/* CSS Variable Definitions with Fallbacks */
:root {
  --primary-color: #0f866c;
  --primary-dark: #0a6b56;
  --secondary-color: #2563eb;
  --accent-color: #e74c3c;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --text-primary: #2c3e50;
  --text-secondary: #7f8c8d;
  --text-light: #bdc3c7;
  --background: #ffffff;
  --background-alt: #f8f9fa;
  --background-card: #ffffff;
  --border-color: #e9ecef;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
  --shadow-card: 0 4px 6px rgba(0, 0, 0, 0.05);
  --border-radius: 50px;
  --border-radius-card: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --max-width: 1200px;
  --header-height: 80px;
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-success: linear-gradient(135deg, var(--success-color), var(--primary-color));
}

/* Basic Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ENHANCED: Complete scrollbar removal */
* {
  scrollbar-width: none !important; /* Firefox */
  -ms-overflow-style: none !important; /* Internet Explorer 10+ */
}

*::-webkit-scrollbar {
  display: none !important; /* WebKit - Complete removal */
  width: 0 !important;
  height: 0 !important;
}

*::-webkit-scrollbar-track,
*::-webkit-scrollbar-thumb,
*::-webkit-scrollbar-corner {
  display: none !important;
}

html, body {
  height: 100%;
  height: 100dvh;
  font-family: var(--font-primary, 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif);
  background-color: var(--background-alt, #f4f4f4);
  color: var(--text-primary, #2c3e50);
  overflow: hidden; /* Prevent page scrolling */
  touch-action: manipulation; /* Allow only basic touch actions */
  -webkit-overflow-scrolling: touch;
  /* Prevent iOS bounce/rubber band effect */
  position: fixed;
  width: 100%;
}

#mainContainer {
  display: flex;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  touch-action: none; /* Disable default touch behaviors */
  position: relative;
}

/* Graphic View & Table View */
#graphicView, #tableView {
  flex: 1;
  position: relative;
  height: 100%;
  /* Allow normal touch behavior for table scrolling */
  touch-action: auto;
  overflow-y: auto;
  /* Hide scrollbar but maintain scroll functionality */
  scrollbar-width: none;
  -ms-overflow-style: none;
}

#graphicView::-webkit-scrollbar,
#tableView::-webkit-scrollbar {
  display: none;
}

#svgArea {
  width: 100%;
  height: 100%;
  background-color: #fff;
  cursor: grab;
}

/* Consolidated hidden class for all elements */
.hidden {
  display: none !important;
}

/* Search functionality styles */
.search-container {
  position: fixed;
  left: 52px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-field {
  width: 0;
  height: 40px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 20px;
  padding: 0;
  font-size: 14px;
  outline: none;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  pointer-events: none;
}

.search-field.expanded {
  width: 300px;
  padding: 0 50px 0 20px;
  opacity: 1;
  pointer-events: auto;
}

.search-field:focus {
  border-color: #3498db;
  box-shadow: 0 4px 20px rgba(52, 152, 219, 0.3);
}

.search-suggestions {
  position: absolute;
  top: 45px;
  left: 0;
  right: 0;
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  max-height: 300px;
  overflow-y: auto;
  z-index: 1001;
  display: none;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.search-suggestions::-webkit-scrollbar {
  display: none;
}

.search-suggestions.visible {
  display: block;
}

.search-suggestion {
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid #f0f0f0;
  transition: background-color 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.search-suggestion:last-child {
  border-bottom: none;
}

.search-suggestion:hover {
  background-color: #f8f9fa;
}

.search-suggestion.selected {
  background-color: rgba(52, 152, 219, 0.1);
}

.suggestion-name {
  font-weight: 600;
  color: #2c3e50;
  font-size: 14px;
}

.suggestion-details {
  font-size: 12px;
  color: #7f8c8d;
}

.search-close {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: #666;
  font-size: 18px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.search-field.expanded + .search-close {
  opacity: 1;
}

.search-close:hover {
  color: #e74c3c;
}

/* ENHANCED: Enhanced Cache Indicator with proper hover behavior and no truncation */
.cache-indicator {
  position: fixed;
  bottom: 16px;
  left: 8px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 12px;
  color: #666;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  z-index: 900;
  border: 1px solid rgba(0,0,0,0.1);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  transform-origin: bottom left;
  overflow: visible; /* Changed from hidden to visible */
  
  /* Collapsed state - single line with proper width */
  width: auto;
  min-width: 160px; /* Increased to prevent truncation */
  max-width: 220px; /* Increased max width */
  height: 32px;
  line-height: 16px;
  display: flex;
  align-items: center;
}

.cache-indicator:hover {
  background: rgba(255, 255, 255, 1);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.cache-indicator.saving {
  background: rgba(46, 204, 113, 0.1);
  border-color: rgba(46, 204, 113, 0.3);
  color: #27ae60;
}

.cache-indicator.error {
  background: rgba(231, 76, 60, 0.1);
  border-color: rgba(231, 76, 60, 0.3);
  color: #e74c3c;
}

/* Better expansion behavior - expands from bottom-left without truncation */
.cache-indicator.expanded {
  width: 280px;
  height: auto;
  min-height: 140px; /* Increased min-height */
  padding: 16px;
  line-height: normal;
  display: block;
  overflow: visible; /* Ensure content is always visible */
  /* Bottom-left corner stays in place */
  transform-origin: bottom left;
}

