/* CSS Document */

body {
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    height: 100vh;
    display: grid;
    grid-template-columns: 16rem calc(100vw - 16rem);
    grid-template-rows: 1fr 3em;
    grid-template-areas: "nav main" "footer footer";
    font-size: 18px;
    margin: 0;
    transition: 0.5s;
}

#btn {
    position:absolute;
    left: 16rem;
    top: 0;
    width: 2rem;
    height: 2rem;
    background-color: #666;
    color: white;
    font-size: 1.4rem;
    text-align: center;
    font-weight: bold;
    cursor: pointer;
    user-select: none;
    transition: 0.5s;
    z-index: 10;
}

/* ------------------ MENU ----------------------*/

nav {
    width: 16rem;
    grid-area: nav;
    font-family: sans-serif;
    background-color: #333;
    color: #eee;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

nav h1 {
    font-size: 140%;
    color: var(--main-h1-color);
    text-align: center;
}

nav hr {
    width:4em;
}

nav>ul {
    list-style-type: none;
    padding-left: 1em;
}

nav>ul>li {
    margin: 1em 0 0 0;
}

nav>ul>ul>li {
    font-size: 90%;
    margin: 0.5em 0 0 0;
}

nav a {
    text-decoration: none;
    color: #eee;
}

nav a:hover {
    color: var(--main-h1-color);
}

/* ------------------ MAIN ----------------------*/
main {
    grid-area: main;
    background-color: white;
    padding: 0;
    margin: 0;
}

/* ------------------ PIED de PAGE ----------------------*/

footer {
    grid-area: footer;
    padding: 0.5em 0 0 0;
    margin: 0;
    background-color: #eee;
    text-align: center;
}

footer a {
    text-decoration: none;
}