:root{--paper:#f4f0e5;--ink:#20211e;--muted:#5c5e56;--line:#b4b6ad;--accent:#f99d1c;--accent-text:#825000;--focus:#20211e}*{box-sizing:border-box}html{scroll-padding-top:1rem}body{margin:0;background:var(--paper);color:var(--ink);font-family:Helvetica,Arial,sans-serif;font-size:16px;line-height:1.5}a{color:inherit;text-underline-offset:4px}a:focus-visible,button:focus-visible,.table-scroll:focus-visible{outline:3px solid var(--focus);outline-offset:5px}.wrap{max-width:1320px;margin:auto;padding-left:5%;padding-right:5%}.header{display:flex;align-items:center;gap:3rem;padding-top:32px;padding-bottom:30px;border-bottom:2px solid var(--ink)}.brand{font-size:25px;font-weight:800;line-height:.96;letter-spacing:-1px;text-decoration:none}.brand-caption{display:block;font:11px/1.5 'Courier New',monospace;letter-spacing:1.6px;margin-top:12px}.header nav{display:flex;gap:30px;margin-left:auto}.header nav a{font-size:14px;text-decoration:none}.header nav a:hover{text-decoration:underline}.header-note{font:12px/1.4 'Courier New',monospace;max-width:125px;border-left:1px solid var(--line);padding-left:24px}.hero{padding-top:28px;padding-bottom:70px}.hero-meta{display:flex;justify-content:space-between;font:12px/1.4 'Courier New',monospace;letter-spacing:.5px}.hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:70px;margin-top:56px}h1{font-size:clamp(56px,7.8vw,104px);line-height:1.05;letter-spacing:-.045em;margin:0 0 30px;font-weight:700}.intro{font-size:18px;line-height:1.5}.button{display:inline-flex;align-items:center;gap:38px;background:var(--ink);color:var(--paper);padding:16px 20px;text-decoration:none;font-size:14px;margin-top:16px}.button:hover{background:var(--accent);color:#20211e}.button span{font-size:22px;line-height:1}.index-panel{align-self:end;border-top:8px solid var(--accent);padding-top:21px}.mono{font-family:'Courier New',monospace;font-size:12px;letter-spacing:.4px}.index-panel>a{display:grid;grid-template-columns:30px 1fr 20px;gap:12px;padding:25px 0;border-bottom:1px solid var(--line);text-decoration:none;align-items:center}.index-panel>a:hover strong{text-decoration:underline}.index-panel>a>span{font-family:'Courier New',monospace;color:var(--muted);font-size:14px}.index-panel strong{font-size:18px;font-weight:500}.edition{padding-top:28px}.edition p{font-size:24px;line-height:1.25;letter-spacing:-.7px;margin:12px 0 0}.section{padding-top:30px;padding-bottom:60px;border-top:2px solid var(--ink)}.section-heading{display:flex;align-items:baseline;gap:20px;margin-bottom:40px}.section-number{font:14px/1.5 'Courier New',monospace;color:var(--accent-text);white-space:nowrap}h2{font-size:36px;letter-spacing:-1.6px;line-height:1.15;margin:0}.section-heading>.mono{margin-left:auto;color:var(--muted)}.product-layout{display:grid;grid-template-columns:1fr 2fr;gap:70px}.section-copy h3{font-size:28px;letter-spacing:-1px;line-height:1.15;margin:0 0 18px}.section-copy p{max-width:270px;color:var(--muted)}.product{border:1px solid var(--line);padding:28px}.product-top{display:flex;justify-content:space-between;gap:20px;align-items:center}.tag{font:11px/1.4 'Courier New',monospace;color:var(--muted)}.product h3{font-size:32px;letter-spacing:-1px;margin:36px 0 12px}.product>p{color:var(--muted)}dl{margin:28px 0 0}dl>div{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);padding:12px 0;font-size:14px}dt{font-weight:bold}dd{margin:0}.small{font-size:13px;margin-bottom:0}.library-intro{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:24px}.library-intro p{max-width:540px;margin:0}.library-intro>.mono{color:var(--muted)}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;text-align:left;min-width:620px}th{font:12px/1.5 'Courier New',monospace;text-transform:uppercase;border-bottom:2px solid var(--ink);padding:12px 14px}td{border-bottom:1px solid var(--line);padding:24px 14px;font-size:14px}th:first-child,td:first-child{padding-left:0}th:last-child,td:last-child{text-align:right;padding-right:0}.document-note{display:block;color:var(--muted);font-size:13px;margin-top:4px}.download{font-weight:bold}.library-note{font-size:14px;color:var(--muted);margin-top:20px}.connect{border-top:2px solid var(--ink);display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-top:40px;padding-bottom:60px}.connect h2{margin-top:20px;font-size:46px}.connect p{max-width:400px;color:var(--muted)}.channel-list>div{display:flex;justify-content:space-between;gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}.channel-list .mono{color:var(--muted);align-self:center}.footer{border-top:1px solid var(--ink);display:flex;justify-content:space-between;gap:20px;align-items:center;padding-top:25px;padding-bottom:25px;font-size:13px}.footer>span:first-child{font-weight:bold}.footer .mono{font-size:11px}.skip{position:absolute;top:-100px;left:16px;padding:12px;background:var(--ink);color:var(--paper);z-index:2}.skip:focus{top:10px}.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}@media(min-width:1500px){.wrap{padding-left:60px;padding-right:60px}}@media(max-width:800px){.header{gap:20px}.header-note{display:none}.hero-grid{gap:35px;grid-template-columns:1.25fr 1fr}.hero-meta span:last-child{display:none}.product-layout{gap:30px}.section-heading>.mono{display:none}.product-top{display:block}.tag{display:block;margin-top:8px}.library-intro{display:block}.library-intro>.mono{display:block;margin-top:16px}.connect{gap:35px}.footer>.mono{display:none}}@media(max-width:580px){.header{flex-wrap:wrap;padding-top:24px;padding-bottom:20px}.brand{font-size:24px}.header nav{width:100%;margin-left:0;gap:25px;padding-top:10px}.hero{padding-bottom:44px}.hero-grid{grid-template-columns:1fr;margin-top:38px;gap:44px}h1{font-size:clamp(55px,16vw,80px)}.intro{font-size:16px}.desktop{display:none}.index-panel>a{padding:19px 0}.edition p{font-size:22px}.section{padding-bottom:40px}.section-heading{gap:15px;margin-bottom:28px}h2{font-size:30px}.product-layout{grid-template-columns:1fr;gap:20px}.section-copy h3 br{display:none}.section-copy p{max-width:none}.product{padding:20px}.product h3{font-size:28px}.connect{grid-template-columns:1fr;gap:15px;padding-bottom:40px}.connect h2{font-size:38px}.footer{flex-wrap:wrap}.channel-list>div{gap:12px}.channel-list .mono{font-size:11px}}
@media print{body{background:white}.header nav,.button,.footer>a{display:none}.wrap{padding-left:0;padding-right:0}.hero-grid{margin-top:25px}h1{font-size:60px}.section,.connect{break-inside:avoid}.hero{padding-bottom:30px}}

