body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f4f4;
  color: #333;
}
header {
  background: #1f1f1f;
  color: white;
  padding: 20px;
  text-align: center;
}
nav {
  margin-top: 10px;
}
nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
}
section {
  padding: 40px;
  background: white;
  margin: 20px auto;
  max-width: 900px;
  border-radius: 10px;
  box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
}
.hero {
  background: url('https://images.unsplash.com/photo-1588776814546-ec7e3c623de3?fit=crop&w=1350&q=80') no-repeat center center/cover;
  color: white;
  text-shadow: 1px 1px 2px #000;
  padding: 100px 20px;
  text-align: center;
  border-radius: 0;
}
footer {
  background: #1f1f1f;
  color: white;
  text-align: center;
  padding: 15px;
  font-size: 14px;
}