body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f9f9f9;
  color: #000066;
  margin: 0;
  padding: 0;
}
header, section, footer {
  padding: 40px 20px;
  max-width: 1200px;
  margin: auto;
}
header {
  background-color: #ffffcc;
  text-align: center;
}
h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5em;
}
h2 {
  color: #000066;
}
.cta-button {
  background-color: #000066;
  color: #ffffcc;
  padding: 12px 24px;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  border-radius: 8px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.card {
  background: #ffffff;
  border: 1px solid #ddd;
  border-radius: 12px;
  padding: 20px;
}
.catalog-links a {
  display: block;
  margin: 10px 0;
  color: #000066;
}
footer {
  text-align: center;
  font-size: 0.9em;
  color: #666;
}