.slide-in-popup {
    position: fixed;
    bottom: 0;
    left: -400px; /* Hidden off-screen initially */
    width : 100%;
    background-color: #fff;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
    transition: left 0.5s ease-in-out;
    z-index: 9999;
}

.popup-content {
    padding: 20px;
}

.close-popup {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 20px;
    cursor: pointer;
}

/* Button styles */
.open-popup-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #007bff;
    color: white;
    padding: 15px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

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