:root {
  --font-family: "Open Sans", Arial, sans-serif;
  --page-bg: #f6f8fa;
  --surface: #ffffff;
  --surface-muted: #f2f5f7;
  --text: #1f2a33;
  --text-muted: #5f6f7a;
  --border: #d8e0e6;
  --link: #59636c;
  --focus: #1d6fa5;
  --radius: 6px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
}

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

a:hover {
  text-decoration: underline;
}

code,
pre {
  font-family: "Courier New", Courier, monospace;
}

pre {
  overflow-x: auto;
  margin: 10px 0 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fbfcfd;
  color: #14212b;
  font-size: 13px;
}

code.inline {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: #fbfcfd;
}

table {
  width: 100%;
  margin-top: 10px;
  border-collapse: collapse;
  background: var(--surface);
}

th,
td {
  padding: 8px 10px;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  font-weight: 600;
  background: var(--surface-muted);
}