/* Professional JSON Formatter Styles - Canva-inspired with improved mobile responsiveness */
    :root {
      --primary-color: #00c4cc;
      --primary-hover: #00b0b8;
      --secondary-color: #8b3dff;
      --secondary-hover: #7a35e0;
      --accent-color: #ff5757;
      --light-bg: #f9fafb;
      --dark-bg: #1a1a2e;
      --darker-bg: #16162a;
      --border-color: #e5e7eb;
      --dark-border: #2d2d42;
      --text-color: #374151;
      --light-text: #9ca3af;
      --dark-text-color: #f3f4f6;
      --dark-label-color: #e5e7eb;
      --dark-secondary-text: #cbd5e1;
      --success-color: #10b981;
      --error-color: #ef4444;
      --warning-color: #f59e0b;
      --radius: 8px;
      --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --transition: all 0.2s ease;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
      background-color: #f5f5f7;
      color: var(--text-color);
      line-height: 1.5;
    }

    .simple-json-formatter {
      max-width: 1200px;
      margin: 20px auto;
      background: #ffffff;
      border-radius: 12px;
      box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
      padding: 20px;
      border: 1px solid var(--border-color);
      color: var(--text-color);
      width: calc(100% - 30px); /* Account for margins */
    }

    .formatter-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 15px;
      border-bottom: 2px solid var(--border-color);
      flex-wrap: wrap;
      gap: 10px;
    }

    .formatter-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary-color);
      margin: 0;
    }

    .formatter-settings {
      display: flex;
      gap: 15px;
      align-items: center;
    }

    .theme-toggle {
      display: flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
    }

    .theme-toggle-label {
      font-size: 14px;
      font-weight: 500;
    }

    .theme-toggle-switch {
      position: relative;
      display: inline-block;
      width: 48px;
      height: 24px;
    }

    .theme-toggle-switch input {
      opacity: 0;
      width: 0;
      height: 0;
    }

    .theme-toggle-slider {
      position: absolute;
      cursor: pointer;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-color: #cbd5e1;
      transition: var(--transition);
      border-radius: 24px;
    }

    .theme-toggle-slider:before {
      position: absolute;
      content: "☀️";
      display: flex;
      align-items: center;
      justify-content: center;
      height: 18px;
      width: 18px;
      left: 3px;
      bottom: 3px;
      background-color: white;
      transition: var(--transition);
      border-radius: 50%;
      font-size: 12px;
    }

    input:checked + .theme-toggle-slider {
      background-color: var(--primary-color);
    }

    input:checked + .theme-toggle-slider:before {
      transform: translateX(24px);
      content: "🌙";
    }

    .formatter-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 20px;
    }

    .formatter-column {
      flex: 1 1 300px;
      min-width: 0; /* Allow columns to shrink below min-content */
      position: relative;
    }

    .formatter-column-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 15px;
      flex-wrap: wrap;
      gap: 10px;
    }

    .formatter-column h3 {
      margin: 0;
      color: var(--text-color);
      font-size: 18px;
      font-weight: 600;
    }

    .button-row {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .formatter-button {
      padding: 10px 16px;
      background: var(--light-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      cursor: pointer;
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition);
      color: var(--text-color);
      display: flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }

    .formatter-button:hover {
      background: #f1f5f9;
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }

    .formatter-button:active {
      transform: translateY(0);
    }

    .formatter-button svg {
      width: 20px;
      height: 20px;
    }

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

    .primary-btn:hover {
      background: var(--primary-hover);
    }

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

    .secondary-btn:hover {
      background: var(--secondary-hover);
    }

    #json-input {
      width: 100%;
      height: 300px;
      padding: 15px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      font-family: 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;
      font-size: 14px;
      line-height: 1.6;
      resize: vertical;
      color: var(--text-color);
      background-color: var(--light-bg);
      transition: var(--transition);
    }

    #json-input:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(0, 196, 204, 0.2);
    }

    #json-output {
      width: 100%;
      height: 300px;
      padding: 15px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      background: var(--light-bg);
      overflow: auto;
      margin: 0;
      font-family: 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;
      font-size: 14px;
      line-height: 1.6;
      color: var(--text-color);
      position: relative;
      word-wrap: break-word;
    }

    .placeholder {
      color: var(--light-text);
      font-style: italic;
    }

    .formatter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      margin-top: 15px;
    }

    .option-group {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .option-group label {
      font-size: 14px;
      cursor: pointer;
      font-weight: 500;
    }

    .option-select {
      padding: 6px 10px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      background: white;
      font-size: 14px;
      color: var(--text-color);
    }

