:root{--ground:#334e58;--ground-line:#ffffff26;--on-ground:#fff;--on-ground-muted:#fffc;--on-ground-faint:#fff9;--accent:#e10812;--accent-hover:#c70813;--accent-border:#d30a15;--card:#fff;--card-text:#333;--ink:#111;--ink-title:#1f2933;--muted:#4a5565;--muted-2:#5b6e78;--muted-3:#6b7280;--line:#d0d0d0;--line-2:#c9cace;--line-3:#e3e3e3;--sidebar:#f5f5f5;--focus:#2f80ed;--link:#0072b1;--link-hover:#005f94;--danger:#b3261e;--ok-bg:#e7f6ec;--ok-fg:#1e7a3c;--err-bg:#fdecec;--err-fg:#b3261e;--radius-card:10px;--radius-pill:20px;--font:"Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font);color:var(--ink);background:var(--ground);-webkit-font-smoothing:antialiased;margin:0;font-size:15px;line-height:1.5}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}a{color:var(--link);font-weight:700;text-decoration:underline}a:hover{color:var(--link-hover)}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.shell{background:var(--ground);height:100%;min-height:100dvh;display:flex}.shell__main{flex-direction:column;flex:auto;align-items:center;min-width:0;padding:18px 24px 20px;display:flex;position:relative}.shell__logo{width:100px;height:auto;position:absolute;top:14px;right:20px}.column{width:100%;max-width:820px}.sidebar{background:var(--sidebar);border-right:1px solid var(--line-3);flex-direction:column;flex:0 0 300px;width:300px;height:100dvh;display:flex;position:sticky;top:0}.sidebar__top{flex-direction:column;gap:12px;padding:16px 16px 12px;display:flex}.sidebar__heading{letter-spacing:.06em;text-transform:uppercase;color:var(--muted-3);padding:4px 4px 0;font-size:12px;font-weight:600}.sidebar__list{flex-direction:column;flex:auto;gap:4px;padding:0 12px 12px;display:flex;overflow-y:auto}.sidebar__bottom{border-top:1px solid var(--line-3);justify-content:space-between;align-items:center;gap:8px;padding:12px 16px;display:flex}.sidebar__email{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.sidebar__more{text-align:center;padding:10px 0 0}.sidebar__empty{color:var(--muted-3);padding:8px 4px;font-size:13px}.session-item{border-radius:var(--radius-card);text-align:left;background:0 0;border:1px solid #0000;flex-direction:column;gap:3px;width:100%;padding:10px 12px;display:flex}.session-item:hover{background:#fff}.session-item--active{border-color:var(--line);background:#fff}.session-item__row{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.session-item__title{color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.session-item__when{color:var(--muted-3);white-space:nowrap;font-size:11.5px}.session-item__preview{color:var(--muted-2);white-space:nowrap;text-overflow:ellipsis;font-size:12.5px;overflow:hidden}.btn{white-space:nowrap;border:1px solid #0000;border-radius:4px;justify-content:center;align-items:center;gap:8px;height:44px;padding:0 16px;font-size:15px;font-weight:500;display:inline-flex}.btn:disabled{opacity:.6;cursor:default}.btn--primary{color:#fff;border-color:var(--accent-border);background:#e10b17}.btn--primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn--block{width:100%}.btn--quiet{border-color:var(--line-2);color:var(--muted);background:0 0}.btn--quiet:hover:not(:disabled){background:#f6f8fa}.btn--pill{color:var(--card-text);border:1px solid var(--line);border-radius:var(--radius-pill);background:#fff;font-size:14px}.btn--pill:hover:not(:disabled){background:#f0f0f0}.btn--ghost{color:#fff;background:0 0;border:1px solid #ffffff80;border-radius:18px;height:36px;padding:0 14px;font-size:14px}.btn--ghost:hover:not(:disabled){background:#ffffff1f}.btn--icon{color:#fff;background:0 0;border:none;border-radius:22px;width:44px;height:44px;padding:0}.btn--icon:hover:not(:disabled){background:#ffffff1f}.btn--text{color:var(--muted);background:0 0;border:none;height:auto;padding:6px;font-size:13px}.btn--text:hover:not(:disabled){color:var(--ink)}.btn--danger-text{color:var(--danger);background:0 0;border:none;height:auto;padding:6px 0;font-size:14px}.link-btn{color:var(--link);background:0 