:root{--bg-primary: #0d0d16;--bg-secondary: #111120;--bg-surface: #181828;--bg-hover: #1e1e32;--bg-input: #13131f;--bg-tertiary: #0a0a12;--text-primary: #e4e6f0;--text-secondary: #9496ab;--text-muted: #565870;--text-accent: #818cf8;--accent: #6366f1;--accent-hover: #7c7ff5;--accent-muted: rgba(99, 102, 241, .1);--accent-glow: rgba(99, 102, 241, .22);--accent-border: rgba(99, 102, 241, .35);--border: #1c1c2e;--border-light: #252540;--success: #34d399;--success-muted: rgba(52, 211, 153, .1);--warning: #fbbf24;--error: #f87171;--user-bubble: #1e1e40;--assistant-bubble: #181828;--system-bubble: #201e10;--radius-xs: 4px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 20px;--shadow-sm: 0 1px 4px rgba(0, 0, 0, .4);--shadow: 0 4px 16px rgba(0, 0, 0, .45);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .6);--shadow-accent: 0 4px 20px rgba(99, 102, 241, .2);--gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--gradient-user: linear-gradient(145deg, #1e1e42 0%, #252550 100%);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", "Fira Code", "Cascadia Code", monospace}.light-theme{--bg-primary: #fafafa;--bg-secondary: #f4f4f8;--bg-surface: #eeeef4;--bg-hover: #e6e6ee;--bg-input: #ffffff;--bg-tertiary: #ededf5;--text-primary: #0f1117;--text-secondary: #4a4d60;--text-muted: #9295aa;--text-accent: #4f46e5;--accent: #5b5ef0;--accent-hover: #4f46e5;--accent-muted: rgba(91, 94, 240, .08);--accent-glow: rgba(91, 94, 240, .15);--accent-border: rgba(91, 94, 240, .3);--border: #e2e2ec;--border-light: #d0d0de;--success: #059669;--success-muted: rgba(5, 150, 105, .08);--warning: #d97706;--error: #dc2626;--user-bubble: #ede9fe;--assistant-bubble: #f4f4f8;--system-bubble: #fefce8;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .07);--shadow: 0 4px 14px rgba(0, 0, 0, .09);--shadow-lg: 0 16px 44px rgba(0, 0, 0, .14);--shadow-accent: 0 4px 20px rgba(91, 94, 240, .15);--gradient-accent: linear-gradient(135deg, #5b5ef0 0%, #7c5af6 100%);--gradient-user: linear-gradient(145deg, #ede9fe 0%, #e0dcfe 100%)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:14px;line-height:1.5;font-feature-settings:"cv08" 1,"cv11" 1,"ss01" 1;text-rendering:optimizeLegibility}.app-container{display:flex;height:100vh;overflow:hidden}.main-content{flex:1;display:flex;flex-direction:column;position:relative;min-height:0;overflow:hidden;background:var(--bg-primary)}.sidebar{width:256px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 12px 12px;flex-shrink:0;position:relative}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:4px 8px 20px}.sidebar-brand-icon{flex-shrink:0;filter:drop-shadow(0 0 8px rgba(99,102,241,.4))}.sidebar-brand-text{display:flex;flex-direction:column;gap:0}.sidebar-brand-name{font-size:16px;font-weight:700;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.4px;line-height:1.2}.sidebar-brand-label{font-size:10px;font-weight:500;color:var(--text-muted);letter-spacing:.5px;text-transform:uppercase}.sidebar-new-chat{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:9px 16px;background:var(--gradient-accent);color:#fff;border:none;border-radius:var(--radius-md);font-size:13px;font-weight:600;letter-spacing:-.1px;cursor:pointer;transition:all .15s ease;margin-bottom:8px;box-shadow:0 2px 10px #6366f133}.sidebar-new-chat:hover{opacity:.92;box-shadow:var(--shadow-accent);transform:translateY(-1px)}.sidebar-new-chat:active{transform:translateY(0);opacity:1}.sidebar-nav{display:flex;flex-direction:column;gap:2px;padding-bottom:4px}.sidebar-nav-btn{display:flex;align-items:center;gap:10px;padding:8px 12px;background:transparent;border:none;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all .12s ease;width:100%;text-align:left}.sidebar-nav-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-nav-btn.active{background:var(--accent-muted);color:var(--text-accent)}.session-list{margin-top:8px;flex:1;min-height:0;overflow:hidden;display:flex;flex-direction:column}.sidebar-section-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);padding:8px 