/* ============================================================================
   Menu Editor A4 - Elegant Restaurant Menu Design
   Inspired by upscale Italian restaurant menus
   ============================================================================ */

/* CSS Variables for Menu Theme */
:root {
  --menu-bg: linear-gradient(135deg, #faf8f5 0%, #f5f0e8 100%);
  --menu-paper: #fdfcfa;
  --menu-accent: #8B4513;
  --menu-gold: #D4AF37;
  --menu-category: #2C1810;
  --menu-text: #3d3027;
  --menu-muted: #7a6b5e;
  --menu-available: #2E7D32;
  --menu-unavailable: #C62828;
  --menu-border: #e8e0d5;
  --menu-shadow: rgba(139, 69, 19, 0.15);
  --menu-spine: #654321;
}

[data-theme="dark"] {
  --menu-bg: linear-gradient(135deg, #1a1612 0%, #252018 100%);
  --menu-paper: #2a241d;
  --menu-accent: #D4A574;
  --menu-gold: #F0C850;
  --menu-category: #E8D5B7;
  --menu-text: #d4c4b0;
  --menu-muted: #9a8b7a;
  --menu-available: #4CAF50;
  --menu-unavailable: #EF5350;
  --menu-border: #3d352a;
  --menu-shadow: rgba(0, 0, 0, 0.4);
  --menu-spine: #4a3f2f;
}

/* Main Container */
.menu-editor {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

/* Header */
.menu-editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.page-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--menu-category);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-title .icon {
  font-size: 1.5rem;
}

.restaurant-name {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  color: var(--menu-muted);
  font-style: italic;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--menu-accent);
  color: white;
}

.btn-primary:hover {
  background: #6d3710;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--menu-border);
  color: var(--menu-text);
}

.btn-secondary:hover {
  background: var(--menu-muted);
  color: white;
}

.btn .icon {
  font-size: 1rem;
}

/* Category Tabs */
.category-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 0.5rem;
  background: var(--menu-border);
  border-radius: 12px;
  overflow-x: auto;
}

.category-tabs .tab {
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--menu-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.category-tabs .tab:hover {
  color: var(--menu-text);
}

.category-tabs .tab.active {
  background: var(--menu-paper);
  color: var(--menu-accent);
  box-shadow: 0 2px 8px var(--menu-shadow);
}

/* Menu Book Container */
.menu-book-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.menu-book {
  display: flex;
  max-width: 1000px;
  width: 100%;
  perspective: 2000px;
}

/* Menu Pages */
.menu-page {
  flex: 1;
  background: var(--menu-paper);
  padding: 2rem;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 20px var(--menu-shadow);
  position: relative;
}

.left-page {
  border-radius: 4px 0 0 4px;
  border-right: 1px solid var(--menu-border);
}

.right-page {
  border-radius: 0 4px 4px 0;
  border-left: 1px solid var(--menu-border);
}

/* Book Spine */
.book-spine {
  width: 20px;
  background: linear-gradient(to right, var(--menu-spine), var(--menu-accent), var(--menu-spine));
  box-shadow: inset 0 0 10px rgba(0,0,0,0.3);
}

/* Page Header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--menu-gold);
}

.page-header .ornament {
  color: var(--menu-gold);
  font-size: 0.75rem;
}

.category-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--menu-category);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 0;
}

/* Menu Items */
.menu-items {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.menu-item {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  padding: 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.menu-item:hover {
  background: rgba(212, 175, 55, 0.1);
}

.menu-item.unavailable {
  opacity: 0.6;
}

.menu-item.unavailable .item-name {
  text-decoration: line-through;
}

.item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.item-name {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--menu-text);
  margin: 0;
  flex: 1;
}

.item-price {
  font-family: 'Libre Baskerville', serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--menu-gold);
  white-space: nowrap;
}

.item-description {
  font-size: 0.8125rem;
  color: var(--menu-muted);
  font-style: italic;
  line-height: 1.4;
}

.item-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.item-allergens {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--menu-unavailable);
}

.item-allergens .icon {
  font-size: 0.875rem;
}

.item-status {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
}

.item-status.available {
  background: rgba(46, 125, 50, 0.15);
  color: var(--menu-available);
}

.item-status.unavailable {
  background: rgba(198, 40, 40, 0.15);
  color: var(--menu-unavailable);
}

.item-requests {
  font-size: 0.75rem;
  color: var(--menu-muted);
}

/* Page Footer */
.page-footer {
  margin-top: auto;
  padding-top: 1rem;
  text-align: center;
}

.page-number {
  font-family: 'Libre Baskerville', serif;
  font-size: 0.875rem;
  color: var(--menu-muted);
}

/* Page Navigation */
.page-navigation {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border: 2px solid var(--menu-border);
  border-radius: 8px;
  background: var(--menu-paper);
  color: var(--menu-text);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-btn:hover:not(:disabled) {
  border-color: var(--menu-accent);
  color: var(--menu-accent);
}

.nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-indicator {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  color: var(--menu-muted);
}

