:root{--ink:#45494B;--muted:#62686b;--paper:#f7f8f8;--line:#dfe2e3;--graphite:#45494B;--gold:#F0761D;--white:#fff;--light:#eceeef}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--graphite);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a.button{cursor:pointer;border:1px solid var(--graphite);background:var(--graphite);color:white;padding:11px 18px;border-radius:7px;text-decoration:none;display:inline-block;font-weight:600}button.secondary,a.secondary{background:transparent;color:var(--ink);border-color:var(--line)}button:hover,a.button:hover{filter:brightness(.92)}:focus-visible{outline:3px solid #F0761D;outline-offset:4px}[hidden]{display:none!important}.wrap{max-width:1180px;margin:auto;padding:0 32px}.top{border-bottom:1px solid var(--line);padding:23px 0;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:25px;letter-spacing:-1px;font-weight:800;color:var(--ink);text-decoration:none}.eyebrow{font-size:12px;letter-spacing:2px;text-transform:uppercase;font-weight:700;color:var(--muted)}.hero{padding:62px 0 46px;display:grid;grid-template-columns:1.55fr 1fr;gap:55px;align-items:end}.hero h1,h1{font-size:clamp(32px,4.4vw,56px);line-height:1.1;letter-spacing:-2px;margin:14px 0 22px;max-width:850px;font-weight:700}.hero p{color:var(--muted);font-size:18px;max-width:650px}.stats{display:grid;grid-template-columns:1fr 1fr;gap:20px;border-top:2px solid var(--graphite);padding-top:24px}.stat strong{font-size:35px;letter-spacing:-1px;line-height:1.2;display:block}.stat span{font-size:13px;color:var(--muted)}.notice{background:#fff4eb;border-left:3px solid #F0761D;padding:17px 21px;border-radius:0 6px 6px 0;font-size:14px;margin:8px 0 26px}.notice strong{display:block;margin-bottom:3px}.notice p{margin:0}.tools{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:35px}.section-title{display:flex;align-items:center;justify-content:space-between;margin:35px 0 20px;gap:20px}.section-title h2{font-size:25px;letter-spacing:-.5px;margin:0}.section-title span{color:var(--muted);font-size:14px}.filters{padding:22px;background:var(--white);border:1px solid var(--line);border-radius:10px;display:grid;grid-template-columns:1.25fr 1fr;gap:14px;margin-bottom:20px}.filters label{font-size:13px;font-weight:650}.filters input,.filters select{width:100%;padding:12px 14px;background:#fafbfb;border:1px solid #c7cbcd;border-radius:6px;color:var(--ink);margin-top:5px}.checkline{grid-column:1/-1;display:flex;align-items:center;gap:9px;color:var(--muted);font-size:14px}.checkline input{width:18px;height:18px;margin:0;accent-color:var(--graphite)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:24px;display:flex;flex-direction:column;min-height:290px}.card .meta{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:1px}.card h3{font-size:20px;line-height:1.35;letter-spacing:-.3px;margin:16px 0 10px}.card h3 a{color:var(--ink);text-decoration:none}.card h3 a:hover{text-decoration:underline}.card p{font-size:14px;color:var(--muted);margin:0 0 18px}.card .foot{margin-top:auto;padding-top:15px;border-top:1px solid var(--line);font-size:13px;display:flex;justify-content:space-between;gap:9px;align-items:center}.tag{font-size:11px;line-height:1.45;border-radius:4px;display:inline-block;padding:4px 7px;background:var(--light);color:var(--graphite);margin-top:12px}.tag.warn{background:#fff0e4;color:#45494B}.empty{text-align:center;padding:35px;color:var(--muted)}footer{margin-top:60px;padding:30px 0;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.back{font-size:14px}.casehead{max-width:940px;padding:42px 0 20px}.casehead h1{font-size:clamp(30px,4vw,48px);margin-bottom:18px}.lead{font-size:20px;color:var(--muted);line-height:1.5}.case-layout{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(240px,1fr);gap:36px;margin:20px 0 45px}.copy{background:white;border:1px solid var(--line);border-radius:10px;padding:32px}.copy h2{font-size:18px;margin:27px 0 8px}.copy h2:first-child{margin-top:0}.copy p{margin:0}.aside{padding:24px;border-top:2px solid var(--graphite);font-size:14px}.aside h2{font-size:17px;margin-top:0}.aside p{color:var(--muted)}.aside a{display:block;margin:12px 0}.photos{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.photo{margin:0;background:white;border:1px solid var(--line);border-radius:8px;overflow:hidden}.photo>.preview{height:190px;display:flex;align-items:center;justify-content:center;background:#eceeef;padding:8px}.photo img{width:100%;height:100%;object-fit:contain}.photo figcaption{padding:12px 14px;font-size:13px}.photo label{display:flex;align-items:center;gap:8px;font-weight:600}.photo input{width:17px;height:17px;accent-color:var(--graphite)}.photo small{display:block;color:var(--muted);margin-top:4px}.reviewbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:20px 0}.reviewbar span{margin-right:auto;color:var(--muted);font-size:14px}.small{font-size:13px;color:var(--muted)}.pager{display:flex;justify-content:space-between;margin:40px 0;gap:20px}.recommend{margin:20px 0 0;color:var(--muted);font-size:14px}.screenreader{position:absolute;left:-10000px}dialog{border:0;border-radius:12px;max-width:95vw;max-height:94vh;padding:20px;background:var(--paper)}dialog::backdrop{background:#45494bdd}dialog img{display:block;max-width:85vw;max-height:75vh;object-fit:contain;margin:12px auto}dialog .tools{margin:5px 0;justify-content:space-between}noscript p{background:#fff0e4;padding:15px}
@media(max-width:960px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.photos{grid-template-columns:repeat(3,minmax(0,1fr))}.hero{grid-template-columns:1fr;gap:20px}.stats{max-width:500px}.case-layout{grid-template-columns:1fr}.aside{padding:20px 0}}
@media(max-width:620px){.wrap{padding:0 20px}.top{padding:18px 0}.top .eyebrow{font-size:9px;letter-spacing:1px}.hero{padding-top:36px}.hero h1,h1{letter-spacing:-1px}.cards,.filters{grid-template-columns:1fr}.photos{grid-template-columns:repeat(2,minmax(0,1fr))}.photo>.preview{height:150px}.copy{padding:22px}.tools .button,.tools button{width:100%;text-align:center}.section-title{align-items:flex-start}.casehead{padding-top:28px}}
@media print{body{background:white}.tools,.filters,.reviewbar,.back,.pager{display:none}.wrap{max-width:none}.cards{display:block}.card{break-inside:avoid;margin-bottom:12px;min-height:0}.case-layout{display:block}.photos{grid-template-columns:repeat(3,1fr)}.photo{break-inside:avoid}a{color:inherit}.copy{border:0;padding:0}}

