:root{
  --bg:#0a0d14; --panel:#10141f; --panel2:#0c101a; --edge:#1d2333;
  --text:#dfe6f3; --dim:#8a93a8;
  --sig:#4be1ff; --tex:#ffab4a; --aud:#7ef29a;
  --c-source:#7ef29a; --c-gen:#c792ea; --c-fx:#4bb3ff; --c-combine:#ffab4a;
  --c-signal:#4be1ff; --c-output:#ff6b81; --c-3d:#ffe14b;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  display:grid;grid-template-rows:46px 1fr;height:100vh;overflow:hidden;
  background:var(--bg);color:var(--text);
  font:13px/1.4 "Segoe UI",system-ui,sans-serif;
}
/* ---------- toolbar ---------- */
header{
  display:flex;align-items:center;gap:8px;padding:0 12px;
  background:var(--panel);border-bottom:1px solid var(--edge);
}
#logo{font-weight:700;letter-spacing:.5px;font-size:15px}
#logo span{color:var(--sig)}
header select,header button{
  background:#161c2b;color:var(--text);border:1px solid var(--edge);
  border-radius:6px;padding:4px 10px;font:12px inherit;cursor:pointer;
}
header select:hover,header button:hover{border-color:#33405f}
header button.on{border-color:var(--aud);color:var(--aud)}
.spacer{flex:1}
#toast{font-size:11px;opacity:0;transition:opacity .4s;max-width:340px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#toast.err{color:#ff8896}
#toast.ok{color:var(--aud)}
/* ---------- split-pane layout ----------
   left: visualisation · right: editors (node GUI above, script below)
   both splitters draggable; buttons on them collapse their pane        */
#main{display:flex;min-height:0;min-width:0}
#stagePane{flex:1 1 auto;min-width:0;position:relative;background:#000}
#stageCanvas{width:100%;height:100%;display:block}
#stageHint{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--dim);font-size:13px;pointer-events:none;text-align:center;padding:20px;
}
#stageHint b{color:var(--c-output);margin:0 4px}
#vsplit{
  flex:0 0 9px;background:var(--panel);cursor:col-resize;position:relative;z-index:12;
  border-left:1px solid var(--edge);border-right:1px solid var(--edge);
}
#vsplit:hover{background:#182034}
#collapseBtn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:20px;height:48px;padding:0;background:#161c2b;border:1px solid var(--edge);
  color:var(--dim);border-radius:6px;cursor:pointer;font-size:11px;
}
#collapseBtn:hover{color:var(--text);border-color:#33405f}
#rightPane{
  flex:0 0 auto;width:760px;max-width:88vw;min-width:280px;
  display:flex;flex-direction:column;min-height:0;background:var(--panel2);
}
body.rp-collapsed #rightPane{display:none}
body.rp-collapsed #vsplit{cursor:default}
#hsplit{
  flex:0 0 9px;background:var(--panel);cursor:row-resize;position:relative;z-index:12;
  border-top:1px solid var(--edge);border-bottom:1px solid var(--edge);
}
#hsplit:hover{background:#182034}
#scriptCollapseBtn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:48px;height:18px;padding:0;background:#161c2b;border:1px solid var(--edge);
  color:var(--dim);border-radius:6px;cursor:pointer;font-size:10px;line-height:1;
}
#scriptCollapseBtn:hover{color:var(--text);border-color:#33405f}
/* ---------- node editor (GUI, top-right) ---------- */
#editorWrap{flex:1 1 auto;min-height:0;position:relative}
#editor{position:absolute;inset:0;overflow:auto;background:var(--panel2)}
#plane{
  position:relative;width:2600px;height:1600px;
  background-image:radial-gradient(#1b2233 1px,transparent 1px);
  background-size:24px 24px;
}
#wiresSvg{position:absolute;top:0;left:0;pointer-events:none}
#editorHint{
  position:absolute;left:10px;bottom:8px;z-index:6;pointer-events:none;
  font-size:11px;color:var(--dim);background:rgba(10,13,20,.75);
