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


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: #515f7e;
}

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;
}

img {
    width: 15%;
     display: block;
       margin-left: auto;
       margin-right: auto;
}

#toggle-index {
    font-size: 1.2rem;
    padding: 10px 15px;
    margin-bottom: 20px;
    display: block;
}

nav ul {
    list-style-type: 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{
    color: rgb(2, 2, 2);
}

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

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

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

a:hover {
    text-decoration: underline;
}

#toggle-index {
    background-color: #ffffff; 
    color: rgb(2, 2, 2);
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px; /* Bordes redondeados */
    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; /* Azul más oscuro */
    transform: scale(1.05); /* Efecto de zoom */
    color: white;
}


#toggle-index:active {
    background-color: #003d80; /* Azul aún más oscuro */
    transform: scale(0.98); /* Efecto de presión */
    color: white;
}