.copy ul{padding-left:22px;margin:12px 0 0}.copy li{margin:0 0 11px}.photos{grid-template-columns:repeat(3,minmax(0,1fr))}.photo>.preview{height:240px}.photo figcaption{min-height:72px}.photo small{margin-top:7px}.gallery-note{max-width:850px;color:var(--muted)}@media(max-width:620px){.photos{grid-template-columns:1fr}.photo>.preview{height:260px}}

.departments{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin:28px 0}.department{display:block;padding:28px;border:1px solid var(--line);border-radius:14px;background:var(--white);text-decoration:none;color:inherit}.department h2{margin:12px 0}.department p{color:var(--muted);line-height:1.6}.department:focus-visible{outline:3px solid currentColor}.document-kind{display:block;color:var(--muted);font-size:13px;margin:8px 0 14px}.casehead h1{font-size:clamp(28px,4vw,48px)}@media(max-width:620px){.departments{grid-template-columns:1fr}}

/* Display-only galleries: the controls open the viewer; no file-download links. */
.photo>button.preview{width:100%;border:0;border-radius:0;margin:0;padding:8px;background:#eceeef;cursor:zoom-in;color:inherit}
.photo>button.preview:hover{filter:none;background:#e2e5e6}
/* The two approved INB areas, shared with the homepage. */
.department{padding:30px;display:flex;flex-direction:column;border-radius:12px}
.department .eyebrow{font-size:12px;letter-spacing:.1em;color:inherit}
.department-brand{display:block;font-size:56px;line-height:1.05;font-weight:750;letter-spacing:-.045em;margin-top:24px}
.department h2{font-size:clamp(22px,2.3vw,30px);line-height:1.18;margin:6px 0 18px;letter-spacing:-.03em}
.department p{margin:0 0 24px;color:inherit}
.department strong{display:block;margin-top:auto}
.department-technical{background:#F0761D;color:#fff;border-color:#F0761D}
.department-office{background:#45494B;color:#fff;border-color:#45494B}
.department-office .department-brand{color:#F0761D}
.division-brand{color:#F0761D}
@media(max-width:620px){.department{padding:26px}.department-brand{font-size:48px}}

