.welcome-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .welcome-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
  }

  .welcome-modal-content {
    position: relative;
    background: white;
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
  }

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

  .welcome-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 20px;
    color: #667085;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
  }

  .welcome-modal-close:hover {
    background: #F9FAFB;
    color: #344054;
  }

  .welcome-modal-header {
    padding: 40px 40px 24px;
    text-align: center;
    border-bottom: 1px solid #EAECF0;
  }

  .welcome-icon {
    font-size: 48px;
    margin-bottom: 16px;
  }

  .welcome-modal-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: #101828;
    margin: 0 0 8px 0;
  }

  .welcome-modal-header p {
    font-size: 14px;
    color: #667085;
    margin: 0;
  }

  .welcome-modal-body {
    padding: 32px 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .welcome-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
  }

  .step-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .step-icon i {
    font-size: 20px;
    color: white;
  }

  .step-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: #101828;
    margin: 0 0 4px 0;
  }

  .step-content p {
    font-size: 14px;
    color: #667085;
    margin: 0;
    line-height: 1.5;
  }

  .welcome-modal-footer {
    padding: 24px 40px 40px;
    border-top: 1px solid #EAECF0;
  }

  .btn-welcome-start {
    width: 100%;
    padding: 12px 24px;
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
  }

  .btn-welcome-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
  }

  /* 모바일 반응형 */
  @media (max-width: 768px) {
    .welcome-modal-header,
    .welcome-modal-body,
    .welcome-modal-footer {
      padding-left: 24px;
      padding-right: 24px;
    }

    .welcome-modal-header h2 {
      font-size: 20px;
    }

    .step-icon {
      width: 40px;
      height: 40px;
    }

    .step-icon i {
      font-size: 16px;
    }

    .step-content h3 {
      font-size: 14px;
    }

    .step-content p {
      font-size: 13px;
    }
  }