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0;font-size:14px}.message-list{flex-direction:column;gap:26px;max-width:980px;min-height:100%;margin:0 auto;padding-left:23px;padding-right:28px;display:flex}.message-bubble{max-width:min(650px,86%);font-size:16px;line-height:1.5}.message-bubble__content{white-space:normal}.message-bubble__content p{margin:0 0 16px}.message-bubble__content p:last-child{margin-bottom:0}.message-bubble__content .katex-display{margin:12px 0;padding-bottom:4px;overflow:auto hidden}.message-bubble--enter{animation:.22s ease-out messageFadeIn}.message-bubble--user{border-radius:var(--radius-lg);background:var(--color-surface-muted);align-self:flex-end;padding:13px 18px}.message-bubble--assistant{align-self:flex-start;max-width:760px;margin-left:0;animation:.32s ease-out assistantTextReveal}.empty-chat{text-align:center;max-width:480px;margin:16vh auto 0}.empty-chat h2{margin:0 0 8px;font-size:24px}.empty-chat p{color:var(--color-muted);margin:0;font-size:15px;line-height:1.5}.chat-composer{border-top:1px 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