/* ============================================================
   MOLDR · gesture-CAD — dark instrument theme
   Full-bleed 3D stage · floating translucent HUD · vermilion accent
   ============================================================ */
:root{
  --accent:#e2502a; --accent-2:#ff6a3d; --accent-soft:rgba(226,80,42,.16); --accent-ink:#ffb59e;
  --text:#e8ecef; --text-2:#a6aeb4; --text-3:#6c747a;
  --panel:rgba(18,21,24,.74); --panel-2:rgba(26,30,34,.82); --raised:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16);
  --ok:#46b07f; --warn:#d99a3a; --bad:#e2502a; --idle:#5d666c;
  --r:9px; --r2:6px; --r3:4px;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --sans:"IBM Plex Sans",system-ui,-apple-system,Segoe UI,sans-serif;
  --blur:saturate(120%) blur(13px);
  --sh:0 8px 30px rgba(0,0,0,.42),0 1px 0 rgba(255,255,255,.05) inset;
  --z-dock:20; --z-hud:30; --z-bar:40; --z-toast:60;
}

/* ============================ LIGHT THEME ============================ */
/* Opt-in via html[data-theme=light]. Remaps the tokens + the few hardcoded dark
   surfaces so every label stays readable. The vermilion accent is unchanged. */
:root[data-theme=light]{
  --text:#1b1f23; --text-2:#4b535b; --text-3:#7b838b;
  --panel:rgba(255,255,255,.84); --panel-2:rgba(252,253,254,.94); --raised:rgba(0,0,0,.04);
  --line:rgba(0,0,0,.12); --line-2:rgba(0,0,0,.2);
  --accent-ink:#b23c1c; --idle:#aab0b6;
  --sh:0 8px 28px rgba(0,0,0,.13),0 1px 0 rgba(255,255,255,.8) inset;
}
[data-theme=light] body{background:#eef0f2}
[data-theme=light] #stage{background:radial-gradient(120% 100% at 50% -8%,#ffffff 0%,#eef1f4 45%,#e2e7ea 100%)}
[data-theme=light] .vignette{box-shadow:inset 0 0 240px 40px rgba(0,0,0,.10)}
[data-theme=light] .bar{background:linear-gradient(180deg,rgba(244,246,248,.92),rgba(244,246,248,.34) 70%,transparent)}
[data-theme=light] .toast{background:#ffffff;color:var(--text);box-shadow:var(--sh)}
[data-theme=light] .cam-state{background:repeating-linear-gradient(45deg,#e7ebee,#e7ebee 9px,#dee3e7 9px,#dee3e7 18px)}
[data-theme=light] .cam-tag,[data-theme=light] .cam-q{color:#eef1f3}
[data-theme=light] .btn:hover,[data-theme=light] .pill:hover,[data-theme=light] .pal:hover,[data-theme=light] .card__btn:hover{background:rgba(0,0,0,.05)}
[data-theme=light] .row:hover{background:rgba(0,0,0,.04)}
[data-theme=light] .legend__k{background:rgba(0,0,0,.05)}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:var(--sans);color:var(--text);background:#0a0c0e;overflow:hidden;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
button{font-family:inherit;color:inherit;cursor:pointer}
.mono,[class*=mono]{font-family:var(--mono);font-variant-numeric:tabular-nums}

#app{position:fixed;inset:0}
#stage{position:absolute;inset:0;z-index:0;
  background:radial-gradient(120% 100% at 50% -10%,#1a2026 0%,#0e1215 45%,#090b0d 100%)}
#stage canvas{display:block}
.vignette{position:absolute;inset:0;z-index:1;pointer-events:none;
  box-shadow:inset 0 0 240px 40px rgba(0,0,0,.55)}

