:root {
  --bg: #0d1418;
  --bg2: #131d23;
  --bg3: #1a272f;
  --line: #26363f;
  --text: #dbe6ea;
  --dim: #8299a3;
  --accent: #4fd1c5;
  --warn: #f5a623;
  --bad: #ef5b5b;
  --good: #5bd68a;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 14px/1.4 var(--sans); }
button, input, select, textarea { font: inherit; color: inherit; }
code { font-family: var(--mono); font-size: 12px; color: var(--accent); }
[hidden] { display: none !important; }

#app { display: grid; grid-template-columns: 1fr 380px; height: 100dvh; }
#stage { position: relative; overflow: hidden; min-height: 0; }
#viewport, #viewport canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
#panel { background: var(--bg2); border-left: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; }

/* labels */
#labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
#labels div {
  position: absolute; transform: translate(-50%, -50%); white-space: nowrap;
  font: 11px/1.2 var(--sans); padding: 2px 5px; border-radius: 4px;
  background: rgba(13, 20, 24, .72); color: var(--text); border: 1px solid rgba(255,255,255,.08);
}
#labels div.sel { border-color: var(--accent); color: #fff; }
#labels div.bad { border-color: var(--bad); }
#labels div.marker { background: none; border: none; font-weight: 600; font-size: 10px; transform: translate(8px, -50%); }

/* toolbar */
.toolbar { position: absolute; top: 10px; left: 10px; right: 10px; display: flex; flex-wrap: wrap; gap: 6px; pointer-events: none; }
.seg { display: inline-flex; background: rgba(19, 29, 35, .9); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; pointer-events: auto; backdrop-filter: blur(6px); }
.seg button { background: none; border: 0; padding: 7px 10px; cursor: pointer; color: var(--dim); min-width: 34px; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { color: var(--bg); background: var(--accent); }
.seg button:hover:not(.on) { color: var(--text); }
.seg button:disabled { opacity: .35; cursor: default; }

/* stats strip */
#stats {
  position: absolute; left: 10px; bottom: 10px; right: 10px; display: flex; flex-wrap: wrap; gap: 6px; pointer-events: none;
}
#stats .stat {
  background: rgba(19, 29, 35, .9); border: 1px solid var(--line); border-radius: 8px; padding: 5px 9px; backdrop-filter: blur(6px);
  pointer-events: auto;
}
#stats .k { color: var(--dim); font-size: 11px; display: block; }
#stats .v { font-family: var(--mono); font-size: 13px; }
#stats .good { color: var(--good); } #stats .warn { color: var(--warn); } #stats .bad { color: var(--bad); }

/* tabs */
.tabs { display: flex; border-bottom: 1px solid var(--line); flex: none; }
.tabs button { flex: 1; background: none; border: 0; padding: 12px 0; color: var(--dim); cursor: pointer; border-bottom: 2px solid transparent; }
.tabs button.on { color: var(--text); border-bottom-color: var(--accent); }
.tab { display: none; padding: 12px; overflow-y: auto; flex: 1; min-height: 0; }
.tab.on { display: block; }
h3 { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--dim); margin: 18px 0 8px; font-weight: 600; }
.hint { color: var(--dim); font-size: 12px; margin: 6px 0; }

.row { display: flex; gap: 6px; align-items: center; margin: 6px 0; }
.row.wrap { flex-wrap: wrap; }
.add-row { flex-wrap: wrap; }
.btn {
  background: var(--bg3); border: 1px solid var(--line); border-radius: 7px; padding: 7px 11px; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn.ghost { background: none; }
.btn.danger { color: var(--bad); }
.btn.small { padding: 4px 8px; font-size: 12px; }
.btn.on { border-color: var(--accent); color: var(--accent); }
.btn.file { position: relative; overflow: hidden; }
.btn.file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
input[type=text], input[type=number], select, textarea {
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; width: 100%; min-width: 0;
}
input[type=number] { font-family: var(--mono); font-size: 13px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { font-family: var(--mono); font-size: 12px; resize: vertical; }
input[type=color] { width: 38px; height: 32px; padding: 0 2px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); flex: none; }
.check { display: flex; align-items: center; gap: 6px; color: var(--dim); font-size: 13px; cursor: pointer; }

/* forms */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.field label, .grid label { display: block; font-size: 11px; color: var(--dim); margin-bottom: 2px; }
.field { margin: 8px 0; }

/* editor */
#editor:empty { display: none; }
#editor { background: var(--bg3); border: 1px solid var(--line); border-radius: 10px; padding: 10px; margin-bottom: 10px; }
#editor .head { display: flex; gap: 6px; align-items: center; }
#editor .head input[type=text] { font-weight: 600; }
#editor .issues { font-size: 12px; margin: 6px 0 0; }
#editor .issues .bad { color: var(--bad); } #editor .issues .warn { color: var(--warn); } #editor .issues .good { color: var(--good); }
.close { background: none; border: 0; color: var(--dim); font-size: 18px; cursor: pointer; padding: 2px 6px; }

/* part list */
#part-list, ul.plain { list-style: none; margin: 8px 0 0; padding: 0; }
#part-list li {
  display: grid; grid-template-columns: 14px 1fr auto; gap: 8px; align-items: center;
  padding: 8px; border-radius: 7px; cursor: pointer; border: 1px solid transparent;
}
#part-list li:hover { background: var(--bg3); }
#part-list li.sel { border-color: var(--accent); background: var(--bg3); }
#part-list li.hid { opacity: .45; }
#part-list .sw { width: 14px; height: 14px; border-radius: 3px; }
#part-list .sw.ko { background: repeating-linear-gradient(45deg, var(--bad) 0 3px, transparent 3px 6px) !important; border: 1px solid var(--bad); }
#part-list .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#part-list .meta { font-family: var(--mono); font-size: 11px; color: var(--dim); text-align: right; }
#part-list .flag { color: var(--bad); margin-left: 4px; }
#part-list .flag.warn { color: var(--warn); }
ul.plain li { display: flex; align-items: center; gap: 6px; padding: 6px 0; border-bottom: 1px solid var(--line); }
ul.plain li .nm { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
ul.plain li .t { color: var(--dim); font-size: 11px; }

#toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--bg3); border: 1px solid var(--accent);
  padding: 8px 14px; border-radius: 8px; z-index: 10; font-size: 13px; transition: opacity .3s; pointer-events: none;
}

/* phone */
@media (max-width: 860px) {
  #app { grid-template-columns: 1fr; grid-template-rows: 52svh 1fr; }
  #panel { border-left: 0; border-top: 1px solid var(--line); }
  .seg button { padding: 7px 8px; font-size: 13px; }
  .toolbar { top: 6px; left: 6px; right: 6px; gap: 4px; }
  #stats { left: 0; right: 0; bottom: 6px; gap: 4px; flex-wrap: nowrap; overflow-x: auto; padding: 0 6px; scrollbar-width: none; pointer-events: auto; }
  #stats .stat { flex: none; }
  #stats .stat { padding: 3px 7px; }
  #stats .k { font-size: 10px; }
  #stats .v { font-size: 12px; }
  input[type=number], input[type=text], select, textarea { font-size: 16px; } /* stops iOS zooming on focus */
}