/* 全体リセットとベーススタイル */
body {
  font-family: "Segoe UI", sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f6f8fa;
  color: #333;
  line-height: 1.6;
}

header {
  text-align: center;
  padding: 1.5rem 1rem 0.5rem;
  background-color: #24292e;
  color: #fff;
}

header h1 {
  margin: 0;
  font-size: 1.8rem;
}

header .subtitle {
  font-size: 0.95rem;
  color: #ddd;
}

.tabs {
  display: flex;
  justify-content: center;
  background-color: #f0f0f0;
  flex-wrap: wrap;
}

.tab-button {
  border: none;
  background: none;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.tab-button:hover,
.tab-button.active {
  background-color: #ddd;
  font-weight: bold;
}

main {
  padding: 2rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.tab-content {
  display: none;
  max-width: 900px;
  margin: 0 auto;
}

.tab-content.active {
  display: block;
}

.tab-content h2 {
  text-align: center;
  margin-bottom: 1.5rem;
}

.input-area {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  justify-content: center;
}

.input-area input,
.input-area select {
  padding: 0.6rem 1rem;
  font-size: 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.input-area input:focus,
.input-area select:focus {
  outline: none;
  border-color: #0366d6;
  box-shadow: 0 0 0 2px rgba(3, 102, 214, 0.1);
}

.input-area button {
  padding: 0.6rem 1.5rem;
  font-size: 1rem;
  background-color: #0366d6;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.input-area button:hover {
  background-color: #0256c7;
}

.actions {
  margin-bottom: 2rem;
  text-align: center;
}

/* Preset selector styles */
.preset-container {
  margin: 2rem auto;
  max-width: 900px;
}

.preset-container h3 {
  text-align: center;
  margin-bottom: 1rem;
  color: #333;
}

.preset-categories {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.preset-category-btn {
  padding: 0.5rem 1rem;
  border: 2px solid #e9ecef;
  background: #f8f9fa;
  color: #666;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.preset-category-btn:hover {
  border-color: #0366d6;
  background: #f0f8ff;
}

.preset-category-btn.active {
  border-color: #0366d6;
  background: #0366d6;
  color: white;
}

.preset-category-description {
  text-align: center;
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.preset-cards-container {
  position: relative;
  min-height: 200px;
}

.preset-category-content {
  display: none;
}

.preset-category-content.active {
  display: block;
}

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

.preset-card {
  background: #f8f9fa;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  padding: 1rem;
  transition: all 0.2s;
}

.preset-card:hover {
  border-color: #0366d6;
  box-shadow: 0 4px 8px rgba(3, 102, 214, 0.1);
}

.preset-warning {
  border-color: #ffc107;
  background: #fff8e1;
}

.preset-warning:hover {
  border-color: #ff9800;
}

.preset-header {
  margin-bottom: 1rem;
}

.preset-name {
  font-weight: bold;
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.preset-description {
  color: #666;
  font-size: 0.9rem;
}

.preset-actions {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.preset-btn {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}

.preset-btn-local {
  background: #28a745;
  color: white;
}

.preset-btn-local:hover {
  background: #218838;
}

.preset-btn-session {
  background: #17a2b8;
  color: white;
}

.preset-btn-session:hover {
  background: #138496;
}

.preset-preview {
  border-top: 1px solid #e9ecef;
  padding-top: 0.5rem;
}

.preset-preview small {
  color: #666;
  font-size: 0.8rem;
  word-break: break-word;
}

/* Collapsible section styles */
.collapsible-section {
  margin: 1rem auto 2rem;
  max-width: 900px;
  border: 1px solid #e9ecef;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.collapsible-header {
  background: #f8f9fa;
  padding: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s;
  user-select: none;
}

.collapsible-header:hover {
  background: #e9ecef;
}

.collapsible-title {
  font-weight: bold;
  font-size: 1.1rem;
  color: #333;
}

.collapsible-toggle {
  font-size: 1rem;
  color: #666;
  transition: transform 0.2s;
}

.collapsible-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-in-out;
}

.collapsible-section.expanded .collapsible-content {
  border-top: 1px solid #e9ecef;
}

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

.collapsible-content .input-area,
.collapsible-content .actions,
.collapsible-content .search-container {
  margin: 1rem;
}

.interactive-examples-content {
  padding: 1rem;
}

.interactive-examples-content .example-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

/* Search functionality styles */
.search-container {
  margin: 1rem auto;
  max-width: 900px;
  background: #f8f9fa;
  border-radius: 8px;
  padding: 1rem;
  border: 1px solid #e9ecef;
}

.search-box {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.search-box input {
  flex: 1;
  padding: 0.6rem 1rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

.search-box input:focus {
  outline: none;
  border-color: #0366d6;
  box-shadow: 0 0 0 2px rgba(3, 102, 214, 0.1);
}

.search-box button {
  padding: 0.6rem 0.8rem;
  background: #6c757d;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}

.search-box button:hover {
  background: #5a6268;
}

.search-filters {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-filters label {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.search-filters input[type="checkbox"] {
  margin: 0;
}

.search-filters select {
  padding: 0.4rem 0.6rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 0.9rem;
}

.search-stats {
  text-align: center;
  margin: 0.5rem auto;
  color: #666;
  font-size: 0.9rem;
  font-style: italic;
}

/* Enhanced storage item styles */
.storage-item {
  margin: 0.5rem 0;
  background: #fff;
  border: 1px solid #e9ecef;
  border-radius: 6px;
  overflow: hidden;
  transition: all 0.2s;
}

.storage-item:hover {
  border-color: #0366d6;
  box-shadow: 0 2px 4px rgba(3, 102, 214, 0.1);
}

.storage-item-content {
  padding: 0.75rem;
}

.storage-item-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.storage-type-badge {
  min-width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: bold;
}

.storage-type-badge.string {
  background: #e3f2fd;
  color: #1976d2;
}

.storage-type-badge.json {
  background: #f3e5f5;
  color: #7b1fa2;
}

.storage-type-badge.number {
  background: #e8f5e8;
  color: #388e3c;
}

.storage-type-badge.boolean {
  background: #fff3e0;
  color: #f57c00;
}

.storage-type-badge.url {
  background: #e1f5fe;
  color: #0277bd;
}

.storage-type-badge.email {
  background: #fce4ec;
  color: #c2185b;
}

/* Simplified storage item styles */
.storage-item-simple {
  margin: 0.25rem 0;
  padding: 0.5rem 0.75rem;
  background: #fff;
  border: 1px solid #e9ecef;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
  word-break: break-word;
  position: relative;
  cursor: pointer;
}

