* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: #0a0a0a;
  color: #f5f5f5;
  line-height: 1.6;
}
a { color: #7dd3fc; }
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #222;
}
.logo { font-weight: 700; font-size: 1.25rem; color: #fff; text-decoration: none; }
.site-header nav a { margin-left: 1rem; text-decoration: none; color: #ccc; }
.site-header nav a:hover { color: #fff; }
.hero { max-width: 640px; margin: 4rem auto; padding: 0 1.5rem; text-align: center; }
.hero h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.lead { color: #aaa; font-size: 1.1rem; }
.btn {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #fff;
  color: #0a0a0a;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}
.content { max-width: 720px; margin: 2rem auto 4rem; padding: 0 1.5rem; }
.content h1 { font-size: 1.75rem; }
.content h2 { font-size: 1.15rem; margin-top: 2rem; }
.content p, .content li { color: #ccc; }
.site-footer {
  text-align: center;
  padding: 2rem 1rem;
  border-top: 1px solid #222;
  color: #888;
  font-size: 0.9rem;
}
.site-footer a { color: #aaa; }