:root{
  --bg:#f1eee6;
  --paper:#fbfaf6;
  --panel:#fffdf8;
  --ink:#211f1b;
  --ink-soft:#4b463e;
  --muted:#8b8376;
  --line:#e2dccf;
  --line-strong:#cfc7b7;
  --brass:#a98555;
  --brass-soft:#f2e9da;
  --shadow:0 8px 30px rgba(44,38,28,.08);
  --radius:12px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--ink);
  background:var(--bg);
  font:14px/1.45 "Segoe UI",system-ui,-apple-system,Arial,sans-serif;
  height:100vh;
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
button,input{font:inherit}
button{cursor:pointer}
a{color:inherit}

/* ---------- header ---------- */
.top{
  flex:0 0 62px;
  display:flex;
  align-items:center;
  gap:24px;
  padding:0 20px;
  background:var(--panel);
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:20;
}
.brand{display:flex;align-items:center;gap:11px;min-width:270px}
.brand-mark{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--brass);
  color:var(--brass);
  display:grid;place-items:center;
  font:600 19px/1 Georgia,serif;
}
.brand-title{font:600 16px/1.15 Georgia,serif;letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.35px;margin-top:2px;text-transform:lowercase}
.mode-switch{
  display:flex;
  padding:3px;
  background:#f0ece3;
  border:1px solid var(--line);
  border-radius:9px;
}
.mode-btn{
  border:0;background:transparent;color:var(--ink-soft);
  padding:7px 14px;border-radius:6px;font-size:12.5px;
  white-space:nowrap;
}
.mode-btn.active{background:var(--ink);color:#fff;box-shadow:0 1px 3px rgba(0,0,0,.16)}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.catalog-link{font-size:12px;color:var(--muted);text-decoration:none;border-bottom:1px dotted var(--line-strong);padding-bottom:2px}
.catalog-link:hover{color:var(--brass);border-color:var(--brass)}

/* ---------- layout ---------- */
.layout{
  flex:1;
  min-height:0;
  display:grid;
  grid-template-columns:330px minmax(0,1fr) 310px;
}
.library,.inspector{min-height:0;display:flex;flex-direction:column;background:var(--panel)}
.library{border-right:1px solid var(--line)}
.inspector{border-left:1px solid var(--line)}
.tabs{
  flex:0 0 auto;
  min-height:44px;
  display:flex;flex-wrap:wrap;gap:3px;padding:10px 10px 8px;overflow:visible;
  border-bottom:1px solid var(--line);
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  border:1px solid transparent;background:transparent;color:var(--muted);
  padding:5px 5px;border-radius:14px;font-size:10.5px;white-space:nowrap;
}
.tab:hover{color:var(--ink)}
.tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.library-head{
  flex:0 0 auto;
  display:flex;align-items:baseline;gap:8px;
  padding:12px 14px 4px;
}
.library-title{font:600 15px/1.2 Georgia,serif}
.library-count{font-size:11px;color:var(--muted);margin-left:auto}
.search-wrap{flex:0 0 auto;padding:4px 12px 10px}
.search-wrap input{
  width:100%;border:1px solid var(--line);background:#fff;border-radius:8px;
  padding:8px 10px;font-size:12.5px;outline:none;color:var(--ink);
}
.search-wrap input:focus{border-color:var(--brass);box-shadow:0 0 0 3px rgba(169,133,85,.10)}
.grid{
  overflow:auto;
  padding:0 10px 22px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:8px;
  align-content:start;
  min-height:0;
}
.card{
  border:1px solid var(--line);
  background:#fff;
  border-radius:9px;
  padding:7px 6px 6px;
  display:flex;flex-direction:column;align-items:stretch;gap:3px;
  text-align:center;color:var(--ink);
  min-width:0;
  transition:border-color .12s, box-shadow .12s, transform .12s;
}
.card:hover{border-color:var(--brass);box-shadow:0 3px 12px rgba(80,60,30,.07)}
.card.sel{border-color:var(--brass);background:var(--brass-soft);box-shadow:0 0 0 2px rgba(169,133,85,.14)}
.card .thumb{
  height:96px;display:flex;align-items:flex-end;justify-content:center;
  padding:2px 2px 0;overflow:hidden;
}
.card .thumb img{max-height:96px;max-width:100%;object-fit:contain;filter:contrast(1.06)}
.card .num{font-size:11.5px;font-weight:600;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card .sub{font-size:10px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card.wide{grid-column:1/-1;flex-direction:row;align-items:center;text-align:left;gap:10px;padding:8px}
.card.wide .thumb{width:80px;height:74px;flex:0 0 80px}
.card.wide .thumb img{max-height:72px}
.card.wide .meta{min-width:0}
.card .badge{
  display:inline-block;font-size:9.5px;line-height:1;
  color:var(--brass);border:1px solid rgba(169,133,85,.45);
  border-radius:9px;padding:2px 5px;margin-top:1px;
}
.grid-empty{grid-column:1/-1;color:var(--muted);font-size:12px;padding:16px 6px;line-height:1.5}

