:root {
  --bg:#0a0c11; --bg2:#0d1017; --panel:#12151d; --panel2:#171b24; --border:#232838; --border2:#2e3547;
  --text:#e8eaf2; --dim:#8b93a8; --dimmer:#5c6478;
  --blue:#4f8cff; --violet:#8b5cf6; --green:#34d399; --red:#f87171; --amber:#fbbf24;
  --glow:0 0 20px rgba(79,140,255,.25);
  --radius:12px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html,body { height:100%; }
body { background:var(--bg); color:var(--text); font-family:ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif; font-size:14px; -webkit-font-smoothing:antialiased; overflow:hidden; }
button, input, select, textarea { font:inherit; color:inherit; }
::-webkit-scrollbar { width:10px; height:10px; }
::-webkit-scrollbar-thumb { background:#2a3040; border-radius:8px; border:2px solid var(--panel); }
::-webkit-scrollbar-track { background:transparent; }

#app { display:flex; height:100vh; }
#sidebar { width:216px; background:var(--bg2); border-right:1px solid var(--border); display:flex; flex-direction:column; flex-shrink:0; }
.logo { font-weight:800; font-size:18px; letter-spacing:-.02em; padding:18px 18px 14px; cursor:pointer; }
.logo span { color:var(--blue); }
#nav { padding:4px 10px; display:flex; flex-direction:column; gap:2px; }
.navbtn { text-align:left; padding:9px 12px; border-radius:9px; background:transparent; border:none; color:var(--dim); cursor:pointer; font-weight:600; }
.navbtn:hover { background:var(--panel2); color:var(--text); }
.navbtn.active { background:linear-gradient(135deg,rgba(79,140,255,.16),rgba(139,92,246,.12)); color:var(--text); box-shadow:inset 0 0 0 1px rgba(79,140,255,.25); }
.side-foot { margin-top:auto; padding:14px; border-top:1px solid var(--border); }
.rl-meter { height:5px; border-radius:4px; background:var(--panel2); overflow:hidden; margin-bottom:8px; }
.rl-meter i { display:block; height:100%; background:linear-gradient(90deg,var(--blue),var(--violet)); border-radius:4px; }
.foot-note { color:var(--dimmer); font-size:11px; line-height:1.5; }

#main { flex:1; overflow:auto; min-width:0; }
.view { padding:26px 32px; max-width:1200px; margin:0 auto; }
h1.page { font-size:26px; font-weight:800; letter-spacing:-.02em; margin-bottom:6px; }
p.sub { color:var(--dim); margin-bottom:24px; }
.card { background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); padding:18px; }
.grid2 { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:14px; }
.btn { display:inline-flex; align-items:center; gap:7px; padding:9px 16px; border-radius:10px; font-weight:700; border:1px solid var(--border2); background:var(--panel2); color:var(--text); cursor:pointer; }
.btn:hover { border-color:#3a4souo; }
.btn-primary { background:linear-gradient(135deg,var(--blue),var(--violet)); border:none; color:#fff; box-shadow:var(--glow); }
.btn-primary:hover { filter:brightness(1.1); }
.btn-danger { border-color:rgba(248,113,113,.4); color:var(--red); background:rgba(248,113,113,.08); }
.btn-sm { padding:5px 10px; font-size:12px; border-radius:8px; }
.btn:disabled { opacity:.5; cursor:not-allowed; }
input[type=text], input[type=search], select, textarea { background:var(--bg2); border:1px solid var(--border); border-radius:9px; padding:9px 12px; outline:none; width:100%; }
input:focus, select:focus, textarea:focus { border-color:var(--blue); }
.badge { display:inline-block; font-size:10.5px; font-weight:700; padding:2px 8px; border-radius:999px; letter-spacing:.02em; }
.badge.server { background:rgba(79,140,255,.14); color:#7fabff; border:1px solid rgba(79,140,255,.3); }
.badge.client { background:rgba(139,92,246,.14); color:#b79bff; border:1px solid rgba(139,92,246,.3); }
.badge.module { background:rgba(52,211,153,.12); color:#6ee7b7; border:1px solid rgba(52,211,153,.3); }
.badge.gen { background:rgba(251,191,36,.12); color:var(--amber); border:1px solid rgba(251,191,36,.3); }
.empty { text-align:center; color:var(--dim); padding:60px 20px; }
.empty h3 { color:var(--text); margin-bottom:8px; }
.spin { width:16px; height:16px; border:2px solid var(--border2); border-top-color:var(--blue); border-radius:50%; animation:spin .8s linear infinite; display:inline-block; }
@keyframes spin { to { transform:rotate(360deg); } }

