:root {
  --ink: #1a1a1a;
  --muted: #5a5a5a;
  --line: #e6e6e6;
  --accent: #0b5e3b;
  --accent-light: #eef6f1;
  --bg: #faf9f7;
  --white: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
nav {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 960px;
  margin: 0 auto;
}
nav .logo {
  font-weight: 600;
  color: var(--accent);
  font-size: 1.15rem;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.95rem;
}
nav ul li a { color: var(--ink); }
header.hero {
  background: var(--accent);
  color: #fff;
  padding: 64px 24px 48px;
  text-align: center;
}
header.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  max-width: 720px;
  margin: 0 auto 16px;
  line-height: 1.2;
}
header.hero p {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
  opacity: 0.95;
  font-family: system-ui, -apple-system, sans-serif;
}
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
h2 {
  font-size: 1.5rem;
  margin: 2em 0 0.6em;
  color: var(--accent);
}
h3 {
  font-size: 1.2rem;
  margin: 1.6em 0 0.5em;
}
p, li { font-size: 1.05rem; }
ul, ol { margin: 0.4em 0 1.2em 1.5em; }
li { margin-bottom: 0.4em; }
.callout {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 18px 22px;
  margin: 1.6em 0;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.98rem;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 2em 0;
}
.card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 24px;
  border-radius: 4px;
}
.card h3 { margin-top: 0; color: var(--accent); }
.card p { font-family: system-ui, -apple-system, sans-serif; font-size: 0.98rem; }
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0 1.8em;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.95rem;
}
th, td {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}
th { background: #f3f3f1; font-weight: 600; }
.note {
  font-size: 0.9rem;
  color: var(--muted);
  font-family: system-ui, -apple-system, sans-serif;
  margin-top: 0.5em;
}
footer {
  border-top: 1px solid var(--line);
  padding: 32px 24px;
  font-size: 0.85rem;
  color: var(--muted);
  font-family: system-ui, -apple-system, sans-serif;
  text-align: center;
  background: var(--white);
}
footer a { color: var(--accent); }
@media (max-width: 640px) {
  nav { flex-direction: column; gap: 12px; }
  nav ul { gap: 16px; }
}