:root {
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #656d76;
  --line: #d8dee4;
  --accent: #395a7f;
  --code-bg: #f6f8fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font: 15px/1.6 -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

header {
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  margin-bottom: 32px;
}

header .wrap { display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap; }

.brand {
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: 0.01em;
}

nav { margin-left: auto; }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: 14px; }
nav a:hover, nav a.on { color: var(--fg); }

h1 { font-size: 22px; font-weight: 600; margin: 0 0 12px; }
h2 { font-size: 17px; font-weight: 600; margin: 28px 0 8px; }
p { margin: 0 0 12px; }

ul { margin: 0 0 12px; padding-left: 20px; }
li { margin-bottom: 4px; }

.muted { color: var(--muted); }
.small { font-size: 13px; }

a { color: var(--accent); }

table { border-collapse: collapse; width: 100%; font-size: 14px; margin-bottom: 16px; }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); }
th { font-weight: 600; color: var(--muted); font-size: 13px; }

code, pre {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 12px 14px;
  overflow-x: auto;
  margin: 0 0 16px;
}

code { background: var(--code-bg); padding: 1px 4px; border-radius: 3px; }
pre code { background: none; padding: 0; }

footer {
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding: 16px 0 40px;
  color: var(--muted);
  font-size: 13px;
}