/* Estilos*/
body {
 font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #fbecec;
    color: #4e4e4e;
}

h1, h2, h3, h4 {
    color: #4e4e4e;
    text-align: center;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5em;
    margin-top: 10px;
}

h2 {
    font-size: 2em;
    margin-bottom: 15px;
}

h3 {
    font-size: 1.5em;
}

header {
    background-color: #ffd0d0;
    color: #4e4e4e;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    margin-bottom: 10px;
}

header nav {
    margin-top: 10px;
}

nav ul {
    list-style-type: none;
    padding: 0;
    display: flex;
    justify-content: center;
    background-color: #f98686;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 1.2em;
    padding: 10px;
}

nav ul li a:hover {
    color: #7904ac;
}

section {
    margin: 20px auto;
    padding: 20px;
    max-width: 1920px;
    background-color: #ffffff;
    text-align: center;
    border-radius: 10px;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin: 10px 0;
}

.materias {
    display: flex;
    justify-content: space-between;
    flex-wrap: nowrap; 
    gap: 20px; 
    margin: 20px 0;
    overflow-x: auto; 
}

.materia-nivel {
    flex: 1;
    padding: 10px;
    text-align: center
}

.materia-nivel h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.materia-nivel ul {
    list-style-type: none;
    padding: 0;
}

.materia-nivel li {
    margin: 10px 0;
    font-size: 1em;
}

a {
    color: #4c00bd;
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

a:hover {
    text-decoration: underline;
    color: #800080;
}

footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    font-size: 11px;
}

footer p {
    margin-bottom: 20px;
}

footer img {
    margin: 0 20px; 
    margin-bottom: 20px;
}

footer div {
    display: flex;
    justify-content: center;
}

img {
    display: block;
    margin: 20px auto;
    border-radius: 10px;
    max-width: 100%;
    height: auto;
}