:root {
  --main-bg-color: #fff;
  --main-fg-color: #000;
  --main-link-color: #000;
  --main-link-hover-color: #000;
  --main-hero-color: #000;
}

@media (prefers-color-scheme: dark) {
  :root {
    --main-bg-color: #111;
    --main-fg-color: #fff;
    --main-link-color: #fff;
    --main-link-hover-color: #fff;
    --main-hero-color: #fff;
  }
}

html {
  font-family: "Radio Canada", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

body {
  background: var(--main-bg-color);
  color: var(--main-fg-color);
  display: grid;
  padding: 0;
  margin: 0;
}

h1, h2, h3, h4, h5, h6 {
  padding: 0;
  padding-bottom: 0.3em;
  margin: 0;
}

h1 { font-size: 2.5em; }
h2 { font-size: 2.4em; }
h3 { font-size: 2.3em; }
h4 { font-size: 2.2em; }
h5 { font-size: 2.1em; }
h6 { font-size: 2em; }

blockquote, li, p {
  line-height: 1.5em;
  font-size: 1.1em;
}

blockquote {
  text-decoration: none;
  padding: 1em;
  margin: 0;
}

p, ol, ul {
  margin: 0;
  margin-bottom: 1em;
}

ol { list-style: decimal; }
ul { list-style: inherit; }

a:link, a:visited {
  text-decoration: underline;
  color: var(--main-link-color);
}

a:hover {
  color: var(--main-link-hover-color);
}

div.container {
  display: grid;
}

nav.main {
  position: absolute;
  top: 0;
}

nav.main > ul {
  list-style: none;
  padding: 0;
  margin: 1em;
}

nav.main > ul > li {
  display: inline-block;
  font-size: 1em;
  padding: 0;
}

nav.main > ul > li > a {
  border: 1px solid var(--main-fg-color);
  text-decoration: none;
  padding: 0.3em 1em;
}

nav.main > ul > li > a:hover {
  background: var(--main-fg-color);
  color: var(--main-bg-color);
}

div.hero > h1 {
  color: var(--main-hero-color);
}

div.posts {
  display: grid;
}

div.posts > ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

div.post {
  display: grid;
}

div.post > header > h1 {
  padding: 0;
  color: var(--main-hero-color);
}

div.post > header > h2 {
  font-weight: normal;
  font-size: 1.1em;
  margin-top: 0.3em;
}

div.post > h2 {
  margin-top: 1em;
}

@media only screen and (min-width: 969px) {
  body {
    margin-top: 8em;
  }

  div.container {
    margin: 0 auto;
    width: 780px;
  }

  div.hero {
    margin-bottom: 4em;
  }

  div.post > header {
    padding-bottom: 2em;
  }

  div.post > header > h1 {
    font-size: 3em;
  }
}

@media only screen and (max-width: 968px) {
  body {
    margin-top: 4em;
  }

  div.container {
    padding: 0 1em;
  }

  div.post > header {
    margin-bottom: 2em;
  }

  div.post > header > h1 > a:link,
  div.post > header > h1 > a:visited {
    text-underline-offset: auto;
  }
}