:root{--accent: #a465f8;--ink: #1d1d1f;--muted: #6e6e73;--bg: #ffffff;--panel: #f6f6f8;--bubble: #ececf0;--line: #e6e6ea;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--ink: #f2f2f5;--muted: #9a9aa2;--bg: #131316;--panel: #1a1a1f;--bubble: #26262e;--line: #2a2a32}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font:15px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}.boot,.empty{height:100%}.signin{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;text-align:center}.signin h1{margin:0;font-size:28px;letter-spacing:-.02em}.signin-mark{width:72px;height:72px}.muted{color:var(--muted);margin:0}.signin-button{margin-top:10px;min-height:44px}.fineprint{color:var(--muted);font-size:12px;max-width:320px;margin-top:8px}.app{height:100%;display:grid;grid-template-columns:280px 1fr}@media(max-width:720px){.app{grid-template-columns:1fr}}.sidebar{border-right:1px solid var(--line);background:var(--panel);overflow-y:auto}@media(max-width:720px){.sidebar{display:none}}.sidebar-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 16px;border-bottom:1px solid var(--line)}.who{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.linkish{background:none;border:0;color:var(--muted);font:inherit;font-size:13px;cursor:pointer;padding:0}.chat-row{display:flex;align-items:center;gap:10px;width:100%;padding:10px 16px;background:none;border:0;font:inherit;color:inherit;cursor:pointer;text-align:left}.chat-row:hover{background:color-mix(in srgb,var(--accent) 8%,transparent)}.chat-row.open{background:color-mix(in srgb,var(--accent) 16%,transparent)}.chat-icon{width:22px;text-align:center}.chat-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.unread{background:var(--accent);color:#fff;border-radius:999px;font-size:11px;padding:1px 7px;font-weight:600}.thread{display:flex;flex-direction:column;min-width:0;height:100%}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:8px}.bubble{max-width:min(68ch,78%);padding:9px 13px;border-radius:18px;white-space:pre-wrap;overflow-wrap:anywhere}.bubble.mine{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:6px}.bubble.theirs{align-self:flex-start;background:var(--bubble);border-bottom-left-radius:6px}.bubble.thinking{color:var(--muted)}.system{color:var(--muted);font-size:13px}.composer{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}.composer input{flex:1;padding:11px 14px;border-radius:999px;border:1px solid var(--line);background:var(--bg);color:inherit;font:inherit}.composer input:focus{outline:2px solid color-mix(in srgb,var(--accent) 50%,transparent);outline-offset:-1px}.composer button{padding:0 18px;border-radius:999px;border:0;background:var(--accent);color:#fff;font:inherit;font-weight:600;cursor:pointer}.composer button:disabled{opacity:.4;cursor:default}