:root{color-scheme:dark;--bg:#252F3A;--surface:#344151;--line:#4A5969;--text:#F1F5F9;--muted:#BECAD7;--accent:#91B5CC;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.container{width:min(1120px,calc(100% - 44px));margin-inline:auto}.site-header{border-bottom:1px solid var(--line)}.header-inner,.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.header-inner{min-height:76px}.brand{display:flex;align-items:center;gap:12px;font-weight:750;letter-spacing:-.03em;font-size:1.25rem}.brand-mark{display:grid;place-items:center;background:var(--accent);color:#252F3A;width:35px;height:35px;border-radius:10px;font-weight:850}.brand-mark span{color:#344151}.site-header nav,.site-footer .footer-inner>div{display:flex;gap:26px;font-size:.91rem;color:var(--muted)}.hero{padding:68px 0 72px}.eyebrow{color:var(--accent);font-size:.73rem;font-weight:800;letter-spacing:.19em}.hero h1{max-width:900px;font-size:clamp(2.8rem,6.4vw,5.8rem);line-height:1.09;letter-spacing:-.065em;margin:21px 0 28px}.hero h1 span{color:var(--accent)}.intro{font-size:1.2rem;color:var(--muted);max-width:610px}.intro strong{color:var(--text)}.primary-link{display:inline-flex;align-items:center;gap:26px;margin-top:24px;padding:12px 19px;border-radius:9px;background:var(--accent);color:#252F3A;font-weight:750}.primary-link:hover{background:#B3CFE0;color:#252F3A}.projects-section{padding:80px 0 105px;background:#2B3643;border-top:1px solid var(--line)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}.section-heading h2{font-size:2.5rem;letter-spacing:-.045em;line-height:1.1;margin:10px 0}.section-heading>p{color:var(--muted);font-size:.95rem}.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:24px}.filter-bar input{width:min(440px,100%);padding:13px 16px;border:1px solid var(--line);border-radius:9px;color:var(--text);background:var(--bg);font:inherit}.filter-bar span{color:var(--muted);font-size:.85rem}.project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.project-card{display:flex;flex-direction:column;min-height:230px;padding:26px;background:var(--surface);border:1px solid var(--line);border-radius:13px;transition:border-color .15s,transform .15s}.project-card:hover{border-color:#91B5CC;transform:translateY(-2px)}.card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.card-tag{font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-weight:750}.card-arrow{color:var(--muted)}.project-card h3{font-size:1.15rem;letter-spacing:-.02em;overflow-wrap:anywhere;margin:22px 0 8px;line-height:1.25}.project-card p{margin:0;color:var(--muted);font-size:.9rem}.empty-state{color:var(--muted);grid-column:1/-1}.site-footer{padding:30px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.88rem}.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(max-width:850px){.project-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){.hero{padding:54px 0 58px}.projects-section{padding:60px 0}.project-grid{grid-template-columns:1fr}.section-heading{align-items:start;flex-direction:column}.header-inner nav{gap:12px}.filter-bar{align-items:start;flex-direction:column}.footer-inner{align-items:start;flex-direction:column}}

.project-card[hidden],.empty-state[hidden]{display:none!important}.detail-page{min-height:65vh;padding-top:90px;padding-bottom:95px}.detail-page h1{font-size:clamp(2.5rem,6vw,4.4rem);letter-spacing:-.05em;line-height:1.1;margin:20px 0}.detail-page section{margin-top:65px;max-width:770px}.detail-page section h2{letter-spacing:-.025em}.detail-page section p{color:var(--muted)}.detail-links{display:flex;flex-wrap:wrap;gap:16px}.secondary-link{background:transparent;border:1px solid var(--line);color:var(--text)}.secondary-link:hover{background:#405064;color:var(--accent)}.return-link{margin-top:75px;color:var(--muted)}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.project-card{transition:none}}

/* Smoky Slate focus, contrast, and clarity */
.site-header{background:rgba(37,47,58,.94)}.project-card{box-shadow:0 3px 12px rgba(0,0,0,.10)}.project-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.18)}.card-tag,.eyebrow{color:#91B5CC}.filter-bar input::placeholder{color:#BECAD7}.primary-link:focus-visible,.project-card:focus-visible{outline:3px solid #91B5CC;outline-offset:3px}

.primary-link{color:#252F3A}.primary-link:hover{color:#252F3A}.brand-mark{color:#252F3A}.secondary-link{color:var(--text)}.secondary-link:hover{color:var(--accent)}

