/* AI Examiner Specific Styles */

/* Header Shimmer Effect */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.ai-examiner-header .section-title {
  background: linear-gradient(135deg, #FFD700 0%, #FFA500 25%, #FFD700 50%, #FFA500 75%, #FFD700 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s ease-in-out infinite;
  filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.3));
}

/* Controls Bar */
.ai-examiner-controls {
  padding: 1rem;
  position: sticky;
  top: 70px;
  z-index: 20;
  backdrop-filter: blur(8px);
}

.ai-examiner-selection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.ai-examiner-nav-row {
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  display: none; /* Hidden by default */
}

.ai-examiner-nav-row .row-left,
.ai-examiner-nav-row .row-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Question Card */
.ai-examiner-question-card {
  padding: 1.5rem;
  margin-top: 1.5rem;
}

/* Answer Section */
.ai-examiner-answer-section {
  overflow: hidden;
  margin-top: 1.5rem;
}

.ai-examiner-answer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.ai-examiner-answer-body {
  position: relative;
  padding: 1rem;
}

.ai-examiner-answer-textarea {
  width: 100%;
  height: 520px;
  resize: vertical;
  background-image: repeating-linear-gradient(transparent 0 28px, rgba(0,0,0,0.06) 28px);
  color: var(--color-text-dark);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  line-height: 1.75;
  padding: 18px;
  outline: none;
  transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.ai-examiner-answer-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.2);
}

html[data-theme='dark'] .ai-examiner-answer-textarea {
  background-image: repeating-linear-gradient(transparent 0 28px, rgba(255,255,255,0.06) 28px);
}

.ai-examiner-answer-footer {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.ai-examiner-highlighted-answer-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 520px;
  overflow: auto;
  background: var(--color-background);
  padding: 1rem;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  line-height: 1.75;
  word-wrap: break-word;
  white-space: pre-wrap;
}

/* Action Buttons */
.ai-examiner-actions {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

/* Feedback Section */
.ai-examiner-feedback-section {
  margin-top: 1.5rem;
}

.ai-examiner-feedback-content {
  padding: 1rem;
  margin-top: 0.5rem;
}

.ai-examiner-feedback-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.ai-examiner-feedback-marks {
  font-size: 1.1rem;
  font-weight: 600;
}

.ai-examiner-feedback-item {
  margin-top: 1rem;
}

.ai-examiner-feedback-tips-list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.ai-examiner-feedback-tip {
  padding: 6px 10px;
  background: var(--color-background);
  border-radius: 6px;
  border-left: 3px solid var(--color-border);
  margin-bottom: 6px;
}

.ai-examiner-color-codes {
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.ai-examiner-color-code-item {
  padding: 2px 6px;
  border-left: 3px solid;
  border-radius: 3px;
}

.ai-examiner-color-code-item.green {
  background: #28a74520;
  border-color: #28a745;
}

.ai-examiner-color-code-item.yellow {
  background: #ffc10720;
  border-color: #ffc107;
}

.ai-examiner-color-code-item.red {
  background: #dc354520;
  border-color: #dc3545;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(var(--color-card-background), 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2rem;
  color: var(--color-text-medium);
  z-index: 5;
  border-radius: var(--border-radius);
}

.loading-spinner {
  border: 4px solid rgba(var(--color-primary-rgb), 0.2);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 2rem auto;
}

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

/* Responsive Adjustments */
@media (max-width: 768px) {
  .ai-examiner-selection-grid {
    grid-template-columns: 1fr;
  }
}