/* Save indicator - always visible in collapsed state with no truncation */
.cache-save-indicator {
  white-space: nowrap;
  overflow: visible; /* Changed from hidden */
  text-overflow: clip; /* Changed from ellipsis */
  flex: 1;
  min-width: 0; /* Allow proper flex sizing */
}

/* Expanded content - hidden by default but visible when expanded */
.cache-expanded-content {
  opacity: 0;
  visibility: hidden;
  max-height: 0;
  overflow: hidden;
  margin-top: 0;
  transition: all 0.3s ease 0.1s; /* Added delay for smoother transition */
  pointer-events: none; /* Prevent interaction when collapsed */
}

.cache-indicator.expanded .cache-expanded-content {
  opacity: 1;
  visibility: visible;
  max-height: 200px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,0.1);
  pointer-events: auto; /* Allow interaction when expanded */
}

/* Ensure all interactive elements prevent collapse */
.cache-expanded-content,
.cache-expanded-content *,
.tree-name-input,
.tree-stats,
.tree-stats * {
  pointer-events: auto;
}

.tree-name-input {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 12px;
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.9);
  transition: border-color 0.2s ease;
  box-sizing: border-box;
  pointer-events: auto; /* Explicitly allow interaction */
}

.tree-name-input:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.tree-stats {
  font-size: 11px;
  color: #666;
  line-height: 1.4;
  display: flex;
  flex-direction: column;
  gap: 4px;
  pointer-events: auto; /* Explicitly allow interaction */
}

.tree-stats > div {
  display: flex;
  align-items: center;
  gap: 4px;
  pointer-events: auto; /* Explicitly allow interaction */
}


/* Notifications System Updates */
.notifications-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.notification {
  background: white;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  border-left: 4px solid #3498db;
  min-width: 300px;
  max-width: 400px;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  pointer-events: auto;
}

.notification.show {
  opacity: 1;
  transform: translateX(0);
}

.notification.success {
  border-left-color: #27ae60;
}

.notification.error {
  border-left-color: #e74c3c;
}

.notification.info {
  border-left-color: #3498db;
}

.notification.warning {
  border-left-color: #f39c12;
}

.notification.cache {
  border-left-color: #9b59b6;
}

.notification-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.notification-content {
  flex: 1;
}

.notification-title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 4px;
  color: #2c3e50;
}

.notification-message {
  font-size: 13px;
  color: #7f8c8d;
  line-height: 1.4;
}

.notification-close {
  width: 20px;
  height: 20px;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s ease;
  background: none;
  border: none;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.notification-close:hover {
  opacity: 1;
}

/* Loading spinner for notifications */
.notification-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid #e9ecef;
  border-left: 2px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ENHANCED: Vertical Sidebar - Narrower with Better Design */
.sidebar {
  position: fixed;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1001;
  background: rgba(255, 255, 255, 0.98);
  border-radius: 12px;
  padding: 4px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 40px;
}

.sidebar-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  color: #6b7280;
  position: relative;
}

.sidebar-btn:hover {
  background: rgba(52, 152, 219, 0.12);
  color: #3498db;
  transform: scale(1.1);
  box-shadow: 0 2px 8px rgba(52, 152, 219, 0.2);
}

.sidebar-btn.active {
  background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
  color: white;
  box-shadow: 0 2px 12px rgba(52, 152, 219, 0.3);
}

.sidebar-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

.sidebar-divider {
  height: 1px;
  background: rgba(0, 0, 0, 0.1);
  margin: 4px 0;
}

/* Undo/Redo buttons styling */
#undoSidebarBtn, #redoSidebarBtn {
  opacity: 0.7;
  transition: all 0.2s ease;
}

#undoSidebarBtn:hover, #redoSidebarBtn:hover {
  opacity: 1;
  background: rgba(52, 152, 219, 0.1);
  color: #3498db;
  transform: scale(1.05);
}

#undoSidebarBtn:disabled, #redoSidebarBtn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

#undoSidebarBtn.available, #redoSidebarBtn.available {
  opacity: 1;
  color: #3498db;
}

/* ENHANCED: Settings Icon Improvements */
.settings-icon {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.98);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(12px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  color: #6b7280;
  z-index: 997;
}

.settings-icon:hover {
  background: rgba(243, 156, 18, 0.12);
  color: #f39c12;
  transform: scale(1.1) rotate(45deg);
  box-shadow: 0 4px 16px rgba(243, 156, 18, 0.25);
}

.settings-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
  transition: transform 0.2s ease;
}

/* Remove old positioned elements that are no longer needed */
.view-toggle-icon,
.back-to-home {
  display: none !important;
}

/* ENHANCED: Compact Gender Radio Buttons - Single Line Layout */
.gender-radio-group {
  display: flex; /* Changed from grid to flex for single line */
  flex-direction: row;
  gap: 8px; /* Reduced gap */
  padding: 0;
  flex-wrap: wrap; /* Allow wrap on very small screens */
}

.gender-radio-option {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  padding: 12px 16px;
  border-radius: 10px;
  border: 2px solid #e2e8f0;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  background: #ffffff;
  flex: 1;
  min-width: 0;
  font-size: 15px;
  height: 50px;
  box-sizing: border-box;
  font-weight: 500;
}

