/* Interactive Video Storyboard */
.video-storyboard {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.storyboard-header {
  background: var(--primary);
  color: var(--white);
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.progress-indicator {
  font-size: 0.9rem;
  opacity: 0.9;
}

.video-placeholder {
  background: #1a1a2e;
  aspect-ratio: 16/9;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.video-embed-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.video-embed-container iframe,
.video-embed-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.narration-bar {
  background: #1a1a2e;
  color: var(--white);
  padding: 15px 20px;
  font-size: 0.95rem;
  line-height: 1.6;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.narration-bar p {
  margin: 0;
}

/* Animated Video Presentation */
.animated-video {
  background: #0a0e17;
  border-radius: 16px;
  overflow: visible;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  font-family: 'Segoe UI', system-ui, sans-serif;
}

.av-header {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.av-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.av-counter {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.08);
  padding: 4px 12px;
  border-radius: 20px;
}

.av-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.av-partner-logos {
  display: flex;
  align-items: center;
  gap: 10px;
}

.av-partner-logo {
  height: 32px;
  max-width: 100px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
  border-radius: 6px;
  background: rgba(255,255,255,0.15);
  padding: 3px;
  display: block;
}

.av-stage {
  position: relative;
  min-height: 420px;
  display: flex;
  padding: 28px 32px;
  overflow: visible;
}

.av-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.av-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(255,255,255,0.03) 0%, transparent 60%);
}

/* Two Column Layout */
.av-content {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 28px;
  width: 100%;
}

.av-content-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.av-content-side {
  width: 260px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
}

/* Icon */
.av-icon {
  width: 52px;
  height: 52px;
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.08);
  border-radius: 14px;
  margin-bottom: 14px;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: 1px solid rgba(255,255,255,0.08);
}

/* Scene Title */
.av-scene-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.3;
}

/* Narration */
.av-narration {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.75;
  flex: 1;
}

.av-narration::after {
  content: '|';
  animation: blink 0.8s infinite;
  color: #4fc3f7;
  font-weight: bold;
  margin-left: 2px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Bullets */
.av-bullets {
  margin-top: auto;
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.av-bullet {
  color: rgba(255,255,255,0.85);
  font-size: 0.8rem;
  padding: 8px 12px;
  background: rgba(255,255,255,0.05);
  border-radius: 6px;
  border-left: 2px solid #4fc3f7;
  transform: translateX(-16px);
  line-height: 1.4;
}

/* Infographics Side Panel */
.av-infographic {
  position: relative;
  z-index: 1;
  overflow: visible;
  max-height: none;
}

/* Process Infographic */
.infographic-process {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.process-step {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
  border-radius: 12px;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transition: transform 0.3s, box-shadow 0.3s;
}

.process-step:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.step-icon {
  font-size: 1.4rem;
  width: 40px;
  height: 40px;
  min-width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79,195,247,0.25), rgba(2,136,209,0.15));
  border-radius: 10px;
  border: 1px solid rgba(79,195,247,0.3);
}

.step-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.95);
  font-weight: 500;
  line-height: 1.3;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.process-arrow {
  display: none;
}

/* Stats Infographic */
.infographic-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stat-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.04));
  border-radius: 14px;
  padding: 16px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.av-stage .stat-card .stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.av-stage .stat-card .stat-label {
  font-size: 0.72rem;
  color: #fff;
  margin-top: 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* Cycle Infographic */
.infographic-cycle {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto;
}

.cycle-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, rgba(79,195,247,0.35), rgba(2,136,209,0.2));
  border: 2px solid rgba(79,195,247,0.6);
  border-radius: 50%;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: #fff;
  font-weight: 700;
  text-align: center;
  z-index: 2;
  box-shadow: 0 4px 20px rgba(79,195,247,0.3);
}

.cycle-items {
  position: relative;
  width: 100%;
  height: 100%;
}

.cycle-item {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -32px 0 0 -32px;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.06));
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transform: rotate(var(--angle)) translateY(0) rotate(calc(-1 * var(--angle)));
  transition: transform 0.3s, box-shadow 0.3s;
}

.cycle-item:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.cycle-icon {
  font-size: 1.2rem;
}

.cycle-label {
  font-size: 0.5rem;
  color: rgba(255,255,255,0.9);
  text-align: center;
  margin-top: 2px;
  font-weight: 500;
}

/* Hierarchy Infographic */
.infographic-hierarchy {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hierarchy-level {
  width: 100%;
}

.level-box {
  background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.04));
  border-radius: 10px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  border-left: 3px solid #4fc3f7;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  transition: transform 0.3s, box-shadow 0.3s;
}

.level-box:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.2);
}

.level-icon {
  font-size: 1.1rem;
  width: 32px;
  height: 32px;
  min-width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79,195,247,0.2), rgba(2,136,209,0.1));
  border-radius: 8px;
}

