:root{color:#20212b;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--accent:#6554b8;--accent-dark:#51419c;--muted:#666875;--line:#e7e7ed;background:#fff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline-offset:3px;outline:3px solid #a69adc}a{color:inherit;text-decoration:none}svg{flex-shrink:0}h1,h2,p{margin-top:0}input,select{background:#fff;border:1px solid #d8d9e1;border-radius:9px;width:100%;min-width:0;min-height:46px;padding:10px 12px;font-size:15px}input:hover,select:hover{border-color:#a9a6b9}input::placeholder,textarea::placeholder{color:#81838e;opacity:1}label{font-size:13px;font-weight:550;line-height:1.5;display:block}label input,label select{margin-top:7px;display:block}fieldset{border:0;min-width:0;margin:0;padding:0}fieldset:disabled{opacity:.65}.muted{color:var(--muted);font-size:14px;line-height:1.7}.fine-print,.input-hint{color:var(--muted);font-size:12px;line-height:1.6}.input-hint{margin:7px 0 0;font-weight:400;display:block}.field-error{color:#a73535;margin:0;font-size:13px;line-height:1.6}.primary-button,.secondary-button{border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:14px;min-height:44px;padding:11px 18px;font-size:14px;font-weight:550;display:inline-flex}.primary-button{background:var(--accent);color:#fff}.primary-button:hover:not(:disabled){background:var(--accent-dark)}.primary-button svg{width:17px;height:17px}.secondary-button{background:#fff;border-color:#d9d6e5}.secondary-button:hover{background:#f6f5fa}.quiet-button,.icon-button{color:#5e5e6c;white-space:nowrap;background:0 0;border:0;border-radius:8px;justify-content:center;align-items:center;gap:7px;min-height:40px;padding:9px 10px;font-size:13px;display:inline-flex}.icon-button{flex-shrink:0;width:40px;padding:10px}.quiet-button:hover:not(:disabled),.icon-button:hover:not(:disabled){color:#272333;background:#f3f2f7}.brand{letter-spacing:-.5px;white-space:nowrap;align-items:center;gap:6px;font-size:17px;font-weight:650;display:inline-flex}.brand-mark{width:32px;height:32px;color:var(--accent);background:#f1eefb;border-radius:9px;justify-content:center;align-items:center;margin-right:3px;display:inline-flex}.brand-light{color:#777584;font-weight:450}.app-shell{flex-direction:column;height:100dvh;min-height:400px;display:flex}.topbar{border-bottom:1px solid var(--line);background:#fff;flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;min-height:72px;padding:14px 28px;display:flex}.header-actions{align-items:center;gap:3px;display:flex}.profile-button{color:#51496c;background:#f6f5fa}.chat-main{flex-direction:column;flex:1;min-height:0;display:flex}.conversation{overscroll-behavior-y:contain;scrollbar-width:thin;scrollbar-color:#d9d6e5 transparent;flex:1;min-height:0;padding:20px 28px 28px;overflow-y:auto}.conversation.is-empty{flex-direction:column;display:flex}.welcome{text-align:center;width:100%;max-width:720px;margin:auto;padding:44px 0}.welcome-mark{width:48px;height:48px;color:var(--accent);background:#f5f2fd;border:1px solid #eee9fa;border-radius:15px;justify-content:center;align-items:center;margin-bottom:20px;display:inline-flex}.welcome-mark svg{width:27px;height:27px}.welcome h1{letter-spacing:-1.1px;margin:0 0 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h1{font-size:28px}.welcome>p{max-width:300px;font-size:14px}.suggestions{grid-template-columns:1fr;gap:9px;max-width:380px;margin:26px auto 0}.suggestions button{gap:3px;min-height:auto;padding:13px 30px 13px 15px}.suggestion-arrow{top:22px}.composer-area{padding:8px 14px max(10px, env(safe-area-inset-bottom))}.composer{border-radius:14px;padding:13px 13px 10px}.composer-tools select{max-width:180px;font-size:16px}.profile-date{display:none}.assistant-message{gap:9px}.assistant-avatar{width:27px;height:27px}.assistant-body{max-width:calc(100% - 36px)}.assistant-bubble{padding:11px 13px;font-size:15px;line-height:1.75}.user-bubble{padding:11px 14px}.exchange{padding-bottom:18px}.privacy-note{margin-top:9px}.profile-dialog,.chart-dialog{padding:22px 19px}.field-row{gap:11px}.service-banner{padding:8px 14px;font-size:12px}.auth-card{padding:28px 24px}.auth-card h1{font-size:27px}}@media (width<=360px){.brand-light{display:none}.topbar{padding-left:10px;padding-right:10px}.profile-dialog 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