  /* Auth Container */
  .auth-wrapper {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 40px 20px;
  }

  .auth-container {
      background: white;
      border-radius: 20px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      width: 100%;
      max-width: 900px;
      display: flex;
      position: relative;
      min-height: 550px;
  }

  .form-container {
      flex: 1;
      padding: 50px 40px;
      transition: all 0.6s ease-in-out;
      background: white;
      overflow-y: auto;
      max-height: 600px;
  }

  .sign-up-container {
      position: absolute;
      top: 0;
      height: 100%;
      left: 0;
      width: 50%;
      opacity: 0;
      z-index: 1;
      transform: translateX(100%);
      transition: all 0.6s ease-in-out;
  }

  .auth-container.right-panel-active .sign-up-container {
      transform: translateX(100%);
      opacity: 1;
      z-index: 5;
  }

  .sign-in-container {
      position: absolute;
      left: 0;
      width: 50%;
      z-index: 2;
      height: 100%;
  }

  .auth-container.right-panel-active .sign-in-container {
      transform: translateX(100%);
      opacity: 0;
  }

  .auth-title {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #333;
  }

  .auth-subtitle {
      color: #666;
      font-size: 14px;
      margin-bottom: 30px;
  }

  .form-group {
      margin-bottom: 20px;
      position: relative;
  }

  .form-label {
      display: block;
      font-size: 13px;
      color: #666;
      margin-bottom: 8px;
      font-weight: 500;
  }

  .form-control {
      width: 100%;
      padding: 15px 20px;
      border: 2px solid #e8e8e8;
      border-radius: 10px;
      font-size: 14px;
      transition: all 0.3s;
      background: #f8f9fa;
  }

  .form-control:focus {
      outline: none;
      border-color: #667eea;
      background: white;
  }

  .form-select {
      width: 100%;
      padding: 15px 20px;
      border: 2px solid #e8e8e8;
      border-radius: 10px;
      font-size: 14px;
      transition: all 0.3s;
      background: #f8f9fa;
      cursor: pointer;
  }

  .form-select:focus {
      outline: none;
      border-color: #667eea;
      background: white;
  }

  .btn-auth {
      width: 100%;
      padding: 15px;
      border: none;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s;
      margin-top: 10px;
  }

  .btn-primary-auth {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
  }

  .btn-primary-auth:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
  }

  .btn-secondary-auth {
      background: #fff;
      border: 2px solid #667eea;
      color: #667eea;
  }

  .btn-secondary-auth:hover {
      background: #667eea;
      color: white;
  }

  .overlay-container {
      position: absolute;
      top: 0;
      left: 50%;
      width: 50%;
      height: 100%;
      overflow: hidden;
      transition: transform 0.6s ease-in-out;
      z-index: 100;
  }

  .auth-container.right-panel-active .overlay-container {
      transform: translateX(-100%);
  }

  .overlay {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      position: relative;
      left: -100%;
      height: 100%;
      width: 200%;
      transform: translateX(0);
      transition: transform 0.6s ease-in-out;
  }

  .auth-container.right-panel-active .overlay {
      transform: translateX(50%);
  }

  .overlay-panel {
      position: absolute;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      padding: 0 40px;
      text-align: center;
      top: 0;
      height: 100%;
      width: 50%;
      transform: translateX(0);
      transition: transform 0.6s ease-in-out;
  }

  .overlay-left {
      transform: translateX(-20%);
  }

  .auth-container.right-panel-active .overlay-left {
      transform: translateX(0);
  }

  .overlay-right {
      right: 0;
      transform: translateX(0);
  }

  .auth-container.right-panel-active .overlay-right {
      transform: translateX(20%);
  }

  .overlay-title {
      color: white;
      font-size: 32px;
      margin-bottom: 15px;
      font-weight: 700;
  }

  .overlay-text {
      font-size: 16px;
      line-height: 1.6;
      margin-bottom: 30px;
      opacity: 0.9;
  }

  .checkbox-group {
      display: flex;
      align-items: flex-start;
      margin-bottom: 20px;
  }

  .checkbox-group input[type="checkbox"] {
      width: auto;
      margin-right: 10px;
      margin-top: 3px;
      flex-shrink: 0;
  }

  .checkbox-group label {
      margin-bottom: 0;
      font-size: 13px;
  }

  .verification-code {
      display: flex;
      gap: 10px;
      margin-top: 10px;
      justify-content: center;
  }

  .verification-code input {
      width: 50px;
      height: 50px;
      text-align: center;
      font-size: 20px;
      font-weight: bold;
      border: 2px solid #e8e8e8;
      border-radius: 10px;
      background: #f8f9fa;
  }

  .verification-code input:focus {
      border-color: #667eea;
      background: white;
  }

  .code-timer {
      text-align: center;
      margin-top: 15px;
      color: #666;
      font-size: 14px;
  }

  .alert {
      padding: 12px 20px;
      border-radius: 8px;
      margin-bottom: 20px;
      font-size: 14px;
  }

  .alert-success {
      background: #d4edda;
      color: #155724;
      border: 1px solid #c3e6cb;
  }

  .alert-error {
      background: #f8d7da;
      color: #721c24;
      border: 1px solid #f5c6cb;
  }

  .mobile-switch {
      display: none;
  }

  /* Mobile Responsive */
  @media (max-width: 768px) {
      .auth-wrapper {
          padding: 20px 10px;
          min-height: 60vh;
      }

      .auth-container {
          flex-direction: column;
          max-width: 100%;
          min-height: auto;
          position: relative;
      }