.storage-item-simple:hover {
  border-color: #0366d6;
  box-shadow: 0 2px 4px rgba(3, 102, 214, 0.1);
  background: #f8f9fa;
}

.storage-item-simple .storage-key {
  font-weight: bold;
  color: #0366d6;
  min-width: fit-content;
  font-size: 0.9rem;
}

.storage-item-simple .storage-separator {
  color: #666;
  font-weight: bold;
  min-width: fit-content;
  font-size: 0.9rem;
  margin: 0 0.25rem;
}

.storage-item-simple .storage-value {
  flex: 1;
  color: #333;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.4;
  word-break: break-all;
  padding-right: 4rem;
}

/* Double-click editing visual feedback */
.storage-item-simple::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background-color 0.2s;
}

.storage-item-simple:hover::after {
  background: #0366d6;
}

/* Storage action buttons - mouse-following compact hover */
.storage-actions {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 0.2rem;
  opacity: 0;
  transition: opacity 0.15s ease, left 0.1s ease, top 0.1s ease;
  background: rgba(248, 249, 250, 0.95);
  border-radius: 6px;
  padding: 0.15rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(0, 0, 0, 0.1);
  z-index: 10;
  pointer-events: none;
}

/* マウス追跡モード時のスタイル */
.storage-actions.mouse-tracking {
  opacity: 1;
  pointer-events: auto;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  border-color: rgba(3, 102, 214, 0.3);
  animation: compactHoverPulse 0.3s ease-out;
}

@keyframes compactHoverPulse {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* フォールバック: エントリーの右端でのみ表示 */
.storage-item-simple:hover .storage-actions:not(.mouse-tracking) {
  opacity: 0.7;
}

.storage-edit-btn,
.storage-delete-btn {
  border: none;
  border-radius: 3px;
  padding: 0.2rem;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.15s ease;
  min-width: auto;
  width: 1.8rem;
  height: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.storage-edit-btn::before,
.storage-delete-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.3s ease;
}

.storage-edit-btn:hover::before,
.storage-delete-btn:hover::before {
  left: 100%;
}

.storage-edit-btn {
  background: #28a745;
  color: white;
}

.storage-edit-btn:hover {
  background: #218838;
  transform: scale(1.1);
}

.storage-delete-btn {
  background: #dc3545;
  color: white;
}

.storage-delete-btn:hover {
  background: #c82333;
  transform: scale(1.1);
}

.storage-value-container {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.storage-separator {
  color: #666;
  font-weight: bold;
  margin-top: 0.1rem;
}

.storage-value {
  flex: 1;
  word-break: break-word;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.4;
  white-space: pre-wrap;
}

.actions button {
  margin-right: 0.8rem;
  padding: 0.4rem 1rem;
  background-color: #e55353;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.actions button:hover {
  background-color: #cc4444;
}

.storage-display {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.storage-display div {
  flex: 1;
  min-width: 350px;
  max-width: 420px;
  background-color: #fff;
  border: 1px solid #ddd;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.storage-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.storage-header h3 {
  margin: 0;
}

.clear-storage-btn {
  background: #dc3545;
  color: white;
  border: none;
  border-radius: 4px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}

.clear-storage-btn:hover {
  background: #c82333;
}

.storage-display ul {
  list-style: none;
  padding-left: 0;
  min-height: 50px;
}

.storage-display li:not(.storage-item):not(.storage-item-simple) {
  margin: 0.5rem 0;
  padding: 0.5rem;
  background: #f8f9fa;
  border-radius: 4px;
  word-break: break-all;
  animation: fadeIn 0.3s ease-out;
  transition: background-color 0.2s;
}

.storage-display li:not(.storage-item):not(.storage-item-simple):hover {
  background: #e9ecef;
}

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

/* XSS入力セクション */
.xss-input-section {
  margin: 1.5rem auto;
  max-width: 800px;
  background-color: #ffffff;
  border: 1px solid #e1e4e8;
  border-radius: 0.5rem;
  padding: 1.5rem;
}

#xssInput {
  width: 100%;
  min-height: 120px;
  font-family: 'Courier New', monospace;
  padding: 1rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  display: block;
  border: 1px solid #ddd;
  border-radius: 0.375rem;
  background-color: #f8f9fa;
  line-height: 1.4;
  resize: vertical;
}

#xssInput:focus {
  outline: none;
  border-color: #0366d6;
  box-shadow: 0 0 0 3px rgba(3, 102, 214, 0.1);
}

.xss-execute-btn {
  background-color: #0366d6;
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.xss-execute-btn:hover {
  background-color: #0256c7;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(3, 102, 214, 0.2);
}

.xss-execute-btn:active {
  transform: translateY(0);
}

.xss-output {
  margin: 1rem auto;
  max-width: 800px;
  background: #ffecec;
  border: 1px solid #ff9b9b;
  padding: 1rem;
  border-radius: 0.375rem;
  color: #b20000;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-wrap: break-word;
  max-height: 400px;
  overflow-y: auto;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  background-color: #f0f0f0;
  margin-top: 2rem;
}

.footer a {
  color: #0366d6;
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Storage notification */
.storage-notification {
  background: #28a745;
  color: white;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin: 1rem auto;
  max-width: 600px;
  text-align: center;
  animation: slideDown 0.3s ease-out;
  transition: opacity 0.3s ease-out;
}

.storage-notification.fade-out {
  opacity: 0;
}

@keyframes slideDown {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Storage list enhancements */
.storage-key {
  font-weight: bold;
  color: #0366d6;
}

.storage-separator {
  margin: 0 0.5rem;
  color: #666;
}

.storage-value {
  color: #28a745;
  word-break: break-all;
}

/* XSS Demo enhancements */
.xss-warning {
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: 4px;
  padding: 1rem;
  margin: 1rem auto;
  max-width: 600px;
  color: #856404;
}

/* 攻撃シナリオ選択UI */
.xss-examples {
  margin: 1.5rem auto;
  max-width: 800px;
  background-color: #ffffff;
  border: 1px solid #e1e4e8;
  border-radius: 0.5rem;
  padding: 1.5rem;
}

