/* Shared floating action buttons (WhatsApp left, FAQ right) */
:root {
    --fab-size: 56px;
    --fab-icon-size: 24px;
    --fab-bottom: 24px;
    --fab-side: 24px;
}

.wa-support-fab {
    position: fixed;
    z-index: 10050;
    width: var(--fab-size);
    height: var(--fab-size);
    min-width: var(--fab-size);
    min-height: var(--fab-size);
    border-radius: 50%;
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.wa-support-fab {
    bottom: var(--fab-bottom);
    left: var(--fab-side);
    background: #25d366;
    color: #fff;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.45), 0 2px 6px rgba(0, 0, 0, 0.12);
}

.wa-support-fab:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 6px 18px rgba(37, 211, 102, 0.5), 0 3px 8px rgba(0, 0, 0, 0.14);
    color: #fff;
}

.wa-support-fab:focus-visible {
    outline: 2px solid #128c7e;
    outline-offset: 3px;
}

.wa-support-fab-icon {
    display: block;
    width: var(--fab-icon-size);
    height: var(--fab-icon-size);
    margin: 0;
    flex-shrink: 0;
    pointer-events: none;
}

.wa-support-fab-icon {
    /* Optical center for WhatsApp glyph */
    transform: translate(0.5px, 0.5px);
}

/* Hair assessment: only show on welcome / Start Assessment step */
body.hide-public-chat-fabs .wa-support-fab,
body.hide-public-chat-fabs .faq-widget {
    display: none !important;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
}

@media (max-width: 767px) {
    :root {
        --fab-size: 48px;
        --fab-icon-size: 22px;
        --fab-bottom: max(10px, env(safe-area-inset-bottom, 0px));
        --fab-side: max(12px, env(safe-area-inset-left, 0px));
        --fab-side-right: max(12px, env(safe-area-inset-right, 0px));
        --fab-dock-height: calc(var(--fab-size) + var(--fab-bottom) + 12px);
    }

    .wa-support-fab {
        z-index: 10060;
        left: var(--fab-side);
        right: auto;
    }

    .wa-support-fab-icon {
        width: var(--fab-icon-size);
        height: var(--fab-icon-size);
    }

    /* Reserve space at bottom for FAB dock (hair analysis mobile wizard) */
    #mobileWizard {
        padding-bottom: var(--fab-dock-height);
    }

    .mw-footer-brand {
        padding: 8px 20px 4px;
        margin-bottom: 0;
        font-size: 11px;
        line-height: 1.35;
    }
}