/* focus */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}

/* ============================ TOP BAR ============================ */
.bar{position:absolute;top:0;left:0;right:0;z-index:var(--z-bar);height:54px;
  display:flex;align-items:center;gap:18px;padding:0 16px;
  background:linear-gradient(180deg,rgba(10,12,14,.86),rgba(10,12,14,.30) 70%,transparent);
  -webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur)}
.brand{display:flex;align-items:baseline;gap:8px}
.brand__mark{color:var(--accent);font-size:19px;line-height:1;transform:translateY(1px)}
.brand__name{font-weight:700;letter-spacing:.18em;font-size:15px}
.brand__tag{font-family:var(--mono);font-size:10px;color:var(--text-3);letter-spacing:.05em}
.bar__status{display:flex;gap:12px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:10.5px;
  letter-spacing:.05em;color:var(--text-2)}
.chip--n b{color:var(--text);font-weight:600;margin-right:3px}
.bar__io{display:flex;gap:8px;margin-left:auto}
.bar__actions{display:flex;gap:7px}

.led{width:7px;height:7px;border-radius:2px;background:var(--idle);box-shadow:0 0 0 1px rgba(0,0,0,.4) inset;transition:.2s}
.led[data-state=on]{background:var(--ok);box-shadow:0 0 7px var(--ok)}
.led[data-state=warn]{background:var(--warn);box-shadow:0 0 7px var(--warn)}
.led[data-state=err]{background:var(--bad);box-shadow:0 0 7px var(--bad)}

.pill{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:var(--r2);
  border:1px solid var(--line-2);background:var(--raised);font-size:12.5px;font-weight:600;
  transition:background .16s,border-color .16s,transform .05s}
.pill svg{width:16px;height:16px;color:var(--text-2)}
.pill:hover{background:rgba(255,255,255,.08);border-color:var(--text-3)}
.pill:active{transform:translateY(1px)}
.pill[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent)}
.pill[aria-pressed=true] svg{color:var(--accent-ink)}
.pill .led{margin-left:2px}

.btn{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;padding:8px 11px;border-radius:var(--r2);
  border:1px solid var(--line-2);background:var(--raised);transition:.16s}
.btn:hover{background:rgba(255,255,255,.08);border-color:var(--text-3)}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--accent);color:#120a06;border-color:transparent;font-weight:600;
  box-shadow:0 2px 12px rgba(226,80,42,.4)}
.btn--primary:hover{background:var(--accent-2)}

/* ============================ DOCKS / CARDS ============================ */
.dock{position:absolute;z-index:var(--z-dock);display:flex;flex-direction:column;gap:11px;width:236px}
.dock--left{top:66px;left:14px}
.dock--right{top:66px;right:14px;width:300px;bottom:14px}
.card{background:var(--panel);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:12px}
.card--grow{flex:1;min-height:0;display:flex;flex-direction:column}
.card__t{margin:0 0 10px;font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--text-3);display:flex;align-items:center;justify-content:space-between;gap:8px}
.card__hint{font-weight:400;text-transform:none;letter-spacing:.01em;color:var(--text-3);font-size:9.5px;
  max-width:140px;text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card__btn{font-family:var(--mono);font-size:9px;letter-spacing:.06em;color:var(--text-3);
  border:1px solid var(--line);background:none;border-radius:3px;padding:2px 6px}
.card__btn:hover{color:var(--text);border-color:var(--text-3)}

/* palette */
.palette{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}
.pal{display:flex;flex-direction:column;align-items:center;gap:5px;padding:9px 4px;border-radius:var(--r2);
  border:1px solid var(--line);background:var(--raised);transition:.16s}
.pal:hover{background:rgba(255,255,255,.08);border-color:var(--accent);transform:translateY(-1px)}
.pal:active{transform:translateY(0)}
.pal svg{width:24px;height:24px;color:var(--text);stroke-width:1.4}
.pal span{font-family:var(--mono);font-size:8.5px;letter-spacing:.03em;color:var(--text-2)}

/* gesture legend */
.legend{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:3px;
  max-height:32vh;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.legend::-webkit-scrollbar{width:6px}
.legend::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:3px}
.legend::-webkit-scrollbar-track{background:transparent}
.legend li{display:flex;align-items:center;gap:9px;padding:5px 6px;border-radius:var(--r3);
  border:1px solid transparent;font-size:11px;color:var(--text-2);transition:.16s}
.legend li.is-active{background:var(--accent-soft);border-color:var(--accent);color:var(--text)}
.legend__k{font-family:var(--mono);font-size:9.5px;letter-spacing:.03em;color:var(--text);
  background:rgba(255,255,255,.07);border:1px solid var(--line);border-radius:3px;padding:2px 6px;
  min-width:66px;text-align:center;flex:0 0 auto}
.legend li.is-active .legend__k{background:var(--accent);color:#120a06;border-color:transparent}
.legend__hint{margin:9px 0 0;font-size:10px;line-height:1.5;color:var(--text-3)}
#gesture-now{color:var(--accent-ink);font-family:var(--mono);text-transform:lowercase;letter-spacing:0}