.xss-examples h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  color: #24292f;
  border-bottom: 2px solid #fd7e14;
  padding-bottom: 0.5rem;
}

.attack-category {
  margin-bottom: 2rem;
  background-color: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 0.5rem;
  padding: 1rem;
}

.category-header h4 {
  margin: 0 0 0.5rem 0;
  color: #495057;
  font-size: 1.1rem;
}

.category-description {
  margin: 0 0 1rem 0;
  color: #6c757d;
  font-size: 0.9rem;
  font-style: italic;
}

.attack-scripts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
}

.attack-script-card {
  background-color: #ffffff;
  border: 1px solid #dee2e6;
  border-radius: 0.375rem;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.attack-script-card:hover {
  border-color: #fd7e14;
  box-shadow: 0 2px 4px rgba(253, 126, 20, 0.1);
}

.script-info {
  flex: 1;
  margin-right: 1rem;
}

.script-info strong {
  display: block;
  color: #495057;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.script-explanation {
  display: block;
  color: #6c757d;
  font-size: 0.85rem;
  line-height: 1.4;
}

.select-script-btn {
  background-color: #fd7e14;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 0.25rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: background-color 0.2s;
  white-space: nowrap;
}

.select-script-btn:hover {
  background-color: #e8681a;
}

/* スクリプト説明表示 */
.script-explanation-active {
  background-color: #fff8dc;
  border: 2px solid #fd7e14;
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 1rem auto;
  max-width: 800px;
}

.explanation-content h4 {
  margin: 0 0 1rem 0;
  color: #d63384;
}

.explanation-content p {
  margin: 0.5rem 0;
}

.explanation-content code {
  display: block;
  background-color: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 0.25rem;
  padding: 0.75rem;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  margin: 0.5rem 0 1rem 0;
  word-break: break-all;
}

.risk-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #ffebee;
  border: 1px solid #f8d7da;
  border-radius: 0.25rem;
  padding: 0.5rem;
  margin-top: 1rem;
}

.risk-level {
  background-color: #dc3545;
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: bold;
}

.risk-indicator span:last-child {
  font-size: 0.85rem;
  color: #721c24;
}

/* 実行ステップ表示 */
.execution-steps {
  background-color: #e3f2fd;
  border: 1px solid #2196f3;
  border-radius: 0.375rem;
  padding: 1rem;
  margin: 1rem auto;
  max-width: 800px;
}

.execution-steps h4 {
  margin: 0 0 0.5rem 0;
  color: #1976d2;
}

.steps-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-item {
  padding: 0.25rem 0;
  color: #666;
  font-size: 0.9rem;
}

.step-item.active {
  color: #1976d2;
  font-weight: bold;
  animation: pulse 1s infinite;
}

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

/* セキュリティ分析結果 */
.security-analysis {
  background-color: #fff3e0;
  border: 2px solid #ff9800;
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 1rem auto;
  max-width: 800px;
}

.security-analysis h4 {
  margin: 0 0 1rem 0;
  color: #e65100;
}

.analysis-report {
  margin-top: 0.5rem;
}

.storage-changes {
  background-color: #fff;
  border: 1px solid #ddd;
  border-radius: 0.25rem;
  padding: 0.75rem;
  margin: 0.5rem 0;
}

.storage-changes h5 {
  margin: 0 0 0.5rem 0;
  color: #333;
  font-size: 0.95rem;
}

.storage-changes ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.storage-changes li {
  padding: 0.25rem 0;
  font-size: 0.85rem;
}

.change-added {
  color: #28a745;
  font-weight: 500;
}

.change-modified {
  color: #ffc107;
  font-weight: 500;
}

.change-removed {
  color: #dc3545;
  font-weight: 500;
}

.security-threat {
  background-color: #ffebee;
  border: 1px solid #f8d7da;
  border-radius: 0.25rem;
  padding: 0.75rem;
  margin: 0.5rem 0;
}

.security-threat h5 {
  margin: 0 0 0.5rem 0;
  color: #721c24;
  font-size: 0.95rem;
}

.threat-blocked {
  color: #155724;
  font-weight: bold;
  margin: 0.25rem 0;
  font-size: 0.9rem;
}

.threat-warning {
  color: #721c24;
  font-style: italic;
  margin: 0.25rem 0;
  font-size: 0.85rem;
}

/* 防御デモンストレーション */
.defense-demo {
  background-color: #f8fff9;
  border: 2px solid #28a745;
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin: 2rem auto;
  max-width: 800px;
}

.defense-demo h3 {
  margin: 0 0 1rem 0;
  color: #155724;
  border-bottom: 2px solid #28a745;
  padding-bottom: 0.5rem;
}

.defense-examples {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.defense-card {
  background-color: #ffffff;
  border: 1px solid #c3e6cb;
  border-radius: 0.375rem;
  padding: 1rem;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.defense-card:hover {
  border-color: #28a745;
  box-shadow: 0 2px 4px rgba(40, 167, 69, 0.2);
}

.defense-card h4 {
  margin: 0 0 0.5rem 0;
  color: #155724;
  font-size: 1rem;
}

.defense-card p {
  margin: 0 0 1rem 0;
  color: #6c757d;
  font-size: 0.85rem;
  line-height: 1.4;
}

.defense-btn {
  background-color: #28a745;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 0.25rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: background-color 0.2s;
}

.defense-btn:hover {
  background-color: #218838;
}

/* 防御結果表示 */
.defense-result {
  background-color: #e8f5e8;
  border: 1px solid #28a745;
  border-radius: 0.375rem;
  padding: 1rem;
  margin-top: 1.5rem;
}

.defense-result h4 {
  margin: 0 0 1rem 0;
  color: #155724;
}

.defense-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

.before-defense, .after-defense {
  padding: 1rem;
  border-radius: 0.25rem;
}

.before-defense {
  background-color: #ffebee;
  border: 1px solid #f8d7da;
}

.after-defense {
  background-color: #e8f5e8;
  border: 1px solid #c3e6cb;
}

.before-defense h5, .after-defense h5 {
  margin: 0 0 0.5rem 0;
  font-size: 0.9rem;
}

