:root {
  --font-main: "Iosevka Aile", sans-serif;
  --font-main-size: 1.2rem;

  --font-mono: "Iosevka Extended", monospace;
  --font-mono-size: 0.90em;

  --font-color: #515151;
  --font-color-dimmed: color-mix(in oklab, var(--font-color) 70%, white);
  --font-color-strong: #333;
  --background-color: #fafafa;
  --code-bg-color: #f0f0f0; /* Copy of value from highlightjs CSS, keep it in sync. */

  --accent-color: #ab5656;
  --accent-color-lighter: color-mix(in oklab, var(--accent-color) 70%, white);

  --code-fg-color: var(--accent-color);
}

@media (prefers-color-scheme: dark) {
  :root {
    --font-color: #c9c9c9;
    --font-color-dimmed: color-mix(in oklab, var(--font-color) 70%, black);
    --font-color-strong: #e0e0e0;
    --background-color: #1a1a1a;
    --code-bg-color: #202329; /* Copy of value from highlightjs CSS, keep it in sync. */
  }
}

body {
  max-width: 860px;
  margin: 0 auto;
  padding: 20px;
  font-family: var(--font-main);
  font-weight: normal;
  font-size: var(--font-main-size);
  color: var(--font-color);
  background-color: var(--background-color);
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--font-color-strong);
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  line-height: 1.2;
}
h1 {
  margin-top: 1em;
}

h1::before, h2::before, h3::before, h4::before, h5::before, h6::before {
  color: var(--accent-color);
  font-family: var(--font-mono);
  margin-right: 0.4em;
}
h2::before { content: "#"; }
h3::before { content: "##"; }
h4::before { content: "###"; }
h5::before { content: "####"; }
h6::before { content: "#####"; }

strong, b {
  color: var(--font-color-strong);
}

.accented {
  color: var(--accent-color);
}

a {
  color: var(--accent-color);
  text-decoration: underline var(--accent-color) 2px;
  &:hover {
    color: var(--accent-color-lighter);
  }
}

/* Remove default <p> margins in lists since they mess things up,
   but keep them between two <p>s. */
li > p {
  margin: 0;
  & + p {
    margin-top: 0.5rem;
  }
}

figure {
  text-align: center;

  & img {
    max-width: 100%;
    height: auto;
  }
}

code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-weight: normal;
  font-size: var(--font-mono-size);
  line-height: 1.4;

  /* If not a code block (which we style fully), apply simple styling. */
  &:not(.code-block *) {
    background: var(--code-bg-color);
    color: var(--code-fg-color);
    padding: 0em 0.25em;
  }
}

.code-block {
  margin: 1rem 0;
  overflow-x: hidden;

  & .code-block-info {
    padding-left: 0.5em;
    font-size: 0.8em;

    --augmenting-color: black;
    @media (prefers-color-scheme: dark) { --augmenting-color: white; }
    background: color-mix(in oklab, var(--code-bg-color) 95%, var(--augmenting-color));
    color: color-mix(in oklab, var(--code-bg-color) 50%, var(--augmenting-color));
  }

  & pre {
    margin: 0;
  }
}

.code-block {
  code.language-ascii-diagram {
    .hljs-symbol {
      font-weight: bold;
    }
  }
}

header.headline {
  .heading-title {
    display: flex;
    align-items: baseline;
    gap: 0.5em;

    .heading-anchor-link {
      vertical-align: middle;
      text-decoration: none;
      filter: grayscale(1);
      opacity: 0;
    }

    &:hover {
      .heading-anchor-link {
        opacity: 0.7;
      }
    }
  }
}

header#post-header {
  margin-bottom: 3rem;

  &> :not(h1) {
    margin: 0px;
  }

  &> h1 {
    margin-bottom: 0px;
  }

  #post-date {
    margin-top: 0.5em;
    color: var(--font-color-dimmed);
  }
}

a.post-entry {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  margin-bottom: 0.5rem;

  @media (max-width: 768px) {
    flex-direction: column;
    align-items: flex-start;
    gap: 0rem;
    margin-bottom: 1.5rem;
  }

  & time {
    white-space: nowrap;
    color: var(--font-color-dimmed);
    &::after {
      content: ";";
      margin-left: 0.5rem;
      color: var(--accent-color);
      font-weight: bold;
    }
  }

  & .post-entry-title {
    margin: 0;
    font-size: inherit;
    color: var(--font-color-strong);
  }
  &:hover .post-entry-title {
    color: var(--link-hover-color);
  }
}

.heading-date {
  color: var(--font-color-dimmed);
}

#postamble {
  color: var(--font-color-dimmed);
  font-size: 0.9rem;
  margin-top: 4rem;
  border-top: 1px solid;

  .postamble-post {
    margin-top: 1rem;
    p { margin-top: 0.5rem }
  }
}

#footnotes {
  color: var(--font-color-dimmed);
  font-size: 0.9rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-top: 2rem;
  position: relative;

  .footnotes {
    display: none;
  }

  .footdef {
    display: flex;
    gap: 0.4em;

    .footpara {
      margin: 0;
    }
  }

  &::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 5rem;
    height: 1px; /* border thickness */
    background-color: var(--font-color-dimmed);
  }
}

.footref {
  text-decoration: none;
  font-weight: bold;
}

.footnum, .footref {
  &::before { content: "["; }
  &::after { content: "]"; }
}


blockquote {
  color: var(--font-color-dimmed);
  font-style: italic;
  margin-left: 0.5rem;
  padding-left: 1rem;
  position: relative;
  overflow: hidden;

  p { margin: 0.5rem }
  /* p + p { margin-top: 1rem; } */

  &::before, &::after{
    position: absolute;
    color: var(--accent-color);
  }

  &::after {
    content: "";
    left: 0px;
    top: 0px;
    width: 4px;
    height: 100%;
    background-color: currentColor;
  }
}