:root{--bg-primary: #0d0d0d;--bg-secondary: #1a1a1a;--bg-tertiary: #2d2d2d;--bg-hover: #3d3d3d;--border-subtle: #2d2d2d;--border-default: #404040;--border-strong: #525252;--text-primary: #ececec;--text-secondary: #a1a1a1;--text-tertiary: #737373;--text-disabled: #525252;--brand-primary: #3b82f6;--brand-hover: #2563eb;--brand-active: #1d4ed8;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--info: #06b6d4;--accent-wisdom: #d97706;--accent-wisdom-subtle: rgba(217, 119, 6, .15);--accent-wisdom-glow: 0 0 20px rgba(217, 119, 6, .3);--accent-discovery: #059669;--accent-discovery-subtle: rgba(5, 150, 105, .15);--accent-discovery-glow: 0 0 20px rgba(5, 150, 105, .3);--accent-inquiry: #6366f1;--accent-inquiry-subtle: rgba(99, 102, 241, .15);--accent-inquiry-glow: 0 0 20px rgba(99, 102, 241, .3);--contemplation-bg: rgba(99, 102, 241, .05);--contemplation-pulse: rgba(99, 102, 241, .15);--duration-contemplate: 2s;--duration-insight: 1.5s;--ease-breathe: cubic-bezier(.4, 0, .6, 1);--msg-user-bg: #3b82f6;--msg-user-text: #ffffff;--msg-assistant-bg: #2d2d2d;--msg-assistant-text: #ececec;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .6);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.75;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--duration-fast: .15s;--duration-normal: .2s;--duration-slow: .3s;--duration-slower: .5s;--ease-in: cubic-bezier(.4, 0, 1, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--ease-in-out: cubic-bezier(.4, 0, .2, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1)}@media(prefers-reduced-motion:reduce){:root{--duration-fast: 0ms;--duration-normal: 0ms;--duration-slow: 0ms;--duration-slower: 0ms}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);height:100vh;overflow:hidden;background:var(--bg-secondary);color:var(--text-primary);font-size:var(--text-base);line-height:var(--leading-normal)}#app{display:flex;height:100vh}.session-history{width:260px;min-width:60px;max-width:500px;display:flex;flex-direction:column;background:var(--bg-secondary);border-right:1px solid var(--border-subtle);transition:opacity var(--duration-normal) var(--ease-out);flex-shrink:0;overflow:hidden;position:relative}.session-history.collapsed{width:0;min-width:0;opacity:0}.session-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-4);border-bottom:1px solid var(--border-subtle);background:var(--bg-primary)}.session-header h2{font-size:var(--text-lg);font-weight:var(--font-semibold);color:var(--text-primary)}.new-session-btn{padding:var(--space-2) var(--space-3);background:var(--brand-primary);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;font-size:var(--text-xs);font-weight:var(--font-medium);transition:all var(--duration-fast) var(--ease-out)}.new-session-btn:hover{background:var(--brand-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.new-session-btn:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.session-list{flex:1;overflow-y:auto;padding:var(--space-2)}.session-item{padding:var(--space-3) var(--space-4);margin-bottom:var(--space-2);background:var(--bg-tertiary);border-radius:var(--radius-md);cursor:pointer;border:1px solid transparent;transition:all var(--duration-fast) var(--ease-out)}.session-item:hover{background:var(--bg-hover);border-color:var(--border-default);transform:translate(2px)}.session-item.active{background:#3b82f61a;border-color:var(--brand-primary)}.session-name{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--text-primary);margin-bottom:var(--space-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-time{font-size:var(--text-xs);color:var(--text-tertiary)}.session-actions{display:flex;justify-content:flex-end;margin-top:var(--space-2)}.delete-session-btn{padding:var(--space-1) var(--space-2);background:var(--error);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:var(--text-xs);transition:all var(--duration-fast) var(--ease-out)}.delete-session-btn:hover{background:#dc2626;transform:scale(1.05)}.delete-session-btn:active{transform:scale(.95)}.main-chat{flex:1;display:flex;flex-direction:column;border-right:1px solid var(--border-subtle);background:var(--bg-primary);position:relative}.toggle-sidebar-btn{padding:var(--space-2) var(--space-3);background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-default);border-radius:var(--radius-md);cursor:pointer;font-size:var(--text-base);transition:all var(--duration-fast) var(--ease-out);margin-right:var(--space-3);flex-shrink:0}.toggle-sidebar-btn:hover{background:var(--bg-hover);border-color:var(--brand-primary);transform:scale(1.05)}.toggle-sidebar-btn:active{transform:scale(.95)}.chat-messages{flex:1;overflow-y:auto;padding:var(--space-6);display:flex;flex-direction:column;gap:var(--space-4)}.message{display:flex;flex-direction:column;max-width:75%;animation:messageSlideIn