*{margin:0;padding:0;box-sizing:border-box;user-select:none}
:root{
  --bg:#060810;--s1:#0b0e1a;--card:#111525;--card2:#181e35;
  --blue:#19d4ff;--blue2:#0099e6;--bg3:rgba(25,212,255,.1);--bb:rgba(25,212,255,.18);
  --green:#00e5a0;--amber:#ffb830;--purple:#a78bfa;--pink:#f472b6;
  --t:#dde5f4;--m:#4d5a7a;--m2:#7a8fb8;
  --fh:'Unbounded',sans-serif;--fb:'Onest',sans-serif;--fm:'JetBrains Mono',monospace;
}
html,body{height:100%;overflow:hidden}
body{background:var(--bg);color:var(--t);font-family:var(--fb);display:flex;flex-direction:column}

/* TOPBAR */
.topbar{
  display:flex;align-items:center;gap:1rem;
  padding:.75rem 1.2rem;
  background:rgba(6,8,16,.95);border-bottom:1px solid rgba(25,212,255,.08);
  flex-shrink:0;z-index:100;
}
.logo-sm{font-family:var(--fh);font-size:.82rem;font-weight:900;letter-spacing:-.04em}
.lp{color:var(--blue)}.li{color:var(--t)}
.topbar-sep{width:1px;height:20px;background:rgba(255,255,255,.08)}
.topbar-title{font-family:var(--fm);font-size:.7rem;color:var(--m2);letter-spacing:.08em}
.topbar-actions{display:flex;gap:.5rem;margin-left:auto}
.tb-btn{
  padding:.4rem .9rem;border-radius:7px;font-size:.78rem;font-family:var(--fb);
  cursor:pointer;transition:.15s;border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);color:var(--m2);
}
.tb-btn:hover{border-color:var(--bb);color:var(--blue)}
.tb-btn.primary{background:linear-gradient(105deg,var(--blue2),var(--blue));color:#030508;border:none;font-weight:600}
.tb-btn.primary:hover{opacity:.9}
.tb-btn.danger{border-color:rgba(239,68,68,.3);color:#ef4444}
.tb-btn.danger:hover{background:rgba(239,68,68,.08)}

/* LAYOUT */
.workspace{display:flex;flex:1;overflow:hidden}

/* SIDEBAR LEFT */
.sidebar{
  width:240px;flex-shrink:0;
  background:var(--s1);border-right:1px solid rgba(255,255,255,.05);
  display:flex;flex-direction:column;overflow:hidden;
}
.sb-section{padding:.9rem 1rem;border-bottom:1px solid rgba(255,255,255,.04)}
.sb-label{font-family:var(--fm);font-size:.6rem;color:var(--m);letter-spacing:.1em;margin-bottom:.7rem}
.level-list{display:flex;flex-direction:column;gap:.35rem}
.level-item{
  display:flex;align-items:center;gap:.6rem;
  padding:.5rem .7rem;border-radius:8px;
  background:var(--card);border:1px solid rgba(255,255,255,.04);
  cursor:pointer;transition:.15s;font-size:.82rem;
}
.level-item:hover{border-color:var(--bb)}
.level-item.active{border-color:var(--blue);background:var(--bg3)}
.level-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.level-count{font-family:var(--fm);font-size:.65rem;color:var(--m);margin-left:auto}

.sb-nodes{flex:1;overflow-y:auto;padding:.9rem 1rem}
.node-list-item{
  display:flex;align-items:center;gap:.6rem;
  padding:.45rem .7rem;border-radius:7px;margin-bottom:.3rem;
  cursor:pointer;font-size:.8rem;color:var(--m2);transition:.15s;
}
.node-list-item:hover{background:var(--card);color:var(--t)}
.node-list-item.sel{background:var(--card);color:var(--t);border:1px solid rgba(255,255,255,.06)}
.nli-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.nli-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nli-badge{font-family:var(--fm);font-size:.6rem;color:var(--m);background:rgba(255,255,255,.04);padding:.1rem .4rem;border-radius:4px}

/* CANVAS AREA */
.canvas-area{flex:1;position:relative;overflow:hidden;cursor:grab}
.canvas-area.dragging-canvas{cursor:grabbing}
#mainSvg{width:100%;height:100%}

