:root {
  color-scheme: dark;
  --bg: #0f1115;
  --panel: #171b23;
  --panel-2: #1f2530;
  --border: #2c3444;
  --text: #e6eaf2;
  --muted: #98a2b3;
  --accent: #73b7ff;
  --accent-2: #ffd166;
  --danger: #ef476f;
  --good: #63d6a0;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font: 14px/1.4 system-ui, -apple-system, Segoe UI, sans-serif; }
body { overflow: auto; }
header { height: 64px; padding: 10px 16px; border-bottom: 1px solid var(--border); background: #141820; }
h1 { margin: 0; font-size: 20px; line-height: 1.2; }
.subtitle { color: var(--muted); font-weight: 600; }
main { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 0; align-items: start; }
.viewport { min-width: 0; display: block; padding: 10px; }
.canvas-wrap { position: relative; min-height: 0; border: 1px solid var(--border); border-radius: 8px; background: #0d1016; overflow: hidden; }
canvas { display: block; width: 100%; height: 100%; }
.scene-wrap { height: 560px; min-height: 320px; }
.viewport .canvas-wrap + .canvas-wrap { height: 360px; margin-top: 10px; }
.legend { position: absolute; top: 10px; right: 10px; display: flex; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 12px; background: rgba(13,16,22,0.72); border: 1px solid rgba(44,52,68,0.7); border-radius: 6px; padding: 6px 8px; }
.legend span { display: inline-flex; align-items: center; gap: 5px; }
.legend i { width: 10px; height: 10px; border-radius: 999px; display: inline-block; }
.legend .voltra { background: var(--good); }
.legend .attach { background: var(--danger); }
.legend .output { background: var(--accent-2); }
.legend .moment { background: var(--accent); }
.stats { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.stats div { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 9px 10px; }
.stats label { display: block; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; font-size: 11px; font-weight: 800; }
.stats span { color: var(--accent-2); font-size: 18px; font-weight: 800; }
.controls { border-left: 1px solid var(--border); padding: 12px; background: #141820; }
.group { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px; margin-bottom: 12px; }
.group h3 { margin: 0 0 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; font-size: 12px; }
label { display: block; margin: 8px 0; color: var(--text); font-weight: 650; }
label span { float: right; color: var(--accent-2); }
input[type="range"] { width: 100%; accent-color: var(--accent-2); }
input[type="text"], select, textarea { width: 100%; border: 1px solid var(--border); border-radius: 5px; background: #111620; color: var(--text); padding: 7px; font: inherit; }
textarea { resize: vertical; min-height: 68px; font: 11px/1.35 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.checkbox { display: flex; align-items: center; gap: 7px; font-weight: 600; color: var(--muted); }
.checkbox input { margin: 0; }
.button-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
button { border: 1px solid var(--border); border-radius: 6px; background: var(--panel-2); color: var(--text); padding: 8px; font: inherit; font-weight: 700; cursor: pointer; }
button:hover { border-color: var(--accent); color: var(--accent); }
.status { min-height: 18px; color: var(--good); font-size: 12px; margin-top: 6px; }
.status.error { color: var(--danger); }
.warnings ul, .warnings li { margin: 0; padding: 0; }
.warnings ul { list-style: none; display: grid; gap: 6px; }
.warnings li { color: var(--danger); font-weight: 700; font-size: 12px; }
@media (max-width: 980px) {
  main { grid-template-columns: 1fr; }
  .scene-wrap { height: 520px; }
  .viewport .canvas-wrap + .canvas-wrap { height: 340px; }
  .controls { border-left: 0; border-top: 1px solid var(--border); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}