/* Finite category navigation and editorial intent pages. */
.cu-topic-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.cu-topic-groups ul,.cu-topic-related ul{list-style:none;margin:0;padding:0}
.cu-topic-groups li,.cu-topic-related li{border-top:1px solid var(--cu-line)}
.cu-topic-groups a{display:grid;grid-template-columns:76px minmax(0,1fr) 16px;align-items:center;gap:12px;padding:16px 0;text-decoration:none;line-height:1.4;font-size:15px}
.cu-topic-groups img{display:block;width:76px;height:64px;object-fit:contain;background:#f2f1ef;border-radius:4px}
.cu-topic-groups a:hover,.cu-topic-related a:hover{text-decoration:underline}
.cu-topic-image-note{font-size:12px;color:var(--cu-muted);margin:24px 0 0!important}
.cu-topic-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.07fr);gap:clamp(26px,4vw,58px);padding:8px 0 46px;align-items:center}
.cu-topic-main h1{max-width:23ch}.cu-topic-main .cu-lead{max-width:55ch;font-size:19px;font-weight:400;line-height:1.6}
.cu-topic-media{margin:0;min-width:0}.cu-media-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
.cu-media-grid>div{min-width:0}.cu-topic-media img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#f1f0ee;border:1px solid #e4e3df;border-radius:7px}
.cu-topic-media figcaption{font-size:12px;color:var(--cu-muted);line-height:1.55;margin-top:12px;max-width:68ch}
.cu-topic-media-multi .cu-media-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.cu-topic-media-multi a{display:block;text-decoration:none;font-size:14px;line-height:1.4}.cu-topic-media-multi a>span:last-child,.cu-media-label{display:block;margin-top:8px;font-size:13px}
.cu-topic-media-multi a:hover{text-decoration:underline}.cu-choice-image{display:block}
.cu-topic-jump{gap:10px 24px}.cu-topic-jump a{font-size:13px;max-width:30ch;line-height:1.35;padding:8px 0}
.cu-topic-blocks{display:block;padding-top:18px}.cu-topic-block{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(24px,5vw,70px);padding:42px 0;border-bottom:1px solid var(--cu-line);scroll-margin-top:90px}
.cu-topic-block h2{font-size:clamp(24px,2.5vw,30px);max-width:23ch;margin-bottom:0}.cu-topic-block p{color:var(--cu-muted);font-size:17px;line-height:1.7;margin:0;max-width:65ch}.cu-topic-block .cu-task-number{display:block}
.cu-explainer{margin:28px 0 12px;padding:clamp(20px,3.4vw,42px);background:#f1f5f5;border:1px solid #e0e7e8;border-radius:8px}
.cu-explainer-heading{max-width:75ch}.cu-explainer h2{font-size:clamp(25px,2.5vw,31px)}.cu-explainer-heading>p:not(.cu-eyebrow){color:var(--cu-muted);font-size:16px}
.cu-visual-nodes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;list-style:none;padding:12px 0 0;margin:0}
.cu-visual-nodes li{border-top:3px solid #bd886a;padding-top:15px;min-width:0}.cu-visual-step{font-size:12px;color:var(--cu-copper);display:block;margin-bottom:12px}.cu-visual-nodes h3{font-size:20px;margin-bottom:10px}.cu-visual-nodes p{font-size:15px;line-height:1.6;margin:0;color:var(--cu-muted)}
.cu-visual-note{font-size:13px;line-height:1.6;color:var(--cu-muted);border-top:1px solid #d5dfe1;padding-top:20px;margin:26px 0 0!important}
.cu-measurement-preview{display:block;background:#fff;border:1px solid #dce3e5;border-radius:5px;overflow:hidden}.cu-measurement-preview img{display:block;width:100%;height:auto;object-fit:contain}
.cu-topic-inputs{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);gap:40px;padding:48px 0!important}.cu-topic-inputs h2{font-size:28px;max-width:22ch}.cu-topic-inputs ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 26px;list-style:none;padding:0;margin:0}.cu-topic-inputs li{padding:12px 0 0;border-top:2px solid #cbd8dc;font-size:15px;color:var(--cu-muted)}
.cu-topic-tasks{background:#f6f7f3;padding:clamp(22px,3vw,38px)!important;margin-top:36px;border-radius:8px}
.cu-topic-tasks label{display:block;font-size:14px;margin-bottom:8px}.cu-topic-tasks select{font:inherit;padding:12px;width:100%;max-width:520px;border:1px solid #a7b6bb;background:#fff;color:#173342;border-radius:4px}
.cu-task-panels>section{margin:26px 0}.cu-task-panels p{max-width:80ch}.cu-main [hidden]{display:none!important}
.cu-topic-related a{display:block;padding:15px 0}.cu-context{border:1px solid #a7c4ce;background:#f2f6f7;padding:18px;margin-bottom:22px}
.cu-context button{background:#173342;color:white;border:0;border-radius:4px;padding:11px 15px;cursor:pointer}.cu-context p{margin-bottom:12px}
@media(max-width:1000px){.cu-topic-groups{grid-template-columns:1fr 1fr}.cu-topic-hero{grid-template-columns:1fr;gap:26px}.cu-topic-main h1{max-width:28ch}.cu-topic-media{width:100%;max-width:720px}.cu-topic-main .cu-lead{max-width:70ch}.cu-topic-inputs{grid-template-columns:1fr;gap:12px}}
@media(max-width:650px){.cu-topic-groups,.cu-topic-block,.cu-visual-nodes{grid-template-columns:1fr}.cu-topic-hero{padding-top:0}.cu-topic-main h1{font-size:30px}.cu-topic-main .cu-lead{font-size:18px}.cu-topic-main .cu-topline{flex-wrap:wrap}.cu-topic-block{gap:18px;padding:30px 0}.cu-topic-block h2{max-width:none}.cu-topic-block p{font-size:16px}.cu-explainer{padding:22px 18px}.cu-visual-nodes{gap:22px}.cu-topic-inputs ul{grid-template-columns:1fr}.cu-topic-main .cu-footer{flex-wrap:wrap}.cu-topic-jump{gap:0 16px}.cu-topic-jump a{font-size:12px}.cu-topic-media-multi .cu-media-grid{gap:12px 10px}}

