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var(--spacing-lg)}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.text-ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border-color);height:100vh;position:fixed;left:0;top:0;display:flex;flex-direction:column;z-index:100;transition:transform var(--transition-base)}@media (max-width: 1024px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}}.main-content{flex:1;margin-left:var(--sidebar-width);padding:var(--spacing-lg);min-height:100vh}@media (max-width: 1024px){.main-content{margin-left:0}}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(var(--card-min-width),1fr));gap:var(--spacing-md)}.fade-enter-active,.fade-leave-active{transition:opacity var(--transition-base)}.fade-enter-from,.fade-leave-to{opacity:0}.slide-enter-active,.slide-leave-active{transition:transform var(--transition-base),opacity var(--transition-base)}.slide-enter-from{transform:translateY(10px);opacity:0}.slide-leave-to{transform:translateY(-10px);opacity:0}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center}.modal-content{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);transition:all var(--transition-base);padding:var(--spacing-xl);max-width:500px;width:90%;max-height:90vh;overflow-y:auto}.modal-content::-webkit-scrollbar{width:6px;height:6px}.modal-content::-webkit-scrollbar-track{background:transparent}.modal-content::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.modal-content::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.tooltip{position:relative}.tooltip:after{content:attr(data-tooltip);position:absolute;bottom:100%;left:50%;transform:translate(-50%);padding:var(--spacing-xs) var(--spacing-sm);background:var(--bg-tertiary);color:var(--text-primary);font-size:var(--text-xs);border-radius:var(--radius-sm);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity var(--transition-fast);z-index:1000}.tooltip:hover:after{opacity:1}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-secondary) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;border-radius:var(--radius-sm)}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.empty-state{display:flex;align-items:center;justify-content:center;flex-direction:column;padding:var(--spacing-2xl);color:var(--text-muted)}.empty-state svg{width:64px;height:64px;margin-bottom:var(--spacing-md);opacity:.5}.empty-state p{font-size:var(--text-lg)}.site-footer{margin-top:auto;padding:var(--spacing-lg) var(--spacing-xl);border-top:1px solid var(--border-color);background:var(--bg-secondary)}.site-footer .footer-content{display:flex;align-items:center;justify-content:center;gap:var(--spacing-md);font-size:var(--text-sm);color:var(--text-muted);flex-wrap:wrap}.site-footer .footer-content a{color:var(--text-muted);text-decoration:none;transition:color var(--transition-fast)}.site-footer .footer-content a:hover{color:var(--primary)}