/* ================================================================
   Saberes WhatsApp Widget — Design Flutuante Responsivo
   Fonte: Font Awesome (ícones) + Montserrat (tipografia)
   ================================================================ */

:root {
    --whatsapp-green: #25D366;
    --whatsapp-green-dark: #1BAD56;
    --whatsapp-shadow: 0 8px 28px rgba(37, 211, 102, 0.25);
}

/* ── Wrapper fixo ── */
.sab-whatsapp-widget {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    font-family: 'Montserrat', 'Century Gothic', sans-serif;
}

/* ── Botão WhatsApp ── */
.sab-whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--whatsapp-green);
    color: #ffffff;
    text-decoration: none;
    box-shadow: var(--whatsapp-shadow);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: whatsapp-pulse 2.5s ease-in-out infinite;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
}

.sab-whatsapp-btn i {
    font-size: 1.75rem;
    transition: transform 0.3s ease;
}

.sab-whatsapp-btn:hover {
    background: var(--whatsapp-green-dark);
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.4);
}

.sab-whatsapp-btn:hover i {
    transform: scale(1.15);
}

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

/* ── Tooltip ── */
.sab-whatsapp-tooltip {
    position: absolute;
    right: 100%;
    margin-right: 0.75rem;
    background: #1a1a1a;
    color: #ffffff;
    padding: 0.5rem 0.875rem;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sab-whatsapp-tooltip::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-left-color: #1a1a1a;
}

.sab-whatsapp-btn:hover .sab-whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

/* ── Animação de Pulso ── */
@keyframes whatsapp-pulse {
    0% {
        box-shadow: var(--whatsapp-shadow), 0 0 0 0 rgba(37, 211, 102, 0.4);
    }
    60% {
        box-shadow: var(--whatsapp-shadow), 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: var(--whatsapp-shadow), 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* ── Responsividade Mobile ── */
@media (max-width: 768px) {
    .sab-whatsapp-widget {
        right: 1rem;
        bottom: 1rem;
    }

    .sab-whatsapp-btn {
        width: 56px;
        height: 56px;
    }

    .sab-whatsapp-btn i {
        font-size: 1.5rem;
    }

    /* Esconder tooltip em mobile */
    .sab-whatsapp-tooltip {
        display: none;
    }
}

/* ── Responsividade Extra Small ── */
@media (max-width: 480px) {
    .sab-whatsapp-widget {
        right: 0.875rem;
        bottom: 0.875rem;
    }

    .sab-whatsapp-btn {
        width: 52px;
        height: 52px;
    }

    .sab-whatsapp-btn i {
        font-size: 1.375rem;
    }
}

/* ── Acessibilidade: Modo Contraste Alto ── */
@media (prefers-contrast: more) {
    .sab-whatsapp-btn {
        border: 2px solid rgba(255, 255, 255, 0.8);
    }

    .sab-whatsapp-tooltip {
        border: 1px solid #ffffff;
    }
}

/* ── Acessibilidade: Respeitar Preferência de Movimento ── */
@media (prefers-reduced-motion: reduce) {
    .sab-whatsapp-btn {
        animation: none;
    }

    .sab-whatsapp-btn:hover,
    .sab-whatsapp-btn:active {
        transform: none;
    }

    .sab-whatsapp-btn i {
        transition: none;
    }

    .sab-whatsapp-tooltip {
        transition: none;
    }
}