/* Theme and accessibility refinements. Orange is decorative on pale paper. */
:root{color-scheme:light}
:root[data-theme="dark"]{--paper:#1c1e1b;--ink:#f4f0e5;--muted:#bfc0b5;--line:#72756a;--accent-text:#f99d1c;--focus:#f99d1c;color-scheme:dark}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){--paper:#1c1e1b;--ink:#f4f0e5;--muted:#bfc0b5;--line:#72756a;--accent-text:#f99d1c;--focus:#f99d1c;color-scheme:dark}}
.theme-toggle{font:inherit;font-size:.875rem;min-height:44px;padding:8px 12px;background:transparent;color:var(--ink);border:1px solid var(--ink);cursor:pointer;flex-shrink:0}
.theme-toggle:hover{background:var(--accent);color:#20211e;border-color:#20211e}
[hidden]{display:none!important}
.header{flex-wrap:wrap;gap:24px}.header nav{flex-wrap:wrap;gap:16px}
.header nav a,.footer a,.download{display:inline-flex;align-items:center;min-height:44px}
.brand-caption,.header-note,.hero-meta,.mono,.tag,th,.footer .mono,.channel-list .mono{font-size:.875rem}
.small,.document-note,.library-note{font-size:.875rem}
.hero-grid>*,.product-layout>*,.connect>*{min-width:0}
.product-top,.channel-list>div,.footer{flex-wrap:wrap}
.button{max-width:100%;gap:20px}
.brand{line-height:1.1}
@media(max-width:580px){.header nav{order:3}.theme-toggle{margin-left:auto}.hero-meta{overflow-wrap:anywhere}.section-heading{flex-wrap:wrap}dl>div{gap:12px}}
@media print{:root,:root[data-theme="dark"]{--paper:#fff;--ink:#20211e;--muted:#5c5e56;--line:#b4b6ad;--accent-text:#825000;color-scheme:light}.theme-toggle{display:none}}
@media(forced-colors:active){a:focus-visible,button:focus-visible,.table-scroll:focus-visible{outline-color:Highlight}.index-panel{border-color:CanvasText}}