/* ============================ INSPECTOR ============================ */
.inspector{display:flex;flex-direction:column;gap:9px}
.empty{font-size:11px;line-height:1.6;color:var(--text-3);padding:6px 2px}
.empty b{color:var(--text-2);font-weight:600}
.prm{display:grid;grid-template-columns:1fr auto;gap:2px 8px;align-items:center}
.prm__l{font-size:11px;color:var(--text-2)}
.prm__v{font-family:var(--mono);font-size:11px;color:var(--text);text-align:right}
.prm__v u{text-decoration:none;color:var(--text-3);font-size:9px;margin-left:2px}
.prm__s{grid-column:1/-1}
/* big, forgiving sliders: 44px interactive height, 14px track, 28px thumb */
.slider{-webkit-appearance:none;appearance:none;width:100%;height:44px;background:transparent;
  outline:none;margin:2px 0;cursor:ew-resize;touch-action:none}
.slider::-webkit-slider-runnable-track{height:14px;border-radius:7px;
  background:linear-gradient(var(--line-2),var(--line-2)) , rgba(255,255,255,.04);background-blend-mode:normal;border:1px solid var(--line)}
.slider::-moz-range-track{height:14px;border-radius:7px;background:var(--line-2);border:1px solid var(--line)}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:28px;height:28px;margin-top:-8px;border-radius:50%;
  background:var(--accent);border:3px solid #14181b;cursor:ew-resize;box-shadow:0 0 0 1px var(--accent),0 2px 8px rgba(0,0,0,.45);transition:transform .1s}
.slider::-moz-range-thumb{width:28px;height:28px;border-radius:50%;background:var(--accent);border:3px solid #14181b;cursor:ew-resize;box-shadow:0 0 0 1px var(--accent)}
.slider:active::-webkit-slider-thumb{transform:scale(1.12)}
.slider:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 3px var(--accent-soft),0 0 0 1px var(--accent)}
.swatches{display:flex;gap:5px;flex-wrap:wrap;margin-top:2px}
.swatch{width:18px;height:18px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:transform .12s}
.swatch:hover{transform:scale(1.12)}
.swatch.is-on{border-color:var(--text)}
.xform{display:flex;justify-content:space-between;gap:8px;font-family:var(--mono);font-size:9.5px;color:var(--text-3);
  border-top:1px solid var(--line);padding-top:8px;margin-top:2px}
.xform b{color:var(--text-2);font-weight:500}
.iaction{display:flex;gap:6px}
.iaction .btn{flex:1;text-align:center}
.btn--danger:hover{border-color:var(--bad);color:#ff8a6e}

/* scene tree */
.tree{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:148px;overflow:auto}
.tree:empty::after{content:"empty — spawn a part";font-size:10.5px;color:var(--text-3);padding:4px 2px}
.row{display:flex;align-items:center;gap:4px;border-radius:var(--r3);
  border:1px solid transparent;transition:.14s}
.row:hover{background:rgba(255,255,255,.05)}
.row.is-sel{background:var(--accent-soft);border-color:var(--accent)}
.row__pick{display:flex;align-items:center;gap:8px;flex:1;min-width:0;padding:5px 7px;
  border:none;background:none;text-align:left;cursor:pointer;border-radius:var(--r3)}
.row__dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto;box-shadow:0 0 0 1px rgba(0,0,0,.4)}
.row__n{font-size:11px;color:var(--text);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row__id{font-family:var(--mono);font-size:9.5px;color:var(--text-3)}
.row__x{font-family:var(--mono);font-size:13px;color:var(--text-3);border:none;background:none;
  padding:5px 8px;line-height:1;cursor:pointer;border-radius:var(--r3);flex:0 0 auto}
.row__x:hover{color:var(--bad);background:rgba(226,80,42,.12)}

