:root {
  --navy: #0b1f33;
  --navy-2: #173a5d;
  --blue: #24547d;
  --gold: #f2a900;
  --gold-dark: #c98900;
  --ink: #14202b;
  --muted: #5d6a76;
  --line: #dfe5ea;
  --soft: #f4f7f9;
  --white: #ffffff;
  --success: #176b46;
  --danger: #a43131;
  --shadow: 0 16px 40px rgba(11,31,51,.12);
  --radius: 16px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.narrow { width: min(calc(100% - 40px), 820px); margin-inline: auto; }
.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; }
.skip-link { position: fixed; z-index: 9999; left: 12px; top: -80px; background: var(--gold); color: var(--navy); padding: 10px 14px; border-radius: 8px; font-weight: 800; }
.skip-link:focus { top: 12px; }
.topbar { background: var(--navy); color: rgba(255,255,255,.82); font-size: .84rem; }
.topbar-inner { min-height: 36px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.topbar a { color: white; text-decoration:none; font-weight:700; }
.site-header { position: sticky; top:0; z-index:1000; background:rgba(255,255,255,.97); border-bottom:1px solid var(--line); backdrop-filter: blur(10px); }
.nav-wrap { min-height: 78px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand { display:inline-flex; align-items:center; gap:12px; text-decoration:none; color:var(--navy); font-size:1.04rem; letter-spacing:.01em; }
.brand img { flex:none; }
.brand strong { color:var(--navy); font-size:1.3rem; }
.site-nav { display:flex; align-items:center; gap:16px; }
.site-nav > a:not(.button) { text-decoration:none; color:#314253; font-weight:700; font-size:.92rem; padding:27px 0; border-bottom:3px solid transparent; }
.site-nav > a:not(.button):hover, .site-nav > a.active { color:var(--navy); border-bottom-color:var(--gold); }
.nav-toggle { display:none; border:0; background:transparent; padding:9px; cursor:pointer; }
.nav-toggle span:not(.sr-only) { display:block; width:26px; height:2px; background:var(--navy); margin:5px 0; transition:.2s; }
.button { white-space:nowrap; display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:48px; padding:12px 20px; border-radius:10px; border:2px solid transparent; font-weight:800; text-decoration:none; cursor:pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); box-shadow:0 10px 20px rgba(11,31,51,.16); }
.button-primary { background:var(--gold); color:var(--navy); }
.button-primary:hover { background:#ffbc20; }
.button-secondary { border-color:rgba(255,255,255,.78); color:white; background:rgba(255,255,255,.08); }
.button-outline { border-color:var(--navy); color:var(--navy); background:white; }
.button-small { min-height:40px; padding:8px 14px; border-radius:8px; font-size:.88rem; }
.eyebrow { color:var(--gold-dark); text-transform:uppercase; letter-spacing:.14em; font-size:.78rem; font-weight:900; margin:0 0 10px; }
.eyebrow-light { color:#ffd56d; }
h1,h2,h3 { line-height:1.15; color:var(--navy); margin-top:0; }
h1 { font-size:clamp(2.4rem, 5.4vw, 5rem); letter-spacing:-.045em; margin-bottom:20px; }
h2 { font-size:clamp(1.8rem, 3.4vw, 3rem); letter-spacing:-.035em; margin-bottom:18px; }
h3 { font-size:1.25rem; margin-bottom:10px; }
.lead { font-size:clamp(1.05rem, 1.5vw, 1.25rem); color:var(--muted); max-width:760px; }
.hero { position:relative; min-height:680px; display:grid; align-items:center; color:white; overflow:hidden; background:var(--navy); }
.hero::before { content:""; position:absolute; inset:0; background:linear-gradient(90deg,rgba(5,18,31,.96) 0%,rgba(5,18,31,.87) 44%,rgba(5,18,31,.42) 75%,rgba(5,18,31,.15) 100%); z-index:1; }
.hero-bg { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.hero-content { position:relative; z-index:2; padding:100px 0; max-width:830px; }
.hero h1 { color:white; }
.hero .lead { color:rgba(255,255,255,.84); max-width:720px; }
.hero-actions { display:flex; flex-wrap:wrap; gap:12px; margin-top:30px; }
.hero-note { margin-top:26px; display:flex; flex-wrap:wrap; gap:18px; color:rgba(255,255,255,.76); font-size:.9rem; font-weight:700; }
.hero-note span::before { content:"✓"; color:var(--gold); margin-right:7px; }
.stat-strip { margin-top:-42px; position:relative; z-index:4; }
.stat-grid { display:grid; grid-template-columns:repeat(4,1fr); background:white; border-radius:var(--radius); box-shadow:var(--shadow); overflow:hidden; }
.stat { padding:25px; text-align:center; border-right:1px solid var(--line); }
.stat:last-child { border-right:0; }
