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fadeSlideIn}.app-shell{width:100%;min-height:100vh;display:flex}.sidebar{background:var(--sidebar-bg);border-right:1px solid var(--border);z-index:200;flex-direction:column;width:240px;min-width:240px;display:flex;position:fixed;top:0;bottom:0;left:0;overflow:hidden}.sidebar-logo{border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:10px;padding:20px 16px 16px;display:flex}.sidebar-logo-icon{background:var(--accent);color:#fff;letter-spacing:-.02em;border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:.75rem;font-weight:800;display:flex;box-shadow:0 0 12px #5257ff66}.sidebar-logo-text{color:var(--text-strong);letter-spacing:-.02em;font-size:.875rem;font-weight:600}.sidebar-new-btn{background:var(--bg-hover);border:1px solid var(--border-strong);color:var(--text-strong);cursor:pointer;border-radius:8px;flex-shrink:0;align-items:center;gap:8px;margin:12px 10px 8px;padding:9px 14px;font-family:inherit;font-size:.8125rem;font-weight:500;transition:all .15s;display:flex}.sidebar-new-btn:hover:not(:disabled){background:var(--sidebar-btn-hover-bg);border-color:var(--border-strong);color:var(--text-strong)}.sidebar-new-btn-icon{background:var(--accent-soft);width:18px;height:18px;color:var(--accent);border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;line-height:1;display:flex}.sidebar-section-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);flex-shrink:0;padding:12px 16px 6px;font-size:.6875rem;font-weight:600}.sidebar-nav{flex:1;padding:0 6px;overflow-y:auto}.sidebar-nav-item{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;flex-direction:column;gap:2px;width:100%;margin-bottom:1px;padding:9px 10px;transition:background .12s;display:flex}.sidebar-nav-item:hover{background:var(--bg-hover)}.sidebar-nav-item--active{background:var(--accent-soft)}.sidebar-nav-item-title{color:var(--text-strong);white-space:nowrap;text-overflow:ellipsis;max-width:200px;font-size:.8125rem;font-weight:500;display:block;overflow:hidden}.sidebar-nav-item-meta{color:var(--text-muted);align-items:center;gap:6px;font-size:.6875rem;display:flex}.sidebar-nav-empty{color:var(--text-muted);text-align:center;padding:16px 10px;font-size:.8125rem}.sidebar-nav-loading{color:var(--text-muted);align-items:center;gap:8px;padding:12px 10px;font-size:.8125rem;display:flex}.sidebar-spinner{border:2px solid #ffffff14;border-top-color:var(--accent);border-radius:50%;flex-shrink:0;width:14px;height:14px;animation:.7s linear infinite spin}.sidebar-theme-row{flex-shrink:0;padding:8px 10px 4px}.sidebar-theme-toggle{width:100%;color:var(--text-muted);background:var(--bg-hover);border:1px solid var(--border);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:8px 10px;font-family:inherit;font-size:.8125rem;font-weight:500;transition:background .15s,border-color .15s,color .15s;display:flex}.sidebar-theme-toggle:hover{color:var(--text-strong);border-color:var(--border-strong)}.sidebar-footer{border-top:1px solid var(--border);flex-shrink:0;padding:12px 10px}.sidebar-user{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;padding:0 6px 8px;font-size:.75rem;display:block;overflow:hidden}.sidebar-logout-btn{width:100%;color:var(--text-muted);cursor:pointer;text-align:left;background:0 0;border:1px solid #0000;border-radius:7px;padding:8px 10px;font-family:inherit;font-size:.8125rem;transition:all .15s}.sidebar-logout-btn:hover{color:#f87171;background:#ef444414;border-color:#ef444433}.app-content{background:var(--bg);flex-direction:column;flex:1;min-height:100vh;margin-left:240px;display:flex;position:relative}.app-main{flex-direction:column;flex:1;display:flex}.app-error-banner{border-radius:var(--radius);color:#f87171;background:#ef444414;border:1px solid #ef444433;align-items:center;gap:10px;margin:16px 24px 0;padding:11px 16px;font-size:.875rem;display:flex}.app-error-banner:before{content:"⚠";flex-shrink:0}.app-error-banner span{flex:1}.app-error-retry{color:#f87171;cursor:pointer;background:#ef44441a;border:1px solid #ef444440;border-radius:6px;flex-shrink:0;padding:5px 12px;font-family:inherit;font-size:.8125rem;font-weight:600;transition:background .15s}.app-error-retry:hover:not(:disabled){background:#ef44442e}.app-error-retry:disabled{opacity:.4;cursor:not-allowed}.app-recovery{text-align:center;min-height:60vh;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:40px 24px;font-size:.9375rem;display:flex}.app-loading-layer{z-index:1000;background:var(--loading-overlay-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}