.gender-radio-option:hover {
  border-color: #cbd5e0;
  background: #f7fafc;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.gender-radio-option input[type="radio"]:checked + .gender-radio-option,
.gender-radio-option:has(input[type="radio"]:checked) {
  border-color: #3498db;
  background: rgba(52, 152, 219, 0.08);
  color: #3498db;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(52, 152, 219, 0.15);
}

.gender-radio-option input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #3498db;
  margin: 0;
}

.gender-radio-option label {
  cursor: pointer;
  font-weight: 500;
  margin: 0;
  font-size: 14px;
  white-space: nowrap;
  user-select: none;
}





/* ENHANCED: Modern Form Groups */
.form-group { 
  margin-bottom: 24px;
  position: relative;
}

.form-group:last-of-type {
  margin-bottom: 32px;
}

.form-group label { 
  display: block; 
  margin-bottom: 8px; 
  font-weight: 600;
  color: #2d3748;
  font-size: 14px;
  line-height: 1.4;
  letter-spacing: 0.025em;
}

.form-group label .required {
  color: #e53e3e;
  margin-left: 2px;
}

.form-group input, 
.form-group select { 
  width: 100%; 
  padding: 14px 16px; 
  font-size: 15px;
  border: 2px solid #e2e8f0; 
  border-radius: 10px; 
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-sizing: border-box;
  background: #ffffff;
  font-family: inherit;
  line-height: 1.5;
  color: #2d3748;
  font-weight: 400;
}

.form-group input:hover,
.form-group select:hover {
  border-color: #cbd5e0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.form-group input:focus, 
.form-group select:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 
    0 0 0 3px rgba(52, 152, 219, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.1);
  background: #ffffff;
  transform: translateY(-1px);
}

.form-group input::placeholder {
  color: #a0aec0;
  font-weight: 400;
}

.form-group input:invalid {
  border-color: #e53e3e;
}

.form-group input:invalid:focus {
  border-color: #e53e3e;
  box-shadow: 
    0 0 0 3px rgba(229, 62, 62, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.1);
}

.help-text { 
  font-size: 12px; 
  color: #718096; 
  margin-top: 6px;
  line-height: 1.5;
  font-style: italic;
  display: flex;
  align-items: center;
  gap: 4px;
}

.help-text::before {
  content: "ℹ";
  color: #a0aec0;
  font-style: normal;
  font-size: 11px;
}

.required { 
  color: #e53e3e; 
}

/* ENHANCED: Optimized Searchable Select */
.searchable-select { 
  position: relative; 
}

.searchable-select .select-input { 
  width: 100%; 
  padding: 14px 16px; 
  font-size: 15px; 
  border: 2px solid #e2e8f0; 
  border-radius: 10px; 
  cursor: pointer; 
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 50px;
  box-sizing: border-box;
  font-family: inherit;
  color: #2d3748;
  font-weight: 400;
  position: relative;
}

.searchable-select .select-input:hover {
  border-color: #cbd5e0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  transform: translateY(-1px);
}

.searchable-select .select-input.open { 
  border-color: #3498db; 
  box-shadow: 
    0 0 0 3px rgba(52, 152, 219, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

.searchable-select .select-input::after {
  content: '▼';
  font-size: 12px;
  color: #718096;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  margin-left: 8px;
}

.searchable-select .select-input.open::after {
  transform: rotate(180deg);
  color: #3498db;
}

.searchable-select .options { 
  position: absolute; 
  top: calc(100% + 6px); 
  left: 0; 
  right: 0; 
  max-height: 240px; 
  overflow-y: auto; 
  background: #ffffff; 
  border: 2px solid #e2e8f0; 
  border-radius: 10px; 
  z-index: 1002; 
  box-shadow: 
    0 10px 25px rgba(0, 0, 0, 0.1),
    0 4px 10px rgba(0, 0, 0, 0.05);
  scrollbar-width: thin;
  backdrop-filter: blur(8px);
}

.searchable-select .options.hidden { 
  display: none; 
}

.searchable-select .select-option { 
  padding: 14px 16px; 
  cursor: pointer; 
  border-bottom: 1px solid #f7fafc;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 15px;
  color: #2d3748;
  font-weight: 400;
}

.searchable-select .select-option:last-child { 
  border-bottom: none; 
}

.searchable-select .select-option:hover { 
  background-color: #f7fafc; 
  color: #2d3748;
  transform: translateX(2px);
}

.searchable-select .select-option.selected { 
  background-color: rgba(52, 152, 219, 0.08);
  color: #3498db;
  font-weight: 500;
  border-left: 3px solid #3498db;
  padding-left: 13px;
}




/* Button helpers */
.btn-danger {
  background-color: #e74c3c;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-danger:hover {
  background-color: #c0392b;
}

.btn-danger-outline {
  background-color: transparent;
  color: #e74c3c;
  border: 2px solid #e74c3c;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
}

.btn-danger-outline:hover {
  background-color: #e74c3c;
  color: white;
}

.btn-success {
  background: #27ae60; 
  color: white; 
  border: none; 
  padding: 10px 20px; 
  border-radius: 6px; 
  cursor: pointer;
}

.btn-success:hover {
  background-color: #229954;
}

.btn-success-outline {
  background-color: transparent;
  color: #27ae60;
  border: 2px solid #27ae60;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
}

