:root{
  --bg:#0b0d10;--panel:#111419;--panel2:#171b21;--panel3:#1e242c;--line:#262d36;
  --text:#f1f4f7;--muted:#8b96a3;--accent:#d7ff64;--danger:#ff6b6b;--warn:#ffc857;
  --radius:16px;--shadow:0 18px 60px rgba(0,0,0,.35)
}
*{box-sizing:border-box}html,body{height:100%;margin:0;background:var(--bg);color:var(--text);font:14px/1.45 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}.hidden{display:none!important}
.login-shell{min-height:100%;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 50% 20%,#17201f 0,#0b0d10 42%)}.login-card{width:min(390px,100%);padding:32px;border:1px solid var(--line);border-radius:24px;background:rgba(17,20,25,.94);box-shadow:var(--shadow)}.login-card h1{margin:18px 0 3px;font-size:28px}.login-card p{margin:0 0 25px;color:var(--muted)}.login-card label{display:grid;gap:8px;margin:14px 0;color:#cbd2d9}.login-card input,.modal input,.modal select,.modal textarea{width:100%;border:1px solid var(--line);background:#0d1014;color:var(--text);border-radius:12px;padding:12px;outline:none}.login-card input:focus,.modal input:focus,.modal textarea:focus{border-color:#4b5d36}.primary{width:100%;border:0;background:var(--accent);color:#10130a;font-weight:800;border-radius:12px;padding:13px;margin-top:8px}.form-error{min-height:22px;margin-top:10px;color:var(--danger)}
.brand-mark{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:var(--accent);color:#0c1004;font-weight:900;font-size:24px}.brand-mark.small{width:34px;height:34px;border-radius:10px;font-size:18px}.brand-mark.hero{width:68px;height:68px;border-radius:21px;font-size:33px;margin:auto}
.app{height:100%;display:grid;grid-template-columns:286px minmax(0,1fr);overflow:hidden}.sidebar{background:#0e1115;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}.sidebar-head{height:68px;display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--line)}.brand-row{display:flex;gap:10px;align-items:center}.brand-row div:last-child{display:grid}.brand-row span{font-size:11px;color:var(--muted)}.sidebar-search{padding:12px}.sidebar-search input{width:100%;background:var(--panel2);border:1px solid var(--line);border-radius:11px;padding:10px;color:var(--text);outline:0}.session-list{flex:1;overflow:auto;padding:0 8px 12px}.session-item{display:grid;grid-template-columns:1fr auto;gap:8px;padding:11px 10px;border-radius:11px;color:#c9d0d7;cursor:pointer}.session-item:hover,.session-item.active{background:var(--panel2);color:white}.session-item .meta{font-size:11px;color:var(--muted);margin-top:2px}.session-item .title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-foot{border-top:1px solid var(--line);padding:10px}.nav-btn{width:100%;text-align:left;padding:10px;border:0;background:transparent;color:#c9d0d7;border-radius:9px}.nav-btn:hover{background:var(--panel2)}.user-caption{padding:8px 10px 2px;font-size:11px;color:var(--muted)}
.main{min-width:0;display:grid;grid-template-rows:auto minmax(0,1fr) auto auto auto;background:var(--bg)}.topbar{height:68px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:10px 16px;gap:12px;background:rgba(11,13,16,.92);backdrop-filter:blur(14px);z-index:3}.chat-title-wrap{min-width:0;flex:1}.chat-title{display:block;width:min(520px,100%);background:transparent;border:0;color:var(--text);font-size:15px;font-weight:750;outline:0;padding:0}.status-line{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.top-actions{display:flex;align-items:center;gap:7px}.icon-btn,.chip{border:1px solid var(--line);background:var(--panel2);color:#dce2e8;border-radius:10px;min-width:38px;height:38px;padding:0 11px}.icon-btn:hover,.chip:hover{background:var(--panel3)}.chip{max-width:190px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-only{display:none}
.messages{overflow:auto;padding:30px clamp(16px,4vw,64px) 120px;scroll-behavior:smooth}.messages-inner{width:min(940px,100%);margin:auto}.welcome{width:min(610px,100%);margin:15vh auto 0;text-align:center}.welcome h2{font-size:25px;margin:18px 0 6px}.welcome p{color:var(--muted)}.msg{width:min(940px,100%);margin:0 auto 22px}.msg-head{display:flex;gap:9px;align-items:center;margin-bottom:7px;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.06em}.msg.user .bubble{margin-left:auto;max-width:78%;background:#1b211b;border:1px solid #2e3928;border-radius:16px 16px 4px 16px;padding:12px 14px;white-space:pre-wrap}.msg.assistant .bubble{font-size:15px;line-height:1.65;color:#e8edf2;white-space:pre-wrap}.msg.assistant .bubble code{background:#1a1e24;border:1px solid var(--line);padding:1px 5px;border-radius:5px}.tool-card{margin:10px 0;border:1px solid var(--line);background:var(--panel);border-radius:12px;overflow:hidden}.tool-card summary{list-style:none;display:flex;align-items:center;gap:9px;padding:10px 12px;cursor:pointer}.tool-card summary::-webkit-details-marker{display:none}.tool-card .dot{width:8px;height:8px;border-radius:50%;background:var(--warn)}.tool-card.done .dot{background:#77d991}.tool-card.error .dot{background:var(--danger)}.tool-card pre{margin:0;border-top:1px solid var(--line);padding:12px;max-height:320px;overflow:auto;white-space:pre-wrap;color:#b7c0c9;font-size:12px}.activity{width:min(940px,100%);margin:0 auto 14px;color:var(--muted);font-size:12px}.activity strong{color:#cfd6dd}.subagent-card{border-left:2px solid #6878ff;padding-left:10px;margin:8px 0}
