.quiz {
  max-width: 800px;
  margin: 2rem auto;
  padding: 2rem;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
}

.progress {
  margin-bottom: 2rem;
  text-align: center;
}

.progressBar {
  width: 100%;
  height: 8px;
  background-color: #e2e8f0;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progressFill {
  height: 100%;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progressText {
  color: #64748b;
  font-size: 0.875rem;
  font-weight: 500;
}

.questionCard {
  background: white;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
}

.questionTitle {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 1.5rem;
  line-height: 1.4;
}

.scenario {
  margin-bottom: 1.5rem;
}

.scenarioBox {
  background: #f1f5f9;
  border: 2px solid #cbd5e1;
  border-radius: 8px;
  padding: 1rem;
  margin-top: 0.5rem;
  font-family: 'SF Mono', Monaco, 'Inconsolata', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #334155;
}

.options {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.option {
  padding: 1rem 1.25rem;
  border: 2px solid #e2e8f0;
  background: white;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  color: #374151;
}

.option:hover:not(:disabled) {
  border-color: #3b82f6;
  background: #eff6ff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.option.selected {
  border-color: #3b82f6;
  background: #dbeafe;
  color: #1e40af;
}

.option.correct {
  border-color: #10b981;
  background: #d1fae5;
  color: #047857;
}

.option.incorrect {
  border-color: #ef4444;
  background: #fee2e2;
  color: #dc2626;
}

.option:disabled {
  cursor: not-allowed;
}

.matching {
  margin-bottom: 1.5rem;
}

.choices h4,
.categories h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 1rem;
}

.choicesList {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.choice {
  padding: 0.75rem 1rem;
  background: #3b82f6;
  color: white;
  border-radius: 6px;
  cursor: grab;
  transition: all 0.2s ease;
  font-weight: 500;
  text-align: center;
  user-select: none;
}

.choice:hover {
  background: #2563eb;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.choice:active {
  cursor: grabbing;
}

.choice.placed {
  opacity: 0.5;
  cursor: not-allowed;
}

.choice.correct {
  background: #10b981;
}

.choice.incorrect {
  background: #ef4444;
}

.categories {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.category {
  background: #f8fafc;
  border: 2px dashed #cbd5e1;
  border-radius: 8px;
  padding: 1rem;
  min-height: 150px;
}

.dropZone {
  min-height: 100px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
}

.droppedChoice {
  padding: 0.5rem 0.75rem;
  background: #e2e8f0;
  border-radius: 4px;
  font-size: 0.875rem;
  color: #475569;
  text-align: center;
  width: 100%;
}

.dropHint {
  color: #94a3b8;
  font-style: italic;
  text-align: center;
  font-size: 0.875rem;
}

.explanation {
  background: #f0f9ff;
  border: 1px solid #0ea5e9;
  border-radius: 8px;
  padding: 1.5rem;
  margin-top: 1rem;
  animation: slideIn 0.3s ease-out;
}

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

.explanationContent {
  margin-bottom: 1rem;
}

.explanationContent strong {
  color: #0c4a6e;
}

.explanationContent p {
  margin: 0.5rem 0 0 0;
  color: #374151;
  line-height: 1.6;
}

.nextButton {
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.nextButton:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}

.hint {
  text-align: center;
  color: #64748b;
  font-style: italic;
  margin-top: 1rem;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 6px;
}

/* Results Styles */
.results {
  text-align: center;
}

.scoreDisplay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  padding: 2rem;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.scoreEmoji {
  font-size: 4rem;
  animation: bounce 0.6s ease-in-out;
}

@keyframes bounce {
  0%,
  20%,
  60%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  80% {
    transform: translateY(-5px);
  }
}

.scoreText h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 0.5rem 0;
}

.scoreNumber {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.timeDisplay {
  color: #64748b;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.resultsSummary {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.resultsSummary h3 {
  margin: 0 0 1rem 0;
  color: #1e293b;
}

.resultItem {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #f1f5f9;
}

.resultItem:last-child {
  border-bottom: none;
}

.correct {
  color: #059669;
  font-weight: 600;
}

.incorrect {
  color: #dc2626;
  font-weight: 600;
}

.points {
  font-weight: 600;
  color: #64748b;
}

.actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.retryButton {
  background: #6b7280;
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.retryButton:hover {
  background: #4b5563;
  transform: translateY(-2px);
}

.cta {
  background: linear-gradient(135deg, #059669, #0891b2);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.3);
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .quiz {
    margin: 1rem;
    padding: 1rem;
  }

  .questionCard {
    padding: 1.5rem;
  }

  .categories {
    grid-template-columns: 1fr;
  }

  .scoreDisplay {
    flex-direction: column;
    gap: 1rem;
  }

  .scoreEmoji {
    font-size: 3rem;
  }

  .scoreText h2 {
    font-size: 1.5rem;
  }

  .scoreNumber {
    font-size: 1.5rem;
  }

  .actions {
    flex-direction: column;
  }

  .retryButton,
  .cta {
    width: 100%;
  }
}

html[data-theme='dark'] .quiz {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

html[data-theme='dark'] .progressBar {
  background-color: #334155;
}

html[data-theme='dark'] .progressText {
  color: #94a3b8;
}

html[data-theme='dark'] .questionCard {
  background: #0b1220;
  border-color: #334155;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

html[data-theme='dark'] .questionTitle {
  color: #e2e8f0;
}

html[data-theme='dark'] .scenarioBox {
  background: #111827;
  border-color: #334155;
  color: #cbd5e1;
}

html[data-theme='dark'] .option {
  background: #111827;
  border-color: #334155;
  color: #e2e8f0;
}

html[data-theme='dark'] .option:hover:not(:disabled) {
  background: #172554;
  border-color: #3b82f6;
}

html[data-theme='dark'] .option.selected {
  background: #1e3a8a;
  border-color: #3b82f6;
  color: #dbeafe;
}

html[data-theme='dark'] .option.correct {
  background: #052e16;
  border-color: #166534;
  color: #86efac;
}

html[data-theme='dark'] .option.incorrect {
  background: #450a0a;
  border-color: #991b1b;
  color: #fca5a5;
}

html[data-theme='dark'] .choices h4,
html[data-theme='dark'] .categories h4 {
  color: #e2e8f0;
}

html[data-theme='dark'] .category {
  background: #111827;
  border-color: #334155;
}

html[data-theme='dark'] .droppedChoice {
  background: #1f2937;
  color: #cbd5e1;
}

html[data-theme='dark'] .dropHint {
  color: #94a3b8;
}

html[data-theme='dark'] .explanation {
  background: #0c1a2e;
  border-color: #0284c7;
}

html[data-theme='dark'] .explanationContent strong {
  color: #7dd3fc;
}

html[data-theme='dark'] .explanationContent p {
  color: #cbd5e1;
}

html[data-theme='dark'] .hint {
  color: #94a3b8;
  background: #111827;
}

html[data-theme='dark'] .scoreDisplay,
html[data-theme='dark'] .resultsSummary {
  background: #0b1220;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

html[data-theme='dark'] .scoreText h2,
html[data-theme='dark'] .resultsSummary h3 {
  color: #e2e8f0;
}

html[data-theme='dark'] .timeDisplay,
html[data-theme='dark'] .points {
  color: #94a3b8;
}

html[data-theme='dark'] .resultItem {
  border-bottom-color: #1f2937;
}

html[data-theme='dark'] .retryButton {
  background: #475569;
}

html[data-theme='dark'] .retryButton:hover {
  background: #334155;
}