/**
 * Enhanced Self-Marked Question Styles - F-030 Phase 4
 *
 * Complete styling for extended response questions:
 * - Large textarea for writing
 * - Mark scheme display
 * - Self-assessment panel
 * - Word count display
 * - Dark mode, responsive, accessibility
 *
 * Created: 2026-01-22
 */

/* ==================== SELF CONTAINER ==================== */
/* Note: Container frame comes from parent .question-display */

.quiz-self {
  /* Uses unified .quiz-container system */
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

@keyframes selfContentFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ==================== QUESTION STEM ==================== */

.quiz-self .quiz-question-stem {
  margin-bottom: var(--space-lg, 1.5rem);
  animation: selfStemFadeIn 350ms ease-out;
}

@keyframes selfStemFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.quiz-self .quiz-question-text {
  font-size: var(--font-lg, 1.125rem);
  font-weight: 500;
  color: var(--text-primary, #1f2937);
  line-height: 1.6;
  margin: 0 0 var(--space-sm, 0.5rem) 0;
}

.quiz-self .quiz-question-marks {
  display: inline-block;
  font-size: var(--font-sm, 0.875rem);
  color: var(--text-muted, #64748b);
  font-weight: 500;
}

/* ==================== INPUT CONTAINER ==================== */

.quiz-self-input-container {
  margin-bottom: var(--space-lg, 1.5rem);
  animation: selfInputSlideIn 300ms ease-out 100ms both;
}

@keyframes selfInputSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== TEXTAREA ==================== */

.quiz-self-textarea {
  width: 100%;
  flex: 1; /* Grow to fill available space in unified container */
  min-height: 200px; /* Reduced from 300px to fit within container */
  max-height: 400px; /* Prevent overflow of container */
  padding: var(--space-4, 1rem);
  background: var(--bg-secondary, #f3f4f6);
  color: var(--text-primary, #1f2937);
  border: 2px solid var(--border, #e5e7eb);
  border-radius: var(--radius-md, 8px);
  font-size: var(--text-base, 1rem);
  font-family: inherit;
  line-height: var(--leading-normal, 1.5);
  resize: vertical;
  transition: var(--transition-colors);
}

.quiz-self-textarea::placeholder {
  color: var(--text-muted, #9ca3af);
}

.quiz-self-textarea:hover {
  border-color: var(--border-light, #d1d5db);
}

.quiz-self-textarea:focus {
  outline: none;
  border-color: var(--accent, #2563EB);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  background: var(--bg-primary, #ffffff);
}

/* Readonly state after submission */
.quiz-self.quiz-submitted .quiz-self-textarea {
  background: var(--bg-tertiary, #f9fafb);
  cursor: not-allowed;
  opacity: 0.8;
}

/* ==================== WORD COUNT ==================== */

.quiz-self-word-count {
  margin-top: var(--space-sm, 0.5rem);
  font-size: var(--font-sm, 0.875rem);
  color: var(--text-muted, #64748b);
}

.quiz-self-word-count-current {
  font-weight: 600;
  color: var(--text-secondary, #4b5563);
}

/* ==================== MARK SCHEME ==================== */

.quiz-mark-scheme {
  margin-bottom: var(--space-lg, 1.5rem);
  padding: var(--space-md, 1rem);
  background: var(--bg-secondary, #f8f9fa);
  border: 1px solid var(--border, #e5e7eb);
  border-radius: var(--radius-md, 0.5rem);
  border-left: 3px solid var(--accent, #2563EB);
  animation: selfMarkSchemeSlideIn 300ms ease-out 200ms both;
}

@keyframes selfMarkSchemeSlideIn {
  from {
    opacity: 0;
    transform: translateX(-12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.quiz-mark-scheme h4 {
  margin: 0 0 var(--space-sm, 0.5rem) 0;
  font-size: var(--font-sm, 0.875rem);
  font-weight: 600;
  color: var(--accent, #2563EB);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.quiz-mark-scheme ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.quiz-mark-scheme li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm, 0.5rem);
  padding: var(--space-sm, 0.5rem) 0;
  font-size: var(--font-sm, 0.875rem);
  color: var(--text-primary, #1f2937);
  border-bottom: 1px solid var(--border-light, #f3f4f6);
}

.quiz-mark-scheme li:last-child {
  border-bottom: none;
}

.quiz-mark-scheme li::before {
  content: '○';
  color: var(--text-muted, #9ca3af);
  flex-shrink: 0;
}

.quiz-mark-scheme .mark-value {
  color: var(--text-muted, #64748b);
  font-size: var(--font-xs, 0.75rem);
  font-weight: 500;
}