    #status-message {
      padding: 12px 15px;
      border-radius: var(--radius);
      margin-top: 15px;
      display: none;
      font-size: 14px;
      font-weight: 500;
      animation: fadeIn 0.3s ease;
    }

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

    .success {
      background-color: rgba(16, 185, 129, 0.1);
      color: var(--success-color);
      border: 1px solid rgba(16, 185, 129, 0.2);
    }

    .error {
      background-color: rgba(239, 68, 68, 0.1);
      color: var(--error-color);
      border: 1px solid rgba(239, 68, 68, 0.2);
    }

    .warning {
      background-color: rgba(245, 158, 11, 0.1);
      color: var(--warning-color);
      border: 1px solid rgba(245, 158, 11, 0.2);
    }

    /* JSON syntax highlighting - enhanced colors */
    .json-key {
      color: #2563eb;
      font-weight: 500;
    }

    .json-string {
      color: #16a34a;
    }

    .json-number {
      color: #dc2626;
    }

    .json-boolean {
      color: #7c3aed;
      font-weight: bold;
    }

    .json-null {
      color: #64748b;
      font-style: italic;
    }

    /* Line numbers */
    .line-numbers {
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 40px;
      padding: 15px 5px;
      background: #e2e8f0;
      border-right: 1px solid #cbd5e1;
      color: #64748b;
      font-size: 12px;
      line-height: 1.6;
      text-align: right;
      user-select: none;
    }

    .with-line-numbers {
      padding-left: 50px;
    }

    .with-line-numbers .json-content {
      padding-left: 10px;
    }

    /* Dark mode - IMPROVED for better visibility */
    .dark-mode {
      background-color: var(--dark-bg);
      color: var(--dark-text-color);
    }

    .dark-mode .formatter-title {
      color: #22d3db;
    }

    .dark-mode .formatter-button {
      background: #2d2d42;
      border-color: #3d3d56;
      color: var(--dark-text-color);
    }

    .dark-mode .formatter-button:hover {
      background: #3d3d56;
    }

    .dark-mode .primary-btn {
      background: var(--primary-color);
      border-color: var(--primary-hover);
    }

    .dark-mode .primary-btn:hover {
      background: var(--primary-hover);
    }

    .dark-mode #json-input,
    .dark-mode #json-output {
      background-color: var(--darker-bg);
      border-color: var(--dark-border);
      color: var(--dark-text-color);
    }

    .dark-mode .placeholder {
      color: #94a3b8;
    }

    .dark-mode .formatter-header {
      border-bottom-color: var(--dark-border);
    }

    /* FIXED: Dark mode label colors */
    .dark-mode .option-group label,
    .dark-mode .theme-toggle-label,
    .dark-mode .formatter-column h3,
    .dark-mode .saved-json-list h4,
    .dark-mode .modal-title,
    .dark-mode .form-group label,
    .dark-mode .save-option label {
      color: var(--dark-label-color);
    }

    .dark-mode .option-select {
      background: #2d2d42;
      border-color: #3d3d56;
      color: var(--dark-text-color);
    }

    .dark-mode .line-numbers {
      background: #2d2d42;
      border-color: #3d3d56;
      color: #94a3b8;
    }

    .dark-mode .json-key {
      color: #60a5fa;
    }

    .dark-mode .json-string {
      color: #4ade80;
    }

    .dark-mode .json-number {
      color: #f87171;
    }

    .dark-mode .json-boolean {
      color: #a78bfa;
    }

    .dark-mode .json-null {
      color: #94a3b8;
    }

    /* Loading spinner */
    .spinner {
      display: inline-block;
      width: 20px;
      height: 20px;
      border: 3px solid rgba(255, 255, 255, 0.3);
      border-radius: 50%;
      border-top-color: white;
      animation: spin 1s ease-in-out infinite;
    }

    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    /* Tooltip */
    .tooltip {
      position: relative;
      display: inline-block;
    }

    .tooltip .tooltip-text {
      visibility: hidden;
      width: 140px;
      background-color: #333;
      color: #fff;
      text-align: center;
      border-radius: 6px;
      padding: 8px;
      position: absolute;
      z-index: 1;
      bottom: 125%;
      left: 50%;
      margin-left: -70px;
      opacity: 0;
      transition: opacity 0.3s;
      font-size: 14px;
      pointer-events: none;
    }

    .tooltip:hover .tooltip-text {
      visibility: visible;
      opacity: 1;
    }

    /* Save functionality - IMPROVED with Canva style */
    .saved-json-list {
      margin-top: 20px;
      border-top: 1px solid var(--border-color);
      padding-top: 15px;
    }

