:root {
    /* set color-scheme to switch between light or dark */
    color-scheme: light dark;

    --light-bg: whitesmoke;
    --light-color: black;
    --light-header-bg: #9fc8c5;
    --dark-bg: black;
    --dark-color: whitesmoke;
    --dark-header-bg: #41716e;
}

.visually-hidden {
    display: none;
}

.focus-only {
    position: absolute;
    border: 1px solid black;
    background: white;
    padding: 5px;
    margin: 5px;
    transform: translateY(-1800%);
}

.focus-only:focus {
    transform: translateY(0%);
}

html,
body {
    margin: 0;
    padding: 0;
    font-family: Verdana, Tahoma, sans-serif;
}

html {
    width: 100%;
    height: 100%;
}

body {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

* {
    background-color: light-dark(var(--light-bg), var(--dark-bg));
    color: light-dark(var(--light-color), var(--dark-color));
}

.light {
    color-scheme: light;
}

.dark {
    color-scheme: dark;
}

div#content {
    display: flex;
    flex-grow: 1;
}

a {
    overflow-wrap: break-word;
}

header,
div#content,
div#cookie-message-popup,
footer {
    flex-shrink: 0;
}

header,
header * {
    background-color: light-dark(var(--light-header-bg), var(--dark-header-bg));
}

header {
    display: flex;
    align-items: center;
    padding: 10px;
}

header #header-title {
    font-size: 2em;
    margin-left: 20px;
    font-weight: bold;
}

footer {
    font-size: 0.8em;
    border-top: 1px solid light-dark(var(--light-color), var(--dark-color));
    text-align: center;
}

footer a {
    display: inline-block;
    margin: 0.5em;
}

main {
    padding: 10px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

div#page-content {
    flex-grow: 1;
}

h1,
h2,
h3 {
    font-weight: normal;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    line-height: 1.3;
}

h1 {
    font-size: 2em;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
}

h2 {
    font-size: 1.75em;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}

h3 {
    font-size: 1.4em;
}

nav.active {
    background-color: light-dark(var(--light-header-bg), var(--dark-header-bg));
}

button.menu-button {
    margin: 5px;
    background-color: light-dark(var(--dark-bg), var(--light-bg));
    color: light-dark(var(--dark-color), var(--light-color));
    border: 0;
    border-radius: 5px;
}

button.menu-button i {
    font-size: 1.3em;
    background-color: light-dark(var(--dark-bg), var(--light-bg));
    color: light-dark(var(--dark-color), var(--light-color));
    padding: 5px;
}

#menu,
#menu *,
#main-menu {
    background-color: light-dark(var(--light-header-bg), var(--dark-header-bg));
}

#menu {
    padding-top: 1em;
}

#menu ul {
    list-style: none;
    padding: 0;
}

#menu li {
    padding: 0.8em;
}

#menu a {
    border: none;
    color: light-dark(var(--light-color), var(--dark-color));
    margin-top: 2px;
    margin-bottom: 2px;
    text-decoration: none;
    white-space: nowrap;
    font-size: 1.2em;
}

#menu a:hover {
    text-decoration: underline;
}

div#content.active {
    display: block;
}

#menu.active {
    display: block;
    top: 0;
    width: 100%;
}

p.intro-paragraph {
    font-size: 1.2em;
}

@media (width < 800px) {
    #menu a {
        white-space: wrap;
    }

}


@media (width > 480px) {
    .menu-button {
        position: fixed;
        left: 150px;
        display: none;
    }

    nav {
        background-color: light-dark(var(--light-header-bg), var(--dark-header-bg));
    }
}

@media (width <= 480px) {
    #menu {
        display: none;
    }

    #logo {
        display: none;
    }

    div#content {
        display: flex;
        flex-direction: column;
    }
}