:root {
  color-scheme: light;
  --text: #22252a;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2f5d50;
  --bg: #fbfbf9;
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  padding: 0 24px;
  max-width: 760px;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 28px 0 20px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .2px;
  color: var(--text);
  text-decoration: none;
}

nav a {
  margin-left: 18px;
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}

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

.hero { padding: 48px 0 8px; }

h1 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -.2px;
}

h2 {
  margin: 40px 0 12px;
  font-size: 20px;
  font-weight: 600;
}

p { margin: 0 0 14px; }

ul { margin: 0 0 14px; padding-left: 20px; }

li { margin: 4px 0; }

a { color: var(--accent); }

.muted {
  color: var(--muted);
  font-size: 15px;
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-top: 56px;
  padding: 20px 0 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

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

@media (max-width: 520px) {
  h1 { font-size: 26px; }
  nav a { margin: 0 14px 0 0; }
}