:root {
  color-scheme: light;
  --ink: #102033;
  --muted: #506176;
  --line: #d7e3ef;
  --water: #0f6f8f;
  --bg: #f5fbff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 52px 20px;
}
h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 7vw, 3.3rem);
  line-height: 1.05;
  letter-spacing: 0;
}
h2 {
  margin: 34px 0 10px;
  font-size: 1.25rem;
}
p { margin: 0 0 16px; }
a { color: var(--water); font-weight: 650; }
footer {
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}