/* Project detail content */
.detail-page .intro{max-width:850px}.detail-page section{margin-top:48px}.detail-page section h2{font-size:1.45rem;line-height:1.25}.detail-page section p{max-width:740px}.detail-highlights{padding-left:1.4rem;max-width:740px;color:var(--muted);line-height:1.75}.detail-highlights li{padding-left:.3rem;margin:.5rem 0}.detail-highlights li::marker{color:var(--accent)}


/* Shared project case-study template */
.case-shell{background:#2B3643;border-top:1px solid var(--line);padding:34px 0 90px}
.case-columns{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:56px;align-items:start}
.case-main{min-width:0}
.case-hero{padding:36px 0 65px}
.case-hero h1{font-size:clamp(2.7rem,7vw,5rem);letter-spacing:-.065em;line-height:1.05;margin:18px 0 25px}
.case-lead{font-size:clamp(1.15rem,2.2vw,1.42rem);color:var(--muted);max-width:770px;line-height:1.55}
.case-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.case-btn{display:inline-flex;align-items:center;padding:12px 19px;border-radius:9px;font-size:.9rem;font-weight:750;gap:11px}
.case-primary{background:var(--accent);color:#192630}
.case-primary:hover{background:#B3CFE0;color:#192630}
.case-outline{border:1px solid var(--line);color:var(--text)}
.case-outline:hover{background:var(--surface);color:var(--text)}
.case-section{margin-bottom:70px;scroll-margin-top:20px}
.case-kicker{color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-size:.75rem;font-weight:800}
.case-section h2{font-size:clamp(1.75rem,3vw,2.25rem);letter-spacing:-.04em;line-height:1.18;margin:12px 0 20px}
.case-section p{color:var(--muted);font-size:1rem;line-height:1.8;margin:0 0 14px}
.case-steps{display:grid;gap:12px;margin-top:28px}
.case-step{display:grid;grid-template-columns:36px 1fr;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}
.case-step-number{width:36px;height:36px;display:grid;place-items:center;background:#425466;border-radius:9px;color:var(--accent);font-weight:800}
.case-step h3{margin:5px 0;font-size:1rem;line-height:1.5}
.case-bullets{padding-left:22px;color:var(--muted);line-height:1.85}
.case-bullets li{margin:10px 0}.case-bullets li::marker{color:var(--accent)}
.case-related{background:var(--surface);border:1px solid var(--line);padding:28px;border-radius:12px;margin-top:22px}
.case-related h3{margin:0 0 10px}.case-related p{font-size:.9rem}.case-related .case-ctas{margin-top:20px}
.case-aside{position:sticky;top:28px;margin-top:42px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px}
.case-aside h2{font-size:.9rem;margin:0 0 15px}
.case-toc{display:grid;gap:12px;font-size:.84rem;color:var(--muted)}
.case-rule{height:1px;background:var(--line);margin:23px 0}
.case-aside-links{display:flex;flex-direction:column;align-items:flex-start;gap:12px;font-size:.84rem;font-weight:700;color:var(--accent)}
.site-footer nav{display:flex;gap:26px}
@media(max-width:800px){.case-columns{grid-template-columns:1fr;gap:0}.case-aside{position:static;order:-1;margin-top:0}.case-toc{grid-template-columns:repeat(2,minmax(0,1fr))}.case-hero{padding:20px 0 40px}.case-shell{padding:30px 0 60px}}
@media(max-width:520px){.case-toc{grid-template-columns:repeat(2,minmax(0,1fr))}.case-btn{width:100%;justify-content:center}.site-footer nav{flex-wrap:wrap;gap:16px}}

/* Long-form project case studies */
.case-section>p+p{margin-top:16px}.case-step p{color:var(--muted);line-height:1.7;font-size:.92rem;margin:9px 0 0}.case-bullets li{padding-left:6px;margin-bottom:23px}.case-bullets li strong{display:block;color:var(--text);font-weight:650;margin-bottom:8px}.case-bullets li p{margin:7px 0;color:var(--muted);font-size:.94rem;line-height:1.7}

