:root{
  --bg:#0e0f12; --fg:#e9e9ec; --mut:#9aa; --border:#2a2d34;
  --btn:#151720; --btn-hov:#3a3f4a;
  --panel:#10131a; --top:#0b0c10; --stage:#292c33;
  --accent:#6ae3ff;
}
*{ box-sizing:border-box; }

html,body{
  height:100%; margin:0; background:var(--bg); color:var(--fg);
  font:14px/1.35 system-ui, -apple-system, Segoe UI, Roboto, Arial;
}

#layout{
  display:grid;
  grid-template-columns:220px 1fr 220px;
  grid-template-rows:auto 1fr auto;
  height:100vh;
}

/* topbar */
#topbar{
  grid-column:1 / -1; display:flex; align-items:center; gap:8px;
  padding:8px; background:var(--top); border-bottom:1px solid var(--border);
}

/* ───────── Buttons ───────── */
button{
  background:var(--btn);
  color:var(--fg);
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:6px;
  cursor:pointer;
  transition:background .15s ease, border-color .15s ease, color .15s ease;
}
button:hover{
  background:var(--btn-hov);
  border-color:var(--btn-hov);
}
button.mini{ padding:4px 8px; font-size:13px; border-radius:6px; }
.grow{ flex:1; }

/* + buttons — green hover (text stays white) */
button.addItemBelow,
#addCategory,
#addListItem,
#btnAddCategory,
#btnAddItem{
  color:var(--fg);
}
button.addItemBelow:hover,
#addCategory:hover,
#addListItem:hover,
#btnAddCategory:hover,
#btnAddItem:hover{
  background:rgba(120,255,120,0.06);
  border-color:#3f5a3f;
}

/* - buttons — red hover (text turns light red on hover only) */
button.removeItem,
button.removeCatSoft{
  color:var(--fg);
}
button.removeItem:hover,
button.removeCatSoft:hover{
  color:#ffb0b0;
  background:rgba(255,120,120,0.06);
  border-color:#5a3f3f;
}

/* neutral defaults for everything else */
button.danger, button.warn{
  color:inherit;
  border-color:var(--border);
  box-shadow:none;
}

/* sides */
#left{ border-right:1px solid var(--border); min-height:0; overflow:auto; }
#right{ border-left:1px solid var(--border); min-height:0; overflow:auto; }
.panel,.sideCard{
  margin:10px; padding:10px; background:var(--panel);
  border:1px solid var(--border); border-radius:8px;
}
.panel h3,.sideCard h3{ margin:0 0 10px; font-size:14px; font-weight:600; }
.muted{ color:var(--mut); font-size:12px; }

.support-block {
  text-align: center;
  margin-top: 16px;
}

.support-block .row {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--fg);
}

/* center */
#stageWrap{ background:var(--stage); display:grid; place-items:start center; overflow:auto; }
#stageInner{ width:min(960px,100%); padding:16px; display:grid; gap:12px; position:relative; }

/* hide legacy nodes (but they still exist to keep other scripts happy) */
#img,#canvas,#overlay{ display:none; }

/* cards + form */
.card{
  border:1px solid var(--border); border-radius:10px;
  background:var(--panel); padding:10px; overflow:hidden; max-width:100%;
}
.card-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:8px; }
.actions{ display:flex; gap:6px; }

.form-row{ display:flex; flex-direction:column; gap:6px; margin-bottom:10px; }

/* two-column helper (the HTML also inlines a grid as a fallback) */
.form-row.two-col{ display:flex; flex-direction:row; flex-wrap:wrap; gap:16px; margin-bottom:10px; }
.form-row.two-col .col{ flex:1 1 50%; min-width:320px; display:flex; flex-direction:column; gap:6px; }

.form-row>label{ font-size:13px; font-weight:600; color:#d5d7de; margin-bottom:2px; }
.form-row input[type="text"]{
  background:#0f1117; color:var(--fg); border:1px solid var(--border);
  padding:9px 12px; border-radius:8px;
}
input::placeholder{ color:#6b6b6b; opacity:1; }
.hint{ font-size:11px; color:#9aa; }

.card-list{ display:grid; gap:10px; }
.category .item-row{ align-items:center; }

/* row actions under each item input */
.row-actions{ display:flex; gap:8px; justify-content:center; margin-top:8px; }

/* toolbar */
.toolbar{ display:flex; gap:8px; margin:10px 0; }

/* preview */
#jsonPreview{
  display:block; width:100%; max-width:100%; min-height:260px;
  background:linear-gradient(#0000 23px, #0004 24px) repeat-y, #111;
  background-size:100% 24px;
  border:1px solid var(--border); border-radius:8px;
  color:var(--fg); padding:12px 14px;
  font:13px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  resize:vertical; overflow:auto;
}

/* status */
#status1{
  grid-column:1 / -1; padding:6px 10px; color:#9aa;
  border-top:1px solid var(--border); background:var(--top);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}

/* footer */
footer{ padding:14px; text-align:center; color:#c6c8d0; }
.links{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.links a{ color:#c6c8d0bb; text-decoration:none } 
links a:hover{ color:#fff }

/* responsive: stack filename/version on narrow widths */
@media (max-width:780px){
  .form-row.two-col{ display:grid; grid-template-columns:1fr; }
  .form-row.two-col .col{ min-width:0; }
}