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auto;gap:16px;overflow:hidden}.sidebar-scroll-region{min-height:0;min-width:0;display:flex;flex-direction:column;gap:16px;overflow-y:auto;overflow-x:hidden;padding-right:6px;overscroll-behavior:contain;scrollbar-gutter:stable;scrollbar-width:thin;scrollbar-color:rgba(114,119,170,.5) rgba(114,119,170,.08)}.sidebar-scroll-region::-webkit-scrollbar{width:10px}.sidebar-scroll-region::-webkit-scrollbar-track{background:#7277aa14}.sidebar-scroll-region::-webkit-scrollbar-thumb{border:2px solid transparent;border-radius:999px;background:#7277aa80;background-clip:padding-box}.sidebar-brand{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}.sidebar-brand-copy{min-width:0;margin-right:32px}.sidebar-brand h1{margin:0;font-size:1.7rem;line-height:1.08}.sidebar-brand p{margin:4px 0 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1rem}.message-placeholder-title{font-weight:700;color:var(--brand-dark)}.message-placeholder-detail{color:#545972eb;margin-bottom:.8rem}.message-placeholder-shimmer{position:relative;width:min(220px,78%);height:10px;border-radius:999px;overflow:hidden;background:#7a80b81f}.message-placeholder-shimmer:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;transform:translate(-100%);background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.2) 24%,rgba(122,128,184,.45) 50%,rgba(255,255,255,.2) 76%,transparent 100%);animation:assistant-placeholder-sweep 1.3s ease-in-out infinite}.message-list{margin:0 0 1rem;padding-left:1.2rem}.message-list li+li{margin-top:.38rem}.message-body code{padding:.1rem .35rem;border-radius:6px;background:#5c629714;font-size:.94em}.message-meta{margin:7px 4px 0;color:var(--muted);font-size:.82rem}.message-meta-user{text-align:right}@keyframes 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