/* Tool Page Common Styles */
.tool-header {
  display: flex;
  align-items: center;
  gap: 20px;
  background-color: #fff;
  border-radius: 12px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.tool-icon-large {
  font-size: 60px;
  color: #6c63ff;
  background-color: #f5f5f5;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-info h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: #333;
}

.tool-info p {
  font-size: 1.1rem;
  color: #666;
  margin: 0;
}

.tool-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 30px;
}

.tool-options {
  background-color: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.option-group {
  margin-bottom: 20px;
}

.option-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #333;
}

.option-group input,
.option-group select,
.option-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 16px;
  transition: border-color 0.3s;
}

.option-group input:focus,
.option-group select:focus,
.option-group textarea:focus {
  outline: none;
  border-color: #6c63ff;
}

.primary-btn {
  width: 100%;
  padding: 12px;
  background-color: #6c63ff;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s;
}

.primary-btn:hover {
  background-color: #5a52d1;
}

.tool-output {
  flex: 1;
  background-color: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  height: fit-content;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid #eee;
}

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

.secondary-btn {
  padding: 8px 16px;
  background-color: #f5f5f5;
  color: #333;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 5px;
}

.secondary-btn:hover {
  background-color: #e5e5e5;
  border-color: #ccc;
}

.output-content {
  min-height: 300px;
  padding: 20px;
  background-color: #f9f9f9;
  border-radius: 6px;
  border: 1px solid #eee;
  line-height: 1.6;
  color: #333;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.hidden {
  display: none;
}

/* Responsive Styles for Tool Pages */
@media (max-width: 1024px) {
  .tool-content {
    grid-template-columns: 1fr;
  }

  .tool-icon-large {
    font-size: 50px;
    width: 80px;
    height: 80px;
  }

  .tool-info h1 {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .tool-header {
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }

  .tool-icon-large {
    font-size: 40px;
    width: 70px;
    height: 70px;
  }

  .tool-info h1 {
    font-size: 1.8rem;
  }

  .output-header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .tool-header,
  .tool-options,
  .tool-output {
    padding: 15px;
  }

  .tool-info h1 {
    font-size: 1.5rem;
  }

  .output-content {
    min-height: 200px;
    padding: 15px;
  }
}

/* QR Code Generator Specific Styles */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: normal;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  margin: 0;
}

#qr-code-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

#qr-code-image {
  max-width: 100%;
  height: auto;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  background-color: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.qr-code-tips {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.qr-code-tips h4 {
  margin-top: 0;
  margin-bottom: 10px;
  color: #333;
}

.qr-code-tips ul {
  margin: 0;
  padding-left: 20px;
}

.qr-code-tips li {
  margin-bottom: 5px;
  color: #666;
  font-size: 14px;
}

.output-actions {
  display: flex;
  gap: 10px;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: #6c63ff;
  font-size: 18px;
}

.error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: #e74c3c;
  font-size: 18px;
  text-align: center;
  padding: 20px;
}

.secondary-btn.success {
  background-color: #2ecc71;
  color: white;
}
.password-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  background-color: #f8f9fa;
  border: 1px solid #ddd;
  border-radius: 6px;
  margin-bottom: 10px;
  word-break: break-all;
  font-family: 'Courier New', monospace;
}

.password-item .copy-btn {
  background: none;
  border: none;
  color: #6c63ff;
  cursor: pointer;
  font-size: 16px;
  padding: 5px;
  transition: color 0.3s;
}

.password-item .copy-btn:hover {
  color: #5a52d1;
}

.password-strength-section {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.password-strength-section h4 {
  margin-top: 0;
  margin-bottom: 10px;
  color: #333;
}

.password-strength-section ul {
  margin: 0;
  padding-left: 20px;
}

.password-strength-section li {
  margin-bottom: 5px;
  color: #666;
  font-size: 14px;
}

.output-actions {
  display: flex;
  gap: 10px;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #6c63ff;
  color: white;
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background-color 0.3s, transform 0.3s;
  z-index: 1000;
}

.back-to-top.visible {
  display: flex;
}

.back-to-top:hover {
  background-color: #5a52d1;
  transform: translateY(-3px);
}

/* JSON Formatter Specific Styles */
.validation-result {
  padding: 12px 16px;
  margin-bottom: 15px;
  border-radius: 6px;
  font-weight: 500;
}

#json-input {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
}

.validation-result.success {
  background-color: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #c8e6c9;
}

