/* CSS RESETS */
/* ----------------------------------------------------- */

*   {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

html    {
    margin: 0;
    padding: 0;
}

body    {
    margin: 0;
    padding: 0;
    width: 100%;
}

img {
    display: block; 
    margin: 0 auto;
    max-width: 100%;
    width: 100%;
}

h1, h2, h3, h4 {
    font-weight: 100;
    font-weight: normal;

}

ul, ol, li {
    padding: 0;
    margin: 0;
}

figure {
    margin: 0;
}


/* CSS VARIABLES */
/* ----------------------------------------------------- */

:root {
    --bgcol: rgb(250,250,250);
    --pad1: 20px;
    
}

/* OVERALL */
/* ----------------------------------------------------- */

html {
    font-family: sans-serif;
    font-size: 16px;
}

body {
    padding: var(--pad1);    
    background-color: var(--bgcol);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100vh;
    
}

header {
    position: fixed;
    left: var(--pad1);
    font-size: 1rem;
    padding-bottom: var(--pad1);
}


/* DIV.CONTENT-WRAP, MAIN & ASIDE */
/* ----------------------------------------------------- */


div.content-wrap {
    display: flex;
    gap: calc(2 * var(--pad1));
    justify-content: center;
    align-items: flex-start;    
}

main, aside {
    padding: var(--pad1);
    background-color: white;    
}

main {
    width: 45%;
    margin-left: 5%;   
    padding-bottom: calc(2 * var(--pad1));
}
aside {
    width: 15%;
    position: sticky;
    top: var(--pad1);    
}


figure > img {
    margin-bottom: 10px;
}
figure {
    margin-bottom: var(--pad1);
}



/* ASIDE > NAV */
/* ----------------------------------------------------- */

nav > a {
    display: block;
    margin-bottom: 5px;
    cursor: pointer;
}

nav ul {
    padding-left: 1.2em;    
    max-height: 0;
    overflow: hidden;
    transition: 0.2s;
    list-style: none;
}
nav ul li:last-of-type {
    margin-bottom: 15px;
}

nav > a.sectiontitle:hover,
a.opened {
    background-color: black;
    color: white;
}


/* FOR #CURRENTPAGE & #CURRENTSECTION VARIABLES */
/* ----------------------------------------------------- */

a#currentsection {
    background-color: ;
}

a#currentpage {
    position: relative;
}

a#currentpage::before {
    content: "\00BB";
    position: absolute;
    left: -1em;
}


/* GENERAL TEXT */
/* ----------------------------------------------------- */

p.s {
    font-size: 0.85rem;
}

/* FOOTER */
/* ----------------------------------------------------- */

footer {
    border-top: 1px solid lightgray;
    margin-top: calc(2 * var(--pad1));
}


/* RESPONSIVE VIEWS */
/* ----------------------------------------------------- */

@media(max-width: 1200px) {
    header {
        position: static;
        margin-left: 5%;
    }
    div.content-wrap {
        gap: var(--pad1);
    }
    main {
        width: 75%;
        margin-left: 5%;
    }
    aside {
        width: 25%;
        margin-right: 2%; 
    }
}

@media(max-width: 650px) {
    header {
        margin-left: 0;
    }
    div.content-wrap {
        display: block;
    }
    main {
        width: 100%;
        margin-left: 0;
    }
    aside {
        width: 100%;
        margin-right: 0;
        margin-top: var(--pad1);        
    }
}