:root{
  --bg:#0f1115; --panel:#171a21; --panel2:#1d2129; --line:#2a2f3a;
  --txt:#e6e9ef; --muted:#8b93a4; --accent:#5b8cff; --accent2:#3a6df0;
  --green:#3fb950; --amber:#d29922; --red:#f85149; --user:#243049;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--txt);font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
.hidden{display:none !important}
button{cursor:pointer;font:inherit}
a{color:var(--accent);text-decoration:none}
.btn{background:var(--panel2);color:var(--txt);border:1px solid var(--line);border-radius:7px;padding:6px 12px}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent2);border-color:var(--accent2)}
.btn.primary:disabled{opacity:.5;cursor:not-allowed}
.btn.danger:hover{border-color:var(--red);color:var(--red)}

/* login */
.login{position:fixed;inset:0;display:grid;place-items:center;background:var(--bg)}
.login-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:32px;width:340px;text-align:center}
.login-card h1{margin:0 0 6px;font-size:22px}
.login-card p{color:var(--muted);margin:0 0 18px}
.login-card input{width:100%;padding:10px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--txt);margin-bottom:12px}
.login-card button{width:100%;padding:10px;background:var(--accent2);border:none;border-radius:8px;color:#fff}
.err{color:var(--red);margin-bottom:10px;min-height:18px;font-size:13px}

/* layout */
.app{display:grid;grid-template-columns:260px 1fr 320px;height:100vh}
.sidebar{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column}
.brand{font-weight:700;font-size:16px;padding:16px;border-bottom:1px solid var(--line)}
.sites-head{display:flex;justify-content:space-between;align-items:center;padding:12px 16px 6px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.sites-head button{background:none;border:none;color:var(--muted);font-size:16px;margin-left:6px}
.sites-head button:hover{color:var(--accent)}
.site-list{list-style:none;margin:0;padding:0;overflow:auto;flex:1}
.site-list li{padding:10px 16px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;align-items:center;gap:8px}
.site-list li:hover{background:var(--panel2)}
.site-list li.active{background:var(--panel2);border-left:3px solid var(--accent)}
.dot{width:8px;height:8px;border-radius:50%;background:#555;flex:none}
.dot.running{background:var(--green)}
.dot.busy{background:var(--amber);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.3}}
.site-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidebar-foot{padding:12px 16px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px;font-size:13px}
.sidebar-foot .who{color:var(--muted);flex:1;overflow:hidden;text-overflow:ellipsis}
.sidebar-foot button{background:none;border:1px solid var(--line);color:var(--muted);border-radius:7px;padding:5px 9px}

/* main */
.main{display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}
.site-title{display:flex;align-items:center;gap:10px;font-weight:600}
.badge{font-size:11px;padding:3px 9px;border-radius:20px;background:var(--panel2);color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.badge.running{color:var(--green)}
.badge.running.busy{color:var(--amber)}
.actions{display:flex;gap:8px}
.chat-wrap{flex:1;display:flex;flex-direction:column;min-height:0}
.messages{flex:1;overflow:auto;padding:22px;display:flex;flex-direction:column;gap:14px}
.msg{max-width:80%;padding:11px 14px;border-radius:12px;white-space:pre-wrap;word-wrap:break-word}
.msg.user{align-self:flex-end;background:var(--user)}
.msg.assistant{align-self:flex-start;background:var(--panel2);border:1px solid var(--line)}
.msg.result{align-self:flex-start;background:#16241a;border:1px solid #1f4426}
.msg .who{font-size:11px;color:var(--muted);margin-bottom:4px;text-transform:uppercase;letter-spacing:.04em}
.tool{align-self:flex-start;max-width:80%;font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--muted);background:#12151b;border:1px dashed var(--line);border-radius:8px;padding:7px 10px}
.tool b{color:var(--accent)}
.sys{align-self:center;color:var(--muted);font-size:12px;font-style:italic}
.cost{font-size:11px;color:var(--muted);margin-top:6px}
.composer{display:flex;gap:10px;padding:14px 18px;border-top:1px solid var(--line)}
.composer textarea{flex:1;resize:none;background:var(--panel2);color:var(--txt);border:1px solid var(--line);border-radius:10px;padding:11px 13px;max-height:160px}
.composer textarea:focus{outline:none;border-color:var(--accent)}

/* right bar */
.rightbar{background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;min-width:0}
.tabs{display:flex;border-bottom:1px solid var(--line)}
.tab{flex:1;background:none;border:none;color:var(--muted);padding:13px;border-bottom:2px solid transparent}
.tab.active{color:var(--txt);border-bottom-color:var(--accent)}
.tabpane{flex:1;overflow:auto;padding:14px}
.task-add{display:flex;gap:8px;margin-bottom:12px}
.task-add input{flex:1;background:var(--panel2);border:1px solid var(--line);border-radius:7px;color:var(--txt);padding:8px}
.task-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.task-list li{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:9px 11px;display:flex;gap:9px;align-items:flex-start}
.task-list .st{cursor:pointer;flex:none;font-family:ui-monospace,monospace}
.task-list .st.todo{color:var(--muted)}
.task-list .st.doing{color:var(--amber)}
.task-list .st.done{color:var(--green)}
.task-list .ttl{flex:1}
.task-list .done .ttl{text-decoration:line-through;color:var(--muted)}
.task-list .del{background:none;border:none;color:var(--muted);font-size:14px}
.task-list .del:hover{color:var(--red)}
.context-view{white-space:pre-wrap;font-family:ui-monospace,Menlo,monospace;font-size:11.5px;color:var(--muted);margin:0}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:grid;place-items:center;z-index:50}
.modal-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px;width:420px}
.modal-card h2{margin:0 0 4px}
.modal-card .hint{color:var(--muted);font-size:13px;margin:0 0 16px}
.modal-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:12px}
.modal-card label.chk{display:flex;gap:8px;align-items:center}
.modal-card input[type=text],.modal-card input:not([type]){width:100%;margin-top:4px;padding:9px;border-radius:7px;border:1px solid var(--line);background:var(--bg);color:var(--txt)}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}
.ns-out{background:#12151b;border:1px solid var(--line);border-radius:7px;padding:10px;font-family:ui-monospace,monospace;font-size:11.5px;max-height:200px;overflow:auto;white-space:pre-wrap;margin-bottom:12px}