.wpgt-container {
    background: #fff;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    max-width: 800px;
    border-radius: 6px;
    margin-top: 15px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}
.wpgt-form-group {
    margin-bottom: 20px;
}
.wpgt-form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}
.wpgt-checkboxes label {
    font-weight: normal;
    display: inline-block;
    margin-right: 20px;
    margin-bottom: 10px;
}
.wpgt-form-group input[type="radio"] {
    margin-right: 8px;
}
.wpgt-form-group input[type="radio"] + label {
    font-weight: normal;
    display: inline-block;
    margin-bottom: 5px;
}
.wpgt-form-group select, 
.wpgt-form-group input[type="file"] {
    width: 100%;
    max-width: 400px;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
#wpgt-status {
    padding: 10px;
    border-radius: 4px;
    display: none;
    margin-top: 15px;
}
#wpgt-status.loading {
    display: block;
    background: #eef;
    color: #005;
    border-left: 4px solid #00a;
}
#wpgt-status.success {
    display: block;
    background: #efe;
    color: #050;
    border-left: 4px solid #0a0;
}
#wpgt-status.error {
    display: block;
    background: #fee;
    color: #500;
    border-left: 4px solid #a00;
}