/*! Botón flotante WhatsApp — Grupo Musical La Célula
    Reemplaza al chatbot conversacional.
    Botón simple con animación pulse + tooltip hover "Atención personalizada". */

.celula-wa-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    font-family: 'Open Sans', sans-serif;
}

.celula-wa-button__link {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.25);
    text-decoration: none;
    transition: transform 0.3s ease, background-color 0.3s ease;
    animation: celula-wa-pulse 2.4s ease-out infinite;
}

/* Anillo de pulso expansivo */
.celula-wa-button__link::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background-color: #25D366;
    opacity: 0.6;
    z-index: -1;
    animation: celula-wa-pulse-ring 2.4s ease-out infinite;
    pointer-events: none;
}

.celula-wa-button__link:hover {
    background-color: #1ebe5a;
    transform: scale(1.08);
    animation: none; /* Pausa el pulse en hover para que el usuario pueda hacer click con precisión */
}

.celula-wa-button__link:hover::before {
    animation-play-state: paused;
}

.celula-wa-button__icon {
    width: 32px;
    height: 32px;
    filter: brightness(0) invert(1);
    pointer-events: none;
}

/* Tooltip "Atención personalizada" */
.celula-wa-button__tooltip {
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%) translateX(6px);
    background: #111827;
    color: #ffffff;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.celula-wa-button__tooltip::after {
    content: '';
    position: absolute;
    right: -7px;
    top: 50%;
    transform: translateY(-50%);
    border-width: 7px 0 7px 7px;
    border-style: solid;
    border-color: transparent transparent transparent #111827;
}

.celula-wa-button__link:hover .celula-wa-button__tooltip,
.celula-wa-button__link:focus-visible .celula-wa-button__tooltip {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.celula-wa-button__link:focus-visible {
    outline: 3px solid #FFE100;
    outline-offset: 3px;
}

/* Animaciones */
@keyframes celula-wa-pulse {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.04); }
    100% { transform: scale(1); }
}

@keyframes celula-wa-pulse-ring {
    0%   { transform: scale(1);    opacity: 0.55; }
    80%  { transform: scale(1.7);  opacity: 0; }
    100% { transform: scale(1.7);  opacity: 0; }
}

@media (max-width: 768px) {
    .celula-wa-button {
        bottom: 20px;
        right: 20px;
    }

    .celula-wa-button__link {
        width: 56px;
        height: 56px;
    }

    .celula-wa-button__icon {
        width: 28px;
        height: 28px;
    }

    .celula-wa-button__tooltip {
        display: none; /* En móvil el tooltip de hover no aplica */
    }
}