.text-warning {
    color: #c9a44b !important;
}
.btn-warning {
    background-color: #c9a44b;
    border: none;
}
.btn-warning:hover {
    background-color: #e0b85c;
    color: #000;
}
.form-control.bg-dark:focus {
    border-color: #c9a44b;
    box-shadow: 0 0 0 0.2rem rgba(201, 164, 75, 0.25);
}

/* swiper */
<style>
/* Contenedor general del Swiper */
.swiper-imagenes {
    width: 100%;
    padding: 5px 0;
}

/* Cada slide ocupa un tercio del ancho */
.swiper-slide {
    width: 33.333% !important;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Imágenes de miniatura */
.thumb-img {
    max-height: 150px;
    width: auto;
    object-fit: cover;
    transition: transform 0.3s ease, border-color 0.3s ease;
    cursor: pointer;
}

/* Overlay añadir producto */
#overlayCarrito {
    visibility: visible;
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

#overlayCarrito.inactive{
    visibility: hidden;
}

@keyframes moverCarrito {
    0% {
        transform: translateX(-200px);
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    80% {
        transform: translateX(200px);
        opacity: 1;
    }
    100% {
        transform: translateX(300px);
        opacity: 0;
    }
}

#overlayCarrito img.animando {
    animation: moverCarrito 1.5s ease-in-out infinite;
}