  padding:3px 10px;border-radius:6px;max-width:calc(100% - 20px);
}
/* wires */
.wire{fill:none;stroke-width:2.2px;opacity:.9}
.wire.t-sig{stroke:var(--sig)} .wire.t-tex{stroke:var(--tex)} .wire.t-aud{stroke:var(--aud)}
.wire.sel{stroke:#fff;stroke-width:3.2px;opacity:1}
.wire.temp{stroke-dasharray:6 5;opacity:.7}
.wire-hit{fill:none;stroke:transparent;stroke-width:14px;pointer-events:stroke;cursor:pointer}
/* nodes */
.node{
  position:absolute;width:212px;background:#141926;border:1px solid #232b40;
  border-radius:8px;box-shadow:0 6px 20px rgba(0,0,0,.45);user-select:none;z-index:2;
}
.node .head{
  display:flex;align-items:center;gap:6px;padding:5px 9px;cursor:grab;
  border-bottom:1px solid #202840;border-radius:8px 8px 0 0;
}
.node .head .ttl{font-weight:600;font-size:12px}
.node .head .nid{color:var(--dim);font-size:10px;font-family:Consolas,monospace}
.node .head .del{
  margin-left:auto;background:none;border:none;color:var(--dim);cursor:pointer;
  font-size:14px;line-height:1;padding:0 2px;
}
.node .head .del:hover{color:#ff8896}
.cat-source .head{border-left:3px solid var(--c-source);background:linear-gradient(90deg,rgba(126,242,154,.14),transparent)}
.cat-gen .head{border-left:3px solid var(--c-gen);background:linear-gradient(90deg,rgba(199,146,234,.14),transparent)}
.cat-fx .head{border-left:3px solid var(--c-fx);background:linear-gradient(90deg,rgba(75,179,255,.14),transparent)}
.cat-combine .head{border-left:3px solid var(--c-combine);background:linear-gradient(90deg,rgba(255,171,74,.14),transparent)}
.cat-signal .head{border-left:3px solid var(--c-signal);background:linear-gradient(90deg,rgba(75,225,255,.14),transparent)}
.cat-output .head{border-left:3px solid var(--c-output);background:linear-gradient(90deg,rgba(255,107,129,.14),transparent)}
.cat-threeD .head{border-left:3px solid var(--c-3d);background:linear-gradient(90deg,rgba(255,225,75,.14),transparent)}
.node .body{padding:5px 0 7px}
.row{position:relative;display:flex;align-items:center;gap:6px;padding:2px 12px;min-height:20px}
.row label{
  width:58px;flex:none;font-size:10px;color:var(--dim);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.row.out{justify-content:flex-end}
.row.out label{text-align:right}
.row input[type=range]{flex:1;min-width:40px;height:14px;accent-color:var(--sig)}
.row input[type=checkbox]{accent-color:var(--sig)}
.row select{
  flex:1;background:#0e1320;color:var(--text);border:1px solid var(--edge);
  border-radius:4px;font-size:10px;padding:1px 2px;
}
.row .val{width:36px;flex:none;font-size:10px;text-align:right;color:var(--dim);font-family:Consolas,monospace}
.row .val.editable{cursor:text;text-decoration:underline dotted;text-underline-offset:2px}
.row .val.editable:hover{color:var(--text)}
.valedit{
  width:46px;flex:none;background:#0e1320;border:1px solid var(--sig);color:var(--text);
  border-radius:4px;font:10px Consolas,monospace;padding:1px 3px;text-align:right;outline:none;
}
.row input[type=text]{
  flex:1;min-width:40px;background:#0e1320;border:1px solid var(--edge);color:var(--text);
  border-radius:4px;font-size:10px;padding:2px 5px;font-family:Consolas,monospace;
}
.row input[type=color]{
  flex:1;min-width:30px;height:18px;padding:0 2px;background:#0e1320;
  border:1px solid var(--edge);border-radius:4px;cursor:pointer;
}
.row input.hueswatch{
  flex:none;width:24px;height:16px;padding:0 1px;margin-left:2px;
  background:#0e1320;border:1px solid var(--edge);border-radius:4px;cursor:pointer;
}
.row button.mini{
