/* Original photographs remain untouched. Geometric registration and a common crop align the comparison. */
.coating-showcase figure,.applicator-photo{margin:0}
.coating-heading{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;margin-bottom:28px}
.coating-heading h2,.coating-heading h3{font-size:clamp(28px,3.2vw,46px);line-height:1.12;letter-spacing:-.035em;font-weight:500;margin:0;grid-column:1/-1}
.coating-heading p{margin:0;max-width:490px;font-size:16px;line-height:1.65}
.coating-showcase .coating-comparison{max-width:1040px;margin-inline:auto;scroll-margin-top:110px}
.comparison-labels{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:12px;font-size:14px;line-height:1.5}
.comparison-labels span:last-child{text-align:right}
.comparison-frame{--position:50%;position:relative;isolation:isolate;aspect-ratio:1008/565;overflow:hidden;cursor:ew-resize;touch-action:pan-y;user-select:none;-webkit-user-select:none;background:#101820}
/* Shared viewport in normal-photo coordinates: x=8..1016, y=45..610.
   Percentages scale registration consistently at every desktop and phone width. */
.comparison-frame img{position:absolute;left:-.7936507937%;top:-7.9646017699%;display:block;width:101.5873015873%;height:auto;max-width:none;pointer-events:none}
.comparison-illuminated{position:absolute;inset:0;clip-path:inset(0 0 0 var(--position));z-index:1}
/* Affine fit from corresponding physical features, with translation expressed
   relative to the original 1024 x 768 image. Clip the parent, not the shifted image. */
.comparison-illuminated img{transform-origin:0 0;transform:translate(-.2713563229%,-5.847681184%) matrix(1.0072835092,.0017683182,-.0090302658,1.0019426975,0,0)}
.comparison-divider{position:absolute;top:0;bottom:0;left:var(--position);width:2px;transform:translateX(-50%);background:#fff;box-shadow:0 0 0 1px rgba(16,24,32,.35);z-index:2;pointer-events:none}
.comparison-divider span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:48px;height:48px;border:2px solid #fff;border-radius:50%;background:#102e43;color:#fff;box-shadow:0 2px 12px rgba(0,0,0,.35);font:26px/1 Arial,sans-serif}
.comparison-range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;pointer-events:none}
.comparison-frame:focus-within{outline:3px solid currentColor;outline-offset:5px}
.comparison-frame:focus-within .comparison-divider span{outline:3px solid #102e43;outline-offset:3px}
.coating-comparison figcaption{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px 30px;padding-top:16px;font-size:14px;line-height:1.6}
.coating-comparison figcaption p{margin:0;max-width:490px}
.comparison-originals{display:flex;flex-wrap:wrap;gap:10px 24px}
.comparison-originals a{font-size:13px;text-decoration:underline;text-underline-offset:4px;white-space:nowrap}
.comparison-originals a:focus-visible{outline:2px solid currentColor;outline-offset:5px}
.applicator-photo{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:20px;min-width:0}
.applicator-photo img{display:block;width:auto;height:auto;max-width:100%;max-height:430px;object-fit:contain}
.applicator-photo figcaption{font-size:14px;line-height:1.5;text-align:center}
.commercial-media>.kicker{margin-bottom:25px}
/* Current design: photographs replace the abstract treatment diagram. */
.technology{display:block}
.technology-copy{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:70px}
.technology-copy>.section-number{grid-column:1/-1}
.technology-copy>h2{grid-column:1;grid-row:2/4}
.technology-copy>p:not(.section-number){grid-column:2;margin-top:0}
.technology-copy>.patent-note{grid-column:2;margin-top:24px}
.technology .coating-showcase{margin-top:70px;padding-top:40px;border-top:1px solid rgba(255,255,255,.22)}
.technology .coating-heading h3{font-family:"Newsreader",serif}
.technology .coating-heading p,.technology .coating-comparison{color:#c7d3da}
.relationship>.applicator-photo{padding:38px 25px;color:#314958}
/* Alternative A: light, editorial photo spread. */
.photography{padding-top:55px;padding-bottom:70px}
.research .photography{border-bottom:1px solid var(--line)}
.research .coating-heading p,.research .coating-comparison{color:var(--muted)}
.research .coating-heading{grid-template-columns:1.65fr .65fr;gap:40px}
/* Alternative B: photographs set into the dark engineering palette. */
.engineering .photography{padding-top:12px;padding-bottom:65px}
.engineering .coating-showcase{border-top:1px solid var(--line);padding-top:38px}
.engineering .coating-heading p,.engineering .coating-comparison{color:var(--muted)}
.engineering .coating-heading h2{font-weight:600}
.engineering .commercial h2+p{margin-top:24px}
@media(max-width:900px){
 .technology-copy{display:block}
 .technology-copy>p:not(.section-number){margin-top:25px}
 .technology .coating-showcase{margin-top:45px}
 .research .coating-heading{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:700px){
 .coating-heading,.research .coating-heading{grid-template-columns:1fr;gap:22px}
 .photography{padding-top:28px;padding-bottom:50px}
 .engineering .photography{padding-bottom:46px}
 .applicator-photo img{max-height:360px}
 .relationship>.applicator-photo{padding:35px 0}
}

/* Annotation shares the illuminated layer's clipping, staying fixed to the surface. */
.fluorescence-callout{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.fluorescence-label{position:absolute;right:3%;top:12%;padding:5px 9px;background:#122e42;color:#ffb45c;border-left:2px solid #ff9d36;font:14px/1.4 Arial,Helvetica,sans-serif;white-space:nowrap;pointer-events:none}
@media(max-width:420px){.fluorescence-label{font-size:12px;padding:4px 6px;right:2%;top:9%}}