.swipe-hint-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    color: white;
    transition: opacity 0.5s;
}

.swipe-hint-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.swipe-hand {
    width: 50px;
    height: 50px;
    background: url('https://cdn-icons-png.flaticon.com/512/511/511445.png') no-repeat center;
    background-size: contain;
    animation: swipeMove 1.5s infinite ease-in-out;
}

@keyframes swipeMove {
    0% {
        transform: translateX(0);
        /* Centro */
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    30% {
        transform: translateX(-60px);
        /* Izquierda */
    }
    60% {
        transform: translateX(60px);
        /* Derecha */
    }
    90% {
        transform: translateX(0);
        /* Vuelve al centro */
        opacity: 1;
    }
    100% {
        opacity: 0;
        /* Desaparece para reiniciar el ciclo */
    }
}