body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #1a3d5d;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header img {
  height: 50px;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
}
nav ul li a {
  color: #fff;
  text-decoration: none;
}
.hero {
  background: #e5f1fb;
  padding: 2rem;
  text-align: center;
}
.about, .services, .contact {
  padding: 2rem;
}
.btn-primary, .btn-secondary {
  padding: 0.75rem 1.5rem;
  margin: 1rem 0.5rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-weight: bold;
}
.btn-primary {
  background: #1a3d5d;
  color: #fff;
}
.btn-secondary {
  background: #fff;
  border: 2px solid #1a3d5d;
  color: #1a3d5d;
}
footer {
  background: #1a3d5d;
  color: #fff;
  text-align: center;
  padding: 1rem;
}