:root {
  color-scheme: light;
  --ink: #1d2520;
  --muted: #5d6a62;
  --line: #d8e0d8;
  --accent: #2f7c5f;
  --accent-dark: #205b45;
  --bg: #f7f9f6;
  --panel: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

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

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.nav,
.container {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.brand {
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
}

.nav-links {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

.hero {
  padding: 64px 0 40px;
}

.hero h1 {
  max-width: 820px;
  margin: 0 0 18px;
  font-size: clamp(36px, 7vw, 72px);
  line-height: 1;
}

.lede {
  max-width: 720px;
  color: var(--muted);
  font-size: 19px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  padding: 28px 0 60px;
}

.card {
  min-height: 220px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.card h2,
.card h3 {
  margin-top: 0;
}

.button {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 6px;
  color: #ffffff;
  background: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.article {
  max-width: 820px;
  padding: 48px 0 72px;
}

.article h1 {
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.05;
}

.disclosure,
.note {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
}