/* ==========================================================================
   BOTÓN FLOTANTE DE WHATSAPP (Optimizado para Rendimiento y Mobile-First)
   ========================================================================== */

:root {
    --wa-green: #25D366;
    --wa-green-hover: #128C7E;
    --wa-text-dark: #333333;
}

.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 20px;
    right: 20px;
    background-color: var(--wa-green);
    color: #FFF !important;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none !important;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.3s ease;
    cursor: pointer;
    /* Optimización de renderizado en móviles */
    -webkit-tap-highlight-color: transparent;
    will-change: transform;
}

.whatsapp-float:hover {
    background-color: var(--wa-green-hover);
    transform: scale(1.1);
}

.whatsapp-icon {
    margin-top: 0;
}

/* Globo de texto (Tooltip) interactivo */
.whatsapp-tooltip {
    position: absolute;
    right: 75px;
    background-color: #FFFFFF;
    color: var(--wa-text-dark);
    font-family: 'Montserrat', sans-serif;
    font-size: 13px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease;
    transform: translateX(10px);
    pointer-events: none;
}

/* Indicador de flecha para el globo */
.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border-width: 6px 0 6px 6px;
    border-style: solid;
    border-color: transparent transparent transparent #FFFFFF;
}

/* Mostrar tooltip al pasar el cursor (sólo en desktop) */
@media (min-width: 992px) {
    .whatsapp-float:hover .whatsapp-tooltip {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }
}

/* Animación de entrada sutil para llamar la atención sin penalizar CLS */
@keyframes pulse-wa {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.whatsapp-float {
    animation: pulse-wa 2s infinite;
}