/* ---------- workspace layout ---------- */
#ws { display:flex; flex-direction:column; height:100vh; }
#ws-head { display:flex; align-items:center; gap:12px; padding:10px 16px; background:var(--bg2); border-bottom:1px solid var(--border); flex-shrink:0; }
#ws-head .projname { font-weight:800; font-size:15px; }
#ws-body { flex:1; display:flex; min-height:0; }
.pane { display:flex; flex-direction:column; min-width:0; }
#pane-left { width:250px; background:var(--bg2); border-right:1px solid var(--border); flex-shrink:0; }
#pane-center { flex:1; background:var(--bg); }
#pane-right { width:300px; background:var(--bg2); border-left:1px solid var(--border); flex-shrink:0; }
.pane-head { padding:9px 12px; font-size:11px; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:var(--dimmer); border-bottom:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; flex-shrink:0; }
.pane-body { flex:1; overflow:auto; min-height:0; }
.tabs { display:flex; gap:2px; padding:6px 8px 0; background:var(--bg2); border-bottom:1px solid var(--border); overflow-x:auto; flex-shrink:0; }
.tab { padding:7px 14px; border-radius:8px 8px 0 0; font-size:12.5px; color:var(--dim); cursor:pointer; white-space:nowrap; border:1px solid transparent; border-bottom:none; }
.tab.active { background:var(--bg); color:var(--text); border-color:var(--border); }

/* explorer tree */
.treeitem { display:flex; align-items:center; gap:7px; padding:5px 10px; cursor:pointer; border-radius:7px; margin:1px 6px; font-size:13px; }
.treeitem:hover { background:var(--panel2); }
.treeitem.selected { background:rgba(79,140,255,.14); box-shadow:inset 0 0 0 1px rgba(79,140,255,.25); }
.treeitem .icon { flex-shrink:0; width:14px; text-align:center; opacity:.85; font-size:11px; }
.treeitem .tname { flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.tree-kids { margin-left:14px; border-left:1px solid var(--border); margin-left:14px; }
.hier-row-actions { display:none; gap:2px; }
.treeitem:hover .hier-row-actions { display:flex; }
.mini { border:none; background:transparent; color:var(--dim); cursor:pointer; padding:1px 4px; border-radius:4px; font-size:11px; }
.mini:hover { background:var(--border); color:var(--text); }

/* editor */
#editor-wrap { flex:1; display:flex; min-height:0; position:relative; }
#editor-scroll { flex:1; overflow:auto; background:var(--bg2); }
#editor-inner { display:grid; grid-template-columns:max-content 1fr; min-height:100%; min-width:100%; width:max-content; }
#gutter { padding:12px 10px 12px 14px; text-align:right; color:var(--dimmer); font-size:13px; line-height:1.55; user-select:none; background:var(--bg2); border-right:1px solid var(--border); }
#code-area { display:grid; position:relative; }
.code-layer { grid-area:1/1; margin:0; padding:12px 16px; font-family:ui-monospace,'SF Mono',Menlo,Consolas,monospace; font-size:13px; line-height:1.55; white-space:pre; tab-size:2; }
#hl { pointer-events:none; color:#cdd3e6; overflow:hidden; }
textarea.code-layer { background:transparent; color:transparent; caret-color:#e8eaf2; border:none; outline:none; resize:none; overflow:hidden; min-height:100%; min-width:100%; }
.tok-kw { color:#c792ea; } .tok-str { color:#a5e8a1; } .tok-num { color:#f7b980; }
.tok-com { color:#5c6478; font-style:italic; } .tok-glob { color:#82aaff; } .tok-fn { color:#e6d67a; }
.editor-toolbar { display:flex; gap:8px; align-items:center; padding:8px 12px; border-bottom:1px solid var(--border); background:var(--bg2); flex-shrink:0; flex-wrap:wrap; }

