/* Floating WhatsApp chat button, bottom-right on every page. */
.whatsapp-button {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #25d366;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    transition: transform 0.2s ease;
}

.whatsapp-button:hover,
.whatsapp-button:focus-visible {
    transform: scale(1.08);
}

.whatsapp-button svg {
    width: 32px;
    height: 32px;
    fill: #fff;
}