/* Nút Upload Ảnh (Icon Camera/Ghim) */
.bce-upload-btn {
    background: transparent;
    border: none;
    color: #0084ff;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: transform 0.2s;
    margin-right: 5px;
}

.bce-upload-btn:hover {
    transform: scale(1.1);
    background: rgba(0, 132, 255, 0.1);
    border-radius: 50%;
}

/* Hiển thị ảnh trong bong bóng chat */
.bce-chat-img {
    max-width: 200px;
    max-height: 200px;
    border-radius: 8px;
    cursor: pointer;
    display: block;
    margin-top: 5px;
    transition: opacity 0.2s;
}

.bce-chat-img:hover {
    opacity: 0.9;
}

/* Modal xem ảnh full (Zoom) */
.bce-img-modal {
    display: none;
    position: fixed;
    z-index: 99999;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.9);
}
.bce-img-modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90vh;
}
.bce-img-close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}