/* PANEL RIGHT */
.panel{
  width:280px;flex-shrink:0;
  background:var(--s1);border-left:1px solid rgba(255,255,255,.05);
  display:flex;flex-direction:column;overflow:hidden;
}
.panel-empty{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:.7rem;color:var(--m);
}
.panel-empty .ico{font-size:2rem;opacity:.3}
.panel-empty p{font-size:.8rem;text-align:center;max-width:180px;line-height:1.5}

.panel-form{flex:1;overflow-y:auto;padding:1rem}
.pf-title{font-family:var(--fh);font-size:.88rem;font-weight:700;letter-spacing:-.02em;margin-bottom:1.1rem}
.field{margin-bottom:1rem}
.field label{display:block;font-family:var(--fm);font-size:.62rem;color:var(--m2);letter-spacing:.07em;margin-bottom:.4rem}
.field input,.field textarea,.field select{
  width:100%;padding:.55rem .75rem;
  background:var(--card2);border:1px solid rgba(255,255,255,.07);
  border-radius:8px;color:var(--t);font-family:var(--fb);font-size:.85rem;
  outline:none;transition:.15s;
}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--blue)}
.field textarea{resize:vertical;min-height:70px;line-height:1.5}
.field select option{background:var(--card2)}

.color-row{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:.35rem}
.color-chip{
  width:24px;height:24px;border-radius:6px;cursor:pointer;
  border:2px solid transparent;transition:.15s;
}
.color-chip.sel{border-color:var(--t);transform:scale(1.15)}

.panel-actions{padding:.9rem 1rem;border-top:1px solid rgba(255,255,255,.05);display:flex;gap:.5rem;flex-wrap:wrap}
.pa-btn{
  flex:1;padding:.5rem;border-radius:8px;font-size:.78rem;font-family:var(--fb);
  cursor:pointer;transition:.15s;border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);color:var(--m2);text-align:center;
}
.pa-btn:hover{border-color:var(--bb);color:var(--blue)}
.pa-btn.save{background:linear-gradient(105deg,var(--blue2),var(--blue));color:#030508;border:none;font-weight:600}
.pa-btn.del{border-color:rgba(239,68,68,.25);color:#ef4444}
.pa-btn.del:hover{background:rgba(239,68,68,.08)}
.pa-btn.add-child{border-color:rgba(0,229,160,.25);color:var(--green)}
.pa-btn.add-child:hover{background:rgba(0,229,160,.06)}

/* TOOLTIP */
.tooltip{
  position:fixed;pointer-events:none;z-index:999;
  background:var(--card2);border:1px solid var(--bb);border-radius:8px;
  padding:.5rem .8rem;font-size:.75rem;color:var(--t);
  font-family:var(--fm);max-width:220px;line-height:1.5;
  opacity:0;transition:opacity .15s;
}

/* MINIMAP */
.minimap{
  position:absolute;right:1rem;bottom:1rem;
  width:140px;height:90px;
  background:rgba(6,8,16,.85);border:1px solid rgba(255,255,255,.08);
  border-radius:10px;overflow:hidden;
}
.minimap canvas{width:100%;height:100%}

/* HELP */
.help-bar{
  position:absolute;bottom:1rem;left:50%;transform:translateX(-50%);
  display:flex;gap:1rem;
  background:rgba(6,8,16,.85);border:1px solid rgba(255,255,255,.06);
  border-radius:20px;padding:.35rem 1.1rem;
  font-family:var(--fm);font-size:.62rem;color:var(--m);white-space:nowrap;
}
.help-bar span{display:flex;align-items:center;gap:.35rem}
.hk{background:rgba(255,255,255,.07);padding:.1rem .35rem;border-radius:4px;color:var(--m2)}

/* ZOOM CONTROLS */
.zoom-ctrl{
  position:absolute;right:1rem;top:1rem;
  display:flex;gap:.35rem;
}
.zc-btn{
  width:30px;height:30px;border-radius:8px;
  background:rgba(6,8,16,.9);border:1px solid rgba(255,255,255,.08);
  color:var(--m2);font-size:.9rem;cursor:pointer;transition:.15s;
  display:flex;align-items:center;justify-content:center;
}
.zc-btn:hover{border-color:var(--bb);color:var(--blue)}

