.cruise-booking-modal {
    position: fixed; z-index: 9999; top: 0; left: 0;
    width: 100%; height: 100%; background: rgba(0,0,0,0.6);
    display: flex; justify-content: center; align-items: center;
}

.modal-content {
    background: #fff; padding: 30px; border-radius: 8px;
    width: 100%; max-width: 500px; position: relative;
}

.modal-content h3 {
    margin-top: 0;
}

.modal-content .close-btn {
    position: absolute; top: 10px; right: 15px; font-size: 22px;
    cursor: pointer;
}