.whatsapp-btn {
    position: fixed;
    z-index: 9999;
    bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background-color: #25d366;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
    text-decoration: none;
}

.whatsapp-btn:active {
    transform: scale(0.95);
}

.whatsapp-bottom-right {
    right: 24px;
}

.whatsapp-bottom-left {
    left: 24px;
}

.whatsapp-btn svg {
    flex-shrink: 0;
}

.whatsapp-tooltip {
    position: absolute;
    white-space: nowrap;
    background-color: #fff;
    color: #333;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.whatsapp-bottom-right .whatsapp-tooltip {
    right: 68px;
    top: 50%;
    transform: translateY(-50%);
}

.whatsapp-bottom-left .whatsapp-tooltip {
    left: 68px;
    top: 50%;
    transform: translateY(-50%);
}

.whatsapp-btn:hover .whatsapp-tooltip {
    opacity: 1;
}

@media (max-width: 767px) {
    .whatsapp-btn {
        width: 48px;
        height: 48px;
        bottom: 16px;
    }

    .whatsapp-bottom-right {
        right: 16px;
    }

    .whatsapp-bottom-left {
        left: 16px;
    }

    .whatsapp-btn svg {
        width: 26px;
        height: 26px;
    }

    .whatsapp-tooltip {
        display: none;
    }
}