/* ============================================================
   WHATSAPP FLOATING ACTION BUTTON
   ============================================================ */
.whatsapp-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 50;
    width: 56px;
    height: 56px;
    border-radius: 6px;
    background: #25D366;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
}
.whatsapp-fab:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}
.whatsapp-fab:focus {
    outline: 2px solid #25D366;
    outline-offset: 2px;
}
.whatsapp-fab svg {
    flex-shrink: 0;
}
@media (max-width: 768px) {
    .whatsapp-fab {
        width: 48px;
        height: 48px;
        bottom: 16px;
        right: 16px;
    }
    .whatsapp-fab svg {
        width: 24px;
        height: 24px;
    }
}