:root {
  --bg: #fafafa;
  --fg: #111;
  --panel: #ffffff;
  --muted: #444;
  --line: #d0d6f5;
  --brand: #4a6cf7;
}

*,*:before,*:after { box-sizing: border-box; }

html,body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Inter,sans-serif;
  line-height: 1.65;
  padding: 24px;
}

main.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px;
  background: var(--panel);
  border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: 0 4px 12px rgba(0,0,0,.08);
}

h1 {
  margin-top: 0;
  font-size: 28px;
  font-weight: 700;
  color: var(--fg);
}

h2 {
  margin-top: 24px;
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
}

p,ul,li {
  font-size: 15px;
  color: var(--muted);
}

ul {
  padding-left: 20px;
  margin: 12px 0;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

strong {
  font-weight: 600;
}

footer {
  margin-top: 40px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}