.validation-result.error {
  background-color: #ffebee;
  color: #c62828;
  border: 1px solid #ffcdd2;
}

/* JSON Syntax Highlighting */
.json-string {
  color: #d63384;
}

.json-boolean {
  color: #0d6efd;
}

.json-number {
  color: #d97706;
}

/* Responsive adjustments for JSON Formatter */
@media (max-width: 768px) {
  .tool-options {
    order: 1;
  }

  .tool-output {
    order: 2;
  }

  .option-group {
    margin-bottom: 15px;
  }
}

@media (max-width: 480px) {
  .tool-header,
  .tool-options,
  .tool-output {
    padding: 15px;
  }

  .tool-icon-large {
    font-size: 40px;
    width: 70px;
    height: 70px;
  }

  .tool-info h1 {
    font-size: 1.6rem;
  }
}

/* Color Picker Specific Styles */
.color-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 30px;
}

#preview-color {
  width: 100%;
  height: 100%;
  position: relative;
  transition: background-color 0.3s ease;
}

#preview-text {
  font-size: 1.5rem;
  font-weight: bold;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.color-scheme {
  border-top: 1px solid #eee;
  padding-top: 20px;
}

.color-scheme h4 {
  margin-bottom: 15px;
  color: #333;
}

.scheme-options {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.scheme-btn {
  padding: 8px 16px;
  background-color: #f5f5f5;
  color: #333;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
}

.scheme-btn:hover {
  background-color: #e5e5e5;
  border-color: #ccc;
}

.scheme-btn.active {
  background-color: #6c63ff;
  color: white;
  border-color: #6c63ff;
}

.colors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 10px;
}

.color-block {
  height: 80px;
  border-radius: 6px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 8px;
  cursor: pointer;
  transition: transform 0.2s;
  position: relative;
}

.color-block:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.color-value {
  font-size: 12px;
  font-weight: 500;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.quality-value,
.opacity-value {
  margin-top: 5px;
  font-size: 14px;
  color: #666;
}

/* Responsive adjustments for Color Picker */
@media (max-width: 768px) {
  .scheme-options {
    justify-content: center;
  }

  .colors-grid {
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: 8px;
  }

  .color-block {
    height: 60px;
  }

  .color-value {
    font-size: 10px;
  }
}

/* Date Calculator Specific Styles */
.result-container {
  line-height: 1.3; /* 保持紧凑行高 */
  margin: 0; /* 确保没有额外外边距 */
  padding: 0; /* 确保没有额外内边距 */
}

.date-result {
  background-color: #f9f9f9;
  padding: 15px; /* 减小内边距 */
  border-radius: 8px;
  border: 1px solid #eee;
  margin: 0;
}

.date-result h4 {
  margin-top: 0;
  margin-bottom: 8px; /* 减小标题下方间距 */
  color: #333;
  font-size: 1.1rem;
  padding: 0;
}

.result-item {
  margin-bottom: 3px; /* 减小底部外边距 */
  padding-bottom: 3px; /* 减小底部内边距 */
  border-bottom: 1px solid #eee;
  line-height: normal; /* 使用默认行高 */
}

.result-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.result-item.highlight {
  font-weight: bold;
  color: #6c63ff;
  background-color: rgba(108, 99, 255, 0.05);
  padding: 5px; /* 减小高亮项的内边距 */
  border-radius: 6px;
  margin: 5px 0;
  border-bottom: none;
}

.result-summary {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid #eee;
  font-style: italic;
  color: #666;
  line-height: 1.3;
}

/* 调整output-content和相关容器的样式，去除上方空白区域 */
.output-content {
  padding: 0; /* 移除output-content的内边距 */
  min-height: 300px;
  background-color: transparent; /* 移除背景色，使用date-result的背景色 */
  border-radius: 6px;
  border: none; /* 移除边框，使用date-result的边框 */
}

/* 确保工具输出区域整体样式保持一致 */
.tool-output {
  background-color: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  height: fit-content;
}

/* 调整输出头部和内容之间的间距 */
.output-header {
  margin-bottom: 10px; /* 减小输出头部和内容之间的间距 */
  padding-bottom: 10px; /* 减小底部内边距 */
  border-bottom: 1px solid #eee;
}

/* Base64 Encoder/Decoder Specific Styles */
.error-message {
  background-color: #fff0f0;
  border: 1px solid #ffcccc;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  color: #cc0000;
}

