/* Fondo oscuro */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1050;
}

/* Ventana flotante */
.popup-box {
    position: relative;
    background: #fff;
    border-radius: 12px;
    max-width: 800px;
    width: 100%;
    padding: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    animation: fadeIn 0.3s ease-in-out;
}

.popup-box img {
    width: 100%;
    border-radius: 10px;
    cursor: pointer;
}

/* Botón cerrar */
.btn-close-popup {
    position: absolute;
    top: 8px;
    right: 8px;
    background: #000;
    color: #fff;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    border: none;
    font-size: 16px;
    line-height: 28px;
    text-align: center;
    cursor: pointer;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}