:root {
  --rf-green: #2f8f4e;
  --rf-green-dark: #246e3c;
  --rf-cream: #fffaf0;
  --rf-ink: #1f2a24;
  --rf-muted: #5a6b62;
}

html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--rf-ink);
  background: var(--rf-cream);
  line-height: 1.6;
}

a { color: var(--rf-green-dark); }
a:hover { color: var(--rf-green); }

.navbar-rf {
  background: #fff;
  border-bottom: 1px solid #e8e2d5;
}
.navbar-rf .brand {
  font-weight: 700;
  color: var(--rf-green-dark);
  text-decoration: none;
  font-size: 1.15rem;
}
.navbar-rf .nav-link {
  color: var(--rf-ink);
  font-weight: 500;
}
.navbar-rf .nav-link.active,
.navbar-rf .nav-link:hover { color: var(--rf-green-dark); }

.hero {
  background: linear-gradient(180deg, #fffaf0 0%, #f2efe5 100%);
  padding: 4rem 0 3rem;
}
.hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.hero p.lead {
  font-size: 1.2rem;
  color: var(--rf-muted);
  max-width: 640px;
}

.section { padding: 3.5rem 0; }
.section-alt { background: #fff; }
.section h2 {
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.feature-card {
  background: #fff;
  border: 1px solid #e8e2d5;
  border-radius: 12px;
  padding: 1.5rem;
  height: 100%;
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--rf-green-dark);
}

.btn-rf {
  background: var(--rf-green);
  color: #fff;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
}
.btn-rf:hover { background: var(--rf-green-dark); color: #fff; }

.btn-outline-rf {
  background: transparent;
  color: var(--rf-green-dark);
  border: 2px solid var(--rf-green-dark);
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
}
.btn-outline-rf:hover { background: var(--rf-green-dark); color: #fff; }

.footer {
  background: #1f2a24;
  color: #d7d0bf;
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}
.footer a { color: #fff; text-decoration: none; }
.footer a:hover { color: var(--rf-green); }
.footer .small { color: #8a9187; }

.doc-body {
  max-width: 820px;
  margin: 0 auto;
  background: #fff;
  padding: 2.5rem;
  border-radius: 12px;
  border: 1px solid #e8e2d5;
}
.doc-body h1 { font-size: 2rem; font-weight: 800; }
.doc-body h2 { font-size: 1.35rem; font-weight: 700; margin-top: 2rem; }
.doc-body h3 { font-size: 1.1rem; font-weight: 700; margin-top: 1.5rem; }

.kv { display: grid; grid-template-columns: 200px 1fr; gap: 0.5rem 1.5rem; }
.kv dt { font-weight: 600; color: var(--rf-muted); }