.page-indicator .separator {
  margin: 0 0.25rem;
}

/* Stats Bar */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 3rem;
  padding: 1.5rem;
  margin-top: 2rem;
  background: var(--menu-paper);
  border-radius: 12px;
  box-shadow: 0 2px 10px var(--menu-shadow);
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-family: 'Libre Baskerville', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--menu-accent);
}

.stat-value.stat-available {
  color: var(--menu-available);
}

.stat-value.stat-unavailable {
  color: var(--menu-unavailable);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--menu-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal.open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 500px;
  background: var(--menu-paper);
  border-radius: 16px;
  box-shadow: 0 20px 40px var(--menu-shadow);
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: var(--menu-border);
  border-bottom: 1px solid var(--menu-border);
}

.modal-header h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  color: var(--menu-category);
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--menu-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--menu-accent);
  color: white;
}

.modal-body {
  padding: 1.5rem;
}

/* Form Styles */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--menu-text);
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 2px solid var(--menu-border);
  border-radius: 8px;
  background: var(--menu-paper);
  color: var(--menu-text);
  font-size: 0.9375rem;
  transition: border-color 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--menu-gold);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.check-label {
  font-size: 0.9375rem;
  color: var(--menu-text);
}

/* Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--menu-unavailable);
  border-radius: 26px;
  transition: 0.3s;
}

.slider::before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.3s;
}

input:checked + .slider {
  background: var(--menu-available);
}

input:checked + .slider::before {
  transform: translateX(22px);
}

/* Modal Actions */
.modal-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--menu-border);
}

#btnDeleteItem {
  background: var(--menu-unavailable);
  color: white;
}

#btnDeleteItem:hover {
  background: #a71d2a;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background: var(--menu-paper);
  border-radius: 8px;
  box-shadow: 0 4px 15px var(--menu-shadow);
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-left: 4px solid var(--menu-available);
}

.toast.error {
  border-left: 4px solid var(--menu-unavailable);
}

.toast-message {
  font-size: 0.875rem;
  color: var(--menu-text);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
}

.empty-state .icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state p {
  font-size: 1rem;
  color: var(--menu-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .menu-book {
    flex-direction: column;
  }

  .book-spine {
    width: 100%;
    height: 10px;
    background: linear-gradient(to bottom, var(--menu-spine), var(--menu-accent), var(--menu-spine));
  }

  .left-page,
  .right-page {
    border-radius: 4px;
    border: none;
  }

  .left-page {
    border-bottom: none;
  }

  .right-page {
    border-top: none;
  }
}

@media (max-width: 600px) {
  .menu-editor {
    padding: 1rem;
  }

  .header-actions .label {
    display: none;
  }

  .stats-bar {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .page-navigation .label {
    display: none;
  }
}

/* Print Styles */
@media print {
  .menu-editor-header,
  .category-tabs,
  .page-navigation,
  .stats-bar,
  .header-actions,
  .item-status,
  .item-requests {
    display: none !important;
  }

  .menu-page {
    box-shadow: none;
    page-break-inside: avoid;
  }

  .menu-item:hover {
    background: none;
  }
}

/* ==========================================================================
   Preview Modal
   ========================================================================== */

.preview-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}

.preview-modal.open {
  display: flex;
}

.preview-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
}

.preview-content {
  position: relative;
  width: 95%;
  max-width: 900px;
  max-height: 90vh;
  background: var(--menu-bg);
  border-radius: 16px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: var(--menu-accent);
  color: white;
}

.preview-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

.preview-title .icon {
  font-size: 1.5rem;
}

.preview-close {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 1.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.preview-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  background: var(--menu-paper);
}

.preview-menu {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Preview Category Section */
.preview-category {
  margin-bottom: 1rem;
}

.preview-category-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--menu-accent);
}

.preview-category-icon {
  font-size: 1.75rem;
}

.preview-category-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--menu-accent);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.preview-items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

/* Preview Item Card */
.preview-item {
  background: white;
  border-radius: 12px;
  padding: 1rem 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--menu-border);
  transition: all 0.2s ease;
}

.preview-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.preview-item.unavailable {
  opacity: 0.5;
  background: #f8f8f8;
}

.preview-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.preview-item-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--menu-category);
  margin: 0;
  flex: 1;
}

.preview-item-price {
  font-family: 'Libre Baskerville', serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--menu-accent);
  white-space: nowrap;
}

.preview-item-desc {
  font-size: 0.875rem;
  color: var(--menu-description);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.preview-item-allergens {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

.preview-allergen {
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  background: #fff3cd;
  color: #856404;
  border-radius: 4px;
  font-weight: 500;
}

.preview-item-unavailable {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.25rem 0.75rem;
  background: var(--menu-unavailable);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
  text-transform: uppercase;
}

/* Preview Footer */
.preview-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--menu-bg);
  border-top: 1px solid var(--menu-border);
}

.preview-hint {
  font-size: 0.875rem;
  color: var(--menu-muted);
  font-style: italic;
}

/* Preview Responsive */
@media (max-width: 768px) {
  .preview-content {
    width: 100%;
    height: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .preview-items-grid {
    grid-template-columns: 1fr;
  }

  .preview-footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .preview-hint {
    font-size: 0.75rem;
  }
}