#input-text {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
}

.error-message i {
  font-size: 36px;
  margin-bottom: 10px;
  display: block;
}

#url-placeholder.hidden {
  display: none;
}

.base64-tips {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.base64-tips h4 {
  margin-bottom: 10px;
  color: #333;
}

.base64-tips ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #666;
}

.base64-tips li {
  margin-bottom: 5px;
}

.base64-tips li:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .base64-tips ul {
    padding-left: 15px;
  }

  .base64-tips li {
    font-size: 0.95rem;
  }
}

.date-tips {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.date-tips h4 {
  margin-bottom: 10px;
  color: #333;
}

.date-tips ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #666;
}

.date-tips li {
  margin-bottom: 5px;
}

.date-tips li:last-child {
  margin-bottom: 0;
}

/* Responsive adjustments for Date Calculator */
@media (max-width: 768px) {
  .date-tips ul {
    padding-left: 15px;
  }

  .date-tips li {
    font-size: 0.95rem;
  }
}

/* URL Shortener Specific Styles */
.short-url {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 15px;
  word-break: break-all;
}

.short-url a {
  color: #6c63ff;
  text-decoration: none;
  transition: color 0.3s;
}

.short-url a:hover {
  color: #5a52d1;
  text-decoration: underline;
}

.url-actions {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.output-placeholder {
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 1.1rem;
  text-align: center;
  background-color: #f9f9f9;
  border-radius: 6px;
  border: 1px solid #eee;
  padding: 20px;
}

.url-tips {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.url-tips h4 {
  margin-bottom: 10px;
  color: #333;
}

.url-tips ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #666;
}

.url-tips li {
  margin-bottom: 5px;
}

.url-tips li:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .url-tips ul {
    padding-left: 15px;
  }

  .url-tips li {
    font-size: 0.95rem;
  }

  .url-actions {
    flex-direction: column;
  }

  .url-actions button {
    width: 100%;
  }
}

/* Scientific Calculator Styles */
.calculator-container {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  padding: 20px;
  margin-bottom: 20px;
}

.calculator-display {
  background-color: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-bottom: 20px;
  padding: 10px;
  text-align: right;
  min-height: 80px;
  position: relative;
}

.calculator-history {
  font-size: 12px;
  color: #666;
  min-height: 20px;
  max-height: 40px;
  overflow-y: auto;
  margin-bottom: 5px;
}

.history-item {
  margin-bottom: 2px;
}

.calculator-result {
  font-size: 28px;
  font-weight: bold;
  color: #333;
  word-break: break-all;
}

.calculator-buttons {
  display: grid;
  gap: 5px;
}

.button-row {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 5px;
  margin-bottom: 5px;
}

.btn {
  padding: 12px 8px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-number {
  background-color: #f0f0f0;
  color: #333;
}

.btn-number:hover {
  background-color: #e0e0e0;
}

.btn-primary {
  background-color: #007bff;
  color: white;
}

.btn-primary:hover {
  background-color: #0056b3;
}

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

.btn-secondary:hover {
  background-color: #545b62;
}

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

.btn-danger:hover {
  background-color: #c82333;
}

.btn-wide {
  grid-column: span 2;
}

.btn-tall {
  grid-row: span 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Calculator Tips Section */
.calculator-tips {
  background-color: #fff;
  border-radius: 8px;
  padding: 15px;
}

.calculator-tips h4 {
  margin-top: 0;
  color: #333;
  font-size: 18px;
}

.calculator-tips ul {
  margin-bottom: 0;
  padding-left: 20px;
}

.calculator-tips li {
  margin-bottom: 8px;
  color: #666;
}

/* Responsive adjustments for calculator */
@media (max-width: 768px) {
  .calculator-container {
    padding: 15px;
  }

  .btn {
    padding: 10px 5px;
    font-size: 14px;
  }

  .calculator-result {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .button-row {
    grid-template-columns: repeat(4, 1fr);
  }

  .btn-wide {
    grid-column: span 2;
  }

  .calculator-result {
    font-size: 20px;
  }
}

/* Markdown Editor Specific Styles */
.editor-preview-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  width: 100%;
}

.btn-warp {
  display: flex;
  align-items: center;
  gap: 10px;
}

.editor-section,
.preview-section,
.input-section {
  background-color: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.section-header {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid #eee;
}

.section-header h3 {
  margin: 0;
  color: #333;
  display: flex;
  align-items: center;
  gap: 10px;
}

.editor-toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.toolbar-btn {
  background-color: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 14px;
}