/* chat */
#chat-col { flex:1; display:flex; flex-direction:column; min-height:0; }
#chat-log { flex:1; overflow-y:auto; padding:16px; display:flex; flex-direction:column; gap:12px; }
.msg { max-width:86%; padding:10px 14px; border-radius:13px; line-height:1.55; font-size:13.5px; }
.msg.user { align-self:flex-end; background:linear-gradient(135deg,rgba(79,140,255,.2),rgba(139,92,246,.18)); border:1px solid rgba(79,140,255,.3); }
.msg.ai { align-self:flex-start; background:var(--panel); border:1px solid var(--border); }
.msg .role { font-size:10px; font-weight:800; letter-spacing:.08em; text-transform:uppercase; color:var(--dimmer); margin-bottom:5px; }
.msg pre { background:#0d1017; border:1px solid var(--border); border-radius:9px; padding:10px 12px; overflow-x:auto; font-family:ui-monospace,Menlo,monospace; font-size:12px; line-height:1.5; margin:8px 0 4px; }
.msg code { font-family:inherit; }
.addfile-bar { display:flex; gap:6px; margin-top:6px; align-items:center; flex-wrap:wrap; }
.chips { display:flex; flex-wrap:wrap; gap:6px; padding:0 16px 8px; }
.chip { font-size:12px; padding:6px 11px; border-radius:999px; border:1px solid var(--border2); background:var(--panel); color:var(--dim); cursor:pointer; }
.chip:hover { color:var(--text); border-color:var(--blue); }
#chat-input-row { display:flex; gap:8px; padding:10px 16px 14px; border-top:1px solid var(--border); background:var(--bg2); }
#chat-input { flex:1; resize:none; height:44px; max-height:120px; }
.typing { display:inline-flex; gap:3px; align-items:center; color:var(--dimmer); font-size:12px; }
.typing i { width:5px; height:5px; background:var(--blue); border-radius:50%; animation:blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay:.2s; } .typing i:nth-child(3) { animation-delay:.4s; }
@keyframes blink { 0%,80%,100% { opacity:.25; } 40% { opacity:1; } }

/* properties */
.prop-row { display:flex; align-items:center; gap:8px; padding:6px 12px; font-size:12.5px; }
.prop-row label { width:110px; color:var(--dim); flex-shrink:0; }
.prop-row input, .prop-row select { padding:5px 8px; font-size:12.5px; }
.vec { display:flex; gap:4px; flex:1; }
.vec input { width:100%; }
.preview-canvas { width:100%; background:#0d1017; border-radius:8px; }

/* modal + toast */
#modal-root .overlay { position:fixed; inset:0; background:rgba(5,7,10,.72); display:flex; align-items:center; justify-content:center; z-index:100; }
.modal { background:var(--panel); border:1px solid var(--border2); border-radius:16px; padding:22px; width:min(520px,92vw); max-height:86vh; overflow:auto; box-shadow:0 20px 60px rgba(0,0,0,.5); }
.modal h2 { font-size:18px; margin-bottom:4px; }
.modal .sub { margin-bottom:16px; }
#toast-wrap { position:fixed; bottom:18px; right:18px; display:flex; flex-direction:column; gap:8px; z-index:200; }
.toast { background:var(--panel2); border:1px solid var(--border2); border-left:3px solid var(--blue); padding:10px 16px; border-radius:10px; font-size:13px; box-shadow:0 8px 30px rgba(0,0,0,.4); animation:slidein .25s ease; max-width:340px; }
.toast.err { border-left-color:var(--red); } .toast.ok { border-left-color:var(--green); }
@keyframes slidein { from { transform:translateY(8px); opacity:0; } }

/* mcp / settings / help */
.codeblock { background:#0d1017; border:1px solid var(--border); border-radius:9px; padding:12px 14px; font-family:ui-monospace,Menlo,monospace; font-size:12.5px; line-height:1.6; overflow-x:auto; white-space:pre; color:#c9d4ea; }
.tool-row { display:flex; gap:10px; padding:9px 0; border-bottom:1px solid var(--border); align-items:baseline; }
.tool-row code { color:#9ec5ff; font-size:12.5px; white-space:nowrap; }
.tool-row .desc { color:var(--dim); font-size:12.5px; }
.status-dot { display:inline-block; width:8px; height:8px; border-radius:50%; margin-right:7px; }
.status-dot.live { background:var(--green); box-shadow:0 0 8px rgba(52,211,153,.7); }
table.kv { width:100%; border-collapse:collapse; }
table.kv td { padding:8px 10px; border-bottom:1px solid var(--border); font-size:13px; }
table.kv td:first-child { color:var(--dim); width:140px; }
h3.sect { font-size:15px; font-weight:800; margin:26px 0 10px; }
p.doc { color:var(--dim); line-height:1.6; margin-bottom:10px; }
.doc b, .doc strong { color:var(--text); }
a.lnk { color:#7fabff; text-decoration:none; }
a.lnk:hover { text-decoration:underline; }

@media(max-width:1100px) {
  #pane-left,#pane-right { width:200px; }
}
@media(max-width:860px) {
  #sidebar { width:60px; } .logo { padding:16px 8px; font-size:14px; } .navbtn { padding:9px 8px; font-size:11px; }
  #pane-left { width:170px; } #pane-right { display:none; }
}