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12px;display:flex}.sidebar-logo{flex:1;align-items:center;gap:10px;min-width:0;text-decoration:none;display:flex}.sidebar-logo-icon{color:#fff;background:linear-gradient(135deg,#6366f1,#8b5cf6);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;padding:6px;display:flex}.sidebar-logo-text{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:16px;font-weight:700;overflow:hidden}.sidebar-toggle{width:28px;height:28px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:flex}.sidebar-toggle:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-mobile-toggle{z-index:200;border:1px solid var(--border-light);background:var(--bg-surface);width:40px;height:40px;color:var(--text-primary);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;transition:all .15s;display:none;position:fixed;top:12px;left:12px;box-shadow:0 2px 8px #00000014}.sidebar-mobile-toggle:hover{background:var(--bg-hover)}.sidebar-mobile-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.sidebar-backdrop{display:none}@media (max-width:768px){.sidebar-backdrop.show{z-index:90;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#00000059;display:block;position:fixed;top:0;right:0;bottom:0;left:0}}.sidebar-nav{flex-direction:column;flex:1;gap:16px;padding:12px 8px;display:flex;overflow-y:auto}.sidebar-nav-group{flex-direction:column;gap:2px;display:flex}.sidebar-nav-group-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;padding:4px 12px 6px;font-size:11px;font-weight:600}.sidebar-nav-item{color:var(--text-secondary);white-space:nowrap;border-radius:10px;align-items:center;gap:10px;padding:9px 12px;font-size:14px;font-weight:500;text-decoration:none;transition:all .15s;display:flex;position:relative;overflow:hidden}.sidebar-nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-nav-item.active{background:var(--accent-subtle);color:var(--accent);font-weight:600}.sidebar-nav-item-icon{color:currentColor;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;display:flex}.sidebar-nav-item-icon svg{width:18px;height:18px}.sidebar-nav-item-label{text-overflow:ellipsis;flex:1;overflow:hidden}.sidebar-nav-item-dot{background:var(--accent);border-radius:50%;flex-shrink:0;width:6px;height:6px}.sidebar-footer{border-top:1px solid var(--border-light);padding:12px}.sidebar-user{align-items:center;gap:10px;display:flex}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:600;display:block;overflow:hidden}.sidebar-user-level{color:var(--text-muted);font-size:11px;display:block}.sidebar-logout{width:32px;height:32px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:flex}.sidebar-logout:hover{background:var(--danger-subtle);color:var(--danger)}.navbar{display:none}.knowledge-hub{border-radius:var(--radius-lg);background:var(--bg-surface);border:1px solid var(--border-light);gap:0;height:calc(100vh - 112px);display:flex;overflow:hidden}.knowledge-hub-tree{border-right:1px solid var(--border-light);flex-direction:column;flex-shrink:0;width:280px;display:flex;overflow:hidden}.knowledge-hub-content{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.tree-node-row{cursor:pointer;color:var(--text-primary);-webkit-user-select:none;user-select:none;border-radius:8px;align-items:center;gap:6px;margin:1px 4px;padding:6px 10px;font-size:13px;transition:all .12s;display:flex}.tree-node-row:hover{background:var(--bg-hover)}.tree-node-row.selected{background:var(--accent-subtle);color:var(--accent);font-weight:600}.tree-node-row .tree-arrow{width:18px;height:18px;color:var(--text-muted);flex-shrink:0;justify-content:center;align-items:center;transition:transform .2s;display:flex}.tree-node-row .tree-arrow.expanded{transform:rotate(90deg)}.tree-node-row .tree-icon{flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:14px;display:flex}.tree-node-row .tree-icon.subject-icon{border-radius:6px;font-size:11px;font-weight:700}.tree-node-row .tree-label{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.tree-node-row .tree-count{background:var(--bg-subtle);color:var(--text-muted);border-radius:8px;flex-shrink:0;padding:1px 7px;font-size:11px}.tree-node-row.selected .tree-count{background:var(--accent);color:#fff}.hub-toolbar{border-bottom:1px solid var(--border-light);flex-wrap:wrap;align-items:center;gap:12px;padding:14px 20px;display:flex}.hub-tabs{gap:4px;display:flex}.hub-tab{border:1px solid