.level-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.95);
  font-weight: 500;
  line-height: 1.3;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Comparison Infographic */
.infographic-comparison {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comparison-column {
  flex: 1;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.04));
  border-radius: 12px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  overflow: visible;
  transition: transform 0.3s, box-shadow 0.3s;
}

.comparison-column:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.comparison-column:first-child {
  border-left: 3px solid #4fc3f7;
}

.comparison-column:last-child {
  border-left: 3px solid #ff9800;
}

.col-header {
  font-weight: 700;
  color: #4fc3f7;
  margin-bottom: 10px;
  font-size: 0.8rem;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  padding-bottom: 8px;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: normal;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.comparison-column:last-child .col-header {
  color: #ff9800;
}

.col-item {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.9);
  padding: 6px 8px;
  margin-bottom: 4px;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  line-height: 1.4;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.col-item:last-child {
  margin-bottom: 0;
}

/* Pie Chart Infographic */
.infographic-pie {
  display: flex;
  align-items: center;
  gap: 16px;
}

.pie-chart {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  position: relative;
  overflow: hidden;
}

.pie-segment {
  position: absolute;
  width: 100%;
  height: 100%;
  clip-path: polygon(50% 50%, 50% 0%, 100% 0%, 100% 100%, 0% 100%, 0% 0%, 50% 0%);
  transform: rotate(calc(var(--start) * 3.6deg));
}

.pie-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.legend-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.9);
  font-weight: 500;
}

/* Progress Bar */
.av-progress-bar {
  height: 3px;
  background: rgba(255,255,255,0.08);
}

.av-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #4fc3f7, #0288d1);
  transition: width 0.4s ease;
  border-radius: 2px;
}

/* Controls */
.av-controls {
  background: rgba(255,255,255,0.03);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.av-btn {
  background: rgba(255,255,255,0.08);
  border: none;
  color: #fff;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.av-btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.15);
  transform: scale(1.05);
}

.av-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.av-play-btn {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #4fc3f7, #0288d1);
  font-size: 1rem;
  box-shadow: 0 4px 12px rgba(79, 195, 247, 0.3);
}

.av-play-btn:hover {
  background: linear-gradient(135deg, #0288d1, #01579b);
  transform: scale(1.08);
}

.av-time {
  color: rgba(255,255,255,0.4);
  font-size: 0.78rem;
  margin-left: auto;
}

/* Responsive */
@media (max-width: 900px) {
  .av-content {
    flex-direction: column;
    gap: 20px;
  }
  .av-content-side {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .av-infographic {
    width: 100%;
  }
  .infographic-stats {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .stat-card {
    flex: 1;
    min-width: 80px;
  }
  .infographic-comparison {
    flex-direction: column;
  }
  .comparison-column:first-child,
  .comparison-column:last-child {
    transform: none;
  }
}

@media (max-width: 600px) {
  .av-stage {
    padding: 20px;
    min-height: 320px;
  }
  .av-icon {
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
  }
  .av-scene-title {
    font-size: 1.1rem;
  }
  .av-narration {
    font-size: 0.85rem;
  }
  .av-bullet {
    font-size: 0.75rem;
    padding: 6px 10px;
  }
  .av-controls {
    padding: 10px 16px;
  }
  .av-btn {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
  }
  .av-play-btn {
    width: 40px;
    height: 40px;
  }
  .infographic-cycle {
    width: 160px;
    height: 160px;
  }
  .cycle-center {
    width: 56px;
    height: 56px;
    font-size: 0.55rem;
  }
  .cycle-item {
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .infographic-process {
    flex-direction: column;
  }
  .infographic-stats {
    flex-direction: column;
    align-items: center;
  }
  .infographic-comparison {
    flex-direction: column;
    align-items: stretch;
  }
  .infographic-pie {
    flex-direction: column;
  }
  .av-illustration {
    display: none;
  }
}

.video-overlay {
  text-align: center;
  color: var(--white);
  padding: 30px 40px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
}

.scene-visual {
  font-size: 3.5rem;
  margin-bottom: 15px;
}

.narration {
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

.pause-prompt {
  background: rgba(0,0,0,0.95);
  padding: 20px 30px;
  color: var(--white);
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.pause-prompt h4 {
  margin-bottom: 12px;
  font-size: 1rem;
  color: #ffffff;
}

.prompt-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.prompt-btn {
  padding: 10px 16px;
  border: 2px solid var(--white);
  background: transparent;
  color: var(--white);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s;
  font-size: 0.9rem;
  flex: 1;
  min-width: 120px;
  max-width: 300px;
}

.prompt-btn:hover {
  background: var(--white);
  color: var(--dark);
}

.prompt-feedback {
  margin-top: 15px;
  padding: 10px 15px;
  border-radius: var(--radius);
}