/* Identical logo asset across the main site and every catalogue page. */
.top{flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:14px;letter-spacing:0}
.brand-mark{display:block;position:relative;width:198px;aspect-ratio:2082/453;overflow:hidden;flex:none}
.brand .brand-mark img{position:absolute;width:104.3228%;height:auto;max-width:none;left:-2.0653%;top:-33.3333%;margin:0}
.brand-divider{width:1px;height:43px;background:var(--line)}
.brand-name{font:600 9px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:.05em;color:#45494B}
@media(max-width:620px){.brand{gap:10px}.brand-mark{width:150px}.brand-divider{height:36px}.brand-name{font-size:7px}.top>.eyebrow{width:100%}}
@media(max-width:350px){.brand-divider,.brand-name{display:none}}

/* Research uses the approved graphite and orange palette. */
.catalog-tabs{display:flex;flex-wrap:wrap;gap:8px 22px;border-bottom:1px solid var(--line);padding:16px 0}
.catalog-tabs a{font-size:14px;font-weight:650;text-decoration:none;padding:5px 0;border-bottom:2px solid transparent}
.catalog-tabs a:hover,.catalog-tabs a[aria-current="page"]{color:var(--gold);border-color:var(--gold)}
.research-intro{padding:44px 0 24px;max-width:880px}
.research-intro h1{font-size:clamp(32px,4vw,48px)}
.research-intro p{font-size:18px;color:var(--muted);max-width:720px}
.research-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.research-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;min-width:0}
.research-cover{display:block;background:var(--light);height:245px;overflow:hidden}
.research-cover img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .25s}
.research-cover:hover img{transform:scale(1.035)}
.research-card-copy{padding:26px;display:flex;flex-direction:column;flex:1}
.research-card h2{font-size:25px;line-height:1.2;letter-spacing:-.04em;margin:15px 0 13px}
.research-card h2 a{text-decoration:none}
.research-card p{color:var(--muted);font-size:15px;margin:0 0 22px}
.research-card .research-link{font-weight:650;margin-top:auto;align-self:flex-start}
.research-status{display:inline-block;width:fit-content;font-size:12px;font-weight:700;letter-spacing:.04em;padding:5px 10px;border-radius:4px;background:#fff0e4;color:var(--graphite)}
.research-date{font-size:12px;color:var(--muted);margin-left:10px}
.research-pending{display:flex;align-items:flex-start;justify-content:space-between;gap:32px;background:var(--graphite);color:white;border-radius:12px;padding:30px;margin:24px 0 0;border-top:3px solid var(--gold)}
.research-pending h2{margin:0 0 10px;font-size:25px;line-height:1.3;letter-spacing:-.04em}
.research-pending p{margin:0;max-width:720px;color:#eceeef}
.research-pending .research-status{background:var(--gold);color:white;flex:none;white-space:nowrap}
.research-case .casehead{max-width:900px;padding-bottom:10px}
.research-case .case-layout{margin-top:8px}
.research-case .photos{grid-template-columns:repeat(3,minmax(0,1fr))}
.research-case .photo>.preview{height:240px;padding:0;background:#fff}
.research-case .photo figcaption{min-height:92px}
.research-chart{max-width:880px;margin-top:20px}
.research-chart .photo>.preview{height:auto;min-height:200px;padding:16px}
.research-chart .photo img{height:auto;max-height:460px;object-fit:contain}
.research-case .gallery-note{font-size:14px}
@media(max-width:760px){.research-grid{grid-template-columns:1fr}.research-cover{height:240px}.research-pending{flex-direction:column-reverse;gap:15px;padding:25px}.research-case .photos{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-tabs{gap:6px 17px}.catalog-tabs a{font-size:13px}}
@media(max-width:620px){.research-intro{padding-top:32px}.research-case .photos{grid-template-columns:1fr}.research-case .photo figcaption{min-height:0}.research-case .photo>.preview{height:auto;min-height:210px}.research-case .photo img{height:auto}.research-case .research-chart .photo>.preview{padding:8px}}

.research-roof{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);background:var(--graphite);color:white;border:0;border-top:3px solid var(--gold);margin-top:24px}
.research-roof .research-cover{height:100%;min-height:265px}
.research-roof h2 a,.research-roof .research-link{color:white}
.research-roof p{color:#eceeef}
.research-roof .research-status{background:var(--gold);color:white}
@media(max-width:760px){.research-roof{grid-template-columns:1fr}.research-roof .research-cover{height:240px;min-height:0}}

/* Actual document numbers stay quiet and legible beside titles. */
.card .meta,.casehead .case-meta{font-size:12px;font-weight:400;letter-spacing:0;text-transform:none;color:var(--muted);line-height:1.6}
.document-number{font-variant-numeric:tabular-nums;white-space:nowrap}