  flex:1;background:#0e1320;border:1px solid var(--edge);color:var(--dim);
  border-radius:4px;font-size:10px;padding:2px 5px;cursor:pointer;
}
.row button.mini:hover{border-color:#33405f;color:var(--text)}
.row.pinned input[type=range]{opacity:.2;pointer-events:none}
.row.pinned label,.row.pinned .val{color:var(--sig)}
.row.pinned .val{cursor:default;text-decoration:none}
/* ports */
.port{
  position:absolute;width:12px;height:12px;border-radius:50%;
  top:50%;transform:translateY(-50%);cursor:crosshair;
  border:2px solid var(--bg);z-index:3;
}
.port.in{left:-7px} .port.out{right:-7px}
.port.t-sig{background:var(--sig);color:var(--sig);box-shadow:0 0 calc(var(--v,0)*14px) var(--sig)}
.port.t-tex{background:var(--tex);color:var(--tex)}
.port.t-aud{background:var(--aud);color:var(--aud)}
.port:hover{transform:translateY(-50%) scale(1.3)}
body.wiring .port.compat{transform:translateY(-50%) scale(1.35);box-shadow:0 0 9px currentColor}
/* ---------- on-canvas node palette ---------- */
#nodeMenu{
  position:fixed;z-index:60;width:216px;max-height:70vh;overflow:auto;
  background:var(--panel);border:1px solid #2a3450;border-radius:10px;
  box-shadow:0 12px 34px rgba(0,0,0,.6);padding:6px;
}
#nodeMenu[hidden]{display:none}
#nodeMenu .nm-cat{
  font-size:9.5px;color:var(--dim);text-transform:uppercase;letter-spacing:1px;
  margin:7px 6px 3px;
}
#nodeMenu .nm-item{
  display:block;width:100%;text-align:left;background:none;border:none;
  color:var(--text);padding:4px 9px;border-radius:5px;cursor:pointer;font:12px inherit;
}
#nodeMenu .nm-item:hover{background:#1a2338;color:var(--sig)}
/* ---------- script editor (bottom-right) ---------- */
#scriptPanel{
  flex:0 0 auto;height:300px;min-height:0;display:flex;flex-direction:column;
  background:var(--panel);
}
#scriptPanel.collapsed{height:auto!important}
#scriptPanel.collapsed #scriptBox,#scriptPanel.collapsed #scriptStatus{display:none}
#scriptPanel .ph{
  display:flex;align-items:center;gap:6px;padding:7px 10px;
  border-bottom:1px solid var(--edge);font-size:11px;color:var(--dim);
  text-transform:uppercase;letter-spacing:1px;
}
#scriptPanel .ph button{
  background:#161c2b;color:var(--text);border:1px solid var(--edge);
  border-radius:5px;padding:3px 9px;font-size:11px;cursor:pointer;text-transform:none;letter-spacing:0;
}
#scriptPanel .ph button:hover{border-color:#33405f}
#applyBtn{color:var(--aud)}
#scriptBox{
  flex:1;resize:none;border:none;outline:none;padding:10px 12px;
  background:#0b0f18;color:#cfe3ff;
  font:11.5px/1.55 Consolas,"Cascadia Code",monospace;
  white-space:pre;tab-size:2;
}
#scriptStatus{
  min-height:26px;padding:5px 12px;font-size:11px;font-family:Consolas,monospace;
  border-top:1px solid var(--edge);color:var(--dim);
}
#scriptStatus.ok{color:var(--aud)}
#scriptStatus.err{color:#ff8896}
#scriptStatus.warn{color:var(--tex)}
/* ---------- input settings modal ---------- */
#modalOverlay{
  position:fixed;inset:0;z-index:55;display:flex;align-items:center;justify-content:center;
  background:rgba(5,7,12,.65);backdrop-filter:blur(3px);
}
#modalOverlay[hidden]{display:none}
.modal{
  width:400px;max-width:92vw;background:var(--panel);border:1px solid #2a3450;
  border-radius:12px;box-shadow:0 16px 48px rgba(0,0,0,.6);
}
.modal .mh{
  display:flex;align-items:center;padding:10px 14px;border-bottom:1px solid var(--edge);
  font-weight:600;font-size:13px;
}
.modal .mh button{
  margin-left:auto;background:none;border:none;color:var(--dim);
  font-size:17px;cursor:pointer;line-height:1;padding:0 2px;
}
