.sidebar-container{--sidebar-width:288px;--sidebar-collapsed-width:64px;--animation-duration:0.3s;--animation-easing:cubic-bezier(0.4,0,0.2,1);position:relative;width:var(--sidebar-width);transition:width var(--animation-duration) var(--animation-easing);will-change:width}.sidebar-container:has(.sidebar-toggle:checked){width:var(--sidebar-collapsed-width)}.sidebar-container .sidebar-label{opacity:1;transition:opacity calc(var(--animation-duration) * .5) var(--animation-easing);white-space:nowrap;overflow:hidden}.sidebar-container:has(.sidebar-toggle:checked) .sidebar-label{opacity:0;pointer-events:none}.sidebar-container .sidebar-icon{transition:transform var(--animation-duration) var(--animation-easing)}.sidebar-container:has(.sidebar-toggle:checked) .sidebar-icon{transform:scale(1.1)}.sidebar-container *{contain:layout style}.ticket-list-container{contain:layout style paint;will-change:scroll-position}.ticket-item{contain:layout style paint;transform:translateZ(0);backface-visibility:hidden}@media (prefers-reduced-motion:reduce){.sidebar-container,.sidebar-container *,.ticket-item{transition:none!important;animation:none!important}}.virtual-scroll-container{contain:strict;overflow-anchor:none}.virtual-scroll-item{contain-intrinsic-size:0 80px}.skeleton-loader{background:linear-gradient(90deg,hsl(var(--muted)) 25%,hsl(var(--muted)/.8) 50%,hsl(var(--muted)) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s ease-in-out infinite;will-change:background-position}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.status-indicator,.unread-badge{will-change:contents;contain:layout style paint}.filter-panel{transform:translateX(100%);transition:transform var(--animation-duration) var(--animation-easing);will-change:transform;contain:layout style paint}.filter-panel.open{transform:translateX(0)}.scrollable-content{-webkit-overflow-scrolling:touch;transform:translateZ(0);backface-visibility:hidden}.interactive-element{transition:background-color .15s ease-out}.interactive-element:hover{transition-duration:.05s}.dynamic-content-wrapper{min-height:0;contain:layout}.batch-update-container{content-visibility:auto;contain-intrinsic-size:0 500px}