:root {
  --bg: #fff;
  --bg-alt: #eee;
  --text: #000;
  --text-emph: #000;
  --link: #00b;
  --border: #ccc;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414;
    --bg-alt: #1c1c1c;
    --text: #fff;
    --text-emph: #fff;
    --link: #8ab4ff;
    --border: #444;
  }
}

* { box-sizing: border-box; }

pre { overflow: scroll; }

img { max-width: 100%; }

a, a:visited { color: var(--link); }
a:hover { text-decoration: none; }

body {
  font-size: 16px;
  background-color: var(--bg);
  color: var(--text);
  margin: 0;
  font-family: Helvetica, Arial, sans-serif;
  word-wrap: break-word;
  line-height: 1.6;
}

main {
  max-width: 800px;
  padding: 0.5rem 1.2rem;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0.5rem 0.5rem 1.2rem;
}

header nav a {
  margin-right: 1rem;
  text-decoration: none;
}

@media (max-width: 600px) {
  header nav a {
    margin-right: 0.5rem;
  }
}

footer {
  border-top: 1px solid var(--border);
  padding: 0.5rem 1.2rem;
  text-align: right;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-emph);
  margin-top: 0;
  margin-bottom: 0.2em;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.2rem; }
h3, h4, h5, h6 { font-size: 1rem; }

p {
  margin-top: 0.4rem;
  margin-bottom: 0.8rem;
  line-height: 1.5;
}

time {
  display: block;
  color: var(--border);
  margin-bottom: 1rem;
  font-family: monospace;
}

hr { color: var(--border); }

blockquote {
  border-left: 0.4rem solid var(--border);
  margin: 1em 10px;
  padding: 0.2em 10px;
  font-style: italic;
  background: var(--bg-alt);
}

pre {
  background: var(--bg-alt);
  padding: 6px;
  overflow: auto;
}

pre, p code, li code { font-size: 14px; }

figure { margin: 2.5rem auto; }
figure img { display: block; margin: 0 auto 10px; }
figcaption { text-align: center; }

table {
  border-collapse: collapse;
  margin: 2rem 0;
  text-align: left;
  width: 100%;
}

table caption {
  background: var(--bg-alt);
  padding: 4px;
}

table tr { border-bottom: 1px solid var(--border); }
table td, table th { padding: 4px; }

ul.posts {
  list-style-type: none;
  padding-left: 0;
  margin-top: 0.5rem;
}

ul.posts li {
  display: flex;
  margin-bottom: 0.2rem;
}

ul.posts li span {
  padding-right: 1rem;
  font-family: monospace;
  white-space: nowrap;
}

@media only screen and (max-width: 767px) {
  ul.posts li {
    flex-direction: column;
    margin-bottom: 1rem;
  }
}

details { margin: 1rem 0; }
summary { cursor: pointer; }

dd { margin-bottom: 10px; }

.footnotes {
  font-size: 90%;
  margin-top: 2rem;
}