.card {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-body {
    width: 400px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    background-color: #fff;
}

.card-title {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.form-group img {
    display: block;
    margin: 10px 0;
}

.btn {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 4px;
    background-color: #007bff;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0056b3;
}

.mt-3 {
    margin-top: 15px;
    text-align: center;
}

.mt-3 a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s;
}

.mt-3 a:hover {
    color: #0056b3;
}

.invalid-feedback {
    color: red;
    font-size: 0.875rem;
}