/* ==================== SELF-ASSESSMENT PANEL ==================== */

.quiz-self-assessment {
  margin-top: var(--space-lg, 1.5rem);
  padding: var(--space-md, 1rem);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-left: 3px solid var(--accent, #2563EB);
  border-radius: var(--radius-md, 0.5rem);
  animation: selfAssessmentFadeIn 300ms ease-out;
}

@keyframes selfAssessmentFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.quiz-self-assessment-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  margin-bottom: var(--space-sm, 0.5rem);
  font-weight: 600;
  color: var(--accent, #2563EB);
}

.quiz-self-assessment-text {
  margin-bottom: var(--space-md, 1rem);
  font-size: var(--font-sm, 0.875rem);
  color: var(--text-secondary, #4b5563);
  line-height: 1.5;
}

/* Mark selection buttons */
.quiz-self-mark-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm, 0.5rem);
}

.quiz-self-mark-btn {
  min-width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary, #f3f4f6);
  border: 2px solid var(--border, #e5e7eb);
  border-radius: var(--radius-md, 8px);
  font-size: var(--font-base, 1rem);
  font-weight: 600;
  color: var(--text-primary, #1f2937);
  cursor: pointer;
  transition: all var(--transition-fast, 150ms);
}

.quiz-self-mark-btn:hover {
  border-color: var(--accent, #2563EB);
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

.quiz-self-mark-btn:focus {
  outline: 2px solid var(--accent, #2563EB);
  outline-offset: 2px;
}

.quiz-self-mark-btn.selected {
  background: var(--accent, #2563EB);
  border-color: var(--accent, #2563EB);
  color: white;
}

/* ==================== SUBMIT BUTTON ==================== */

.quiz-self .quiz-submit-container {
  margin-bottom: var(--space-lg, 1.5rem);
}

.quiz-self .quiz-btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm, 0.5rem);
  padding: var(--space-sm, 0.75rem) var(--space-xl, 2rem);
  background: var(--accent, #2563EB);
  color: white;
  border: none;
  border-radius: var(--radius-md, 0.5rem);
  font-size: var(--font-base, 1rem);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast, 150ms);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.quiz-self .quiz-btn-submit:hover {
  background: var(--accent-hover, #2563eb);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.quiz-self .quiz-btn-submit:active {
  transform: translateY(0);
}

.quiz-self .quiz-btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ==================== FEEDBACK ==================== */

.quiz-self .quiz-feedback {
  margin-bottom: var(--space-md, 1rem);
  padding: var(--space-md, 1rem);
  background: rgba(59, 130, 246, 0.08);
  border-left: 3px solid var(--accent, #2563EB);
  border-radius: var(--radius-md, 0.5rem);
  font-size: var(--font-sm, 0.875rem);
  line-height: 1.6;
  color: var(--text-secondary, #4b5563);
}

.quiz-self .quiz-feedback:empty {
  display: none;
}

/* ==================== DARK MODE ==================== */

@media (prefers-color-scheme: dark) {
  .quiz-self .quiz-question-text {
    color: var(--text-primary-dark, #f9fafb);
  }

  .quiz-self .quiz-question-marks {
    color: var(--text-muted-dark, #6b7280);
  }

  .quiz-self-textarea {
    background: var(--bg-secondary-dark, #1f2937);
    border-color: var(--border-dark, #374151);
    color: var(--text-primary-dark, #f9fafb);
  }

  .quiz-self-textarea:hover {
    border-color: var(--border-light-dark, #4b5563);
  }

  .quiz-self-textarea:focus {
    background: var(--bg-primary-dark, #111827);
  }

  .quiz-self.quiz-submitted .quiz-self-textarea {
    background: var(--bg-tertiary-dark, #111827);
  }

  .quiz-self-word-count {
    color: var(--text-muted-dark, #6b7280);
  }

  .quiz-self-word-count-current {
    color: var(--text-secondary-dark, #9ca3af);
  }

  .quiz-mark-scheme {
    background: var(--bg-secondary-dark, #1f2937);
    border-color: var(--border-dark, #374151);
  }

  .quiz-mark-scheme h4 {
    color: var(--accent-light, #60a5fa);
  }

  .quiz-mark-scheme li {
    color: var(--text-primary-dark, #f9fafb);
    border-bottom-color: var(--border-dark, #374151);
  }

