* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  max-width: 720px;
  margin: 48px auto;
  padding: 0 16px;
  color: #1f2328;
  line-height: 1.55;
  background: #ffffff;
}

h1 { font-size: 32px; margin-bottom: 8px; }
h2 { font-size: 18px; margin-top: 32px; margin-bottom: 8px; }

.lead { font-size: 20px; color: #555; margin-top: 0; }

.cta {
  display: inline-block;
  padding: 12px 24px;
  background: #1f6feb;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  border: none;
}

.cta-disabled {
  background: #d0d7de;
  color: #57606a;
  cursor: not-allowed;
}

a { color: #1f6feb; text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  background: #f6f8fa;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.9em;
}

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid #d0d7de;
  color: #6e7781;
  font-size: 13px;
}

.fineprint {
  font-size: 12px;
  color: #6e7781;
}