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

    :root {
      --color-navy: #1e3a5f;
      --color-blue: #3b82f6;
      --color-green: #10b981;
      --color-amber: #f59e0b;
      --color-red: #ef4444;
      --color-light-gray: #f9fafb;
      --color-gray-200: #e5e7eb;
      --color-gray-300: #d1d5db;
      --color-gray-600: #4b5563;
      --color-gray-900: #111827;
      --color-white: #ffffff;
      --spacing-4: 1rem;
      --spacing-6: 1.5rem;
      --spacing-8: 2rem;
      --spacing-12: 3rem;
      --radius-lg: 8px;
      --radius-xl: 12px;
      --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
      --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    }

    body {
      font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
      background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
      color: var(--color-gray-900);
      line-height: 1.6;
    }

    #root {
      min-height: 100vh;
      padding: var(--spacing-6);
    }

    .estimator-wrapper {
      max-width: 1200px;
      margin: 0 auto;
    }

    .header {
      text-align: center;
      margin-bottom: var(--spacing-12);
      animation: fadeInDown 0.6s ease-out;
    }

    .header h1 {
      font-size: 2.5rem;
      color: var(--color-navy);
      margin-bottom: var(--spacing-4);
      font-weight: 700;
    }

    .header p {
      font-size: 1.125rem;
      color: var(--color-gray-600);
      margin-bottom: var(--spacing-8);
    }

    .progress-bar {
      width: 100%;
      height: 8px;
      background: var(--color-gray-200);
      border-radius: 999px;
      overflow: hidden;
      margin-bottom: var(--spacing-8);
    }

    .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--color-blue), var(--color-green));
      transition: width 0.3s ease;
    }

    .step-indicator {
      display: flex;
      justify-content: space-between;
      margin-bottom: var(--spacing-8);
      gap: var(--spacing-4);
    }

    .step-dot {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--color-gray-200);
      color: var(--color-gray-600);
      font-weight: 600;
      font-size: 0.875rem;
      transition: all 0.3s ease;
    }

    .step-dot.active {
      background: var(--color-blue);
      color: var(--color-white);
      box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
    }

    .step-dot.completed {
      background: var(--color-green);
      color: var(--color-white);
    }

    .step-line {
      flex: 1;
      height: 2px;
      background: var(--color-gray-200);
      margin: 19px 0;
      transition: background 0.3s ease;
    }

    .step-line.active {
      background: var(--color-blue);
    }

    .step-content {
      background: var(--color-white);
      border-radius: var(--radius-xl);
      padding: var(--spacing-8);
      box-shadow: var(--shadow-md);
      margin-bottom: var(--spacing-8);
      animation: fadeIn 0.4s ease-out;
    }

    .step-title {
      font-size: 1.5rem;
      color: var(--color-navy);
      margin-bottom: var(--spacing-6);
      font-weight: 700;
    }

    .step-description {
      color: var(--color-gray-600);
      margin-bottom: var(--spacing-8);
    }

    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--spacing-6);
      margin-bottom: var(--spacing-8);
    }

    .card {
      padding: var(--spacing-6);
      border: 2px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      cursor: pointer;
      transition: all 0.3s ease;
      background: var(--color-white);
      text-align: center;
    }

    .card:hover {
      border-color: var(--color-blue);
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }

    .card.selected {
      border-color: var(--color-blue);
      background: rgba(59, 130, 246, 0.05);
      box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }

    .card-icon {
      font-size: 2.5rem;
      margin-bottom: var(--spacing-4);
    }

    .card-title {
      font-size: 1rem;
      font-weight: 600;
      color: var(--color-navy);
      margin-bottom: var(--spacing-2);
    }

    .card-description {
      font-size: 0.875rem;
      color: var(--color-gray-600);
      margin-bottom: var(--spacing-4);
    }

    .card-price {
      font-size: 0.85rem;
      color: var(--color-blue);
      font-weight: 600;
    }

    .radio-group, .checkbox-group {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-4);
      margin-bottom: var(--spacing-6);
    }

    .radio-label, .checkbox-label {
      display: flex;
      align-items: center;
      padding: var(--spacing-4) var(--spacing-6);
      border: 2px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      cursor: pointer;
      transition: all 0.3s ease;
      background: var(--color-white);
      font-weight: 500;
    }

    .radio-label:hover, .checkbox-label:hover {
      border-color: var(--color-blue);
      background: rgba(59, 130, 246, 0.02);
    }

    .radio-label.selected, .checkbox-label.selected {
      border-color: var(--color-blue);
      background: rgba(59, 130, 246, 0.05);
    }

    input[type="radio"], input[type="checkbox"] {
      margin-right: var(--spacing-4);
      width: 18px;
      height: 18px;
      cursor: pointer;
      accent-color: var(--color-blue);
    }

    .label-content {
      flex: 1;
    }

    .label-title {
      font-weight: 600;
      color: var(--color-navy);
      margin-bottom: 0.25rem;
    }

