body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #006400, #228b22);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  margin: 0;
  padding: 2rem;
}

.container {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  padding: 2rem;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.2rem;
}

.tagline {
  margin-bottom: 2rem;
  font-style: italic;
  opacity: 0.9;
}

#leaderboard {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

#leaderboard th, #leaderboard td {
  padding: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.3);
}

#leaderboard th {
  color: #ffd700;
}

#player-section {
  margin: 1rem 0;
}

#player-name {
  padding: 0.5rem;
  border-radius: 5px;
  border: none;
  width: 70%;
}

#start-btn {
  background: #ffd700;
  color: #000;
  border: none;
  padding: 0.5rem 1rem;
  margin-left: 0.5rem;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.2s ease;
}

#start-btn:hover {
  background: #ffea00;
  transform: scale(1.05);
}

#stats-section {
  margin-top: 2rem;
  background: rgba(0, 0, 0, 0.2);
  padding: 1rem;
  border-radius: 8px;
}

#quiz-section {
  margin-top: 2rem;
  text-align: left;
}

#question-text {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.option-btn {
  display: block;
  background: #fff;
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 0.7rem 1rem;
  margin: 0.4rem 0;
  cursor: pointer;
  transition: 0.2s ease;
  width: 100%;
  text-align: left;
}

.option-btn:hover {
  background: #eee;
}

.option-btn.correct {
  background: #4caf50;
  color: white;
}

.option-btn.wrong {
  background: #f44336;
  color: white;
}

#next-btn {
  background: #ffd700;
  color: #000;
  border: none;
  padding: 0.7rem 1.2rem;
  margin-top: 1rem;
  border-radius: 8px;
  cursor: pointer;
  display: inline-block;
}

#next-btn:hover {
  background: #ffea00;
}

.action-btn {
  background-color: #28a745;
  color: white;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  margin: 8px;
  font-weight: bold;
  transition: background 0.3s;
}

.action-btn:hover {
  background-color: #218838;
}