    .saved-json-list h4 {
      margin-top: 0;
      margin-bottom: 10px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .saved-json-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 15px;
      flex-wrap: wrap;
      gap: 10px;
    }

    .saved-json-title {
      font-size: 18px;
      font-weight: 600;
      margin: 0;
    }

    .saved-json-actions-header {
      display: flex;
      gap: 10px;
    }

    .saved-json-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 16px;
      background: var(--light-bg);
      border-radius: var(--radius);
      margin-bottom: 10px;
      transition: var(--transition);
      border: 1px solid var(--border-color);
      flex-wrap: wrap;
      gap: 10px;
    }

    .saved-json-item:hover {
      background: #f1f5f9;
      transform: translateY(-1px);
      box-shadow: var(--shadow);
    }

    .saved-json-name {
      font-weight: 500;
      flex-grow: 1;
      min-width: 150px;
    }

    .saved-json-date {
      color: var(--light-text);
      font-size: 12px;
      margin-right: 15px;
    }

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

    .saved-json-action {
      background: none;
      border: none;
      cursor: pointer;
      color: var(--text-color);
      padding: 8px;
      border-radius: 6px;
      transition: var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .saved-json-action svg {
      width: 22px;
      height: 22px;
    }

    .saved-json-action:hover {
      background: rgba(0, 0, 0, 0.05);
      color: var(--primary-color);
    }

    .dark-mode .saved-json-item {
      background: #2d2d42;
      border-color: #3d3d56;
    }

    .dark-mode .saved-json-item:hover {
      background: #3d3d56;
    }

    .dark-mode .saved-json-action {
      color: var(--dark-text-color);
    }

    .dark-mode .saved-json-action:hover {
      background: rgba(255, 255, 255, 0.1);
      color: var(--primary-color);
    }

    .dark-mode .saved-json-date {
      color: #94a3b8;
    }

    /* Modal - Canva style */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.5);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 1000;
      visibility: hidden;
      opacity: 0;
      transition: var(--transition);
      backdrop-filter: blur(3px);
      padding: 15px;
    }

    .modal-overlay.active {
      visibility: visible;
      opacity: 1;
    }

    .modal {
      background: white;
      border-radius: 12px;
      padding: 20px;
      width: 100%;
      max-width: 500px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
      transform: translateY(-20px);
      transition: var(--transition);
    }

    .modal-overlay.active .modal {
      transform: translateY(0);
    }

    .modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }

    .modal-title {
      margin: 0;
      font-size: 20px;
      font-weight: 600;
      color: var(--text-color);
    }

    .modal-close {
      background: none;
      border: none;
      cursor: pointer;
      font-size: 24px;
      color: var(--light-text);
      transition: var(--transition);
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
    }

    .modal-close:hover {
      background: var(--light-bg);
      color: var(--text-color);
    }

    .modal-body {
      margin-bottom: 24px;
    }

    .modal-footer {
      display: flex;
      justify-content: flex-end;
      gap: 12px;
      flex-wrap: wrap;
    }

    .dark-mode .modal {
      background: var(--dark-bg);
      color: var(--dark-text-color);
    }

    .dark-mode .modal-close:hover {
      background: #3d3d56;
    }

    /* Form elements - Canva style */
    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
      color: var(--text-color);
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      font-size: 15px;
      transition: var(--transition);
      background: white;
      color: var(--text-color);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(0, 196, 204, 0.2);
    }

    .dark-mode .form-control {
      background: #2d2d42;
      border-color: #3d3d56;
      color: var(--dark-text-color);
    }

    /* Radio buttons for save options - Canva style */
    .save-options {
      margin-top: 20px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }

    .dark-mode .save-options {
      border-top-color: var(--dark-border);
    }

    .save-option {
      display: flex;
      align-items: flex-start;
      margin-bottom: 12px;
      padding: 10px;
      border-radius: var(--radius);
      transition: var(--transition);
      cursor: pointer;
    }

    .save-option:hover {
      background: var(--light-bg);
    }

    .dark-mode .save-option:hover {
      background: #2d2d42;
    }

    .save-option input[type="radio"] {
      appearance: none;
      -webkit-appearance: none;
      width: 20px;
      height: 20px;
      border: 2px solid var(--border-color);
      border-radius: 50%;
      margin-right: 12px;
      position: relative;
      cursor: pointer;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .save-option input[type="radio"]:checked {
      border-color: var(--primary-color);
    }

