/* adaptive-style.css v1 — Adaptive Practice System
   All classes prefixed .adp- to avoid collision
   6 views: setup / practice / knowledge / compare / feedback / complete
   Print-compatible for PDF export */

/* ===== Layout ===== */
.adp-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
}

/* ===== View Transitions ===== */
.adp-view {
  display: none;
}
.adp-view.active {
  display: block;
}

/* ===== Setup View ===== */
.adp-setup-header {
  margin-bottom: 20px;
}
.adp-setup-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.adp-setup-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.adp-profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.adp-profile-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: border-color 0.2s;
}
.adp-profile-card.weak {
  border-left: 3px solid var(--wrong);
}
.adp-profile-card.medium {
  border-left: 3px solid var(--warning);
}
.adp-profile-card.strong {
  border-left: 3px solid var(--correct);
}

.adp-profile-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 4px;
}
.adp-profile-stats {
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.adp-profile-bar {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 8px;
}
.adp-profile-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s;
}
.adp-profile-fill.weak {
  background: var(--wrong);
}
.adp-profile-fill.medium {
  background: var(--warning);
}
.adp-profile-fill.strong {
  background: var(--correct);
}

.adp-tier-label {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  display: inline-block;
  margin-top: 6px;
}
.adp-tier-label.weak {
  background: var(--wrong-bg);
  color: var(--wrong);
}
.adp-tier-label.medium {
  background: var(--warning-bg);
  color: var(--warning);
}
.adp-tier-label.strong {
  background: var(--correct-bg);
  color: var(--correct);
}

.adp-generate-btn {
  display: block;
  margin: 0 auto;
  padding: 12px 32px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}
.adp-generate-btn:hover {
  opacity: 0.85;
}
.adp-generate-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== Practice View ===== */
.adp-progress-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.adp-progress-track {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.adp-progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.3s;
}
.adp-progress-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.adp-practice-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 16px;
}

.adp-passage-pane {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  max-height: 60vh;
  overflow-y: auto;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text);
}
.adp-passage-pane .adp-passage-text {
  white-space: pre-wrap;
}

.adp-question-pane {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.adp-q-text {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 14px;
  color: var(--text);
}
.adp-q-meta {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.adp-q-badge {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}
.adp-q-badge.easy {
  background: var(--correct-bg);
  color: var(--correct);
}
.adp-q-badge.medium {
  background: var(--warning-bg);
  color: var(--warning);
}
.adp-q-badge.hard {
  background: var(--wrong-bg);
  color: var(--wrong);
}
.adp-q-badge.module {
  background: var(--primary-light);
  color: var(--primary);
}

.adp-choices {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.adp-choice {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.88rem;
  color: var(--text);
}
.adp-choice:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.adp-choice.selected {
  border-color: var(--primary);
  background: var(--primary-light);
}
.adp-choice.correct {
  border-color: var(--correct);
  background: var(--correct-bg);
}
.adp-choice.wrong {
  border-color: var(--wrong);
  background: var(--wrong-bg);
}
.adp-choice-label {
  font-weight: 700;
  min-width: 20px;
  color: var(--text-secondary);
}
.adp-choice.correct .adp-choice-label {
  color: var(--correct);
}
.adp-choice.wrong .adp-choice-label {
  color: var(--wrong);
}

.adp-flag-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.78rem;
}
.adp-flag-btn.flagged {
  border-color: var(--warning);
  color: var(--warning);
  background: var(--warning-bg);
}

.adp-nav-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}
.adp-nav-btn {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.88rem;
}
.adp-nav-btn:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
}
.adp-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.adp-nav-btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== Knowledge View ===== */
.adp-knowledge-header {
  margin-bottom: 16px;
}
.adp-knowledge-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}
.adp-knowledge-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.adp-accordion {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.adp-acc-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.adp-acc-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.adp-acc-header:hover {
  background: var(--bg);
}
.adp-acc-arrow {
  transition: transform 0.2s;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.adp-acc-item.open .adp-acc-arrow {
  transform: rotate(90deg);
}
.adp-acc-q-text {
  flex: 1;
  font-size: 0.88rem;
  color: var(--text);
}
.adp-acc-result {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
}
.adp-acc-result.wrong {
  background: var(--wrong-bg);
  color: var(--wrong);
}
.adp-acc-result.correct {
  background: var(--correct-bg);
  color: var(--correct);
}

.adp-acc-body {
  display: none;
  padding: 0 16px 16px;
  border-top: 1px solid var(--border);
}
.adp-acc-item.open .adp-acc-body {
  display: block;
}

