:root{color-scheme:light;--bg:#ffffff;--text:#111111;--muted:#737373;--line:#e9e9e9;--soft:#f7f7f7}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled,textarea:disabled{cursor:not-allowed;opacity:.45}.shell{width:min(1120px,100%);margin:0 auto;padding:48px 28px}.topline{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;margin-bottom:56px}.eyebrow{margin:0 0 10px;color:var(--muted);font-size:12px;letter-spacing:.08em;text-transform:uppercase}h1,h2,p{margin:0}h1{font-size:clamp(46px,9vw,112px);line-height:.88;letter-spacing:-.07em;font-weight:650}h2{font-size:clamp(30px,5vw,64px);line-height:.95;letter-spacing:-.05em;font-weight:620}.security-note{max-width:280px;color:var(--muted);font-size:14px;line-height:1.45;text-align:right}.workspace{display:grid;grid-template-columns:280px minmax(0,1fr);grid-gap:56px;gap:56px;align-items:start}.thread-list{display:grid;grid-gap:2px;gap:2px}.thread-row{width:100%;display:flex;justify-content:space-between;gap:16px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--text);padding:14px 0;text-align:left}.thread-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.thread-row-active span{font-weight:650}.status{color:var(--muted);font-size:12px;white-space:nowrap}.status-blocked,.status-needs-steer{color:#111}.conversation{display:grid;grid-gap:28px;gap:28px}.thread-context{display:grid;grid-gap:16px;gap:16px;border-bottom:1px solid var(--line);padding-bottom:28px}.reply>p:last-child,.thread-context>p:last-child{color:var(--muted);font-size:18px;line-height:1.6;max-width:760px;white-space:pre-wrap}.actions{display:flex;flex-wrap:wrap;gap:10px}.actions button,.composer button{border:1px solid var(--text);background:var(--text);color:var(--bg);padding:10px 14px}.actions button+button{background:var(--bg);color:var(--text)}.composer{display:grid;grid-gap:12px;gap:12px}.composer label{color:var(--muted);font-size:13px}textarea{width:100%;min-height:180px;resize:vertical;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:14px 0;background:transparent;color:var(--text);outline:none;line-height:1.55}textarea:focus{border-bottom-color:var(--text)}.composer-footer{display:flex;justify-content:space-between;gap:16px;align-items:center;min-height:40px}.composer-footer span{color:var(--muted);font-size:13px}.reply{display:grid;grid-gap:12px;gap:12px;background:var(--soft);padding:20px}.signin-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.signin-card{width:min(520px,100%);border:1px solid var(--line);padding:32px}.signin-card h1{font-size:clamp(40px,8vw,72px)}.signin-card p,.signin-card small{color:var(--muted);line-height:1.55}.signin-form{display:grid;grid-gap:12px;gap:12px;margin-top:22px}.signin-form label{color:var(--muted);font-size:13px}.signin-form input{width:100%;border:0;border-bottom:1px solid var(--line);padding:12px 0;outline:none}.signin-form input:focus{border-bottom-color:var(--text)}.signin-button{display:inline-flex;justify-self:start;margin:8px 0 0;border:1px solid var(--text);padding:10px 14px;color:var(--bg);background:var(--text);text-decoration:none}.signin-error{display:block;margin-top:14px;color:#9f1d1d}@media (max-width:760px){.shell{padding:28px 18px}.topline{display:grid;margin-bottom:36px}.security-note{max-width:none;text-align:left}.workspace{grid-template-columns:1fr;gap:32px}.thread-list{border-top:1px solid var(--line)}}