body {
  margin: 0;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  flex-direction: column;
  text-align: center;
}

.container {
  max-width: 600px;
  width: 100%;
}

#scoreboard,
#timer {
  font-size: 1.5rem;
  margin: 10px 0;
}

#game-area {
  position: relative;
  width: 100%;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
}

.star {
  position: absolute;
  font-size: 2rem;
  cursor: pointer;
  user-select: none;
  transition: transform 0.2s ease;
}

.star:active {
  transform: scale(1.5);
}

#game-over {
  background: rgba(0, 0, 0, 0.7);
  padding: 20px;
  border-radius: 12px;
}

.hidden {
  display: none;
}

button {
  padding: 10px 20px;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  background-color: #4e54c8;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #3b3f99;
}