body {
    background: linear-gradient(135deg, #4d80c9 40%, #87ceeb 70%, #f0f8ff 100%);
    background-attachment: fixed;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
  }
  
  .login-container {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .login-card {
    display: flex;
    max-width: 750px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    overflow: hidden;
  }
  
  .image-side {
    width: 350px;
    background-color: #1a3668;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
  }
  
  .image-container {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: white;
    padding: 10px;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .logo {
    max-width: 100px;
    max-height: 100px;
  }
  
  .side-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-align: center;
  }
  
  .side-subtitle {
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 20px;
  }
  
  .form-side {
    width: 400px;
    padding: 30px;
  }
  
  .card-title {
    color: #1a3668;
    font-weight: 600;
    text-align: center;
    margin-bottom: 25px;
  }
  
  .form-group label {
    color: #1a3668;
    font-weight: 500;
  }
  
  .form-control {
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px 15px;
    transition: all 0.3s;
  }
  
  .form-control:focus {
    border-color: #1a3668;
    box-shadow: 0 0 0 0.2rem rgba(26, 54, 104, 0.25);
  }
  
  .btn-primary {
    background-color: #1a3668;
    border-color: #1a3668;
    padding: 10px;
    font-weight: 500;
    transition: all 0.3s;
  }
  
  .btn-primary:hover, .btn-primary:focus {
    background-color: #15294d;
    border-color: #15294d;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  }
  
  .btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
    font-size: 0.8rem;
    transition: all 0.3s;
  }
  
  .btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-1px);
  }
  
  #message {
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 15px;
  }
  
  .footer-text {
    font-size: 0.8rem;
    text-align: center;
    color: #6c757d;
    margin-top: 15px;
  }
  
  @media (max-width: 768px) {
    .login-card {
      flex-direction: column;
      width: 90%;
      max-width: 400px;
    }
    
    .image-side {
      width: 100%;
      padding: 20px;
    }
    
    .form-side {
      width: 100%;
    }
  }