.before-defense h5 {
  color: #721c24;
}

.after-defense h5 {
  color: #155724;
}

.defense-comparison code {
  display: block;
  background-color: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 0.25rem;
  padding: 0.5rem;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  margin: 0.5rem 0;
  white-space: pre-line;
}

.vulnerability {
  color: #721c24;
  font-weight: bold;
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.protection {
  color: #155724;
  font-weight: bold;
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.implementation-guide {
  background-color: #f0f8ff;
  border: 1px solid #b8daff;
  border-radius: 0.25rem;
  padding: 1rem;
  margin-top: 1rem;
}

.implementation-guide h5 {
  margin: 0 0 0.5rem 0;
  color: #004085;
  font-size: 0.9rem;
}

.implementation-guide code {
  background-color: #ffffff;
  border: 1px solid #b8daff;
}

/* サニタイゼーションデモ出力 */
.demo-output {
  margin: 0.5rem 0;
  padding: 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.85rem;
}

.demo-output.vulnerable {
  background-color: #ffebee;
  border: 1px solid #f8d7da;
}

.demo-output.safe {
  background-color: #e8f5e8;
  border: 1px solid #c3e6cb;
}

.output-sample {
  background-color: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 0.25rem;
  padding: 0.5rem;
  margin-top: 0.25rem;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  word-break: break-all;
}

.xss-output.xss-success {
  background: #d4edda;
  border-color: #c3e6cb;
  color: #155724;
}

.xss-output.xss-info {
  background: #d1ecf1;
  border-color: #bee5eb;
  color: #0c5460;
}

.xss-output.xss-alert {
  background: #fff3cd;
  border-color: #ffeeba;
  color: #856404;
}

.xss-output.xss-error {
  background: #f8d7da;
  border-color: #f5c6cb;
  color: #721c24;
}

/* XSS実行結果の見やすさ改善 */
.xss-output::-webkit-scrollbar {
  width: 8px;
}

.xss-output::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.1);
  border-radius: 4px;
}

.xss-output::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.3);
  border-radius: 4px;
}

.xss-output::-webkit-scrollbar-thumb:hover {
  background: rgba(0,0,0,0.5);
}

/* データ準備通知 */
.data-preparation-notice {
  background-color: #e3f2fd;
  border: 1px solid #2196f3;
  border-radius: 0.375rem;
  padding: 0.75rem;
  margin: 1rem auto;
  max-width: 800px;
  animation: slideInNotice 0.3s ease-out;
}

.notice-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: #1976d2;
}

.notice-icon {
  font-size: 1.1rem;
}

.notice-text {
  font-weight: 500;
}

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

/* Learn section enhancements */
.learn-enhanced {
  margin-top: 2rem;
}

.best-practices li {
  margin: 1rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.best-practices li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: #0366d6;
}

.best-practices span {
  display: block;
  color: #666;
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.storage-comparison {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background: white;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.storage-comparison th,
.storage-comparison td {
  padding: 0.75rem;
  text-align: left;
  border: 1px solid #ddd;
}

.storage-comparison th {
  background: #f6f8fa;
  font-weight: bold;
}

.storage-comparison tbody tr:hover {
  background: #f6f8fa;
}

.interactive-examples {
  margin-top: 2rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.interactive-examples h3 {
  text-align: center;
  margin-bottom: 1.5rem;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.example-item {
  padding: 1rem;
  background: #f6f8fa;
  border-radius: 8px;
  text-align: center;
  transition: transform 0.2s;
}

.example-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.demo-button {
  padding: 0.6rem 1.2rem;
  background: #0366d6;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  width: 100%;
  transition: background-color 0.2s;
}

.demo-button:hover {
  background: #0256c7;
}

.example-description {
  margin: 0.5rem 0 0 0;
  color: #666;
  font-size: 0.9rem;
}

/* Edit Modal Styles */
.edit-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.2s ease-out;
}

.edit-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.edit-modal-content {
  background: white;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  z-index: 1001;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.edit-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #e9ecef;
  background: #f8f9fa;
  border-radius: 8px 8px 0 0;
}

.edit-modal-header h3 {
  margin: 0;
  color: #333;
  font-size: 1.2rem;
}

.edit-modal-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: #666;
  padding: 0.25rem;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.edit-modal-close:hover {
  background: #e9ecef;
  color: #333;
}

.edit-modal-body {
  padding: 1.5rem;
}

.edit-field {
  margin-bottom: 1rem;
}

.edit-field label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
  color: #333;
}

.edit-field input,
.edit-field textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  box-sizing: border-box;
  transition: border-color 0.2s;
}

.edit-field input:focus,
.edit-field textarea:focus {
  outline: none;
  border-color: #0366d6;
  box-shadow: 0 0 0 2px rgba(3, 102, 214, 0.1);
}

.edit-field textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.4;
}

.edit-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: #f8f9fa;
  border-radius: 4px;
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 1rem;
}

.edit-storage-type {
  font-weight: bold;
  color: #0366d6;
}

.edit-data-size {
  font-family: monospace;
}

.edit-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid #e9ecef;
  background: #f8f9fa;
  border-radius: 0 0 8px 8px;
}

.edit-cancel-btn,
.edit-save-btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background-color 0.2s;
}

.edit-cancel-btn {
  background: #6c757d;
  color: white;
}

.edit-cancel-btn:hover {
  background: #5a6268;
}

.edit-save-btn {
  background: #28a745;
  color: white;
}

.edit-save-btn:hover {
  background: #218838;
}

/* Capacity Statistics Styles */
.capacity-stats-container {
  margin: 1rem auto;
  max-width: 900px;
}

.capacity-stats {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 1.5rem;
  border: 1px solid #e9ecef;
}

.capacity-stats h4 {
  margin: 0 0 1.5rem 0;
  color: #333;
  text-align: center;
  font-size: 1.1rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.stat-card {
  background: white;
  border-radius: 6px;
  padding: 1rem;
  border: 1px solid #e9ecef;
  transition: box-shadow 0.2s;
}

.stat-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.stat-title {
  font-weight: bold;
  color: #333;
  font-size: 1rem;
}

.export-btn {
  background: #f8f9fa;
  color: #24292f;
  border: 1px solid #d0d7de;
  border-radius: 0.375rem;
  padding: 0.375rem 0.75rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.export-btn:hover {
  background: #0969da;
  border-color: #0969da;
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(9, 105, 218, 0.2);
}