.toolbar-btn:hover {
  background-color: #e5e5e5;
  border-color: #ccc;
}

.editor-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

#markdown-input {
  width: 100%;
  height: 100%;
  min-height: 400px;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 16px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  resize: none;
  line-height: 1.6;
}

#markdown-input:focus {
  outline: none;
  border-color: #6c63ff;
}

.preview-content {
  flex: 1;
  min-height: 400px;
  padding: 20px;
  background-color: #f9f9f9;
  border-radius: 6px;
  border: 1px solid #eee;
  overflow-y: auto;
  font-size: 16px;
  line-height: 1.6;
}

.preview-content.dark-theme {
  background-color: #333;
  color: #fff;
}

.preview-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: #999;
  font-style: italic;
  text-align: center;
}

/* Markdown preview styles */
.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4,
.preview-content h5,
.preview-content h6 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: #333;
}

.preview-content.dark-theme h1,
.preview-content.dark-theme h2,
.preview-content.dark-theme h3,
.preview-content.dark-theme h4,
.preview-content.dark-theme h5,
.preview-content.dark-theme h6 {
  color: #fff;
}

.preview-content h1 {
  font-size: 2.2em;
  border-bottom: 1px solid #eee;
  padding-bottom: 0.3em;
}

.preview-content h2 {
  font-size: 1.8em;
  border-bottom: 1px solid #eee;
  padding-bottom: 0.3em;
}

.preview-content h3 {
  font-size: 1.5em;
}

.preview-content p {
  margin-bottom: 1em;
}

.preview-content a {
  color: #6c63ff;
  text-decoration: none;
}

.preview-content a:hover {
  text-decoration: underline;
}

.preview-content.dark-theme a {
  color: #9d97ff;
}

.preview-content ul,
.preview-content ol {
  padding-left: 2em;
  margin-bottom: 1em;
}

.preview-content img {
  max-width: 100%;
  border-radius: 4px;
}

.preview-content pre {
  background-color: #f6f8fa;
  padding: 16px;
  border-radius: 6px;
  overflow: auto;
  margin-bottom: 1em;
}

.preview-content.dark-theme pre {
  background-color: #444;
}

.preview-content code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  background-color: #f6f8fa;
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-size: 85%;
}

.preview-content.dark-theme code {
  background-color: #444;
}

.preview-content blockquote {
  border-left: 4px solid #ddd;
  padding-left: 16px;
  color: #666;
  margin-bottom: 1em;
}

.preview-content.dark-theme blockquote {
  color: #ccc;
  border-left-color: #666;
}

.preview-content table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 1em;
}

.preview-content th,
.preview-content td {
  padding: 8px 12px;
  border: 1px solid #ddd;
}

.preview-content th {
  background-color: #f6f8fa;
  font-weight: bold;
}

.preview-content.dark-theme th {
  background-color: #444;
}

.preview-content.dark-theme th,
.preview-content.dark-theme td {
  border-color: #666;
}

/* Tips Section */
.markdown-tips {
  background-color: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin-top: 30px;
}

.markdown-tips h4 {
  margin-top: 0;
  margin-bottom: 15px;
  color: #333;
}

.markdown-tips ul {
  margin: 0;
  padding-left: 20px;
}

.markdown-tips li {
  margin-bottom: 10px;
  color: #666;
  line-height: 1.6;
}

.markdown-tips li:last-child {
  margin-bottom: 0;
}

/* Responsive adjustments for Markdown Editor */
@media (max-width: 1024px) {
  .editor-preview-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .editor-section,
  .preview-section {
    height: auto;
  }

  #markdown-input,
  .preview-content {
    min-height: 300px;
  }
}

@media (max-width: 768px) {
  .editor-toolbar {
    justify-content: center;
  }

  .toolbar-btn {
    padding: 6px 10px;
    font-size: 12px;
  }

  #markdown-input,
  .preview-content {
    min-height: 250px;
    padding: 12px;
  }

  .markdown-tips ul {
    padding-left: 15px;
  }

  .markdown-tips li {
    font-size: 0.95rem;
  }
}

/* HTML Validator Specific Styles */
.radio-group {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: normal;
  cursor: pointer;
}

.radio-label input[type="radio"] {
  width: auto;
  margin: 0;
}

.editor-section {
  background-color: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  width: 100%;
}

.editor-section .section-header {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid #eee;
}

.editor-section .section-header h3 {
  margin: 0;
  color: #333;
  display: flex;
  align-items: center;
  gap: 10px;
}