var(--border-light);background:var(--bg-surface);color:var(--text-secondary);cursor:pointer;border-radius:8px;align-items:center;gap:6px;padding:7px 16px;font-family:inherit;font-size:13px;font-weight:500;transition:all .15s;display:flex}.hub-tab:hover{border-color:var(--border);color:var(--text-primary)}.hub-tab.active{border-color:var(--accent);background:var(--accent-subtle);color:var(--accent);font-weight:600}.hub-tab-count{background:var(--bg-subtle);color:var(--text-muted);border-radius:8px;padding:1px 7px;font-size:11px}.hub-tab.active .hub-tab-count{background:var(--accent);color:#fff}.hub-search{border:1px solid var(--border-light);min-width:160px;color:var(--text-primary);background:var(--bg-surface);border-radius:8px;outline:none;flex:1;padding:7px 12px;font-family:inherit;font-size:13px;transition:border-color .2s}.hub-search:focus{border-color:var(--accent);box-shadow:0 0 0 3px #6366f11a}.hub-search::placeholder{color:var(--text-muted)}.hub-total{color:var(--text-muted);white-space:nowrap;font-size:12px}.hub-table-wrap{flex:1;padding:0 20px;overflow:auto}.hub-table{border-collapse:collapse;width:100%;font-size:13px}.hub-table th{text-align:left;color:var(--text-secondary);border-bottom:2px solid var(--border-light);white-space:nowrap;-webkit-user-select:none;user-select:none;padding:10px 12px;font-size:12px;font-weight:500}.hub-table th.sortable{cursor:pointer}.hub-table th.sortable:hover{color:var(--accent)}.hub-table td{border-bottom:1px solid var(--border-light);vertical-align:middle;padding:9px 12px}.hub-table tr:hover td{background:var(--accent-subtle)}.hub-pagination{justify-content:center;align-items:center;gap:4px;padding:12px 20px 16px;display:flex}.quick-action-btn{border-radius:var(--radius-md);border:1.5px solid var(--border-light);background:var(--bg-surface);cursor:pointer;color:var(--text-primary);align-items:center;gap:10px;padding:14px 16px;font-family:inherit;font-size:14px;font-weight:500;transition:all .15s;display:flex}.quick-action-btn:hover{border-color:var(--accent);background:var(--accent-subtle)}.quick-action-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-color:var(--accent)}@media (max-width:768px){.app-sidebar{width:64px}.app-sidebar .sidebar-brand,.app-sidebar .sidebar-nav-group-label,.app-sidebar .sidebar-nav-item-label,.app-sidebar .sidebar-nav-item-dot,.app-sidebar .sidebar-footer{display:none}.app-sidebar .sidebar-nav{padding:12px 4px}.app-sidebar .sidebar-nav-item{justify-content:center;padding:9px}.app-main{margin-left:64px;padding:20px 16px 48px}.app-sidebar.expanded{width:240px;box-shadow:2px 0 16px #0000001f}.app-sidebar.expanded .sidebar-brand,.app-sidebar.expanded .sidebar-nav-group-label,.app-sidebar.expanded .sidebar-nav-item-label,.app-sidebar.expanded .sidebar-nav-item-dot,.app-sidebar.expanded .sidebar-footer{display:revert}.app-sidebar.expanded .sidebar-nav{padding:12px 8px}.app-sidebar.expanded .sidebar-nav-item{justify-content:flex-start;padding:9px 12px}.sidebar-mobile-toggle{display:flex}.knowledge-hub{flex-direction:column;height:auto}.knowledge-hub-tree{border-right:none;border-bottom:1px solid var(--border-light);width:100%;max-height:200px}.hub-toolbar{flex-direction:column;align-items:stretch}.hub-search{min-width:auto}}.layout-main{padding:0}.hub-loading,.hub-empty{color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:60px 20px;display:flex}.hub-empty-title{color:var(--text-primary);margin-bottom:4px;font-size:15px;font-weight:600}.hub-empty-desc{font-size:13px}.sidebar-nav-item{transition:all .15s}.sidebar-nav-item:hover .sidebar-nav-item-icon{transform:scale(1.05)}.sidebar-nav-item.active .sidebar-nav-item-icon{filter:drop-shadow(0 0 4px #6366f14d)}.print-only-title{display:none}@media print{.app-sidebar,.sidebar-mobile-toggle,.sidebar-backdrop{display:none!important}.app-main{margin-left:0!important;padding:0!important}.no-print{display:none!important}.print-only-title{border-bottom:2px solid #333;margin-bottom:16px;padding-bottom:10px;display:block!important}.print-only-title h1{margin:0 0 4px;font-size:20px;font-weight:700}.print-only-title p{color:#555;margin:0;font-size:12px}.weekly-plan-grid{grid-template-columns:1fr!important;gap:8px!important}.weekly-plan-day{break-inside:avoid;box-shadow:none!important;border:1px solid #ccc!important}.card{break-inside:avoid;box-shadow:none!important}body,.app-layout,.app-main{background:#fff!important}.skeleton{display:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}