var(--duration-slow) var(--ease-out)}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end}.message.assistant{align-self:flex-start}.message-bubble{padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:box-shadow var(--duration-normal) var(--ease-out)}.message.user .message-bubble{background:#3b82f626;color:var(--text-primary);border-bottom-right-radius:var(--radius-sm);border:1px solid rgba(59,130,246,.3)}.message.assistant .message-bubble{background:var(--msg-assistant-bg);color:var(--msg-assistant-text);border-bottom-left-radius:var(--radius-sm);border:1px solid var(--border-subtle)}.message-bubble:hover{box-shadow:var(--shadow-md)}.message.highlight .message-bubble{animation:messageHighlight 1s var(--ease-out)}@keyframes messageHighlight{0%{box-shadow:0 0 #3b82f680}50%{box-shadow:0 0 0 8px #3b82f633}to{box-shadow:var(--shadow-sm)}}.message-header{font-size:var(--text-xs);color:var(--text-tertiary);margin-bottom:var(--space-1);font-weight:var(--font-medium)}.message-content{white-space:pre-wrap;word-wrap:break-word;line-height:var(--leading-relaxed)}.chat-navigation{display:flex;align-items:center;justify-content:center;gap:var(--space-4);padding:var(--space-3);border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);background:var(--bg-primary)}.nav-btn{padding:var(--space-2) var(--space-4);border:1px solid var(--border-default);background:var(--bg-tertiary);color:var(--text-primary);border-radius:var(--radius-md);cursor:pointer;font-size:var(--text-base);transition:all var(--duration-fast) var(--ease-out)}.nav-btn:hover:not(:disabled){background:var(--bg-hover);transform:scale(1.05)}.nav-btn:active:not(:disabled){transform:scale(.95)}.nav-btn:disabled{opacity:.4;cursor:not-allowed}.conversation-indicator{font-size:var(--text-sm);color:var(--text-secondary)}.chat-input-container{position:sticky;bottom:0;padding:var(--space-6);background:linear-gradient(to top,var(--bg-primary) 0%,var(--bg-primary) 70%,transparent 100%)}.chat-input-wrapper{max-width:48rem;margin:0 auto;display:flex;gap:var(--space-2);background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:var(--space-3);transition:all var(--duration-normal) var(--ease-out)}.chat-input-wrapper:focus-within{border-color:var(--brand-primary);box-shadow:0 0 0 3px #3b82f61a,var(--shadow-lg)}.chat-input{flex:1;padding:var(--space-2);background:transparent;border:none;color:var(--text-primary);font-size:var(--text-base);font-family:var(--font-sans);line-height:var(--leading-normal);resize:none;outline:none}.chat-input::placeholder{color:var(--text-tertiary);transition:opacity var(--duration-normal) var(--ease-out)}.chat-input:focus::placeholder{opacity:.4}.send-btn{padding:var(--space-2) var(--space-4);background:var(--brand-primary);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;font-size:var(--text-sm);font-weight:var(--font-medium);transition:all var(--duration-fast) var(--ease-out);flex-shrink:0}.send-btn:hover:not(:disabled){background:var(--brand-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.send-btn:active:not(:disabled){transform:translateY(0);box-shadow:var(--shadow-sm)}.send-btn:disabled{opacity:.4;cursor:not-allowed}.agent-panel{width:350px;min-width:60px;max-width:600px;display:flex;flex-direction:column;background:var(--bg-secondary);border-left:1px solid var(--border-subtle);transition:opacity var(--duration-normal) var(--ease-out);flex-shrink:0;overflow:hidden;position:relative}.agent-panel.collapsed{width:0;min-width:0;opacity:0}.resize-handle{position:absolute;top:0;bottom:0;width:6px;background:transparent;cursor:col-resize;z-index:100;transition:background var(--duration-fast) var(--ease-out)}.resize-handle:after{content:"";position:absolute;top:50%;transform:translateY(-50%);width:4px;height:40px;background:var(--border-subtle);border-radius:var(--radius-full);opacity:0;transition:opacity var(--duration-normal) var(--ease-out),background var(--duration-fast) var(--ease-out)}.resize-handle:hover:after,.resize-handle.dragging:after{opacity:1}.resize-handle:hover{background:#3b82f61a}.resize-handle:hover:after{background:var(--brand-primary)}.resize-handle.dragging{background:#3b82f626}.resize-handle.dragging:after{background:var(--brand-primary);opacity:1}.resize-handle-right{right:-3px}.resize-handle-right:after{right:1px}.resize-handle-left{left:-3px}.resize-handle-left:after{left:1px}.session-history.collapsed .resize-handle,.agent-panel.collapsed .resize-handle{display:none}body.resizing{user-select:none;cursor:col-resize!important}body.resizing *{cursor:col-resize!important}.agent-header{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--border-subtle);background:var(--bg-primary)}.agent-header-top{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.agent-header-model{display:flex;align-items:center;gap:var(--space-2);margin-top:var(--space-2);padding-top:var(--space-2);border-top:1px solid var(--border-subtle)}.agent-model-label{font-size:var(--text-xs);color:var(--text-tertiary);font-weight:var(--font-medium)}.agent-model-name{font-size:var(--text-xs);font-weight:var(--font-medium);color:var(--brand-primary);background:#3b82f61a;padding:2px var(--space-2);border-radius:var(--radius-sm);cursor:default;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}.agent-chat-selector{display:flex;align-items:center;gap:var(--space-2);flex:1;min-width:0}.agent-chat-select{flex:1;min-width:0;padding:var(--space-2) var(--space-3);background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;transition:all var(--duration-fast) var(--ease-out);appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center;padding-right:28px}.agent-chat-select:hover{background-color:var(--bg-hover);border-color:var(--brand-primary)}.agent-chat-select:focus{outline:none;border-color:var(--brand-primary);box-shadow:0 0 0 3px #3b82f61a}.new-agent-chat-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--brand-primary);border:none;border-radius:var(--radius-md);color:#fff;font-size:var(--text-lg);font-weight:var(--font-bold);cursor:pointer;transition:all var(--duration-fast) var(--ease-out);flex-shrink:0}.new-agent-chat-btn:hover{background:var(--brand-hover);transform:scale(1.05)}.new-agent-chat-btn:active{transform:scale(.95)}.delete-agent-chat-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid transparent;border-radius:var(--radius-md);color:var(--text-tertiary);font-size:var(--text-sm);cursor:pointer;transition:all var(--duration-fast) var(--ease-out);flex-shrink:0}.delete-agent-chat-btn:hover{background:#ef44441a;border-color:var(--error);color:var(--error)}.delete-agent-chat-btn:active{transform:scale(.95)}.agent-header h2{font-size:var(--text-lg);font-weight:var(--font-semibold);color:var(--text-primary)}.agent-chat-section{flex:1;display:flex;flex-direction:column;padding:0;overflow:hidden;transition:opacity var(--duration-fast) var(--ease-out)}.agent-panel.collapsed .agent-chat-section{opacity:0}.agent-messages{flex:1;overflow-y:auto;padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-4);scroll-behavior:smooth}.agent-message{padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);font-size:var(--text-sm);line-height:var(--leading-relaxed);animation:messageSlideIn var(--duration-slow) var(--ease-out);word-wrap:break-word;white-space:pre-wrap}.agent-message.user{background:linear-gradient(135deg,#3b82f633,#3b82f61a);color:var(--text-primary);align-self:flex-end;max-width:90%;border-bottom-right-radius:var(--radius-sm);border:1px solid rgba(59,130,246,.3)}.agent-message.assistant{background:var(--bg-primary);color:var(--text-primary);align-self:flex-start;max-width:95%;border-bottom-left-radius:var(--radius-sm);border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm)}.agent-message.assistant:before{content:"🤖";display:block;font-size:var(--text-xs);margin-bottom:var(--space-1);opacity:.7}.agent-message.user:before{content:"You";display:block;font-size:var(--text-xs);font-weight:var(--font-semibold);color:var(--brand-primary);margin-bottom:var(--space-1)}.agent-message.loading{opacity:.8}.agent-message.loading:after{content:"";display:inline-block;width:12px;height:12px;margin-left:var(--space-2);border:2px solid var(--border-default);border-top-color:var(--brand-primary);border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.agent-input-wrapper{padding:var(--space-4);background:linear-gradient(to top,var(--bg-secondary) 0%,var(--bg-secondary) 80%,transparent 100%);border-top:1px solid var(--border-subtle)}.agent-input-container{display:flex;align-items:flex-end;gap:var(--space-2);background:var(--bg-primary);border:2px solid var(--border-default);border-radius:var(--radius-xl);padding:var(--space-2);transition:all var(--duration-normal) var(--ease-out);box-shadow:var(--shadow-md)}.agent-input-container:focus-within{border-color:var(--brand-primary);box-shadow:0 0 0 4px #3b82f626,var(--shadow-lg)}.agent-input{flex:1;padding:var(--space-3) var(--space-4);border:none;background:transparent;color:var(--text-primary);font-size:var(--text-lg);font-family:var(--font-sans);line-height:var(--leading-relaxed);resize:none;outline:none;min-height:56px;max-height:200px}.agent-input::placeholder{color:var(--text-tertiary);font-size:var(--text-base)}.agent-send-btn{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--brand-primary);color:#fff;border:none;border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast) var(--ease-out);flex-shrink:0}.agent-send-btn:hover:not(:disabled){background:var(--brand-hover);transform:scale(1.05);box-shadow:var(--shadow-md)}.agent-send-btn:active:not(:disabled){transform:scale(.95)}.agent-send-btn:disabled{opacity:.5;cursor:not-allowed}.agent-send-btn