/* log */
.log{flex:1;min-height:0;overflow:auto;list-style:none;margin:0;padding:0;font-family:var(--mono);font-size:10px;line-height:1.5}
.log li{display:flex;gap:7px;padding:2.5px 1px;border-bottom:1px dotted var(--line)}
.log .t{color:var(--text-3);flex:0 0 auto}
.log .k{flex:0 0 auto;width:34px}
.log .m{color:var(--text-2);flex:1;word-break:break-word}
.log .k--voice{color:#6fb6d6}.log .k--gest{color:var(--accent-ink)}.log .k--ok{color:var(--ok)}.log .k--sys{color:var(--text-3)}

/* ============================ HUD ============================ */
.hud{position:absolute;z-index:var(--z-hud)}
.hud--cam{left:14px;bottom:14px;width:268px;background:var(--panel-2);
  -webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);border:1px solid var(--line);
  border-radius:var(--r);box-shadow:var(--sh);overflow:hidden;transition:opacity .18s}
/* draggable / collapsible camera HUD (PRD 4.2) */
.hud__bar{display:flex;align-items:center;gap:7px;padding:5px 9px;cursor:grab;touch-action:none;user-select:none;
  border-bottom:1px solid var(--line);font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.hud__bar:active{cursor:grabbing}
.hud__grip{letter-spacing:-1px;opacity:.65}
.hud__ttl{flex:1}
.hud__min{background:none;border:0;color:var(--text-3);font-size:15px;line-height:1;cursor:pointer;padding:0 5px;border-radius:4px}
.hud__min:hover{color:var(--text);background:rgba(255,255,255,.08)}
.hud--cam.is-min{width:170px}
.hud--cam.is-min .cam-wrap,.hud--cam.is-min .g-read{display:none}
.hud--cam.is-min .hud__bar{border-bottom:0}
.hud--cam.is-dragging{transition:none;opacity:.96}
.cam-wrap{position:relative;width:100%;aspect-ratio:16/9;background:#000}
#cam{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
#cam-overlay{position:absolute;inset:0;width:100%;height:100%;transform:scaleX(-1)}
.cam-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:5px;text-align:center;color:var(--text-2);font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  background:repeating-linear-gradient(45deg,#0c0f11,#0c0f11 9px,#0f1316 9px,#0f1316 18px)}
.cam-state small{font-size:9.5px;letter-spacing:.01em;color:var(--text-3);text-transform:none}
.cam-state[hidden]{display:none}
.cam-tag{position:absolute;left:8px;bottom:7px;font-family:var(--mono);font-size:8px;letter-spacing:.06em;
  color:var(--text-2);background:rgba(0,0,0,.5);padding:2px 5px;border-radius:3px}
.g-read{padding:9px 11px}
.g-read__row{display:flex;align-items:center;gap:9px}
.g-read__name{font-family:var(--mono);font-size:18px;font-weight:600;letter-spacing:.02em;text-transform:uppercase;color:var(--text);min-width:96px}
.g-read__name[data-idle="1"]{color:var(--text-3)}
.g-read__bar{flex:1;height:5px;border-radius:3px;background:var(--line-2);overflow:hidden;position:relative}
.g-read__bar i{position:absolute;inset:0;width:0;background:var(--accent);transition:width .12s}
#g-conf{font-family:var(--mono);font-size:10px;color:var(--text-3)}
.g-read__act{margin-top:5px;font-size:11px;color:var(--text-2)}
.g-read__act b{color:var(--accent-ink);font-family:var(--mono)}

