.container-fluid {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
 }
  
.card {
    width: 400px;
    border-radius: 10px;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
  }

.alert {
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
}
  
.form-control {
    border-radius: 5px;
    padding: 10px;
}
  
.btn {
    border-radius: 5px;
    padding: 10px 20px;
    margin-top: 20px;
}

.card-body {
    margin: 20px;
}
  
.form-group {
    margin-bottom: 20px;
}
  
.form-check {
    margin-bottom: 20px;
}