:root {
  --base: #000;
  --color: #000d;
  --emphatic-color: #000e;
  --link-color: #1a46c7;
  --background: #fff;

  /* --post-em: max(4vmin, 1rem);
  --max-width: calc(36 * var(--post-em)); */
  --post-em: 1rem;
  --max-width: 800px;
  --margin-block-start: 1em;
  --margin-block-end: 1em;
}
/* @media (prefers-color-scheme: dark) {
  :root {
    --base: #fff;
    --color: #fffb;
    --emphatic-color: #fffe;
    --background: #1a1a1a;
    --link-color: deepskyblue;
  }
} */
html {
  color: var(--color);
  background: var(--background);
  font: normal 100% / 1.5 sans-serif;
}
body {
  margin: 0;
}
table,
svg {
  font: inherit;
  color: inherit;
}
p,
ul,
ol,
pre,
details {
  margin-block-start: var(--margin-block-start);
  margin-block-end: var(--margin-block-end);
}
ul {
  padding-inline-start: 1.5em;
  padding-inline-end: 0;
}
li,
li ul {
  margin-top: 0.35em;
  margin-bottom: 0.35em;
}
hr {
  width: 100%;
  height: 0;
  background: none;
  border: none;
  border-top: 0.1em solid;
  margin: 2em 0;
}
main hr {
  width: 5em;
  margin: 2.5em auto;
}
main p.sep {
  font-size: 1.5em;
  text-align: center;
  margin: 0.5em 0;
}
h1 {
  font-weight: 900;
  font-size: 1.8em;
  line-height: 1.05;
  margin: 1.5em 0 1em 0;
}
h2 {
  font-size: 1.3em;
  line-height: 1.05;
  border-bottom: 0.04em solid rgb(from var(--color) r g b / 0.3);
  padding: 0 0 0.2em 0;
  margin: 1.5em 0 0.75em 0;
}
h2#related,
h2#demos {
  font-size: 0.8rem;
  font-weight: normal;
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgb(from var(--color) r g b / 0.5);
  margin-top: 2rem;
}
h3 {
  font-size: 1.15em;
  line-height: 1.1;
  padding: 0;
  margin: 1.5em 0 0.75em 0;
}
h4 {
  font-size: 1em;
  font-weight: bold;
  line-height: 1.1;
  padding: 0;
  margin: 1.5em 0 1em;
}
strong,
h1,
h2,
h3,
h4 {
  color: var(--emphatic-color);
}
a,
a:hover,
a:visited,
a:active {
  --color: var(--link-color);
  color: var(--color);
  text-decoration-thickness: 0.02rem;
  text-underline-offset: 0.18em;
}
.layout {
  display: flex;
  flex-direction: column;
  max-width: var(--max-width);
  min-height: 100vh;
  justify-content: center;
  align-items: center;
  padding: 1rem 2rem 2rem;
  margin: 0 auto;
  box-sizing: border-box;
}
.post {
  font-size: var(--post-em);
  box-sizing: border-box;
  position: relative;
  box-sizing: border-box;
}
.post > :first-child {
  --margin-block-start: 0;
  margin-top: 0;
}
.post > :last-child {
  --margin-block-end: 0;
  margin-bottom: 0;
}
header,
footer {
  --margin-block-start: 0.35em;
  --margin-block-end: 0.35em;
  width: 100%;
  font-size: 0.85rem;
  color: rgb(from var(--base) r g b / 0.5);
  box-sizing: border-box;
}
header {
  margin-bottom: 1.25em;
}
header .metadata {
  display: flex;
  align-items: center;
  gap: 0.75em;
}
header .metadata br {
  display: none;
}
header .metadata .date {
  display: block;
  font-size: 0.85em;
}
header .image {
  --d: 2rem;
  display: inline-block;
  width: var(--d);
  height: var(--d);
  font-size: 0;
  background: rgb(from var(--base) r g b / 0.1);
  border-radius: 50%;
  overflow: hidden;
}
header .image img {
  width: var(--d);
  height: auto;
}
main:last-child {
  padding-bottom: 1.5rem;
}
footer {
  text-align: end;
}
@media (width <= 600px) {
  .layout {
    padding: 0.75rem 1rem 1rem;
  }
  header,
  footer {
    padding: 0 0.25rem;
  }
  .post::before {
    right: 0;
  }
}