.capacity-bar {
  position: relative;
  background: #e9ecef;
  border-radius: 10px;
  height: 20px;
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.capacity-fill {
  height: 100%;
  border-radius: 10px;
  transition: width 0.3s ease, background-color 0.3s ease;
  position: relative;
}

.capacity-fill.normal {
  background: linear-gradient(90deg, #28a745, #20c997);
}

.capacity-fill.warning {
  background: linear-gradient(90deg, #ffc107, #fd7e14);
}

.capacity-fill.danger {
  background: linear-gradient(90deg, #dc3545, #e91e63);
}

.capacity-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.8rem;
  font-weight: bold;
  color: #333;
  text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
  z-index: 1;
}

.stat-details {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #666;
}

.item-count {
  font-weight: 500;
}

.data-size {
  font-family: monospace;
  font-weight: bold;
}

/* Export Modal Styles */
.export-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.2s ease-out;
}

.export-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.export-modal-content {
  background: white;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  z-index: 1001;
  animation: slideIn 0.3s ease-out;
}

.export-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #e9ecef;
  background: #f8f9fa;
  border-radius: 8px 8px 0 0;
}

.export-modal-header h3 {
  margin: 0;
  color: #333;
  font-size: 1.2rem;
}

.export-modal-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: #666;
  padding: 0.25rem;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.export-modal-close:hover {
  background: #e9ecef;
  color: #333;
}

.export-modal-body {
  padding: 1.5rem;
}

.export-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: #e3f2fd;
  border-radius: 4px;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid #2196f3;
}

.export-storage-type {
  font-weight: bold;
  color: #1976d2;
}

.export-item-count,
.export-data-size {
  font-family: monospace;
  color: #333;
}

.export-format {
  margin-bottom: 1.5rem;
}

.export-format label {
  display: block;
  margin-bottom: 0.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.export-format label:hover {
  background: #f8f9fa;
}

.export-format input[type="radio"] {
  margin-right: 0.5rem;
}

.export-preview {
  margin-bottom: 1rem;
}

.export-preview label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
  color: #333;
}

.export-preview textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 0.9rem;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  box-sizing: border-box;
  background: #f8f9fa;
  color: #333;
  line-height: 1.4;
  resize: vertical;
}

.export-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid #e9ecef;
  background: #f8f9fa;
  border-radius: 0 0 8px 8px;
}

.export-cancel-btn,
.export-download-btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background-color 0.2s;
}

.export-cancel-btn {
  background: #6c757d;
  color: white;
}

.export-cancel-btn:hover {
  background: #5a6268;
}

.export-download-btn {
  background: #17a2b8;
  color: white;
}

.export-download-btn:hover {
  background: #138496;
}

/* Double-click editing cursor */
/* Removed duplicate styles - now handled above */

/* Delete Confirmation Dialog Styles */
.delete-confirm-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1100;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.2s ease-out;
}

.delete-confirm-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(3px);
}

.delete-confirm-content {
  background: white;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  width: 90%;
  max-width: 450px;
  position: relative;
  z-index: 1101;
  animation: slideIn 0.3s ease-out;
}

.delete-confirm-header {
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid #e9ecef;
  text-align: center;
}

.delete-confirm-header h3 {
  margin: 0;
  color: #dc3545;
  font-size: 1.3rem;
}

.delete-confirm-body {
  padding: 1.5rem;
  text-align: center;
}

.delete-confirm-body p {
  margin: 0 0 1rem 0;
  color: #333;
}

.delete-item-info {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 1rem;
  margin: 1rem 0;
  text-align: left;
}

.delete-key-info,
.delete-storage-info {
  margin: 0.5rem 0;
}

.delete-key-info code {
  background: #e9ecef;
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-family: monospace;
}

.delete-warning {
  color: #dc3545;
  font-weight: bold;
  margin: 1rem 0 0 0;
}

.delete-confirm-footer {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 1rem 1.5rem 1.5rem;
}

.delete-cancel-btn,
.delete-execute-btn {
  padding: 0.7rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: background-color 0.2s;
}

.delete-cancel-btn {
  background: #6c757d;
  color: white;
}

.delete-cancel-btn:hover {
  background: #5a6268;
}

.delete-execute-btn {
  background: #dc3545;
  color: white;
}

.delete-execute-btn:hover {
  background: #c82333;
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #1e1e1e;
    color: #ddd;
  }

  header {
    background-color: #111;
  }

  .tabs {
    background-color: #222;
  }

  .tab-button {
    color: #ddd;
  }

  .tab-button:hover,
  .tab-button.active {
    background-color: #444;
  }

  .storage-display div {
    background-color: #2a2a2a;
    border-color: #555;
  }

  .storage-header h3 {
    color: #ddd;
  }

  .clear-storage-btn {
    background: #dc3545;
  }

  .clear-storage-btn:hover {
    background: #c82333;
  }

  .storage-display li:not(.storage-item):not(.storage-item-simple) {
    background: #333;
  }

  .storage-display li:not(.storage-item):not(.storage-item-simple):hover {
    background: #3a3a3a;
  }

  .storage-item-simple {
    background: #2a2a2a;
    border-color: #555;
    color: #ddd;
  }

  .storage-item-simple:hover {
    border-color: #61dafb;
    box-shadow: 0 2px 4px rgba(97, 218, 251, 0.1);
  }

  .storage-item-simple .storage-key {
    color: #61dafb;
  }

  .storage-item-simple .storage-separator {
    color: #ccc;
  }

  .storage-item-simple .storage-value {
    color: #ddd;
  }

  .storage-edit-btn {
    background: #198754;
  }

  .storage-edit-btn:hover {
    background: #157347;
  }

  .edit-modal-content {
    background: #2a2a2a;
    color: #ddd;
  }

  .edit-modal-header,
  .edit-modal-footer {
    background: #333;
    border-color: #555;
  }

  .edit-modal-header h3 {
    color: #ddd;
  }

  .edit-modal-close {
    color: #ccc;
  }

  .edit-modal-close:hover {
    background: #444;
    color: #fff;
  }

  .edit-field label {
    color: #ddd;
  }

  .edit-field input,
  .edit-field textarea {
    background: #333;
    border-color: #555;
    color: #ddd;
  }

  .edit-field input:focus,
  .edit-field textarea:focus {
    border-color: #61dafb;
    box-shadow: 0 0 0 2px rgba(97, 218, 251, 0.1);
  }