.modal .mh button:hover{color:#ff8896}
#modalBody{padding:12px 14px 16px}
.mrow{display:flex;align-items:center;gap:10px;margin:9px 0}
.mrow>label{width:88px;flex:none;font-size:11px;color:var(--dim)}
.mrow select{
  flex:1;background:#0e1320;color:var(--text);border:1px solid var(--edge);
  border-radius:5px;font-size:12px;padding:4px 6px;min-width:0;
}
.mstatus{
  margin:4px 0 2px;font-size:11px;font-family:Consolas,monospace;color:var(--dim);
  min-height:16px;
}
.mstatus.on{color:var(--aud)}
.mbtns{display:flex;gap:8px;margin-top:12px}
.mbtns button{
  flex:1;background:#161c2b;color:var(--text);border:1px solid var(--edge);
  border-radius:6px;padding:7px 10px;font-size:12px;cursor:pointer;
}
.mbtns button:hover{border-color:#33405f}
.mbtns button.go{color:var(--aud)}
.mbtns button.stop{color:#ff8896}
.mbtns button:disabled{opacity:.4;cursor:default}
.mnote{font-size:10.5px;color:var(--dim);margin-top:10px;line-height:1.5}
/* ---------- help ---------- */
#helpOverlay{
  position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;
  background:rgba(5,7,12,.7);backdrop-filter:blur(4px);
}
#helpOverlay[hidden]{display:none}
#helpOverlay .card{
  max-width:640px;margin:20px;background:var(--panel);border:1px solid var(--edge);
  border-radius:12px;padding:22px 26px;font-size:13px;line-height:1.6;
  max-height:88vh;overflow:auto;
}
#helpOverlay h2{margin:0 0 10px;font-size:16px}
#helpOverlay code{background:#0b0f18;padding:1px 5px;border-radius:4px;font-size:11.5px}
#helpOverlay .sw{display:inline-block;width:9px;height:9px;border-radius:50%;margin:0 3px}
#helpClose{
  margin-top:8px;background:#161c2b;color:var(--text);border:1px solid var(--edge);
  border-radius:6px;padding:5px 16px;cursor:pointer;
}
/* ---------- additions: fractal category, split buttons, playlist, range graph ---------- */
:root{--c-fractal:#f07ae0}
.cat-fractal .head{border-left:3px solid var(--c-fractal);background:linear-gradient(90deg,rgba(240,122,224,.14),transparent)}
.node.wide{width:266px}
.split-btn{display:flex;align-items:stretch}
.split-btn button:first-child{border-radius:6px 0 0 6px;border-right:none}
.split-btn button.gear{border-radius:0 6px 6px 0;padding:4px 7px;font-size:11px}
.plrow{display:flex;align-items:center;gap:5px;padding:1px 12px;font-size:9.5px;color:var(--dim);font-family:Consolas,monospace}
.plrow.playing{color:var(--aud)}
.plrow .plname{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.plrow button{background:none;border:none;color:var(--dim);cursor:pointer;font-size:10px;padding:0 2px}
.plrow button:hover{color:#ff8896}
.pladd{display:flex;gap:4px;padding:2px 12px;align-items:center}
.pladd input[type=text]{flex:1;min-width:30px;background:#0e1320;border:1px solid var(--edge);color:var(--text);border-radius:4px;font-size:10px;padding:2px 5px;font-family:Consolas,monospace}
.pladd select{width:80px;background:#0e1320;color:var(--text);border:1px solid var(--edge);border-radius:4px;font-size:10px;padding:1px 2px}
.pladd input.plcount{width:34px;flex:none;background:#0e1320;border:1px solid var(--edge);color:var(--text);border-radius:4px;font-size:10px;padding:2px 3px;text-align:center;font-family:Consolas,monospace}
.rangegraph{display:block;margin:3px 12px 5px;background:#0b0f18;border:1px solid var(--edge);border-radius:5px}
/* ---------- additions: bool + playlist-control port/wire colors ---------- */
:root{--boolc:#ff5e9c;--ctlc:#b06cff}
.port.t-bool{background:var(--boolc);color:var(--boolc);box-shadow:0 0 calc(var(--v,0)*14px) var(--boolc)}
.port.t-ctl{background:var(--ctlc);color:var(--ctlc)}
