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.context-item-remove{opacity:1}.context-item-remove:hover{color:#f87171}.app-footer{text-align:center;color:var(--text-tertiary);flex-shrink:0;padding:8px 0 14px;font-size:12px;font-weight:450}.footer-sep{opacity:.4;margin:0 6px}.footer-link{color:var(--text-tertiary);transition:color var(--transition);text-decoration:none}.footer-link:hover{color:var(--accent)}.about-container{max-width:680px;margin:0 auto;padding:48px 24px 64px}.about-back{color:var(--text-tertiary);transition:color var(--transition);align-items:center;gap:4px;margin-bottom:32px;font-size:13px;font-weight:500;text-decoration:none;display:inline-flex}.about-back:hover{color:var(--accent)}.about-container h1{letter-spacing:-.4px;margin-bottom:8px;font-size:24px;font-weight:700}.about-container .about-subtitle{color:var(--text-secondary);margin-bottom:36px;font-size:15px;line-height:1.6}.about-container h2{letter-spacing:-.2px;margin:28px 0 10px;font-size:17px;font-weight:650}.about-container p{color:var(--text-secondary);margin-bottom:14px;font-size:14.5px;line-height:1.7}.about-tech-grid{grid-template-columns:1fr 1fr;gap:12px;margin:16px 0 24px;display:grid}.about-tech-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:14px 16px}.about-tech-card .tech-label{text-transform:uppercase;letter-spacing:.5px;color:var(--text-tertiary);margin-bottom:4px;font-size:11px;font-weight:600}.about-tech-card .tech-value{color:var(--text);font-size:14px;font-weight:550}.about-tech-card .tech-detail{color:var(--text-secondary);margin-top:2px;font-size:12.5px;line-height:1.5}.agent-diagram{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);margin:20px 0 28px;padding:24px 16px}.agent-diagram svg{width:100%;height:auto;display:block}.about-author{border-top:1px solid var(--border-light);margin-top:36px;padding-top:24px}.about-author a{color:var(--accent);text-decoration:none}.about-author a:hover{text-decoration:underline}@media (max-width:640px){.about-tech-grid{grid-template-columns:1fr}}.trace-panel{background:var(--trace-bg);border-left:1px solid var(--trace-border);flex-direction:column;width:380px;min-width:380px;height:100dvh;transition:width .3s cubic-bezier(.4,0,.2,1),min-width .3s cubic-bezier(.4,0,.2,1),opacity .3s cubic-bezier(.4,0,.2,1);display:flex;overflow:hidden}.trace-panel.collapsed{opacity:0;pointer-events:none;border-left:none;width:0;min-width:0}.trace-panel.open{opacity:1;pointer-events:auto}.trace-toggle{background:var(--trace-surface);border:none;border-bottom:1px solid var(--trace-border);cursor:pointer;width:100%;color:var(--trace-text);transition:background var(--transition);justify-content:space-between;align-items:center;padding:14px 16px;font-family:inherit;display:flex}.trace-toggle:hover{background:#1c2030}.trace-toggle-left{align-items:center;gap:10px;display:flex}.trace-indicator{background:var(--trace-muted);border-radius:50%;flex-shrink:0;width:8px;height:8px;transition:background .3s}.trace-indicator.active{background:var(--trace-green);animation:2s ease-in-out infinite tracePulse;box-shadow:0 0 8px #34d39980}.trace-indicator.done{background:var(--trace-blue)}.trace-toggle-label{letter-spacing:.5px;text-transform:uppercase;font-size:12px;font-weight:600}.trace-count{background:var(--trace-border);color:var(--trace-text-dim);text-align:center;border-radius:10px;min-width:20px;padding:1px 7px;font-size:11px;font-weight:600}.trace-chevron{color:var(--trace-text-dim);transition:transform var(--transition);flex-shrink:0}.trace-chevron.rotated{transform:rotate(180deg)}.trace-body{flex-direction:column;flex:1;padding:0;display:flex;overflow-y:auto}.trace-body::-webkit-scrollbar{width:5px}.trace-body::-webkit-scrollbar-track{background:0 