body {
  font-family: sans-serif;
  margin: 0;
  background: #f5faff;
  color: #333;
}
header {
  background: #e1ecff;
  padding: 1rem;
  text-align: center;
}
header h1 {
  margin: 0;
  color: #2c7be5;
}
nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #333;
}
.hero {
  text-align: center;
  padding: 2rem;
  background: #d7e9ff;
}
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: #2c7be5;
  color: white;
  text-decoration: none;
  border-radius: 25px;
  margin-top: 1rem;
}
.features {
  display: flex;
  justify-content: space-around;
  padding: 2rem;
}
.features article {
  width: 30%;
  background: white;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  text-align: center;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #e1ecff;
  font-size: 0.9rem;
}