:root {
  --font-family: "Menlo", "Monaco", "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace, serif;
}

/* Layout */
body {
  font-family: var(--font-family);
  display: flex;
  flex-flow: row;
  margin: 0;
}

body > header {
  text-align: center;
}

body > header h1 {
  width: 1.5em;
  font-size: 10em;
  margin: 0 auto;
}

body > header a {
  text-decoration: none;
}

#main {
  flex: auto;
  min-height: 100vh;
  max-width: 820px;
  overflow: hidden;
  display: flex;
  flex-flow: column;
}

#main > nav {
  padding: 15px;
  text-align: center;
}

#main > main {
  padding: 15px;
  flex: 1;
  margin-right: 25px;
}

#main > footer {
  padding: 15px;
  padding-top: 50px;
}

hr {
  border: none;
  border-top: 1px solid gray;
  max-width: 25px;
  margin: 35px auto;
}

.muted {
  color: gray;
}

/* Typography */
article > header {
  margin-bottom: 2em;
}

article > header time {
  color: gray;
  white-space: nowrap;
}

article img {
  max-width: 100%;
}

article video {
  max-width: 100%;
}

article .footnotes {
  font-size: 0.75em;
}

/* Code blocks — contained, scrollable, monokai */
pre {
  font-family: 'Fira Code', 'Nanum Gothic Coding', monospace;
  background-color: #272822;
  color: #f8f8f2;
  padding: 15px;
  overflow: auto;
  tab-size: 2;
  -moz-tab-size: 2;
}

.highlight {
  overflow-x: auto;
}

.highlight pre {
  margin: 0;
}

p code,
li code {
  color: #930d72;
}

a {
  color: inherit;
}

a:visited {
  color: inherit;
}

kbd {
  display: inline-block;
  padding: 3px 5px;
  font-size: 0.8em;
  line-height: 10px;
  vertical-align: middle;
  border: 1px solid black;
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 black;
  background-color: rgba(0, 0, 0, 0.15);
}

iframe.video {
  border: none;
  width: 100%;
  height: 460px;
}

blockquote {
  border-left: 4px solid #ccc;
  margin: 1.5em 10px;
  padding: 0.5em 10px;
}

/* Article list */
.article-list article > header {
  display: flex;
  flex-flow: row;
  align-items: center;
  margin-bottom: 0;
}

.article-list h3 {
  display: inline-block;
  margin: 0.5em;
}

.article-list small {
  font-weight: normal;
  color: gray;
}

.alt-links {
  float: right;
  color: gray;
  margin: 30px 0;
}

/* Responsive */
@media (max-width: 640px) {
  body {
    flex-direction: column;
  }
  body > header h1 {
    width: auto;
    font-size: 7em;
  }
  #main {
    display: block;
    min-height: 0;
  }
  #main > main {
    margin-right: 0;
  }
  iframe.video {
    height: 260px;
  }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  html {
    background-color: black;
    color: #dfdfdf;
  }
  article img:not([src$=".jpg"]):not([src$=".jpeg"]):not(.opaque) {
    background-color: white;
    border: 5px solid white;
    box-sizing: border-box;
  }
  kbd {
    border-color: white;
    background-color: rgba(255, 255, 255, 0.15);
    box-shadow: inset 0 -1px 0 white;
  }
}