    .save-option input[type="radio"]:checked::after {
      content: '';
      position: absolute;
      width: 10px;
      height: 10px;
      background: var(--primary-color);
      border-radius: 50%;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
    }

    .dark-mode .save-option input[type="radio"] {
      border-color: #3d3d56;
    }

    .dark-mode .save-option input[type="radio"]:checked {
      border-color: var(--primary-color);
    }

    .save-option label {
      font-size: 15px;
      cursor: pointer;
      display: flex;
      flex-direction: column;
    }

    .save-option-description {
      font-size: 13px;
      color: var(--light-text);
      margin-top: 4px;
    }

    .dark-mode .save-option-description {
      color: var(--dark-secondary-text);
    }

    /* No saved items message */
    .no-saved-items {
      padding: 20px;
      text-align: center;
      color: var(--light-text);
      background: var(--light-bg);
      border-radius: var(--radius);
      font-style: italic;
    }

    .dark-mode .no-saved-items {
      background: #2d2d42;
      color: #94a3b8;
    }

    /* Delete all button - Canva style */
    .delete-all-btn {
      padding: 8px 14px;
      font-size: 14px;
      background: var(--light-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      cursor: pointer;
      color: var(--accent-color);
      transition: var(--transition);
      font-weight: 500;
    }

    .delete-all-btn:hover {
      background: #fee2e2;
      border-color: #fecaca;
    }

    .dark-mode .delete-all-btn {
      background: #2d2d42;
      border-color: #3d3d56;
      color: var(--accent-color);
    }

    .dark-mode .delete-all-btn:hover {
      background: rgba(239, 68, 68, 0.2);
      border-color: rgba(239, 68, 68, 0.3);
    }

    /* Checkbox styling - Canva style */
    input[type="checkbox"] {
      appearance: none;
      -webkit-appearance: none;
      width: 20px;
      height: 20px;
      border: 2px solid var(--border-color);
      border-radius: 4px;
      outline: none;
      cursor: pointer;
      position: relative;
      background-color: white;
      vertical-align: middle;
      transition: var(--transition);
    }

    input[type="checkbox"]:checked {
      background-color: var(--primary-color);
      border-color: var(--primary-color);
    }

    input[type="checkbox"]:checked::after {
      content: '';
      position: absolute;
      left: 6px;
      top: 2px;
      width: 6px;
      height: 12px;
      border: solid white;
      border-width: 0 2px 2px 0;
      transform: rotate(45deg);
    }

    .dark-mode input[type="checkbox"] {
      background-color: #2d2d42;
      border-color: #3d3d56;
    }

    .dark-mode input[type="checkbox"]:checked {
      background-color: var(--primary-color);
      border-color: var(--primary-color);
    }

    /* Improved mobile responsiveness */
    @media (max-width: 768px) {
      .simple-json-formatter {
        margin: 10px auto;
        padding: 15px;
        border-radius: 8px;
        width: calc(100% - 20px);
      }
      
      .formatter-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
      }
      
      .formatter-settings {
        width: 100%;
        justify-content: flex-start;
      }
      
      .formatter-column-header {
        flex-direction: column;
        align-items: flex-start;
      }
      
      .button-row {
        margin-top: 10px;
        width: 100%;
        justify-content: space-between;
      }
      
      .formatter-button {
        padding: 8px 10px;
        font-size: 13px;
      }
      
      .formatter-button svg {
        width: 14px;
        height: 14px;
      }
      
      #json-input, #json-output {
        height: 250px;
        font-size: 13px;
      }
      
      .formatter-options {
        flex-direction: column;
        align-items: flex-start;
      }
      
      .saved-json-item {
        flex-direction: column;
        align-items: flex-start;
      }
      
      .saved-json-name {
        margin-bottom: 5px;
      }
      
      .saved-json-date {
        margin-right: 0;
        margin-bottom: 10px;
      }
      
      .saved-json-actions {
        width: 100%;
        justify-content: flex-end;
      }
      
      .modal {
        padding: 15px;
      }
      
      .modal-footer {
        justify-content: center;
      }
      
      .modal-footer .formatter-button {
        flex: 1;
        justify-content: center;
      }
      
      .tooltip .tooltip-text {
        display: none;
      }
    }

    /* Small mobile devices */
    @media (max-width: 480px) {
      .formatter-button {
        padding: 6px 8px;
        font-size: 12px;
      }
      
      .formatter-button svg {
        width: 12px;
        height: 12px;
      }
      
      .formatter-title {
        font-size: 20px;
      }
      
      .saved-json-actions {
        gap: 5px;
      }
      
      .saved-json-action svg {
        width: 16px;
        height: 16px;
      }
    }