/* Related project and article cards */
.case-resource-grid{display:grid;gap:14px;margin-top:24px}.case-resource-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px 24px;transition:border-color .15s,transform .15s}.case-resource-card:hover{border-color:var(--accent);transform:translateY(-2px)}.case-resource-card h3{color:var(--text);font-size:1.08rem;margin:0 0 9px;line-height:1.4}.case-resource-card span{color:var(--accent);font-size:.85rem;font-weight:650}.case-resource-card p{color:var(--muted);font-size:.92rem;line-height:1.65;margin:10px 0 0}.case-resource-card:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

/* Approved modern engineering case study — production project pages */
.case-shell{background:#252F3A;padding:0 0 78px;border-top:0}
.case-breadcrumb{padding:28px 0;color:var(--muted);font-size:.9rem}.case-breadcrumb span{margin:0 9px;opacity:.65}
.case-columns{grid-template-columns:minmax(0,1fr) 305px;gap:35px;align-items:start}
.case-hero{display:grid;grid-template-columns:1fr;gap:20px;min-height:0;margin-bottom:34px;padding:31px;border:1px solid #61778b;border-radius:16px;background:linear-gradient(118deg,#202f3e,#304e68 75%,#19446b);overflow:hidden}
.case-hero h1{font-size:clamp(2.2rem,3.65vw,3.4rem);line-height:1.12;letter-spacing:-.06em;margin:10px 0}
.case-tagline{font-size:clamp(1.12rem,2vw,1.48rem);font-weight:720;color:#b2d9f2;margin:0 0 12px}
.case-lead{font-size:1.02rem;line-height:1.65;color:#e0eaf2;margin:0}
.case-hero-visual{background:#152332ec;border:1px solid #344d63;border-radius:12px;padding:17px 19px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 18px;font-size:.84rem;line-height:1.5;color:#e4edf5}
.case-hero-visual span:not(.case-visual-label){display:block;overflow-wrap:anywhere}
.case-visual-label{grid-column:1/-1;font-size:.71rem;letter-spacing:.12em;font-weight:750;color:#a9d2ea}
.case-section{border-top:1px solid var(--line);margin:0;padding:28px 0 35px;scroll-margin-top:22px}
.case-section h2{font-size:clamp(1.5rem,2.5vw,1.95rem);margin:10px 0 15px}
.case-section p{line-height:1.7}
.case-steps{margin-top:19px}
.case-step{background:#2d3c4b;padding:18px}
.case-resource-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.case-resource-card{padding:18px}
.case-aside{position:sticky;top:20px;display:grid;gap:16px;margin:0;padding:0;border:0;background:transparent}
.case-side-card{padding:20px;border:1px solid var(--line);border-radius:12px;background:#2c3b4a}
.case-side-card h2{margin:0 0 14px;font-size:1.04rem}
.case-side-card dl{margin:0}
.case-side-actions{display:grid;gap:10px;margin-bottom:17px}
.case-side-action{display:block;text-align:center;border-radius:8px;padding:11px 12px;font-size:.89rem;font-weight:750}
.case-side-action.case-outline{border:1px solid #94bfd9}
.case-detail{display:grid;grid-template-columns:85px minmax(0,1fr);gap:10px;border-top:1px solid #47596a;padding:10px 0;font-size:.83rem}
.case-detail dt{color:var(--muted)}.case-detail dd{margin:0;overflow-wrap:anywhere}
.case-toc{gap:3px}
.case-toc a{display:block;border-left:3px solid transparent;padding:8px 11px;margin-left:-11px;border-radius:0 7px 7px 0;transition:background-color .15s,color .15s,border-color .15s}
.case-toc a.active,.case-toc a[aria-current="location"]{border-left-color:var(--accent);background:#91B5CC1b;color:#d4efff;font-weight:750}
@media(max-width:860px){.case-columns{grid-template-columns:1fr;gap:24px}.case-aside{position:static;order:0;grid-template-columns:repeat(2,minmax(0,1fr))}.case-toc{grid-template-columns:1fr}.case-hero{padding:26px}}
@media(max-width:560px){.case-hero{padding:23px}.case-hero-visual{grid-template-columns:1fr}.case-resource-grid{grid-template-columns:1fr}.case-aside{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.case-toc a{transition:none}}

/* Section numbers in the production table of contents */
.case-toc a{display:flex;align-items:baseline;gap:12px}.case-toc-number{flex:0 0 21px;font-size:.78rem;font-variant-numeric:tabular-nums;color:var(--accent);font-weight:750}.case-toc a.active .case-toc-number,.case-toc a[aria-current="location"] .case-toc-number{color:#d4efff}