/**
 * Notebook Editor Styles
 * Styles for the My Notebooks list and Edit Notebook pages
 */

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */

.empty-state {
  text-align: center;
  padding: var(--spacing-16) var(--spacing-6);
  max-width: 400px;
  margin: 0 auto;
}

.empty-state-icon {
  color: var(--color-gray-300);
  margin-bottom: var(--spacing-6);
}

.empty-state h2 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.empty-state p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
}

/* ==========================================================================
   ERROR STATE
   ========================================================================== */

.error-state {
  text-align: center;
  padding: var(--spacing-16) var(--spacing-6);
  max-width: 400px;
  margin: 0 auto;
}

.error-state h2 {
  font-size: var(--font-size-2xl);
  color: var(--color-error);
  margin-bottom: var(--spacing-2);
}

.error-state p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
}

/* ==========================================================================
   NOTEBOOKS LIST
   ========================================================================== */

.notebooks-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.notebooks-header h2 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  margin: 0;
}

.notebooks-actions {
  display: flex;
  gap: var(--spacing-2);
}

.notebooks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-6);
}

/* ==========================================================================
   NOTEBOOK CARD
   ========================================================================== */

.notebook-card {
  background-color: var(--color-bg-primary);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-5);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.notebook-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.notebook-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-3);
}

.notebook-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-2) 0;
  line-height: var(--line-height-tight);
}

.notebook-situation {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-3) 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.notebook-meta {
  margin-bottom: var(--spacing-4);
}

.notebook-meta .date {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.notebook-card-actions {
  display: flex;
  gap: var(--spacing-2);
}

.word-count {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ==========================================================================
   SITUATION BADGES
   ========================================================================== */

.situation-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  text-transform: capitalize;
}

.situation-medical {
  background-color: #fee2e2;
  color: #991b1b;
}

.situation-social {
  background-color: #dbeafe;
  color: #1e40af;
}

.situation-shopping {
  background-color: #fef3c7;
  color: #92400e;
}

.situation-dining {
  background-color: #ffedd5;
  color: #9a3412;
}

.situation-services {
  background-color: #e0e7ff;
  color: #3730a3;
}

.situation-travel {
  background-color: #ccfbf1;
  color: #115e59;
}

.situation-recreation {
  background-color: #f3e8ff;
  color: #6b21a8;
}

.situation-phone {
  background-color: #d1fae5;
  color: #065f46;
}

.situation-religious {
  background-color: #fae8ff;
  color: #86198f;
}

.situation-financial {
  background-color: #ecfccb;
  color: #3f6212;
}

.situation-general {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
}

/* ==========================================================================
   DANGER BUTTON
   ========================================================================== */

.btn-danger {
  background-color: transparent;
  color: var(--color-error);
  border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
}

/* ==========================================================================
   EDITOR LAYOUT
   ========================================================================== */

.editor-header {
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-4);
  border-bottom: var(--border-width) solid var(--color-border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  text-decoration: none;
  margin-bottom: var(--spacing-4);
}

.back-link:hover {
  text-decoration: underline;
}

.editor-title-row {
  display: flex;
  gap: var(--spacing-3);
  align-items: center;
  margin-bottom: var(--spacing-3);
}

.notebook-name-input {
  flex: 1;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  padding: var(--spacing-2) var(--spacing-3);
  border: var(--border-width-2) solid transparent;
  border-radius: var(--radius-md);
  background-color: transparent;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.notebook-name-input:hover {
  background-color: var(--color-bg-secondary);
}

.notebook-name-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--color-bg-primary);
}

.editor-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.editor-situation {
  font-style: italic;
  color: var(--color-text-secondary);
  margin-top: var(--spacing-3);
}

.editor-instructions {
  background-color: var(--color-info-light);
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-6);
}

.editor-instructions p {
  font-size: var(--font-size-sm);
  color: var(--color-info);
  margin: 0;
}

/* ==========================================================================
   EDITOR SECTIONS
   ========================================================================== */

.editor-sections {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.editor-section {
  background-color: var(--color-bg-primary);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-5);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.section-header h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

/* ==========================================================================
   WORD CHIPS
   ========================================================================== */

.word-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.word-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-2) var(--spacing-3);
  background-color: var(--color-bg-secondary);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.word-chip:hover {
  background-color: var(--color-error-light);
  border-color: var(--color-error);
  color: var(--color-error);
}

.word-chip .remove-icon {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.word-chip:hover .remove-icon {
  opacity: 1;
}

.word-chip.removing {
  background-color: var(--color-error-light);
  border-color: var(--color-error);
  opacity: 0.7;
}

/* Phrase chips (wider) */
.phrase-chips .word-chip {
  border-radius: var(--radius-lg);
}

/* ==========================================================================
   ADD WORD FORM
   ========================================================================== */

.add-word-form {
  display: flex;
  gap: var(--spacing-2);
  margin-top: var(--spacing-3);
  padding-top: var(--spacing-3);
  border-top: var(--border-width) dashed var(--color-border);
}

.add-word-form.hidden {
  display: none;
}

.add-word-input {
  flex: 1;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
  border: var(--border-width-2) solid var(--color-border);
  border-radius: var(--radius-lg);
  min-height: 36px;
}

.add-word-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--focus-ring-color);
}

/* ==========================================================================
   EDITOR FOOTER
   ========================================================================== */

.editor-footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  margin-top: var(--spacing-8);
  padding-top: var(--spacing-6);
  border-top: var(--border-width) solid var(--color-border);
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */

.toast {
  position: fixed;
  bottom: var(--spacing-6);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--color-gray-800);
  color: var(--color-text-inverse);
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-toast);
  opacity: 0;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   SAVE STATUS INDICATOR
   ========================================================================== */

