/* Shared PHP product category MASTER: loaded through $pageStylesheet. */
.gv-page{--gv-blue:#286b91;--gv-dark:#153b53;--gv-muted:#586f7a;--gv-line:#dce7eb}
.gv-hero{padding:70px 0 58px;background:linear-gradient(120deg,#eef5f7,#f8faf9)}
.gv-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,640px);gap:clamp(32px,4vw,64px);align-items:center}
.gv-hero h1{max-width:980px;font-size:clamp(2.8rem,3.9vw,4.5rem)}
.gv-hero .lead{max-width:780px;font-size:1.13rem;color:var(--gv-muted)}
.gv-hero .hero-actions{margin:28px 0 30px}
.gv-tags,.gv-product-highlights{display:flex;gap:8px;flex-wrap:wrap}
.gv-tags span{padding:6px 11px;border:1px solid #ccdde5;border-radius:100px;font-size:.75rem;font-weight:700;color:var(--gv-blue)}
.gv-hero-aside{background:#fff;border:1px solid var(--gv-line);padding:26px;border-radius:16px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}
.gv-hero-aside>img{width:130px;height:50px;object-fit:contain}
.gv-hero-image{width:100%;aspect-ratio:16/10;display:grid;place-items:center;background:#f3f7f8;border:1px dashed #c2d5de;border-radius:10px;overflow:hidden;color:#728996}
.gv-hero-image img{width:100%;height:100%;object-fit:contain}
.gv-hero-aside p{color:var(--gv-muted);font-size:.9rem;margin:0}
.gv-hero-aside a,.gv-guide-note a,.gv-faq a,.gv-related a{color:var(--gv-blue);font-weight:800;font-size:.9rem}
.gv-aside-label{font-size:2.5rem;letter-spacing:-.04em;line-height:1;color:var(--gv-dark);font-weight:800}
.gv-jump{display:flex;flex-wrap:wrap;gap:10px;padding-top:24px;padding-bottom:24px;border-bottom:1px solid var(--gv-line)}
.gv-jump a{font-weight:750;font-size:.9rem;padding:10px 16px;border:1px solid var(--gv-line);border-radius:100px;transition:background .2s,color .2s}
.gv-jump a:hover,.gv-jump a:focus-visible{background:var(--gv-dark);color:#fff}
.gv-catalog{padding:75px 0}.gv-catalog:nth-of-type(odd){background:#f7fafb}
.gv-heading{display:grid;grid-template-columns:1.15fr 1fr;gap:75px;align-items:end;margin-bottom:35px}
.gv-heading h2{font-size:clamp(2rem,3.2vw,3.2rem);margin:0;max-width:720px}
.gv-heading>p{color:var(--gv-muted);margin:0;font-size:1rem;max-width:640px}
.gv-product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.gv-product{display:flex;flex-direction:column;min-width:0;background:#fff;border:1px solid var(--gv-line);border-radius:13px;overflow:hidden;transition:transform .25s,box-shadow .25s}
.gv-product:hover{transform:translateY(-4px);box-shadow:0 14px 28px #163d5412}
.gv-product-image{margin:0;aspect-ratio:16/10;overflow:hidden;display:grid;place-items:center;background:#f0f5f7;border-bottom:1px solid var(--gv-line)}
.gv-product-image>img{width:100%;height:100%;object-fit:contain;padding:18px}
.gv-image-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;padding:20px;color:#637f8d;text-align:center}
.gv-image-placeholder img{width:90px;height:44px;object-fit:contain;opacity:.65}
.gv-image-placeholder span{font-size:.76rem;max-width:220px;line-height:1.45}
.gv-product-body{display:flex;flex-direction:column;flex:1;padding:26px}
.gv-product-top{display:flex;gap:12px;align-items:center;justify-content:space-between;color:#78909b;font-size:.68rem;letter-spacing:.07em;font-weight:800}
.gv-product-series{color:var(--gv-blue)}
.gv-product h3{font-size:1.44rem;line-height:1.15;margin:18px 0 15px;overflow-wrap:anywhere}
.gv-product-highlights{margin:0 0 18px}
.gv-product-highlights span{font-size:.7rem;padding:5px 9px;background:#eaf2f5;color:#315c73;border-radius:5px;font-weight:700}
.gv-product-body>p{font-size:.94rem;line-height:1.6;color:var(--gv-muted);margin-bottom:20px}
.gv-kit-details{border-top:1px solid var(--gv-line);font-size:.83rem;color:var(--gv-muted);margin-top:auto}
.gv-kit-details summary{cursor:pointer;padding:13px 0;font-weight:700;color:var(--gv-dark)}
.gv-kit-details ul{padding-left:20px;margin:0 0 15px;line-height:1.7}
.gv-product-cta{display:flex;justify-content:space-between;border-top:1px solid var(--gv-line);padding-top:16px;font-weight:800;color:var(--gv-blue);font-size:.87rem}
.gv-rock{display:grid;grid-template-columns:190px 1fr 1fr;gap:28px;align-items:center;background:#eaf2f5;border:1px solid var(--gv-line);border-radius:12px;padding:28px;margin-top:24px}
