:root{--bg: #0f1117;--bg-secondary: #1a1d27;--bg-tertiary: #242836;--border: #2d3348;--text-primary: #e5e7eb;--text-secondary: #9ca3af;--text-muted: #6b7280;--accent: #3b82f6;--accent-bg: rgba(59,130,246,.1);--accent-border: rgba(59,130,246,.3);--success: #22c55e;--warning: #f59e0b;--error: #ef4444;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text-primary);overflow:hidden;height:100vh}#root{height:100vh}.app-layout{display:flex;height:100vh}.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:16px;border-bottom:1px solid var(--border)}.sidebar-header h2{font-size:16px;font-weight:600;margin-bottom:10px}.btn-new{width:100%;padding:8px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-size:13px;font-weight:500}.btn-new:hover{opacity:.9}.session-list{flex:1;overflow-y:auto;padding:8px}.session-item{padding:10px 12px;border-radius:var(--radius);cursor:pointer;position:relative;margin-bottom:4px;transition:background .15s}.session-item:hover{background:var(--bg-tertiary)}.session-item.active{background:var(--accent-bg);border:1px solid var(--accent-border)}.session-title{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:20px}.session-meta{font-size:11px;color:var(--text-muted);margin-top:4px}.btn-delete{position:absolute;top:8px;right:8px;background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:16px;line-height:1;padding:2px 6px;border-radius:4px}.btn-delete:hover{color:var(--error);background:#ef44441a}.session-empty{text-align:center;color:var(--text-muted);padding:40px 16px;font-size:13px}.top-panels{display:flex;height:220px;min-height:180px;border-bottom:1px solid var(--border)}.graph-panel{flex:1;display:flex;flex-direction:column;border-right:1px solid var(--border)}.exec-panel{width:280px;display:flex;flex-direction:column}.panel-header{padding:8px 12px;font-size:12px;font-weight:600;color:var(--text-secondary);background:var(--bg-tertiary);border-bottom:1px solid var(--border);text-transform:uppercase;letter-spacing:1px}.graph-container{flex:1;background:var(--bg)}.graph-loading{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--text-muted);font-size:13px}.graph-panel{position:relative}.exec-status{padding:8px 12px;display:flex;align-items:center;gap:8px;font-size:13px;border-bottom:1px solid var(--border)}.status-dot{width:8px;height:8px;border-radius:50%}.status-dot.idle{background:var(--text-muted)}.status-dot.running{background:var(--success);animation:pulse 1.5s infinite}.status-dot.error{background:var(--error)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.run-id{font-size:11px;color:var(--text-muted);font-family:monospace}.event-log{flex:1;overflow-y:auto;padding:4px 0}.event-item{padding:3px 12px;display:flex;justify-content:space-between;font-size:11px}.event-type{color:var(--accent);font-family:monospace}.event-time{color:var(--text-muted)}.event-empty{text-align:center;color:var(--text-muted);padding:20px;font-size:12px}.chat-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.messages{flex:1;overflow-y:auto;padding:16px}.msg{display:flex;gap:10px;margin-bottom:12px;max-width:85%}.msg-user{margin-left:auto;flex-direction:row-reverse}.msg-avatar{width:32px;height:32px;border-radius:50%;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.msg-content{padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.6}.msg-user .msg-content{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg-assistant .msg-content{background:var(--bg-secondary);border:1px solid var(--border);border-bottom-left-radius:4px}.msg-content pre{background:var(--bg);padding:8px 10px;border-radius:6px;overflow-x:auto;font-size:12px;margin:8px 0}.msg-content code{font-family:JetBrains Mono,Fira Code,monospace;font-size:12px}.msg-content p{margin-bottom:8px}.msg-content p:last-child{margin-bottom:0}.msg-content ul,.msg-content ol{padding-left:20px;margin:6px 0}.msg-content table{border-collapse:collapse;margin:8px 0;font-size:12px}.msg-content th,.msg-content td{border:1px solid var(--border);padding:4px 8px}.msg-content th{background:var(--bg-tertiary)}.streaming .msg-content{border-color:var(--accent-border)}.typing-cursor{animation:blink 1s step-end infinite;color:var(--accent)}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.tool-card{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);margin:6px 0;overflow:hidden}.tool-header{display:flex;align-items:center;gap:8px;padding:8px 12px;cursor:pointer;font-size:13px}.tool-header:hover{background:#ffffff08}.tool-icon{font-size:14px}.tool-name{font-weight:500;color:var(--accent);font-family:monospace}.tool-toggle{margin-left:auto;color:var(--text-muted);font-size:10px}.tool-body{padding:8px 12px;border-top:1px solid var(--border)}.tool-section{margin-bottom:8px}.tool-section strong{font-size:11px;color:var(--text-secondary);display:block;margin-bottom:4px}.tool-section pre{background:var(--bg);padding:6px 8px;border-radius:4px;font-size:11px;max-height:150px;overflow:auto;white-space:pre-wrap;word-break:break-all}.tool-card.running{border-left:3px solid var(--warning)}.tool-card.done{border-left:3px solid var(--success)}.input-bar{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--border);background:var(--bg-secondary)}.input-bar textarea{flex:1;background:var(--bg);border:1px solid var(--border);color:var(--text-primary);padding:10px 14px;border-radius:var(--radius);font-size:14px;resize:none;font-family:inherit;line-height:1.5}.input-bar textarea:focus{outline:none;border-color:var(--accent-border)}.input-bar textarea:disabled{opacity:.5}.input-bar button{padding:10px 18px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-size:16px}.input-bar button:disabled{opacity:.4;cursor:not-allowed}.input-bar button:hover:not(:disabled){opacity:.9}.no-session{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:14px}@media(max-width:768px){.sidebar{width:200px}.top-panels{height:160px}.exec-panel{width:200px}}@media(max-width:600px){.app-layout{flex-direction:column}.sidebar{width:100%;height:auto;max-height:200px}.top-panels{flex-direction:column;height:300px}.exec-panel{width:100%;height:120px}}