/* Opaque paper planes make CG-to-CG a continuous dissolve, not a fade to white. */
#study .image-plane{aspect-ratio:1600/1014}
#study .series-scene{position:absolute;inset:0;isolation:isolate;background:var(--av-paper);opacity:var(--scene-opacity,1)}
#study .series-scene + .series-scene{--scene-opacity:0;--cg:0;--ink:1}
#study .series-scene .render-layer{inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
/* Normalize each PDF sketch to the CG's content rectangle, not to the PDF page.
   Only uniform scaling and translation; never stretch the architectural drawing. */
#study .series-scene .sketch-layer{inset:auto;left:var(--sketch-left);top:var(--sketch-top);width:var(--sketch-width);height:auto}
#study .series-scene[data-scene="daegu"]{--sketch-left:-2.3915%;--sketch-top:-12.9626%;--sketch-width:106.2888%}
#study .series-scene[data-scene="series-27"]{--sketch-left:-9.3752%;--sketch-top:-25.5259%;--sketch-width:124.4390%}
#study .series-scene[data-scene="series-28"]{--sketch-left:-8.0050%;--sketch-top:-31.2325%;--sketch-width:124.2647%}
#study .series-scene[data-scene="series-29"]{--sketch-left:-8.4238%;--sketch-top:-17.1875%;--sketch-width:115.5273%}
#study .series-scene[data-scene="series-30"]{--sketch-left:-9.7061%;--sketch-top:-28.7550%;--sketch-width:124.6661%}
/* Page 4 is larger than the sketch in page 1's reference: preserve that placement first. */
#study .series-scene[data-scene="series-31"]{--sketch-left:1.0622%;--sketch-top:-17.9229%;--sketch-width:102.5465%}
#study .series-scene[data-scene="series-32"]{--sketch-left:-6.3953%;--sketch-top:-22.2116%;--sketch-width:116.2791%}
#study .series-scene[data-scene="series-33"]{--sketch-left:-13.2653%;--sketch-top:-28.7491%;--sketch-width:129.8701%}
#study .series-scene[data-scene="series-34"]{--sketch-left:-13.8544%;--sketch-top:-24.4112%;--sketch-width:124.3339%}
#study .series-scene[hidden]{display:none}
#study .series-scene img{opacity:var(--cg,.45)}
#study .series-scene .sketch-layer{opacity:var(--ink,.71)}
/* Original handwritten PDF marks sit on the paper, not on the CG. */
#study .series-scene .signature-layer{inset:auto;right:2.5%;bottom:2.8%;width:clamp(54px,10%,90px);height:auto;object-fit:contain;mix-blend-mode:multiply;opacity:calc(var(--ink,.71) * .78);z-index:3;pointer-events:none}
#study .series-scene img[hidden]{display:none}
#series-position{font-variant-numeric:tabular-nums}