body {
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #1f1f2e, #3b3b5f);
  color: #EEEEEE;
  text-align: center;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

#home, #game {
  display: none;
}

#home.active, #game.active {
  display: block;
}

.main-title {
  font-size: 48px;
  margin-bottom: 10px;
}

.tagline {
  font-size: 20px;
  margin-bottom: 30px;
  color: #ccc;
}

.play-btn {
  background: #00ADB5;
  color: white;
  padding: 14px 28px;
  font-size: 20px;
  border-radius: 8px;
  border: none;
  margin: 12px;
  cursor: pointer;
  transition: background 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.play-btn:hover {
  background: #02c4cf;
}

button {
  background: none;
  border: none;
  margin: 10px;
  cursor: pointer;
}

button img {
  width: 80px;
  transition: transform 0.2s ease;
}

button:hover img {
  transform: scale(1.1);
}

pre#output {
  background: #222;
  padding: 16px;
  border-radius: 10px;
  width: 90%;
  max-width: 600px;
  margin: 30px auto 10px;
  font-size: 16px;
  color: #00ffae;
  white-space: pre-wrap;
}