0;border:none;padding:0;font-size:14px;font-weight:700;text-decoration:underline}.link-btn:hover{color:var(--link-hover)}.chat{flex-direction:column;flex:auto;align-items:center;width:100%;min-height:0;display:flex}.chat__header{justify-content:space-between;align-items:center;gap:16px;min-height:36px;padding-right:120px;display:flex}.chat__title{color:var(--on-ground-muted);white-space:nowrap;text-overflow:ellipsis;font-size:15px;overflow:hidden}.chat__scroll{flex:auto;justify-content:center;width:100%;min-height:0;display:flex;overflow-y:auto}.chat__messages{flex-direction:column;gap:18px;padding:24px 0 16px;display:flex}.chat__empty{flex-direction:column;flex:auto;justify-content:center;align-items:center;gap:44px;display:flex}.chat__footer{justify-content:center;width:100%;padding-top:8px;display:flex}.greeting{text-align:center;flex-direction:column;align-items:center;gap:12px;display:flex}.greeting__avatar{object-fit:cover;border-radius:50%;width:100px;height:100px}.greeting__title{color:var(--on-ground);font-size:22px;font-weight:600}.greeting__sub{color:#ffffffd9;font-size:16px}.examples{flex-direction:column;align-items:center;gap:10px;display:flex}.examples__label{color:var(--on-ground-muted);font-size:14px;font-weight:600}.examples__row{gap:12px;width:100%;display:flex}.examples__pill{min-height:60px;color:var(--card-text);border:1px solid var(--line);border-radius:var(--radius-pill);text-align:center;background:#fff;flex:1 1 0;padding:8px 14px;font-size:14px;font-weight:500}.examples__pill:hover{background:#f0f0f0}.msg{flex-direction:column;gap:8px;max-width:720px;display:flex}.msg--user{align-self:flex-end;max-width:560px}.msg--assistant{align-self:flex-start}.msg__bubble{background:var(--accent);color:#fff;border-radius:var(--radius-card);white-space:pre-wrap;overflow-wrap:anywhere;padding:12px 16px;line-height:1.5}.msg__row{align-items:flex-start;gap:12px;display:flex}.msg__avatar{object-fit:cover;border-radius:50%;flex:none;width:48px;height:48px}.msg__card{background:var(--card);color:var(--card-text);border-radius:var(--radius-card);overflow-wrap:anywhere;min-width:0;padding:16px;line-height:1.55}.msg__card--error{background:#fff4f4;border:1px solid #f3c2c2}.msg__card--streaming{min-height:52px}.msg__status{color:#fff;background:#ffffff24;border-radius:16px;align-self:flex-start;align-items:center;gap:8px;padding:5px 12px 5px 8px;font-size:13px;display:inline-flex}.msg__body{flex-direction:column;gap:8px;min-width:0;display:flex}.spinner{border:2px solid #ffffff59;border-top-color:#fff;border-radius:50%;width:12px;height:12px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.md p{margin:0 0 10px}.md p:last-child{margin-bottom:0}.md ul,.md ol{margin:6px 0 0;padding-left:20px}.md li{margin:0 0 8px}.md li:last-child{margin-bottom:0}.md h1,.md h2,.md h3,.md h4{margin:12px 0 6px;font-size:1.05em}.md table{border-collapse:collapse;margin:8px 0;font-size:14px}.md th,.md td{border:1px solid var(--line-3);text-align:left;padding:4px 8px}.md code{background:#f6f8fa;border-radius:4px;padding:1px 4px;font-size:90%}.md pre{background:#f6f8fa;border-radius:4px;padding:8px;overflow-x:auto}.md a{color:var(--link)}.feedback{align-items:center;gap:6px;padding-left:60px;display:flex}.feedback__btn{color:#fff;background:0 0;border:1px solid #ffffff73;border-radius:16px;justify-content:center;align-items:center;width:32px;height:32px;display:inline-flex}.feedback__btn:hover:not(:disabled){background:#ffffff26}.feedback__btn--selected{color:var(--ground);background:#fff}.feedback__thanks{color:var(--on-ground-muted);margin-left:6px;font-size:13px}.feedback__form{border-radius:var(--radius-card);background:#fff;flex-direction:column;gap:10px;max-width:520px;margin-left:60px;padding:12px 14px;display:flex}.feedback__label{color:var(--muted);font-size:13px}.feedback__textarea{resize:none;border:1px solid var(--line-2);border-radius:4px;width:100%;height:72px;padding:8px 10px}.feedback__actions{justify-content:flex-end;gap:8px;display:flex}.composer{background:#fff;border-radius:26px;align-items:center;gap:8px;width:100%;padding:6px 6px 6px 18px;display:flex;box-shadow:0 2px 8px #0000002e}.composer--disabled{background:#f0f0f0}.composer__input{min-width:0;height:40px;color:var(--ink);background:0 