/* ============================================
   MANAGER.CSS - Question Editor
   ============================================ */

/* ========== Manager Container ========== */
.manager-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  min-height: 100vh;
  background: var(--bg-primary);
}

/* ========== Manager Header ========== */
.manager-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.manager-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

.manager-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.manager-header-actions {
  display: flex;
  gap: 0.75rem;
}

/* ========== Manager Toolbar ========== */
.manager-toolbar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.manager-toolbar .btn {
  flex: 0 0 auto;
}

.manager-toolbar-separator {
  width: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 0 0.5rem;
}

/* ========== Question List ========== */
.question-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.question-list-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}

.question-list-empty-icon {
  font-size: 4rem;
  opacity: 0.3;
  margin-bottom: 1rem;
}

.question-list-empty-text {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.question-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  cursor: grab;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

.question-item:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(230, 57, 70, 0.3);
}

.question-item.dragging {
  opacity: 0.5;
  transform: scale(0.98);
  cursor: grabbing;
}

.question-item:active {
  cursor: grabbing;
}

.question-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  color: #ffffff;
  font-size: 1rem;
}

.question-content {
  flex: 1;
  min-width: 0;
}

.question-content-text {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  line-height: 1.5;
  word-break: break-word;
}

.question-options-preview {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
  margin-top: 0.75rem;
}

.question-option-chip {
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.question-option-chip.correct {
  border-color: var(--success);
  background: rgba(42, 157, 143, 0.15);
  color: var(--success);
  font-weight: 600;
}

.question-meta {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.question-meta-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.question-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.question-actions .btn {
  padding: 8px 12px;
  font-size: 0.875rem;
  min-width: auto;
}

/* ========== Question Form ========== */
.question-form {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.question-form-header {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.question-form-section {
  margin-bottom: 1.5rem;
}

.question-form-section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.question-form-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.question-form-option {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.question-form-option.selected {
  border-color: var(--success);
  background: rgba(42, 157, 143, 0.1);
}

.question-form-option-label {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  color: #ffffff;
  font-size: 0.95rem;
}

.question-form-option:nth-child(1) .question-form-option-label {
  background: var(--choice-a);
}

.question-form-option:nth-child(2) .question-form-option-label {
  background: var(--choice-b);
}

.question-form-option:nth-child(3) .question-form-option-label {
  background: var(--choice-c);
}

.question-form-option:nth-child(4) .question-form-option-label {
  background: var(--choice-d);
}

.question-form-option .form-input {
  flex: 1;
  margin-bottom: 0;
}

.question-form-correct-radio {
  accent-color: var(--success);
  width: 20px;
  height: 20px;
  cursor: pointer;
  flex-shrink: 0;
}

.question-form-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.question-form-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== Import Modal ========== */
.import-modal .modal {
  max-width: 700px;
}

.import-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--bg-secondary);
}

.import-tab {
  flex: 1;
  padding: 0.75rem 1rem;
  text-align: center;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  font-weight: 600;
  background: transparent;
  border: none;
  margin-bottom: -2px;
}

.import-tab:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.import-tab.active {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.import-content {
  margin-bottom: 1.5rem;
}

.import-textarea {
  width: 100%;
  min-height: 200px;
  background: var(--bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  padding: 1rem;
  resize: vertical;
  transition: border-color var(--transition-fast);
}

.import-textarea:focus {
  border-color: var(--accent);
  outline: none;
}

.import-textarea::placeholder {
  color: var(--text-muted);
  font-family: var(--font-family);
}

.import-help {
  background: var(--bg-secondary);
  padding: 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.import-help-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.import-help code {
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: monospace;
  color: var(--accent);
}

.import-file-input {
  display: none;
}

.import-file-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem;
  border: 2px dashed var(--text-muted);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  font-weight: 500;
}

.import-file-label:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.import-preview {
  background: var(--bg-secondary);
  padding: 1rem;
  border-radius: var(--radius-md);
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 1rem;
}

.import-preview-title {
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.import-preview-count {
  font-size: 0.875rem;
  color: var(--success);
  margin-bottom: 0.5rem;
}

/* ========== Settings Panel ========== */
.settings-panel {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.settings-section {
  margin-bottom: 1.5rem;
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.settings-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.settings-row:last-child {
  border-bottom: none;
}

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

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .manager-container {
    padding: 1rem;
  }

  .manager-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .manager-toolbar {
    flex-direction: column;
  }

  .manager-toolbar .btn {
    width: 100%;
  }

  .question-item {
    flex-direction: column;
  }

  .question-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .question-form {
    padding: 1.5rem;
  }

  .question-form-meta {
    grid-template-columns: 1fr;
  }

  .question-form-actions {
    flex-direction: column;
  }

  .question-form-actions .btn {
    width: 100%;
  }

  .import-tabs {
    flex-direction: column;
  }

  .import-tab {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .question-form-option {
    flex-wrap: wrap;
  }

  .question-form-option .form-input {
    width: 100%;
  }
}