:root {
  color-scheme: light;
  --background: #f7f7f4;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #667085;
  --accent: #2f7d63;
  --border: #e3e4df;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 20px 72px;
}

nav {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

a:hover {
  text-decoration: underline;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.05;
}

h2 {
  margin-top: 32px;
  font-size: 1.25rem;
}

p,
li {
  color: var(--muted);
}

ul {
  padding-left: 1.2rem;
}

.lead {
  font-size: 1.1rem;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
}