.chat-sidebar{background:var(--surface-1);border-right:1px solid color-mix(in srgb,var(--border)50%,transparent 50%);flex-direction:column;width:272px;min-width:272px;max-width:272px;height:100%;transition:width .22s cubic-bezier(.16,1,.3,1),min-width .22s cubic-bezier(.16,1,.3,1),background .2s;display:flex;overflow:hidden}.chat-sidebar-collapsed{background:var(--surface-1);border-right:1px solid color-mix(in srgb,var(--border)50%,transparent 50%);align-items:center;gap:4px;width:52px;min-width:52px;max-width:52px;padding-top:12px}.chat-sidebar-expand{width:36px;height:36px;color:var(--text-muted);border-radius:var(--radius-md);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;transition:all .15s;display:flex}.chat-sidebar-expand:hover{background:var(--hover-bg);color:var(--text-primary)}.chat-sidebar-header{justify-content:space-between;align-items:center;padding:14px 16px 8px;display:flex}.chat-sidebar-title{font-size:10px;font-weight:var(--weight-semibold);color:var(--text-muted);text-transform:uppercase;letter-spacing:var(--tracking-caps);opacity:.7;margin:0}.chat-sidebar-collapse{width:28px;height:28px;color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;transition:all .15s;display:flex}.chat-sidebar-collapse:hover{background:var(--hover-bg);color:var(--text-primary)}.chat-new-btn{border:1px solid color-mix(in srgb,var(--border)60%,transparent);color:var(--text-secondary);border-radius:var(--radius-lg);cursor:pointer;font-size:var(--text-sm);font-weight:var(--weight-medium);font-family:var(--font-sans);background:0 0;align-items:center;gap:8px;margin:8px 12px;padding:10px 14px;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex}.chat-new-btn:hover{color:#6366f1;background:#6366f10f;border-color:#6366f1}.chat-search-wrap{margin:4px 12px 8px;position:relative}.chat-search-icon{color:var(--text-muted);pointer-events:none;opacity:.6;position:absolute;top:50%;left:10px;transform:translateY(-50%)}.chat-search-input{background:var(--surface-2);border:1px solid color-mix(in srgb,var(--border)50%,transparent);border-radius:var(--radius-md);width:100%;color:var(--text-primary);font-size:var(--text-xs);font-family:var(--font-sans);outline:none;padding:8px 30px;transition:all .15s}.chat-search-input::placeholder{color:var(--text-muted);opacity:.6}.chat-search-input:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f114}.chat-search-clear{background:var(--surface-3);width:18px;height:18px;color:var(--text-muted);border-radius:var(--radius-full);cursor:pointer;border:none;justify-content:center;align-items:center;transition:all .15s;display:flex;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.chat-search-clear:hover{background:var(--active-bg);color:var(--text-primary)}.chat-list{flex:1;padding:0 8px 12px;overflow:hidden auto}.chat-list::-webkit-scrollbar{width:4px}.chat-list::-webkit-scrollbar-track{background:0 0}.chat-list::-webkit-scrollbar-thumb{background:color-mix(in srgb,var(--border)50%,transparent);border-radius:var(--radius-full)}.chat-list::-webkit-scrollbar-thumb:hover{background:var(--border)}.chat-list-loading{color:var(--text-muted);font-size:var(--text-xs);flex-direction:column;align-items:center;gap:8px;padding:32px 16px;display:flex}.chat-spin{animation:.8s linear infinite chatSpin}@keyframes chatSpin{to{transform:rotate(360deg)}}.chat-list-empty{color:var(--text-muted);text-align:center;flex-direction:column;align-items:center;gap:10px;padding:40px 16px;display:flex}.chat-list-empty svg{opacity:.3}.chat-list-empty p{font-size:var(--text-sm);margin:0;line-height:1.5}.chat-list-empty-sub{opacity:.5;font-size:var(--text-xs)!important}.chat-group{margin-bottom:4px}.chat-group-label{font-size:9px;font-weight:var(--weight-bold);color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;opacity:.6;padding:12px 8px 5px}.chat-item{border-radius:var(--radius-md);cursor:pointer;border:1px solid #0000;justify-content:space-between;align-items:center;min-height:36px;padding:9px 10px;transition:all .15s;display:flex;position:relative}.chat-item:hover{background:var(--hover-bg)}.chat-item-active{background:#6366f10f;border-color:#6366f11f}.chat-item-active:before{content:"";background:#6366f1;border-radius:0 3px 3px 0;width:3px;position:absolute;top:6px;bottom:6px;left:0}.chat-item-active:hover{background:#6366f11a}.chat-item-content{flex:1;align-items:center;gap:6px;min-width:0;display:flex;overflow:hidden}.chat-item-pin{color:#6366f1;flex-shrink:0}.chat-item-title{font-size:var(--text-sm);color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.chat-item-active .chat-item-title{color:#6366f1;font-weight:var(--weight-semibold)}.chat-item-actions{opacity:0;align-items:center;transition:opacity .15s;display:flex;position:relative}.chat-item:hover .chat-item-actions{opacity:1}.chat-item-menu-btn{width:24px;height:24px;color:var(--text-muted);border-radius:var(--radius-xs);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;transition:all .15s;display:flex}.chat-item-menu-btn:hover{background:var(--active-bg);color:var(--text-primary)}.chat-item:has(.chat-item-menu){z-index:50}.chat-item:has(.chat-item-menu) .chat-item-actions{opacity:1}.chat-item-menu{z-index:var(--z-dropdown);background:var(--surface-1);border:1px solid color-mix(in srgb,var(--border)60%,transparent);border-radius:var(--radius-lg);min-width:150px;box-shadow:var(--shadow-lg);padding:4px;animation:.15s cubic-bezier(.16,1,.3,1) chatMenuIn;position:absolute;top:100%;right:0}@keyframes chatMenuIn{0%{opacity:0;transform:translateY(-4px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.chat-menu-option{width:100%;color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;font-size:var(--text-xs);font-family:var(--font-sans);text-align:left;background:0 0;border:none;align-items:center;gap:8px;padding:8px 10px;transition:all .15s;display:flex}.chat-menu-option:hover{background:var(--hover-bg);color:var(--text-primary)}.chat-menu-danger:hover{background:var(--danger-light);color:var(--danger)}.chat-item-edit{align-items:center;gap:4px;width:100%;display:flex}.chat-item-edit-input{background:var(--surface-2);border-radius:var(--radius-sm);min-width:0;color:var(--text-primary);font-size:var(--text-sm);font-family:var(--font-sans);border:1px solid #6366f1;outline:none;flex:1;padding:4px 8px;box-shadow:0 0 0 3px #6366f114}.chat-item-edit-confirm,.chat-item-edit-cancel{border-radius:var(--radius-xs);cursor:pointer;background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;transition:all .15s;display:flex}.chat-item-edit-confirm{color:var(--success)}.chat-item-edit-confirm:hover{background:var(--success-light)}.chat-item-edit-cancel{color:var(--danger)}.chat-item-edit-cancel:hover{background:var(--danger-light)}.chat-sidebar-footer{border-top:1px solid color-mix(in srgb,var(--border)40%,transparent);flex-shrink:0;justify-content:center;align-items:center;padding:10px 16px 14px;display:flex}.chat-sidebar-banner{border-radius:var(--radius-md);opacity:.4;pointer-events:none;-webkit-user-select:none;user-select:none;width:auto;max-width:110px;height:auto;transition:opacity .2s}.chat-sidebar-footer:hover .chat-sidebar-banner{opacity:.7}@media (max-width:768px){.chat-sidebar{z-index:var(--z-drawer);width:300px;min-width:300px;max-width:300px;height:100dvh;box-shadow:var(--shadow-xl);opacity:0;pointer-events:none;transition:transform .25s cubic-bezier(.16,1,.3,1),opacity .25s cubic-bezier(.16,1,.3,1);position:fixed;top:0;left:0;transform:translate(-100%)}.chat-sidebar.chat-sidebar-mobile-open{opacity:1;pointer-events:auto;transform:translate(0)}.chat-sidebar-collapsed{display:none}.chat-item{min-height:var(--touch-target-min);padding:10px 12px}.chat-item-actions{opacity:1}.chat-new-btn{min-height:var(--touch-target-min);padding:12px 14px}.chat-menu-option{min-height:var(--touch-target-min);padding:10px 12px}.chat-sidebar-collapse{width:var(--touch-target-min);height:var(--touch-target-min)}.chat-sidebar-footer{padding-bottom:calc(14px + var(--safe-bottom))}}@media (max-width:400px){.chat-sidebar{width:280px;min-width:280px;max-width:280px}}.chat-item-fade{opacity:0;animation:.28s cubic-bezier(.16,1,.3,1) forwards sidebarItemFade}@keyframes sidebarItemFade{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.chat-item-menu-btn,.chat-sidebar-collapse,.chat-sidebar-expand{transition:transform .15s cubic-bezier(.16,1,.3,1),background-color .15s,color .15s}.chat-item-menu-btn:hover,.chat-sidebar-collapse:hover,.chat-sidebar-expand:hover{transform:scale(1.06)}.chat-item-menu-btn:active,.chat-sidebar-collapse:active,.chat-sidebar-expand:active{transform:scale(.95)}.chat-menu-option{transition:background-color .15s,color .15s,transform .15s cubic-bezier(.16,1,.3,1)}.chat-menu-option:hover{transform:translate(2px)}@media (prefers-reduced-motion:reduce){.chat-sidebar,.chat-item-menu{transition-duration:.01ms!important;animation-duration:.01ms!important}}