body {
  margin: 0;
  background: radial-gradient(circle at top, #101820, #05080c);
  font-family: 'Segoe UI', sans-serif;
  color: #d9fff4;
}

.hero {
  text-align: center;
  margin-top: 20vh;
}

h1 {
  font-size: 64px;
  color: #00ff9f;
  text-shadow: 0 0 25px rgba(0,255,159,0.6);
}

.enter-btn {
  padding: 15px 40px;
  background: #00ff9f;
  color: #000;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
}

.enter-btn:hover {
  box-shadow: 0 0 25px rgba(0,255,159,0.7);
}