:root{color-scheme:light;--bg:#f5f6f8;--panel:#fff;--ink:#18242c;--muted:#69777e;--line:#e3e8eb;--accent:#096d61;--accent-soft:#e8f5f1;--error:#b42b36;font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}[hidden]{display:none!important}button,input,select,textarea{font:inherit}button,input,select{min-height:44px}button{border:1px solid transparent;border-radius:10px;padding:9px 16px;cursor:pointer;background:var(--accent);color:#fff;font-weight:600}button:disabled{opacity:.45;cursor:not-allowed}button:hover:not(:disabled){filter:brightness(.93)}button.quiet{background:transparent;color:var(--muted);padding:7px 11px}button.danger{background:transparent;color:var(--error);border-color:var(--line)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--ink);padding:11px 12px;outline:none}input:focus,select:focus,textarea:focus,button:focus-visible{border-color:var(--accent);outline:2px solid #096d6125;outline-offset:2px}label{display:block;font-size:13px;font-weight:600;margin:17px 0 8px}h1,h2,p{margin-top:0}h1{font-size:22px;line-height:1.5;margin-bottom:8px}h2{font-size:15px;margin:0}.muted,.fineprint{color:var(--muted)}.muted{font-size:13px;line-height:1.7;margin-bottom:0}.fineprint{font-size:12px;line-height:1.65}.error{color:var(--error)}.login-view{min-height:100dvh;display:grid;place-items:center;padding:24px}.login-card{width:min(100%,410px);background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:38px;box-shadow:0 20px 70px #1a3a4810}.brand{font-family:ui-monospace,monospace;font-size:35px;font-weight:800;letter-spacing:-6px}.brand span{color:var(--accent)}.brand.small{font-size:26px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--accent);margin:22px 0 8px}.login-card h1{font-size:30px}.login-card button{width:100%;margin:18px 0 12px}.login-card .error{min-height:20px;font-size:13px}.app-shell{height:100dvh;display:grid;grid-template-columns:260px minmax(0,1fr);grid-template-rows:65px minmax(0,1fr)}.topbar{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;background:var(--panel);border-bottom:1px solid var(--line);padding:0 24px}.wordmark,.top-actions{display:flex;align-items:center;gap:16px}.wordmark strong{font-size:15px}.connection{font-size:12px;color:var(--accent)}.sidebar{padding:20px 14px;border-right:1px solid var(--line);overflow:auto}.sidebar-heading{display:flex;align-items:center;justify-content:space-between;padding:0 4px 12px}.create-form{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:0 12px 12px;margin-bottom:16px}.create-form button{width:100%}.sessions{display:flex;flex-direction:column;gap:5px}.session{background:transparent;color:var(--ink);text-align:left;padding:12px;border-radius:12px;display:block;min-height:64px;width:100%}.session.selected{background:var(--panel);border-color:var(--line)}.session-title{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:600}.session-meta{display:block;font-size:11px;color:var(--muted);margin-top:5px;font-weight:400}.conversation{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--panel)}.conversation-heading{padding:20px 28px 16px;border-bottom:1px solid var(--line);display:flex;gap:12px;justify-content:space-between;align-items:start}.conversation-heading h1{font-size:17px;margin-bottom:3px;overflow-wrap:anywhere}.status{border:1px solid var(--line);border-radius:99px;font-size:11px;padding:6px 10px;white-space:nowrap;background:var(--bg)}.status.running,.status.stopping{color:var(--accent);background:var(--accent-soft)}.notice{margin:12px 24px 0;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:12px;line-height:1.6}.messages{flex:1;overflow:auto;padding:24px 28px;display:flex;flex-direction:column;gap:24px;min-height:100px;overscroll-behavior:contain}.empty-state{margin:auto;text-align:center;color:var(--muted);font-size:14px;line-height:1.8}.message{max-width:900px;width:100%;align-self:center}.message.user .message-text{background:var(--accent-soft);padding:14px 16px;border-radius:12px}.message-role{font-size:11px;letter-spacing:.3px;color:var(--muted);margin-bottom:8px}.message-text{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;font-size:14px;line-height:1.85;margin:0}.activity{border-top:1px solid var(--line);margin:0 24px;font-size:12px}.activity summary{cursor:pointer;color:var(--muted);padding:12px 0}.activity summary span{margin-left:8px;color:var(--accent)}.events{max-height:180px;overflow:auto;background:var(--bg);border-radius:8px}.event{white-space:pre-wrap;overflow-wrap:anywhere;font-family:ui-monospace,monospace;font-size:11px;line-height:1.6;margin:0;padding:8px 12px;border-bottom:1px solid var(--line)}.composer{padding:0 24px max(16px,env(safe-area-inset-bottom))}.composer textarea{resize:vertical;min-height:84px;max-height:220px;font-size:15px}.composer-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:9px}.composer-bottom>div{display:flex;gap:8px;flex-shrink:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.conversation-heading>div{min-width:0;flex:1}.model-meta{color:var(--muted);font-size:12px;line-height:1.6;margin:5px 0 0;overflow-wrap:anywhere}.composer-hint{margin:7px 0 0;overflow-wrap:anywhere}
@media(max-width:720px){.app-shell{grid-template-columns:1fr;grid-template-rows:56px auto minmax(0,1fr)}.topbar{padding:0 15px}.wordmark{gap:12px}.sidebar{padding:8px 12px;border-right:0;border-bottom:1px solid var(--line);max-height:220px}.sidebar-heading{padding:0}.sessions{flex-direction:row;overflow-x:auto;gap:6px;padding:4px 0}.session{width:170px;min-width:150px;min-height:55px;padding:8px 10px}.create-form{margin-top:8px;max-height:300px;overflow:auto}.sidebar:has(.create-form:not([hidden])){max-height:45dvh}.conversation-heading{padding:13px 16px}.conversation-heading h1{font-size:15px}.conversation-heading .muted,.model-meta{font-size:11px}.messages{padding:18px 16px;gap:20px}.message-text{font-size:14px}.activity{margin:0 16px}.composer{padding-left:12px;padding-right:12px}.composer textarea{font-size:16px;min-height:76px}.composer-hint{font-size:11px;line-height:1.55}.composer-bottom .fineprint{max-width:165px;font-size:10px}.composer-bottom button{padding:8px 12px}.notice{margin:8px 12px 0}.events{max-height:135px}.login-card{padding:30px 25px}}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--bg:#141a1e;--panel:#1b2429;--ink:#e7eeee;--muted:#9aabb2;--line:#304047;--accent:#6bd3b8;--accent-soft:#223d38;--error:#ff9da3}button{color:#112b24}.login-card{box-shadow:none}button.danger{color:var(--error)}.status{color:var(--muted)}}