body {
  background-color: #fafafa;
  color: #555;
  font-family: "Helvetica", "Arial", sans-serif;
  line-height: 1.5;
  padding: 2em 1em;
}

.container {
    width: 100%;
    display: flex;
    justify-content: flex-start;
}

.content {
    max-width: 45em;
    margin-left: 17%;
}

.footer {
    margin: 5em auto 0 auto;
    text-align: center;
}

h1, h2, h3, strong {
  color: #333;
}

blockquote {
  padding-left: 2em;
  border-left: 4px solid #d0d0d0;
}

nav {
    display: flex;
    flex-direction: column;
}

.header.h1 {
    padding: 0;
}

.no-ul {
    text-decoration: none;
}

a, a:visited {
    color: #333;
}

pre {
    background-color: #ddd;
    padding: 0.5em;
    border-radius: 5px;
}

.addition {
    color: green;
}

.code-block {
    border-radius: 5px;
    border: 2px solid #111;
    margin: 0.5em auto;
}

.code-block pre {
    margin-top: 0;
    margin-bottom: 0;
    border-radius: 0 0 5px 5px;
}

.code-block .title {
    background-color: #111;
    color: #ddd;
    padding-left: 0.4em;
}

.img-row {
    display: flex;
    justify-content: space-around;
    margin-top: 1em;
}

.end-image {
    margin-top: 2em;
    text-align: center;
}

figure {
    margin: 0;
}

.toc {
    border: 1px solid #333;
    padding: 0.4em;
    border-radius: 5px;
}

.toc h3 {
    margin: 0;
}

.toc ul {
    margin: 0 auto;
    list-style-type: none;
}

.dating-table th {
    text-align: left;
    border-bottom: 1px solid #333;
}

.dating-table tbody tr:nth-child(6) {
    border-top: 10px solid #333;
}

.dating-table {
    border-radius: 5px;
    border: 1px solid #333;
    padding: 0.4em;
}

.text-center {
    text-align: center;
}

.note {
    font-style: italic;
    background-color: beige;
    padding: 0.2em;
}

@media (max-width:1007px) {
    .container {
        flex-direction: column;
    }

    nav {
        flex-direction: row;
        align-items: baseline;
        justify-content: space-evenly;
    }

    .content {
        max-width: 100%;
        margin: 0 auto;
    }
}

@media (max-width:640px) {
    .container {
        flex-direction: column;
    }

    nav {
        flex-direction: row;
        align-items: baseline;
        justify-content: space-evenly;
    }

    .content {
        max-width: 100%;
        margin: 0 auto;
    }

    .img-row {
        flex-direction: column;
        justify-content: space-around;
        margin-top: 0;
    }

    figure {
        text-align: center;
    }

    img {
        margin-top: 0.5em;
    }

    pre {
        overflow-x: scroll;
    }
}


@media (prefers-color-scheme: dark) {
    body {
      background-color: #1b1b1b;
      color: #fff;
    }

    h1, h2, h3, strong {
      color: #fff;
    }

    blockquote {
      border-left: 4px solid #d0d0d0;
    }

    a, a:visited {
        color: #ccc;
    }

    pre {
        background-color: #343434;
    }

    .addition {
        color: #07e107;
    }

    .code-block {
        border: 2px solid #bbb;
    }

    .code-block .title {
        background-color: #bbb;
        color: #1b1b1b;
    }

    .toc {
        border: 1px solid #ccc;
    }

    .dating-table th {
        border-bottom: 1px solid #ccc;
    }

    .dating-table tbody tr:nth-child(6) {
        border-top: 10px solid #ccc;
    }

    .dating-table {
        border: 1px solid #ccc;
    }

    .note {
        background-color: #0A3B66;
    }
}

code {
  font-family: Menlo, Monaco, Consolas, 'Lucida Console', monospace;
  font-size: 85%;
  margin: 0;
  hyphens: manual;
}
pre {
  margin: 1em 0;
  overflow: auto;
}
pre code {
  padding: 0;
  overflow: visible;
  overflow-wrap: normal;
}
.sourceCode {
 background-color: transparent;
 overflow: visible;
}

/* CSS for syntax highlighting */
pre > code.sourceCode { white-space: pre; position: relative; }
pre > code.sourceCode > span { line-height: 1.25; }
pre > code.sourceCode > span:empty { height: 1.2em; }
.sourceCode { overflow: visible; }
code.sourceCode > span { color: inherit; text-decoration: inherit; }
div.sourceCode { margin: 1em 0; }
pre.sourceCode { margin: 0; }
@media screen {
div.sourceCode { overflow: auto; }
}
@media print {
pre > code.sourceCode { white-space: pre-wrap; }
pre > code.sourceCode > span { display: inline-block; text-indent: -5em; padding-left: 5em; }
}
pre.numberSource code
  { counter-reset: source-line 0; }
pre.numberSource code > span
  { position: relative; left: -4em; counter-increment: source-line; }
pre.numberSource code > span > a:first-child::before
  { content: counter(source-line);
    position: relative; left: -1em; text-align: right; vertical-align: baseline;
    border: none; display: inline-block;
    -webkit-touch-callout: none; -webkit-user-select: none;
    -khtml-user-select: none; -moz-user-select: none;
    -ms-user-select: none; user-select: none;
    padding: 0 4px; width: 4em;
    color: #aaaaaa;
  }
pre.numberSource { margin-left: 3em; border-left: 1px solid #aaaaaa;  padding-left: 4px; }
div.sourceCode
  {   }
@media screen {
pre > code.sourceCode > span > a:first-child::before { text-decoration: underline; }
}
code span.al { color: #ff0000; font-weight: bold; } /* Alert */
code span.an { color: #60a0b0; font-weight: bold; font-style: italic; } /* Annotation */
code span.at { color: #7d9029; } /* Attribute */
code span.bn { color: #40a070; } /* BaseN */
code span.bu { color: #008000; } /* BuiltIn */
code span.cf { color: #007020; font-weight: bold; } /* ControlFlow */
code span.ch { color: #4070a0; } /* Char */
code span.cn { color: #880000; } /* Constant */
code span.co { color: #60a0b0; font-style: italic; } /* Comment */
code span.cv { color: #60a0b0; font-weight: bold; font-style: italic; } /* CommentVar */
code span.do { color: #ba2121; font-style: italic; } /* Documentation */
code span.dt { color: #902000; } /* DataType */
code span.dv { color: #40a070; } /* DecVal */
code span.er { color: #ff0000; font-weight: bold; } /* Error */
code span.ex { } /* Extension */
code span.fl { color: #40a070; } /* Float */
code span.fu { color: #06287e; } /* Function */
code span.im { color: #008000; font-weight: bold; } /* Import */
code span.in { color: #60a0b0; font-weight: bold; font-style: italic; } /* Information */
code span.kw { color: #007020; font-weight: bold; } /* Keyword */
code span.op { color: #666666; } /* Operator */
code span.ot { color: #007020; } /* Other */
code span.pp { color: #bc7a00; } /* Preprocessor */
code span.sc { color: #4070a0; } /* SpecialChar */
code span.ss { color: #bb6688; } /* SpecialString */
code span.st { color: #4070a0; } /* String */
code span.va { color: #19177c; } /* Variable */
code span.vs { color: #4070a0; } /* VerbatimString */
code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warning */