* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.6;
  color: #222;
}

.wrap {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}

header {
  padding-top: 60px;
}

h1 {
  font-size: 42px;
  margin-bottom: 10px;
}

.tagline {
  font-size: 18px;
  opacity: 0.8;
}

h2 {
  margin-top: 40px;
}

footer {
  opacity: 0.6;
  padding-bottom: 60px;
}