:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--bg-color: #1e1e1e;--sidebar-color: #252526;--chat-bg: #1e1e1e;--input-bg: #3c3c3c;--text-color: #d4d4d4;--accent-color: #007acc;--user-msg: #0e639c;--ai-msg: #333333}body{margin:0;font-family:Segoe UI,sans-serif;background-color:var(--bg-color);color:var(--text-color)}.app-container{display:flex;height:100vh;width:100vw;overflow:hidden}.sidebar{width:300px;background-color:var(--sidebar-color);padding:20px;border-right:1px solid #333;display:flex;flex-direction:column;gap:20px}.sidebar h2{margin-top:0;color:#fff}.upload-section{display:flex;flex-direction:column;gap:10px;padding-bottom:20px;border-bottom:1px solid #444}.docs-list ul{list-style:none;padding:0}.docs-list li{padding:5px 0;font-size:.9em;color:#aaa}.chat-container{flex:1;display:flex;flex-direction:column;background-color:var(--chat-bg)}.messages-area{flex:1;padding:30px;overflow-y:auto;display:flex;flex-direction:column;gap:15px}.message-bubble{max-width:70%;padding:15px;border-radius:10px;line-height:1.5}.message-bubble.user{align-self:flex-end;background-color:var(--user-msg);color:#fff;border-bottom-right-radius:2px}.message-bubble.assistant{align-self:flex-start;background-color:var(--ai-msg);color:#ddd;border-bottom-left-radius:2px}.message-bubble.error{align-self:center;background-color:#a31515;color:#fff}.input-area{padding:20px;background-color:var(--sidebar-color);display:flex;gap:10px}.input-area input{flex:1;padding:15px;border-radius:5px;border:none;background-color:var(--input-bg);color:#fff;font-size:1em;outline:none}.input-area button,.upload-section button{padding:10px 20px;border:none;border-radius:5px;background-color:var(--accent-color);color:#fff;cursor:pointer;font-weight:700}.input-area button:hover{background-color:#0062a3}