:root {
  color-scheme: light dark;
  --bg: #f7f9fc;
  --surface: #ffffff;
  --text: #101722;
  --muted: #5d6a7a;
  --border: #dfe6ee;
  --accent: #1fbe63;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101722;
    --surface: #151f2d;
    --text: #f5f8fc;
    --muted: #a8b3c2;
    --border: #2a3545;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: 28px 18px 56px;
}

article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: clamp(22px, 5vw, 44px);
}

h1,
h2 {
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(30px, 6vw, 44px);
}

h2 {
  margin: 34px 0 10px;
  font-size: 21px;
}

p,
ul {
  margin: 0 0 14px;
}

ul {
  padding-left: 22px;
}

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

.meta {
  color: var(--muted);
  margin-bottom: 28px;
}