:root {
  --bg: #fbfaf7;
  --text: #1d2420;
  --muted: #55605a;
  --accent: #1f5f4a;
  --line: #dcdad2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141916;
    --text: #ecf0ed;
    --muted: #a4afa9;
    --accent: #6fd0a8;
    --line: #2d3731;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 18px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
main, header, footer { max-width: 40rem; margin: 0 auto; padding: 0 16px; }
header { padding-top: 28px; }
.name { font-weight: 700; font-size: 1.15rem; color: var(--accent); text-decoration: none; }
h1 { font-size: clamp(2rem, 6vw, 2.8rem); line-height: 1.15; margin: 48px 0 16px; }
h2 { font-size: 1.3rem; margin: 40px 0 8px; }
p { margin: 0 0 16px; }
.lead { font-size: 1.2rem; color: var(--muted); }
ul { padding-left: 1.2rem; margin: 0 0 16px; }
li { margin-bottom: 6px; }
a { color: var(--accent); }
.promise {
  border-left: 4px solid var(--accent);
  padding: 4px 0 4px 16px;
  margin: 40px 0 0;
  font-size: 1.2rem;
  font-weight: 600;
}
footer {
  margin-top: 64px;
  padding-top: 20px;
  padding-bottom: 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}
footer a { color: var(--muted); }
.small { color: var(--muted); font-size: 0.9rem; }