:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}*{box-sizing:border-box;margin:0;padding:0}body{color:#fff;background:#0f0f0f;font-family:sans-serif}.app{height:100vh;display:flex;overflow:hidden}.sidebar{background:#111;border-right:1px solid #222;flex-direction:column;flex-shrink:0;width:220px;display:flex}.sidebar-header{border-bottom:1px solid #222;padding:16px}.logo{color:#fff;font-size:16px;font-weight:600}.logo-sub{color:#555;margin-top:2px;font-size:11px}.sidebar-new{padding:10px}.btn-new{color:#fff;cursor:pointer;text-align:left;background:#7c3aed;border:none;border-radius:8px;width:100%;padding:9px 12px;font-size:13px}.btn-new:hover{background:#6d28d9}.sidebar-projects{flex:1;padding:8px;overflow-y:auto}.projects-label{color:#444;letter-spacing:.05em;margin-bottom:4px;padding:4px 8px;font-size:10px}.project-item{color:#777;cursor:pointer;white-space:nowrap;text-overflow:ellipsis;border-radius:6px;margin-bottom:2px;padding:8px 10px;font-size:13px;overflow:hidden}.project-item:hover{color:#ddd;background:#1a1a1a}.project-item.active{color:#fff;background:#1a1a1a}.sidebar-footer{border-top:1px solid #222;align-items:center;gap:10px;padding:12px;display:flex}.user-avatar{background:#7c3aed;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;font-size:12px;font-weight:600;display:flex}.user-name{color:#ddd;font-size:13px}.user-plan{color:#555;font-size:10px}.chat{flex-direction:column;flex:1;display:flex;overflow:hidden}.chat-header{color:#aaa;border-bottom:1px solid #222;justify-content:space-between;align-items:center;padding:12px 20px;font-size:13px;display:flex}.btn-export{color:#aaa;cursor:pointer;background:#1a1a1a;border:1px solid #333;border-radius:6px;padding:4px 12px;font-size:12px}.btn-export:hover{color:#fff;background:#222}.chat-messages{flex-direction:column;flex:1;gap:16px;padding:20px;display:flex;overflow-y:auto}.chat-empty{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;height:100%;display:flex}.empty-icon{font-size:40px}.empty-title{color:#fff;font-size:20px;font-weight:600}.empty-sub{color:#555;font-size:14px}.message{align-items:flex-start;gap:10px;display:flex}.message.user{flex-direction:row-reverse}.message-avatar{background:#7c3aed;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:11px;font-weight:600;display:flex}.message.user .message-avatar{color:#aaa;background:#333}.message-bubble{background:#1a1a1a;border:1px solid #2a2a2a;border-radius:12px;max-width:75%;padding:10px 14px}.message.user .message-bubble{background:#1e1040;border-color:#7c3aed44}.message-text{color:#ddd;white-space:pre-wrap;font-family:sans-serif;font-size:13px;line-height:1.6}.typing{color:#666;font-size:13px}.chat-input{border-top:1px solid #222;align-items:flex-end;gap:10px;padding:12px 20px;display:flex}.chat-input textarea{color:#fff;resize:none;background:#1a1a1a;border:1px solid #333;border-radius:10px;flex:1;padding:10px 14px;font-family:sans-serif;font-size:14px;line-height:1.5}.chat-input textarea:focus{border-color:#7c3aed;outline:none}.btn-send{color:#fff;cursor:pointer;background:#7c3aed;border:none;border-radius:8px;flex-shrink:0;width:40px;height:40px;font-size:18px}.btn-send:hover{background:#6d28d9}.btn-send:disabled{cursor:not-allowed;background:#333}