body {
  background-color: rgb(10, 10, 10);
  margin: 0;
  padding: 0;
  font-family: "Open Sans", Arial, sans-serif;
  text-align: center;
  color: white;
}
.title {
  font-size: 40px;
  color: #00ffff;
  text-shadow: 2px 2px 5px rgba(0, 255, 255, 0.5);
}
.subtitle {
  font-size: 22px;
  color: #ffeb3b;
  font-style: italic;
}
.mode-selection {
  margin: 20px 0;
}
.btn {
  background-color: rgb(11, 11, 11);
  font-size: 18px;
  color: rgba(255, 200, 255, 1);
  border: 2px solid #00ffff;
  padding: 12px 20px;
  cursor: pointer;
  transition: 0.3s ease;
  margin: 5px;
}
.btn:hover {
  color: rgba(0, 255, 255, 0.8);
  background-color: rgba(0, 255, 255, 0.2);
  transform: scale(1.1);
}
.game-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  padding: 20px;
  margin: 20px auto;
  border: 2px solid rgba(0, 255, 255, 0.5);
  border-radius: 10px;
  max-width: 600px;
  background: rgba(0, 0, 0, 0.5);
}
.player-box {
  padding: 15px;
  border-radius: 8px;
  width: 45%;
}
.single-mode .player-box {
  width: 100%;
}
.hidden {
  display: none;
}
.result-box {
  margin-top: 20px;
  padding: 10px;
  border-radius: 10px;
  border: 2px solid rgba(255, 255, 0, 0.5);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.result-text {
  font-size: 24px;
  font-weight: bold;
  color: rgba(255, 255, 192, 0.9);
}
.scoreboard {
  margin-top: 10px;
}
.score-text {
  font-size: 20px;
  color: rgba(0, 255, 255, 0.8);
}