.ftb-button {
    position: fixed;
    bottom: 30px;
    background: url('telegram-icon.png') no-repeat center center;
    background-size: cover;
    border-radius: 50%;
    cursor: pointer;
    z-index: 1000;
}

.ftb-button.left {
    left: 20px;
}

.ftb-button.right {
    right: 20px;
}

.ftb-button.bounce {
    animation: bounce 2s infinite;
}

.ftb-button.pulse {
    animation: pulse 2s infinite;
}

.ftb-button.shake {
    animation: shake 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-30px);
    }
    60% {
        transform: translateY(-15px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-10px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(10px);
    }
}