/* ---------- workspace ---------- */
.workspace{min-width:0;min-height:0;display:flex;flex-direction:column;background:var(--bg)}
.stage{
  position:relative;
  flex:1;min-height:0;
  overflow:hidden;
  background:
    radial-gradient(120% 85% at 50% 10%,rgba(255,255,255,.9),rgba(255,255,255,0) 70%),
    var(--paper);
  border-bottom:1px solid var(--line);
}
.stage:after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 60px rgba(70,58,38,.05);
}
.scene{
  position:absolute;
  left:50%;bottom:84px;
  width:0;height:0;
  transform-origin:0 0;
  will-change:transform;
}
.grid-lines{
  position:absolute;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(61,53,40,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(61,53,40,.055) 1px,transparent 1px);
  background-size:500px 500px;
  border-left:1px solid rgba(61,53,40,.08);
  border-bottom:1px solid rgba(61,53,40,.08);
}
.ground{
  position:absolute;
  height:2px;background:rgba(50,44,34,.55);
  box-shadow:0 2px 0 rgba(50,44,34,.06);
}
.ground:after{
  content:"";position:absolute;left:50%;top:-2px;width:9px;height:9px;
  transform:translateX(-50%) rotate(45deg);
  background:var(--paper);border:1px solid rgba(50,44,34,.45);
}
.parts{position:absolute;left:0;top:0}
.part{
  position:absolute;
  cursor:pointer;
  transition:filter .12s;
}
.part img{display:block;width:100%;height:100%;object-fit:fill;pointer-events:none;user-select:none}
.part:hover{filter:drop-shadow(0 0 2px rgba(169,133,85,.55))}
.part.sel{filter:drop-shadow(0 0 3px rgba(169,133,85,.85))}
.part.sel:after{
  content:"";position:absolute;inset:-3px;border:1px dashed rgba(169,133,85,.85);
  border-radius:2px;pointer-events:none;
}
.head-backdrop{
  position:absolute;background:#fff;border-radius:50%;
  box-shadow:0 0 0 1px rgba(0,0,0,.02) inset;
}
.center-stem{
  position:absolute;background:#2a2721;border-radius:2px;
}
.socket{
  position:absolute;background:#2a2721;border-radius:2px 2px 0 0;
}
.stage-empty{
  position:absolute;inset:0;display:grid;place-items:center;
  color:var(--muted);font-size:14px;letter-spacing:.2px;
  pointer-events:none;text-align:center;padding:30px;
}
.stage-tag{
  position:absolute;left:18px;top:14px;
  font-size:11px;color:var(--muted);
  background:rgba(255,253,248,.88);
  border:1px solid var(--line);
  border-radius:20px;
  padding:4px 10px;
  max-width:60%;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  backdrop-filter:blur(3px);
}
.ruler{
  position:absolute;left:14px;top:50px;bottom:96px;
  width:42px;pointer-events:none;
}
.ruler .tick{
  position:absolute;left:0;width:100%;
  border-top:1px solid rgba(70,60,44,.20);
  font-size:9.5px;color:var(--muted);padding-left:6px;line-height:1;
}
.ruler .tick span{position:relative;top:-6px;background:rgba(251,250,246,.85);padding:0 2px}
.ruler .tick.major{border-color:rgba(70,60,44,.40)}