  .edit-info {
    background: #333;
    color: #ccc;
  }

  .edit-storage-type {
    color: #61dafb;
  }

  .edit-cancel-btn {
    background: #495057;
  }

  .edit-cancel-btn:hover {
    background: #343a40;
  }

  .edit-save-btn {
    background: #198754;
  }

  .edit-save-btn:hover {
    background: #157347;
  }

  .capacity-stats {
    background: #333;
    border-color: #555;
  }

  .capacity-stats h4 {
    color: #ddd;
  }

  .stat-card {
    background: #2a2a2a;
    border-color: #555;
  }

  .stat-card:hover {
    box-shadow: 0 2px 8px rgba(97, 218, 251, 0.1);
  }

  .stat-title {
    color: #ddd;
  }

  .export-btn {
    background: #0d7377;
  }

  .export-btn:hover {
    background: #0a5d61;
  }

  .capacity-bar {
    background: #444;
  }

  .capacity-text {
    color: #ddd;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
  }

  .stat-details {
    color: #ccc;
  }

  .storage-item-simple:hover {
    background: #1a4c72;
  }

  .storage-item-simple:hover::after {
    background: #61dafb;
  }

  .storage-actions {
    background: rgba(42, 42, 42, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .storage-actions.mouse-tracking {
    background: rgba(42, 42, 42, 0.98);
    border-color: rgba(97, 218, 251, 0.3);
    box-shadow: 0 4px 12px rgba(97, 218, 251, 0.1);
  }

  .export-modal-content {
    background: #2a2a2a;
    color: #ddd;
  }

  .export-modal-header,
  .export-modal-footer {
    background: #333;
    border-color: #555;
  }

  .export-modal-header h3 {
    color: #ddd;
  }

  .export-modal-close {
    color: #ccc;
  }

  .export-modal-close:hover {
    background: #444;
    color: #fff;
  }

  .export-info {
    background: #1a4c72;
    border-color: #61dafb;
  }

  .export-storage-type {
    color: #61dafb;
  }

  .export-item-count,
  .export-data-size {
    color: #ddd;
  }

  .export-format label:hover {
    background: #333;
  }

  .export-preview label {
    color: #ddd;
  }

  .export-preview textarea {
    background: #333;
    border-color: #555;
    color: #ddd;
  }

  .export-cancel-btn {
    background: #495057;
  }

  .export-cancel-btn:hover {
    background: #343a40;
  }

  .export-download-btn {
    background: #0d7377;
  }

  .export-download-btn:hover {
    background: #0a5d61;
  }

  .edit-delete-btn {
    background: #dc3545;
  }

  .edit-delete-btn:hover {
    background: #c82333;
  }

  .delete-confirm-content {
    background: #2a2a2a;
    color: #ddd;
  }

  .delete-confirm-header {
    border-color: #555;
  }

  .delete-confirm-header h3 {
    color: #ff6b6b;
  }

  .delete-confirm-body p {
    color: #ddd;
  }

  .delete-item-info {
    background: #333;
  }

  .delete-key-info code {
    background: #444;
    color: #ddd;
  }

  .delete-warning {
    color: #ff6b6b;
  }

  .delete-cancel-btn {
    background: #495057;
  }

  .delete-cancel-btn:hover {
    background: #343a40;
  }

  .delete-execute-btn {
    background: #dc3545;
  }

  .delete-execute-btn:hover {
    background: #c82333;
  }

/* Quota Result Dialog Styles */
.quota-result-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1200;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.2s ease-out;
}

.quota-result-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(3px);
}

.quota-result-content {
  background: white;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  z-index: 1201;
  animation: slideIn 0.3s ease-out;
}

.quota-result-content.error {
  max-width: 500px;
}

.quota-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 2rem 1rem;
  border-bottom: 1px solid #e9ecef;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border-radius: 12px 12px 0 0;
}

.quota-result-header h3 {
  margin: 0;
  color: #333;
  font-size: 1.4rem;
  font-weight: 600;
}

.quota-result-close {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: #666;
  padding: 0.25rem;
  border-radius: 4px;
  transition: all 0.2s;
}

.quota-result-close:hover {
  background: #e9ecef;
  color: #333;
  transform: scale(1.1);
}

.quota-result-body {
  padding: 2rem;
}

/* Success View Styles */
.quota-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.quota-stat-item {
  background: linear-gradient(135deg, #f8f9fa, #fff);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  border: 2px solid #e9ecef;
  transition: all 0.2s;
}

.quota-stat-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.quota-stat-item.success {
  border-color: #28a745;
  background: linear-gradient(135deg, #d4edda, #f8f9fa);
}

.quota-stat-item.current {
  border-color: #17a2b8;
  background: linear-gradient(135deg, #d1ecf1, #f8f9fa);
}

.quota-stat-item.available {
  border-color: #ffc107;
  background: linear-gradient(135deg, #fff3cd, #f8f9fa);
}

.quota-stat-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.quota-stat-label {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.quota-stat-value {
  font-size: 1.4rem;
  font-weight: bold;
  color: #333;
  font-family: 'Consolas', 'Monaco', monospace;
}

.quota-result-note {
  background: linear-gradient(135deg, #e3f2fd, #f8f9fa);
  border-left: 4px solid #2196f3;
  border-radius: 0 8px 8px 0;
  padding: 1.5rem;
  margin: 2rem 0;
}

.quota-note-text {
  margin: 0;
  color: #333;
  line-height: 1.6;
}

.quota-progress-container {
  margin: 2rem 0;
  background: #f8f9fa;
  border-radius: 8px;
  padding: 1.5rem;
}

.quota-progress-label {
  font-weight: 500;
  color: #333;
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.quota-progress-bar {
  background: #e9ecef;
  border-radius: 10px;
  height: 12px;
  overflow: hidden;
  position: relative;
  margin-bottom: 0.5rem;
}

.quota-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #28a745, #20c997);
  border-radius: 10px;
  transition: width 0.8s ease;
  position: relative;
}

.quota-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.quota-progress-text {
  text-align: center;
  font-weight: bold;
  color: #333;
  font-family: 'Consolas', 'Monaco', monospace;
}

/* Error View Styles */
.quota-error-message {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.quota-error-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.quota-error-message p {
  margin: 0;
  color: #856404;
  line-height: 1.6;
}