.btn-success-outline:hover {
  background-color: #27ae60;
  color: white;
}


/* ENHANCED: Validation Error Styles - Optimized */
.form-group.error input,
.form-group.error select,
.form-group.error .select-input {
  border-color: #dc3545 !important;
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1) !important;
  background: rgba(220, 53, 69, 0.02) !important;
}

.form-group.error .gender-radio-option {
  border-color: #dc3545 !important;
  background: rgba(220, 53, 69, 0.02) !important;
}

.error-message {
  color: #dc3545;
  font-size: 12px;
  margin-top: 6px;
  animation: slideDown 0.2s ease-out;
  font-weight: 500;
  line-height: 1.3;
}


/* Icon Buttons */
.icon-button {
  position: fixed;
  width: 40px;
  height: 40px;
  cursor: pointer;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: all 0.2s ease;
  /* Allow normal touch behavior for buttons */
  touch-action: auto;
}

.icon-button:hover {
  background-color: rgba(255, 255, 255, 1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* View Toggle Icon (upper left) */
.view-toggle-icon {
  top: 16px;
  left: 16px;
}

/* Settings Icon (upper right) */
.settings-icon {
  top: 16px;
  right: 16px;
}

.icon {
  width: 24px;
  height: 24px;
  stroke: #333;
  transition: stroke 0.2s ease;
}

.icon-button:hover .icon {
  stroke: #000;
}

/* ENHANCED: YouTube-Style Settings Panel */
#settingsPanel {
  position: fixed;
  top: 70px;
  right: 16px;
  width: 340px;
  max-height: calc(100vh - 100px);
  max-height: calc(100dvh - 100px);
  overflow-y: auto;
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.28);
  padding: 0;
  z-index: 999;
  /* Allow normal touch behavior in settings */
  touch-action: auto;
  /* Hide scrollbar */
  scrollbar-width: none;
  -ms-overflow-style: none;
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
}

#settingsPanel::-webkit-scrollbar {
  display: none;
}

#settingsPanel h3 { 
  margin: 0;
  padding: 20px 24px 16px;
  font-size: 18px; 
  font-weight: 500;
  color: #0f0f0f;
  border-bottom: 1px solid #e0e0e0;
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 1;
}

/* Legacy setting-section styles removed - now using collapsible sections */

.setting-group { 
  margin-bottom: 16px; 
  display: flex; 
  align-items: center; 
  gap: 12px;
}

.setting-group label { 
  flex: 1; 
  font-size: 13px; 
  font-weight: 400;
  color: #606060;
  line-height: 18px;
}

.setting-group input,
.setting-group select,
.setting-group button { 
  flex: 1.2; 
  font-size: 13px; 
  padding: 8px 12px; 
  border: 1px solid #d0d7de;
  border-radius: 8px;
  background: #ffffff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
}

.setting-group input:focus,
.setting-group select:focus {
  outline: none;
  border-color: #1976d2;
  box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.2);
}

.setting-group input:hover,
.setting-group select:hover {
  border-color: #a8a8a8;
}

.export-group { 
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.export-group button {
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 500;
}

#settingsPanel button { 
  background-color: #1976d2; 
  color: #ffffff; 
  border: none; 
  border-radius: 18px; 
  cursor: pointer; 
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
  font-weight: 500;
  font-size: 13px;
  min-height: 36px;
  padding: 8px 16px;
}

#settingsPanel button:hover { 
  background-color: #1565c0; 
  box-shadow: 0 2px 8px rgba(25, 118, 210, 0.3);
}

#settingsPanel button:active {
  background-color: #0d47a1;
  transform: translateY(1px);
}

.file-label {
  display: inline-block;
  flex: 1.5;
  padding: 6px 12px;
  background-color: #6c757d;
  color: white;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  font-size: 14px;
  transition: background-color 0.2s ease;
}

.file-label:hover {
  background-color: #5a6268;
}

.file-label span {
  pointer-events: none;
}

.file-label input[type="file"] {
  display: none;
}

/* YouTube-Style Collapsible Sections */
.collapsible-section {
  border-bottom: 1px solid #e0e0e0;
  margin: 0;
}

.collapsible-section:last-child {
  border-bottom: none;
}

.collapsible-header {
  padding: 16px 24px;
  background: #ffffff;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.15s ease;
  user-select: none;
}

.collapsible-header:hover {
  background: #f9f9f9;
}

.collapsible-header h4 {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  color: #0f0f0f;
  line-height: 20px;
}

.collapsible-toggle {
  font-size: 16px;
  color: #606060;
  transition: transform 0.2s ease;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.collapsible-content {
  padding: 0 24px 16px;
  display: none;
  background: #ffffff;
}

.collapsible-content.expanded {
  display: block;
  animation: slideDown 0.2s ease-out;
}

.collapsible-header.expanded .collapsible-toggle {
  transform: rotate(180deg);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
}

.checkbox-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: #1976d2;
  border-radius: 4px;
}

.checkbox-item label {
  cursor: pointer;
  font-size: 13px;
  font-weight: 400;
  color: #0f0f0f;
  margin: 0;
  line-height: 18px;
  user-select: none;
}

/* Node Style Selection */
.node-style-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.node-style-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.node-style-option:hover {
  border-color: #3498db;
  background-color: #f8f9fa;
}