.hud--voice{left:50%;bottom:16px;transform:translateX(-50%);display:flex;align-items:center;gap:12px;
  width:min(520px,46vw);padding:9px 14px;background:var(--panel-2);
  -webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);border:1px solid var(--line);
  border-radius:999px;box-shadow:var(--sh)}
.mic{display:flex;align-items:center;gap:8px;flex:0 0 auto;
  background:none;border:0;padding:0;margin:0;color:inherit;cursor:pointer;-webkit-appearance:none;
  border-radius:999px;transition:opacity .15s}
.mic:hover{opacity:.78}
.mic:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.mic__l{font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.mic__m{width:46px;height:6px;border-radius:3px;background:var(--line-2);overflow:hidden}
.mic__m i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ok),var(--warn))}
.transcript{flex:1;font-family:var(--mono);font-size:11.5px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.transcript em{color:var(--text-3);font-style:normal}
.transcript .interim{color:var(--text-3)}
.ai-state{flex:0 0 auto;font-family:var(--mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-ink);min-width:0;display:flex;align-items:center;gap:6px}
.ai-state::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--idle);transition:.2s}
#app[data-ai=busy] .ai-state::before{background:var(--accent);box-shadow:0 0 8px var(--accent);animation:aipulse 1s ease-in-out infinite}
#app[data-ai=error] .ai-state{color:var(--bad)}
#app[data-ai=error] .ai-state::before{background:var(--bad);box-shadow:0 0 8px var(--bad)}
@keyframes aipulse{0%,100%{opacity:.35}50%{opacity:1}}

/* mic → text-input morph (PRD 3.2) */
.hud--voice.is-typing .transcript{display:none}
.vtext{display:flex;align-items:center;gap:8px;flex:1;min-width:0;overflow:hidden}
.vtext[hidden]{display:none}
.vtext__in{width:0;opacity:0;min-width:0;background:transparent;border:0;border-bottom:1px solid var(--line-2);
  font-family:var(--mono);font-size:12px;color:var(--text);padding:4px 2px;outline:none;
  transition:width .3s ease-in-out,opacity .25s ease-in-out}
.vtext.is-open .vtext__in{width:min(240px,40vw);opacity:1}
.vtext__in:focus{border-bottom-color:var(--accent)}
.vtext__in::placeholder{color:var(--text-3)}
.vtext__send{flex:0 0 auto;transform:scale(0);transform-origin:center;
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:600;
  padding:5px 11px;border-radius:999px;background:var(--accent);color:#120a06;border:0;cursor:pointer;
  transition:transform .25s cubic-bezier(.34,1.56,.64,1),background .15s}
.vtext.is-open .vtext__send{transform:scale(1)}
.vtext__send:hover{background:var(--accent-2)}
/* fps readout health colour */
#stat-fps[data-lvl=good]{color:var(--ok)}
#stat-fps[data-lvl=ok]{color:var(--warn)}
#stat-fps[data-lvl=low]{color:var(--bad)}

/* ============================ TOAST ============================ */
.toast{position:absolute;left:50%;bottom:84px;transform:translateX(-50%);z-index:var(--z-toast);
  background:#14181b;color:var(--text);font-family:var(--mono);font-size:11.5px;padding:9px 14px;
  border-radius:var(--r2);box-shadow:var(--sh);border-left:3px solid var(--accent);max-width:440px}
.toast[hidden]{display:none}

/* ============================ TOOLBAR ICON BUTTONS ============================ */
.btn--icon{display:inline-flex;align-items:center;justify-content:center;padding:7px;min-width:32px;font-size:13px}
.btn--icon svg{width:16px;height:16px}

/* ============================ TRACKING QUALITY ============================ */
.cam-q{position:absolute;right:8px;top:7px;display:flex;align-items:center;gap:5px;
  font-family:var(--mono);font-size:8.5px;color:var(--text-2);background:rgba(0,0,0,.5);padding:2px 6px;border-radius:3px}
.cam-q__dot{width:7px;height:7px;border-radius:50%;background:var(--idle);transition:.2s}
.cam-q__dot[data-q=good]{background:var(--ok);box-shadow:0 0 6px var(--ok)}
.cam-q__dot[data-q=warn]{background:var(--warn);box-shadow:0 0 6px var(--warn)}
.cam-q__dot[data-q=bad]{background:var(--bad);box-shadow:0 0 6px var(--bad)}

/* ============================ GHOST-HAND OVERLAY ============================ */
.ghost{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;color:var(--accent-ink)}
.ghost[hidden]{display:none}
.ghost .thand{width:46%;height:46%;opacity:.45}

