/*
 * AMC Secure — Portal skeleton loaders & smart transitions (Phase 370+)
 */

.amc-skeleton {
    position: relative;
    overflow: hidden;
    background: linear-gradient(90deg, #e8eef5 0%, #f4f7fb 45%, #e8eef5 90%);
    background-size: 200% 100%;
    animation: amcSkeletonShimmer 1.2s ease-in-out infinite;
    border-radius: 10px;
}

.amc-skeleton--text {
    height: 14px;
    margin-bottom: 8px;
}

.amc-skeleton--title {
    height: 22px;
    width: 62%;
    margin-bottom: 10px;
}

.amc-skeleton--card {
    min-height: 120px;
}

.amc-skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

body.portal-nav-loading [data-portal-main] {
    opacity: 0.55;
    pointer-events: none;
    transition: opacity 0.18s ease;
}

body.portal-nav-loading [data-portal-main]::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.35);
    pointer-events: none;
}

@keyframes amcSkeletonShimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

@media (prefers-reduced-motion: reduce) {
    .amc-skeleton {
        animation: none;
    }
}