.node-style-option.selected {
  border-color: #3498db;
  background-color: #e3f2fd;
}

.node-style-preview {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #3498db;
  color: white;
  font-weight: 600;
  font-size: 12px;
  margin-bottom: 8px;
  border-radius: 50%;
}

.node-style-preview.circle {
  border-radius: 50%;
}

.node-style-preview.rectangle {
  border-radius: 8px;
  width: 80px;
}

.node-style-label {
  font-size: 12px;
  font-weight: 500;
  text-align: center;
}

/* Setting Subsections for Connector Lines */
.setting-subsection {
  margin-bottom: 16px;
  padding: 12px;
  background-color: #ffffff;
  border: 1px solid #e9ecef;
  border-radius: 6px;
}

.setting-subsection h5 {
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #495057;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* Enhanced checkbox styling for outline toggle */
.checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #3498db;
}

.checkbox-item label {
  cursor: pointer;
  font-size: 14px;
  margin: 0;
  user-select: none;
}

/* Color picker styling */
.setting-group input[type="color"] {
  width: 40px;
  height: 32px;
  padding: 2px;
  border: 1px solid #ddd;
  border-radius: 4px;
  cursor: pointer;
}

/* Number input styling */
.setting-group input[type="number"] {
  min-width: 60px;
  text-align: center;
}

/* Select styling */
.setting-group select {
  min-width: 100px;
}

/* Apply button styling for new sections */
#applyOutlineStyle,
#applyLineStyles {
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.2s ease;
  margin-top: 8px;
}

#applyOutlineStyle:hover,
#applyLineStyles:hover {
  background-color: #218838;
}

/* Panel helper class */
.panel {
  position: fixed;
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  z-index: 999;
}

/* ENHANCED: Zoom Controls - Narrower with Better Design */
.zoom-controls {
  position: fixed;
  bottom: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 2px;
  z-index: 997;
  background: rgba(255, 255, 255, 0.98);
  border-radius: 12px;
  padding: 4px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.zoom-display {
  font-size: 11px;
  font-weight: 700;
  color: #6b7280;
  min-width: 35px;
  text-align: center;
  padding: 0 6px;
  letter-spacing: 0.025em;
}

.zoom-btn {
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  color: #6b7280;
  position: relative;
}

.zoom-btn:hover {
  background: rgba(52, 152, 219, 0.12);
  color: #3498db;
  transform: scale(1.1);
  box-shadow: 0 2px 8px rgba(52, 152, 219, 0.2);
}

.zoom-btn:active {
  transform: scale(0.95);
}

.zoom-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

.zoom-btn.zoom-reset {
  margin: 0 2px;
}

/* ENHANCED: Top Left Toolbar - Narrower with Better Design */
.top-toolbar {
  position: fixed;
  top: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  gap: 2px;
  z-index: 997;
  background: rgba(255, 255, 255, 0.98);
  border-radius: 12px;
  padding: 4px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.toolbar-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  color: #6b7280;
  position: relative;
}

.toolbar-btn:hover {
  background: rgba(15, 134, 108, 0.12);
  color: #0f866c;
  transform: scale(1.1);
  box-shadow: 0 2px 8px rgba(15, 134, 108, 0.2);
}

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

.toolbar-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Export Menu */
.export-menu {
  position: fixed;
  top: 70px;
  left: 70px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  z-index: 999;
  min-width: 220px;
  opacity: 1;
  transform: translateY(0);
  transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.export-menu.hidden {
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
}

.export-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #333;
  font-size: 14px;
  font-weight: 500;
}

.export-option:hover {
  background: rgba(15, 134, 108, 0.1);
  color: #0f866c;
}

.export-option svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.export-option span {
  flex: 1;
}

/* Floating Action Buttons - UPDATED FOR BRING TO FRONT BUTTON */
.floating-buttons {
  position: fixed;
  bottom: 80px;
  right: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  z-index: 998;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  /* Allow normal touch behavior for buttons */
  touch-action: auto;
}

/* Main button row (undo and add buttons) */
.floating-buttons .main-buttons {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
}

/* Removed the blur effect completely */
.floating-buttons::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: rgba(0, 0, 0, 0);
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 997;
}

.floating-buttons.expanded::before {
  background: rgba(0, 0, 0, 0.1);
  opacity: 1;
}

.floating-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  position: relative;
  margin-bottom: 0;
  outline: none;
  user-select: none;
  /* Allow normal touch behavior for buttons */
  touch-action: auto;
}

.floating-btn:active {
  transform: scale(0.95);
}

/* Undo Button Styles */
.floating-btn.undo {
  background-color: #95a5a6;
  color: #fff;
  z-index: 1003;
  box-shadow: 0 4px 12px rgba(149, 165, 166, 0.3);
}

.floating-btn.undo:hover {
  background-color: #7f8c8d;
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(149, 165, 166, 0.4);
}

.floating-btn.undo svg {
  width: 24px;
  height: 24px;
}

/* Primary Button (Add) Styles */
.floating-btn.primary {
  background-color: #2ecc71;
  color: #fff;
  font-size: 28px;
  z-index: 1003;
  transform: rotate(0deg);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 6px 16px rgba(46, 204, 113, 0.3);
}

