:root{
  --ink:#111214;
  --charcoal:#25272a;
  --graphite:#45484d;
  --mid:#70747a;
  --line:#d9dbde;
  --paper:#f6f6f4;
  --white:#fff;
  --accent:#e6e7e5;
  --max:1240px;
  --radius:2px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.55}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{width:min(calc(100% - 48px),var(--max));margin:auto}
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:.3s ease;
  color:#fff;
  background:linear-gradient(180deg,rgba(0,0,0,.55),transparent);
}
.nav.scrolled{background:rgba(17,18,20,.96);backdrop-filter:blur(10px)}
.nav-inner{height:82px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand img{width:190px;height:auto}
.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.nav-links a{opacity:.9;position:relative;padding:8px 0}
.nav-links a:after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:#fff;transition:.25s}
.nav-links a:hover:after,.nav-links a.active:after{width:100%}
.nav-cta{border:1px solid #fff;padding:13px 20px;border-radius:999px!important}
.nav-cta:after{display:none}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:27px;cursor:pointer}

.hero{
  min-height:92vh;display:flex;align-items:flex-end;position:relative;overflow:hidden;
  background:#1a1a1a url("../assets/home-hero.webp") center/cover no-repeat;
}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.78),rgba(0,0,0,.25) 65%,rgba(0,0,0,.4))}
.hero-content{position:relative;color:#fff;padding:180px 0 95px;max-width:900px}
.eyebrow{font-size:12px;letter-spacing:.2em;text-transform:uppercase;font-weight:700;margin-bottom:20px}
.hero h1{font-family:Impact,"Arial Narrow",Arial,sans-serif;font-weight:400;text-transform:uppercase;letter-spacing:.015em;font-size:clamp(54px,8vw,112px);line-height:.9;margin:0 0 28px;max-width:920px}
.hero p{font-size:clamp(17px,2vw,23px);max-width:700px;margin:0 0 35px;color:#e9e9e9}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 24px;background:#fff;color:#111;border:1px solid #fff;font-weight:800;font-size:13px;letter-spacing:.08em;text-transform:uppercase;border-radius:999px;transition:.25s}
.btn:hover{transform:translateY(-2px);background:#111;color:#fff;border-color:#111}
.btn.dark{background:#111;color:#fff;border-color:#111}
.btn.outline{background:transparent;color:#fff;border-color:#fff}

.section{padding:110px 0}
.section.paper{background:var(--paper)}
.section.dark{background:#141517;color:#fff}
.section-head{display:grid;grid-template-columns:1fr 1.6fr;gap:60px;align-items:end;margin-bottom:55px}
.kicker{font-size:12px;letter-spacing:.2em;text-transform:uppercase;font-weight:800;color:#70747a}
.section h2{font-family:Impact,"Arial Narrow",Arial,sans-serif;font-size:clamp(44px,6vw,82px);line-height:.92;text-transform:uppercase;font-weight:400;margin:0;letter-spacing:.01em}
.lead{font-size:19px;max-width:780px;color:#45484d;margin:0}
.dark .lead,.dark .kicker{color:#bfc2c5}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.image-frame{overflow:hidden;background:#ddd}
.image-frame img{width:100%;height:100%;object-fit:cover}
.round-image{width:min(100%,540px);aspect-ratio:1;border-radius:50%;overflow:hidden;margin-left:auto}
.round-image img{width:100%;height:100%;object-fit:cover}
.split-copy h3{font-size:16px;text-transform:uppercase;letter-spacing:.12em;margin:0 0 16px}
.split-copy p{color:#4e5156}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:65px}
.stat{padding:28px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat strong{font-family:Impact,"Arial Narrow",Arial,sans-serif;font-weight:400;font-size:52px;line-height:1}
.stat span{display:block;margin-top:8px;text-transform:uppercase;letter-spacing:.1em;font-size:11px;font-weight:800;color:#62666b}

.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#cfd1d3}
.service-card{background:#fff;padding:38px;min-height:265px;position:relative;transition:.25s}
.service-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.1);z-index:1}
.service-no{font-family:Impact,"Arial Narrow",Arial,sans-serif;font-size:46px;font-weight:400;color:#b7babd}
.service-card h3{font-size:23px;line-height:1.05;text-transform:uppercase;margin:20px 0 12px}
.service-card p{color:#5b5f64;margin:0}
.service-link{display:inline-block;margin-top:22px;font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;border-bottom:1px solid #111;padding-bottom:3px}

.feature-band{display:grid;grid-template-columns:1.15fr .85fr;min-height:560px}
.feature-image{background:url("../assets/about-workflow.webp") center/cover no-repeat;min-height:560px}
.feature-copy{padding:70px;background:#18191b;color:#fff;display:flex;flex-direction:column;justify-content:center}
.feature-copy h2{font-family:Impact,"Arial Narrow",Arial,sans-serif;font-weight:400;text-transform:uppercase;font-size:clamp(44px,5vw,72px);line-height:.93;margin:0 0 25px}
.feature-copy p{color:#c9cbce;max-width:560px}
.pill-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.pill{border:1px solid #575b60;border-radius:999px;padding:8px 12px;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:#e5e5e5}

