input[type="radio"],
input[type="checkbox"] {
  margin-right: 0.8rem;
  margin-top: 0.1rem;
}

/* ARIA Live Regions */
.big-quiz__sr-announcements,
.big-quiz__sr-alerts {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.big-quiz__sr-announcements .sr-only,
.big-quiz__sr-alerts .sr-only {
  position: static;
  width: auto;
  height: auto;
  margin: 0;
  padding: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Quiz Container */
.big-quiz {
  max-width: 50rem;
  margin: 0 auto;
  padding: 1.5rem;
  font-family: inherit;
  background: #ffffff;
  border-radius: 0.5rem;
  box-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.1);
}

/* Quiz Header */
.big-quiz__header {
  margin-bottom: 2rem;
  text-align: center;
}

.big-quiz__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1a202c;
  margin: 0 0 1.5rem 0;
  line-height: 1.2;
}

/* Progress Bar */
.big-quiz__progress {
  background: #f7fafc;
  border-radius: 0.5rem;
  padding: 1rem;
  border: 0.125rem solid #e2e8f0;
}

.big-quiz__progress-bar {
  height: 0.5rem;
  background: linear-gradient(90deg, #4299e1, var(--dark-brand));
  border-radius: 0.25rem;
  transition: width 0.3s ease;
  margin-bottom: 0.75rem;
}

.big-quiz__progress-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: #4a5568;
  display: block;
}

.current-question {
  color: var(--dark-brand);
  font-weight: 700;
}

/* Quiz Content */
.big-quiz__content {
  position: relative;
}

/* Start Screen */
.big-quiz__start-screen {
  text-align: center;
  padding: 2rem 0;
}

.big-quiz__intro {
  max-width: 35rem;
  margin: 0 auto;
}

.big-quiz__description {
  font-size: 1rem;
  line-height: 1.6;
  color: #4a5568;
  margin-bottom: 1.5rem;
}

.big-quiz__meta {
  background: #f7fafc;
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 0.125rem solid #e2e8f0;
}

.big-quiz__meta p {
  margin: 0 0 0.5rem 0;
  font-size: 0.875rem;
  color: #4a5568;
}

.big-quiz__meta p:last-child {
  margin-bottom: 0;
}

/* Buttons */
.big-quiz__start-btn,
.big-quiz__nav-btn,
.big-quiz__restart-btn {
  background: var(--brand);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 2.75rem;
  min-width: 8rem;
}

.big-quiz__start-btn:hover,
.big-quiz__nav-btn:hover,
.big-quiz__restart-btn:hover {
  background: #2c5282;
  transform: translateY(-0.0625rem);
}

.big-quiz__start-btn:active,
.big-quiz__nav-btn:active,
.big-quiz__restart-btn:active {
  transform: translateY(0);
}

/* Question Wrapper */
.big-quiz__question-wrapper {
  padding: 1.5rem 0;
}

.big-quiz__question-form {
  max-width: 45rem;
  margin: 0 auto;
}

/* Fieldset and Legend */
.big-quiz__fieldset {
  border: none;
  margin: 0;
  padding: 0;
}

.big-quiz__question-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 1rem;
  line-height: 1.4;
  display: block;
}

.big-quiz__instruction {
  font-size: 0.875rem;
  color: var(--text-title);
  margin: 0 0 1rem 0;
  padding: 0.5rem 0.75rem;
  background: #edf2f7;
  border-radius: 0.25rem;
  border-left: 0.25rem solid #4299e1;
}

/* Validation Message */
.big-quiz__validation-message {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  background: #fff5f5;
  border: 0.125rem solid #fc8181;
  border-radius: 0.375rem;
  border-left: 0.25rem solid #e53e3e;
  /* Use opacity and height instead of display: none for ARIA compatibility */
  opacity: 0;
  height: 0;
  overflow: hidden;
  transition: opacity 0.3s ease, height 0.3s ease, padding 0.3s ease;
}

