.tts-highlight {
    background-color: #ffeb3b;
    color: #000;
    transition: background-color 0.3s ease;
    padding: 0.5px 0.5px;
    border-radius: 4px;
}

.bd-placeholder-img {
    font-size: 1.125rem;
    text-anchor: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}

@media (min-width: 768px) {
    .bd-placeholder-img-lg {
        font-size: 3.5rem;
    }
}



/* ===== CHATBOT WIDGET ===== */
#chatbot-btn {
    position: fixed;
    bottom: 5rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: #FFC107;
    color: #20437B;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    cursor: pointer;
    z-index: 1050;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

    #chatbot-btn:hover,
    #chatbot-btn:focus {
        background-color: #e0a800;
        transform: scale(1.08);
        outline: 3px solid #fff;
        outline-offset: 2px;
    }

#chatbot-modal .modal-body {
    padding: 0;
    height: 70vh;
}

    #chatbot-modal .modal-body iframe {
        width: 100%;
        height: 100%;
        border: none;
    }

@media (max-width: 576px) {
    #chatbot-modal .modal-dialog {
        margin: 0.5rem;
    }

    #chatbot-modal .modal-body {
        height: 80vh;
    }
}