:root {
  --accent: #5fabdc;
  --ink: #293c4b;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
  color: var(--ink);
  line-height: 1.6;
}
.bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 24px;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1;
}
.bar a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.bar a:hover {
  text-decoration: underline;
}
main {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 24px 64px;
}
h1, h2, h3, h4 {
  line-height: 1.25;
  color: #1c2b38;
}
h1 {
  border-bottom: 2px solid #eef2f5;
  padding-bottom: .3em;
}
h2 {
  margin-top: 2em;
  border-bottom: 1px solid #eef2f5;
  padding-bottom: .2em;
}
a {
  color: var(--accent);
}
code {
  background: #f3f5f7;
  border-radius: 5px;
  padding: .12em .4em;
  font-size: .92em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
pre {
  background: #0f1720;
  border-radius: 10px;
  overflow: auto;
  line-height: 1.5;
}
pre code {
  display: block;
  padding: 16px;
  color: #e6edf3;
  background: none;
  border-radius: 0;
}
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
  font-size: .94rem;
}
th, td {
  border: 1px solid #e3e7ea;
  padding: 7px 11px;
  text-align: left;
  vertical-align: top;
}
th {
  background: #f6f8fa;
}
tr:nth-child(even) td {
  background: #fbfcfd;
}
blockquote {
  margin: 1em 0;
  padding: .4em 1em;
  border-left: 4px solid var(--accent);
  background: #f6fafd;
  color: #3a4a57;
}
footer {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px;
  border-top: 1px solid #eee;
  color: #889;
  font-size: .9rem;
}