/* ==========================================================================
   Variables
   ========================================================================== */

:root {
  color-scheme: light dark;

  --bg1: light-dark(white, #222);
  --bg2: light-dark(#eee, #111);
  --bg3: light-dark(#ddd, black);
  --fg2: light-dark(#888, #888);
  --fg1: light-dark(#222, #ddd);
  --link: light-dark(#79d, #9bf);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

body {
  display: flex;
  min-height: 100dvh;
  flex-direction: column;
  margin: 0;

  background-color: var(--bg1);
  color: var(--fg1);
  font-family: sans-serif;
  line-height: 1.5;

  -webkit-text-size-adjust: none;
  text-size-adjust: none;
}

header,
footer,
thead,
pre,
code {
  background-color: var(--bg2);
}

.navbar,
main,
.footer-content,
.site-header {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2em;
  padding-right: 2em;
  box-sizing: border-box;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5em;
  font-size: 0.9em;
  color: var(--fg2);
}

.site-header a {
  color: var(--fg2);
}

main {
  flex: 1;
  padding-top: 2em;
  padding-bottom: 2em;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
}

article {
  margin-top: 2em;
}

article:not(:last-of-type) {
  padding-bottom: 2em;
  border-bottom: solid 1px var(--fg2);
}

.metadata {
  margin: 1em 0;
}

.tags {
  list-style: none;
  display: inline-flex;
  gap: 0.5em;
  margin: 0;
  padding: 0;
}

.tags a {
  color: var(--fg2);
  text-decoration: none;
}

p,
li {
  text-align: left;
}

pre code {
  padding: 0;
}

code {
  padding: 0.2em 0.3em;
}

table {
  border-collapse: collapse;
  width: 100%;
}

td,
th {
  border: solid 1px;
}

td,
th,
pre {
  padding: 1em;
}

pre,
.katex {
  overflow: auto;
}

figure {
  margin: 0;
}

img {
  width: 100%;
}

figcaption {
  margin-top: 1em;
  color: var(--fg2);
  text-align: center;
}

blockquote {
  margin: 1em 0;
  padding: 0.5em;
  border-left: 4px solid #e67e22;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
  display: flex;
  align-items: center;
  position: relative;
  background: inherit;
}

.navbar input[type="checkbox"],
.navbar label[for="dropdown"] {
  margin-left: auto;
  display: none;
}

.navbar label[for="dropdown"] svg {
  display: block;
}

.navbar ul {
  display: flex;
  list-style: none;
  margin: 0 -1em 0 auto;
  padding: 0;
  background: inherit;
  text-align: center;
}

.navbar ul a {
  display: block;
  padding: 1em;
  color: inherit;
  text-decoration: none;
}

.navbar ul .active {
  border-bottom: solid 2px;
}

.navbar ul a:hover {
  background-color: var(--bg3);
  text-decoration: none;
}

@media screen and (max-width: 600px) {
  .navbar label[for="dropdown"] {
    display: block;
  }

  .navbar ul {
    position: absolute;
    top: 100%;
    right: 0;
    margin: 0;
    flex-direction: column;
  }
  
  .navbar ul .active {
    border: none;
    background-color: var(--bg3);
  }

  .navbar ul a {
    padding: 1em 2em;
  }

  .navbar:has(input[type="checkbox"]:checked) ul {
    display: none;
  }
}

/* ==========================================================================
   Syntax Highlighting (Chroma)
   ========================================================================== */

/* Modified version of:
 * hugo gen chromastyles --style=algol_nu */

/* LineLink */ .chroma .lnlinks { outline:none;text-decoration:none;color:inherit }
/* LineTableTD */ .chroma .lntd { vertical-align:top;padding:0;margin:0;border:0; }
/* LineTable */ .chroma .lntable { border-spacing:0;padding:0;margin:0;border:0; }
/* LineHighlight */ .chroma .hl { background-color:var(--bg2) }
/* LineNumbersTable */ .chroma .lnt { white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f }
/* LineNumbers */ .chroma .ln { white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f }
/* Line */ .chroma .line { display:flex; }
/* Keyword */ .chroma .k { font-weight:bold }
/* KeywordConstant */ .chroma .kc { font-weight:bold }
/* KeywordDeclaration */ .chroma .kd { font-weight:bold;font-style:italic }
/* KeywordNamespace */ .chroma .kn { font-weight:bold }
/* KeywordPseudo */ .chroma .kp { font-weight:bold }
/* KeywordReserved */ .chroma .kr { font-weight:bold }
/* KeywordType */ .chroma .kt { font-weight:bold }
/* NameClass */ .chroma .nc { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameConstant */ .chroma .no { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameNamespace */ .chroma .nn { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameBuiltin */ .chroma .nb { font-weight:bold;font-style:italic }
/* NameBuiltinPseudo */ .chroma .bp { font-weight:bold;font-style:italic }
/* NameVariable */ .chroma .nv { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameVariableClass */ .chroma .vc { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameVariableGlobal */ .chroma .vg { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameVariableInstance */ .chroma .vi { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameVariableMagic */ .chroma .vm { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameFunction */ .chroma .nf { color:var(--fg2);font-weight:bold;font-style:italic }
/* NameFunctionMagic */ .chroma .fm { color:var(--fg2);font-weight:bold;font-style:italic }
/* LiteralString */ .chroma .s { color:var(--fg2);font-style:italic }
/* LiteralStringAffix */ .chroma .sa { color:var(--fg2);font-style:italic }
/* LiteralStringBacktick */ .chroma .sb { color:var(--fg2);font-style:italic }
/* LiteralStringChar */ .chroma .sc { color:var(--fg2);font-style:italic }
/* LiteralStringDelimiter */ .chroma .dl { color:var(--fg2);font-style:italic }
/* LiteralStringDoc */ .chroma .sd { color:var(--fg2);font-style:italic }
/* LiteralStringDouble */ .chroma .s2 { color:var(--fg2);font-style:italic }
/* LiteralStringEscape */ .chroma .se { color:var(--fg2);font-style:italic }
/* LiteralStringHeredoc */ .chroma .sh { color:var(--fg2);font-style:italic }
/* LiteralStringInterpol */ .chroma .si { color:var(--fg2);font-style:italic }
/* LiteralStringOther */ .chroma .sx { color:var(--fg2);font-style:italic }
/* LiteralStringRegex */ .chroma .sr { color:var(--fg2);font-style:italic }
/* LiteralStringSingle */ .chroma .s1 { color:var(--fg2);font-style:italic }
/* LiteralStringSymbol */ .chroma .ss { color:var(--fg2);font-style:italic }
/* OperatorWord */ .chroma .ow { font-weight:bold }
/* Comment */ .chroma .c { color:var(--fg2);font-style:italic }
/* CommentHashbang */ .chroma .ch { color:var(--fg2);font-style:italic }
/* CommentMultiline */ .chroma .cm { color:var(--fg2);font-style:italic }
/* CommentSingle */ .chroma .c1 { color:var(--fg2);font-style:italic }
/* CommentSpecial */ .chroma .cs { color:var(--fg2);font-weight:bold }
/* CommentPreproc */ .chroma .cp { color:var(--fg2);font-weight:bold }
/* CommentPreprocFile */ .chroma .cpf { color:var(--fg2);font-weight:bold }