.preview-wrapper {
    width: 100%;   /* fixed preview box size */
    height: 300px;
    border: 1px solid #ccc;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #f8f8f8;
}

.preview-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain; /* scale proportionally, no distortion */
    display: none;
}

input[type=checkbox]{
    margin: -5px 0 0;
}

 .chat-container {
     max-height: 500px;
     overflow-y: auto;
     padding: 15px;
     background-color: #f9f9f9;
     border-radius: 10px;
 }

.chat-bubble {
    padding: 10px 15px;
    border-radius: 20px;
    margin: 10px 0;
    display: inline-block;
    max-width: 70%;
    word-wrap: break-word;
    font-size: 14px;
    line-height: 1.4;
}

.chat-left {
    background-color: #e8e8e8;
    color: #333;
    text-align: left;
    border-bottom-left-radius: 0;
}

.chat-right {
    background-color: #007bff;
    color: white;
    float: right;
    text-align: right;
    border-bottom-right-radius: 0;
}

.chat-meta {
    font-size: 11px;
    color: #000;
    margin-top: 3px;
}

.chat-input {
    margin-top: 20px;
}

.chat-input textarea {
    resize: none;
    width: 100%;
}

.clearfix {
    clear: both;
}