      .form-container {
          width: 100% !important;
          padding: 40px 25px;
          position: relative !important;
          max-height: none;
          overflow-y: visible;
      }

      .sign-in-container,
      .sign-up-container {
          width: 100% !important;
          position: relative !important;
          transform: translateX(0) !important;
          opacity: 1 !important;
          height: auto !important;
      }

      .sign-up-container {
          display: none;
      }

      .auth-container.right-panel-active .sign-in-container {
          display: none;
      }

      .auth-container.right-panel-active .sign-up-container {
          display: block !important;
          opacity: 1 !important;
      }

      .overlay-container {
          position: relative;
          width: 100%;
          left: 0;
          height: auto;
          margin-top: 20px;
          border-radius: 15px;
          overflow: hidden;
          transform: none !important;
      }

      .overlay {
          position: relative;
          left: 0 !important;
          width: 100%;
          padding: 30px 20px;
          transform: none !important;
      }

      .overlay-panel {
          position: relative;
          width: 100%;
          padding: 0;
          transform: none !important;
      }

      .overlay-left,
      .overlay-right {
          display: none;
      }

      .auth-container.right-panel-active .overlay-left {
          display: flex;
      }

      .auth-container:not(.right-panel-active) .overlay-right {
          display: flex;
      }

      .auth-title {
          font-size: 24px;
      }

      .overlay-title {
          font-size: 26px;
      }

      .verification-code input {
          width: 40px;
          height: 40px;
          font-size: 18px;
      }

      /* Mobile için switch butonları */
      .mobile-switch {
          display: block;
          text-align: center;
          margin-top: 15px;
          color: #667eea;
          cursor: pointer;
          font-size: 14px;
          font-weight: 600;
      }
  }

  @media (max-width: 480px) {
      .form-container {
          padding: 30px 20px;
      }

      .auth-title {
          font-size: 22px;
      }

      .form-control,
      .form-select {
          padding: 12px 15px;
          font-size: 13px;
      }

      .btn-auth {
          padding: 12px;
          font-size: 14px;
      }

      .verification-code {
          gap: 6px;
      }

      .verification-code input {
          width: 35px;
          height: 35px;
          font-size: 16px;
      }
  }


  /* Checkbox ve Link Stilleri - GÜNCELLENMİŞ */
  .checkbox-group {
      display: flex;
      align-items: flex-start;
      margin-bottom: 20px;
      position: relative;
      padding: 10px 0;
  }

  .checkbox-group input[type="checkbox"] {
      width: 18px !important;
      height: 18px !important;
      margin-right: 10px;
      margin-top: 2px;
      flex-shrink: 0;
      cursor: pointer;
      opacity: 1 !important;
      visibility: visible !important;
      display: block !important;
      position: static !important;
      -webkit-appearance: checkbox !important;
      -moz-appearance: checkbox !important;
      appearance: checkbox !important;
  }

  .checkbox-group label {
      margin-bottom: 0;
      font-size: 13px;
      line-height: 1.4;
      cursor: pointer;
      display: flex;
      align-items: flex-start;
      width: 100%;
  }

  .checkbox-label-text {
      flex: 1;
      line-height: 1.4;
  }

  .checkbox-error {
      outline: 2px solid #dc3545 !important;
      outline-offset: 2px;
  }

  .error-message {
      color: #dc3545;
      font-size: 12px;
      margin-top: 5px;
      display: none;
      padding-left: 28px;
  }

  .checkbox-links {
      color: #667eea;
      text-decoration: underline;
      cursor: pointer;
      margin: 0 4px;
      font-weight: 500;
  }

  .checkbox-links:hover {
      color: #764ba2;
  }

  /* Checkbox container için ek stil */
  .checkbox-container {
      display: flex;
      align-items: flex-start;
      width: 100%;
      padding: 8px;
      border-radius: 8px;
      transition: background-color 0.3s;
  }

  .checkbox-container:hover {
      background-color: #f8f9fa;
  }

  /* Modal Stilleri */
  .modal {
      display: none;
      position: fixed;
      z-index: 1000;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.5);
  }

  .modal-content {
      background-color: white;
      margin: 5% auto;
      padding: 0;
      border-radius: 15px;
      width: 90%;
      max-width: 600px;
      max-height: 80vh;
      overflow: hidden;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  }

  .modal-header {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      padding: 20px 30px;
      position: relative;
  }

  .modal-header h2 {
      margin: 0;
      font-size: 20px;
      font-weight: 600;
  }

  .modal-close {
      position: absolute;
      right: 20px;
      top: 20px;
      color: white;
      font-size: 24px;
      cursor: pointer;
      background: none;
      border: none;
      width: 30px;
      height: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
  }

  .modal-body {
      padding: 30px;
      max-height: calc(80vh - 140px);
      overflow-y: auto;
  }

  .terms-content {
      line-height: 1.6;
      color: #555;
  }

  .terms-content h3 {
      color: #333;
      margin-top: 20px;
      margin-bottom: 10px;
      font-size: 16px;
  }

  .terms-content p {
      margin-bottom: 15px;
      font-size: 14px;
  }

  .terms-content ul {
      margin-bottom: 15px;
      padding-left: 20px;
  }

  .terms-content li {
      margin-bottom: 8px;
      font-size: 14px;
  }

  @media (max-width: 768px) {
      .modal-content {
          margin: 10% auto;
          width: 95%;
      }

      .modal-header {
          padding: 15px 20px;
      }

      .modal-body {
          padding: 20px;
      }
  }