body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f8f9fa;
  color: #333;
}
header {
  background: #0b2149;
  color: #fff;
  padding: 15px 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}
header nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}
.banner {
  background: #1e88e5;
  color: white;
  text-align: center;
  padding: 100px 20px;
}
.banner h1 {
  font-size: 2.5rem;
}
.btn {
  background: #43a047;
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 8px;
  margin-top: 20px;
  display: inline-block;
}
.servicos {
  padding: 50px;
  text-align: center;
}
.cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}
.card {
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0px 4px 10px rgba(0,0,0,0.1);
  width: 250px;
}
footer {
  background: #0b2149;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 30px;
}