@import url(https://cdn.jsdelivr.net/gh/bitmaks/cm-web-fonts@latest/font/Classical%20Serif%20Italic/cmun-classical-serif-italic.css);
:root {
    scroll-behavior: smooth;
    --font-sans: Arial, Helvetica, sans-serif;
    --font-fam-italic: "Computer Modern Classical Serif Italic";
    


    font-family: "Computer Modern Serif";
    font-size: 18px;
}

.light-mode {
    --icon-filter: none;
    --reverse-icon-filter: invert(1);
    --primary: #6681a4;
    --secondary: #ced1f1;
    
    --shadow: rgba(124, 124, 124, 0.452);

    --text-col: black;
    --inv-text-col: white;
    
    --bg-col: rgb(248, 243, 237);
    
    --hover-col: #fcfcfc;
    --nav-bar-item-col: #ececec;
    
    --border-primary-col: #383838;
    --border-secondary-col: #bbb;
    
    --normal-link: #6681a4;
    --visited-link: #a46666;
    --hover-link: #4b473d;
    --input-col: #eee;

    --details-col-offset: 0.02;
}

.dark-mode {
    --icon-filter: invert(1);
    --reverse-icon-filter: none;
    --primary: #6681a4;
    --secondary: #333a53;
    
    --shadow: rgba(17, 17, 17, 0.493);

    --text-col: white;
    --inv-text-col: black;
    
    --bg-col: rgb(36, 35, 34);
    
    --hover-col: #181717;
    --nav-bar-item-col: #333;

    --border-primary-col: #383838;
    --border-secondary-col: #bbb;

    --normal-link: #bdc5d3;
    --visited-link: #d9c2c2;
    --hover-link: #eeede5;

    --input-col: #585858;

    --details-col-offset: 0.06;
}


a:link {
  color: var(--normal-link); /* onvisited */
}

a:visited {
  color: var(--visited-link); /* visited, zachter zodat het niet vloekt */
}

a:hover {
  color: var(--hover-link); /* duidelijk bij hover */
}

a:active {
  opacity: 0.3;
}

.link-no-style:link , .link-no-style:visited, .link-no-style:hover, .link-no-style:active {
  color: var(--text-col);
  text-decoration: none;
  font-style: normal !important;
  font-family:unset;
}

main details[open] {
    box-shadow: 4px 4px 5px var(--shadow), -4px 4px 5px var(--shadow), 0px -2px 5px var(--shadow);
    background-color: rgba(0, 0, 0, var(--details-col-offset));
    border-radius: 3px; 
    border: 1px solid var(--border-primary-col);
    box-sizing: border-box;
}

input[type='text'] , input[type='number'], textarea {
    background-color: var(--bg-col);
    color: var(--text-col);
    border: 1px solid var(--border-secondary-col);
    border-radius: 4px;
}


img {
  border-width: 3px;
  border-color: var(--border-secondary-col);
  border-style: double;
  box-sizing: border-box;
  max-width: 100%;
}

figure {
  margin: 0;
  display: inline;
}

figure img {
  display: block;
}

.figure-left {
  float: left;
  margin-right: 1rem;
}

.figure-right {
  float: right;
  margin-left: 1rem;
}



button, select {
    background-color: var(--input-col) !important;
    border-radius: 4px;
    border-width: 1px;
    border-style: solid;
    color: var(--text-col) !important;
}

button:hover, select:hover, summary:hover {
    opacity: 0.7;
    cursor: pointer;
}

button:active, summary:active {
    opacity: 0.3;
}


details {
    padding-left: 15px;
}


header {
    background-color: var(--header-bg-col);
    border-bottom: var(--border-primary-col);
    border-style: solid;
    border-width: 0px;
    border-bottom-width: 1px;
    width: 100%;
    margin: 0;
    padding: 0;
}

aside {
    padding: 1rem;
    position:static;
}

main h1 {
    margin-top: 0;
    padding: 0;
}

aside h3 {
  margin-top: 0;
}


a {
    font-family: var(--font-fam-italic);
}

body {
    color: var(--text-col);
    display: flex;
    flex-direction: column;   /* verticaal */
    min-height: 100vh;
    margin: 0;
    background-color: var(--bg-col);
}

/* middle layout */
.layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 768px minmax(0, 1fr);
    gap: 1rem;
    flex: 1;
    margin: 0;
    padding: 0;               /* vult beschikbare hoogte */
}



@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr; /* alleen main */
  }
  aside {
    display: none;
  }
}

@media (max-width: 1380px) {
  aside {
    opacity: 0;
  }
}


/* main content */
main {
  flex: 1;                  /* neemt resterende ruimte */
  padding: 1rem;
}

/* footer */
footer, header {
  text-align: center;

}
footer {
    opacity: 0.2;
    border-top: var(--border-primary-col);
    border-style: solid;
    border-width: 0px;
    border-top-width: 1px;
}