:root{--bg:#f7f8fb;--panel:#fff;--soft:#f1f4f9;--line:#e4e8ef;--text:#111827;--muted:#858b97;--accent:#258dea;--accent-soft:#e7f2ff;--green:#28ba7a;--danger:#e65568;--terminal:#151820}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.app-shell{display:flex;min-height:100vh}.sidebar{width:288px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:18px 14px;z-index:3}.sidebar-head{display:grid;gap:18px}.logo{font-size:16px;font-weight:750}.logo span{color:var(--accent);font:22px ui-monospace,monospace;margin-right:7px}.new-chat{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;border:0;border-radius:9px;background:var(--accent);color:#fff;font:650 14px inherit;padding:12px;cursor:pointer}.new-chat span{font-size:23px;line-height:13px}.chat-search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:22px;margin:20px 2px 12px;padding:0 12px;background:#fbfcfe}.chat-search span{width:14px;height:14px;border:2px solid #a9b0bd;border-radius:50%;position:relative}.chat-search span:after{content:"";position:absolute;width:6px;height:2px;background:#a9b0bd;right:-5px;bottom:-3px;transform:rotate(45deg)}.chat-search input{width:100%;background:transparent;border:0;outline:0;padding:10px 0;color:var(--text);font:14px inherit}.chat-date{color:var(--muted);font-size:12px;margin:5px 8px 8px}.chat-list{overflow:auto;display:grid;align-content:start;gap:2px}.chat-item{width:100%;border:0;background:transparent;color:var(--text);text-align:left;border-radius:7px;padding:11px 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font:14px inherit;cursor:pointer}.chat-item:hover,.chat-item.active{background:var(--accent-soft);color:#1471c4}.sidebar-bottom{margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}.server-button{width:100%;padding:10px;border:0;border-radius:6px;background:transparent;color:var(--text);font:14px inherit;text-align:left;cursor:pointer}.server-button:hover{background:var(--soft)}.server-button span{float:right;color:var(--muted)}.user-row{display:flex;align-items:center;justify-content:space-between;padding:10px;color:var(--muted);font-size:13px}.icon-btn{border:0;background:transparent;color:var(--muted);font-size:18px;cursor:pointer}.main{display:flex;flex-direction:column;flex:1;min-width:0;max-width:1120px;margin:auto;min-height:100vh}header{height:76px;display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 30px;gap:15px;background:#ffffffbf;backdrop-filter:blur(14px)}.chat-heading{flex:1;min-width:0}h1{font-size:17px;margin:0 0 6px;font-weight:720;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.server-select{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px}.server-select select{max-width:260px;border:0;background:transparent;outline:0;color:var(--muted);font:inherit}.status-dot{display:block;width:8px;height:8px;border-radius:50%;background:var(--green)}.header-actions{display:flex;align-items:center;gap:9px}.header-add,.stop-btn{height:34px;width:34px;border:1px solid var(--line);background:#fff;border-radius:50%;color:var(--text);font-size:25px;line-height:1;cursor:pointer}.stop-btn{border-radius:7px;color:var(--danger);font-size:13px}.mobile-head-actions{display:none}.messages{display:flex;flex-direction:column;gap:22px;flex:1;overflow:auto;padding:30px max(26px,calc((100% - 770px)/2))}.welcome{text-align:center;margin:auto;max-width:530px;color:var(--muted)}.welcome-icon{color:var(--accent);font:40px ui-monospace,monospace}.welcome h2{margin:8px 0;font-size:25px;color:var(--text)}.welcome p{line-height:1.6}.message{display:grid;grid-template-columns:34px minmax(0,1fr);gap:13px;line-height:1.65}.avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:8px;background:var(--soft);color:var(--accent);font:13px ui-monospace,monospace}.message.user .avatar{color:var(--green)}.message-content{padding:3px 0;white-space:normal;overflow-wrap:anywhere;font-size:16px}.message-content code{background:#edf1f6;border-radius:4px;padding:2px 5px;font:13px ui-monospace,monospace}.action{margin-left:46px;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;box-shadow:0 2px 7px #1722380a}.action-summary{display:flex;align-items:center;gap:8px;padding:11px 13px;font-size:12px;overflow:hidden}.action-summary strong{color:var(--accent)}.action-summary code{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.action-status{margin-left:auto;font-weight:650}.action-status.completed{color:var(--green)}.action-status.failed{color:var(--danger)}.action-result{margin:0;padding:12px;background:var(--terminal);border-top:1px solid var(--line);color:#dce3ed;font:12px/1.5 