#html-code {
  width: 100%;
  min-height: 300px;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 16px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  resize: vertical;
  line-height: 1.6;
}

#html-code:focus {
  outline: none;
  border-color: #6c63ff;
}

.validation-summary {
  font-size: 14px;
}

.validation-header {
  padding: 15px;
  margin-bottom: 20px;
  border-radius: 6px;
  text-align: center;
}

.validation-header.success {
  background-color: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #c8e6c9;
}

.validation-header.error {
  background-color: #ffebee;
  color: #c62828;
  border: 1px solid #ffcdd2;
}

.validation-header h4 {
  margin: 0 0 8px 0;
  font-size: 1.2rem;
}

.validation-header p {
  margin: 0;
  font-size: 1rem;
}

.validation-details {
  margin-bottom: 20px;
}

.validation-details ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.validation-header {
  height: auto;
}

.validation-header p {
  margin-top: -6px;
}

.validation-item {
  display: flex;
  height: auto;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 15px;
  margin-bottom: 8px;
  border-radius: 4px;
  border-left: 4px solid transparent;
  background-color: #f9f9f9;
}

.validation-item:last-child {
  margin-bottom: 0;
}

.validation-item.error {
  border-left-color: #e74c3c;
  background-color: #fff0f0;
}

.validation-item.warning {
  border-left-color: #f39c12;
  background-color: #fffaf0;
}

.validation-item.info {
  border-left-color: #3498db;
  background-color: #f0f8ff;
}

.item-icon {
  color: #666;
  margin-top: 2px;
  flex-shrink: 0;
}

.validation-item.error .item-icon {
  color: #e74c3c;
}

.validation-item.warning .item-icon {
  color: #f39c12;
}

.validation-item.info .item-icon {
  color: #3498db;
}

.item-message {
  flex: 1;
  line-height: 1.4;
}

.item-line {
  color: #999;
  font-size: 12px;
  background-color: #f0f0f0;
  padding: 2px 6px;
  border-radius: 3px;
  flex-shrink: 0;
}

.validation-info {
  padding: 12px 15px;
  background-color: #f0f8ff;
  border-radius: 4px;
  border-left: 4px solid #3498db;
}

.validation-info p {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.validation-info a {
  color: #6c63ff;
  text-decoration: none;
}

.validation-info a:hover {
  text-decoration: underline;
}

/* Tips Section */
.html-validator-tips {
  border-radius: 12px;
  padding: 25px;
}

.html-validator-tips h4 {
  margin-top: 0;
  margin-bottom: 15px;
  color: #333;
}

.html-validator-tips ul {
  margin: 0;
  padding-left: 20px;
}

.html-validator-tips li {
  margin-bottom: 10px;
  color: #666;
  line-height: 1.6;
}

.html-validator-tips li:last-child {
  margin-bottom: 0;
}

.html-validator-tips code {
  background-color: #f6f8fa;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 85%;
}

/* Responsive adjustments for HTML Validator */
@media (max-width: 1024px) {
  .radio-group {
    flex-direction: column;
    gap: 10px;
  }

  #html-code {
    min-height: 250px;
  }
}

@media (max-width: 768px) {
  .validation-item {
    flex-direction: column;
    gap: 5px;
  }

  .item-line {
    align-self: flex-start;
  }

  #html-code {
    min-height: 200px;
    padding: 12px;
    font-size: 14px;
  }

  .html-validator-tips ul {
    padding-left: 15px;
  }

  .html-validator-tips li {
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .output-actions {
    flex-direction: column;
  }

  .output-actions button {
    width: 100%;
  }
}
/* CSS Generator Specific Styles */
.pattern-options {
  margin-top: 20px;
  padding: 20px;
  background-color: #f9f9f9;
  border-radius: 8px;
  border: 1px solid #eee;
}

.pattern-options.hidden {
  display: none;
}

.pattern-options .option-group {
  margin-bottom: 15px;
}

.pattern-options .option-group:last-child {
  margin-bottom: 0;
}

.pattern-options input[type="range"] {
  width: 60%;
  margin-right: 10px;
}

.pattern-options input[type="range"] + span {
  display: inline-block;
  min-width: 40px;
  text-align: center;
  font-weight: 500;
  color: #6c63ff;
}

.preview-container {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.preview-container.hidden {
  display: none;
}

