/* Afegir al final de styles.css */

/* Animacions per skeleton */
@keyframes skeleton-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Grid skeleton */
.skeleton-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 30px;
    opacity: 0.7;
}

.skeleton-grid-item {
    animation: skeleton-fade-in 0.3s ease forwards;
    opacity: 0;
}

/* Estats de les imatges */
.card-image-container.skeleton {
    background-color: var(--skeleton-base) !important;
    position: relative;
    overflow: hidden;
}

.card-image-container.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--skeleton-gradient);
    background-size: 200% 100%;
    animation: skeleton-loading 1.7s infinite linear;
}

.card-image-container.loaded {
    background: transparent !important;
}

.card-image-container.loaded::after {
    display: none;
}

/* Millores d'animació */
.card {
    animation: skeleton-fade-in 0.4s cubic-bezier(0.23, 1, 0.32, 1) forwards;
    opacity: 0;
}

.card:nth-child(n) {
    animation-delay: calc(var(--index, 0) * 0.05s);
}

/* Optimització per moltes cards */
.grid {
    will-change: transform;
    contain: layout style paint;
}

/* Ajustos per skeleton a mode light */
.card-image-container.skeleton {
    --skeleton-base: #e5e5ea;
    --skeleton-highlight: #f2f2f7;
    --skeleton-gradient: linear-gradient(
        90deg,
        var(--skeleton-base) 25%,
        var(--skeleton-highlight) 50%,
        var(--skeleton-base) 75%
    );
}

/* Transició suau per imatges carregades */
.card-image-container img {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.card-image-container.loaded img {
    opacity: 1;
}

/* Millores per dispositius mòbils */
@media (max-width: 768px) {
    .skeleton-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .card-image-container.skeleton::after {
        animation-duration: 2s;
    }
    
    .card {
        animation-duration: 0.3s;
    }
}