body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f7f9fc;
  color: #333;
}
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}
.logo {
  width: 80px;
  margin-bottom: 0.5rem;
}
.header .subtitle {
  color: #666;
  margin-top: 0.5rem;
}
.cards {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}
.card {
  display: block;
  padding: 1rem 2rem;
  background-color: #fff;
  border-radius: 8px;
  text-decoration: none;
  color: #007bff;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: box-shadow 0.2s ease;
}
.card:hover {
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}
.footer {
  margin-top: 3rem;
  color: #999;
  font-size: 0.9rem;
}