:root{color-scheme:dark}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:#0b0e14;color:#e9eef7}
a{color:#b6d4ff;text-decoration:none}
.wrap{max-width:1280px;margin:0 auto;padding:18px}
.card{background:#121826;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:14px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.muted{color:#9aa7bd}.small{font-size:12px}.mt{margin-top:10px}
.row{display:flex;align-items:center}.row.wrap{flex-wrap:wrap}.gap{gap:10px}.spacer{flex:1}
.btn{display:inline-flex;align-items:center;gap:8px;background:#1b4cff;border:1px solid rgba(255,255,255,.14);padding:10px 12px;border-radius:10px}
.btn2{display:inline-flex;align-items:center;gap:8px;background:#182033;border:1px solid rgba(255,255,255,.12);padding:10px 12px;border-radius:10px}
.btnDanger{display:inline-flex;align-items:center;gap:8px;background:#3a1420;border:1px solid rgba(255,255,255,.12);padding:10px 12px;border-radius:10px;color:#ffd1d1}
input,select,button{background:#0f1420;color:#e9eef7;border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:10px}
button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}

.topbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.item{display:flex;gap:12px}
.thumb{width:110px;height:110px;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.10);flex:0 0 auto}
.thumb img{width:100%;height:100%;object-fit:cover}

.gridEditor{display:grid;grid-template-columns:420px 1fr;gap:14px;align-items:start}

/* Tools column: internal scroll + sticky */
.tools{
  position:sticky; top:14px;
  max-height:calc(100vh - 28px);
  overflow:auto;
}
.tools::-webkit-scrollbar{width:10px}
.tools::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:10px}

.canvasFrame{
  border-radius:14px;border:1px solid rgba(255,255,255,.10);
  background:#0a0f19;height:75vh;overflow:hidden
}
#view{display:block;width:100%;height:100%;background:#000}

/* Accordion */
.acc{border-top:1px solid rgba(255,255,255,.08);padding-top:10px;margin-top:10px}
.accHead{
  display:flex;align-items:center;gap:10px;
  padding:10px;border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  cursor:pointer; user-select:none;
}
.accHead:hover{background:rgba(255,255,255,.06)}
.accIcon{
  width:22px;height:22px;border-radius:8px;
  background:rgba(27,76,255,.18);
  border:1px solid rgba(27,76,255,.35);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#cfe0ff
}
.accTitle{font-weight:800}
.accBody{display:none;padding:10px 4px 2px 4px}
.acc.open .accBody{display:block}
.acc.open .accIcon::before{content:"−"}
.acc:not(.open) .accIcon::before{content:"+"}

.chk{display:flex;align-items:center;gap:8px;font-size:13px;color:#cbd6ea}

.layersBox{background:#0f1420;border:1px solid rgba(255,255,255,.10);border-radius:12px;padding:8px;max-height:220px;overflow:auto}
.layerRow{display:flex;align-items:center;gap:10px;padding:8px;border-radius:10px;cursor:pointer}
.layerRow:hover{background:rgba(255,255,255,.06)}
.layerRow.active{background:rgba(27,76,255,.18);border:1px solid rgba(27,76,255,.35)}
.layerRow .dot{width:8px;height:8px;border-radius:50%;background:#9aa7bd}
.layerRow.active .dot{background:#1b4cff}
.layerRow .name{font-size:13px;color:#e9eef7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

@media (max-width:980px){
  .gridEditor{grid-template-columns:1fr}
  .tools{position:relative;max-height:none;overflow:visible}
  .canvasFrame{height:62vh}
}