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

  body {
      background-image: url("../images/background.jpg");
      background-repeat: no-repeat;
      background-position: center;
      background-size: cover;
      min-height: 100vh;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      display: flex;
      align-items: center;
      justify-content: center;
  }

  .container {
      max-width: 400px;
      width: 100%;
      padding: 20px;
  }

  .logo {
      text-align: center;
      margin-bottom: 50px;
  }

  .logo h1 {
      color: #f8f8f8;
      font-size: 2.5rem;
      font-weight: bold;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
  }

  .logo img {
      max-width: 80%;
      height: auto;
  }

  .main-card {
      background: linear-gradient(135deg, #0f0f0f 0%, #353636 100%);
      opacity: 0.90;
      border-radius: 15px;
      box-shadow: 0 20px 40px rgba(111, 66, 193, 0.2);
      padding: 30px;
      transform: translateY(-5px);
      transition: all 0.3s ease;
  }

  .main-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 25px 50px rgba(111, 66, 193, 0.25);
  }

  .main-card h3,
  p {
      text-align: center;
      color: #f8f8f8;
  }

  .social-login-btn {
      width: 100%;
      padding: 12px;
      background: #4267B2;
      color: white;
      border: none;
      border-radius: 8px;
      font-size: 16px;
      font-weight: 600;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
  }

  .social-login-btn:hover {
      background: #365899;
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(66, 103, 178, 0.3);
  }

  .instagram-login-btn {
      background: #E1306C;
  }

  .instagram-login-btn:hover {
      background: #C13584;
  }

  .form-control {
      border-radius: 8px;
      border: 2px solid #e9ecef;
      padding: 12px 15px;
      font-size: 16px;
      transition: all 0.3s ease;
  }

  .form-control:focus {
      border-color: #003865;
      box-shadow: 0 0 0 0.2rem rgba(111, 66, 193, 0.25);
  }

  .submit-btn {
      width: 100%;
      padding: 12px;
      background: #ffffff;
      color: #000000;
      border: none;
      border-radius: 8px;
      font-size: 16px;
      font-weight: 600;
      transition: all 0.3s ease;
  }

  .submit-btn:hover {
      background: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(111, 66, 193, 0.3);
  }

  .form-label {
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 8px;
  }

  .page {
      display: none;
  }

  .page.active {
      display: block;
  }

  .loading {
      display: none;
      text-align: center;
      color: #ffffff;
      margin-top: 20px;
  }

  .alert {
      border-radius: 8px;
      margin-bottom: 20px;
  }

  @media (max-width: 576px) {
      .container {
          padding: 15px;
      }

      .main-card {
          padding: 20px;
      }

      .logo h1 {
          font-size: 2rem;
      }
  }

  /* Image Preview Styles */
  .image-preview-container {
      margin-top: 15px;
      display: none;
  }

  .image-preview-wrapper {
      position: relative;
      border: 2px solid rgba(255, 255, 255, 0.3);
      border-radius: 12px;
      overflow: hidden;
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(10px);
  }

  .image-preview {
      width: 100%;
      height: auto;
      max-height: 300px;
      object-fit: contain;
      display: block;
      padding: 10px;
  }

  .image-remove-btn {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(220, 53, 69, 0.9);
      color: white;
      border: none;
      border-radius: 50%;
      width: 35px;
      height: 35px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  }

  .image-remove-btn:hover {
      background: rgba(220, 53, 69, 1);
      transform: scale(1.1);
  }

  .image-remove-btn i {
      font-size: 16px;
  }

  .image-info {
      padding: 10px 15px;
      background: rgba(255, 255, 255, 0.1);
      color: white;
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      align-items: center;
  }

  .image-info .file-name {
      font-weight: 500;
      max-width: 200px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
  }

  .image-info .file-size {
      color: rgba(255, 255, 255, 0.7);
      font-size: 12px;
  }

  /* File input label styling */
  .file-input-label {
      display: inline-block;
      padding: 10px 20px;
      background: rgba(255, 255, 255, 0.1);
      color: white;
      border: 2px dashed rgba(255, 255, 255, 0.3);
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.3s ease;
      text-align: center;
  }

  .file-input-label:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: rgba(255, 255, 255, 0.5);
  }

  .file-input-label i {
      margin-right: 8px;
  }

  #file {
      display: none;
  }

  .change-image-btn {
      display: none;
      margin-top: 10px;
      padding: 8px 16px;
      background: rgba(255, 255, 255, 0.1);
      color: white;
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.3s ease;
  }

  .change-image-btn:hover {
      background: rgba(255, 255, 255, 0.15);
  }

  .change-image-btn i {
      margin-right: 5px;
  }

  .form-text {
      text-align: justify !important;
  }