/* Advanced Placeholder Styles */
.is-editor-empty {
  position: relative;
}

.is-empty {
  position: relative;
}

.is-empty::before {
  color: var(--muted-foreground);
  content: attr(data-placeholder);
  position: absolute;
  left: 0;
  float: none;
  height: auto;
  pointer-events: none;
  font-style: italic;
  opacity: 0.6;
}

/* Specific placeholder styles for different node types */
.is-empty-paragraph::before {
  content: attr(data-placeholder);
}

.is-empty-heading-1::before {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.2;
}

.is-empty-heading-2::before {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
}

.is-empty-heading-3::before {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
}

.is-empty-list-item::before {
  margin-left: 0.5rem;
}

.is-empty-task-item::before {
  margin-left: 2rem;
}

.is-empty-blockquote::before {
  font-style: italic;
  opacity: 0.7;
}

.is-empty-code-block::before {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  opacity: 0.5;
}

/* Enhanced Focus Styles */
.has-focus {
  position: relative;
  outline: none;
}

.focus-transitions .has-focus {
  transition: all 0.2s ease-in-out;
}

.editor-focused .has-focus {
  background-color: rgba(59, 130, 246, 0.05);
  border-radius: 4px;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.focus-ring {
  position: absolute;
  left: -2px;
  top: -2px;
  right: -2px;
  bottom: -2px;
  border: 2px solid rgba(59, 130, 246, 0.3);
  border-radius: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

.editor-focused .focus-ring {
  opacity: 1;
}

.selection-highlight {
  background-color: rgba(59, 130, 246, 0.15);
  border-radius: 2px;
}

.dim-unfocused .ProseMirror > *:not(.has-focus) {
  opacity: 0.6;
  transition: opacity 0.2s ease-in-out;
}

/* Focus mode styles */
.focus-mode {
  background: var(--background);
  color: var(--foreground);
}

.focus-mode .ProseMirror {
  max-width: 65ch;
  margin: 0 auto;
  padding: 2rem;
  line-height: 1.7;
  font-size: 1.1rem;
}

.focus-mode .ProseMirror > *:not(.has-focus) {
  opacity: 0.3;
  transition: opacity 0.3s ease;
}

/* Writing mode styles */
.writing-mode {
  background: #1a1a1a;
  color: #e5e5e5;
}

.writing-mode .ProseMirror {
  background: #1a1a1a;
  color: #e5e5e5;
  max-width: 70ch;
  margin: 0 auto;
  padding: 3rem 2rem;
  line-height: 1.8;
  font-size: 1.125rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.writing-mode .floating-menu,
.writing-mode .bubble-menu,
.writing-mode .toolbar {
  background: #2a2a2a;
  border-color: #404040;
  color: #e5e5e5;
}

/* Enhanced Floating Menu Styles */
.enhanced-floating-menu {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(8px);
  max-width: 400px;
  overflow: hidden;
}

.enhanced-floating-menu .search-input {
  background: var(--muted);
  border: 1px solid var(--input);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 14px;
  transition: all 0.2s ease;
}

.enhanced-floating-menu .search-input:focus {
  outline: none;
  border-color: var(--ring);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.enhanced-floating-menu .category-filter {
  display: flex;
  gap: 4px;
  padding: 8px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.enhanced-floating-menu .category-filter::-webkit-scrollbar {
  display: none;
}

.enhanced-floating-menu .category-button {
  flex-shrink: 0;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.enhanced-floating-menu .category-button.active {
  background: var(--primary);
  color: var(--primary-foreground);
}

.enhanced-floating-menu .menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 6px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.enhanced-floating-menu .menu-item:hover {
  background: var(--accent);
}

.enhanced-floating-menu .menu-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--muted);
  flex-shrink: 0;
}

.enhanced-floating-menu .menu-item-content {
  flex: 1;
  min-width: 0;
}

.enhanced-floating-menu .menu-item-title {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 2px;
}

.enhanced-floating-menu .menu-item-description {
  font-size: 12px;
  color: var(--muted-foreground);
  line-height: 1.3;
}

.enhanced-floating-menu .category-section {
  padding: 8px 0;
}

.enhanced-floating-menu .category-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

/* Mobile Toolbar Styles */
.mobile-toolbar {
  background: var(--background);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(8px);
}

.mobile-toolbar .section-tabs {
  display: flex;
  background: var(--muted/50);
  border-bottom: 1px solid var(--border);
}

.mobile-toolbar .section-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 8px;
  font-size: 11px;
  font-weight: 500;
  border: none;
  background: transparent;
  color: var(--muted-foreground);
  transition: all 0.2s ease;
}

.mobile-toolbar .section-tab.active {
  background: var(--background);
  color: var(--foreground);
  border-bottom: 2px solid var(--primary);
}

.mobile-toolbar .toolbar-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px;
  justify-content: center;
  max-height: 200px;
  overflow-y: auto;
}

.mobile-toolbar .toolbar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 8px;
  min-width: 60px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 500;
  transition: all 0.2s ease;
  background: var(--muted);
  border: 1px solid var(--border);
}

.mobile-toolbar .toolbar-item.active {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}

.mobile-toolbar .toolbar-item:active {
  transform: scale(0.95);
}

/* Safe area for mobile devices */
.mobile-toolbar .safe-area {
  height: env(safe-area-inset-bottom);
  background: var(--background);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .enhanced-floating-menu {
    max-width: calc(100vw - 32px);
    margin: 0 16px;
  }
  
  .focus-mode .ProseMirror,
  .writing-mode .ProseMirror {
    padding: 1.5rem 1rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .enhanced-floating-menu .menu-item {
    padding: 10px;
  }
  
  .enhanced-floating-menu .menu-item-icon {
    width: 28px;
    height: 28px;
  }
  
  .mobile-toolbar .toolbar-items {
    gap: 6px;
    padding: 12px;
  }
  
  .mobile-toolbar .toolbar-item {
    min-width: 50px;
    padding: 10px 6px;
    font-size: 10px;
  }
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  .writing-mode {
    background: #0a0a0a;
    color: #f5f5f5;
  }
  
  .writing-mode .ProseMirror {
    background: #0a0a0a;
    color: #f5f5f5;
  }
  
  .enhanced-floating-menu {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  }
  
  .mobile-toolbar {
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
  }
}

/* Animation keyframes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.enhanced-floating-menu {
  animation: fadeInUp 0.2s ease-out;
}

.mobile-toolbar {
  animation: fadeInUp 0.3s ease-out;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .focus-transitions *,
  .enhanced-floating-menu,
  .mobile-toolbar,
  .toolbar-item,
  .menu-item {
    transition: none !important;
    animation: none !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .has-focus {
    outline: 2px solid currentColor;
  }
  
  .focus-ring {
    border-width: 3px;
  }
  
  .enhanced-floating-menu,
  .mobile-toolbar {
    border-width: 2px;
  }
}

/* Suppress placeholder rendering within table cells */
.ProseMirror td .is-empty::before,
.ProseMirror th .is-empty::before,
.ProseMirror td.is-empty::before,
.ProseMirror th.is-empty::before {
  content: none;
  display: none;
}

.ProseMirror table .is-empty::before {
  content: none !important;
  display: none !important;
  float: none !important;
  height: auto !important;
}


.ProseMirror table .is-empty {
  position: static !important;
}