:root {
  --fg: #ebdbb2;
  --fg-muted: #a89984;
  --bg: #0d0e0f;
  --accent: #fe8019;
  --rule: #3c3836;
  --code-bg: #1d2021;
  --code-border: #504945;
  --code-fg: #fb4934;
  --max-width: 52rem;
  --font-family: monospace, serif;
  --font-size: 14px;
  --code-font-family: Courier, monospace;
  --logo-max-width: 175px;
}

* {
  box-sizing: border-box;
}

:is(img, video, svg) {
  max-width: 100%;
  height: auto;
}

:is(html, body) {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-family);
  font-size: var(--font-size);
  line-height: 1.55;
}

body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

body > header,
body > footer,
main {
  max-width: var(--max-width);
  width: 100%;
  margin-left: clamp(1rem, 8vw, 8rem);
  margin-right: auto;
  padding: 0rem 1rem;
}

main {
  padding: 0;
}

main > section,
main > article {
  padding: 0rem 1rem;
  margin-bottom: 2rem;
}

main > article hr {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  overflow: visible;
  padding: 0;
  border: none;
  border-top: medium double var(--rule);
  color: #333;
  text-align: center;
}

main > article hr:after {
  content: "∇";
  display: inline-block;
  position: relative;
  top: -0.8em;
  font-size: 1.4em;
  padding: 0 0.45em;
  background: var(--bg);
}

@media (max-width: 600px) {
  body > header,
  body > footer,
  main {
    margin-left: auto;
    margin-right: auto;
  }

  .index-list li {
    grid-template-columns: 1fr;
  }

  .index-list time {
    grid-column: 1;
  }
}

body > header {
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  gap: 0.3rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
}

#logo > a {
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  > img {
    max-width: var(--logo-max-width);
  }
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.3rem;
}

nav a {
  color: var(--fg-muted);
  text-decoration: none;
}

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

body > footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px dotted var(--rule);
  color: var(--fg-muted);
  font-size: 0.85rem;
  padding: 1.25rem 1rem;
}

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

a.lex {
  border-bottom: 1px dotted var(--accent);
  text-decoration: none;
}

:is(h1, h2, h3) {
  line-height: 1.2;
  margin: 1.5em 0 0.5em;
}
h1 {
  font-size: 1.6rem;
}
h2 {
  font-size: 1.2rem;
}
h3 {
  font-size: 1.05rem;
}

:is(p, pre, blockquote) {
  margin: 0 0 1em;
}

code {
  background: var(--code-bg);
  color: var(--code-fg);
  border: 1px solid var(--code-border);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: var(--code-font-family);
}

pre {
  background: var(--code-bg);
  color: var(--fg);
  border: 1px solid var(--code-border);
  padding: 0.9rem 1rem;
  overflow-x: auto;
  border-radius: 4px;
  font-size: 0.875rem;
  line-height: 1.5;
  tab-size: 2;
}

pre code {
  background: transparent;
  color: inherit;
  border: 0;
  padding: 0;
  font-size: inherit;
  white-space: pre;
}

blockquote {
  border-left: 3px solid var(--rule);
  padding-left: 0.75rem;
  color: var(--fg-muted);
}

main figure {
  margin: 0 0 2rem;
}

main figure img {
  display: block;
}

article > header {
  margin-bottom: 1.5rem;
}
#page-meta {
  color: var(--fg-muted);
  font-size: 0.85rem;
  margin: 0;
}

#tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style-type: none;
  padding: 0;
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
}

#tags li {
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--fg-muted);
}

.index-list {
  list-style-type: none;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.index-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 1rem;
  align-items: baseline;
}

.index-list time {
  color: var(--fg-muted);
  font-size: 0.85rem;
  grid-column: 2;
}

.index-list .summary {
  grid-column: 1 / -1;
  color: var(--fg-muted);
  margin: 0;
  font-size: 0.95rem;
}

#lexicon-list {
  list-style-type: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
  gap: 0.5rem 0.7rem;
}

.ref-count {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-left: 0.25rem;
}

#sitemap {
  ul {
    display: block;
    margin-block-start: 0.1em;
    margin-block-end: 0.1em;
    margin-left: -1.8em;
  }

  li {
    list-style-type: none;
    display: list-item;
    text-align: match-parent;
  }

  li:has(ul) > a::after {
    color: var(--fg);
    display: inline-block;
    margin: 0 0.25rem;
    content: ">";
  }
}

article > footer {
  margin-top: 2rem;
  border-top: 1px dotted var(--rule);

  h2 {
    font-size: 0.9rem;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
  }

  ul {
    list-style-type: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.9rem;
  }
}