#data-collection-modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.4);
}
.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 50%;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
}
.modal-buttons {
    text-align: right;
    margin-top: 20px;
}
.modal-buttons button {
    margin-left: 10px;
}

#auth-message {
    margin-top: 10px;
    padding: 10px;
    border-radius: 4px;
}

#auth-message.error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

#auth-message.success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

#user-auth-form {
    margin: 15px 0;
    max-width: 500px;
}

#user-auth-form input {
    padding: 5px 8px;
}

#user-auth-form select {
    margin-bottom: 10px;
}

#auth-message {
    margin-top: 10px;
    padding: 8px;
    border-radius: 4px;
}

.auth-fields {
    margin-bottom: 15px;
}