
}

#brand h1 {
    color: white;
    font-size: 2rem;
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
}

nav a:hover {
    text-decoration: underline;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    color: #4CAF50;
}

#introduccion {
    text-align: center;
    margin-bottom: 3rem;
}

.articles-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

article {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.course-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

button {
    background-color: #2196F3;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
}

button:hover {
    background-color: #1976D2;
}

.testimonials {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

blockquote {
    background: white;
    padding: 1rem;
    border-left: 5px solid #4CAF50;
    flex: 1 1 300px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.order-form {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

label {
    font-weight: 700;
}

input, select {
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.newsletter {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 300px;
    margin: 1rem auto;
}

.newsletter label {
    font-size: 0.9rem;
}

.newsletter input[type="email"] {
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.newsletter button {
    padding: 0.5rem 1rem;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.newsletter button:hover {
    background-color: #45a049;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #333;
    color: white;
    padding: 1rem;
    text-align: center;
    display: block;
}

.cookie-banner.hidden {
    display: none;
}

@media (max-width: 768px) {
    header {
        padding: 1rem;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .testimonials {
        flex-direction: column;
    }

    .order-form {
        margin: 0 auto;
    }

    footer {
        padding: 1rem;
    }

    .newsletter {
        max-width: 100%;
    }
}