body {
    font-family: "Times New Roman", serif;
    font-size: 12pt;
    line-height: 2;
}

main{
    margin-left: 2.54cm;
    margin-right: 2.54cm;
}

nav {
    border-radius: 10px;
    border-bottom: 1px solid grey;
    height: 6vh;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80%;
    margin: 0 auto;

}

.nav-list {
    width: 100%;
    display: flex;
    justify-content: space-around;
    list-style-type: none;
    padding: 0;
    margin: 0;
}

nav a {
    color: #333;
    text-decoration: none;
    font-size: 18px;
}


.titulo {
    margin-top: 4cm;
    text-align: center;
}

section {
    margin-bottom: 6vh;
}

.parrafo {
    text-indent: 1.27cm;
    margin-bottom: 1em;
}

.referencias {
    font-size: 12pt;
}

.referencias p {
    text-indent: -0.5in;
    margin-left: 0.5in;
    margin-bottom: 0.5em;
}


.hamburger-menu {
    display: none;
    font-size: 30px;
    cursor: pointer;
}

.menu-toggle {
    display: none;
}

@media screen and (max-width: 1200px) {

    nav{
        border: 0;
    }
    .hamburger-menu {
        display: block;
        cursor: pointer;
        padding: 10px;
        margin-top: 20px;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .nav-list {

        display: none;
        flex-direction: column;
        align-items: start;
        width: 100%;
        margin-top: 40px;
    }
    .menu-toggle:checked + .hamburger-menu + .nav-list {
        display: flex;
    }

    .nav-list li {
        padding: 5px 10px;
    }

}