[data-theme-toggle],[data-gallery-back]{position:fixed;top:12px;z-index:99999;font:13px system-ui,sans-serif;border-radius:999px;padding:6px 12px;text-decoration:none;backdrop-filter:blur(6px);cursor:pointer;color:#cbd5e1;background:rgba(15,17,22,.75);border:1px solid #334155}
[data-theme-toggle]{right:12px}
[data-gallery-back]{left:12px}
html[data-theme=light] [data-theme-toggle],html[data-theme=light] [data-gallery-back]{color:#18181a;background:rgba(255,255,255,.85);border-color:#d4d4d8}
/* light figures: pure white page, crisper dark lines, clearer grey shading */
html[data-theme=light] .iso[data-theme=light]{
  --anatomy-page:#ffffff;--anatomy-card:#ffffff;--anatomy-paper:#ffffff;--anatomy-face:#ffffff;--anatomy-top:#ffffff;
  --anatomy-hi:#111113;--anatomy-mid:#6b6b70;--anatomy-lo:#a8a8ad;--anatomy-faint:#d0d0d3;
  --anatomy-shade-0:#c9c9c9;--anatomy-shade-1:#d6d6d6;--anatomy-shade-2:#e3e3e3;--anatomy-shade-3:#efefef;
  --anatomy-lit-shade:#e8e8e8;--anatomy-text:#3f3f44;--anatomy-strong:#0b0b0d;--anatomy-weight:.8px}

/* tour */
:root{--tour-hl:#ff5a1f}
[data-theme="dark"]{--tour-hl:#ffb020}
.tour-stage{transition:transform .9s cubic-bezier(.65,0,.35,1);will-change:transform}
.touring .iso-figure,.touring .tour-stage{overflow:visible}
.tour-hl{outline:3px solid var(--tour-hl);outline-offset:3px;filter:drop-shadow(0 0 6px var(--tour-hl)) drop-shadow(0 0 2px var(--tour-hl));transition:filter .4s}
svg .tour-hl,svg.tour-hl *{outline:none}
svg .tour-hl :is(path,rect,circle,ellipse,polygon,line,polyline){stroke:var(--tour-hl)!important}
[data-tour-toggle]{position:fixed;right:16px;bottom:64px;z-index:1000;font:600 13px/1 system-ui,sans-serif;padding:9px 14px;border-radius:999px;border:1px solid var(--tour-hl);background:var(--tour-hl);color:#fff;cursor:pointer}
[data-tour-badge]{position:fixed;left:50%;top:18px;transform:translate(-50%,-12px);opacity:0;z-index:1000;font:600 15px/1.2 system-ui,sans-serif;padding:8px 14px;border-radius:10px;background:var(--tour-hl);color:#fff;transition:opacity .3s,transform .3s;pointer-events:none}
[data-tour-badge].on{opacity:1;transform:translate(-50%,0)}