body {
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  flex: 1;
}

.neon-text {
  padding-top: 20px;
  font-size: 4em;
  color: #fff;
  text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 20px #ff00ff, 0 0 30px #ff00ff, 0 0 40px #ff00ff, 0 0 50px #ff00ff, 0 0 60px #ff00ff;
}

.sub-header {
  font-size: 1.5em;
  color: #aaa;
  text-shadow: 0 0 5px #aaa, 0 0 10px #aaa;
}

.transparent-card {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.custom-button {
  font-size: 1.2em;
  color: #fff;
  background: transparent;
  border: 2px solid #fff;
  border-radius: 25px;
  margin: 10px 0;
  transition: all 0.3s ease;
}

.custom-button:hover {
  background: #ff00ff;
  border-color: #ff00ff;
  color: #fff;
  transform: scale(1.1);
}

.btn-next-question {
  font-size: 1.5em;
  color: #fff;
  background: #ff00ff;
  border: none;
  border-radius: 25px;
  padding: 10px 20px;
  margin: 20px 0;
  transition: all 0.3s ease;
}

.btn-next-question:hover {
  background: #e600e6;
  transform: scale(1.1);
}

#overlay-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  display: none;
}

#overlay {
  background: #000;
  color: #fff;
  padding: 50px;
  border-radius: 15px;
  text-align: center;
  animation: fadeIn 0.5s ease-out;
}

#overlay-text {
  font-size: 2em;
  animation: glow 1s ease-in-out infinite alternate;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes glow {
  from {
    text-shadow: 0 0 10px #fff, 0 0 20px #ff00ff, 0 0 30px #ff00ff, 0 0 40px #ff00ff;
  }
  to {
    text-shadow: 0 0 20px #fff, 0 0 30px #ff00ff, 0 0 40px #ff00ff, 0 0 50px #ff00ff;
  }
}