* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
  color: #24292f;
  background: #ffffff;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  flex: none;
  align-self: flex-start;
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid #e1e4e8;
  padding: 16px;
  background: #f6f8fa;
  overflow-y: auto;
}

.sidebar .brand {
  font-weight: 700;
  margin-bottom: 12px;
}

.sidebar .brand a {
  color: #24292f;
  text-decoration: none;
}

.sidebar ul {
  list-style: none;
  margin: 0;
  padding-left: 12px;
}

.sidebar > ul {
  padding-left: 0;
}

.sidebar li.dir > span {
  display: block;
  font-weight: 600;
  color: #57606a;
  margin-top: 8px;
}

.sidebar a {
  display: block;
  padding: 4px 6px;
  border-radius: 6px;
  color: #0969da;
  text-decoration: none;
  font-size: 14px;
}

.sidebar a:hover {
  background: #eaeef2;
}

.sidebar a.active {
  background: #ddf4ff;
  font-weight: 600;
}

.content {
  flex: 1;
  padding: 32px 48px;
  max-width: 900px;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  padding-bottom: 6px;
}

.markdown-body pre {
  background: #f6f8fa;
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
}

.markdown-body code {
  background: #f6f8fa;
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 90%;
}

.markdown-body pre code {
  background: none;
  padding: 0;
}

.markdown-body blockquote {
  border-left: 4px solid #d0d7de;
  margin: 0;
  padding-left: 12px;
  color: #57606a;
}

.markdown-body table {
  border-collapse: collapse;
  width: 100%;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid #d0d7de;
  padding: 6px 12px;
}

.markdown-body img {
  max-width: 100%;
}

.markdown-body section {
  scroll-margin-top: 24px;
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid #e1e4e8;
}

.markdown-body section:last-child,
.markdown-body section#index {
  border-bottom: none;
}