/* Shared catalogue and quiz framing. Source photos remain intact.
   Bikes fill 86% of the frame width; wheel contact line at 89% of frame height. */
.bike-presentation{display:block;position:relative;aspect-ratio:4/3;overflow:hidden;background:#eeeeee;isolation:isolate}
.bike-presentation>img{display:block;position:absolute;max-width:none;width:var(--bike-width);height:auto;left:var(--bike-left);top:var(--bike-top);object-fit:contain;mix-blend-mode:darken;transform:none;transition:none}
.bike-presentation[data-bike-photo="r20"]{--bike-width:96.22378%;--bike-left:1.58741%;--bike-top:-16.04429%}
.bike-presentation[data-bike-photo="alloy20"]{--bike-width:103.86473%;--bike-left:-1.93237%;--bike-top:-21.37359%}
.bike-presentation[data-bike-photo="carbon20"]{--bike-width:99.42197%;--bike-left:2.42659%;--bike-top:-16.78497%}
.bike-presentation[data-bike-photo="d10"]{--bike-width:91.97861%;--bike-left:4.12567%;--bike-top:-37.62389%}
.bike-presentation[data-bike-photo="c5"]{--bike-width:91.97861%;--bike-left:4.05668%;--bike-top:-11.19537%}
.bike-presentation[data-bike-photo="r9"]{--bike-width:96.76512%;--bike-left:1.91983%;--bike-top:-17.44163%}
.bike-presentation[data-bike-photo="s9"]{--bike-width:106.31868%;--bike-left:-3.3956%;--bike-top:-51.49817%}
.bike-presentation[data-bike-photo="d9"]{--bike-width:106.75862%;--bike-left:-3.08276%;--bike-top:-44.01333%}
.bike-presentation[data-bike-photo="alloy16"]{--bike-width:105.26316%;--bike-left:-0.26316%;--bike-top:-23.0%}
.bike-presentation[data-bike-photo="carbon16"]{--bike-width:103.99033%;--bike-left:1.38452%;--bike-top:-19.84321%}