body {
  font:
    16px/1.7 system-ui,
    sans-serif;
  color: #22354c;
  background: #f5f8fc;
  max-width: 900px;
  margin: auto;
  padding: 24px;
}
main {
  background: white;
  padding: 28px;
  border: 1px solid #d4deeb;
  border-radius: 12px;
  margin: 20px 0;
}
a {
  color: #064dc1;
  overflow-wrap: anywhere;
}
h1 {
  font-size: 2rem;
  line-height: 1.2;
}
h2 {
  font-size: 1.2rem;
  margin-top: 28px;
}
.badge {
  background: #e7f0ff;
  color: #074ea8;
  padding: 6px 10px;
  border-radius: 6px;
}
a:focus-visible {
  outline: 3px solid #0964f5;
  outline-offset: 4px;
}
footer {
  padding-bottom: 24px;
}
@media (max-width: 500px) {
  body {
    padding: 14px;
  }
  main {
    padding: 18px;
  }
  h1 {
    font-size: 1.6rem;
  }
}