.wire.t-bool{stroke:var(--boolc)}
.wire.t-ctl{stroke:var(--ctlc)}
/* ---------- additions: node renaming, playlist drag-reorder, popped-out layout ---------- */
.node .head .nid{cursor:text}
.node .head .nid:hover{color:var(--text);text-decoration:underline dotted;text-underline-offset:2px}
.nidedit{
  width:74px;background:#0e1320;border:1px solid var(--sig);color:var(--text);
  border-radius:4px;font:10px Consolas,monospace;padding:1px 3px;outline:none;
}
.plrow[draggable=true]{cursor:grab}
.plrow.dropover{outline:1px dashed var(--sig);outline-offset:-1px}
body.popped #stagePane,body.popped #vsplit{display:none}
body.popped #rightPane{flex:1 1 auto;width:auto!important;max-width:none}
/* ---------- additions: sort button, radio param groups ---------- */
#sortBtn{
  position:absolute;top:8px;right:14px;z-index:7;
  background:#161c2b;border:1px solid var(--edge);color:var(--dim);
  border-radius:6px;padding:3px 10px;font-size:11px;cursor:pointer;
}
#sortBtn:hover{color:var(--text);border-color:#33405f}
.radiogrp{display:flex;gap:9px;flex:1;font-size:10px;color:var(--text)}
.radiogrp label{display:flex;align-items:center;gap:3px;cursor:pointer}
.radiogrp input{accent-color:var(--sig);margin:0}
/* ---------- additions: fixed output resolution + hint toggle ---------- */
body.fixedres #stageCanvas{object-fit:contain;background:#000}
body.nohints #editorHint{display:none}
/* ---------- additions: file playlist pane, zoom, progress bars ---------- */
#plPane{
  flex:0 0 232px;display:flex;flex-direction:column;min-height:0;
  background:var(--panel);border-right:1px solid var(--edge);
}
#plPane .ph{
  display:flex;align-items:center;gap:6px;padding:7px 10px;
  border-bottom:1px solid var(--edge);font-size:11px;color:var(--dim);
  text-transform:uppercase;letter-spacing:1px;
}
#plPane .ph button{
  background:#161c2b;color:var(--text);border:1px solid var(--edge);
  border-radius:5px;padding:2px 8px;font-size:11px;cursor:pointer;
}
#plPane .ph button:hover{border-color:#33405f}
#plList{flex:1;overflow:auto;padding:4px 0}
.plitem{padding:3px 10px;font-size:10.5px;cursor:grab}
.plitem.playing{color:var(--aud)}
#plTransport{display:flex;gap:6px;padding:8px 10px;border-top:1px solid var(--edge)}
#plTransport button{
  flex:1;background:#161c2b;color:var(--text);border:1px solid var(--edge);
  border-radius:6px;padding:5px;cursor:pointer;
}
#plTransport button:hover{border-color:#33405f}
#plsplit{
  flex:0 0 9px;background:var(--panel);position:relative;z-index:12;
  border-right:1px solid var(--edge);
}
#plCollapseBtn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:20px;height:48px;padding:0;background:#161c2b;border:1px solid var(--edge);
  color:var(--dim);border-radius:6px;cursor:pointer;font-size:11px;
}
#plCollapseBtn:hover{color:var(--text);border-color:#33405f}
body.pl-collapsed #plPane{display:none}
#zoomCtl{position:absolute;top:8px;right:88px;z-index:7;display:flex;gap:3px}
#zoomCtl button{
  background:#161c2b;border:1px solid var(--edge);color:var(--dim);
  border-radius:6px;padding:3px 8px;font-size:11px;cursor:pointer;
}
#zoomCtl button:hover{color:var(--text);border-color:#33405f}
.pbar{
  position:relative;flex:1;height:10px;background:#0b0f18;
  border:1px solid var(--edge);border-radius:5px;cursor:pointer;overflow:hidden;
}
.pfill{
  position:absolute;left:0;top:0;bottom:0;width:0%;
  background:linear-gradient(90deg,var(--sig),#2b86b8);
}
.ptime{flex:none;font:9px Consolas,monospace;color:var(--dim);min-width:64px;text-align:right}