.preview-box {
  width: 100%;
  height: 200px;
  margin-top: 15px;
  background-color: #f9f9f9;
  border: 2px dashed #ddd;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #333;
  transition: all 0.3s ease;
}

.preview-box span {
  text-align: center;
  max-width: 90%;
}

.css-tips {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.css-tips h4 {
  margin-bottom: 10px;
  color: #333;
}

.css-tips ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #666;
}

.css-tips li {
  margin-bottom: 5px;
}

.css-tips li:last-child {
  margin-bottom: 0;
}

/* Responsive adjustments for CSS Generator */
@media (max-width: 768px) {
  .pattern-options input[type="range"] {
    width: 50%;
  }

  .pattern-options input[type="range"] + span {
    min-width: 35px;
    font-size: 0.9rem;
  }

  .preview-box {
    height: 150px;
    font-size: 20px;
  }

  .css-tips ul {
    padding-left: 15px;
  }

  .css-tips li {
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .pattern-options {
    padding: 15px;
  }

  .pattern-options input[type="range"] {
    width: 45%;
  }

  .output-actions {
    flex-direction: column;
    gap: 10px;
  }

  .output-actions button {
    width: 100%;
  }

  .preview-box {
    height: 120px;
    font-size: 18px;
  }
}
/* Online Drawing Board Specific Styles */
.tool-buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.drawing-tool-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  border: 1px solid #ddd;
  background-color: #fff;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

.drawing-tool-btn:hover {
  background-color: #f5f5f5;
  border-color: #6c63ff;
}

.drawing-tool-btn.active {
  background-color: #6c63ff;
  color: white;
  border-color: #6c63ff;
}

.size-inputs {
  display: flex;
  gap: 20px;
  margin-top: 10px;
}

.size-inputs div {
  flex: 1;
}

.size-inputs input {
  width: 100%;
}

.action-buttons {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.canvas-container {
  width: 100%;
  height: fit-content;
  margin-top: 20px;
  background-color: #f9f9f9;
  border: 2px solid #ddd;
  border-radius: 8px;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px;
  max-height: 600px;
}

#drawing-canvas {
  background-color: white;
  border: 1px solid #eee;
  cursor: crosshair;
}

.drawing-tips {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.drawing-tips h4 {
  margin-bottom: 10px;
  color: #333;
}

.drawing-tips ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #666;
}

.drawing-tips li {
  margin-bottom: 5px;
}

.drawing-tips li:last-child {
  margin-bottom: 0;
}

/* Responsive adjustments for Online Drawing Board */
@media (max-width: 1024px) {
  .tool-buttons {
    grid-template-columns: repeat(3, 1fr);
  }

  .canvas-container {
    max-height: 500px;
  }
}

@media (max-width: 768px) {
  .tool-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .size-inputs {
    flex-direction: column;
    gap: 10px;
  }

  .action-buttons {
    flex-direction: column;
  }

  .action-buttons button {
    width: 100%;
  }

  .canvas-container {
    max-height: 400px;
    padding: 10px;
  }

  #drawing-canvas {
    max-width: 100%;
    height: auto;
  }

  .drawing-tips ul {
    padding-left: 15px;
  }

  .drawing-tips li {
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .tool-buttons {
    grid-template-columns: 1fr;
  }

  .drawing-tool-btn {
    font-size: 0.85rem;
  }

  .canvas-container {
    max-height: 300px;
  }
}

/* Hex Color Converter Specific Styles */
/* Input Section Specific Styles */
.input-section {
  background-color: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.input-section .section-header {
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid #eee;
}

.input-section .section-header h3 {
  margin: 0;
  color: #333;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
}

/* Input Groups */
.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #333;
  font-size: 0.95rem;
}

.input-group label small {
  color: #666;
  font-weight: normal;
  margin-left: 5px;
}

/* Form Controls */
.input-section input[type="text"],
.input-section input[type="number"],
.input-section input[type="email"],
.input-section input[type="password"],
.input-section input[type="url"],
.input-section textarea,
.input-section select {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 16px;
  font-family: inherit;
  transition: all 0.3s ease;
  background-color: #fff;
  box-sizing: border-box;
}

.input-section input[type="text"]:focus,
.input-section input[type="number"]:focus,
.input-section input[type="email"]:focus,
.input-section input[type="password"]:focus,
.input-section input[type="url"]:focus,
.input-section textarea:focus,
.input-section select:focus {
  outline: none;
  border-color: #6c63ff;
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.input-section textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

