.app-skeleton *{position:relative;overflow:hidden}.app-skeleton :before{content:"";background:linear-gradient(90deg,#0000,#fffc,#0000);width:100%;height:100%;animation:1.5s infinite shimmer;position:absolute;top:0;left:-100%}.skeleton-navbar{background:#ececec;height:80px}.skeleton-banner{background:#e5e5e5;height:400px}.skeleton-products{grid-template-columns:repeat(4,1fr);gap:20px;padding:20px;display:grid}.skeleton-card{background:#ededed;border-radius:20px;height:320px}@keyframes shimmer{to{left:100%}}