/* v31: photo covers are scoped to the catalogue; lesson diagrams are untouched. */
#dly-technical-guides .ac-topic-card.ac-photo-card{padding:0;border:1px solid #d6e1e9;border-radius:15px;overflow:hidden;box-shadow:0 5px 18px #19365006;transition:transform .2s,box-shadow .2s,border-color .2s}
#dly-technical-guides .ac-photo-card .ac-cover{display:block;position:relative;aspect-ratio:8/5;overflow:hidden;background:#1c3549}
#dly-technical-guides .ac-card-photo{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
#dly-technical-guides .ac-cover:after{content:"";position:absolute;inset:55% 0 0;background:linear-gradient(transparent,#0e23374d);pointer-events:none}
#dly-technical-guides .ac-cover-label{position:absolute;bottom:12px;left:14px;z-index:1;padding:5px 9px;border-radius:4px;background:#132f48e8;color:#fff;font-size:10px;line-height:1.4;letter-spacing:.04em}
#dly-technical-guides .ac-card-body{display:flex;flex:1;flex-direction:column;padding:24px}
#dly-technical-guides .ac-photo-card h3{font-size:22px;line-height:1.32;margin:12px 0 14px;color:#163650}
#dly-technical-guides .ac-card-body>p{font-size:14px;line-height:1.75;margin:0 0 22px;color:#50697d}
#dly-technical-guides .ac-photo-card .ac-topic-code{font-size:10px;letter-spacing:.13em}
#dly-technical-guides .ac-photo-card .ac-topic-open{font-size:13px;min-height:28px;padding-top:16px}
#dly-technical-guides .ac-photo-card:hover{transform:translateY(-4px);border-color:#b79c4c;box-shadow:0 14px 32px #16365016}
#dly-technical-guides .ac-photo-card:hover .ac-card-photo{transform:scale(1.035)}
#dly-technical-guides .ac-photo-card:focus-visible{outline:3px solid #0876b8;outline-offset:4px}
#dly-technical-guides .ac-photo-credits{padding:18px 22px;border:1px solid #d2dfe8;border-radius:12px;background:#fff;font-size:12px;line-height:1.8;margin:30px 0}
#dly-technical-guides .ac-photo-credits summary{cursor:pointer;font-weight:700;font-size:13px}
#dly-technical-guides .ac-photo-credits a{overflow-wrap:anywhere}
#dly-technical-guides .ac-photo-credits ul{padding-left:20px}
@media(max-width:600px){#dly-technical-guides .ac-card-body{padding:21px}#dly-technical-guides .ac-photo-card h3{font-size:23px}#dly-technical-guides .ac-catalog-grid{gap:22px}}
@media(prefers-reduced-motion:reduce){#dly-technical-guides .ac-photo-card,#dly-technical-guides .ac-card-photo{transition:none}#dly-technical-guides .ac-photo-card:hover,#dly-technical-guides .ac-photo-card:hover .ac-card-photo{transform:none}}
@media print{#dly-technical-guides .ac-photo-card .ac-cover{height:110px;aspect-ratio:auto}#dly-technical-guides .ac-card-body{padding:14px}#dly-technical-guides .ac-photo-card h3{font-size:15pt}#dly-technical-guides .ac-photo-card{break-inside:avoid}}