/* MODAL */
.modal-overlay{
  position:fixed;inset:0;z-index:1000;
  background:rgba(6,8,16,.88);backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:.2s;
}
.modal-overlay.open{opacity:1;pointer-events:all}
.modal{
  width:780px;max-width:96vw;max-height:88vh;
  background:var(--card);border:1px solid var(--bb);border-radius:20px;
  overflow:hidden;display:flex;flex-direction:column;
}
.modal-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:1.2rem 1.5rem;border-bottom:1px solid rgba(255,255,255,.06);
}
.modal-head h3{font-family:var(--fh);font-size:1rem;font-weight:700;letter-spacing:-.02em}
.modal-close{
  width:28px;height:28px;border-radius:8px;cursor:pointer;
  background:rgba(255,255,255,.06);border:none;color:var(--m2);font-size:1rem;
  display:flex;align-items:center;justify-content:center;transition:.15s;
}
.modal-close:hover{background:rgba(239,68,68,.12);color:#ef4444}
.modal-body{overflow-y:auto;padding:1.5rem;display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.tpl-card{
  background:var(--card2);border:1px solid rgba(255,255,255,.06);
  border-radius:14px;padding:1.2rem;cursor:pointer;transition:.2s;
}
.tpl-card:hover{border-color:var(--bb);transform:translateY(-2px)}
.tpl-icon{font-size:1.8rem;margin-bottom:.7rem}
.tpl-name{font-family:var(--fh);font-size:.88rem;font-weight:700;letter-spacing:-.02em;margin-bottom:.4rem}
.tpl-sub{font-size:.78rem;color:var(--m2);line-height:1.5;margin-bottom:.9rem}
.tpl-meta{font-family:var(--fm);font-size:.62rem;color:var(--m);display:flex;gap:.6rem;flex-wrap:wrap}
.tpl-tag{background:rgba(25,212,255,.08);border:1px solid rgba(25,212,255,.15);color:var(--blue);padding:.15rem .5rem;border-radius:4px}
.tpl-btn{
  width:100%;margin-top:.9rem;padding:.55rem;border-radius:8px;
  background:linear-gradient(105deg,var(--blue2),var(--blue));
  color:#030508;font-weight:600;font-size:.78rem;font-family:var(--fb);
  border:none;cursor:pointer;transition:.15s;
}
.tpl-btn:hover{opacity:.9}
@media(max-width:900px){.sidebar{width:170px}.panel{width:260px}.topbar{flex-wrap:wrap}.topbar-title{letter-spacing:0}}@media(max-width:600px){.sidebar{display:none}.workspace{flex-direction:column}.canvas-area{min-height:42vh;flex:1}.panel{width:100%;height:42vh;border-left:0;border-top:1px solid var(--bb)}.topbar-title{font-size:.6rem}.topbar-actions{margin-left:0;flex-wrap:wrap}.help-bar{display:none}}
.initially-hidden{display:none}
.storage-bar{display:flex;align-items:center;flex-wrap:wrap;gap:.6rem;padding:.6rem 1.2rem;border-bottom:1px solid var(--bb);flex-shrink:0}
.storage-bar p{flex:1;min-width:180px;font-size:.78rem;color:var(--m2);line-height:1.5}
.storage-bar .storage-error{color:var(--amber)}
.workspace-help{padding:.6rem 1.2rem;font-size:.78rem;color:var(--m2);line-height:1.5;flex-shrink:0}
button:disabled{opacity:.4;cursor:default}
[hidden]{display:none!important}
.panel-actions{flex-wrap:wrap}
.level-item,.node-list-item{width:100%;font-family:inherit;text-align:left;color:var(--t)}
.node-list-item{background:transparent;border:1px solid transparent;display:grid;grid-template-columns:8px minmax(0,1fr);gap:.25rem .6rem}
.nli-name{white-space:normal;overflow-wrap:anywhere}
.nli-badge{grid-column:2;justify-self:start;white-space:normal}
input,textarea{user-select:text}
button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
@media(max-width:600px){html,body{height:auto;min-height:100%;overflow:auto}.workspace{flex:none;overflow:visible}.canvas-area{flex:none;height:45vh;min-height:300px}.panel{height:55vh;min-height:350px}.workspace-help{font-size:.74rem}}
