body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f8f9;
}
header {
  background: #064635;
  color: white;
  padding: 10px;
  text-align: center;
}
.logo {
  max-height: 60px;
}
nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
}
nav li {
  margin: 0 15px;
}
nav a {
  color: white;
  text-decoration: none;
}
.hero {
  background: url('../images/banner.jpg') no-repeat center center/cover;
  padding: 100px 20px;
  text-align: center;
  color: white;
}
.features {
  display: flex;
  justify-content: space-around;
  padding: 20px;
}
.features div {
  background: white;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  flex: 1;
  margin: 10px;
}
footer {
  text-align: center;
  padding: 15px;
  background: #064635;
  color: white;
}