.cu-replacement-media{margin:24px 0}.cu-replacement-media img{width:100%;height:auto}
.cu-topic-hero>div{min-width:0}.cu-topic-main :is(h1,h2,h3){overflow-wrap:anywhere;hyphens:auto}
@media(max-width:1000px){.cu-topic-hero{grid-template-columns:minmax(0,1fr)}}
.cu-result-rows{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.cu-result-rows article{border-top:2px solid #b58364;padding-top:20px}.cu-result-rows h3{font-size:21px}.cu-result-rows p{font-size:16px;line-height:1.7;color:var(--cu-muted);margin:0}
.cu-drawing-reader{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:30px;align-items:start;margin-top:28px}.cu-drawing-reader figure{margin:0;background:#f2f6f7;padding:14px;border-radius:7px}.cu-drawing-reader img{display:block;width:100%;height:auto;background:#fff}.cu-drawing-reader figcaption{font-size:12px;line-height:1.6;margin-top:12px;color:var(--cu-muted)}.cu-drawing-keys details{border-top:1px solid var(--cu-line);padding:15px 0}.cu-drawing-keys summary{cursor:pointer;font-weight:600;line-height:1.5}.cu-drawing-symbols{display:block;font-size:14px;letter-spacing:.04em;color:var(--cu-copper);margin-bottom:5px}.cu-drawing-keys p{font-size:15px;line-height:1.7;color:var(--cu-muted);margin:15px 0 0}.cu-drawing-checks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;list-style:none;padding:0;margin:30px 0 0}.cu-drawing-checks li{border-left:2px solid #c8d8dc;padding-left:18px}.cu-drawing-checks strong{display:block;margin-bottom:9px}.cu-drawing-checks span{display:block;font-size:15px;color:var(--cu-muted);line-height:1.6}.cu-source-notes{border-top:1px solid var(--cu-line);padding-top:18px;margin-top:20px}.cu-source-notes summary{cursor:pointer;font-size:15px;font-weight:550}.cu-source-notes p{font-size:14px;color:var(--cu-muted);margin:18px 0}.cu-source-notes a{display:block;font-size:14px;min-height:40px}.cu-context details{margin:14px 0}.cu-context summary{cursor:pointer;font-size:14px;font-weight:550}.cu-context ul{padding-left:20px;font-size:14px}.cu-context li{margin:9px 0}
@media(max-width:950px){.cu-drawing-reader{grid-template-columns:minmax(0,1fr)}.cu-drawing-keys{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.cu-drawing-reader figure{max-width:760px}}
@media(max-width:650px){.cu-result-rows,.cu-drawing-checks,.cu-drawing-keys{grid-template-columns:minmax(0,1fr)}.cu-drawing-checks{gap:20px}.cu-drawing-reader{gap:15px}.cu-drawing-reader figure{padding:8px}.cu-drawing-keys{gap:0}.cu-result-rows{gap:26px}}

/* Existing archive drawings stay uncropped and readable at their own aspect ratio. */
.cu-library-drawings>p{max-width:82ch}.cu-library-drawings figure{margin:20px 0}.cu-library-drawings img{display:block;width:100%;height:auto;background:#fff;border:1px solid #dedfdf;border-radius:8px}.cu-library-drawings figcaption{font-size:13px;line-height:1.6;color:var(--cu-muted);margin:12px 0}.cu-library-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px;margin:26px 0}.cu-library-notes h3{font-size:18px}.cu-library-notes p{font-size:15px;color:var(--cu-muted);line-height:1.65}.cu-library-drawings summary{cursor:pointer;padding:18px 0;font-weight:600;line-height:1.5}.cu-library-drawings details{border-top:1px solid #ddd}.cu-library-drawings a:focus-visible{outline:3px solid #a65c31;outline-offset:4px}@media(max-width:700px){.cu-library-notes{grid-template-columns:1fr;gap:12px}}

/* The catalogue separates fluid, duty, equipment, assemblies and work. */
.cu-topic-group{min-width:0}.cu-topic-group-description{font-size:16px!important;line-height:1.6;color:var(--cu-muted);max-width:70ch;margin:12px 0 20px!important}.cu-topic-group-equipment{grid-column:1/-1}.cu-topic-group-equipment ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 28px}.cu-topic-group-equipment li{min-width:0}.cu-topic-image-note,.cu-topic-media figcaption,.cu-topic-jump a{font-size:14px}.cu-topic-groups a{font-size:16px}
@media(max-width:1000px){.cu-topic-group-equipment ul{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.cu-topic-group-equipment ul{grid-template-columns:1fr}.cu-topic-jump a{font-size:14px}}

/* Each archive view retains its own caption in multi-image topic heroes. */
.cu-media-grid>figure{margin:0;min-width:0}.cu-media-grid>figure .cu-media-label{font-size:14px;margin:0 0 6px;color:var(--cu-ink)}
@media(max-width:480px){.cu-media-grid>figure{grid-column:1/-1}}