:root{
  --bg:#101317; --bg2:#181c22; --bg3:#212730; --line:#2c333d;
  --txt:#dae1e9; --dim:#8a96a5; --acc:#ff8a3d; --acc2:#ffb37a;
  --good:#4ade80; --bad:#f87171; --warn:#fbbf24;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;user-select:none;}
html,body{margin:0;padding:0;height:100%;overflow:hidden;
  font-family:"Segoe UI",Roboto,-apple-system,system-ui,sans-serif;
  background:var(--bg);color:var(--txt);}

#app{display:flex;flex-direction:column;height:100dvh;}
header{display:flex;align-items:center;gap:9px;padding:9px 12px;
  padding-top:calc(9px + env(safe-area-inset-top));
  background:var(--bg2);border-bottom:1px solid var(--line);flex:0 0 auto;}
.logo{font-weight:800;letter-spacing:.5px;font-size:15px;}
.logo b{color:var(--acc);}
.spend{margin-left:auto;font-size:13px;font-weight:700;white-space:nowrap;}
.spend .num{color:var(--acc);}
.hbtn{background:none;border:1px solid var(--line);color:var(--txt);border-radius:7px;
  font:inherit;font-size:12px;font-weight:600;padding:0 11px;min-height:34px;cursor:pointer;}
.hbtn.act{border-color:var(--acc);color:var(--acc2);}

/* ---------- stage ---------- */
#view{flex:1;min-height:0;position:relative;overflow:hidden;
  background:
    radial-gradient(ellipse 70% 55% at 50% 42%,#2a323c 0%,rgba(16,19,23,0) 70%),
    linear-gradient(180deg,#161a20 0%,#101317 55%,#0b0e11 100%);}
#gl{position:absolute;inset:0;}
#gl canvas{display:block;width:100% !important;height:100% !important;touch-action:none;cursor:grab;}
body.orbiting #gl canvas,body.orbiting #pv3d canvas{cursor:grabbing;}
body.panning #gl canvas,body.panning #pv3d canvas{cursor:move;}
#leads{position:absolute;inset:0;width:100%;height:100%;display:block;pointer-events:none;}
#nodes{position:absolute;inset:0;pointer-events:none;}
#nodes,#leads{transition:opacity .18s;}
body.orbiting #nodes,body.orbiting #leads,body.animating #nodes,body.animating #leads{opacity:0;pointer-events:none;}
#viewnote{position:absolute;left:12px;bottom:9px;right:12px;font-size:10.5px;color:var(--dim);
  pointer-events:none;line-height:1.5;}
#viewnote b{color:var(--acc2);font-weight:600;}
#nogl{position:absolute;inset:0;display:none;align-items:center;justify-content:center;text-align:center;
  padding:30px;color:var(--dim);font-size:13px;line-height:1.6;}
#nogl.on{display:flex;}

/* ---------- mount markers ---------- */
.node{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;
  display:flex;align-items:center;gap:7px;height:30px;padding:0 11px 0 4px;
  border-radius:999px;border:1px solid var(--line);background:rgba(18,22,27,.94);
  color:var(--txt);font:inherit;font-size:10.5px;font-weight:700;cursor:pointer;
  white-space:nowrap;backdrop-filter:blur(3px);}
.node::before{content:"";position:absolute;inset:-9px -6px;}
.node .dot{width:22px;height:22px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;font-size:13px;line-height:1;background:var(--bg3);color:var(--dim);}
.node .lbl{max-width:104px;overflow:hidden;text-overflow:ellipsis;}
.node.on{border-color:transparent;background:transparent;padding:0;gap:0;height:auto;}
.node.on .dot{width:15px;height:15px;background:rgba(12,15,19,.85);color:transparent;
  border:2px solid var(--acc);box-shadow:0 0 0 2px rgba(12,15,19,.6);}
.node.on .lbl{display:none;}
.node.on.sel{border-color:var(--acc);background:rgba(18,22,27,.94);padding:0 11px 0 4px;gap:7px;height:30px;}
.node.on.sel .dot{width:22px;height:22px;background:var(--acc);color:#241202;border:none;}
.node.on.sel .lbl{display:inline;}
.node.empty{border-style:dashed;color:var(--dim);}
.node.empty .dot{color:var(--acc);font-weight:800;}
.node.lock{border-style:dotted;border-color:#39424e;color:#5c6673;opacity:.75;}
.node.lock .dot{background:transparent;border:1px dotted #4a5461;color:transparent;width:13px;height:13px;}
.node.need{border-color:var(--acc);border-style:solid;color:var(--acc2);box-shadow:0 0 0 3px rgba(255,138,61,.13);}
.node.sel{border-color:var(--acc);box-shadow:0 0 0 3px rgba(255,138,61,.24);}
body.lean .node.on{display:none;}

