:root {
  --green: #00804f;
  --green-dark: #005a37;
  --yellow: #ffdf00;
  --blue: #002776;
  --ink: #1b1f23;
  --muted: #57606a;
  --bg: #ffffff;
  --bg-alt: #f4f8f6;
  --border: #e3e8e5;
  --radius: 12px;
}

* { box-sizing: border-box; }

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

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  background: rgba(0, 128, 79, 0.08);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  font-size: 0.92em;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

pre {
  background: #0e2420;
  color: #d9f2e6;
  padding: 16px 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.86rem;
}

pre code { background: none; padding: 0; color: inherit; }

/* ---------- topbar ---------- */
.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
}

.brand:hover { text-decoration: none; }

.nav { display: flex; gap: 20px; }

.nav a { color: var(--muted); font-weight: 500; }
.nav a:hover { color: var(--green); text-decoration: none; }

/* ---------- hero ---------- */
.hero {
  padding: 72px 0 64px;
  background:
    radial-gradient(1200px 400px at 80% -10%, rgba(0, 156, 59, 0.12), transparent),
    radial-gradient(800px 300px at 10% 110%, rgba(255, 223, 0, 0.15), transparent);
  text-align: center;
}

.badge {
  display: inline-block;
  background: rgba(0, 128, 79, 0.1);
  color: var(--green-dark);
  border: 1px solid rgba(0, 128, 79, 0.25);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.85rem;
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.15;
  margin: 18px 0 14px;
}

.lead {
  max-width: 680px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 1.1rem;
}

.actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn:hover { text-decoration: none; }

.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); }

.btn-ghost { border-color: var(--border); color: var(--ink); background: var(--bg); }
.btn-ghost:hover { border-color: var(--green); color: var(--green); }

/* ---------- sections ---------- */
.section { padding: 56px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { font-size: 1.6rem; margin: 0 0 20px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 10px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.card-link { color: inherit; transition: border-color 0.15s, box-shadow 0.15s; }
.card-link:hover {
  text-decoration: none;
  border-color: var(--green);
  box-shadow: 0 4px 16px rgba(0, 90, 55, 0.08);
}
.card-link h3 { color: var(--green); }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner p { margin: 4px 0; }