body {
  margin: 0;
  font-family: sans-serif;
  color: #222222;
  background-color: #f5f7fb;
}

header {
  padding: 24px;
  background-color: #1f2937;
  color: white;
}

nav a {
  margin-right: 16px;
  color: white;
  text-decoration: none;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 24px;
}

.hero {
  padding: 40px;
  background-color: white;
  border-radius: 16px;
}

.button {
  display: inline-block;
  margin-top: 16px;
  padding: 12px 20px;
  color: white;
  background-color: #2563eb;
  border-radius: 8px;
  text-decoration: none;
}

footer {
  padding: 24px;
  text-align: center;
}

.card {
  margin-bottom: 20px;
  padding: 24px;
  background-color: white;
  border-radius: 12px;
}