/* ========================================
   WhatsApp Flutuante — Frontend
   Animações suaves: pulso + brilho
   ======================================== */

.wf-float-btn {
    position: fixed;
    bottom: 24px;
    z-index: 99999;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35),
                0 0 0 0 rgba(37, 211, 102, 0.5);
    text-decoration: none;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s ease;
    cursor: pointer;
    animation: wf-pulse-glow 3s ease-in-out infinite;
}

.wf-float-btn.wf-right { right: 24px; }
.wf-float-btn.wf-left  { left: 24px; }

.wf-float-btn svg {
    width: 32px;
    height: 32px;
    fill: #ffffff;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.15));
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Hover: aumenta suavemente + eleva */
.wf-float-btn:hover {
    transform: scale(1.15) translateY(-4px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5),
                0 0 0 8px rgba(37, 211, 102, 0.1);
    animation-play-state: paused;
}

.wf-float-btn:hover svg {
    transform: scale(1.1);
}

/* ========================================
   Tooltip adaptável (não sai da tela)
   ======================================== */
.wf-tooltip {
    position: absolute;
    bottom: 72px;
    background: #1f2937;
    color: #fff;
    font-size: 13px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 10px;
    max-width: 220px;
    line-height: 1.4;
    text-align: center;
    white-space: normal;
    word-wrap: break-word;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

/* Tooltip quando botão está à DIREITA: alinha à direita */
.wf-float-btn.wf-right .wf-tooltip {
    right: 0;
    transform: translateY(6px);
}

.wf-float-btn.wf-right:hover .wf-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* Tooltip quando botão está à ESQUERDA: alinha à esquerda */
.wf-float-btn.wf-left .wf-tooltip {
    left: 0;
    transform: translateY(6px);
}

.wf-float-btn.wf-left:hover .wf-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* Setinha do tooltip */
.wf-tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-top-color: #1f2937;
}

.wf-float-btn.wf-right .wf-tooltip::after {
    right: 18px;
}

.wf-float-btn.wf-left .wf-tooltip::after {
    left: 18px;
}

/* ========================================
   Animação: pulso suave + brilho
   ======================================== */
@keyframes wf-pulse-glow {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35),
                    0 0 0 0 rgba(37, 211, 102, 0.4);
    }
    50% {
        transform: scale(1.08);
        box-shadow: 0 6px 25px rgba(37, 211, 102, 0.45),
                    0 0 0 12px rgba(37, 211, 102, 0);
    }
}

/* ========================================
   Responsivo
   ======================================== */
@media (max-width: 768px) {
    .wf-float-btn {
        width: 54px;
        height: 54px;
        bottom: 16px;
    }
    .wf-float-btn.wf-right { right: 16px; }
    .wf-float-btn.wf-left  { left: 16px; }
    .wf-float-btn svg {
        width: 28px;
        height: 28px;
    }
    .wf-tooltip {
        font-size: 12px;
        padding: 6px 10px;
        max-width: 180px;
    }
}