/* Button styles */
.rcb-button {
    background-color: #0073aa;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    font-size: 16px;
}
.rcb-button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

/* Popup styles */
.rcb-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.rcb-popup-content {
    background: white;
    padding: 20px;
    border-radius: 5px;
    text-align: center;
    position: relative;
    max-width: 400px;
    width: 90%;
}
.rcb-popup-close {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 20px;
    cursor: pointer;
}
.rcb-code {
    font-size: 18px;
    font-weight: bold;
    margin: 10px 0;
    cursor: pointer;
    background: #f0f0f0;
    padding: 10px;
    border-radius: 3px;
}
.rcb-register-button {
    display: inline-block;
    background-color: #28a745;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 3px;
    margin-top: 10px;
}
.rcb-register-button:hover {
    background-color: #218838;
}