body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 20px;
    background-color: #f9f9f9;
    color: #333;
}

h1 {
    font-size: 2em;
    margin-bottom: 0.5em;
    color: #2c3e50;
    text-align: center;
}

h2 {
    font-size: 1.5em;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    color: #2c3e50;
}

h3 {
    font-size: 1.2em;
    margin-top: 1.2em;
    color: #3b5998;
}

section {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin-left: 20px;
}

p {
    margin-bottom: 1em;
}

.container,
.containerPH {
    display: flex;
    align-items: center;
    justify-content: center;
}

#toggle-index {
    font-size: 1.2rem;
    padding: 10px 15px;
    margin-bottom: 20px;
    display: block;
    background-color: #ffffff;
    color: rgb(2, 2, 2);
    border: none;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
}

#toggle-index:hover,
#toggle-index:focus {
    background-color: #0056b3;
    transform: scale(1.05);
    color: white;
}

#toggle-index:active {
    background-color: #003d80;
    transform: scale(0.98);
    color: white;
}

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

nav ul li {
    margin: 5px 0;
}

#index-menu ul,
#index-menu li {
    list-style: none;
    padding-left: 0;
    margin-left: 0;
}

nav ul a,
nav ul li a {
    color: rgb(2, 2, 2);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

nav ul a:hover,
nav ul li a:hover,
a:hover {
    text-decoration: underline;
    color: #004c99;
}

#lista-indice {
    text-decoration: underline;
}

/* Listas */

ul {
    list-style-type: disc;   /* Círculo negro */
    padding-left: 50px;
    margin-bottom: 1em;
}

ol {
    padding-left: 50px;
    margin-bottom: 1em;
}

li {
    margin-bottom: 5px;
}

/* Niveles específicos */

#listaLvl1 {
    list-style-type: disc;
}

#listaLvl1 li {
    list-style-type: disc;
}

#listaLvl3 {
    list-style-type: square;
}

#listaLvl3 li {
    list-style-type: square;
}