.floating-buttons.expanded .floating-btn.primary {
  transform: rotate(45deg);
  background-color: #e74c3c;
  box-shadow: 0 6px 16px rgba(231, 76, 60, 0.3);
}

.floating-btn.primary:hover { 
  background-color: #27ae60;
  transform: scale(1.1) rotate(0deg);
  box-shadow: 0 8px 20px rgba(46, 204, 113, 0.4);
}

.floating-buttons.expanded .floating-btn.primary:hover {
  background-color: #c0392b;
  transform: scale(1.1) rotate(45deg);
  box-shadow: 0 8px 20px rgba(231, 76, 60, 0.4);
}

/* Secondary Buttons */
.floating-btn.secondary {
  background-color: #3498db;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  z-index: 1002;
  opacity: 0;
  transform: translateY(0px) scale(0);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: absolute;
  right: 0;
  box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.floating-buttons.expanded .floating-btn.secondary {
  opacity: 1;
  transform: scale(1);
}

/* Bring to Front Button */
.floating-btn.bring-front {
  background-color: #f39c12;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  z-index: 1002;
  opacity: 0;
  transform: translateY(0px) scale(0);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: absolute;
  right: 0;
  box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.floating-buttons.expanded .floating-btn.bring-front {
  opacity: 1;
  transform: scale(1);
}

/* UPDATED: Bring to Front Button Positioning (topmost) */
.floating-buttons.expanded #bringFrontBtn {
  transform: translateY(-280px) scale(1);
  transition-delay: 0.05s;
}

/* UPDATED: Edit Button Positioning (second) */
.floating-buttons.expanded #editBtn {
  transform: translateY(-210px) scale(1);
  transition-delay: 0.1s;
}

/* UPDATED: Style Button Positioning (third) */
.floating-buttons.expanded #styleBtn {
  transform: translateY(-140px) scale(1);
  transition-delay: 0.15s;
}

/* UPDATED: Connect Button Positioning (fourth) */
.floating-buttons.expanded #connectBtn {
  transform: translateY(-70px) scale(1);
  transition-delay: 0.2s;
}

.floating-btn.secondary:hover {
  background-color: #2980b9;
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(52, 152, 219, 0.4);
}

.floating-btn.bring-front:hover {
  background-color: #e67e22;
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(243, 156, 18, 0.4);
}

/* UPDATED: Bring to Front Button Hover State */
.floating-buttons.expanded #bringFrontBtn:hover {
  transform: translateY(-280px) scale(1.1);
  box-shadow: 0 6px 16px rgba(243, 156, 18, 0.4);
}

/* UPDATED: Edit Button Hover State */
.floating-buttons.expanded #editBtn:hover {
  transform: translateY(-210px) scale(1.1);
  box-shadow: 0 6px 16px rgba(52, 152, 219, 0.4);
}

/* UPDATED: Style Button Hover State */
.floating-buttons.expanded #styleBtn:hover {
  transform: translateY(-140px) scale(1.1);
  box-shadow: 0 6px 16px rgba(52, 152, 219, 0.4);
}

/* UPDATED: Connect Button Hover State */
.floating-buttons.expanded #connectBtn:hover {
  transform: translateY(-70px) scale(1.1);
  box-shadow: 0 6px 16px rgba(52, 152, 219, 0.4);
}

/* UPDATED: Active States */
.floating-buttons.expanded #bringFrontBtn:active {
  transform: translateY(-280px) scale(0.95);
}

.floating-buttons.expanded #editBtn:active {
  transform: translateY(-210px) scale(0.95);
}

.floating-buttons.expanded #styleBtn:active {
  transform: translateY(-140px) scale(0.95);
}

.floating-buttons.expanded #connectBtn:active {
  transform: translateY(-70px) scale(0.95);
}

/* Hide secondary buttons by default */
.floating-btn.secondary.hidden,
.floating-btn.bring-front.hidden {
  display: none !important;
}

/* Improved button labels for better UX */
.floating-btn.secondary,
.floating-btn.bring-front {
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Table View Styles */
#tableControls { 
  padding: 12px; 
  background-color: #fff; 
  display: flex; 
  gap: 12px; 
  border-bottom: 1px solid #ddd; 
}

#tableControls input, #tableControls select { 
  padding: 8px 12px; 
  font-size: 14px; 
  border: 1px solid #ddd;
  border-radius: 6px;
}

#familyTable { 
  width: 100%; 
  border-collapse: collapse; 
  background-color: #fff;
}

#familyTable th, #familyTable td { 
  padding: 12px 8px; 
  text-align: left; 
  border-bottom: 1px solid #eee; 
}

#familyTable th { 
  background-color: #f8f9fa; 
  font-weight: 600; 
  position: sticky;
  top: 0;
}

#familyTable tbody tr:hover { 
  background-color: #f8f9fa; 
}

.table-btn { 
  padding: 4px 8px; 
  margin: 2px; 
  border: none; 
  border-radius: 4px; 
  cursor: pointer; 
  font-size: 12px;
  font-weight: 500;
  transition: opacity 0.2s ease;
}

.table-btn:first-child { 
  background-color: #3498db; 
  color: white; 
}

.table-btn:last-child { 
  background-color: #e74c3c; 
  color: white; 
}

.table-btn:hover { 
  opacity: 0.8; 
}

/* ENHANCED: Enhanced Animations */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/* ENHANCED: Form validation animation */
.form-group.error {
  animation: shake 0.5s ease-in-out;
}

