body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  height: 100vh;
  background-image: url('https://images.unsplash.com/photo-1581092160612-2ec728a7c260?auto=format&fit=crop&w=1950&q=80');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  color: white;
}

.overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  background-color: rgba(0, 0, 0, 0.4);
  padding: 2rem;
  border-radius: 10px;
}

.overlay h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.overlay a {
  font-size: 1.2rem;
  color: #00e676;
  text-decoration: none;
}

.overlay a:hover {
  text-decoration: underline;
}