.floating-buy-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 80px;
    height: 80px;
    background: #135898;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(19, 88, 152, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
    animation: pulse 2s infinite;
}

.floating-buy-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(19, 88, 152, 0.4);
}

.floating-buy-button .buy-icon {
    width: 50px;
    height: 50px;
    filter: brightness(0) invert(1);
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 20px rgba(19, 88, 152, 0.3);
    }
    50% {
        box-shadow: 0 4px 20px rgba(19, 88, 152, 0.6);
    }
    100% {
        box-shadow: 0 4px 20px rgba(19, 88, 152, 0.3);
    }
}

@media (max-width: 768px) {
    .floating-buy-button {
        bottom: 20px;
        right: 20px;
        width: 70px;
        height: 70px;
    }
    
    .floating-buy-button .buy-icon {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .floating-buy-button {
        bottom: 15px;
        right: 15px;
        width: 60px;
        height: 60px;
    }
    
    .floating-buy-button .buy-icon {
        width: 35px;
        height: 35px;
    }
}