10px 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2px;display:flex;flex-direction:column;gap:2px}.sidebar-meta-row{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:11px}.sidebar-meta-sep{opacity:.6}.sidebar-meta-sep:before{content:"·";margin-right:2px}.sidebar-meta-email{opacity:.7;font-size:10px}.sidebar-logout{color:var(--error);opacity:.8}.sidebar-logout:hover{opacity:1;background:#f8717114;color:var(--error)}.chat-panel{flex:1;display:flex;flex-direction:column;max-width:920px;margin:0 auto;width:100%;min-height:0;overflow:hidden}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--border);background:var(--bg-secondary);min-height:56px;position:relative}.chat-header:after{content:"";position:absolute;bottom:0;left:24px;right:24px;height:1px;background:linear-gradient(90deg,transparent,var(--accent-border),transparent);opacity:.6}.chat-header-left{display:flex;align-items:center;gap:10px}.chat-header-icon{flex-shrink:0}.chat-header-titles{display:flex;flex-direction:column}.chat-header-title{font-size:15px;font-weight:700;letter-spacing:-.4px;line-height:1.2;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.chat-header-right{display:flex;align-items:center;gap:8px}.aep-header-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-xl);font-size:12px;font-weight:500;cursor:pointer;transition:all .15s ease;white-space:nowrap;border:1px solid transparent;line-height:1}.aep-header-btn.connected{background:var(--success-muted);border-color:#34d39940;color:var(--success)}.aep-header-btn.connected:hover{background:#34d3992e;border-color:#34d39966}.aep-header-btn.disconnected{background:var(--bg-surface);border-color:var(--border-light);color:var(--text-secondary)}.aep-header-btn.disconnected:hover{background:var(--accent-muted);border-color:var(--accent);color:var(--text-accent)}.aep-header-org{font-weight:600;max-width:140px;overflow:hidden;text-overflow:ellipsis}.aep-header-sep{opacity:.4}.aep-header-sandbox{opacity:.8;max-width:100px;overflow:hidden;text-overflow:ellipsis}.chat-messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.message{display:flex;gap:10px;max-width:82%;animation:msgIn .22s cubic-bezier(.16,1,.3,1)}@keyframes msgIn{0%{opacity:0;transform:translateY(8px) scale(.99)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;flex-direction:row-reverse}.message.assistant{align-self:flex-start}.message.system{align-self:center;max-width:90%}.message-avatar{width:30px;height:30px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:13px}.assistant-avatar{background:var(--accent-muted);border:1px solid var(--accent-border);box-shadow:0 0 12px #6366f126}.user-avatar{background:var(--bg-surface);border:1px solid var(--border-light)}.message-content{padding:10px 14px;border-radius:var(--radius-lg);font-size:14px;line-height:1.68}.message.user .message-content{background:var(--gradient-user);border:1px solid rgba(99,102,241,.18);border-bottom-right-radius:var(--radius-xs);box-shadow:0 2px 12px #00000040}.message.assistant .message-content{background:var(--assistant-bubble);border:1px solid var(--border);border-left:2px solid rgba(99,102,241,.3);border-bottom-left-radius:var(--radius-xs);box-shadow:0 2px 10px #0003}.message.system .message-content{background:var(--system-bubble);border:1px solid rgba(251,191,36,.15);font-size:13px;color:var(--warning);text-align:center}.message-content p{margin-bottom:8px}.message-content p:last-child{margin-bottom:0}.message-content strong{color:var(--text-primary);font-weight:600}.message-content a{color:var(--text-accent);text-decoration:none}.message-content a:hover{text-decoration:underline}.message-content ul,.message-content ol{padding-left:20px;margin:6px 0}.message-content li{margin-bottom:3px}.inline-code{background:#6366f114;padding:2px 