.stat strong { display:block; color:var(--navy); font-size:1.04rem; }
.stat span { color:var(--muted); font-size:.88rem; }
.section { padding:92px 0; }
.section-soft { background:var(--soft); }
.section-dark { background:var(--navy); color:white; }
.section-dark h2,.section-dark h3 { color:white; }
.section-dark .lead,.section-dark p { color:rgba(255,255,255,.76); }
.section-heading { display:flex; justify-content:space-between; align-items:end; gap:30px; margin-bottom:36px; }
.section-heading > div { max-width:760px; }
.two-paths { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.path-card { padding:42px; border-radius:var(--radius); min-height:390px; display:flex; flex-direction:column; justify-content:flex-end; position:relative; overflow:hidden; box-shadow:var(--shadow); }
.path-card::before { content:""; position:absolute; inset:0; background:linear-gradient(0deg,rgba(5,18,31,.96),rgba(5,18,31,.25)); }
.path-card > * { position:relative; z-index:1; }
.path-card h2,.path-card p { color:white; }
.path-card p { color:rgba(255,255,255,.8); }
.path-gc { background:linear-gradient(135deg,#0b1f33,#24547d); }
.path-client { background:linear-gradient(135deg,#314b39,#6e806f); }
.cards { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.card { background:white; border:1px solid var(--line); border-radius:var(--radius); padding:28px; box-shadow:0 8px 25px rgba(11,31,51,.06); }
.card-icon { width:48px; height:48px; border-radius:12px; display:grid; place-items:center; background:#fff4d6; color:var(--navy); font-weight:900; margin-bottom:18px; }
.card p { color:var(--muted); margin-bottom:0; }
.card-link { display:inline-block; margin-top:18px; color:var(--blue); font-weight:800; text-decoration:none; }
.market-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
.market-pill { border:1px solid var(--line); border-radius:12px; padding:18px; background:white; font-weight:800; color:var(--navy); }
.projects-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.project-card { border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:white; box-shadow:0 8px 24px rgba(11,31,51,.07); }
.project-card img { width:100%; aspect-ratio: 8/6; object-fit:cover; }
.project-card-body { padding:22px; }
.project-meta { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:10px; }
.tag { display:inline-flex; padding:5px 9px; border-radius:999px; background:#eef3f7; color:#3f566b; font-size:.73rem; font-weight:800; }
.project-card p { color:var(--muted); margin-bottom:0; }
.check-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:14px 34px; margin-top:28px; }
.check-item { display:flex; gap:12px; align-items:flex-start; }
.check-item::before { content:"✓"; display:grid; place-items:center; flex:none; width:26px; height:26px; border-radius:50%; background:var(--gold); color:var(--navy); font-weight:900; }
.cta { background:linear-gradient(135deg,var(--navy),var(--navy-2)); color:white; padding:54px; border-radius:var(--radius); display:flex; align-items:center; justify-content:space-between; gap:30px; }
.cta h2,.cta p { color:white; }
.cta p { color:rgba(255,255,255,.78); margin-bottom:0; }
.cta-actions { display:flex; flex-wrap:wrap; gap:12px; flex:none; }
.page-hero { background:linear-gradient(135deg,var(--navy),var(--navy-2)); color:white; padding:88px 0 78px; position:relative; overflow:hidden; }
.page-hero::after { content:""; position:absolute; width:480px; height:480px; border-radius:50%; right:-160px; top:-260px; background:rgba(242,169,0,.15); }
.page-hero h1 { color:white; font-size:clamp(2.3rem,4.5vw,4.3rem); max-width:900px; }
.page-hero .lead { color:rgba(255,255,255,.8); }
.breadcrumb { font-size:.86rem; color:rgba(255,255,255,.65); margin-bottom:20px; }
.breadcrumb a { color:white; text-decoration:none; }
.split { display:grid; grid-template-columns:1fr 1fr; gap:58px; align-items:center; }
.split img { border-radius:var(--radius); box-shadow:var(--shadow); }
.list-clean { list-style:none; padding:0; margin:24px 0 0; }
.list-clean li { padding:10px 0 10px 30px; position:relative; border-bottom:1px solid var(--line); }
.list-clean li::before { content:""; width:10px; height:10px; border-radius:50%; background:var(--gold); position:absolute; left:0; top:18px; }
.service-detail { display:grid; grid-template-columns:220px 1fr; gap:38px; padding:38px 0; border-bottom:1px solid var(--line); }