/* ============================ CONTEXT-AWARE CURSOR ============================ */
body{cursor:none}
.moldr-cursor{position:fixed;left:0;top:0;z-index:80;pointer-events:none;width:16px;height:16px;border-radius:50%;
  transition:width .12s ease,height .12s ease,background .12s ease,border-color .12s ease,opacity .12s ease;will-change:transform}
.moldr-cursor[hidden]{display:none}
.moldr-cursor.is-slick{background:rgba(255,255,255,.85);box-shadow:0 0 10px rgba(255,255,255,.35),0 2px 6px rgba(0,0,0,.4);border:0}
.moldr-cursor.is-slick.is-hot{width:22px;height:22px;background:rgba(255,255,255,.96)}
.moldr-cursor.is-slick.is-press{width:13px;height:13px;background:var(--accent-ink)}
.moldr-cursor.is-reticle{width:22px;height:22px;background:transparent;border:2px solid var(--accent);box-shadow:0 0 8px rgba(226,80,42,.5)}
.moldr-cursor.is-reticle::after{content:"";position:absolute;left:50%;top:50%;width:6px;height:6px;border-radius:50%;background:#fff;transform:translate(-50%,-50%)}
/* second-hand reticle (PRD 3.4) — distinct colour so two hands read as two points */
.moldr-cursor.is-second{width:18px;height:18px;border-color:var(--accent-ink);box-shadow:0 0 7px rgba(255,181,158,.5);opacity:.9}
.moldr-cursor.is-second::after{background:var(--accent-ink)}

/* ============================ MODALS ============================ */
.modal{position:fixed;inset:0;z-index:70;display:flex;align-items:center;justify-content:center}
.modal[hidden]{display:none}
.modal__scrim{position:absolute;inset:0;background:rgba(6,8,10,.62);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.modal__panel{position:relative;width:min(440px,92vw);max-height:88vh;overflow:auto;padding:16px;
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);
  -webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur)}
.modal__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.modal__head h2{margin:0;font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--text)}
.modal__x{font-size:18px;line-height:1;color:var(--text-3);border:none;background:none;padding:2px 8px;border-radius:4px;cursor:pointer}
.modal__x:hover{color:var(--text);background:rgba(255,255,255,.06)}

/* settings */
.set{display:flex;flex-direction:column;gap:14px}
.set__row--lead{display:grid;grid-template-columns:1fr auto;gap:2px 8px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.set__l{font-size:12px;color:var(--text)}
.set__l small{display:block;font-size:9.5px;color:var(--text-3);margin-top:2px}
.set__v{font-family:var(--mono);font-size:13px;color:var(--accent-ink);align-self:start}
.set__row--lead .slider{grid-column:1/-1}
.set__toggle{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--text-2);cursor:pointer}
.set__toggle input{width:16px;height:16px;accent-color:var(--accent)}
.set__btns{display:flex;flex-wrap:wrap;gap:7px}
.set__note{margin:4px 0 0;font-size:10px;line-height:1.5;color:var(--text-3)}

/* tutorial */
.modal--tut .modal__panel{width:min(460px,94vw)}
.tut{display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center}
.tut__stage{width:160px;height:150px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r);background:rgba(255,255,255,.03);color:var(--accent-ink)}
.tut__stage .thand{width:120px;height:120px}
.tut__desc{margin:0;font-size:12.5px;line-height:1.55;color:var(--text-2);max-width:38ch}
.tut__action{font-family:var(--mono);font-size:11px;color:var(--accent-ink)}
.tut__try{display:flex;align-items:center;gap:10px;width:100%;justify-content:center;margin-top:2px;flex-wrap:wrap}
.tut__trylabel{font-size:11px;color:var(--text-3)}
.tut__meter{flex:0 0 120px;height:6px;border-radius:3px;background:var(--line-2);overflow:hidden}
.tut__meter i{display:block;height:100%;width:0;background:var(--ok);transition:width .1s}
.tut__foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.tut__dont{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--text-3);cursor:pointer}
.tut__dont input{accent-color:var(--accent)}
.tut__nav{display:flex;gap:7px}
.tut__nav .btn[disabled]{opacity:.4;pointer-events:none}
.tut__dots{display:flex;gap:6px;justify-content:center;margin-top:12px}
.tut__dots i{width:6px;height:6px;border-radius:50%;background:var(--line-2)}
.tut__dots i.on{background:var(--accent)}

