body {
  font-family: "Segoe UI", sans-serif;
  background-color: #f9f9f9;
  color: #333;
  margin: 0;
}

header {
  background-color: #d50032; /* Sopra Steria red */
  color: white;
  padding: 1.5em;
  text-align: center;
}

nav {
  margin-top: 10px;
}

nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 2em;
}

.hero {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 2em;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}