.growth-calculator {
      max-width: 800px;
      margin: 0 auto;
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      line-height: 1.6;
    }
    .gc-card {
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      padding: 24px;
      margin-bottom: 20px;
    }
    .gc-title {
      font-size: 24px;
      font-weight: bold;
      color: #1e3a8a;
      margin-bottom: 8px;
    }
    .gc-subtitle {
      color: #6b7280;
      margin-bottom: 16px;
    }
    .gc-alert {
      background: #dbeafe;
      border-left: 4px solid #3b82f6;
      padding: 12px;
      margin-bottom: 20px;
      border-radius: 4px;
    }
    .gc-alert-text {
      color: #1e40af;
      font-size: 14px;
      margin: 0;
    }
    .gc-form-group {
      margin-bottom: 16px;
    }
    .gc-label {
      display: block;
      font-weight: 500;
      margin-bottom: 6px;
      color: #374151;
    }
    .gc-required {
      color: #ef4444;
    }
    .gc-input {
      width: 100%;
      padding: 10px 12px;
      border: 1px solid #d1d5db;
      border-radius: 6px;
      font-size: 14px;
      box-sizing: border-box;
    }
    .gc-input:focus {
      outline: none;
      border-color: #3b82f6;
      box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }
    .gc-input.error {
      border-color: #ef4444;
    }
    .gc-error-text {
      color: #ef4444;
      font-size: 12px;
      margin-top: 4px;
    }
    .gc-success-text {
      color: #10b981;
      font-size: 12px;
      margin-top: 4px;
    }
    .gc-radio-group {
      display: flex;
      gap: 16px;
    }
    .gc-radio-label {
      display: flex;
      align-items: center;
      cursor: pointer;
    }
    .gc-radio-label input {
      margin-right: 6px;
    }
    .gc-button-group {
      display: flex;
      gap: 12px;
      margin-top: 20px;
    }
    .gc-button {
      flex: 1;
      padding: 12px 24px;
      border: none;
      border-radius: 6px;
      font-size: 16px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s;
    }
    .gc-button-primary {
      background: #2563eb;
      color: white;
    }
    .gc-button-primary:hover {
      background: #1d4ed8;
    }
    .gc-button-secondary {
      background: #e5e7eb;
      color: #374151;
    }
    .gc-button-secondary:hover {
      background: #d1d5db;
    }
    .gc-results {
      margin-top: 24px;
    }
    .gc-data-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 16px;
      background: #f9fafb;
      padding: 16px;
      border-radius: 6px;
      margin-bottom: 20px;
    }
    .gc-data-item p {
      margin: 0;
    }
    .gc-data-label {
      font-size: 12px;
      color: #6b7280;
      margin-bottom: 4px;
    }
    .gc-data-value {
      font-weight: 600;
      color: #111827;
    }
    .gc-table {
      width: 100%;
      border-collapse: collapse;
      margin-bottom: 20px;
      font-size: 14px;
    }
    .gc-table th {
      background: #dbeafe;
      border: 1px solid #93c5fd;
      padding: 10px;
      text-align: left;
      font-weight: 600;
    }
    .gc-table td {
      border: 1px solid #d1d5db;
      padding: 10px;
    }
    .gc-status-normal {
      background: #d1fae5;
      color: #065f46;
    }
    .gc-status-warning {
      background: #fed7aa;
      color: #92400e;
    }
    .gc-status-danger {
      background: #fee2e2;
      color: #991b1b;
    }
    .gc-guide {
      background: #f9fafb;
      padding: 16px;
      border-radius: 6px;
      margin-top: 20px;
    }
    .gc-guide h4 {
      margin-top: 0;
      color: #374151;
    }
    .gc-guide-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .gc-guide-list li {
      padding: 6px 0;
      font-size: 13px;
      color: #4b5563;
    }
    .gc-indicator {
      display: inline-block;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      margin-right: 8px;
    }
    .gc-conclusion {
      background: #dbeafe;
      border-left: 4px solid #3b82f6;
      padding: 16px;
      margin: 20px 0;
      border-radius: 4px;
    }
    .gc-conclusion h3 {
      margin-top: 0;
      color: #1e40af;
    }
    .gc-conclusion p {
      margin: 0;
      color: #1e40af;
    }
    .gc-footer {
      text-align: center;
      margin-top: 32px;
      padding-top: 20px;
      border-top: 1px solid #e5e7eb;
      color: #6b7280;
      font-size: 13px;
    }
    .gc-hidden {
      display: none;
    }
    @media (max-width: 640px) {
      .gc-button-group {
        flex-direction: column;
      }
      .gc-data-grid {
        grid-template-columns: 1fr;
      }
    }