.service-detail:last-child { border-bottom:0; }
.service-number { color:var(--gold-dark); font-size:3rem; font-weight:900; line-height:1; }
.filters { display:flex; flex-wrap:wrap; gap:10px; margin-bottom:30px; }
.filter-button { border:1px solid var(--line); background:white; color:var(--navy); padding:9px 14px; border-radius:999px; cursor:pointer; font-weight:800; }
.filter-button.active,.filter-button:hover { background:var(--navy); color:white; border-color:var(--navy); }
.project-card[hidden] { display:none; }
.form-layout { display:grid; grid-template-columns:minmax(0,1fr) 340px; gap:40px; align-items:start; }
.form-card { background:white; border:1px solid var(--line); border-radius:var(--radius); padding:36px; box-shadow:var(--shadow); }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.field { display:flex; flex-direction:column; gap:7px; }
.field-full { grid-column:1/-1; }
.field label { font-weight:800; color:var(--navy); font-size:.92rem; }
.field input,.field select,.field textarea {
  width:100%; border:1px solid #cbd5dd; border-radius:9px; padding:12px 13px; color:var(--ink); background:white;
}
.field input:focus,.field select:focus,.field textarea:focus { outline:3px solid rgba(242,169,0,.24); border-color:var(--gold-dark); }
.field textarea { min-height:140px; resize:vertical; }
.help { font-size:.78rem; color:var(--muted); margin:0; }
.honeypot { position:absolute !important; left:-9999px !important; width:1px !important; height:1px !important; overflow:hidden !important; }
.sidebar-card { background:var(--navy); color:white; padding:30px; border-radius:var(--radius); position:sticky; top:130px; }
.sidebar-card h2,.sidebar-card h3 { color:white; }
.sidebar-card p { color:rgba(255,255,255,.76); }
.sidebar-card a { color:white; }
.notice { padding:16px 18px; border-radius:10px; background:#fff7df; border:1px solid #f3d173; color:#5d490b; }
.table-wrap { overflow-x:auto; border:1px solid var(--line); border-radius:12px; }
table { border-collapse:collapse; width:100%; min-width:680px; }
th,td { padding:16px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top; }
th { background:var(--soft); color:var(--navy); }
.capability-grid { display:grid; grid-template-columns:1.2fr .8fr; gap:30px; }
.capability-box { border:1px solid var(--line); border-radius:12px; padding:24px; }
.print-only { display:none; }
.site-footer { background:#071525; color:rgba(255,255,255,.72); padding:68px 0 22px; }
.footer-grid { display:grid; grid-template-columns:1.6fr repeat(3,1fr); gap:42px; }
.footer-grid > div { display:flex; flex-direction:column; align-items:flex-start; gap:9px; }
.footer-brand { color:white; margin-bottom:10px; }
.footer-brand strong { color:white; }
.footer-grid p { max-width:420px; }
.footer-grid a { text-decoration:none; color:rgba(255,255,255,.78); }
.footer-grid a:hover { color:white; }
.footer-heading { color:white; font-size:.9rem; text-transform:uppercase; letter-spacing:.12em; margin-bottom:8px; }
.footer-bottom { display:flex; justify-content:space-between; gap:20px; border-top:1px solid rgba(255,255,255,.12); margin-top:46px; padding-top:20px; font-size:.82rem; }
@media (max-width: 1000px) {
  .nav-toggle { display:block; }
  .site-nav { display:none; position:absolute; left:0; right:0; top:114px; background:white; padding:16px 20px 24px; border-bottom:1px solid var(--line); box-shadow:var(--shadow); flex-direction:column; align-items:stretch; gap:0; }
  .site-nav.open { display:flex; }
  .site-nav > a:not(.button) { padding:13px 0; border-bottom:1px solid var(--line); }
  .nav-cta { margin-top:14px; }
  .cards,.projects-grid { grid-template-columns:repeat(2,1fr); }
  .market-grid { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1.4fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column:2/4; }
  .form-layout { grid-template-columns:1fr; }
  .sidebar-card { position:static; }
}
@media (max-width: 760px) {
  .container,.narrow { width:min(calc(100% - 28px), var(--max)); }
  .topbar-inner span:first-child { display:none; }
  .topbar-inner { justify-content:center; }
  .hero { min-height:640px; }
  .hero::before { background:linear-gradient(90deg,rgba(5,18,31,.96),rgba(5,18,31,.75)); }
  .hero-content { padding:80px 0; }
  .hero-actions .button { width:100%; }
  .stat-strip { margin-top:0; }