.gv-rock .gv-product-image{border:1px solid #d5e2e8;border-radius:8px;aspect-ratio:4/3;width:190px}
.gv-rock h3{margin:0 0 10px;font-size:1.45rem}.gv-rock p{margin:0;color:var(--gv-muted);font-size:.95rem}
.gv-rock>div:last-child{display:flex;flex-direction:column;gap:12px;padding-left:28px;border-left:1px solid #c7dce5}
.gv-rock>div:last-child span{font-size:.8rem;color:var(--gv-muted)}.gv-rock a{color:var(--gv-blue);font-weight:800;font-size:.87rem}
.gv-note{font-size:.83rem;color:var(--gv-muted);margin:20px 0 0}
.gv-comparison{padding:80px 0;background:#eaf2f5}.gv-table-wrap{overflow-x:auto;border:1px solid #cadde7;border-radius:10px;background:#fff}
.gv-table-wrap table{border-collapse:collapse;width:100%;min-width:670px;text-align:left;font-size:.9rem}
.gv-table-wrap th,.gv-table-wrap td{padding:16px 20px;border-bottom:1px solid #e0eaef}
.gv-table-wrap thead th{background:#153b53;color:#fff;font-size:.78rem}
.gv-table-wrap tbody th{color:var(--gv-dark);font-size:.85rem}.gv-table-wrap tbody th a:hover{text-decoration:underline}
.gv-table-wrap tbody tr:nth-child(even){background:#f6f9fa}.gv-table-wrap tbody tr:last-child th,.gv-table-wrap tbody tr:last-child td{border-bottom:0}
.gv-guide,.gv-faq{padding:85px 0}
.gv-guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
.gv-guide h2{font-size:clamp(2rem,3.2vw,3rem)}.gv-guide p{color:var(--gv-muted);font-size:1rem}
.gv-guide-note{padding:35px;background:#f0f6f8;border-radius:12px;border:1px solid var(--gv-line)}
.gv-guide-note h3{font-size:1.5rem}
.gv-faq{border-top:1px solid var(--gv-line)}.gv-faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
.gv-faq h2{font-size:clamp(2rem,3.2vw,3rem)}
.gv-contact{padding:70px 0;background:#e8f2f5}.gv-contact h2{font-size:clamp(2rem,3.2vw,3rem);max-width:900px}
.gv-contact p{max-width:820px;color:var(--gv-muted);font-size:1.05rem}
.gv-related{display:flex;gap:14px 35px;flex-wrap:wrap;padding-top:30px;padding-bottom:30px}
.gv-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.gv-page a:focus-visible,.gv-page summary:focus-visible,.gv-table-wrap:focus-visible{outline:3px solid #3989bb;outline-offset:5px}
.gv-page [id]{scroll-margin-top:145px}
@media(max-width:1400px){.gv-hero-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:36px}}
@media(max-width:1180px){.gv-hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:28px}.gv-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.gv-heading{gap:40px}.gv-product-body{padding:23px}}
@media(max-width:820px){.gv-hero-grid{grid-template-columns:1fr}.gv-hero-aside{max-width:520px;width:100%;margin:auto}.gv-hero-image{max-height:none}.gv-heading,.gv-guide-grid,.gv-faq-grid{grid-template-columns:1fr;gap:25px}.gv-hero{padding:50px 0}.gv-rock{grid-template-columns:160px 1fr}.gv-rock .gv-product-image{width:160px}.gv-rock>div:last-child{grid-column:1/-1;padding:20px 0 0;border-left:0;border-top:1px solid #c7dce5}.gv-catalog,.gv-comparison,.gv-guide,.gv-faq{padding:55px 0}.gv-page [id]{scroll-margin-top:115px}}
@media(max-width:580px){.gv-product-grid{grid-template-columns:1fr}.gv-product-image{aspect-ratio:16/10}.gv-hero h1{font-size:2.7rem}.gv-rock{grid-template-columns:1fr}.gv-rock .gv-product-image{width:100%;max-width:240px;margin:auto}.gv-jump a{font-size:.8rem;padding:8px 12px}.gv-guide-note{padding:24px}.gv-contact{padding:50px 0}.gv-related{gap:14px;flex-direction:column}}
@media(prefers-reduced-motion:reduce){.gv-product,.gv-jump a{transition:none}.gv-product:hover{transform:none}}
/* MASTER: optional visual sections and small, one-time motion. */
.gv-hero-aside{margin:0;min-width:0}.gv-hero-image{margin:0;background:#fff;border-style:solid}.gv-hero-image img{padding:10px}.gv-hero-copy{animation:gv-enter .6s ease both}.gv-hero-aside{animation:gv-enter .7s .08s ease both}.gv-photo-link{position:relative;display:grid;place-items:center;width:100%;height:100%;min-height:0;overflow:hidden}.gv-photo-link>img{width:100%;height:100%;object-fit:contain;padding:16px;transition:transform .35s ease}.gv-photo-link:hover>img{transform:scale(1.025)}.gv-zoom{position:absolute;right:12px;bottom:12px;display:grid;place-items:center;width:32px;height:32px;background:#fff;border:1px solid var(--gv-line);border-radius:50%;font-size:1.1rem;color:var(--gv-blue)}