    .label-description {
      font-size: 0.85rem;
      color: var(--color-gray-600);
      font-weight: 400;
    }

    .summary-bar {
      position: sticky;
      bottom: 0;
      background: var(--color-white);
      border-top: 2px solid var(--color-gray-200);
      padding: var(--spacing-4) var(--spacing-6);
      display: flex;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.07);
      z-index: 100;
    }

    .summary-label {
      font-weight: 600;
      color: var(--color-navy);
    }

    .summary-value {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--color-green);
    }

    .button-group {
      display: flex;
      gap: var(--spacing-4);
      margin-top: var(--spacing-8);
    }

    button {
      flex: 1;
      padding: var(--spacing-4) var(--spacing-8);
      border: none;
      border-radius: var(--radius-lg);
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

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

    .btn-primary:hover:not(:disabled) {
      background: #2563eb;
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
    }

    .btn-primary:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    .btn-secondary {
      background: var(--color-gray-200);
      color: var(--color-navy);
    }

    .btn-secondary:hover:not(:disabled) {
      background: var(--color-gray-300);
      transform: translateY(-2px);
    }

    .results-container {
      animation: fadeIn 0.6s ease-out;
    }

    .cost-summary {
      background: linear-gradient(135deg, var(--color-navy), var(--color-blue));
      color: var(--color-white);
      padding: var(--spacing-8);
      border-radius: var(--radius-xl);
      margin-bottom: var(--spacing-8);
      box-shadow: var(--shadow-lg);
    }

    .cost-summary h2 {
      font-size: 1.25rem;
      margin-bottom: var(--spacing-6);
      opacity: 0.9;
    }

    .cost-range {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--spacing-6);
    }

    .cost-item {
      text-align: center;
    }

    .cost-label {
      font-size: 0.875rem;
      opacity: 0.9;
      margin-bottom: var(--spacing-2);
    }

    .cost-value {
      font-size: 2rem;
      font-weight: 700;
      color: var(--color-green);
    }

    .timeline-badge {
      background: rgba(255, 255, 255, 0.2);
      padding: var(--spacing-4) var(--spacing-6);
      border-radius: var(--radius-lg);
      font-size: 0.95rem;
      margin-top: var(--spacing-4);
    }

    .results-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: var(--spacing-6);
      margin-bottom: var(--spacing-8);
    }

    .result-card {
      background: var(--color-white);
      padding: var(--spacing-6);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-md);
    }

    .result-card h3 {
      color: var(--color-navy);
      font-size: 1.125rem;
      margin-bottom: var(--spacing-4);
      display: flex;
      align-items: center;
      gap: var(--spacing-4);
    }

    .team-members {
      display: grid;
      gap: var(--spacing-4);
    }

    .team-member {
      display: flex;
      align-items: center;
      gap: var(--spacing-4);
      padding: var(--spacing-4);
      background: var(--color-light-gray);
      border-radius: var(--radius-lg);
    }

    .member-icon {
      font-size: 1.5rem;
    }

    .member-info {
      flex: 1;
    }

    .member-name {
      font-weight: 600;
      color: var(--color-navy);
    }

    .member-description {
      font-size: 0.85rem;
      color: var(--color-gray-600);
    }

    .chart-container {
      background: var(--color-white);
      padding: var(--spacing-6);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-md);
      margin-bottom: var(--spacing-6);
      overflow-x: auto;
    }

    .comparison-cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--spacing-6);
      margin-bottom: var(--spacing-8);
    }

    .comparison-card {
      background: var(--color-white);
      border: 2px solid var(--color-gray-200);
      border-radius: var(--radius-xl);
      padding: var(--spacing-6);
      text-align: center;
      position: relative;
      transition: all 0.3s ease;
    }

    .comparison-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }

    .comparison-card.recommended {
      border-color: var(--color-green);
      background: rgba(16, 185, 129, 0.02);
      transform: scale(1.05);
    }

    .recommended-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--color-green);
      color: var(--color-white);
      padding: 0.25rem 1rem;
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
    }

    .comparison-provider {
      font-size: 0.875rem;
      color: var(--color-gray-600);
      margin-bottom: var(--spacing-4);
    }

    .comparison-cost {
      font-size: 2rem;
      font-weight: 700;
      color: var(--color-navy);
      margin-bottom: var(--spacing-2);
    }

    .comparison-timeline {
      font-size: 0.95rem;
      color: var(--color-gray-600);
      margin-bottom: var(--spacing-4);
    }

    .comparison-features {
      text-align: left;
      font-size: 0.85rem;
      color: var(--color-gray-600);
      margin-bottom: var(--spacing-6);
      list-style: none;
    }

    .comparison-features li {
      padding: var(--spacing-2) 0;
      border-bottom: 1px solid var(--color-gray-200);
    }

