:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1a1f2e;
  --muted: #5c6478;
  --accent: #2d6a4f;
  --border: #e2e6ef;
  --link: #1b6b4a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419;
    --surface: #171c24;
    --text: #eef1f6;
    --muted: #a8b0c0;
    --accent: #52b788;
    --border: #2a3342;
    --link: #74c69d;
  }
}

* {
  box-sizing: border-box;
}

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

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  margin-bottom: 2rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.2;
}

.updated {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

main {
  padding-bottom: 3rem;
}

section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
}

h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
}

p,
ul {
  margin: 0 0 0.85rem;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.35rem;
}

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

footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.875rem;
}

footer p {
  margin: 0;
}