body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: #f8f9fa;
    color: #343a40;
}

header {
    background-color: #333;
    color: #fff;
    padding: 1rem 0;
}

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

nav ul li {
    margin: 0 1rem;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
}

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

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

section {
    margin-bottom: 2rem;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #e60000;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

p {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    position: relative;
    bottom: 0;
    width: 100%;
}

.course, .product, .info, #confirmacion {
    background-color: #fff;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.course:hover, .product:hover, .info:hover, #confirmacion:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
}

.course img, .product img, .main-image {
    max-width: 100%;
    border-radius: 10px;
}

.btn {
    background-color: #e60000;
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    font-size: 18px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
    margin-top: 1rem;
}

.btn:hover {
    background-color: #b00000;
}

.btn-download {
  display: block;
  width: 100%;
  max-width: 400px;
  margin: 20px auto;
  padding: 20px;
  font-size: 1.5em;
  text-align: center;
  background-color: #007BFF;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
}

/* Estilos específicos para la página del curso de fotografía */
.course-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

.bold-logo {
    max-width: 100px;
    margin-top: 10px;
}

.main-image {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-top: 2rem;
}

/* Responsivo */
@media (max-width: 600px) {
    nav ul {
        flex-direction: column;
    }

    nav ul li {
        margin: 0.5rem 0;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    p {
        font-size: 1rem;
    }

    .btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }

    .bold-logo {
        max-width: 80px;
    }
}