/* ---------- bottom bar ---------- */
#bottom{flex:0 0 auto;display:flex;background:var(--bg2);border-top:1px solid var(--line);}
#stats{flex:1;padding:10px 12px;min-width:0;}
.srow{display:flex;align-items:center;gap:9px;margin-bottom:6px;}
.srow:last-child{margin-bottom:0;}
.slabel{width:84px;flex:0 0 auto;font-size:9.5px;color:var(--dim);text-transform:uppercase;letter-spacing:.5px;}
.sbar{flex:1;height:7px;background:var(--bg3);border-radius:4px;overflow:hidden;}
.sfill{display:block;height:100%;border-radius:4px;transition:width .22s ease,background .22s ease;}
.sval{width:74px;flex:0 0 auto;text-align:right;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;}
.sval .delta{font-size:10px;font-weight:700;margin-left:4px;}
.up{color:var(--good);} .down{color:var(--bad);}
#contract{flex:1;padding:10px 12px;min-width:0;border-left:1px solid var(--line);}
.ctitle{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.7px;color:var(--acc);
  display:flex;align-items:center;gap:8px;}
.ctitle .pay{margin-left:auto;color:var(--good);}
.cdesc{font-size:11.5px;color:var(--dim);margin:5px 0 8px;line-height:1.45;}
.reqs{display:flex;flex-wrap:wrap;gap:6px;}
.req{font-size:10.5px;font-weight:700;border-radius:7px;padding:4px 8px;
  background:var(--bg3);border:1px solid var(--line);color:var(--dim);}
.req.ok{color:var(--good);border-color:rgba(74,222,128,.45);background:rgba(74,222,128,.10);}
.req.no{color:var(--bad);border-color:rgba(248,113,113,.40);background:rgba(248,113,113,.08);}
#deliver{width:100%;margin-top:9px;border:none;border-radius:8px;font:inherit;font-size:13px;
  font-weight:800;min-height:44px;cursor:pointer;background:var(--acc);color:#241202;}
#deliver:disabled{background:var(--bg3);color:var(--dim);cursor:default;}

/* ---------- picker sheet ---------- */
#scrim{position:fixed;inset:0;z-index:40;background:rgba(6,8,10,.5);display:none;}
#scrim.on{display:block;}
#sheet{position:fixed;z-index:50;background:var(--bg2);display:none;flex-direction:column;
  border-left:1px solid var(--line);box-shadow:-16px 0 44px rgba(0,0,0,.55);top:0;right:0;bottom:0;width:390px;}
#sheet.on{display:flex;}
.sheeth{display:flex;align-items:center;gap:10px;padding:12px;padding-top:calc(12px + env(safe-area-inset-top));
  border-bottom:1px solid var(--line);flex:0 0 auto;}
.sheeth .st{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.7px;}
.sheeth .ss{font-size:11px;color:var(--dim);margin-left:auto;}
#sheetX{background:var(--bg3);border:none;color:var(--txt);border-radius:8px;font:inherit;
  font-size:15px;font-weight:700;width:38px;height:38px;cursor:pointer;flex:0 0 auto;}
.sheetb{flex:1;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;
  padding:10px;padding-bottom:calc(14px + env(safe-area-inset-bottom));}
.sheetnote{font-size:11px;color:var(--dim);line-height:1.5;margin:0 2px 10px;}
.sheetlock{font-size:11.5px;color:var(--warn);line-height:1.5;margin:0 2px 10px;
  background:rgba(251,191,36,.09);border:1px solid rgba(251,191,36,.30);border-radius:8px;padding:9px 11px;}
.part{display:flex;flex-direction:column;gap:6px;background:var(--bg3);border:1px solid var(--line);
  border-radius:9px;padding:10px;margin-bottom:8px;cursor:pointer;min-height:52px;}
.part.on{border-color:var(--acc);background:rgba(255,138,61,.10);}
.part.no{opacity:.42;cursor:default;}
.part .ptop{display:flex;align-items:center;gap:10px;}
.part .pn{flex:1;font-size:13px;font-weight:700;color:#fff;}
.part .pc{font-size:13px;font-weight:800;color:var(--acc);white-space:nowrap;}
.part .pwhy{font-size:10.5px;color:var(--bad);}
.part.rm{background:transparent;border-style:dashed;}
.part.rm .pn{color:var(--bad);}
.part .pcasc{font-size:10.5px;color:var(--warn);line-height:1.45;}
.part .pconf{font-size:10.5px;color:#f0a3c8;line-height:1.45;}
.part .popens{font-size:10.5px;color:var(--good);line-height:1.45;}
.thumb{width:84px;height:54px;flex:0 0 auto;border-radius:7px;overflow:hidden;cursor:zoom-in;
  border:1px solid var(--line);background:radial-gradient(ellipse at 50% 45%,#2a323c 0%,#171b21 75%);}
.thumb img{width:100%;height:100%;display:block;object-fit:contain;}
.part.rm .thumb{opacity:.75;}
.chips{display:flex;flex-wrap:wrap;gap:5px;}
.chip{font-size:10px;font-weight:700;border-radius:999px;padding:2px 7px;background:var(--bg2);color:var(--dim);}
.chip.g{background:rgba(74,222,128,.15);color:var(--good);}
.chip.b{background:rgba(248,113,113,.15);color:var(--bad);}