ui-monospace,SFMono-Regular,monospace;white-space:pre-wrap;max-height:250px;overflow:auto}.agent-status{margin:0 max(26px,calc((100% - 770px)/2));padding:8px 0;color:var(--accent);font-size:13px}.hidden{display:none}.spinner{display:inline-block;width:11px;height:11px;border:2px solid #b9daf8;border-top-color:var(--accent);border-radius:50%;margin-right:7px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.composer{display:flex;align-items:flex-end;gap:5px;margin:0 max(26px,calc((100% - 770px)/2));padding:8px 9px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 12px 30px #18223812}.composer textarea{flex:1;resize:none;border:0;outline:0;background:transparent;color:var(--text);font:15px inherit;line-height:1.5;max-height:180px;padding:8px}.composer textarea::placeholder{color:#a1a7b1}.attach{display:grid;place-items:center;width:34px;height:34px;color:var(--muted);cursor:pointer;font-size:20px}.attach input{display:none}.send{width:38px;height:38px;border:0;border-radius:11px;background:var(--accent);color:#fff;font-size:22px;line-height:1;cursor:pointer}.disclaimer{text-align:center;color:#a1a7b1;font-size:11px;margin:10px 0 16px}dialog{color:var(--text);background:#fff;border:1px solid var(--line);border-radius:12px;width:min(520px,calc(100vw - 32px));padding:22px;box-shadow:0 20px 55px #17223830}dialog::backdrop{background:#1921313d}.modal-head{display:flex;align-items:center;justify-content:space-between}.modal-head h2,dialog h2{margin:0 0 18px;font-size:18px}.servers{display:grid;gap:7px;margin-bottom:20px}.server-card{padding:11px;background:var(--soft);border-radius:7px}.server-card small{display:block;color:var(--muted);margin-top:3px}.server-form{display:grid;gap:10px;padding-top:18px;border-top:1px solid var(--line)}.server-form h3{margin:0;font-size:14px}.server-form label{display:grid;grid-template-columns:1fr;gap:5px;color:var(--muted);font-size:12px}.server-form input,.server-form textarea{width:100%;border:1px solid var(--line);border-radius:6px;background:#fbfcfe;color:var(--text);padding:9px;font:13px inherit}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.optional{color:#a1a7b1}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.secondary,.danger{border:0;border-radius:7px;padding:9px 13px;cursor:pointer}.secondary{background:var(--soft);color:var(--text)}.danger{background:#ffe5e9;color:#bf2338}.error{background:#ffe8ec;color:#ba2440;padding:8px;border-radius:5px}.auth-body{display:grid;min-height:100vh;place-items:center}.auth-panel{width:min(400px,calc(100vw - 36px));padding:32px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 45px #17223814}.auth-panel h1{font-size:24px;margin:10px 0}.brand-mark{color:var(--accent);font:28px ui-monospace,monospace}.muted{color:var(--muted)}.auth-panel form{display:grid;gap:14px;margin-top:22px}.auth-panel label{display:grid;grid-template-columns:1fr;gap:6px;color:var(--muted);font-size:12px}.auth-panel input{width:100%;background:#fbfcfe;border:1px solid var(--line);padding:10px;border-radius:6px;color:var(--text)}button[type=submit]{border:0;border-radius:7px;background:var(--accent);color:#fff;font:650 14px inherit;padding:11px;cursor:pointer}.switch{color:var(--muted);font-size:13px;margin-top:20px}.switch a{color:var(--accent)}.sidebar-overlay{display:none}@media(max-width:700px){body{font-size:14px}.sidebar{position:fixed;inset:0 auto 0 0;width:min(82vw,340px);padding:20px 16px;box-shadow:16px 0 45px #1722381c;transform:translateX(-105%);transition:transform .24s ease}.sidebar.open{transform:translateX(0)}.sidebar-overlay{position:fixed;inset:0;background:#18223548;z-index:2;opacity:0;pointer-events:none;transition:opacity .24s}.sidebar-overlay.open{display:block;opacity:1;pointer-events:auto}.main{width:100%;min-height:100svh}.mobile-head-actions{display:block}.menu-btn{display:grid;gap:4px;width:34px;height:34px;padding:8px;border:0;background:transparent;cursor:pointer}.menu-btn i{display:block;width:20px;height:2px;background:#171c25;border-radius:3px}.header-actions{gap:4px}.header-add{display:block}header{height:66px;padding:0 14px;gap:6px}.chat-heading{text-align:center}.chat-heading h1{font-size:15px}.server-select{justify-content:center;font-size:12px}.server-select select{max-width:155px}.stop-btn{width:30px;height:30px;font-size:11px}.messages{padding:25px 18px;gap:20px}.welcome h2{font-size:21px}.message{grid-template-columns:31px minmax(0,1fr);gap:10px}.avatar{width:30px;height:30px}.message-content{font-size:16px}.action{margin-left:40px}.composer{margin:0 14px;border-radius:18px}.disclaimer{margin-bottom:12px}.chat-search{margin-top:16px}}