.prompt-feedback.correct {
  background: #27ae60;
}

.prompt-feedback.incorrect {
  background: #e74c3c;
}

.storyboard-controls {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--light);
}

/* Drag and Drop Activity */
.drag-drop-activity {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.activity-area {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 30px;
  margin: 20px 0;
}

.drag-items {
  background: var(--light);
  padding: 20px;
  border-radius: var(--radius);
}

.drag-item {
  background: var(--white);
  padding: 12px 15px;
  margin-bottom: 10px;
  border-radius: var(--radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: grab;
  border: 2px solid transparent;
  transition: all 0.3s;
}

.drag-item:hover {
  border-color: var(--primary);
}

.drag-item.dragging {
  opacity: 0.5;
  cursor: grabbing;
}

.item-icon {
  color: var(--gray);
  font-size: 1.2rem;
}

.drop-zones {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.drop-zone {
  border: 2px dashed var(--gray-light);
  border-radius: var(--radius);
  padding: 15px;
  min-height: 80px;
  transition: all 0.3s;
}

.drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(26, 82, 118, 0.05);
}

.zone-label {
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 5px;
}

.zone-description {
  font-size: 0.9rem;
  color: var(--gray);
  margin-bottom: 10px;
}

.zone-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.zone-items .drag-item {
  margin-bottom: 0;
  flex: 1;
  min-width: 150px;
}

.activity-controls {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

/* Knowledge Check */
.knowledge-check {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.question-card {
  background: var(--light);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.question-number {
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 10px;
}

.question-card h4 {
  margin-bottom: 15px;
  color: var(--dark);
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-label {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  background: var(--white);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s;
}

.option-label:hover {
  background: #e8f4fc;
}

.option-label input {
  margin-right: 10px;
}

.fill-blank {
  margin-top: 10px;
}

.blank-input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  font-size: 1rem;
}

.question-feedback {
  margin-top: 10px;
  padding: 10px;
  border-radius: var(--radius);
}

.question-feedback .correct {
  color: #27ae60;
  font-weight: 600;
}

.question-feedback .incorrect {
  color: #e74c3c;
  font-weight: 600;
}

.check-controls {
  text-align: center;
  margin-top: 20px;
}

/* Branching Scenario */
.branching-scenario {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.scenario-header {
  background: linear-gradient(135deg, #2c3e50, #34495e);
  color: var(--white);
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.scenario-content {
  padding: 30px;
}

.scenario-narrative {
  background: var(--light);
  border-radius: var(--radius);
  padding: 25px;
  margin-bottom: 25px;
  border-left: 4px solid var(--primary);
}

.narrative-text {
  font-size: 1.1rem;
  line-height: 1.8;
}

.character-name {
  margin-top: 15px;
  font-style: italic;
  color: var(--gray);
}

.scenario-image {
  margin-top: 15px;
  text-align: center;
}

.scenario-image img {
  max-width: 100%;
  border-radius: var(--radius);
}

.scenario-choices {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.choice-btn {
  display: flex;
  align-items: center;
  padding: 15px 20px;
  background: var(--white);
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s;
  text-align: left;
}

.choice-btn:hover {
  border-color: var(--primary);
  background: #f8f9fa;
}

.choice-number {
  width: 30px;
  height: 30px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  font-weight: 600;
}

.choice-text {
  flex: 1;
}

.scenario-history {
  padding: 20px;
  background: var(--light);
  border-top: 1px solid var(--gray-light);
}

.history-trail {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.history-item {
  background: var(--white);
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
}

.scenario-result {
  padding: 40px;
  text-align: center;
}

.decision-summary {
  margin-top: 30px;
  text-align: left;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.decision-item {
  display: flex;
  justify-content: space-between;
  padding: 10px;
  margin-bottom: 5px;
  border-radius: var(--radius);
}

.decision-item.correct {
  background: #d5f5e3;
}

.decision-item.incorrect {
  background: #fdedec;
}

/* Case Study */
.case-study {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.case-header {
  background: linear-gradient(135deg, #8e44ad, #9b59b6);
  color: var(--white);
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.case-tag {
  background: rgba(255,255,255,0.2);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.85rem;
}

.case-content {
  padding: 30px;
}

.case-section {
  margin-bottom: 30px;
}

.case-section h4 {
  color: var(--primary);
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--light);
}

.section-text {
  line-height: 1.8;
}

.case-data {
  background: #fef9e7;
  padding: 15px;
  border-radius: var(--radius);
  margin-top: 15px;
  border-left: 4px solid #f39c12;
}

.case-questions {
  margin-top: 25px;
}

.analysis-question {
  margin-bottom: 15px;
}

.analysis-question p {
  font-weight: 600;
  margin-bottom: 10px;
}

.analysis-input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  font-family: inherit;
  resize: vertical;
}

