:root{color:#172033;background:#f4f0e8;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:#f4f0e8;min-width:320px;min-height:100vh;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0}button:disabled{cursor:not-allowed;opacity:.6}.app-shell{width:min(1240px,100% - 28px);margin:0 auto;padding:24px 0}.demo-layout{grid-template-columns:300px minmax(0,1fr);gap:16px;min-height:calc(100vh - 48px);display:grid}.topic-sidebar,.chat-panel{background:#ffffffeb;border:1px solid #e1d8ca;border-radius:26px;box-shadow:0 24px 70px #3b302317}.topic-sidebar{grid-template-rows:auto auto 1fr auto;gap:16px;min-height:100%;padding:18px;display:grid}.sidebar-brand{gap:10px;display:grid}h1,h2,p{margin-top:0}h1{color:#0f172a;letter-spacing:-.05em;margin-bottom:0;font-size:30px}h2{color:#0f172a;letter-spacing:-.03em;margin-bottom:4px;font-size:22px}.status-badge{color:#475569;background:#f8fafc;border:1px solid #e2e8f0;border-radius:999px;width:fit-content;padding:8px 11px;font-size:13px;font-weight:800}.status-badge.warning{color:#9a3412;background:#ffedd5;border-color:#fed7aa}.status-badge.success{color:#166534;background:#dcfce7;border-color:#bbf7d0}.status-badge.active{color:#1d4ed8;background:#dbeafe;border-color:#bfdbfe}.primary-button,.secondary-button,.ghost-button{border-radius:14px;padding:10px 13px;font-weight:850}.primary-button{color:#fff;background:#111827}.secondary-button{color:#111827;background:#eee7dc}.ghost-button{color:#334155;background:#fff;border:1px solid #e1d8ca}.full-width{width:100%}.topic-list{align-content:start;gap:8px;display:grid;overflow:auto}.topic-item{color:#243044;text-align:left;background:0 0;border-radius:16px;gap:4px;width:100%;padding:12px;display:grid}.topic-item:hover,.topic-item.active{background:#f4efe6}.topic-item span{text-overflow:ellipsis;white-space:nowrap;font-weight:850;overflow:hidden}.topic-item small{color:#7a8491}.connection-card{background:#f8f3eb;border-radius:18px;gap:12px;padding:14px;display:grid}.connection-card p{overflow-wrap:anywhere;color:#647080;margin:4px 0 0;font-size:13px}.chat-panel{grid-template-rows:auto auto 1fr auto;min-height:100%;display:grid;overflow:hidden}.chat-topbar,.settings-row,.composer{padding:18px}.chat-topbar{border-bottom:1px solid #eee6dc;justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.chat-topbar p{color:#697586;margin:0;font-size:14px}.topbar-actions,.composer-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.settings-row{border-bottom:1px solid #eee6dc;grid-template-columns:minmax(0,1fr) minmax(180px,260px);gap:12px;display:grid}.settings-row label{color:#334155;text-transform:uppercase;letter-spacing:.06em;gap:6px;font-size:12px;font-weight:850;display:grid}input,select,textarea{color:#111827;background:#fffdfa;border:1px solid #ded5c9;border-radius:14px;outline:none;width:100%}input,select{height:42px;padding:0 12px}textarea{resize:vertical;min-height:92px;padding:13px 14px}input:focus,select:focus,textarea:focus{border-color:#111827;box-shadow:0 0 0 3px #1118271a}.chat-window{background:#fbf8f3;align-content:start;gap:12px;min-height:360px;padding:18px;display:grid;overflow:auto}.empty-state{color:#647080;text-align:center;place-items:center;min-height:260px;display:grid}.empty-state strong{color:#111827;font-size:18px;display:block}.empty-state p{margin:8px 0 0}.message{white-space:pre-wrap;overflow-wrap:anywhere;border-radius:18px;max-width:min(74%,680px);padding:13px 15px;line-height:1.55}.message.user{color:#fff;background:#111827;border-bottom-right-radius:6px;justify-self:end}.message.assistant{color:#172033;background:#fff;border:1px solid #e4dbd0;border-bottom-left-radius:6px;justify-self:start}.composer{border-top:1px solid #eee6dc;gap:10px;display:grid}.alert{color:#9a3412;background:#ffedd5;border:1px solid #fed7aa;border-radius:14px;margin:0;padding:12px 14px;font-size:14px}@media (width<=860px){.app-shell{width:min(100% - 20px,680px);padding:10px 0}.demo-layout{grid-template-columns:1fr;min-height:auto}.topic-sidebar{min-height:auto}.topic-list{max-height:220px}.chat-topbar,.settings-row{grid-template-columns:1fr;display:grid}.topbar-actions,.composer-actions{justify-content:flex-start}.message{max-width:92%}}