:root {
    --text: darkslategray;
    --line: OrangeRed;
    --accent: OrangeRed;
    --bg: darkgrey;
    --fill: lightgrey;
}

body {
    color: var(--text);
    font-family: verdana, sans-serif;
    background-color: var(--bg);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-color: var(--text) var(--line);
}

*::-webkit-scrollbar {
    width: 20px;
}
*::-webkit-scrollbar-track {
    background: var(--line);
}
*::-webkit-scrollbar-thumb {
    background-color: var(--text);
    border: transparent;
}

img {
    max-width: 100%;
}

nav {
    float: left;
    width: 15%;
    height: 100vh;
    position: relative;
    background-color: var(--bg);
}

nav div {
    height: fit-content;
    width: fit-content;
    position: absolute;
    top: 50%;
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    right: -1.5vw;
    text-align: right;
}

nav a {
    display: block;
    margin: 10px 0;
    padding: 0;
    font-size: 1.5em;
    text-decoration: none;
    color: var(--fill);
    filter: drop-shadow(1px 1px 0 var(--text))
        drop-shadow(-1px 1px 0 var(--text)) drop-shadow(0 -1px 0 var(--text))
        drop-shadow(1px 0 var(--text));
}

nav a:hover,
nav a:focus {
    color: var(--accent);
}

main {
    float: left;
    width: 82%;
    height: 100vh;
    padding: 2em;
    overflow-y: scroll;
    background-color: var(--bg);
    background-repeat: no-repeat;
    background-size: auto;
}

.container {
    max-width: 1500px;
}

.caret {
    cursor: pointer;
    user-select: none;
    display: inline-flex;
    align-items: center;
}
.caret::before {
    display: inline-block;
    margin-right: 6px;
    transition: transform 0.25s ease;
}

details[open] .caret::before {
    transform: rotate(90deg);
}

.license-box > *:not(summary) {
    animation: slideDown 0.25s ease;
}

.license-box {
    background-color: var(--fill);
    margin: 8px 0;
    padding-left: 10px;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

section {
    margin: 2em 0;
    padding: 1em 2em;
    background-color: var(--fill);
    border: 5px solid var(--line);
}

.stripe {
    float: left;
    width: 3%;
    height: 100vh;
    background-color: var(--line);
}

hr {
    border: none;
    border-top: 5px solid var(--line);
}

header {
    font-size: 2em;
    margin-bottom: 2rem;
    color: var(--fill);
    filter: drop-shadow(1px 1px 0 var(--text))
        drop-shadow(-1px 1px 0 var(--text)) drop-shadow(0 -1px 0 var(--text))
        drop-shadow(1px 0 var(--text));
}

h2,
h3,
h4,
h5,
h6,
p,
table,
details,
cite,
blockquote,
img {
    margin: 1rem 0;
}

ul,
ol,
dl {
    margin: 1rem 0 1rem 2rem;
    list-style-type: none;
}

ul ul,
ol ol {
    margin: 0 0 0 2rem;
    list-style-type: none;
}

p,
table,
ul,
ol,
dl {
    font-size: 1rem;
}

a {
    color: var(--accent);
    padding: 2px;
}

p a:hover {
    color: var(--fill);
    background-color: var(--accent);
}

h6 {
    font-size: 1em;
}
h5 {
    font-size: 1.25em;
}
h4 {
    font-size: 1.5em;
}
h3 {
    font-size: 1.75em;
}

blockquote {
    background-color: var(--accent);
    color: var(--fill);
    padding: 1em;
}

blockquote a,
blockquote code {
    color: var(--text);
}

cite {
    display: block;
    text-align: right;
}

code,
details,
pre {
    background-color: var(--bg);
}

code {
    font-family: "Courier New", monospace;
    padding: 2px;
}

details,
pre {
    padding: 1em;
}

pre {
    overflow-x: auto;
}

details p {
    margin: 1rem 0 1rem 2rem;
}

table {
    border: 5px solid var(--line);
}
tr,
td,
th {
    border: 2px solid var(--line);
}
td,
th {
    padding: 3px;
}

figcaption {
    text-align: center;
    margin: -0.5em 1em 1em 1em;
}

footer {
    font-size: 1em;
    text-align: center;
    background-color: var(--accent);
    margin-top: 2em;
    padding: 5px;
}

footer a {
    color: var(--text);
}

.flex-box {
    display: flex;
    flex-wrap: wrap;
    margin: -1em;
    align-items: flex-start;
}

.flex-box section {
    margin: 1em;
}

.full {
    flex: 1 1 100%;
}
.half {
    flex: 1 1 calc(50% - 2em);
}
.third {
    flex: 1 1 calc(33% - 2em);
}
.twothird {
    flex: 1 1 calc(66% - 2em);
}
.quarter {
    flex: 1 1 calc(25% - 2em);
}
.threequarter {
    flex: 1 1 calc(75% - 2em);
}

@media screen and (max-width: 800px) {
    nav,
    main,
    .stripe {
        float: none;
        width: 100%;
        height: fit-content;
    }

    nav {
        padding: 2vw;
    }

    nav div {
        height: fit-content;
        width: 100%;
        position: static;
        -ms-transform: translateY(0);
        transform: translateY(0);
        text-align: right;
    }

    nav img {
        z-index: -1;
        position: absolute;
        left: 0;
        max-height: 100%;
    }

    nav a {
        display: inline-block;
        margin: 5px;
    }

    nav a::after {
        content: " ↗";
    }

    main {
        overflow: auto;
        padding: 2em 1em;
    }

    header {
        text-align: center;
        font-size: 1.5em;
    }

    section {
        padding: 0 1em;
    }

    .stripe {
        height: 30px;
    }

    *::-webkit-scrollbar {
        width: 10px;
    }
}