* {
  box-sizing: border-box;
}

:root {
  --text: #1a1a1a;
  --text-muted: #555;
  --link: #337ab7;
  --link-hover: #23527c;
  --bg: #ffffff;
  --border: #eee;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e0e0e0;
    --text-muted: #a3a3a3;
    --link: #90caf9;
    --link-hover: #64b5f6;
    --bg: #121212;
    --border: #444;
  }
}

html {
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  padding: 16px;
  font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui,
    helvetica neue, helvetica, Ubuntu, roboto, noto, arial, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  max-width: 70ch;
  margin-left: auto;
  margin-right: auto;
}

.container {
  margin-bottom: 2em;
}

.symbol {
  font-size: 1.5rem;
  margin-bottom: 1em;
  opacity: 0.7;
}

h1 {
  font-family: inherit;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 1em;
}

h2 {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 1.5em 0 0.5em;
}

.intro {
  margin: 0 0 1em;
}

ul {
  list-style-type: disc;
  padding-left: 2em;
  margin: 1em 0;
}

li {
  margin: 0.5em 0;
}

li::before {
  display: none;
}

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

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.contact {
  margin-top: 2em;
  padding-top: 1em;
  border-top: 1px solid var(--border);
  font-size: 0.9em;
  color: var(--text-muted);
}

.contact a {
  color: var(--text);
  font-weight: 500;
}

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

.time {
  margin-top: 0.5em;
  font-size: 0.9em;
  color: var(--text-muted);
}