#myblue-chat-bubble {
    position: fixed;
    bottom: 112px;
    right: 40px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #1a73e8;
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: transform 0.2s, background 0.2s;
}
#myblue-chat-bubble:hover {
    transform: scale(1.08);
    background: #1557b0;
}
#myblue-chat-bubble.myblue-bubble-active {
    background: #c62828;
}
#myblue-chat-bubble.myblue-bubble-active .fa-robot { display: none; }
#myblue-chat-bubble.myblue-bubble-active::after {
    content: '\f00d';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
}

#myblue-chat-container {
    display: none;
    position: fixed;
    bottom: 180px;
    right: 40px;
    width: 400px;
    height: 600px;
    max-height: calc(100vh - 120px);
    z-index: 10000;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    overflow: hidden;
}

@media (max-width: 480px) {
    #myblue-chat-container {
        width: calc(100vw - 16px);
        height: calc(100vh - 100px);
        right: 8px;
        bottom: 80px;
    }
    #myblue-chat-bubble {
        bottom: 16px;
        right: 16px;
    }
}