:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #334155;
  --accent: #0ea5e9;
  --border: #dbe3ef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

main {
  max-width: 840px;
  margin: 32px auto;
  padding: 0 16px 32px;
}

article {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

h2 {
  margin: 24px 0 8px;
  font-size: 18px;
}

p,
li {
  color: var(--muted);
  line-height: 1.55;
  font-size: 15px;
}

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

.meta {
  margin: 0 0 18px;
}

.nav {
  margin-top: 24px;
  font-size: 14px;
}