.big-quiz__validation-message.show {
  opacity: 1;
  height: auto;
  padding: 0.75rem 1rem;
}

.big-quiz__validation-message p {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: #742a2a;
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.big-quiz__validation-icon {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
  color: #dc2626;
}

.big-quiz__validation-message[aria-live] {
  /* Ensure screen readers announce this */
  position: relative;
}

/* Answers Container */

.big-quiz__answer {
  margin-bottom: 0.75rem;
  position: relative;
}

.big-quiz__label {
  display: flex;
  align-items: center;
  padding: 1rem;
  background: #f7fafc;
  border: 0.125rem solid #e2e8f0;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
  line-height: 1.5;
  min-height: 3rem;
  color: var(--text-title);
}

/* Hover States */
.big-quiz__label:hover {
  background: #edf2f7;
  border-color: #cbd5e0;
}

/* Checked States */
.big-quiz__input:checked + .big-quiz__label {
  background: #ebf8ff;
  border-color: var(--dark-brand);
}

/* Result States */
.big-quiz__answer.correct .big-quiz__label {
  background: #f0fff4;
  border-color: #38a169;
  color: #22543d;
}

.big-quiz__answer.incorrect .big-quiz__label {
  background: #fff5f5;
  border-color: #e53e3e;
  color: #742a2a;
}

/* Navigation */
.big-quiz__navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  justify-content: end;
}

.big-quiz__prev-btn {
  background: #718096;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.big-quiz__prev-btn:hover {
  background: #4a5568;
}

.big-quiz__next-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.big-quiz__finish-btn {
  background: #38a169;
}

.big-quiz__finish-btn:hover {
  background: #2f855a;
}

/* Navigation Icons */
.big-quiz__nav-btn svg {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

/* Results Screen */
.big-quiz__results {
  text-align: center;
  padding: 2rem 0;
}

.big-quiz__results-content {
  max-width: 50rem;
  margin: 0 auto;
}

.big-quiz__results-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1a202c;
  margin: 0 0 2rem 0;
}

.big-quiz__score {
  background: #f7fafc;
  border-radius: 0.5rem;
  padding: 2rem;
  margin-bottom: 1.5rem;
  border: 0.125rem solid #e2e8f0;
}

.big-quiz__score-display {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark-brand);
  margin-bottom: 0.5rem;
  line-height: 1;
}

.big-quiz__score-total {
  font-size: 1.25rem;
  color: #4a5568;
}

.big-quiz__score-percentage {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-title);
}

.big-quiz__results-message {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-title);
  margin-bottom: 2rem;
  padding: 1rem;
  background: #edf2f7;
  border-radius: 0.375rem;
}

/* Detailed Results */
.big-quiz__detailed-results {
  text-align: left;
  margin: 2rem 0;
  padding: 1.5rem;
  background: #f7fafc;
  border-radius: 0.5rem;
  border: 0.125rem solid #e2e8f0;
}

.big-quiz__detailed-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a202c;
  margin: 0 0 1.5rem 0;
  text-align: center;
}

.big-quiz__result-question {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: white;
  border-radius: 0.375rem;
  border: 0.125rem solid #e2e8f0;
}

.big-quiz__result-question:last-child {
  margin-bottom: 0;
}

.big-quiz__result-question-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #1a202c;
  margin: 0 0 1rem 0;
  line-height: 1.4;
}

.big-quiz__result-answers {
  margin-bottom: 1rem;
}

.big-quiz__result-answer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  border-radius: 0.25rem;
  border: 0.125rem solid #e2e8f0;
  background: #f7fafc;
}

.big-quiz__result-answer:last-child {
  margin-bottom: 0;
}

.big-quiz__result-answer.correct {
  background: #f0fff4;
  border-color: #38a169;
}

.big-quiz__result-answer.user-selected {
  background: #ebf8ff;
  border-color: var(--dark-brand);
  font-weight: 600;
}

.big-quiz__result-answer.user-selected.correct {
  background: #f0fff4;
  border-color: #38a169;
}

