.chat-buttons {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 15px;
    transition: all 0.3s ease;
}

.chat-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #fff;
    background-size: 60% 60%;
    background-repeat: no-repeat;
    background-position: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chat-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.chat-btn.telegram {
    background-image: url('https://cdn-icons-png.flaticon.com/512/2111/2111646.png');
    background-color: #0088cc;
}

.chat-btn.whatsapp {
    background-image: url('https://cdn-icons-png.flaticon.com/512/733/733585.png');
    background-color: #25D366;
}

@media screen and (max-width: 768px) {
    .chat-buttons {
        bottom: 15px;
        right: 15px;
        flex-direction: row;
        gap: 10px;
    }

    .chat-btn {
        width: 50px;
        height: 50px;
    }
}