:root{--bg:#f8f9fb;--white:#fff;--ink:#172b4d;--muted:#526175;--line:#e4e9f0;--accent:#2457a6;--accent-dark:#1d478a;--accent-soft:#eef3fa;--green:#188865;--radius:14px}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;font-size:14px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}a{color:inherit;text-decoration:none}button{color:inherit}h1,h2,h3,p{margin:0}h1{letter-spacing:-1px;font-size:29px;font-weight:650;line-height:1.3}h2{letter-spacing:-.4px;font-size:19px;font-weight:650}h3{font-size:16px;font-weight:600}p{line-height:1.7}small{font-size:12px}svg{flex-shrink:0}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:3px;outline:3px solid 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p{color:#526175;max-width:730px;font-size:11px}.setup-hint code{color:#526175;background:#f8f9fb;border-radius:4px;padding:3px}.upload-button{cursor:pointer}.upload-button input,.upload-zone input{opacity:0;width:1px;height:1px;position:absolute}.upload-zone{cursor:pointer;text-align:center;background:#f8f9fb;border:1px dashed #eef3fa;border-radius:12px;flex-direction:column;align-items:center;gap:10px;padding:35px;display:flex}.upload-zone:focus-within{outline:3px solid #c9d6e8}.upload-circle{color:#526175;background:#f8f9fb;border-radius:13px;place-items:center;width:57px;height:57px;margin-bottom:6px;display:grid}.upload-zone strong{font-size:13px}.upload-zone p{color:#526175;font-size:11px}.upload-zone small{color:#526175;font-size:9px}.file-heading{margin-top:30px}.file-heading h2{align-items:center;gap:8px;display:flex}.count{color:#526175;background:#f8f9fb;border-radius:4px;padding:2px 5px;font-size:9px;font-weight:500}.search-input{border:1px solid 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var(--line);z-index:5;background:#fff;border-radius:8px;width:260px;max-height:280px;padding:12px;position:absolute;top:25px;left:0;overflow:auto;box-shadow:0 10px 25px #172b4d12}.file-picker label{align-items:center;gap:8px;padding:5px 0;font-size:10px;display:flex}.file-picker input{accent-color:var(--accent)}.chat-controls>.icon-button{margin-left:auto}.chat-thread{flex:1;min-height:300px;padding:27px 0 32px}.chat-welcome{text-align:center;padding:45px 20px 35px}.chat-symbol{color:#526175;background:linear-gradient(135deg,#eef3fa,#f8f9fb);border-radius:19px;place-items:center;width:62px;height:62px;margin:0 auto 23px;display:grid}.chat-welcome h2{letter-spacing:-.8px;font-size:25px}.chat-welcome>p{color:#526175;margin-top:11px;font-size:12px}.chat-examples{flex-direction:column;gap:9px;max-width:560px;margin:25px auto 0;display:flex}.chat-examples button{border:1px solid var(--line);color:#526175;text-align:left;background:#fff;border-radius:9px;justify-content:space-between;gap:20px;padding:13px 15px;font-size:11px;display:flex}.chat-examples button:hover{color:var(--accent);border-color:#c9d6e8}.composer-wrap{z-index:3;background:linear-gradient(#f8f9fc00,#f8f9fc 14px);padding-top:15px;position:sticky;bottom:0}.composer{background:#fff;border:1px solid #eef3fa;border-radius:12px;padding:15px 17px 10px;box-shadow:0 7px 25px #52617508}.composer:focus-within{border-color:#2457a6;box-shadow:0 0 0 3px #2457a608}.composer textarea{resize:vertical;color:#526175;background:0 0;border:0;width:100%;min-height:48px;max-height:180px;font-size:12px;line-height:1.6;outline:none!important}.composer textarea::placeholder{color:#526175}.composer-bottom{justify-content:space-between;align-items:center;padding-top:8px;display:flex}.composer-bottom>span{color:#526175;align-items:center;gap:5px;font-size:9px;display:flex}.send-button{background:var(--accent);color:#fff;border:0;border-radius:8px;place-items:center;width:33px;height:33px;display:grid}.composer-wrap>small{color:#526175;text-align:center;margin-top:12px;font-size:9px;display:block}.message{gap:13px;margin-bottom:29px;display:flex}.message-avatar{background:var(--accent-soft);color:#526175;border-radius:9px;flex-shrink:0;place-items:center;width:32px;height:32px;font-size:12px;font-weight:600;display:grid}.message.user .message-avatar{color:#526175;background:#eaeef4}.message-body{flex:1;min-width:0}.message-name{align-items:center;gap:8px;min-height:32px;font-size:12px;font-weight:600;display:flex}.message-body>p{color:#526175;white-space:pre-wrap;font-size:12px}.ai-label{color:#526175;border:1px solid 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