.big-quiz__result-answer.user-selected.incorrect {
  background: #fff5f5;
  border-color: #e53e3e;
}

.big-quiz__result-answer-text {
  flex: 1;
  font-size: 0.875rem;
  line-height: 1.4;
}

.big-quiz__result-answer-status {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  margin-left: 0.5rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.big-quiz__result-answer-status svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.big-quiz__result-answer-status.correct {
  background: #2d7a51;
  color: white;
}

.big-quiz__result-user-answer {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--dark-brand);
  margin-left: 0.5rem;
}

.big-quiz__result-user-answer .selected {
  background: var(--dark-brand);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}

.big-quiz__result-question-status {
  padding: 0.75rem;
  border-radius: 0.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.big-quiz__result-question-status.correct {
  background: #f0fff4;
  color: #22543d;
  border: 0.125rem solid #38a169;
}

.big-quiz__result-question-status.incorrect {
  background: #fff5f5;
  color: #742a2a;
  border: 0.125rem solid #e53e3e;
}

.big-quiz__result-question-status svg {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

/* Message title styling */
.big-quiz__message-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
  color: #1f2937;
  line-height: 1.4;
}

/* Message paragraph styling */
.big-quiz__results-message p {
  margin: 0;
  line-height: 1.6;
}

/* Special styling for perfect score message */
.big-quiz__results-message.perfect-score {
  background: #f0fff4;
  border: 0.125rem solid #38a169;
  color: #22543d;
  font-weight: 700;
}

.big-quiz__results-message.perfect-score .big-quiz__message-title {
  color: #22543d;
}

/* Error Messages */
.quiz-error {
  background: #fed7d7;
  color: #742a2a;
  padding: 1rem;
  border-radius: 0.375rem;
  border: 0.125rem solid #fc8181;
  margin: 1rem 0;
  font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
  .big-quiz {
    padding: 1rem;
    margin: 1rem;
  }

  .big-quiz__title {
    font-size: 1.5rem;
  }

  .big-quiz__question-title {
    font-size: 1.125rem;
  }

  .big-quiz__navigation {
    flex-direction: column;
    gap: 0.75rem;
  }

  .big-quiz__nav-btn {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }

  .big-quiz__label {
    padding: 1rem;
    font-size: 0.875rem;
    line-height: 1.4;
  }

  .big-quiz__result-answer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .big-quiz__result-answer-status {
    margin-left: 0;
    align-self: flex-start;
  }

  .big-quiz__score {
    padding: 1.5rem;
  }

  .big-quiz__score-display {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .big-quiz {
    padding: 0.75rem;
    margin: 0.5rem;
  }

  .big-quiz__title {
    font-size: 1.25rem;
  }

  .big-quiz__question-title {
    font-size: 1rem;
  }

  .big-quiz__label {
    padding: 0.875rem;
    font-size: 0.813rem;
  }

  .big-quiz__nav-btn {
    padding: 0.875rem 1.25rem;
    font-size: 0.875rem;
  }

  .big-quiz__score {
    padding: 1rem;
  }

  .big-quiz__score-display {
    font-size: 1.75rem;
  }

  .big-quiz__result-question {
    padding: 1rem;
  }

  .big-quiz__result-answer {
    padding: 0.75rem;
    font-size: 0.813rem;
  }

  .big-quiz__result-answer-status {
    font-size: 0.688rem;
    padding: 0.25rem 0.375rem;
  }

  .big-quiz__detailed-results {
    padding: 1rem;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .big-quiz__progress-bar,
  .big-quiz__label,
  .big-quiz__nav-btn {
    transition: none;
  }
}

/* Print Styles */
@media print {
  .big-quiz__navigation,
  .big-quiz__start-btn,
  .big-quiz__restart-btn {
    display: none;
  }

  .big-quiz__question-wrapper {
    display: block !important;
    page-break-inside: avoid;
    margin-bottom: 2rem;
  }

  .big-quiz__results {
    display: block !important;
  }
}