.adp-card-section {
  margin-top: 12px;
  padding: 12px;
  background: var(--bg);
  border-radius: 8px;
}
.adp-card-type {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.adp-card-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.adp-card-content {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
}
.adp-card-roots {
  font-size: 0.8rem;
  color: var(--primary);
  margin-top: 8px;
  font-style: italic;
}
.adp-card-rules {
  margin-top: 8px;
  padding-left: 16px;
}
.adp-card-rules li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

/* ===== Compare View ===== */
.adp-compare-header {
  margin-bottom: 16px;
}
.adp-compare-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
}
.adp-compare-score {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 24px;
}
.adp-score-box {
  text-align: center;
  padding: 20px 32px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.adp-score-num {
  font-size: 2rem;
  font-weight: 700;
}
.adp-score-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.adp-compare-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}
.adp-compare-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.adp-compare-module {
  width: 160px;
  font-size: 0.82rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}
.adp-compare-bars {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.adp-bar-pre,
.adp-bar-post {
  height: 10px;
  border-radius: 5px;
  transition: width 0.5s;
}
.adp-bar-pre {
  background: var(--text-tertiary);
}
.adp-bar-post.improved {
  background: var(--correct);
}
.adp-bar-post.same {
  background: var(--warning);
}
.adp-bar-post.declined {
  background: var(--wrong);
}

.adp-compare-delta {
  width: 50px;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 600;
}
.adp-compare-delta.up {
  color: var(--correct);
}
.adp-compare-delta.same {
  color: var(--text-secondary);
}
.adp-compare-delta.down {
  color: var(--wrong);
}

.adp-compare-legend {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.adp-legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}
.adp-legend-dot.pre {
  background: var(--text-tertiary);
}
.adp-legend-dot.post {
  background: var(--correct);
}

/* ===== Feedback View ===== */
.adp-feedback-form {
  max-width: 600px;
  margin: 0 auto;
}
.adp-feedback-header {
  margin-bottom: 20px;
}
.adp-feedback-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
}

.adp-fb-group {
  margin-bottom: 20px;
}
.adp-fb-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

/* Star rating */
.adp-stars {
  display: flex;
  gap: 6px;
}
.adp-star {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-radius: 50%;
  background: var(--card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.15s;
}
.adp-star:hover {
  border-color: var(--warning);
  color: var(--warning);
}
.adp-star.active {
  background: var(--warning);
  border-color: var(--warning);
  color: #fff;
}

/* Dropdowns */
.adp-fb-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  font-size: 0.88rem;
}

/* Checkbox grid */
.adp-checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.adp-checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
  transition: all 0.15s;
}
.adp-checkbox-item:hover {
  border-color: var(--primary);
}
.adp-checkbox-item.checked {
  border-color: var(--primary);
  background: var(--primary-light);
}
.adp-checkbox-dot {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-radius: 3px;
  flex-shrink: 0;
}
.adp-checkbox-item.checked .adp-checkbox-dot {
  background: var(--primary);
  border-color: var(--primary);
}

/* Comment textarea */
.adp-fb-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  font-size: 0.85rem;
  resize: vertical;
  min-height: 60px;
  font-family: var(--font);
}

.adp-fb-submit {
  display: block;
  width: 100%;
  padding: 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
}
.adp-fb-submit:hover {
  opacity: 0.85;
}

/* ===== Complete View ===== */
.adp-complete-wrap {
  text-align: center;
  padding: 40px 20px;
}
.adp-complete-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}
.adp-complete-wrap h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.adp-complete-summary {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}
.adp-complete-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.adp-action-btn {
  padding: 10px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.88rem;
}
.adp-action-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.adp-action-btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== Session History ===== */
.adp-history {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.adp-history h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.adp-history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.adp-history-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
}
.adp-history-date {
  color: var(--text-secondary);
  min-width: 80px;
}
.adp-history-score {
  font-weight: 600;
}

/* ===== Print / PDF ===== */
@media print {
  .adp-container {
    max-width: 100%;
    padding: 0;
  }
  .adp-generate-btn,
  .adp-nav-row,
  .adp-fb-submit,
  .adp-action-btn,
  .adp-flag-btn {
    display: none;
  }
  .adp-view {
    display: block !important;
    page-break-before: always;
  }
  .adp-view:first-child {
    page-break-before: auto;
  }
  .adp-profile-card,
  .adp-acc-item,
  .adp-card-section {
    break-inside: avoid;
  }
  .adp-passage-pane {
    max-height: none;
    overflow: visible;
  }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .adp-practice-split {
    grid-template-columns: 1fr;
  }
  .adp-profile-grid {
    grid-template-columns: 1fr 1fr;
  }
  .adp-compare-score {
    flex-direction: column;
    align-items: center;
  }
  .adp-checkbox-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 480px) {
  .adp-profile-grid {
    grid-template-columns: 1fr;
  }
}