.app-shell-skeleton{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}.app-shell-skeleton__header{height:72px;flex-shrink:0;border-bottom:3px solid navy;background:linear-gradient(90deg,#f0f0f0,#e8e8e8 50%,#f0f0f0);background-size:200% 100%;animation:app-shell-shimmer 1.4s ease-in-out infinite}@media(max-width:767.98px){.app-shell-skeleton__header{position:-webkit-sticky;position:sticky;top:0;z-index:10;height:auto;min-height:calc(56px + env(safe-area-inset-top, 0px));padding-top:env(safe-area-inset-top,0)}}.app-shell-skeleton__main{flex:1 1;min-height:calc(100vh - 72px - 50px);min-height:calc(100dvh - 72px - 50px);background:#fafafa}@media(max-width:767.98px){.app-shell-skeleton__main{min-height:calc(100dvh - 56px - env(safe-area-inset-top, 0px) - 56px - env(safe-area-inset-bottom, 0px))}}.app-shell-skeleton__footer{height:50px;flex-shrink:0;border-top:4px solid #fc0;background:linear-gradient(90deg,#f0f0f0,#e8e8e8 50%,#f0f0f0);background-size:200% 100%;animation:app-shell-shimmer 1.4s ease-in-out infinite;padding-bottom:env(safe-area-inset-bottom,0)}@media(max-width:767.98px){.app-shell-skeleton__footer{height:auto;min-height:calc(56px + env(safe-area-inset-bottom, 0px));border-top:1px solid #e0e0e0}}@keyframes app-shell-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}