.gbb-chat-bubble {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 9999;
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
    overflow: hidden;
}

.gbb-chat-window {
    position: fixed;
    bottom: 90px;
    right: 25px;
    width: 340px;
    height: 460px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.25);
    overflow: hidden;
    z-index: 9998;
}

.gbb-chat-header-icon {
    float: right;
    margin: 12px;
}

.gbb-chat-messages {
    height: 360px;
    overflow-y: auto;
    padding: 12px;
    clear: both;
}

.gbb-chat-input {
    width: 100%;
    padding: 12px;
    border-top: 1px solid #eee;
    font-size: 15px;
}

.user-msg  { text-align: left;  background: #e3f2fd; margin: 8px 0; padding: 10px; border-radius: 12px 12px 0 12px; }
.bot-msg   { text-align: right; background: #f5f5f5; margin: 8px 0; padding: 10px; border-radius: 12px 12px 12px 0; }