/* ---------- overlays ---------- */
.ovl{position:fixed;inset:0;z-index:70;display:none;align-items:center;justify-content:center;
  background:rgba(6,8,10,.85);padding:16px;}
.ovl.on{display:flex;}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:20px;
  max-width:440px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,.6);}
.card h2{margin:0 0 6px;font-size:19px;}
.card p{font-size:13px;line-height:1.6;color:var(--dim);margin:0 0 14px;}
.card .big{font-size:15px;font-weight:800;color:var(--acc);}
.cbtns{display:flex;gap:9px;}
.cbtns button{flex:1;border:none;border-radius:8px;font:inherit;font-size:13px;font-weight:700;
  min-height:44px;cursor:pointer;background:var(--acc);color:#241202;}
.cbtns button.ghost{background:var(--bg3);color:var(--txt);}
#shareIn{width:100%;background:var(--bg3);border:1px solid var(--line);color:var(--txt);
  border-radius:8px;padding:10px;font:inherit;font-size:11.5px;margin-bottom:12px;user-select:text;}

/* ---------- part viewer ---------- */
.ovl.pv{flex-direction:column;align-items:stretch;justify-content:flex-start;padding:0;
  background:radial-gradient(ellipse 70% 55% at 50% 40%,#2a323c 0%,rgba(16,19,23,0) 70%),#0f1216;}
.ovl.pv.on{display:flex;}
#pvX{position:absolute;top:calc(12px + env(safe-area-inset-top));right:12px;z-index:2;
  width:42px;height:42px;border:none;border-radius:10px;background:rgba(33,39,48,.92);
  color:var(--txt);font:inherit;font-size:17px;font-weight:700;cursor:pointer;}
#pvStage{flex:1;min-height:0;position:relative;}
#pv3d{position:absolute;inset:0;cursor:grab;}
#pv3d canvas{display:block;width:100% !important;height:100% !important;touch-action:none;cursor:grab;}
.pvhint{position:absolute;left:0;right:0;bottom:6px;text-align:center;font-size:10.5px;color:var(--dim);pointer-events:none;}
.pvinfo{flex:0 0 auto;padding:14px 18px;padding-bottom:calc(18px + env(safe-area-inset-bottom));
  background:var(--bg2);border-top:1px solid var(--line);}
.pvtop{display:flex;align-items:baseline;gap:12px;}
.pvname{font-size:18px;font-weight:800;color:#fff;flex:1;}
.pvcost{font-size:16px;font-weight:800;color:var(--acc);}
.pvslot{font-size:11px;color:var(--dim);text-transform:uppercase;letter-spacing:.6px;margin:2px 0 10px;}

@media (hover:hover) and (pointer:fine){
  .node:hover{border-color:var(--acc);color:#fff;}
  .node.on:hover{padding:0 11px 0 4px;gap:7px;height:30px;border-color:var(--acc);background:rgba(18,22,27,.94);}
  .node.on:hover .dot{width:22px;height:22px;background:var(--acc);color:#241202;border:none;}
  .node.on:hover .lbl{display:inline;}
  .part:not(.no):hover{border-color:var(--acc2);}
  .hbtn:hover{border-color:var(--acc);color:#fff;}
}
@media (hover:none),(pointer:coarse){
  .node:active,.part:active{filter:brightness(1.3);}
  .hbtn:active,#deliver:active,.cbtns button:active{filter:brightness(1.2);}
}
@media (max-width:820px){
  #bottom{flex-direction:column;}
  #stats{padding:8px 10px;} .srow{margin-bottom:5px;}
  #contract{padding:8px 10px;border-left:none;border-top:1px solid var(--line);}
  .cdesc{margin:4px 0 7px;font-size:11px;}
  .sval{width:68px;}
  #sheet{top:auto;left:0;right:0;bottom:0;width:auto;max-height:76dvh;
    border-left:none;border-top:1px solid var(--line);border-radius:14px 14px 0 0;
    box-shadow:0 -16px 44px rgba(0,0,0,.5);}
  .sheeth{padding-top:12px;}
  .thumb{width:72px;height:48px;}
}
@media (max-width:430px){
  header{gap:6px;padding-left:10px;padding-right:10px;}
  .logo{font-size:13px;letter-spacing:.3px;}
  .hbtn{padding:0 8px;font-size:11.5px;}
  .spend{font-size:12px;}
}