/* animated hand glyph */
.thand{color:var(--accent-ink)}
.thand.is-faint{opacity:.5}
.thand__g{transform-box:fill-box;transform-origin:50% 70%}
.m-drag .thand__g{animation:tdrag 1.8s ease-in-out infinite}
.m-pinch .thand__g{animation:tpinch 1.6s ease-in-out infinite}
.m-orbit .thand__g{animation:torbit 2.4s ease-in-out infinite}
.m-twist .thand__g{animation:ttwist 2s ease-in-out infinite}
.m-lock .thand__g{animation:tlock 1.6s ease-in-out infinite}
.m-cycle .thand__g{animation:tcycle 1.4s steps(2,jump-none) infinite}
.m-up .thand__g{animation:tup 1.4s ease-in-out infinite}
.thand__arrow{opacity:.8}
@keyframes tdrag{0%,100%{transform:translateX(-10px)}50%{transform:translateX(10px)}}
@keyframes tcycle{0%{transform:translateX(-9px)}100%{transform:translateX(9px)}}
@keyframes tpinch{0%,100%{transform:scale(1)}50%{transform:scale(.8)}}
@keyframes torbit{0%{transform:translateX(-8px) rotate(-8deg)}50%{transform:translateX(8px) rotate(8deg)}100%{transform:translateX(-8px) rotate(-8deg)}}
@keyframes ttwist{0%,100%{transform:rotate(-18deg)}50%{transform:rotate(18deg)}}
@keyframes tlock{0%,100%{transform:scale(1)}50%{transform:scale(.86) translateY(2px)}}
@keyframes tup{0%,100%{transform:translateY(6px)}50%{transform:translateY(-8px)}}

/* ============================ SKETCH VIEW ============================ */
.sketchpanel{position:absolute;top:66px;right:14px;bottom:14px;width:260px;z-index:50;
  display:flex;flex-direction:column;gap:11px;padding:14px;
  background:var(--panel-2);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);overflow:auto}
.sketchpanel[hidden]{display:none}
.sk__head{display:flex;align-items:center;justify-content:space-between}
.sk__head h2{margin:0;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.sk__op{display:flex;gap:6px}
.sk__opt{flex:1;display:flex;flex-direction:column;gap:2px;padding:8px;border-radius:var(--r2);cursor:pointer;
  border:1px solid var(--line);background:var(--raised);font-size:12px;font-weight:600;color:var(--text-2);transition:.14s}
.sk__opt small{font-family:var(--mono);font-size:8.5px;font-weight:400;color:var(--text-3)}
.sk__opt.is-on{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}
.sk__opt[aria-disabled=true]{opacity:.45;cursor:not-allowed}
/* Sketch onboarding popover (PRD §2) */
.skmenu{position:fixed;z-index:65;width:248px;padding:13px;display:flex;flex-direction:column;gap:9px;
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);
  -webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur)}
.skmenu[hidden]{display:none}
.skmenu__h{margin:0;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text)}
.skmenu__p{margin:0;font-size:11px;line-height:1.55;color:var(--text-2)}
.sk__hint{font-size:10px;line-height:1.5;color:var(--text-3)}
.sk__btns{display:flex;gap:7px;margin-top:auto}
.sk__btns .btn{flex:1;text-align:center}
#app[data-sketch=on] .dock--right{opacity:0;pointer-events:none}
#app[data-sketch=on] .dock--left{opacity:.25;pointer-events:none}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* small-screen gate — informative, not a hard wall: mouse + voice still work, and
   it is dismissible via "Continue anyway" (which sets html[data-gate=off]). */
#gate{display:none}
@media (max-width:1040px){
  #gate{position:fixed;inset:0;z-index:99;display:flex;flex-direction:column;gap:16px;
    align-items:center;justify-content:center;text-align:center;padding:40px;
    background:#0c0f11;color:var(--text-2);font-family:var(--mono);font-size:13px;line-height:1.6}
  #gate p{max-width:40ch;margin:0}
  html[data-gate=off] #gate{display:none}
}

