:root {
  --bg: #020617; --panel: #0f172a; --panel2: #111c33; --line: #1e293b; --text: #e2e8f0; --muted: #94a3b8;
  --accent: #818cf8; --accent-ink: #0b1020; --good: #22c55e; --bad: #f43f5e; --radius: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
button { font: inherit; color: inherit; cursor: pointer; background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; }
button:hover { border-color: var(--accent); }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
a { color: var(--accent); }
.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }

.top { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; z-index: 5; }
.brand { color: var(--text); text-decoration: none; font-size: 1.15rem; }
.brand span { color: var(--muted); margin-left: 6px; font-size: .95rem; }
.tabs { display: flex; gap: 6px; flex: 1; }
.tabs button.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.adv-switch { font-size: .9rem; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.adv-switch small { color: var(--muted); }

.app { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); gap: 16px; padding: 16px; max-width: 1500px; margin: 0 auto; }
.stage { min-width: 0; }
.viewwrap { position: relative; height: min(70vh, 640px); min-height: 380px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #0b1220; }
#c { width: 100%; height: 100%; display: block; touch-action: none; }
#labels { position: absolute; inset: 0; pointer-events: none; }
.lbl { position: absolute; transform: translate(8px, -50%); font-size: .78rem; padding: 2px 8px; border-radius: 999px; white-space: nowrap; background: rgba(2, 6, 23, .82); border: 1px solid; }
.lbl-pp { color: #fb7185; border-color: #f43f5e; }
.lbl-pk { color: #22d3ee; border-color: #06b6d4; transform: translate(10px, 70%); }
.lbl-force { color: #e879f9; border-color: #d946ef; transform: translate(10px, -130%); }
.lbl-weight { color: #cbd5e1; border-color: #64748b; transform: translate(-50%, 0); }
.lbl-load { color: #f1f5f9; border-color: #94a3b8; transform: translate(-50%, -140%); }
.joints { display: flex; gap: 4px; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 3px; }
.joints a { padding: 6px 12px; border-radius: 9px; color: var(--muted); text-decoration: none; }
.joints a.on { background: var(--panel2); color: var(--text); font-weight: 600; }
.lbl-load2 { color: #f1f5f9; border-color: #94a3b8; transform: translate(-50%, 110%); }
.lbl-lever { color: #fde047; border-color: #facc15; transform: translate(-115%, -50%); }
.loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); background: #0b1220; }
.viewbtns { position: absolute; right: 10px; top: 10px; display: flex; gap: 6px; }
.viewbtns button { padding: 5px 10px; font-size: .85rem; background: rgba(15, 23, 42, .85); }
.caption { position: absolute; left: 10px; right: 10px; bottom: 10px; background: rgba(2, 6, 23, .9); border: 1px solid var(--accent); border-radius: 12px; padding: 10px 14px; font-size: 1.02rem; }
.caption p { margin: 2px 0 0; }
.stepn { font-size: .75rem; color: var(--accent); text-transform: uppercase; letter-spacing: .06em; }
.playbar { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.prog { flex: 1; height: 8px; background: var(--line); border-radius: 99px; overflow: hidden; }
#progress { height: 100%; width: 0; background: var(--accent); }
.controls { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 12px; }
.angle { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; }
.angle label { display: block; margin-bottom: 4px; }
.angle input { width: 100%; accent-color: var(--accent); height: 28px; }
.layers { border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 14px 10px; display: flex; flex-wrap: wrap; gap: 6px 16px; background: var(--panel); margin: 0; }
.layers legend { padding: 0 6px; color: var(--muted); font-size: .85rem; }
.layers label { display: flex; align-items: center; gap: 6px; }

.panel { min-width: 0; }
.panel h2 { font-size: 1.05rem; margin: 4px 0 8px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 12px; }
.card h3 { margin: 0 0 6px; font-size: 1.1rem; }
.card p { margin: 6px 0; }
.hint, .tiny { color: var(--muted); font-size: .88rem; }
.gloss { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 14px; margin-bottom: 12px; }
.gloss summary { cursor: pointer; font-weight: 600; }
.gloss dl { margin: 8px 0 2px; }
.gloss dt { font-weight: 600; margin-top: 6px; }
.gloss dd { margin: 0; color: var(--muted); font-size: .92rem; }
.scenes { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 8px; margin-bottom: 14px; }
.scene { display: flex; gap: 10px; align-items: center; text-align: left; padding: 10px; }
.scene .em { font-size: 1.5rem; }
.scene b { display: block; font-size: .95rem; }
.scene small { color: var(--muted); font-size: .8rem; }
.scene.on { border-color: var(--accent); background: #17204a; }
.structures .grp { margin-bottom: 10px; }
.structures h4 { margin: 8px 0 6px; font-size: .95rem; }
.structures h4 small { display: block; font-weight: 400; color: var(--muted); }
.item { display: flex; gap: 10px; align-items: center; width: 100%; text-align: left; margin-bottom: 6px; }
.item i { width: 10px; height: 26px; border-radius: 99px; flex: none; }
.item.on { border-color: var(--accent); background: #17204a; }
.item em { display: none; font-style: italic; color: var(--muted); font-size: .8rem; }
.fach { display: none; }
body.adv .fach, body.adv .item em { display: block; }
.card .fach { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--line); color: var(--muted); font-size: .88rem; }
.opt-line { display: flex; gap: 8px; align-items: center; margin: 0 0 10px; }
.metrics .row { margin-bottom: 10px; }
.metrics label { display: block; margin-bottom: 4px; }
.bar { height: 10px; background: var(--line); border-radius: 99px; overflow: hidden; }
.bar > div { height: 100%; border-radius: 99px; }
.bar2 { display: flex; height: 22px; background: var(--line); border-radius: 8px; overflow: hidden; font-size: .72rem; }
.bar2 span { display: flex; align-items: center; justify-content: center; color: #fff; overflow: hidden; white-space: nowrap; }

.seg { display: flex; gap: 6px; margin-bottom: 10px; } .seg button.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.qn { color: var(--muted); font-size: .85rem; }
.q { margin: 4px 0 12px; font-size: 1.15rem; }
.opts { display: grid; gap: 8px; }
.opt { text-align: left; padding: 10px 12px; }
.opt.good { border-color: var(--good); background: #07281a; }
.opt.bad { border-color: var(--bad); background: #2f0b17; }
.fb { margin-top: 12px; padding: 10px 12px; border-radius: 10px; border: 1px solid; }
.fb.ok { border-color: var(--good); } .fb.no { border-color: var(--bad); }
.qrow { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.src { margin-top: 8px; } .src summary { cursor: pointer; color: var(--text); } .src p { max-width: 70ch; }
.foot p { margin: 0 0 6px; max-width: 75ch; }
.foot { max-width: 1500px; margin: 0 auto; padding: 8px 16px 24px; color: var(--muted); font-size: .85rem; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; padding: 10px; }
  .viewwrap { height: 58vh; min-height: 320px; }
  .top { padding: 8px 12px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }