/* =================================================================
   BOTÓN FLOTANTE DE WHATSAPP - FUNDECIMA
   Contacto directo en la esquina inferior derecha
   - Círculo con anillo gradiente WhatsApp + borde blanco
   - Anillo de pulso animado
   - Punto de estado "en línea"
   - Tooltip profesional al hover
   - Responsive + soporte prefers-reduced-motion
   ================================================================= */

.whatsapp-float {
    /* Variables locales del componente */
    --wa-green: #25D366;
    --wa-green-dark: #128C7E;
    --wa-green-soft: rgba(37, 211, 102, 0.45);
    --wa-size: 62px;

    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9990; /* Debajo del loader (99999) y del modal de evento (100000) */
    width: var(--wa-size);
    height: var(--wa-size);
    border-radius: 50%;
    padding: 4px;
    background: linear-gradient(135deg, var(--wa-green) 0%, var(--wa-green-dark) 100%);
    border: 3px solid #ffffff;
    box-shadow:
        0 10px 28px rgba(18, 140, 126, 0.42),
        0 3px 10px rgba(0, 0, 0, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transform: none;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s ease;
    -webkit-tap-highlight-color: transparent;
}

/* =================================================================
   ICONO (imagen 1106x1086 - se adapta sola con object-fit)
   ================================================================= */
.whatsapp-icon {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: contain;   /* La imagen nunca se deforma ni se recorta */
    background: #ffffff;   /* Círculo blanco interior: realza el logo */
    display: block;
    position: relative;
    z-index: 2;
}

/* =================================================================
   ANILLO DE PULSO ANIMADO (invita al clic)
   ================================================================= */
.whatsapp-pulse {
    position: absolute;
    inset: -3px; /* Coincide con el borde para pulso perfectamente centrado */
    border-radius: 50%;
    background: var(--wa-green-soft);
    z-index: -1;
    pointer-events: none;
    animation: waPulseRing 2.4s ease-out infinite;
}

@keyframes waPulseRing {
    0%   { transform: scale(1);    opacity: 0.75; }
    70%  { transform: scale(1.55); opacity: 0; }
    100% { transform: scale(1.55); opacity: 0; }
}

/* =================================================================
   PUNTO DE ESTADO "EN LÍNEA"
   ================================================================= */
.whatsapp-status {
    position: absolute;
    bottom: 3px;
    right: 3px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #4ade80;
    border: 2.5px solid #ffffff;
    z-index: 3;
    animation: waStatusGlow 2s ease-in-out infinite;
}

@keyframes waStatusGlow {
    0%, 100% { box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25), 0 0 0 0 rgba(74, 222, 128, 0.5); }
    50%      { box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25), 0 0 0 5px rgba(74, 222, 128, 0); }
}

/* =================================================================
   TOOLTIP PROFESIONAL (aparece al hover / foco por teclado)
   ================================================================= */
.whatsapp-tooltip {
    position: absolute;
    right: calc(100% + 14px);
    top: 50%;
    transform: translateY(-50%) translateX(8px);
    background: #ffffff;
    color: #1e293b;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.18);
    white-space: nowrap;
    font-size: 0.82rem;
    line-height: 1.35;
    text-align: left;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

/* Flecha del tooltip apuntando al botón */
.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 7px solid transparent;
    border-left-color: #ffffff;
}

.whatsapp-tooltip strong {
    display: block;
    color: var(--wa-green-dark);
    font-size: 0.86rem;
    margin-bottom: 1px;
}

/* =================================================================
   ESTADOS INTERACTIVOS
   ================================================================= */
.whatsapp-float:hover,
.whatsapp-float:focus-visible {
    transform: scale(1.09);
    box-shadow:
        0 14px 36px rgba(18, 140, 126, 0.55),
        0 5px 14px rgba(0, 0, 0, 0.22);
    text-decoration: none;
}

.whatsapp-float:hover .whatsapp-tooltip,
.whatsapp-float:focus-visible .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

.whatsapp-float:active {
    transform: scale(0.95);
    transition-duration: 0.1s;
}

/* Anillo de accesibilidad por teclado */
.whatsapp-float:focus-visible {
    outline: 3px solid rgba(37, 211, 102, 0.55);
    outline-offset: 4px;
}

/* =================================================================
   RESPONSIVE
   ================================================================= */
@media (max-width: 768px) {
    .whatsapp-float {
        --wa-size: 56px;
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-status {
        width: 13px;
        height: 13px;
    }

    /* En pantallas táctiles no hay hover fiable: se oculta el tooltip */
    .whatsapp-tooltip {
        display: none;
    }
}

@media (hover: none) {
    .whatsapp-tooltip {
        display: none;
    }
}

@media (max-width: 576px) {
    .whatsapp-float {
        --wa-size: 52px;
        bottom: 16px;
        right: 16px;
        padding: 3px;
    }
}

/* =================================================================
   ACCESIBILIDAD: usuarios que prefieren menos movimiento
   ================================================================= */
@media (prefers-reduced-motion: reduce) {
    .whatsapp-float {
        transition: none;
    }

    .whatsapp-float:hover,
    .whatsapp-float:focus-visible {
        transform: none;
    }

    .whatsapp-pulse {
        animation: none;
        opacity: 0.3;
    }

    .whatsapp-status {
        animation: none;
    }
}