/* SVG Styles - Updated for text inside circles */
.person-group circle { 
  stroke: #2c3e50; 
  stroke-width: 2px; 
  cursor: grab;
  transition: all 0.2s ease;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.person-group circle:hover {
  stroke-width: 3px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.15));
}

.person-group.selected circle {
  stroke: #e74c3c;
  stroke-width: 4px;
  filter: drop-shadow(0 0 12px rgba(231, 76, 60, 0.6));
}

/* Text inside circles */
.person-group text.name { 
  font-weight: 600; 
  font-family: 'Inter', sans-serif;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  dominant-baseline: middle;
}

.person-group text.birth-name { 
  font-family: 'Inter', sans-serif;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
  font-style: italic;
  opacity: 0.9;
  dominant-baseline: middle;
}

.person-group text.dob { 
  font-family: 'Inter', sans-serif;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  dominant-baseline: middle;
}

/* Ensure text is readable on colored backgrounds */
.person-group text {
  text-rendering: optimizeLegibility;
  shape-rendering: geometricPrecision;
}

/* Ensure circles are large enough for text content */
.person-group circle {
  min-width: 100px;
  min-height: 100px;
}

/* Additional visual improvements */
.person-group {
  will-change: transform;
  /* Allow all touch actions on circles */
  touch-action: auto;
}

.person-group circle {
  will-change: transform;
  /* Ensure circles can receive all touch events */
  touch-action: auto;
  pointer-events: all;
  /* Improved gradient for depth */
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.person-group circle:active {
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
  transform: scale(0.98);
}

/* Improved selection state */
.person-group.selected {
  transform: scale(1.05);
  transition: transform 0.2s ease;
}

.person-group.selected circle {
  stroke: #e74c3c;
  stroke-width: 4px;
  filter: drop-shadow(0 0 12px rgba(231, 76, 60, 0.6));
}

/* Relation lines updated for new circle sizes */
.relation { 
  stroke: #7f8c8d; 
  stroke-width: 2px; 
  pointer-events: none;
  opacity: 0.8;
}

.relation.spouse { 
  stroke-dasharray: 4 2; 
  stroke: #e74c3c;
  opacity: 0.9;
}

/* Grid lines remain the same */
.grid-line {
  stroke: #f0f0f0;
  stroke-width: 1px;
  pointer-events: none;
}

.grid-line.major {
  stroke: #e0e0e0;
  stroke-width: 1px;
}

/* SVG Container */
#svgArea {
  width: 100%;
  height: 100%;
  background-color: #fff;
  cursor: grab;
  user-select: none;
  /* Allow touch on circles, prevent on background */
  touch-action: pan-x pan-y;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  /* Improve rendering performance on mobile */
  will-change: transform;
  transform-origin: 0 0;
}

#svgArea.panning {
  cursor: grabbing;
  touch-action: none;
}

/* Performance optimizations for mobile */
.person-group {
  will-change: transform;
  /* Allow all touch actions on circles */
  touch-action: auto;
}

.person-group circle {
  will-change: transform;
  /* Ensure circles can receive all touch events */
  touch-action: auto;
  pointer-events: all;
}


/* Responsive Design - Mobile First Approach */
/* Note: Base styles defined above are used for sidebar, zoom controls, and floating buttons */
/* Only essential mobile-specific overrides are included here to prevent style conflicts */
@media (max-width: 768px) {
  /* Mobile cache indicator with better width handling */
  .cache-indicator {
    bottom: 8px;
    left: 8px;
    font-size: 11px;
    min-width: 140px; /* Increased for mobile */
    max-width: 200px; /* Increased max width */
  }
  
  .cache-indicator.expanded {
    width: 260px; /* Adjusted for mobile */
    min-height: 120px;
    max-width: calc(100vw - 32px);
  }

  #settingsPanel {
    width: calc(100vw - 32px);
    right: 16px;
    left: 16px;
    max-height: calc(100vh - 80px);
    max-height: calc(100dvh - 80px);
  }
  
  .collapsible-header {
    padding: 14px 20px;
  }
  
  .collapsible-content {
    padding: 0 20px 14px;
  }
  
  .setting-group {
    gap: 10px;
    margin-bottom: 14px;
    flex-direction: column;
    align-items: stretch;
  }
  
  .setting-group label {
    margin-bottom: 6px;
    font-size: 14px;
  }
  
  
  /* ENHANCED: Gender buttons stack on very small screens */
  .gender-radio-group {
    flex-direction: column;
    gap: 8px;
  }
  
  .gender-radio-option {
    height: 44px; /* Larger touch targets */
    justify-content: flex-start;
    padding: 12px 16px;
  }
  
  .floating-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .floating-buttons .main-buttons {
    flex-direction: column;
    gap: 16px;
  }

  /* Floating buttons - use base styles for consistency */


  /* Adjust form elements for touch */
  .form-group input, 
  .form-group select,
  .searchable-select .select-input {
    padding: 14px 16px;
    font-size: 16px; /* Prevents zoom on iOS */
    min-height: 48px;
    box-sizing: border-box;
  }