.quota-error-suggestions {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 1.5rem;
}

.quota-error-suggestions h4 {
  margin: 0 0 1rem 0;
  color: #333;
  font-size: 1.1rem;
}

.quota-error-suggestions ul {
  margin: 0;
  padding-left: 1.5rem;
}

.quota-error-suggestions li {
  margin: 0.5rem 0;
  color: #666;
  line-height: 1.5;
}

.quota-result-footer {
  display: flex;
  justify-content: center;
  padding: 1.5rem 2rem 2rem;
  border-top: 1px solid #e9ecef;
  background: #f8f9fa;
  border-radius: 0 0 12px 12px;
}

.quota-ok-btn {
  padding: 0.8rem 2rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.2s;
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  box-shadow: 0 2px 4px rgba(40, 167, 69, 0.2);
}

.quota-ok-btn:hover {
  background: linear-gradient(135deg, #218838, #1e7e34);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(40, 167, 69, 0.3);
}

  .storage-notification {
    background: #1a6b2e;
    border: 1px solid #28a745;
  }

  .preset-container h3 {
    color: #ddd;
  }

  .preset-categories {
    justify-content: center;
  }

  .preset-category-btn {
    background: #333;
    border-color: #555;
    color: #ddd;
  }

  .preset-category-btn:hover {
    border-color: #61dafb;
    background: #2a2a2a;
  }

  .preset-category-btn.active {
    border-color: #61dafb;
    background: #61dafb;
    color: #000;
  }

  .preset-category-description {
    color: #ccc;
  }

  .preset-card {
    background: #333;
    border-color: #555;
  }

  .preset-card:hover {
    border-color: #61dafb;
  }

  .preset-warning {
    background: #3b3000;
    border-color: #ffc107;
  }

  .preset-warning:hover {
    border-color: #ff9800;
  }

  .preset-description {
    color: #ccc;
  }

  .preset-preview {
    border-color: #555;
  }

  .preset-preview small {
    color: #ccc;
  }

  .collapsible-section {
    background: #2a2a2a;
    border-color: #555;
  }

  .collapsible-header {
    background: #333;
    color: #ddd;
  }

  .collapsible-header:hover {
    background: #3a3a3a;
  }

  .collapsible-title {
    color: #ddd;
  }

  .collapsible-toggle {
    color: #ccc;
  }

  .collapsible-section.expanded .collapsible-content {
    border-color: #555;
  }

  .search-container {
    background: #333;
    border-color: #555;
  }

  .search-box input {
    background: #444;
    border-color: #555;
    color: #ddd;
  }

  .search-box input:focus {
    border-color: #61dafb;
  }

  .search-filters {
    color: #ddd;
  }

  .search-filters select {
    background: #444;
    border-color: #555;
    color: #ddd;
  }

  .search-stats {
    color: #ccc;
  }

  .storage-item {
    background: #2a2a2a;
    border-color: #555;
  }

  .storage-item:hover {
    border-color: #61dafb;
  }

  .storage-type-badge.string {
    background: #1a4c72;
    color: #61dafb;
  }

  .storage-type-badge.json {
    background: #4a2a5a;
    color: #c678dd;
  }

  .storage-type-badge.number {
    background: #2d4a2d;
    color: #98c379;
  }

  .storage-type-badge.boolean {
    background: #5a4a2d;
    color: #e5c07b;
  }

  .storage-type-badge.url {
    background: #1a4a5a;
    color: #56b6c2;
  }

  .storage-type-badge.email {
    background: #5a2d3a;
    color: #e06c75;
  }

  .storage-value {
    color: #ddd;
  }

  .storage-separator {
    color: #ccc;
  }

  .xss-output {
    background: #4a1c1c;
    border-color: #ff6565;
    color: #ffbcbc;
  }

  footer {
    background-color: #222;
  }

  .footer a {
    color: #61dafb;
  }

  .storage-key {
    color: #61dafb;
  }

  .storage-value {
    color: #98c379;
  }

  .xss-warning {
    background: #3b3000;
    border-color: #ffc107;
    color: #ffd700;
  }

  .example-btn {
    background: #333;
    border-color: #555;
    color: #ddd;
  }

  .example-btn:hover {
    background: #444;
  }

  .storage-comparison {
    background: #2a2a2a;
  }

  .storage-comparison th {
    background: #333;
  }

  .storage-comparison tbody tr:hover {
    background: #333;
  }

  .example-item {
    background: #333;
  }

  .demo-button {
    background: #0366d6;
  }

  .demo-button:hover {
    background: #0256c7;
  }
}

/* Dark Mode for Quota Dialog */
@media (prefers-color-scheme: dark) {
  .quota-result-content {
    background: #2a2a2a;
    color: #ddd;
  }

  .quota-result-header {
    background: linear-gradient(135deg, #333, #444);
    border-color: #555;
  }

  .quota-result-header h3 {
    color: #ddd;
  }

  .quota-result-close {
    color: #ccc;
  }

  .quota-result-close:hover {
    background: #444;
    color: #fff;
  }

  .quota-stat-item {
    background: linear-gradient(135deg, #333, #2a2a2a);
    border-color: #555;
  }

  .quota-stat-item.success {
    border-color: #28a745;
    background: linear-gradient(135deg, #1e4620, #2a2a2a);
  }

  .quota-stat-item.current {
    border-color: #17a2b8;
    background: linear-gradient(135deg, #0f4c5c, #2a2a2a);
  }

  .quota-stat-item.available {
    border-color: #ffc107;
    background: linear-gradient(135deg, #5c4b08, #2a2a2a);
  }

  .quota-stat-label {
    color: #ccc;
  }

  .quota-stat-value {
    color: #ddd;
  }

  .quota-result-note {
    background: linear-gradient(135deg, #1a4c72, #333);
    border-color: #61dafb;
  }

  .quota-note-text {
    color: #ddd;
  }

  .quota-progress-container {
    background: #333;
  }

  .quota-progress-label {
    color: #ddd;
  }

  .quota-progress-bar {
    background: #444;
  }

  .quota-progress-text {
    color: #ddd;
  }

  .quota-error-message {
    background: #3b3000;
    border-color: #ffc107;
  }

  .quota-error-message p {
    color: #ffd700;
  }

  .quota-error-suggestions {
    background: #333;
  }

  .quota-error-suggestions h4 {
    color: #ddd;
  }

  .quota-error-suggestions li {
    color: #ccc;
  }

  .quota-result-footer {
    background: #333;
    border-color: #555;
  }

  .quota-ok-btn {
    background: linear-gradient(135deg, #198754, #157347);
  }

  .quota-ok-btn:hover {
    background: linear-gradient(135deg, #146c43, #0f5132);
  }
}

