body {
    font-family: 'Roboto', sans-serif;
}

.container {
    padding-top: 50px;
}

.card {
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: #ffffff;
}

.card-header {
    border-radius: 10px 10px 0 0;
    background-color: #007bff;
    color: #ffffff;
    font-weight: bold;
}

.btn-primary {
    background-color: #007bff;
    border: none;
}

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

.input-group-text {
    cursor: pointer;
}

.invalid-feedback {
    display: block;
}