  /* Icon buttons - use base styles for consistency */

  /* Improve table for mobile */
  #familyTable {
    font-size: 14px;
  }

  #familyTable th, 
  #familyTable td {
    padding: 8px 4px;
  }

  .table-btn {
    padding: 8px 12px;
    min-height: 40px;
  }

  /* Settings panel improvements */
  .setting-group input,
  .setting-group select,
  .setting-group button {
    padding: 12px 16px;
    font-size: 16px;
    min-height: 48px;
  }

  /* Sidebar styles removed - using base styles for consistency */

  .search-container {
    left: 48px;
  }

  .search-field.expanded {
    width: 250px;
  }
  
  .node-style-grid {
    grid-template-columns: 1fr;
  }

  .notifications-container {
    top: 10px;
    right: 10px;
    left: 10px;
  }

  .notification {
    min-width: unset;
    max-width: unset;
  }
  
  /* UPDATED: Mobile positioning for buttons */
  .floating-buttons.expanded #bringFrontBtn {
    transform: translateY(-350px) scale(1);
    transition-delay: 0.05s;
  }

  .floating-buttons.expanded #editBtn {
    transform: translateY(-280px) scale(1);
    transition-delay: 0.1s;
  }

  .floating-buttons.expanded #styleBtn {
    transform: translateY(-210px) scale(1);
    transition-delay: 0.15s;
  }

  .floating-buttons.expanded #connectBtn {
    transform: translateY(-140px) scale(1);
    transition-delay: 0.2s;
  }

  /* UPDATED: Mobile hover states */
  .floating-buttons.expanded #bringFrontBtn:hover {
    transform: translateY(-350px) scale(1.1);
  }

  .floating-buttons.expanded #editBtn:hover {
    transform: translateY(-280px) scale(1.1);
  }

  .floating-buttons.expanded #styleBtn:hover {
    transform: translateY(-210px) scale(1.1);
  }

  .floating-buttons.expanded #connectBtn:hover {
    transform: translateY(-140px) scale(1.1);
  }

  /* UPDATED: Mobile active states */
  .floating-buttons.expanded #bringFrontBtn:active {
    transform: translateY(-350px) scale(0.95);
  }

  .floating-buttons.expanded #editBtn:active {
    transform: translateY(-280px) scale(0.95);
  }

  .floating-buttons.expanded #styleBtn:active {
    transform: translateY(-210px) scale(0.95);
  }

  .floating-buttons.expanded #connectBtn:active {
    transform: translateY(-140px) scale(0.95);
  }

  /* Mobile optimizations for text inside circles */
  .person-group text.name {
    font-size: 10px !important;
  }
  
  .person-group text.birth-name {
    font-size: 9px !important;
  }
  
  .person-group text.dob {
    font-size: 9px !important;
  }
  
  .person-group circle {
    /* Slightly larger circles on mobile for better touch targets */
    r: 55;
  }
}

/* Additional mobile optimizations - Very Small Screens */
/* Note: Further reduced sizes only for very small screens (480px and below) */
@media (max-width: 480px) {
  /* Zoom controls - minimal positioning adjustments only */
  .zoom-controls {
    bottom: 12px;
    right: 12px;
  }

  /* All other UI elements use base styles to prevent conflicts */

  
  .gender-radio-option {
    padding: 10px 14px;
    font-size: 13px;
  }
  
}


/* Enhanced Export Buttons */
.export-group-enhanced {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.export-btn {
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 500;
  background-color: #3498db;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.export-btn:hover {
  background-color: #2980b9;
}

.export-btn.advanced {
  background-color: #9b59b6;
}

.export-btn.advanced:hover {
  background-color: #8e44ad;
}

/* Clear All Section */
.clear-all-section {
  border-top: 2px solid #e9ecef;
  margin-top: 16px;
  padding-top: 16px;
}

.clear-all-section h4 {
  color: #e74c3c;
  margin-bottom: 12px;
}

/* Import/Export Enhancement */
.import-export-enhanced {
  border: 2px dashed #e9ecef;
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  margin-bottom: 16px;
  transition: border-color 0.2s ease;
}

.import-export-enhanced:hover {
  border-color: #3498db;
}

.import-export-enhanced.dragover {
  border-color: #3498db;
  background: rgba(52, 152, 219, 0.05);
}

.format-support {
  font-size: 12px;
  color: #666;
  margin-top: 8px;
}

/* Settings improvements */
.setting-group-enhanced {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.setting-group-enhanced label {
  font-weight: 500;
  color: #495057;
  font-size: 14px;
}

.setting-group-enhanced .help-text {
  font-size: 12px;
  color: #6c757d;
  margin-top: 4px;
}

/* ========================================
   MOBILE VIEWPORT HEIGHT FIXES - TARGETED APPROACH
   Only fix the modal height issue without breaking layout
======================================== */
@media screen and (max-width: 768px) {
  /* Only adjust modal-related elements to respect mobile URL bar */
  .modal {
    height: 100dvh !important;
    height: 100vh !important;
  }
  
  .modal-content {
    max-height: calc(100dvh - 96px) !important;
    max-height: calc(100vh - 96px) !important;
  }
}

@media screen and (max-width: 480px) {
  .modal {
    height: 100dvh !important;
    height: 100vh !important;
    height: 100svh !important;
  }
  
  .modal-content {
    max-height: calc(100dvh - 120px) !important;
    max-height: calc(100vh - 120px) !important;
    max-height: calc(100svh - 120px) !important;
  }
}