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

    .comparison-features li::before {
      content: "✓ ";
      color: var(--color-green);
      font-weight: 700;
      margin-right: 0.5rem;
    }

    .faq-section {
      margin-top: var(--spacing-12);
    }

    .faq-title {
      font-size: 2rem;
      color: var(--color-navy);
      margin-bottom: var(--spacing-8);
      text-align: center;
      font-weight: 700;
    }

    .faq-items {
      display: grid;
      gap: var(--spacing-6);
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--color-white);
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .faq-question {
      padding: var(--spacing-6);
      background: var(--color-light-gray);
      color: var(--color-navy);
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: all 0.3s ease;
    }

    .faq-question:hover {
      background: var(--color-gray-200);
    }

    .faq-toggle {
      font-size: 1.5rem;
      transition: transform 0.3s ease;
    }

    .faq-toggle.open {
      transform: rotate(180deg);
    }

    .faq-answer {
      padding: var(--spacing-6);
      color: var(--color-gray-600);
      display: none;
      line-height: 1.8;
    }

    .faq-answer.open {
      display: block;
      animation: slideDown 0.3s ease-out;
    }

    .cta-section {
      background: linear-gradient(135deg, var(--color-navy), var(--color-blue));
      color: var(--color-white);
      padding: var(--spacing-12);
      border-radius: var(--radius-xl);
      text-align: center;
      margin-top: var(--spacing-12);
      box-shadow: var(--shadow-lg);
    }

    .cta-section h2 {
      font-size: 1.75rem;
      margin-bottom: var(--spacing-4);
    }

    .cta-section p {
      font-size: 1.05rem;
      margin-bottom: var(--spacing-8);
      opacity: 0.95;
    }

    .cta-buttons {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: var(--spacing-4);
    }

    .cta-button {
      padding: var(--spacing-6) var(--spacing-8);
      background: var(--color-white);
      color: var(--color-navy);
      border: none;
      border-radius: var(--radius-lg);
      font-weight: 600;
      cursor: pointer;
      font-size: 0.95rem;
      transition: all 0.3s ease;
      text-transform: none;
      letter-spacing: normal;
    }

    .cta-button:hover {
      background: var(--color-green);
      color: var(--color-white);
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
    }

    .form-group {
      margin-bottom: var(--spacing-6);
    }

    .form-label {
      display: block;
      margin-bottom: var(--spacing-2);
      font-weight: 600;
      color: var(--color-navy);
    }

    .form-input {
      width: 100%;
      padding: var(--spacing-4);
      border: 2px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      font-size: 1rem;
      font-family: inherit;
      transition: all 0.3s ease;
    }

    .form-input:focus {
      outline: none;
      border-color: var(--color-blue);
      box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }

    .form-textarea {
      resize: vertical;
      min-height: 120px;
    }

    .modal {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.5);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1000;
      padding: var(--spacing-4);
      animation: fadeIn 0.3s ease-out;
    }

    .modal-content {
      background: var(--color-white);
      border-radius: var(--radius-xl);
      padding: var(--spacing-8);
      max-width: 500px;
      width: 100%;
      max-height: 90vh;
      overflow-y: auto;
      box-shadow: var(--shadow-lg);
      animation: slideUp 0.3s ease-out;
    }

    .modal-header {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--color-navy);
      margin-bottom: var(--spacing-6);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .modal-close {
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--color-gray-600);
      padding: 0;
      width: auto;
    }

    .modal-close:hover {
      color: var(--color-navy);
    }

    .success-message {
      background: rgba(16, 185, 129, 0.1);
      border-left: 4px solid var(--color-green);
      padding: var(--spacing-4) var(--spacing-6);
      border-radius: var(--radius-lg);
      color: var(--color-green);
      margin-bottom: var(--spacing-6);
    }

    @keyframes fadeIn {
      from {
        opacity: 0;
      }
      to {
        opacity: 1;
      }
    }

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

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

    @keyframes slideDown {
      from {
        opacity: 0;
        height: 0;
      }
      to {
        opacity: 1;
        height: auto;
      }
    }

    @media (max-width: 768px) {
      .header h1 {
        font-size: 1.75rem;
      }

      .step-indicator {
        overflow-x: auto;
        padding-bottom: var(--spacing-4);
      }

      .step-dot {
        width: 36px;
        height: 36px;
        font-size: 0.75rem;
      }

      .card-grid {
        grid-template-columns: 1fr;
      }

      .cost-range {
        grid-template-columns: 1fr;
      }

      .comparison-card.recommended {
        transform: scale(1);
      }

      .summary-bar {
        flex-direction: column;
        gap: var(--spacing-2);
        text-align: center;
      }

      .button-group {
        flex-direction: column;
      }

      .cta-buttons {
        grid-template-columns: 1fr;
      }
    }

    @media print {
      body {
        background: var(--color-white);
      }

      .summary-bar, .button-group, .modal {
        display: none;
      }

      .step-content {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--color-gray-200);
      }
    }