:root {
  color-scheme: light;
  --ink: #17212b;
  --muted: #5b6673;
  --line: #d9e0e7;
  --brand: #0d7c66;
  --brand-dark: #075f50;
  --paper: #ffffff;
  --soft: #f4f7f6;
  --accent: #d9f2ea;
}

* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px clamp(20px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--brand-dark);
  font-size: 1.1rem;
  font-weight: 800;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  color: var(--brand-dark);
}

.hero,
.page {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(52px, 8vw, 96px) 24px 40px;
}

.hero {
  min-height: 520px;
  display: grid;
  align-content: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  line-height: 1.15;
}

h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 4.8rem);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

p {
  margin: 0 0 16px;
}

.lead {
  max-width: 720px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 1.2rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--brand);
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  background: var(--brand);
  color: white;
}

.button.secondary {
  background: white;
  color: var(--brand-dark);
}

.section {
  max-width: 980px;
  margin: 0 auto;
  padding: 42px 24px;
}

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

article {
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: 34px;
  align-items: start;
  border-top: 1px solid var(--line);
}

.checklist {
  margin: 0;
  padding: 22px 22px 22px 42px;
  border-radius: 8px;
  background: var(--accent);
}

footer {
  margin-top: 48px;
  padding: 28px 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
}

@media (max-width: 760px) {
  .site-header,
  nav,
  .actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .grid,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}