6px;border-radius:4px;font-family:var(--font-mono);font-size:12.5px;color:#a5b4fc;border:1px solid rgba(99,102,241,.2);font-weight:400}.code-block{background:var(--bg-tertiary);padding:14px 16px;border-radius:var(--radius-md);overflow-x:auto;margin:10px 0;font-family:var(--font-mono);font-size:12.5px;border:1px solid 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var(--border);font-weight:500}.data-table-scroll{overflow-x:auto;max-height:300px}.data-table{width:100%;border-collapse:collapse;font-size:12px;font-family:var(--font-mono)}.data-table th{padding:8px 12px;text-align:left;background:var(--bg-surface);color:var(--text-secondary);font-weight:600;border-bottom:1px solid var(--border);white-space:nowrap;position:sticky;top:0;z-index:1}.data-table td{padding:6px 12px;border-bottom:1px solid var(--border);color:var(--text-primary);max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.data-table tr:hover td{background:var(--bg-hover)}.row-num{color:var(--text-muted);font-size:11px;width:40px}.download-btn{display:inline-flex;align-items:center;gap:6px;margin-top:10px;padding:7px 16px;background:var(--gradient-accent);color:#fff;border-radius:var(--radius-md);font-size:13px;font-weight:500;text-decoration:none;transition:all .15s;box-shadow:0 2px 8px #6366f133}.download-btn:hover{opacity:.9;text-decoration:none;box-shadow:var(--shadow-accent);transform:translateY(-1px)}.chat-panel{position:relative}.chat-panel.drag-over .chat-messages,.chat-panel.drag-over .chat-input-container{pointer-events:none;filter:blur(1px)}.chat-drop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:200;background:#6366f11f;border:2px dashed var(--accent);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;pointer-events:none;animation:drop-fade-in .15s ease}@keyframes drop-fade-in{0%{opacity:0}to{opacity:1}}.chat-drop-content{display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--accent);text-align:center}.chat-drop-content svg{opacity:.85}.chat-drop-content p{font-size:18px;font-weight:600;margin:0;color:var(--accent)}.chat-drop-content span{font-size:13px;color:var(--text-muted)}.chat-input-container{padding:14px 24px 10px;border-top:1px solid var(--border);background:var(--bg-secondary)}.chat-input-wrapper{display:flex;align-items:flex-end;gap:8px;background:var(--bg-input);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:8px 14px;transition:all .18s ease;box-shadow:0 2px 8px #0003}.chat-input-wrapper:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-muted),0 2px 12px #00000040}.chat-input{flex:1;background:transparent;border:none;color:var(--text-primary);font-size:14px;line-height:1.5;resize:none;outline:none;font-family:var(--font-sans);max-height:200px}.chat-input::placeholder{color:var(--text-muted)}.chat-input-action,.chat-input-send{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all .12s}.chat-input-action:hover{color:var(--text-primary)}.chat-input-send{color:var(--accent);padding:6px;border-radius:var(--radius-md)}.chat-input-send:hover:not(:disabled){color:#fff;background:var(--gradient-accent);box-shadow:0 2px 8px #6366f140}.chat-input-send:disabled{color:var(--text-muted);opacity:.4;cursor:not-allowed}.chat-input-hint{display:block;text-align:center;font-size:11px;color:var(--text-muted);margin-top:5px;opacity:.7}.message.system.kind-progress .message-content{background:#6366f10f;border:1px solid rgba(99,102,241,.15);color:var(--text-accent);font-size:13px;text-align:left}.message.system.kind-progress .message-content strong{color:var(--text-accent)}.plan-approval-bar{display:flex;align-items:center;gap:8px;padding:9px 14px;margin-bottom:8px;background:linear-gradient(135deg,#6366f11a,#8b5cf60f);border:1px solid rgba(99,102,241,.25);border-radius:var(--radius-md);font-size:13px;box-shadow:0 0 0 1px #6366f10d 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