  .quiz-mark-scheme .mark-value {
    color: var(--text-muted-dark, #6b7280);
  }

  .quiz-self-assessment {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
  }

  .quiz-self-assessment-title {
    color: var(--accent-light, #60a5fa);
  }

  .quiz-self-assessment-text {
    color: var(--text-secondary-dark, #9ca3af);
  }

  .quiz-self-mark-btn {
    background: var(--bg-secondary-dark, #1f2937);
    border-color: var(--border-dark, #374151);
    color: var(--text-primary-dark, #f9fafb);
  }

  .quiz-self-mark-btn:hover {
    background: rgba(59, 130, 246, 0.2);
  }

  .quiz-self .quiz-feedback {
    background: rgba(59, 130, 246, 0.15);
    color: var(--text-secondary-dark, #9ca3af);
  }
}

/* ==================== MOBILE RESPONSIVE ==================== */

@media (max-width: 640px) {
  .quiz-self .quiz-question-text {
    font-size: var(--font-base, 1rem);
  }

  .quiz-self-textarea {
    min-height: 250px;
    padding: var(--space-sm, 0.75rem);
    font-size: var(--font-sm, 0.875rem);
  }

  .quiz-mark-scheme {
    padding: var(--space-sm, 0.75rem);
  }

  .quiz-mark-scheme li {
    font-size: var(--font-xs, 0.75rem);
    padding: var(--space-xs, 0.375rem) 0;
  }

  .quiz-self-assessment {
    padding: var(--space-sm, 0.75rem);
  }

  .quiz-self-mark-btn {
    min-width: 40px;
    height: 40px;
    font-size: var(--font-sm, 0.875rem);
  }

  .quiz-self .quiz-btn-submit {
    width: 100%;
    padding: var(--space-md, 0.75rem);
  }

  .quiz-self .quiz-feedback {
    font-size: var(--font-xs, 0.75rem);
    padding: var(--space-sm, 0.5rem);
  }
}

/* ==================== ACCESSIBILITY ==================== */

/* High contrast mode support */
@media (prefers-contrast: high) {
  .quiz-self-textarea {
    border-width: 3px;
  }

  .quiz-mark-scheme {
    border-width: 2px;
    border-left-width: 4px;
  }

  .quiz-self-mark-btn {
    border-width: 3px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .quiz-self,
  .quiz-self-input-container,
  .quiz-self-textarea,
  .quiz-mark-scheme,
  .quiz-self-assessment,
  .quiz-self-mark-btn,
  .quiz-self .quiz-question-stem {
    transition: none;
    animation: none;
  }

  .quiz-self-mark-btn:hover,
  .quiz-self .quiz-btn-submit:hover {
    transform: none;
  }
}

/* ==================== DRAWING INSTRUCTION ==================== */
.quiz-self-instruction {
  display: flex;
  align-items: center;
  gap: var(--space-md, 1rem);
  padding: var(--space-md, 1rem);
  margin-bottom: var(--space-lg, 1.5rem);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-md, 0.5rem);
  backdrop-filter: blur(4px);
}

.instruction-icon {
  font-size: var(--font-xl, 1.5rem);
}

.instruction-text {
  font-size: var(--font-base, 1rem);
  font-weight: 600;
  color: var(--accent, #2563EB);
}

.quiz-self-confirmation {
  padding: var(--space-lg, 1.25rem);
  text-align: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md, 0.5rem);
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.quiz-self-confirmation p {
  color: var(--text-secondary, #64748b);
  font-size: var(--font-base, 1rem);
  line-height: 1.6;
}

/* Enhanced Mark Scheme with Checkboxes */
.mark-scheme-title {
  margin: 0 0 var(--space-md, 1rem) 0;
  font-size: var(--font-base, 1rem);
  font-weight: 700;
  color: var(--accent, #2563EB);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mark-scheme-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mark-scheme-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  padding: var(--space-sm, 0.75rem) 0;
  font-size: var(--font-base, 1rem);
  color: var(--text-primary, #1f2937);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mark-scheme-item:last-child {
  border-bottom: none;
}

/* Checkbox styling */
.self-score-checkbox {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--accent, #2563EB);
}

.mark-scheme-item label {
  flex: 1;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mark-scheme-item label:hover {
  color: var(--accent, #2563EB);
}

/* Self score total */
.self-score-total {
  margin-top: var(--space-lg, 1.25rem);
  padding-top: var(--space-md, 1rem);
  border-top: 2px solid rgba(59, 130, 246, 0.2);
  text-align: center;
  font-size: var(--font-lg, 1.125rem);
  font-weight: 700;
  color: var(--accent, #2563EB);
}

.self-score-total span {
  font-size: var(--font-xl, 1.25rem);
  color: var(--success, #22c55e);
}