/* Responsive design for mobile */
@media (max-width: 768px) {
  main {
    padding: 1rem;
  }
  
  .tab-content {
    max-width: 100%;
  }
  
  .storage-display {
    flex-direction: column;
    align-items: center;
  }
  
  .storage-display div {
    min-width: 100%;
    max-width: 100%;
  }
  
  .input-area {
    flex-direction: column;
  }
  
  .input-area input,
  .input-area select,
  .input-area button {
    width: 100%;
  }
  
  .actions button {
    display: block;
    width: 100%;
    margin: 0.5rem 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .stat-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .export-btn {
    align-self: flex-end;
  }
  
  .export-modal-content {
    width: 95%;
    margin: 1rem;
  }
  
  .export-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .quota-result-content {
    width: 95%;
    margin: 1rem;
  }
  
  .quota-result-header {
    padding: 1.5rem 1rem 0.75rem;
  }
  
  .quota-result-header h3 {
    font-size: 1.2rem;
  }
  
  .quota-result-body {
    padding: 1.5rem 1rem;
  }
  
  .quota-stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .quota-stat-item {
    padding: 1rem;
  }
  
  .quota-result-note {
    padding: 1rem;
    margin: 1.5rem 0;
  }
  
  .quota-progress-container {
    padding: 1rem;
    margin: 1.5rem 0;
  }
  
  .quota-result-footer {
    padding: 1rem;
  }
  
  .quota-ok-btn {
    width: 100%;
    padding: 1rem;
  }
  
  .preset-categories {
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
  }
  
  .preset-category-btn {
    width: 90%;
    text-align: center;
  }
  
  .preset-grid {
    grid-template-columns: 1fr;
  }
  
  .preset-card {
    margin: 0.5rem 0;
  }
  
  .preset-actions {
    flex-direction: column;
  }
  
  .preset-btn {
    margin-bottom: 0.5rem;
  }
  
  .search-filters {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .search-filters label,
  .search-filters select {
    width: 100%;
  }
  
  .storage-item-header {
    flex-wrap: wrap;
  }
  
  .storage-delete-btn {
    margin: 0.25rem 0;
  }
  
  .storage-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .clear-storage-btn {
    align-self: flex-end;
  }
  
  .collapsible-header {
    padding: 0.75rem;
  }
  
  .collapsible-title {
    font-size: 1rem;
  }
  
  .collapsible-content .input-area,
  .collapsible-content .actions,
  .collapsible-content .search-container {
    margin: 0.75rem;
  }
  
  .storage-comparison {
    font-size: 0.9rem;
    overflow-x: auto;
  }
  
  .tab-button {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }
}

/* Quota result modal styles - unified with other modals */
.quota-result-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.2s ease-out;
}

.quota-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

.quota-modal-content {
  position: relative;
  background-color: white;
  border-radius: 0.5rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 1001;
}

.quota-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid #e1e4e8;
  background-color: #f8f9fa;
  border-radius: 0.5rem 0.5rem 0 0;
}

.quota-modal-header h3 {
  margin: 0;
  color: #24292f;
  font-size: 1.25rem;
  font-weight: 600;
}

.quota-modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #656d76;
  padding: 0.25rem;
  border-radius: 0.25rem;
  transition: background-color 0.2s;
}

.quota-modal-close:hover {
  background-color: #f3f4f6;
  color: #24292f;
}

.quota-modal-body {
  padding: 1.5rem;
}

.quota-summary {
  text-align: center;
}

.quota-main-stat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.quota-capacity, .quota-usage {
  text-align: center;
  padding: 1rem;
  border-radius: 0.5rem;
}

.quota-capacity {
  background-color: #f0f9ff;
  border: 1px solid #0969da;
}

.quota-usage {
  background-color: #fff8f0;
  border: 1px solid #fb8500;
}

.capacity-label, .usage-label {
  display: block;
  font-size: 0.85rem;
  color: #656d76;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.capacity-value, .usage-value {
  display: block;
  font-size: 1.25rem;
  font-weight: bold;
  color: #24292f;
}

.quota-progress-bar {
  margin: 2rem 0;
}

.progress-track {
  background-color: #f3f4f6;
  border-radius: 1rem;
  height: 1rem;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #28a745 0%, #40e263 100%);
  border-radius: 1rem;
  transition: width 0.5s ease;
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: #656d76;
}

.quota-info {
  text-align: center;
  margin-top: 1.5rem;
}

.quota-status {
  margin: 0 0 1rem 0;
  padding: 0.75rem;
  background-color: #f6f8fa;
  border-radius: 0.375rem;
  color: #24292f;
  font-size: 0.9rem;
}

.quota-note {
  margin: 0;
  font-size: 1rem;
  color: #0969da;
  font-weight: 500;
}

.quota-modal-footer {
  display: flex;
  justify-content: center;
  padding: 1rem 1.5rem 1.5rem;
  border-top: 1px solid #e1e4e8;
}

.quota-ok-btn {
  background-color: #0969da;
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.2s;
}

.quota-ok-btn:hover {
  background-color: #0860ca;
  transform: translateY(-1px);
}

/* Error styles */
.quota-modal-content.error .quota-modal-header {
  background-color: #fef2f2;
  border-bottom-color: #fca5a5;
}

.error-content {
  text-align: center;
}

.error-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.error-message {
  color: #dc2626;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.error-suggestions {
  background-color: #fef3c7;
  border: 1px solid #f59e0b;
  border-radius: 0.375rem;
  padding: 1rem;
  text-align: left;
}

.error-suggestions p {
  margin: 0 0 0.5rem 0;
  color: #92400e;
  font-weight: 600;
  font-size: 0.9rem;
}

.error-suggestions ul {
  margin: 0;
  padding-left: 1.25rem;
  color: #78350f;
}

.error-suggestions li {
  margin-bottom: 0.25rem;
  font-size: 0.85rem;
}