/* Loader overlay */
.loader-overlay {
    position: fixed;
    top:0;
    left:0;
    width: 100%;
    height: 100%;
    background-color: rgba(255,255,255,0.6);
    backdrop-filter: blur(6px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.4s ease;
}

/* Masquer loader en douceur */
.loader-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Spinner 3D animation */

/*.spinner-3d {
    border-width: 0.4rem;
    border-top-color: #0d6efd; *//* bleu bootstrap *//*
    animation: spin3d 1s linear infinite;
} */

@keyframes spin3d {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    50% { transform: rotateX(180deg) rotateY(180deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}