svg{width:18px;height:18px}.agent-input-hint{font-size:10px;color:var(--text-tertiary);text-align:center;margin-top:var(--space-2);opacity:.7}.agent-messages::-webkit-scrollbar{width:6px}.agent-messages::-webkit-scrollbar-track{background:transparent}.agent-messages::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:var(--radius-full)}.agent-messages::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}.agent-welcome{text-align:center;padding:var(--space-6);color:var(--text-secondary);overflow-y:auto}.agent-welcome-icon{font-size:56px;margin-bottom:var(--space-4);filter:drop-shadow(0 4px 8px rgba(0,0,0,.3))}.agent-welcome-title{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--text-primary);margin-bottom:var(--space-2)}.agent-welcome-text{font-size:var(--text-sm);line-height:var(--leading-relaxed);max-width:320px;margin:0 auto var(--space-6);color:var(--text-secondary)}.agent-welcome-section{margin-bottom:var(--space-5);text-align:left}.agent-welcome-section-title{font-size:var(--text-xs);font-weight:var(--font-semibold);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:var(--space-3);padding-left:var(--space-1)}.agent-welcome-suggestion{width:100%;padding:var(--space-3) var(--space-4);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast) var(--ease-out);text-align:left;display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-2)}.agent-welcome-suggestion:last-child{margin-bottom:0}.agent-welcome-suggestion .suggestion-title{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--text-primary)}.agent-welcome-suggestion .suggestion-desc{font-size:var(--text-xs);color:var(--text-tertiary)}.agent-welcome-suggestion:hover{background:var(--bg-hover);border-color:var(--brand-primary);transform:translate(4px);box-shadow:var(--shadow-sm)}.agent-welcome-suggestion:hover .suggestion-title{color:var(--brand-primary)}.agent-welcome-suggestion:hover .suggestion-desc{color:var(--text-secondary)}.agent-welcome-suggestion.featured{background:linear-gradient(135deg,#8b5cf626,#3b82f61a);border:2px solid rgba(139,92,246,.3);padding:var(--space-4)}.agent-welcome-suggestion.featured .suggestion-title{font-size:var(--text-base);color:#a78bfa}.agent-welcome-suggestion.featured .suggestion-desc{font-size:var(--text-sm)}.agent-welcome-suggestion.featured:hover{background:linear-gradient(135deg,#8b5cf640,#3b82f626);border-color:#a78bfa;transform:translate(6px);box-shadow:0 4px 12px #8b5cf633}.agent-welcome-suggestion.featured:hover .suggestion-title{color:#c4b5fd}.loading{opacity:.6;font-style:italic}.error{color:#ff6b6b;background:#3d1f1f;border:1px solid #5a2a2a}.conversation-tree-container{background:var(--bg-secondary);border-bottom:1px solid var(--border-subtle);display:flex;flex-direction:column;min-height:60px;max-height:40vh;height:auto;position:relative;transition:max-height var(--duration-slow) var(--ease-in-out)}.conversation-tree-container.collapsed{max-height:48px;min-height:48px}.conversation-tree-container.collapsed .conversation-tree-scroll{display:none}.tree-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-3) var(--space-4);background:var(--bg-primary);border-bottom:1px solid var(--border-subtle);flex-shrink:0}.tree-header-left{display:flex;align-items:center;gap:var(--space-2)}.tree-header-center{display:flex;align-items:center;gap:var(--space-2);cursor:pointer;padding:var(--space-1) var(--space-2);border-radius:var(--radius-md);transition:background var(--duration-fast) var(--ease-out)}.tree-header-center:hover{background:var(--bg-hover)}.tree-header-center h3{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-primary);margin:0}.tree-collapse-icon{font-size:var(--text-xs);color:var(--text-tertiary);transition:transform var(--duration-normal) var(--ease-out)}.conversation-tree-container.collapsed .tree-collapse-icon{transform:rotate(-90deg)}.tree-header-right{display:flex;align-items:center;gap:var(--space-3)}.tree-indicator{font-size:var(--text-xs);color:var(--text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}.toggle-agent-panel-btn{padding:var(--space-2) var(--space-3);background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-default);border-radius:var(--radius-md);cursor:pointer;font-size:var(--text-base);transition:all var(--duration-fast) 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