.metric-relations{font-size:.78rem;color:var(--m2);line-height:1.8}
.analytics-pixel{position:absolute; left:-9999px;}
/* Shared laboratory palette, with the existing editor state and controls. */
:root{--bg:#020c12;--s1:#041018;--card:#071923;--card2:#0b202c;--t:#e6f0f6;--m:#66899d;--m2:#8fadc0;--fh:'Onest',sans-serif}
body{background-image:linear-gradient(#0ca9d006 1px,transparent 1px),linear-gradient(90deg,#0ca9d006 1px,transparent 1px);background-size:42px 42px}.topbar{min-height:80px;padding:18px 28px;background:#020c12aa;gap:20px}.logo-sm{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:19px;letter-spacing:-.7px;font-weight:600}.logo-sm small{display:block;font:8px var(--fm);letter-spacing:2px;margin-top:5px;color:var(--m2)}.brand-orbit{font-size:38px;color:var(--blue);line-height:1}.topbar-title{font-size:9px;letter-spacing:1px}.tb-btn{border-color:#254452;border-radius:5px;background:#07192366;font-size:11px;padding:9px 12px}.storage-bar{padding:9px 28px;min-height:45px;border-color:#173b4766}.storage-bar p{font-size:10px}.storage-bar p:before{content:'●';color:#40da8d;margin-right:9px}.storage-bar p.storage-error:before{color:var(--amber)}.workspace-help{font-size:10px;padding:8px 28px;color:#648b9e}.sidebar{width:260px;background:#020c1299;border-color:#183747}.arch-intro{padding:25px 25px 18px}.arch-intro a{font:9px var(--fm);letter-spacing:1px;text-decoration:none;color:#94b7cb}.arch-intro h1{font-size:30px;line-height:1.12;letter-spacing:-.8px;margin:25px 0 14px;font-weight:500}.arch-intro p{font-size:12px;line-height:1.65;color:var(--m2)}.sb-section{padding:18px 22px}.sb-label{font-size:8px;letter-spacing:1.5px}.level-item{background:transparent;border-color:transparent;border-radius:0;font-size:11px;padding:12px 5px}.level-item.active{background:#0bc6ef0a;border-color:#0bc6ef33}.sb-nodes{padding:18px 22px}.node-list-item{font-size:11px}.nli-badge{font-size:8px}.model-workspace{min-width:0;flex:1;display:flex;flex-direction:column;position:relative}.goal-form{padding:20px 25px 5px}.goal-form label{display:block;font-size:19px;font-weight:600}.goal-form label small{display:block;color:var(--blue);font:9px var(--fm);letter-spacing:1.5px;margin-bottom:12px}.goal-form>div{display:flex;gap:12px;margin-top:16px}.goal-form input{min-width:0;flex:1;background:#0a1b25;border:1px solid #2c4654;color:var(--t);border-radius:8px;padding:12px 15px;font:12px var(--fb)}.goal-form button{border:1px solid var(--blue);background:#062532;color:var(--blue);width:42px;border-radius:50%;font-size:24px;cursor:pointer;box-shadow:0 0 18px #00cdff22}.goal-form p{font-size:10px;color:#618b9f;margin-top:8px;min-height:14px}.canvas-area{min-height:300px;background:radial-gradient(ellipse,#03527116,transparent 65%)}.zoom-ctrl{left:20px;top:16px;bottom:auto}.zc-btn{font-family:inherit}.minimap{opacity:.5}.help-bar{font-size:8px}.panel{width:320px;margin:15px 24px 18px 5px;border:1px solid #1a3c4c;border-radius:10px;background:linear-gradient(130deg,#071720bb,#031019dd)}.panel-eyebrow{padding:18px 18px 0;font:9px var(--fm);letter-spacing:1.8px;color:#87b4ca}.panel-form{padding:18px}.pf-title{font-size:19px;font-weight:600;color:#e6f2f7;margin:8px 0 24px}.pf-title:before{content:'Σ';display:inline-block;font-size:28px;color:var(--blue);margin-right:15px}.field{margin-bottom:14px}.field label{color:#95b6c9;font:9px var(--fb);letter-spacing:.4px}.field input,.field textarea,.field select{background:#0a1b25;border:1px solid #294757;border-radius:7px;color:#d4e7f2;font:11px var(--fb);padding:10px;user-select:text}.field textarea{min-height:57px}.panel-actions{padding:14px 18px;background:#04131c;border-color:#173849}.pa-btn.save{flex-basis:100%;padding:13px;background:#13c8ef;color:#011017;border-radius:6px}.panel-empty{padding:20px;font-size:12px;line-height:1.65;color:var(--m2)}.scheme-summary{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:12px 24px 22px}.scheme-summary>div{border:1px solid #193e4e;border-radius:9px;background:#05172299;padding:18px}.scheme-summary small{font-size:11px;color:#99c1d6}.scheme-summary p{font-size:10px;color:#80a3b6;line-height:1.6;margin-top:12px}.scheme-summary b{font-size:24px;color:#eaf6ff;margin-right:6px}.modal{background:#071923}.tpl-card{background:#0a202a}
@media(max-width:1200px){.sidebar{width:210px}.panel{width:280px;margin-right:12px}.topbar-title,.topbar-sep{display:none}.topbar{padding:14px 20px;gap:12px}.topbar-actions{flex-wrap:wrap}.tb-btn{padding:8px;font-size:10px}.arch-intro{padding:20px}.arch-intro h1{font-size:26px}.scheme-summary{margin:10px;gap:8px}.scheme-summary>div{padding:12px}}
@media(max-width:950px){.sidebar{width:180px}.arch-intro h1{font-size:24px}.panel{width:245px}.goal-form{padding:16px}.goal-form label{font-size:17px}.scheme-summary{grid-template-columns:1fr}.scheme-summary>div{padding:9px}.scheme-summary p{margin-top:4px}.scheme-summary b{font-size:18px}.topbar-actions{margin-left:0}.topbar{flex-wrap:wrap}.sb-section,.sb-nodes{padding:12px}}
@media(max-width:700px){html,body{height:auto;overflow:auto}.topbar{min-height:0}.workspace{display:flex;flex-direction:column;overflow:visible;flex:none}.sidebar{display:none}.model-workspace{flex:none;width:100%}.canvas-area{height:430px;min-height:430px;flex:none}.panel{width:calc(100% - 28px);height:560px;min-height:350px;margin:10px 14px 25px}.scheme-summary{grid-template-columns:1fr 1fr;margin:10px 14px}.topbar-actions{width:100%}.storage-bar,.workspace-help{padding:8px 18px}.goal-form{padding:20px 18px 8px}.modal-body{grid-template-columns:1fr}.help-bar{display:none}}
.logo-sm{color:var(--t)}.sidebar{overflow-y:auto}.sb-nodes{min-height:150px;flex-shrink:0}.zoom-ctrl{flex-direction:column}.model-workspace{min-height:0}.scheme-summary{flex-shrink:0}.panel-form{scrollbar-width:thin;scrollbar-color:#245165 transparent}
/* Original artwork extracted from arch.png and main.png. */
.logo-sm .brand-orbit{display:block;width:38px;height:41px;object-fit:contain;mix-blend-mode:screen}.pi-watermark{position:absolute;right:22px;top:0;width:184px;height:166px;object-fit:contain;opacity:.5;mix-blend-mode:screen;pointer-events:none;z-index:0}.goal-form{position:relative;z-index:1}.goal-form>div{position:relative}.arch-illustration{display:flex;align-items:center;justify-content:center;gap:18px;padding:0 20px 18px;border-bottom:1px solid #17384955}.sidebar-layers{width:65px;height:105px;object-fit:contain;mix-blend-mode:screen}.arch-illustration span{font:8px/2.7 var(--fm);letter-spacing:1.5px;color:#679db5}.sidebar{scrollbar-width:thin;scrollbar-color:#245165 transparent}@media(max-width:950px){.arch-illustration{gap:10px}.arch-illustration span{font-size:7px}.pi-watermark{width:130px;height:120px;opacity:.35}}@media(max-width:700px){.pi-watermark{width:100px;height:90px;right:15px;opacity:.25}}
.pi-watermark,.sidebar-layers{mask-image:linear-gradient(90deg,transparent,#000 14%,#000 85%,transparent),linear-gradient(transparent,#000 9%,#000 90%,transparent);mask-composite:intersect}