/* ==========================================================================
   Claude Mastery Lab - Component Styles
   ========================================================================== */

/* Search & Filter Toolbar */
.filter-toolbar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.search-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  font-size: 1rem;
}

.search-input {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  padding: 14px 16px 14px 44px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--claude-terracotta);
  box-shadow: 0 0 0 3px var(--claude-terracotta-glow);
  background: var(--bg-surface-elevated);
}

.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cat-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 9999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.cat-pill:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.cat-pill.active {
  background: rgba(218, 119, 86, 0.15);
  color: var(--claude-terracotta);
  border-color: var(--claude-terracotta);
  font-weight: 600;
}

.cat-pill .count {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 9999px;
}

/* Tip Cards Grid */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.tip-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.tip-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--claude-terracotta);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tip-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-md);
  background: var(--bg-surface-hover);
}

.tip-card:hover::before {
  opacity: 1;
}

.tip-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.tip-number-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--claude-terracotta);
  background: rgba(218, 119, 86, 0.12);
  padding: 4px 10px;
  border-radius: 6px;
}

.tip-card-actions {
  display: flex;
  gap: 8px;
}

.card-action-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 4px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.card-action-icon:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}

.card-action-icon.active {
  color: var(--claude-amber);
}

.card-action-icon.mastered-active {
  color: var(--accent-green);
}

.tip-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.tip-card-summary {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 18px;
  flex: 1;
}

.tip-card-snippet {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tip-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}

.tip-category-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.tip-learn-more {
  font-size: 0.82rem;
  color: var(--claude-terracotta);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Modal / Deep Dive Drawer */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 20px;
  max-width: 840px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: sticky;
  top: 0;
  background: var(--bg-surface);
  z-index: 10;
}

.modal-title-group {
  flex: 1;
  padding-right: 20px;
}

.modal-tip-id {
  font-family: var(--font-mono);
  color: var(--claude-terracotta);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.modal-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.modal-close-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.modal-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.deep-dive-markdown {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.deep-dive-markdown h2,
.deep-dive-markdown h3,
.deep-dive-markdown h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  margin: 18px 0 10px;
}

.deep-dive-markdown h3 {
  font-size: 1.18rem;
  color: var(--claude-terracotta);
}

.deep-dive-markdown p {
  margin-bottom: 12px;
  line-height: 1.65;
}

.deep-dive-markdown ul,
.deep-dive-markdown ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.deep-dive-markdown li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.deep-dive-markdown strong {
  color: var(--text-primary);
  font-weight: 700;
}

.deep-dive-markdown code {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  color: var(--accent-cyan);
  padding: 2px 6px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* Before / After Comparison Widget */
.comparison-box {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
}

.comparison-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.comp-tab-bad {
  padding: 12px 16px;
  background: rgba(244, 63, 94, 0.08);
  color: var(--accent-rose);
  border-right: 1px solid var(--border-subtle);
}

.comp-tab-good {
  padding: 12px 16px;
  background: rgba(16, 185, 129, 0.08);
  color: var(--accent-green);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.comp-pane {
  padding: 18px;
  font-size: 0.88rem;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comp-pane.pane-bad {
  border-right: 1px solid var(--border-subtle);
  background: rgba(244, 63, 94, 0.02);
}

.comp-pane.pane-good {
  background: rgba(16, 185, 129, 0.02);
}

.comp-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  font-weight: 700;
}

.comp-code-prompt {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.comp-code-output {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 10px;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-primary);
  white-space: pre-wrap;
}

.modal-footer {
  padding: 20px 28px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-surface);
}

/* Buttons */
.btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--claude-terracotta);
  color: #ffffff;
  box-shadow: 0 2px 10px var(--claude-terracotta-glow);
}

.btn-primary:hover {
  background: var(--claude-terracotta-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--claude-terracotta-glow);
}

.btn-outline {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--bg-surface-hover);
  border-color: var(--claude-terracotta);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--text-primary);
}

/* Playground / Transformer View */
.playground-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 60px;
}

.playground-panel {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sample-selector {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sample-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sample-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.prompt-textarea {
  width: 100%;
  min-height: 140px;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  resize: vertical;
  line-height: 1.5;
}

.prompt-textarea:focus {
  outline: none;
  border-color: var(--claude-terracotta);
}

/* Toggle Modifiers List */
.modifiers-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modifier-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 12px 16px;
  border-radius: 10px;
  transition: border-color var(--transition-fast);
}

.modifier-row:hover {
  border-color: var(--border-medium);
}

.modifier-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mod-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.mod-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Switch Toggle */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  transition: .2s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-secondary);
  transition: .2s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--claude-terracotta);
  border-color: var(--claude-terracotta);
}

input:checked + .slider:before {
  transform: translateX(20px);
  background-color: #ffffff;
}

/* Reading Age Slider */
.slider-range-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 12px 16px;
  border-radius: 10px;
}

.range-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  font-weight: 600;
}

.range-input {
  width: 100%;
  accent-color: var(--claude-terracotta);
  cursor: pointer;
}

/* Live Output Display */
.output-code-block {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-primary);
  min-height: 200px;
  max-height: 400px;
  overflow-y: auto;
  white-space: pre-wrap;
  position: relative;
}

/* Quiz Component */
.quiz-container-box {
  max-width: 760px;
  margin: 0 auto 60px;
}

.quiz-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-medium);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.quiz-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-main);
  border-radius: 9999px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--claude-amber), var(--claude-terracotta));
  transition: width 0.3s ease;
}

.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.quiz-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--claude-amber);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.quiz-score-indicator {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.quiz-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
}

.quiz-scenario {
  background: var(--bg-main);
  border-left: 3px solid var(--claude-amber);
  border-radius: 0 8px 8px 0;
  padding: 14px 18px;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.scenario-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--claude-amber);
  margin-bottom: 4px;
}

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

.quiz-option-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 14px 18px;
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  text-align: left;
  transition: all var(--transition-fast);
}

.quiz-option-btn:hover:not(:disabled) {
  background: var(--bg-surface-elevated);
  border-color: var(--border-medium);
}

.quiz-option-btn.correct {
  background: rgba(16, 185, 129, 0.15) !important;
  border-color: var(--accent-green) !important;
  color: #ffffff;
}

.quiz-option-btn.incorrect {
  background: rgba(244, 63, 94, 0.15) !important;
  border-color: var(--accent-rose) !important;
  color: #ffffff;
}

.option-letter {
  background: rgba(255, 255, 255, 0.08);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.feedback-box {
  border-radius: 12px;
  padding: 16px;
  margin-top: 10px;
}

.feedback-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.feedback-error {
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.feedback-title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.feedback-reason {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.feedback-tip-tag {
  font-size: 0.78rem;
  color: var(--claude-terracotta);
  margin-top: 8px;
  font-weight: 600;
}

.quiz-results-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-medium);
  border-radius: 20px;
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.results-badge-icon {
  font-size: 3.5rem;
}

.results-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
}

.results-score-display {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-display);
  color: var(--claude-terracotta);
}

.certification-badge {
  background: var(--bg-surface);
  border: 2px solid;
  border-radius: 12px;
  padding: 16px 28px;
  margin: 12px 0;
}

.cert-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
}

.cert-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* XML Builder View */
.builder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 60px;
}

.builder-inputs-pane {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.builder-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.builder-tag-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--claude-terracotta);
  display: flex;
  justify-content: space-between;
}

.builder-textarea {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.88rem;
  resize: vertical;
  min-height: 64px;
}

.builder-textarea:focus {
  outline: none;
  border-color: var(--claude-terracotta);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--claude-terracotta);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.88rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideUp 0.25s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}