.gv-filter{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:0 0 24px}.gv-filter button{border:1px solid var(--gv-line);background:#fff;color:var(--gv-dark);border-radius:100px;padding:10px 16px;font:inherit;font-size:.88rem;font-weight:700;cursor:pointer;transition:background .18s,color .18s}.gv-filter button[aria-pressed=true]{background:var(--gv-dark);color:#fff;border-color:var(--gv-dark)}.gv-filter [data-filter-status]{font-size:.8rem;color:var(--gv-muted);margin-left:auto}
.gv-scenes,.gv-process,.gv-downloads{padding:75px 0}.gv-scenes{background:#f6f8f7}.gv-scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}.gv-scene{margin:0;overflow:hidden;border:1px solid var(--gv-line);border-radius:14px;background:#fff}.gv-scene>img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}.gv-scene figcaption{padding:28px}.gv-scene h3{font-size:1.5rem;margin:16px 0 12px}.gv-scene p{color:var(--gv-muted);margin:0;font-size:.95rem}.gv-illustration{font-size:.72rem;font-weight:700;color:#58736a}
.gv-process{background:#fff}.gv-process-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;padding:0;list-style:none;margin:0}.gv-process-grid li{padding:26px;border-top:2px solid #b9ced8;background:#f7fafb;border-radius:0 0 10px 10px}.gv-step-number{display:block;font-size:1.9rem;font-weight:800;color:#7898a9;margin-bottom:20px}.gv-process-grid h3{font-size:1.2rem;margin-bottom:13px}.gv-process-grid p{color:var(--gv-muted);font-size:.9rem;margin:0}
.gv-downloads{border-top:1px solid var(--gv-line)}.gv-download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.gv-download-grid article{padding:26px;border:1px solid var(--gv-line);border-radius:12px}.gv-download-grid h3{font-size:1.2rem}.gv-download-grid p{font-size:.83rem;color:var(--gv-muted)}.gv-download-grid a{font-weight:800;color:var(--gv-blue)}.gv-reviewed{padding-bottom:28px;color:var(--gv-muted);font-size:.75rem}
.gv-lightbox{padding:48px 20px 20px;border:0;border-radius:14px;max-width:min(1100px,94vw);max-height:92vh;background:#fff;box-shadow:0 25px 80px #0005}.gv-lightbox::backdrop{background:#102c3cbb}.gv-lightbox>img{width:auto;height:auto;max-width:100%;max-height:75vh;object-fit:contain;margin:auto}.gv-lightbox-close{position:absolute;top:7px;right:10px;border:0;background:#eef4f6;color:var(--gv-dark);width:36px;height:36px;border-radius:50%;font-size:1.5rem;cursor:pointer}
@keyframes gv-enter{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(max-width:1180px){.gv-process-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.gv-download-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.gv-scene-grid{grid-template-columns:1fr}.gv-scenes,.gv-process,.gv-downloads{padding:55px 0}.gv-hero-aside{margin:auto}.gv-filter [data-filter-status]{margin-left:0;width:100%}}
@media(max-width:580px){.gv-process-grid,.gv-download-grid{grid-template-columns:1fr}.gv-scene figcaption{padding:22px}}
@media(prefers-reduced-motion:reduce){.gv-hero-copy,.gv-hero-aside{animation:none}.gv-photo-link>img,.gv-filter button{transition:none}.gv-photo-link:hover>img{transform:none}}

.gv-page .reveal{transition:opacity .55s ease,transform .55s ease,box-shadow .25s ease}@media(prefers-reduced-motion:reduce){.gv-page .reveal{transition:none;opacity:1;transform:none}}

/* Audio category: a wider product photograph while keeping the shared MASTER layout. */
@media(min-width:821px){.gv-audio .gv-hero-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}.gv-audio .gv-hero-aside{max-width:none}.gv-audio .gv-hero-image{aspect-ratio:16/11}}
.gv-audio .gv-hero-image img{padding:clamp(16px,3vw,36px)}
.gv-remote-photo{max-width:100%;width:100%;height:100%;object-fit:contain}

/* Additional manufacturer colour photo within the same product card. */
.gv-product-image-options{aspect-ratio:auto;display:flex;flex-direction:column;align-items:stretch;background:#fff}
.gv-product-image-options>.gv-photo-link{aspect-ratio:16/10;height:auto}
.gv-extra-photo{border-top:1px solid var(--gv-line);width:100%;background:#fff}
.gv-extra-photo>.gv-photo-link{aspect-ratio:16/9;height:auto}
.gv-extra-photo p{margin:0;padding:8px 16px 12px;text-align:center;font-size:.8rem;color:var(--gv-muted);font-weight:700}