:root {
    --bg: #191919;
    --bg-dark: #252525;
    --bg-light: #4b4b4b;
    --fg: #ffffff;
    --hl: #8080ff;
}

* {
    background: var(--bg);
    padding-left: 5px;
    padding-right: 5px;
    font-family: "ubuntu", "sans";
    color: var(--fg);
}

header {
    background: var(--hl);
    font-size: 250%;
    font-weight: lighter;
    text-align: center;
    margin: 10px;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    margin-top: calc(-50vw + 50%);
    padding-top: 20px;
    padding-bottom: 5px;
}

main {
    /*display: flex;
    flex-direction: row;*/
    line-height: 1.7;
}

nav {
    vertical-align: top;
    margin: 10px;
    width: 50%;
}

#body {
    margin: 10px;
}

p {
    text-align: justify;
    text-indent: 50px;
}

.flex-container {
    width: 100%;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4 {
    font-weight: lighter;
    border-left: solid;
    border-width: 5px;
    border-color: var(--hl);
}

a {
    color: var(--hl);
}

img {
    margin: 10px;
    align-self: flex-start;
    max-width: 200px;
    border-radius: 10px;
}

iframe {
    max-width: 200px;
    max-height: 500px;
}

ul {
    margin-bottom: 5px;
}

dt {
    font-weight: bold;
    font-size: 90%;
    border-bottom-style: solid;
    border-bottom-width: 2px;
    border-bottom-color: var(--bg-light);
    padding: 10px;
}

dt .details {
    font-weight: normal;
    font-size: 80%;
}

button, input {
    background: var(--bg-light);
    border-style: solid;
    border-width: 1px;
    border-color: var(--bg);
    padding: 10px;
    border-radius: 10px;
}

input checkbox {
    margin-bottom: 5px;
}

.done {
    background: var(--bg-dark);
    text-decoration: line-through;
}

input {
    background: var(--bg-dark);
}

@media screen and (max-width: 769px) {
}