/* Radio and Checkbox */
.input-section .checkbox-group,
.input-section .radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.input-section .checkbox-label,
.input-section .radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-weight: normal;
  color: #333;
}

.input-section .checkbox-label input[type="checkbox"],
.input-section .radio-label input[type="radio"] {
  width: auto;
  margin: 0;
  transform: scale(1.1);
}

/* Range Input */
.input-section input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #ddd;
  outline: none;
  -webkit-appearance: none;
}

.input-section input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #6c63ff;
  cursor: pointer;
  transition: all 0.2s ease;
}

.input-section input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 0 0 6px rgba(108, 99, 255, 0.15);
}

.input-section input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #6c63ff;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.input-section input[type="range"]::-moz-range-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 0 0 6px rgba(108, 99, 255, 0.15);
}

/* Buttons */
.input-section .action-buttons {
  display: flex;
  gap: 12px;
  margin-top: 25px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.input-section button {
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 120px;
}

.input-section button.primary {
  background-color: #6c63ff;
  color: white;
}

.input-section button.primary:hover {
  background-color: #5a52d1;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}

.input-section button.secondary {
  background-color: #f5f5f5;
  color: #333;
  border: 1px solid #ddd;
}

.input-section button.secondary:hover {
  background-color: #e5e5e5;
  border-color: #ccc;
}

.input-section button.danger {
  background-color: #e74c3c;
  color: white;
}

.input-section button.danger:hover {
  background-color: #c0392b;
}

/* Input Prefix */
.input-section .input-with-prefix {
  position: relative;
}

.input-section .input-prefix {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  font-weight: 500;
  color: #666;
  pointer-events: none;
}

.input-section .input-with-prefix input {
  padding-left: 40px;
}

/* Error States */
.input-section .input-error {
  border-color: #e74c3c !important;
}

.input-section .error-message {
  color: #e74c3c;
  font-size: 0.85rem;
  margin-top: 5px;
  display: block;
}

/* Helper Text */
.input-section .helper-text {
  color: #666;
  font-size: 0.85rem;
  margin-top: 5px;
  line-height: 1.4;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .input-section {
    padding: 20px;
  }

  .input-section .section-header {
    margin-bottom: 20px;
  }

  .input-section .section-header h3 {
    font-size: 1.2rem;
  }

  .input-group {
    margin-bottom: 18px;
  }

  .input-section input[type="text"],
  .input-section input[type="number"],
  .input-section input[type="email"],
  .input-section input[type="password"],
  .input-section input[type="url"],
  .input-section textarea,
  .input-section select {
    padding: 10px 12px;
    font-size: 15px;
  }

  .input-section button {
    padding: 10px 20px;
    font-size: 15px;
    min-width: auto;
    flex: 1;
  }

  .input-section .action-buttons {
    flex-wrap: wrap;
    flex-direction: row;
    gap: 10px;
  }

  .input-section .checkbox-group,
  .input-section .radio-group {
    flex-direction: column;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .input-section {
    padding: 15px;
  }

  .input-section .section-header h3 {
    font-size: 1.1rem;
  }

  .input-section button {
    width: 100%;
    padding: 10px;
  }

  .input-section textarea {
    min-height: 80px;
  }
}

.input-with-prefix {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 15px;
  font-size: 1.2rem;
  font-weight: bold;
  color: #6c63ff;
}

#hex-input {
  padding-left: 35px;
}

.color-preview-container {
  width: 100%;
  height: 200px;
  margin-top: 10px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

#color-preview {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.color-details {
  margin-top: 15px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

.preset-colors {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.preset-colors h4 {
  margin-bottom: 15px;
  color: #333;
}

.color-palette {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
  gap: 10px;
}

.preset-color {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
}

.preset-color:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  border-color: #6c63ff;
}

.color-tips {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.color-tips h4 {
  margin-bottom: 10px;
  color: #333;
}

.color-tips ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #666;
}

.color-tips li {
  margin-bottom: 5px;
}

.color-tips li:last-child {
  margin-bottom: 0;
}

/* Toast message */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #333;
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  visibility: visible;
}

/* Responsive adjustments for Hex Color Converter */
@media (max-width: 768px) {
  .color-palette {
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: 8px;
  }

  .color-preview-container {
    height: 150px;
  }

  #color-preview {
    font-size: 1.2rem;
  }

  .color-details {
    font-size: 1rem;
  }

  .action-buttons {
    flex-wrap: wrap;
  }

  .action-buttons button {
    flex: 1 1 45%;
    min-width: 150px;
  }

  .color-tips ul {
    padding-left: 15px;
  }

  .color-tips li {
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .input-group {
    margin-bottom: 15px;
  }

