.floating-phone-btn {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 50px;
    padding: 15px 25px;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
    display: none; /* Hidden by default */
}

.floating-phone-btn.hidden {
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
}

/* Show only on mobile devices (max-width: 768px) */
@media (max-width: 768px) {
    .floating-phone-btn {
        display: block; /* Show on mobile */
    }
}