0;border:none;outline:none;flex:auto;font-size:16px}.composer__send{background:var(--accent);color:#fff;border:none;border-radius:50%;flex:none;justify-content:center;align-items:center;width:40px;height:40px;display:inline-flex}.composer__send:hover:not(:disabled){background:var(--accent-hover)}.composer__send:disabled{cursor:default;background:#b9bec2}.auth{justify-content:center;align-items:safe center;min-height:100dvh;padding:24px 16px;display:flex;position:relative;overflow-y:auto}.auth-card{background:#fff;border:1px solid #d8d8d8;border-radius:6px;flex-direction:column;gap:12px;width:100%;max-width:420px;padding:clamp(20px,5vh,36px) clamp(18px,5vw,30px) clamp(18px,4vh,28px);display:flex;box-shadow:0 2px 6px #00000014}.auth-card__icon{align-self:center;width:44px;height:44px}.auth-card__title{color:var(--ink-title);text-align:center;margin:0;font-size:22px;font-weight:400;line-height:1.25}.auth-card__note{color:var(--muted);text-align:center;max-width:320px;margin:-4px auto 4px;font-size:14px;line-height:1.45}.auth-card__links{justify-content:space-between;align-items:flex-end;gap:12px;margin-top:2px;display:flex}.auth-card__hint{text-align:right;color:var(--muted);font-size:13px;line-height:1.3}.auth-card__footer{text-align:center;color:var(--muted);margin-top:10px;font-size:14px}.field{flex-direction:column;gap:6px;display:flex}.field__label{color:var(--muted);font-size:13px;font-weight:500}.field__input{border:1px solid var(--line-2);height:44px;color:var(--ink);background:#fff;border-radius:4px;width:100%;padding:8px 12px;font-size:15px}.field__input:focus{border-color:var(--focus);box-shadow:0 0 0 1px var(--focus);outline:none}.field__input::placeholder{color:#8b95a1}.alert{border-radius:4px;padding:10px 12px;font-size:14px;line-height:1.4}.alert--success{background:var(--ok-bg);color:var(--ok-fg)}.alert--error{background:var(--err-bg);color:var(--err-fg)}.alert--info{color:#22313a;background:#eef2f4}.form{flex-direction:column;gap:12px;display:flex}.dialog{border-radius:var(--radius-card);width:min(520px,100vw - 32px);color:var(--ink);border:none;padding:24px;box-shadow:0 12px 40px #00000059}.dialog::backdrop{background:#141e248c}.dialog__title{color:var(--ink-title);margin:0 0 12px;font-size:20px;font-weight:600}.dialog__text{color:var(--muted);margin:0 0 14px;font-size:14px;line-height:1.45}.dialog__row{gap:8px;display:flex}.dialog__url{border:1px solid var(--line-2);white-space:nowrap;text-overflow:ellipsis;background:#f6f8fa;border-radius:4px;flex:auto;align-items:center;min-width:0;height:44px;padding:0 12px;font-family:ui-monospace,Cascadia Mono,Menlo,monospace;font-size:13px;display:flex;overflow:hidden}.dialog__actions{justify-content:space-between;align-items:center;margin-top:18px;display:flex}.shared__header{border-bottom:1px solid var(--ground-line);justify-content:space-between;align-items:center;gap:16px;width:100%;padding:14px 24px;display:flex}.shared__brand{align-items:center;gap:16px;min-width:0;display:flex}.shared__kicker{letter-spacing:.06em;text-transform:uppercase;color:#ffffffb3;font-size:12px;font-weight:600}.shared__title{color:#fff;white-space:nowrap;text-overflow:ellipsis;font-size:16px;overflow:hidden}.shared__date{color:#fff9}.shared__cta{background:var(--accent);color:#fff;white-space:nowrap;border:none;border-radius:20px;align-items:center;height:40px;padding:0 18px;font-weight:500;text-decoration:none;display:inline-flex}.shared__footer{color:#fff9;text-align:center;border-top:1px solid var(--ground-line);width:100%;padding:14px 24px;font-size:13px}.topbar{grid-template-columns:1fr auto 1fr;place-items:center start;width:100%;padding:10px 4px 6px;display:grid}.topbar__actions{justify-self:end;align-items:center;display:flex}.topbar__logo{justify-self:center;width:80px;height:auto}.drawer{background:var(--sidebar);border:none;width:min(320px,85vw);height:100dvh;max-height:100dvh;margin:0;padding:0}.drawer::backdrop{background:#141e2473}.drawer .sidebar{flex-basis:auto;width:100%;height:100%}.center-note{color:var(--on-ground-muted);text-align:center;padding:40px 16px}.center-note a{color:#fff}@media (width<=767px){.shell__main{padding:8px 12px 16px}.chat__header{padding-right:0}.msg__avatar{width:36px;height:36px}.feedback{padding-left:48px}.feedback__form{margin-left:0}.examples__row{flex-direction:column}.msg--user{max-width:85%}.chat__footer{padding-bottom:env(safe-area-inset-bottom)}}