/* ============================================================
   FLOATING WHATSAPP BUTTON
   ============================================================ */

.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: var(--z-float);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
    opacity: 0;
    transform: translateY(20px) scale(0.9);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
    pointer-events: none;
}

.whatsapp-float.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* Tooltip */
.whatsapp-float__tooltip {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.4rem 0.875rem;
    border-radius: 100px;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(8px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
    pointer-events: none;
    box-shadow: var(--shadow-card);
}

.whatsapp-float:hover .whatsapp-float__tooltip {
    opacity: 1;
    transform: translateX(0);
}

/* Main button */
.whatsapp-float__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #25D366;
    color: var(--color-white);
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
}

.whatsapp-float__btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(37, 211, 102, 0.6);
    color: var(--color-white);
}

.whatsapp-float__btn svg {
    width: 32px;
    height: 32px;
}

/* Pulse ring animation */
@keyframes whatsapp-pulse {
    0%   { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(1.7); opacity: 0; }
}

.whatsapp-float__btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background-color: #25D366;
    animation: whatsapp-pulse 2s ease-out infinite;
    opacity: 0;
}

.whatsapp-float.pulse-active .whatsapp-float__btn::before {
    opacity: 0.7;
}

@media (max-width: 480px) {
    .whatsapp-float {
        bottom: 16px;
        right: 16px;
    }

    .whatsapp-float__btn {
        width: 52px;
        height: 52px;
    }

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