/* ---------- toolbar ---------- */
.toolbar{
  flex:0 0 58px;
  display:flex;align-items:center;gap:10px;
  padding:0 12px;
  background:var(--panel);
  border-top:1px solid var(--line);
}
.control{display:flex;align-items:center;gap:7px;font-size:11.5px;color:var(--muted);white-space:nowrap}
.control input[type=range]{width:96px;accent-color:var(--brass)}
.control output{font-size:11.5px;color:var(--ink);min-width:42px;font-variant-numeric:tabular-nums}
.spacer{flex:1;min-width:2px}
.btn{
  border:1px solid var(--ink);background:var(--ink);color:#fff;
  border-radius:8px;padding:8px 11px;font-size:12px;line-height:1;
  transition:transform .1s,opacity .1s,background .1s;white-space:nowrap;
}
.btn:hover{opacity:.9}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line-strong)}
.btn.ghost:hover{border-color:var(--brass);color:var(--brass)}
.btn.tiny{padding:6px 10px;font-size:11px}

/* ---------- inspector ---------- */
.inspector-head{padding:16px 16px 10px;border-bottom:1px solid var(--line)}
.inspector-title{font:600 15px/1.2 Georgia,serif}
.inspector-sub{font-size:11px;color:var(--muted);margin-top:3px}
.summary{padding:8px 16px 4px;flex:0 1 auto;overflow:auto;min-height:0;max-height:44vh}
.srow{
  display:flex;align-items:flex-start;gap:8px;
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.srow:last-child{border-bottom:0}
.srow .k{font-size:10.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.55px;width:78px;flex:0 0 78px;padding-top:1px}
.srow .v{font-size:12.5px;line-height:1.3;min-width:0;flex:1}
.srow .v b{font-weight:600}
.srow .v small{display:block;font-size:10.5px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.srow .x{
  border:0;background:transparent;color:var(--muted);font-size:15px;line-height:1;
  padding:0 2px;margin-left:auto;
}
.srow .x:hover{color:#b44934}
.srow.empty .v{color:#b9b2a5}
.dims{
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;
  background:var(--line);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.dims>div{background:#fcfaf5;padding:9px 10px}
.dims span{display:block;font-size:9.5px;text-transform:uppercase;letter-spacing:.45px;color:var(--muted);white-space:nowrap}
.dims b{display:block;font-size:12.5px;font-weight:600;margin-top:3px;font-variant-numeric:tabular-nums}
.dims .warn{
  grid-column:1/-1;background:#fbf1e2;color:#8a5a2b;
  padding:8px 10px;font-size:10.5px;line-height:1.4;
  border-top:1px solid #efdfc8;
}
.fine{
  border-top:1px solid var(--line);
  padding:12px 16px 14px;
  background:#fcfaf5;
}
.fine-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}
.fine-head>span:first-child{font-size:10.5px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted)}
.fine-target{font-size:11px;color:var(--brass)}
.fine-row{display:grid;grid-template-columns:54px 1fr 40px;align-items:center;gap:7px;margin:5px 0;font-size:11px;color:var(--muted)}
.fine-row input[type=range]{width:100%;accent-color:var(--brass)}
.fine-row output{text-align:right;color:var(--ink);font-variant-numeric:tabular-nums;font-size:11px}
.fine .btn{width:100%;margin-top:7px}
.inspector-note{
  margin-top:auto;
  border-top:1px solid var(--line);
  padding:12px 16px 18px;
  font-size:10.8px;line-height:1.55;color:var(--muted);
}
.inspector-note strong{color:var(--ink-soft);font-weight:600}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:76px;transform:translate(-50%,12px);
  background:var(--ink);color:#fff;font-size:12px;
  padding:9px 15px;border-radius:22px;box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;
  z-index:100;max-width:80vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* scrollbars */
.grid::-webkit-scrollbar,.summary::-webkit-scrollbar{width:8px}
.grid::-webkit-scrollbar-thumb,.summary::-webkit-scrollbar-thumb{background:#d9d2c4;border-radius:8px}
.grid::-webkit-scrollbar-track,.summary::-webkit-scrollbar-track{background:transparent}

@media (max-width:1420px){
  #fitBtn{display:none}
  .toolbar{gap:8px}
  .control input[type=range]{width:82px}
  .btn{padding:8px 9px}
}
@media (max-width:1180px){
  .layout{grid-template-columns:290px minmax(0,1fr) 270px}
  .brand{min-width:0}
  .brand-sub{display:none}
  .catalog-link{display:none}
}
@media (max-width:900px){
  .layout{grid-template-columns:260px minmax(0,1fr)}
  .inspector{display:none}
  .top{flex-wrap:wrap;height:auto;padding:8px 12px;gap:10px}
  .mode-switch{order:3}
}