.case-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--light);
}

.section-indicator {
  color: var(--gray);
}

/* Test Bank */
.test-bank {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.test-header {
  text-align: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--light);
}

.test-question {
  background: var(--light);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.question-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.question-num {
  font-weight: 600;
  color: var(--primary);
}

.question-type {
  font-size: 0.85rem;
  color: var(--gray);
  text-transform: capitalize;
}

.question-text {
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.option-card {
  display: flex;
  align-items: center;
  padding: 12px;
  background: var(--white);
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s;
}

.option-card:hover {
  border-color: var(--primary);
}

.option-card input {
  margin-right: 10px;
}

.option-letter {
  width: 25px;
  height: 25px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 10px;
  font-size: 0.85rem;
  font-weight: 600;
}

.tf-options {
  display: flex;
  gap: 20px;
}

.tf-option {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 15px;
  background: var(--white);
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s;
}

.tf-option:hover {
  border-color: var(--primary);
}

.tf-option input {
  margin-right: 10px;
}

.test-controls {
  text-align: center;
  margin-top: 20px;
}

/* Discussion Forum */
.discussion-forum {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.forum-header {
  margin-bottom: 25px;
}

.discussion-prompt {
  margin-bottom: 30px;
}

.prompt-card {
  background: linear-gradient(135deg, #3498db, #2980b9);
  color: var(--white);
  padding: 25px;
  border-radius: var(--radius);
}

.prompt-card h4 {
  margin-bottom: 10px;
}

.guidelines {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid rgba(255,255,255,0.3);
}

.guidelines h5 {
  margin-bottom: 10px;
}

.guidelines ul {
  margin-left: 20px;
}

.guidelines li {
  margin-bottom: 5px;
  opacity: 0.9;
}

.forum-posts {
  margin-bottom: 30px;
}

.no-posts {
  text-align: center;
  color: var(--gray);
  padding: 40px;
  background: var(--light);
  border-radius: var(--radius);
}

.forum-post {
  padding: 15px;
  background: var(--light);
  border-radius: var(--radius);
  margin-bottom: 15px;
}

.post-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.post-author {
  font-weight: 600;
  color: var(--primary);
}

.post-time {
  font-size: 0.85rem;
  color: var(--gray);
}

.post-content {
  line-height: 1.6;
}

.new-post h4 {
  margin-bottom: 15px;
}

.post-textarea {
  width: 100%;
  padding: 15px;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  font-family: inherit;
  resize: vertical;
  margin-bottom: 15px;
}

/* Result Summaries */
.result-summary {
  padding: 25px;
  border-radius: var(--radius);
  text-align: center;
}

.result-summary.pass {
  background: #d5f5e3;
  border: 2px solid #27ae60;
}

.result-summary.fail {
  background: #fdedec;
  border: 2px solid #e74c3c;
}

.result-summary h4 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.result-summary .success {
  color: #27ae60;
  font-weight: 600;
  margin-top: 10px;
}

.result-summary .retry {
  color: #e74c3c;
  font-weight: 600;
  margin-top: 10px;
}

/* Question Card Header with Timer */
.question-card-header,
.test-question .question-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.question-timer {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #f0f4ff;
  border: 1px solid #c5d0e6;
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #3b5998;
  min-width: 60px;
  justify-content: center;
}

.timer-icon {
  font-size: 0.9rem;
}

.timer-value {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
}

/* Retake Button on Questions */
.question-retake {
  margin-top: 10px;
}

.btn-retake {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fff3e0;
  color: #e65100;
  border: 1px solid #ffcc80;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-retake:hover {
  background: #ffe0b2;
  border-color: #ffb74d;
}

/* Correct/Incorrect Item Styling for DragDrop */
.drag-item.correct {
  border-color: #27ae60;
  background: #e8f5e9;
}

.drag-item.incorrect {
  border-color: #e74c3c;
  background: #fce4ec;
}

/* Question Feedback */
.question-feedback {
  margin-top: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
}

.question-feedback .correct {
  color: #27ae60;
  font-weight: 600;
}

.question-feedback .incorrect {
  color: #e74c3c;
  font-weight: 600;
}

/* Responsive Design for Interactive Elements */
@media (max-width: 768px) {
  .activity-area {
    grid-template-columns: 1fr;
  }

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

  .tf-options {
    flex-direction: column;
  }

  .prompt-options {
    flex-direction: column;
  }

  .prompt-btn {
    width: 100%;
    max-width: 100%;
  }

  .choice-btn {
    flex-direction: column;
    text-align: center;
  }

  .choice-number {
    margin-right: 0;
    margin-bottom: 10px;
  }

  .history-trail {
    flex-direction: column;
  }

  .question-card-header {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }

  .question-timer {
    align-self: flex-end;
  }
}