.quiz-container-custom {
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.1);
  padding: 30px;
  width: 100%;
  max-width: 640px;
  box-sizing: border-box;
  margin: 20px auto;
}

.quiz-title-custom {
  color: #1a5f7a;
  text-align: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.quiz-intro-custom {
  text-align: center;
  color: #666;
  margin-bottom: 25px;
  line-height: 1.6;
}

.quiz-btn-custom {
  background: linear-gradient(45deg, #2980b9, #3498db);
  border: none;
  color: white;
  padding: 12px 24px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  border-radius: 25px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.quiz-btn-custom:hover {
  background: linear-gradient(45deg, #3498db, #2980b9);
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0,0,0,0.15);
}

.quiz-btn-custom:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.quiz-btn-selected-custom {
  background: linear-gradient(45deg, #1c638e, #2980b9);
  transform: scale(0.95);
}

#quiz-start-btn-custom {
  display: block;
  margin: 20px auto;
  font-size: 18px;
  padding: 15px 30px;
}

.quiz-btn-grid-custom {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin: 25px 0;
}

.quiz-counter-custom {
  text-align: center;
  color: #888;
  font-style: italic;
  margin-bottom: 15px;
}

#quiz-question-text-custom {
  color: #1a5f7a;
  text-align: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.quiz-spinner-custom {
  border: 4px solid #f3f3f3;
  border-top: 4px solid #3498db;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: quiz-spin-custom 1s linear infinite;
  margin: 30px auto;
}

@keyframes quiz-spin-custom {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.quiz-analysis-title-custom {
  color: #1a5f7a;
  text-align: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.quiz-completion-title-custom {
  color: #2980b9;
  text-align: center;
  font-size: 26px;
  margin-bottom: 15px;
}

.quiz-completion-text-custom {
  text-align: center;
  color: #666;
  font-size: 18px;
}

#quiz-question-container-custom, 
#quiz-analysis-custom {
  display: none;
}

@media (max-width: 640px) {
  .quiz-container-custom {
      width: 100%;
      min-width: 350px;
      border-radius: 0;
      padding: 20px;
  }

  .quiz-btn-grid-custom {
      grid-template-columns: 1fr;
  }

  .quiz-title-custom {
      font-size: 24px;
  }

  #quiz-question-text-custom {
      font-size: 20px;
  }
}

#thankyou-p {
  font-size: 0.8em;
  margin-bottom: 0;
}