0}.trace-body::-webkit-scrollbar-thumb{background:var(--trace-border);border-radius:3px}.trace-body::-webkit-scrollbar-thumb:hover{background:var(--trace-muted)}.trace-empty{color:var(--trace-text-dim);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;padding:40px 20px;display:flex}.trace-empty-icon{background:var(--trace-surface);border:1px solid var(--trace-border);width:40px;height:40px;color:var(--trace-muted);border-radius:10px;justify-content:center;align-items:center;display:flex}.trace-empty p{text-align:center;font-size:12.5px;font-weight:450}.trace-timeline{flex-direction:column;gap:0;padding:12px 16px 16px;display:flex}.trace-event{align-items:flex-start;gap:12px;padding:8px 0;animation:.25s ease-out traceEventIn;display:flex;position:relative}.trace-event.depth-1{padding-left:20px}.trace-event.depth-2{padding-left:40px}.trace-event.depth-1 .trace-event-label,.trace-event.depth-2 .trace-event-label{font-size:11.5px}.trace-event.depth-2 .trace-event-label{color:var(--trace-text-dim);font-style:italic}.trace-event-line{background:var(--trace-border);width:1px;position:absolute;top:22px;bottom:-8px;left:6px}.trace-event.depth-1 .trace-event-line{left:26px}.trace-event.depth-2 .trace-event-line{left:46px}.trace-event:last-of-type .trace-event-line{display:none}.trace-event-dot{width:14px;height:14px;color:var(--event-color,var(--trace-muted));z-index:1;flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;display:flex;position:relative}.trace-event-content{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.trace-event-label{color:var(--trace-text);word-break:break-word;font-family:SF Mono,Fira Code,Fira Mono,Menlo,monospace;font-size:12.5px;font-weight:450;line-height:1.4}.trace-event-time{color:var(--trace-text-dim);font-variant-numeric:tabular-nums;font-family:SF Mono,Fira Code,Fira Mono,Menlo,monospace;font-size:11px}.trace-status{background:var(--trace-surface);border-top:1px solid var(--trace-border);color:var(--trace-green);flex-shrink:0;align-items:center;gap:8px;padding:10px 16px;font-family:SF Mono,Fira Code,Fira Mono,Menlo,monospace;font-size:12px;display:flex}.trace-status-dot{background:var(--trace-green);border-radius:50%;flex-shrink:0;width:6px;height:6px;animation:2s ease-in-out infinite tracePulse}@keyframes tracePulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes traceEventIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.trace-expand-btn{background:var(--surface-elevated);border:1px solid var(--border);cursor:pointer;width:28px;height:64px;color:var(--text-tertiary);z-index:40;transition:background var(--transition), color var(--transition), width var(--transition);border-right:none;border-radius:8px 0 0 8px;justify-content:center;align-items:center;padding:0;display:flex;position:fixed;top:50%;right:0;transform:translateY(-50%)}.trace-expand-btn:hover{background:var(--accent-light);color:var(--accent);width:32px}.trace-expand-btn svg{transition:transform var(--transition)}.trace-expand-btn.panel-open{right:380px}.trace-expand-btn .badge{background:var(--trace-green);border-radius:50%;width:8px;height:8px;position:absolute;top:6px;right:4px;box-shadow:0 0 6px #34d39980}@media (max-width:768px){.trace-panel{border-left:none;border-top:1px solid var(--trace-border);z-index:50;border-radius:16px 16px 0 0;width:100%;height:auto;max-height:50vh;position:fixed;top:auto;bottom:0;right:0}.trace-panel.collapsed{opacity:1;pointer-events:auto;width:100%;height:auto;max-height:none}.trace-panel.collapsed .trace-body{display:none}.trace-chevron{transform:rotate(-90deg)}.trace-chevron.rotated{transform:rotate(90deg)}.trace-expand-btn{display:none}}@media (max-width:640px){.app-container{padding:0 14px}.message-bubble{max-width:88%;font-size:14px}.app-title{font-size:18px}.empty-state{margin-top:60px}.send-button{padding:10px 16px}}