  .color-palette {
    grid-template-columns: repeat(auto-fill, minmax(35px, 1fr));
    gap: 6px;
  }

  .color-preview-container {
    height: 120px;
  }

  #color-preview {
    font-size: 1rem;
  }

  .action-buttons {
    flex-direction: column;
  }

  .action-buttons button {
    width: 100%;
    margin-bottom: 10px;
  }

  .action-buttons button:last-child {
    margin-bottom: 0;
  }
}
/* Currency Converter Specific Styles */
.currency-tips {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.currency-tips h4 {
  margin-bottom: 10px;
  color: #333;
}

.currency-tips ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
  color: #666;
}

.currency-tips li {
  margin-bottom: 5px;
}

.currency-tips li:last-child {
  margin-bottom: 0;
}

/* Responsive adjustments for Currency Converter */
@media (max-width: 768px) {
  .currency-tips ul {
    padding-left: 15px;
  }

  .currency-tips li {
    font-size: 0.95rem;
  }

  .url-actions {
    flex-direction: column;
  }

  .url-actions button {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .tool-options,
  .tool-output {
    padding: 15px;
  }

  .option-group {
    margin-bottom: 15px;
  }

  .tool-icon-large {
    font-size: 40px;
    width: 70px;
    height: 70px;
  }

  .tool-info h1 {
    font-size: 1.6rem;
  }
}

/* Text Comparison Tool Styles */
.text-comparison-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: flex-start;
}

.text-column {
  flex: 1;
  min-width: 300px;
}

.text-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.text-header label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}

.text-actions {
  display: flex;
  gap: 0.5rem;
}

.text-input {
  width: 100%;
  min-height: 250px;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--input-bg);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  resize: vertical;
  transition: border-color 0.3s ease;
}

.text-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.action-btn{
  width: auto !important;
  min-width: auto !important;
}

.comparison-actions {
  display: flex;
  gap: 0.6rem;
  padding: 0.6rem;
  align-self: center;
}

.primary-btn.large {
  padding: 0.75rem 1.5rem;
  font-size: 0.8rem;
}

.secondary-btn {
  padding: 0.5rem 0.4rem !important;
  background-color: var(--secondary-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 100px !important;
  font-size: 0.9rem;
}

.secondary-btn:hover {
  background-color: var(--hover-bg);
  border-color: var(--primary-color);
}

.action-btn.small {
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
}

.results-container {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-top: 1rem;
}

.comparison-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-value.addition {
  color: var(--success-color);
}

.stat-value.deletion {
  color: var(--error-color);
}

.line-by-line-comparison {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  max-height: 500px;
  overflow-y: auto;
}

.line-comparison {
  display: flex;
  border-bottom: 1px solid var(--border-color);
}

.line-comparison:last-child {
  border-bottom: none;
}

.comparison-column {
  flex: 1;
  padding: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.4;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.comparison-column.original {
  border-right: 1px solid var(--border-color);
}

.comparison-column.indicator {
  flex: 0 0 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--secondary-bg);
  border-right: 1px solid var(--border-color);
}

.comparison-column.modified {
  /* No border needed on the right */
}

.comparison-column.deleted {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error-color);
  text-decoration: line-through;
}

.comparison-column.added {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
  font-weight: 600;
}

.indicator i.change {
  color: var(--warning-color);
}

.indicator i.addition {
  color: var(--success-color);
}

.indicator i.deletion {
  color: var(--error-color);
}

.no-results {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

/* Text Comparison Tips Section */
.text-comparison-tips ul {
  list-style-type: none;
  padding: 0;
}

.text-comparison-tips li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.text-comparison-tips li::before {
  content: '•';
  color: var(--primary-color);
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .text-comparison-container {
    flex-direction: column;
  }

  .comparison-actions {
    flex-direction: row;
    justify-content: center;
    align-self: auto;
  }

  .primary-btn.large {
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 768px) {
  .comparison-stats {
    justify-content: center;
  }

  .text-input {
    min-height: 200px;
  }

  .output-actions {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .comparison-actions {
    flex-direction: column;
    align-items: center;
  }

  .comparison-column {
    font-size: 0.8rem;
  }

  .comparison-column.indicator {
    flex: 0 0 25px;
  }
}