body.game-fullscreen {
  font-family: 'Roboto', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #0d1b2a, #1b263b);
  overflow-x: hidden;
  overflow-y: auto;
  touch-action: manipulation;
}

.container {
  position: relative;
  text-align: center;
  background: rgba(0, 0, 0, 0.85);
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
  max-width: 800px;
  width: 100%;
  box-sizing: border-box;
  z-index: 1;
  min-height: 100vh;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(0, 255, 255, 0.1), transparent);
  z-index: -1;
}

h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 2rem;
  color: #00ffcc;
  text-shadow: 0 0 10px #00ffcc, 0 0 20px #00ffcc;
  margin-bottom: 20px;
  animation: glow 2s ease-in-out infinite;
}

h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  color: #ff0077;
  text-shadow: 0 0 10px #ff0077;
  margin-bottom: 20px;
}

.selection-screen {
  animation: slideIn 0.8s ease-out;
}

.game-type-btn {
  display: block;
  margin: 15px auto;
  padding: 10px 20px;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.2rem;
  background: linear-gradient(45deg, #ff0077, #ff4d94);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.2s ease;
  box-shadow: 0 0 15px rgba(255, 0, 119, 0.5);
  touch-action: manipulation;
  min-height: 40px;
}

.game-type-btn:hover, .game-type-btn:active {
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(255, 0, 119, 0.8);
}

.stats {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  font-size: 1.1rem;
  color: #00ffcc;
  text-shadow: 0 0 5px #00ffcc;
  margin-bottom: 15px;
}

#progress-bar {
  width: 90%;
  height: 15px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin: 15px auto;
  overflow: hidden;
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

#progress-fill {
  height: 100%;
  background: linear-gradient(45deg, #00ffcc, #00b7eb);
  width: 0;
  transition: width 0.5s ease-in-out;
  box-shadow: 0 0 15px #00ffcc;
}

#question {
  font-family: 'Roboto', sans-serif;
  font-size: 1.2rem;
  color: #fff;
  text-shadow: 0 0 5px #fff;
  margin: 20px 0;
  min-height: 50px;
  line-height: 1.4;
}

.option {
  display: block;
  margin: 10px auto;
  padding: 10px;
  width: 90%;
  font-family: 'Roboto', sans-serif;
  font-size: 1rem;
  background: linear-gradient(45deg, #00b7eb, #007bff);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.2s ease;
  box-shadow: 0 0 10px rgba(0, 183, 235, 0.5);
  touch-action: manipulation;
  min-height: 40px;
}

.option:hover, .option:active {
  transform: scale(1.03);
  box-shadow: 0 0 15px rgba(0, 183, 235, 0.8);
}

.option:disabled {
  background: rgba(255, 255, 255, 0.2);
  cursor: not-allowed;
  box-shadow: none;
}

.option.correct {
  animation: correctAnswer 0.5s ease;
}

.option.wrong {
  animation: shake 0.5s ease;
}

#next-btn {
  padding: 10px 20px;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  background: linear-gradient(45deg, #28a745, #34c759);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.2s ease;
  box-shadow: 0 0 15px rgba(40, 167, 69, 0.5);
  min-height: 40px;
}

#next-btn:hover, #next-btn:active {
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(40, 167, 69, 0.8);
}

#feedback {
  margin-top: 15px;
  font-size: 1rem;
  color: #fff;
  text-shadow: 0 0 5px #fff;
  min-height: 40px;
  line-height: 1.4;
}

.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 5px;
  height: 5px;
  background: #00ffcc;
  border-radius: 50%;
  animation: float 1.5s linear infinite;
  opacity: 0;
}

#leaderboard {
  margin-top: 20px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
}

#leaderboard table {
  width: 100%;
  border-collapse: collapse;
  color: #fff;
  font-size: 1rem;
}

#leaderboard th, #leaderboard td {
  padding: 10px;
  border: 1px solid #00ffcc;
  text-align: left;
}

#leaderboard th {
  background: linear-gradient(45deg, #00b7eb, #007bff);
}

#score-form {
  margin: 20px auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

#score-form label {
  font-family: 'Roboto', sans-serif;
  font-size: 1rem;
  color: #fff;
}

#score-form input {
  padding: 8px;
  font-size: 1rem;
  border-radius: 5px;
  border: none;
  width: 200px;
}

#score-form button {
  padding: 10px 20px;
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  background: linear-gradient(45deg, #ff0077, #ff4d94);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#score-form button:hover {
  transform: scale(1.05);
}

/* Block AdSense Auto Ads */
.google-auto-placed, .adsbygoogle {
  display: none !important;
}

@keyframes glow {
  0%, 100% { text-shadow: 0 0 10px #00ffcc, 0 0 20px #00ffcc; }
  50% { text-shadow: 0 0 15px #00ffcc, 0 0 30px #00ffcc; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes correctAnswer {
  0% { background: linear-gradient(45deg, #28a745, #34c759); }
  100% { background: linear-gradient(45deg, #00b7eb, #007bff); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes float {
  0% { opacity: 0; transform: translateY(0); }
  50% { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(-100px); }
}

@media (max-width: 600px) {
  body.game-fullscreen {
    display: block !important;
    min-height: 100vh;
    overflow-x: hidden;
  }
  .container {
    padding: 15px;
    min-height: 100vh;
    max-width: 100%;
    display: block !important;
  }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.2rem; }
  .game-type-btn, .option, #next-btn, #score-form button {
    font-size: 0.9rem;
    padding: 8px 15px;
    min-height: 35px;
  }
  #question {
    font-size: 1rem;
    min-height: 40px;
  }
  .stats {
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
  }
  #progress-bar {
    width: 95%;
    height: 12px;
  }
  #feedback {
    font-size: 0.9rem;
    min-height: 35px;
  }
  .particle {
    width: 3px;
    height: 3px;
  }
  #leaderboard {
    padding: 10px;
  }
  #leaderboard table {
    font-size: 0.9rem;
  }
  #score-form input {
    width: 150px;
  }
}