: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{--primary: #2563eb;--bg-chat: #ffffff;--text-main: #0f172a;--text-light: #64748b;--border: #e2e8f0;--sidebar-width: 0px}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:Inter,system-ui,sans-serif;height:100%;overflow:hidden}.app-container{display:flex;width:100vw;height:100vh;background:var(--bg-chat)}.chat-interface{flex:1;display:flex;flex-direction:column;height:100%;max-width:100%;background:#fff}.navbar{height:60px;padding:0 30px;border-bottom:1px solid var(--border);display:flex;align-items:center;background:#fff;z-index:10}.brand{display:flex;align-items:center;gap:12px}.logo-box{background:var(--primary);width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff}.brand-text h1{font-size:1.1rem;margin:0;color:var(--text-main)}.brand-text p{display:none}.chat-window{flex:1;overflow-y:auto;padding:20px 20%;display:flex;flex-direction:column;gap:20px}@media(max-width:1000px){.chat-window{padding:20px 5%}}.message-row{display:flex;gap:15px;max-width:100%;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.message-row.user{justify-content:flex-end}.avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.ai .avatar{background:#f1f5f9;color:var(--primary)}.user .avatar{background:var(--primary);color:#fff}.message-content{display:flex;flex-direction:column;gap:5px;max-width:70%}@media(max-width:768px){.message-content{max-width:85%}}.bubble{padding:15px 20px;border-radius:12px;line-height:1.6;font-size:1rem}.ai .bubble{background:#f8fafc;color:var(--text-main);border:1px solid var(--border);border-top-left-radius:2px}.user .bubble{background:var(--primary);color:#fff;border-top-right-radius:2px}.bubble p{margin:0 0 8px}.bubble p:last-child{margin:0}.sources-list{margin-top:8px}.source-tag.link{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #cbd5e1;padding:6px 12px;border-radius:20px;font-size:.85rem;color:var(--text-light);text-decoration:none;transition:all .2s;cursor:pointer}.source-tag.link:hover{border-color:var(--primary);color:var(--primary);background:#eff6ff}.input-area{padding:20px 20%;border-top:1px solid var(--border);background:#fff}@media(max-width:1000px){.input-area{padding:20px 5%}}.input-box{background:#f1f5f9;border-radius:12px;padding:10px 15px;display:flex;gap:10px;align-items:center}.input-box:focus-within{background:#fff;box-shadow:0 0 0 2px var(--primary)}.input-box input{flex:1;border:none;background:transparent;outline:none;font-size:1rem}.send-btn{background:var(--primary);color:#fff;border:none;width:40px;height:40px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center}.send-btn:disabled{background:#cbd5e1}.disclaimer{text-align:center;font-size:.75rem;color:#94a3b8;margin-top:10px}.thinking{padding:10px 20px;display:flex;gap:4px}.dot{width:6px;height:6px;background:#94a3b8;border-radius:50%;animation:bounce 1.4s infinite}.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}