.save-status {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-sm);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-secondary);
  transition: all var(--transition-fast);
}

.save-status-saving {
  color: var(--color-info);
}

.save-status-saving::before {
  content: '';
  width: 12px;
  height: 12px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.save-status-saved {
  color: var(--color-success);
}

.save-status-saved::before {
  content: '✓';
  font-weight: var(--font-weight-bold);
}

.save-status-error {
  color: var(--color-error);
  background-color: var(--color-error-light);
}

.save-status-error::before {
  content: '!';
  font-weight: var(--font-weight-bold);
}

/* ==========================================================================
   EDITABLE SECTION NAME
   ========================================================================== */

.section-name-editable {
  cursor: text;
  padding: var(--spacing-1) var(--spacing-2);
  margin: calc(-1 * var(--spacing-1)) calc(-1 * var(--spacing-2));
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  min-width: 100px;
  outline: none;
}

.section-name-editable:hover {
  background-color: var(--color-bg-secondary);
}

.section-name-editable:focus {
  background-color: var(--color-bg-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--focus-ring-color);
}

/* ==========================================================================
   SECTION ACTIONS
   ========================================================================== */

.section-actions {
  display: flex;
  gap: var(--spacing-2);
  align-items: center;
}

.delete-section-btn {
  padding: var(--spacing-2);
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  opacity: 0.6;
  transition: all var(--transition-fast);
}

.delete-section-btn:hover {
  color: var(--color-error);
  background-color: var(--color-error-light);
  opacity: 1;
}

.delete-section-btn svg {
  width: 18px;
  height: 18px;
  display: block;
}

/* ==========================================================================
   WORD REVIEW PANEL (AI SUGGESTIONS)
   ========================================================================== */

.word-review-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4);
  z-index: var(--z-modal);
}

.word-review-panel {
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.word-review-header {
  padding: var(--spacing-5);
  border-bottom: var(--border-width) solid var(--color-border);
}

.word-review-header h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin: 0 0 var(--spacing-2) 0;
}

.word-review-header p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.word-review-content {
  padding: var(--spacing-5);
  overflow-y: auto;
  flex: 1;
}

.word-review-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.word-chip-selectable {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background-color: var(--color-primary-light);
  border: var(--border-width-2) solid var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.word-chip-selectable:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.word-chip-selectable::after {
  content: '✓';
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
}

.word-chip-selectable[aria-pressed="false"],
.word-chip-deselected {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-border);
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.word-chip-selectable[aria-pressed="false"]::after,
.word-chip-deselected::after {
  content: '✕';
}

.word-review-count {
  margin-top: var(--spacing-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.word-review-footer {
  padding: var(--spacing-4) var(--spacing-5);
  border-top: var(--border-width) solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-3);
}

/* ==========================================================================
   ADD SECTION FORM
   ========================================================================== */

.add-section-container {
  margin-top: var(--spacing-6);
  text-align: center;
}

.add-section-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-4) var(--spacing-6);
  background-color: var(--color-bg-secondary);
  border: var(--border-width-2) dashed var(--color-border);
  border-radius: var(--radius-xl);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.add-section-btn:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.add-section-btn svg {
  width: 20px;
  height: 20px;
}

.add-section-form-panel {
  background-color: var(--color-bg-primary);
  border: var(--border-width-2) solid var(--color-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  margin-top: var(--spacing-4);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.add-section-form-panel.hidden {
  display: none;
}

.add-section-form-panel h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin: 0 0 var(--spacing-4) 0;
}

.add-section-form-panel label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-2);
  font-size: var(--font-size-sm);
}

.add-section-form-panel input,
.add-section-form-panel textarea {
  width: 100%;
  padding: var(--spacing-3);
  border: var(--border-width-2) solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-4);
  font-family: inherit;
}

.add-section-form-panel input:focus,
.add-section-form-panel textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--focus-ring-color);
}

.add-section-form-panel textarea {
  min-height: 100px;
  resize: vertical;
}

.add-section-form-actions {
  display: flex;
  gap: var(--spacing-3);
  justify-content: flex-end;
}

/* ==========================================================================
   GENERATE WORDS FORM (FOR EXISTING SECTIONS)
   ========================================================================== */

.generate-words-form {
  margin-top: var(--spacing-4);
  padding: var(--spacing-4);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.generate-words-form.hidden {
  display: none;
}

.generate-words-form label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-2);
}

.generate-words-form input {
  width: 100%;
  padding: var(--spacing-2) var(--spacing-3);
  border: var(--border-width-2) solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-3);
}

.generate-words-form input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--focus-ring-color);
}

.generate-words-form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-3);
}

.generate-words-form-actions {
  display: flex;
  gap: var(--spacing-2);
}

/* ==========================================================================
   LOADING STATE
   ========================================================================== */

.generating-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-8);
  text-align: center;
}

.generating-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: var(--spacing-4);
}

.generating-state p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   QUICK ADD LINK
   ========================================================================== */

.quick-add-link {
  display: inline-block;
  margin-top: var(--spacing-3);
  padding: var(--spacing-2) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.quick-add-link:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   RESPONSIVE ADJUSTMENTS
   ========================================================================== */

@media (max-width: 640px) {
  .notebooks-header {
    flex-direction: column;
    align-items: stretch;
  }

  .notebooks-actions {
    justify-content: center;
  }

  .notebooks-grid {
    grid-template-columns: 1fr;
  }

  .editor-title-row {
    flex-direction: column;
    align-items: stretch;
  }

  .editor-footer {
    flex-direction: column;
  }

  .editor-footer .btn {
    width: 100%;
    justify-content: center;
  }

  .add-word-form {
    flex-direction: column;
  }
}