@media print{:root:not([data-theme="light"]){--paper:#fff;--ink:#20211e;--muted:#5c5e56;--line:#b4b6ad;--accent-text:#825000;color-scheme:light}}
@media(max-width:360px){h1{font-size:15vw}.channel-list>div{flex-wrap:wrap}}

.table-scroll{position:relative;max-width:100%}.download{position:relative}

/* Product references and native FAQ disclosures. No additional scripts. */
.faq-list{max-width:880px;margin-left:auto}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{font-size:1.125rem;font-weight:600;padding:22px 4px;cursor:pointer}.faq-list summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.faq-list details p{max-width:65ch;margin:0;padding:0 4px 24px;color:var(--muted)}
.product-page{padding-top:28px;padding-bottom:70px}.breadcrumb{font-size:.875rem;margin-bottom:48px;display:flex;flex-wrap:wrap;gap:12px}.breadcrumb a{min-height:24px}.product-page-heading{border-bottom:2px solid var(--ink);padding-bottom:32px}.product-page-heading h1{font-size:clamp(3rem,7vw,6rem);margin:20px 0}.reference-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:64px;margin-top:36px}.page-contents{align-self:start;border-top:8px solid var(--accent);padding-top:20px}.page-contents>a{display:block;border-bottom:1px solid var(--line);padding:16px 0}.page-contents>.mono{display:block;margin-bottom:8px}.reference-content{min-width:0}.reference-content section{padding:0 0 36px;margin-bottom:32px;border-bottom:1px solid var(--line);scroll-margin-top:24px}.reference-content h2{font-size:2rem;margin:12px 0 20px}.reference-content p{max-width:70ch;color:var(--muted)}
@media(max-width:800px){.reference-layout{grid-template-columns:190px minmax(0,1fr);gap:32px}}
@media(max-width:580px){.reference-layout{grid-template-columns:1fr;gap:36px}.breadcrumb{margin-bottom:32px}.product-page{padding-bottom:40px}.reference-content h2{font-size:1.75rem}}
@media print{.page-contents,.breadcrumb{display:none}.reference-layout{display:block}.faq-list details p{display:block}}

/* Phone layout: compact masthead and comfortable touch navigation. */
@media(max-width:580px){
.header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px 12px;align-items:center}
.brand{font-size:1.25rem;letter-spacing:-.5px}.brand-caption{font-size:.75rem;letter-spacing:.6px;margin-top:10px}
.theme-toggle{margin-left:0;padding:8px;font-size:.875rem}
.header nav{grid-column:1/-1;width:100%;padding-top:0;gap:24px}.header nav a{font-size:1rem}
.page-contents{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}.page-contents>.mono{grid-column:1/-1}.page-contents>a{font-size:.875rem;overflow-wrap:anywhere}
.reference-content{overflow-wrap:anywhere}.reference-content h2{letter-spacing:-.6px}
.faq-list summary{padding:20px 4px;line-height:1.5}
.section-copy h3 br::after{content:" "}
}

.index-title{font-size:2.25rem;letter-spacing:-1.6px;line-height:1.15;margin:0}#projects{border-top:0;padding-top:40px}@media(max-width:580px){.index-title{font-size:1.875rem}#projects{padding-top:30px}}

/* Supplied GCC mark: preserve its geometry and use a light mark on dark surfaces. */
.brand{display:flex;align-items:center;gap:16px}.brand-logo{display:block;flex-shrink:0;width:64px;height:64px;object-fit:contain}.brand-name{display:block}
:root[data-theme="dark"] .brand-logo{filter:invert(1)}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]) .brand-logo{filter:invert(1)}}
@media(max-width:580px){.brand{gap:10px}.brand-logo{width:40px;height:40px}.brand-name{font-size:1rem}.brand-caption{font-size:.65rem;letter-spacing:.2px}.header{gap:16px 10px}}
@media print{:root .brand-logo{filter:none}}

