.app-shell{background:linear-gradient(160deg,#fff5f5 0%,#f3f4f6 45%,#eceff1 100%);align-items:stretch;min-height:calc(100vh - 72px);display:flex}.app-shell-main{flex:1;min-width:0}.app-sidebar{background:#fff;border-right:1px solid #e0e0e0;flex-shrink:0;width:248px;transition:width .2s;overflow:hidden auto;box-shadow:2px 0 12px #0000000a}.app-sidebar:not(.app-sidebar-ready){transition:none}.app-sidebar-collapsed{width:72px}.app-sidebar-toolbar{border-bottom:1px solid #f0f0f0;padding:10px 10px 4px}.app-sidebar-toggle{color:#555;cursor:pointer;background:#fafafa;border:1px solid #e0e0e0;border-radius:8px;align-items:center;gap:8px;width:100%;padding:8px 10px;font-size:13px;font-weight:600;transition:background-color .15s,border-color .15s,color .15s;display:flex}.app-sidebar-toggle:hover{color:#b71c1c;background:#fff5f5;border-color:#ef9a9a}.app-sidebar-toggle-icon{text-align:center;flex-shrink:0;width:20px;font-size:18px;line-height:1}.app-sidebar-collapsed .app-sidebar-toggle{justify-content:center;padding:8px}.app-sidebar-collapsed .app-sidebar-toggle-label{display:none}.app-sidebar-nav{padding:8px 0 24px}.app-sidebar-section+.app-sidebar-section{border-top:1px solid #f0f0f0;margin-top:8px;padding-top:8px}.app-sidebar-section-title{letter-spacing:.06em;color:#888;text-transform:none;white-space:nowrap;margin:0;padding:8px 16px 6px;font-size:11px;font-weight:700;overflow:hidden}.app-sidebar-list{margin:0;padding:0;list-style:none}.app-sidebar-link{color:#333;border-left:3px solid #0000;align-items:center;gap:10px;padding:10px 14px 10px 16px;font-size:14px;font-weight:600;line-height:1.35;text-decoration:none;transition:background-color .15s,border-color .15s,color .15s;display:flex}.app-sidebar-link:hover{color:#b71c1c;background-color:#fff5f5}.app-sidebar-link-active{color:#b71c1c;background-color:#ffebee;border-left-color:#d32f2f}.app-sidebar-link-primary.app-sidebar-link-active{color:#e65100;background-color:#fff3e0;border-left-color:#ef6c00}.app-sidebar-link-primary:hover{color:#e65100}.app-sidebar-link-home .app-sidebar-link-icon{font-size:22px;line-height:1}.app-sidebar-link-icon{flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.app-sidebar-link-icon img{object-fit:contain;width:28px;height:28px;display:block}.app-sidebar-link-label{white-space:nowrap;text-overflow:ellipsis;min-width:0;overflow:hidden}.app-sidebar-collapsed .app-sidebar-section-title,.app-sidebar-collapsed .app-sidebar-link-label{display:none}.app-sidebar-collapsed .app-sidebar-link{border-bottom:3px solid #0000;border-left:none;justify-content:center;padding:12px 8px}.app-sidebar-collapsed .app-sidebar-link-active{border-bottom-color:#d32f2f;border-left:none}.app-sidebar-collapsed .app-sidebar-link-primary.app-sidebar-link-active{border-bottom-color:#ef6c00}.app-home-welcome{padding:32px 24px}.app-home-welcome-title{color:#333;margin:0 0 12px;font-size:24px;font-weight:700}.app-home-welcome-text{color:#666;margin:0;font-size:15px;line-height:1.6}@media (max-width:900px){.app-sidebar:not(.app-sidebar-collapsed){width:220px}}