  .stat-grid { grid-template-columns:1fr 1fr; border-radius:0; }
  .stat:nth-child(2) { border-right:0; }
  .stat:nth-child(-n+2) { border-bottom:1px solid var(--line); }
  .section { padding:66px 0; }
  .section-heading { display:block; }
  .two-paths,.cards,.projects-grid,.split,.capability-grid { grid-template-columns:1fr; }
  .path-card { min-height:340px; padding:30px; }
  .market-grid { grid-template-columns:1fr 1fr; }
  .check-grid { grid-template-columns:1fr; }
  .cta { padding:34px; flex-direction:column; align-items:flex-start; }
  .cta-actions,.cta-actions .button { width:100%; }
  .service-detail { grid-template-columns:1fr; gap:12px; }
  .service-number { font-size:2rem; }
  .form-card { padding:24px; }
  .form-grid { grid-template-columns:1fr; }
  .field-full { grid-column:auto; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .footer-grid > div:first-child,.footer-grid > div:last-child { grid-column:1/-1; }
  .footer-bottom { flex-direction:column; }
}
@media (max-width: 480px) {
  .brand span { font-size:.9rem; }
  .brand img { width:42px; height:42px; }
  .nav-wrap { min-height:68px; }
  .site-nav { top:104px; }
  .market-grid { grid-template-columns:1fr; }
}
@media print {
  .site-header,.site-footer,.button,.no-print { display:none !important; }
  body { color:#111; }
  .page-hero { background:white; color:#111; padding:20px 0; }
  .page-hero h1,.page-hero .lead,.breadcrumb { color:#111; }
  .section { padding:24px 0; }
  .print-only { display:block; }
  .capability-box { break-inside:avoid; }
}


/* ERT official branding and real project photography */
.site-logo { width: 100px; height:auto; max-height:82px; object-fit:contain; display:block; }
.footer-site-logo { width: 210px; height:auto; display:block; background:#fff; padding:8px 10px; border-radius:10px; }
.topbar-links { display:flex; align-items:center; gap:18px; }
.topbar-links a { white-space:nowrap; }
.progression-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.progression-card { margin:0; border-radius:var(--radius); overflow:hidden; background:white; border:1px solid var(--line); box-shadow:0 8px 24px rgba(11,31,51,.08); }
.progression-card img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.progression-card figcaption { padding:18px 20px 20px; display:flex; flex-direction:column; gap:4px; }
.progression-card figcaption span { color:var(--gold-dark); font-size:.76rem; text-transform:uppercase; letter-spacing:.12em; font-weight:900; }
.progression-card figcaption strong { color:var(--navy); font-size:1.03rem; }
.featured-case-study { border:1px solid var(--line); border-radius:var(--radius); padding:38px; box-shadow:var(--shadow); background:white; }
.case-study-intro { display:grid; grid-template-columns:1.4fr .8fr; gap:38px; margin-bottom:34px; }
.case-study-facts { display:grid; gap:12px; align-content:start; }
.case-study-facts span { display:flex; flex-direction:column; padding:14px 16px; border-radius:10px; background:var(--soft); color:var(--muted); }
.case-study-facts strong { color:var(--navy); font-size:.78rem; text-transform:uppercase; letter-spacing:.09em; margin-bottom:3px; }
.case-study-scope { border-top:1px solid var(--line); margin-top:34px; padding-top:28px; }
.structural-heading { margin-top:78px; }
.photo-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.photo-grid figure { margin:0; background:white; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; box-shadow:0 8px 24px rgba(11,31,51,.07); }
.photo-grid img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.photo-grid figure:first-child img { object-position:center 58%; }
.photo-grid figcaption { padding:16px 18px; color:var(--navy); font-weight:800; }
.hero-bg { object-position:center; }
.footer-brand { background:transparent; padding:0; }
@media (max-width:1180px) {
  .site-logo { width:88px; }
  .site-nav { gap:14px; }
  .site-nav > a:not(.button) { font-size:.86rem; }
}
@media (max-width:760px) {
  .topbar-links { gap:10px; }
  .topbar-links a[href^="mailto"] { display:none; }
  .site-logo { width:78px; height:auto; max-height:66px; }
  .progression-grid,.photo-grid,.case-study-intro { grid-template-columns:1fr; }
  .featured-case-study { padding:24px; }
}
@media print {
  .footer-site-logo,.site-logo { background:white !important; }
}

.nav-wrap { min-height:92px; }
@media (max-width:480px){.nav-wrap{min-height:76px;}}