* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #1a1a1a;
  background: #fafafa;
  line-height: 1.6;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
  background: #fff;
  border-bottom: 1px solid #eaeaea;
}
header a { text-decoration: none; color: #1a1a1a; font-weight: 600; }
nav a { margin-left: 1.5rem; color: #555; font-weight: 400; }
nav a:hover { color: #000; }
main {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem 2rem;
}
h1 { font-size: 2rem; }
h2 { font-size: 1.25rem; margin-top: 2rem; }
footer {
  text-align: center;
  padding: 2rem;
  color: #888;
  font-size: 0.9rem;
}
footer a { color: #888; margin: 0 0.5rem; }

/* Homepage */
.home main {
  padding: 4rem 2rem;
  text-align: center;
}
.home h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.home p.subtitle { color: #666; font-size: 1.1rem; }