/* Project cards and contained focus rings: keep outlines away from nearby text. */
.project-list{display:grid;gap:24px;min-width:0}.project-list .product{min-width:0}.product h3,.product-page-heading h1{overflow-wrap:anywhere}
.product-page-heading h1{font-size:clamp(2.5rem,6vw,5.5rem);line-height:1.1}
.faq-list summary{padding-left:14px;padding-right:14px}.faq-list summary:focus-visible{outline:3px solid var(--focus);outline-offset:-3px}.faq-list details[open] summary{margin-bottom:12px}.faq-list details p{padding-left:14px;padding-right:14px}
a:focus-visible,button:focus-visible{outline-offset:3px}.button:focus-visible,.theme-toggle:focus-visible{outline-offset:4px}
.channel-list a{display:inline-flex;align-items:center;min-height:44px}.contact-address{font-size:.875rem;overflow-wrap:anywhere;align-self:center}.channel-list>div{align-items:center}.channel-list .mono{overflow-wrap:anywhere}
@media(max-width:580px){.faq-list summary{padding-left:14px;padding-right:14px}.project-list{gap:20px}}

/* Lightweight supplied technical drawings on a consistent paper surface. */
.project-preview{display:block;width:100%;height:280px;object-fit:contain;background:transparent;margin:24px 0;border:0}
.project-drawing{margin:0 0 28px}.project-drawing img{display:block;width:100%;height:auto;max-height:720px;object-fit:contain;background:transparent;border:0}.project-drawing figcaption{font: .875rem/1.5 'Courier New',monospace;padding-top:12px;color:var(--muted)}
@media(max-width:580px){.project-preview{height:240px}.project-drawing img{max-height:none}}

/* Transparent wireframes follow the page theme without a surrounding panel. */
:root[data-theme="dark"] .project-preview,:root[data-theme="dark"] .project-drawing img{filter:invert(1) brightness(1.6)}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]) .project-preview,:root:not([data-theme="light"]) .project-drawing img{filter:invert(1) brightness(1.6)}}
@media print{:root .project-preview,:root .project-drawing img{filter:none}}

/* Compact desktop preview: text left, assembled drawing right. */
.product-with-preview{display:grid;grid-template-columns:minmax(0,1fr) minmax(180px,.8fr);gap:24px;align-items:center}
.product-copy{min-width:0}.product-copy p{color:var(--muted);margin:0 0 12px}.product-with-preview h3{margin:20px 0 12px}.product-with-preview .button{margin-top:4px}.product-with-preview .project-preview{height:240px;margin:0}
@media(max-width:800px) and (min-width:581px){.product-with-preview{grid-template-columns:minmax(0,1fr) 140px;gap:16px}.product-with-preview .project-preview{height:200px}}
@media(max-width:580px){.product-with-preview{grid-template-columns:1fr;gap:20px}.product-with-preview .project-preview{height:240px}.product-with-preview h3{margin-top:24px}}

/* Editorial and accessibility cleanup. */
.section-copy-title{font-size:1.75rem;letter-spacing:-1px;line-height:1.15;margin:0 0 18px}.product .project-card-title{font-size:2rem;letter-spacing:-1px;line-height:1.2;margin:36px 0 12px;overflow-wrap:anywhere}.product-with-preview .project-card-title{margin:20px 0 12px}
.feature{padding:24px 0;border-top:1px solid var(--line)}.feature h3{font-size:1.25rem;line-height:1.3;margin:0 0 12px}.feature p{margin:0 0 12px}.video-modes{padding-left:24px;margin:0;line-height:1.8}
.document-links{list-style:none;padding:0;margin:0}.document-links li+li{margin-top:12px}.document-links a{display:block;padding:12px 14px;border-bottom:1px solid var(--line);min-height:44px;overflow-wrap:anywhere}.document-links a:focus-visible{outline-offset:-3px}
.breadcrumb a{display:inline-flex;align-items:center;min-height:44px}.breadcrumb{align-items:center}.page-contents a,.reference-content p,.faq-list p{overflow-wrap:anywhere}
.skip{top:auto;transform:translateY(-200%)}.skip:focus{top:10px;transform:none}main:focus{outline:none}
@media(max-width:580px){.section-copy-title br{display:none}.section-copy-title br::after{content:" "}.product .project-card-title{font-size:1.75rem}.channel-list>div{gap:12px}.channel-list .mono{font-size:.875rem}}