:root {
  --ink: #1a2233;
  --muted: #5b6472;
  --accent: #1f6f5c;
  --accent-light: #eaf4f1;
  --border: #e4e7ec;
  --max: 760px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  line-height: 1.6;
  background: #fff;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.site-header nav.wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 900px;
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-links a {
  margin-left: 20px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links a:hover { color: var(--accent); }

main.wrap { padding: 40px 20px 60px; max-width: 900px; }

.hero { text-align: center; padding: 40px 0 20px; }
.hero h1 { font-size: 2rem; margin-bottom: 8px; }
.hero p { color: var(--muted); margin-bottom: 24px; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 12px 22px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
}

.post-list { margin-top: 30px; }

.post-card {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}

.post-card h3 { margin: 6px 0; }
.post-card a { color: var(--ink); text-decoration: none; }
.post-card a:hover { color: var(--accent); }

.post-category {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  font-weight: 600;
  margin: 0;
}

.post-meta { color: var(--muted); font-size: 0.9rem; }

.post-hero-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 16px 0 8px;
  display: block;
}

.post h1 { font-size: 2rem; margin: 6px 0 4px; }
.post-body { margin-top: 24px; }
.post-body h2 { margin-top: 36px; }

.cta-box {
  background: var(--accent-light);
  border-radius: 10px;
  padding: 28px;
  margin-top: 48px;
  text-align: center;
}

.cta-box h3 { margin-top: 0; }

.lead-page { max-width: 560px; margin: 0 auto; text-align: center; padding: 20px 0; }
.lead-page h1 { font-size: 1.8rem; }
.form-note { color: var(--muted); font-size: 0.85rem; margin-top: 16px; }

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  padding: 24px 0 40px;
  text-align: center;
}

.site-footer a { color: var(--muted); }