/* ============================ REFERENCE PLANES ============================ */
.pl__master{margin-left:auto;display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:9px;letter-spacing:.04em;color:var(--text-3);text-transform:lowercase}
.pl__master input{accent-color:var(--accent)}
.pl__list{list-style:none;margin:0 0 8px;padding:0;display:flex;flex-direction:column;gap:5px}
.pl__row{display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:7px;
  padding:5px 6px;border:1px solid var(--line);border-radius:var(--r2);background:var(--raised)}
.pl__row.is-active{border-color:var(--accent);background:var(--accent-soft)}
.pl__led{width:9px;height:9px;border-radius:2px;background:var(--c);box-shadow:0 0 0 1px rgba(0,0,0,.4)}
.pl__row.is-active .pl__led{background:var(--accent)}
.pl__name{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--text-2);
  border:none;background:none;text-align:left;padding:0;cursor:pointer}
.pl__row.is-active .pl__name{color:var(--text)}
.pl__off{display:inline-flex;align-items:center;gap:4px;font-family:var(--mono);font-size:10px;color:var(--text-3)}
.pl__off b{min-width:26px;text-align:right;color:var(--text-2)}
.pl__step{width:18px;height:18px;line-height:1;border:1px solid var(--line);background:var(--raised);
  border-radius:3px;color:var(--text-2);font-size:12px;cursor:pointer}
.pl__step:hover{border-color:var(--accent);color:var(--text)}
.pl__eye{width:20px;height:20px;border:none;background:none;color:var(--text-3);font-size:12px;cursor:pointer}
.pl__eye[aria-pressed=true]{color:var(--accent-ink)}

/* ============================ AIR-DRAW ============================ */
.airdraw{position:fixed;inset:0;z-index:60;background:rgba(8,10,12,.55);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:adFade .16s ease}
@keyframes adFade{from{opacity:0}to{opacity:1}}
.airdraw__svg{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}
.airdraw__guide{fill:none;stroke:var(--text-3);stroke-width:1.5;stroke-dasharray:3 4;opacity:.8}
.airdraw__active{fill:none;stroke:var(--accent);stroke-width:2.5;opacity:0;pointer-events:none}   /* active-constraint segment, vermilion (PRD §3.5) */
.airdraw__glyph{fill:var(--accent);font-family:var(--mono);font-size:13px;font-weight:600;opacity:0;pointer-events:none}
.airdraw__shape{fill:var(--accent-soft);stroke:var(--accent);stroke-width:2;stroke-linejoin:round}
.airdraw__h{fill:#14181b;stroke:var(--accent);stroke-width:2}
.airdraw__card{position:absolute;top:66px;right:14px;width:260px;z-index:61;padding:14px;
  background:var(--panel-2);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);display:flex;flex-direction:column;gap:10px}
.airdraw__head{display:flex;align-items:center;justify-content:space-between}
.airdraw__head h2{margin:0;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.airdraw__hint{margin:0;font-size:10.5px;line-height:1.5;color:var(--text-3)}
.airdraw__read{margin:0;font-family:var(--mono);font-size:12px;color:var(--accent-ink);letter-spacing:.02em}
.airdraw__btns{display:flex;gap:7px;margin-top:auto}
.airdraw__btns .btn{flex:1;text-align:center}
.airdraw__modes{display:flex;gap:6px;margin-bottom:9px}
.airdraw__modes .btn{flex:1;text-align:center}
.airdraw__dims{display:flex;flex-direction:column;gap:6px;max-height:40vh;overflow:auto}
.airdraw__dim{display:flex;align-items:center;gap:6px;font-size:10.5px;color:var(--text-2)}
.airdraw__dim span{flex:1;font-family:var(--mono);font-size:9.5px;color:var(--text-3)}
.airdraw__num{width:64px;font-family:var(--mono);font-size:11px;color:var(--text);background:var(--raised);
  border:1px solid var(--line-2);border-radius:var(--r3);padding:4px 6px}
.airdraw__dim u{text-decoration:none;color:var(--text-3);font-size:9px}

/* ============================ VIEW CUBE ============================ */
.viewcube{position:absolute;left:296px;bottom:18px;width:104px;height:104px;
  z-index:var(--z-hud);pointer-events:auto;
  filter:drop-shadow(0 6px 16px rgba(0,0,0,.5));
  opacity:.92;transition:opacity .18s}
.viewcube:hover{opacity:1}
.viewcube canvas{display:block;width:104px;height:104px;border-radius:var(--r2)}
#app[data-sketch=on] .viewcube{opacity:0;pointer-events:none}