.pending-bar,.attachment-bar{width:min(940px,calc(100% - 30px));margin:0 auto 8px;display:flex;gap:8px;flex-wrap:wrap}.pending-card,.attachment-chip{border:1px solid var(--line);background:var(--panel2);border-radius:11px;padding:8px 10px;display:flex;gap:8px;align-items:center}.pending-card button,.attachment-chip button{border:0;background:transparent;color:var(--muted)}.attachment-chip .file-size{font-size:11px;color:var(--muted)}
.composer-wrap{padding:0 16px max(12px,env(safe-area-inset-bottom));background:linear-gradient(transparent,var(--bg) 28%)}.composer{width:min(940px,100%);margin:auto;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:end;border:1px solid #303842;border-radius:19px;background:#12161b;padding:8px;box-shadow:0 14px 35px rgba(0,0,0,.25)}.composer:focus-within{border-color:#4a573d}.composer textarea{resize:none;max-height:180px;min-height:38px;border:0;outline:0;background:transparent;color:var(--text);padding:9px 8px;line-height:1.45}.send-btn{width:38px;height:38px;border:0;border-radius:12px;background:var(--accent);color:#111;font-size:18px;font-weight:900}.send-btn.stop{background:#ffdad7;color:#6d1717}.attach{border:0;background:transparent}.composer-hint{width:min(940px,100%);margin:5px auto 0;text-align:center;color:#626e7a;font-size:10px}.steer-row{width:min(940px,100%);margin:0 auto 7px;display:grid;grid-template-columns:1fr auto;gap:7px}.steer-row input{background:#151920;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:9px}.steer-row button{border:1px solid #384363;background:#202941;color:#dce4ff;border-radius:10px}
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.66);display:grid;place-items:center;padding:18px;z-index:50}.modal{width:min(680px,100%);max-height:min(86vh,820px);overflow:auto;background:#12161b;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:20px}.modal.wide{width:min(980px,100%)}.modal h2{margin:0 0 4px}.modal p.sub{color:var(--muted);margin:0 0 18px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.modal button{border:1px solid var(--line);background:var(--panel2);color:var(--text);padding:9px 12px;border-radius:10px}.modal button.primary{width:auto;background:var(--accent);color:#111;border:0;margin:0}.modal button.danger{background:#3a1c1c;color:#ffc4c4;border-color:#5a2929}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:6px;margin:11px 0}.field small{color:var(--muted)}.tabs{display:flex;gap:5px;border-bottom:1px solid var(--line);margin:12px 0}.tab{border:0!important;background:transparent!important;border-bottom:2px solid transparent!important;border-radius:0!important}.tab.active{border-bottom-color:var(--accent)!important;color:var(--accent)!important}.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid var(--line);padding:10px 7px;text-align:left}.table th{font-size:11px;color:var(--muted);text-transform:uppercase}.choice-list{display:grid;gap:8px}.choice-list button{text-align:left}.codebox{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;background:#0b0e12;border:1px solid var(--line);padding:12px;border-radius:10px;white-space:pre-wrap;word-break:break-word}.toast-root{position:fixed;right:15px;bottom:15px;z-index:100;display:grid;gap:8px}.toast{max-width:380px;background:#1a1f26;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px;padding:11px 13px}.toast.error{border-color:#623333;color:#ffd2d2}.toast.ok{border-color:#355c42}.raw-event{font-size:11px;color:#7f8b97}
@media(max-width:820px){.app{grid-template-columns:1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:min(86vw,310px);z-index:30;transform:translateX(-102%);transition:.18s ease;box-shadow:var(--shadow)}.sidebar.open{transform:none}.mobile-only{display:inline-grid;place-items:center}.top-actions .icon-btn{display:none}.messages{padding:22px 14px 110px}.msg.user .bubble{max-width:92%}.composer-wrap{padding-inline:10px}.grid2{grid-template-columns:1fr}.topbar{padding-inline:10px}.chip{max-width:120px}.welcome{margin-top:10vh}}