:root {
  --bg: #fbfcf7;
  --surface: #fff;
  --ink: #111a16;
  --muted: #637068;
  --line: #dce5de;
  --green: #1f8c68;
  --green-deep: #0c684b;
  color-scheme: light;
  font-family:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 50% 0%, rgba(31, 140, 104, 0.08), transparent 34rem),
    var(--bg);
  color: var(--ink);
}

a {
  color: var(--green-deep);
  font-weight: 800;
}

.page-shell {
  width: min(980px, calc(100% - 36px));
  margin: 0 auto;
  padding: 34px 0 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 950;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
}

.top-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.top-links a {
  color: var(--muted);
  text-decoration: none;
}

.hero,
.content-card,
.link-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.hero {
  padding: clamp(28px, 5vw, 58px);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green-deep);
  font-size: 0.82rem;
  font-weight: 950;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin: 0 0 16px;
  font-size: clamp(2.35rem, 6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.34rem);
  line-height: 1.56;
}

.content-card {
  margin-top: 18px;
  padding: clamp(24px, 4vw, 44px);
  font-size: 1.06rem;
  line-height: 1.72;
}

.content-card h2 {
  margin-top: 1.9rem;
  font-size: clamp(1.5rem, 3vw, 2.35rem);
  letter-spacing: -0.04em;
}

.content-card h2:first-child {
  margin-top: 0;
}

.content-card li {
  margin: 0.45rem 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.link-card {
  padding: 20px;
  text-decoration: none;
}

.link-card strong {
  display: block;
  color: var(--ink);
  margin-bottom: 8px;
}

.link-card span {
  color: var(--muted);
  font-weight: 600;
  line-height: 1.45;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
  color: var(--muted);
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}