.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.project-card{min-height:330px;position:relative;overflow:hidden;background:#222}
.project-card:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(0,0,0,.88))}
.project-card.one{background:url("../assets/rock-face.webp") center/cover}
.project-card.two{background:url("../assets/core-samples.webp") center/cover}
.project-card.three{background:linear-gradient(135deg,#202225,#676b70)}
.project-card .project-content{position:absolute;bottom:0;padding:28px;color:#fff}
.project-card h3{margin:0 0 7px;font-size:22px;text-transform:uppercase}
.project-card p{margin:0;color:#d4d6d8;font-size:14px}
.client-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.client{border:1px solid #cfd1d3;padding:13px 16px;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;background:#fff}

.service-detail{padding:0 0 90px}
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.detail-card{border-top:1px solid #111;padding:28px 0}
.detail-card h3{margin:0 0 12px;text-transform:uppercase;font-size:18px}
.detail-card ul{margin:0;padding-left:18px;color:#555b60}
.detail-card li{margin:7px 0}

.page-hero{padding:190px 0 90px;background:#151618;color:#fff;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;inset:0;background:url("../assets/background.webp") center/cover;opacity:.22}
.page-hero .container{position:relative}
.page-hero h1{font-family:Impact,"Arial Narrow",Arial,sans-serif;font-weight:400;font-size:clamp(60px,9vw,120px);line-height:.9;text-transform:uppercase;margin:0;max-width:900px}
.page-hero p{max-width:700px;color:#d0d2d5;font-size:18px;margin-top:25px}

.values{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:#d1d3d5}
.value{background:#fff;padding:28px 20px}
.value strong{display:block;text-transform:uppercase;font-size:12px;letter-spacing:.12em;margin-bottom:10px}
.value span{font-size:14px;color:#64686d}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.contact-list{margin-top:35px}
.contact-item{padding:20px 0;border-top:1px solid #cfd1d3}
.contact-item strong{display:block;text-transform:uppercase;font-size:11px;letter-spacing:.12em;margin-bottom:6px}
.contact-item a,.contact-item span{font-size:18px}
.form{background:#f3f3f1;padding:36px}
.form label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:800;margin-bottom:7px}
.form input,.form textarea,.form select{width:100%;border:1px solid #c6c9cc;background:#fff;padding:13px 14px;margin-bottom:18px;font:inherit}
.form textarea{min-height:140px;resize:vertical}
.form .btn{cursor:pointer}

.footer{background:#111214;color:#fff;padding:70px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:60px}
.footer-logo{width:240px;margin-bottom:20px}
.footer p{color:#aeb1b5;max-width:430px}
.footer h4{font-size:11px;text-transform:uppercase;letter-spacing:.16em;margin:0 0 20px}
.footer a{color:#d9dbdd}
.footer-links{display:grid;gap:10px;font-size:14px}
.footer-bottom{border-top:1px solid #303236;margin-top:55px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#85898e;font-size:12px}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:900px){
  .nav-inner{height:70px}
  .brand img{width:155px}
  .menu-btn{display:block}
  .nav-links{position:absolute;top:70px;left:0;right:0;background:#151618;display:none;flex-direction:column;align-items:flex-start;padding:22px 24px;gap:4px}
  .nav-links.open{display:flex}
  .nav-cta{margin-top:8px}
  .hero{min-height:85vh}
  .hero-content{padding:150px 0 70px}
  .section{padding:80px 0}
  .section-head,.grid-2,.contact-grid,.feature-band{grid-template-columns:1fr;gap:35px}
  .round-image{margin:0 auto}
  .service-grid,.project-grid,.detail-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .values{grid-template-columns:repeat(2,1fr)}
  .feature-image{min-height:400px}
  .footer-grid{grid-template-columns:1fr;gap:35px}
}
@media(max-width:560px){
  .container{width:min(calc(100% - 32px),var(--max))}
  .hero h1{font-size:58px}
  .page-hero{padding:145px 0 65px}
  .page-hero h1{font-size:62px}
  .service-card{padding:28px}
  .values{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* Image library v2 */
.service-card .service-thumb{width:calc(100% + 76px);height:150px;margin:-38px -38px 28px;object-fit:cover;filter:saturate(.86) contrast(1.04)}
.service-detail .detail-card{position:relative;overflow:hidden}
.service-detail .detail-media{width:100%;height:230px;object-fit:cover;margin:0 0 28px;filter:saturate(.86) contrast(1.03)}
.service-detail .detail-card h3{font-size:24px;letter-spacing:.04em}
.project-sector-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.project-sector{position:relative;min-height:190px;overflow:hidden;background:#202225;color:#fff}
.project-sector img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease,filter .4s ease}
.project-sector:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.02) 25%,rgba(0,0,0,.84) 100%)}
.project-sector:hover img{transform:scale(1.05);filter:contrast(1.05)}
.project-sector-content{position:absolute;left:18px;right:18px;bottom:16px;z-index:2}
.project-sector-content h3{font-size:17px;line-height:1;text-transform:uppercase;margin:0 0 6px;letter-spacing:.03em}
.project-sector-content span{font-size:10px;letter-spacing:.11em;text-transform:uppercase;color:#d6d8da}
.about-image-strip{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:12px;margin-top:55px}
.about-image-strip img{width:100%;height:250px;object-fit:cover;filter:saturate(.84)}
.contact-image{width:100%;height:420px;object-fit:cover;filter:saturate(.82)}
@media(max-width:900px){.project-sector-grid{grid-template-columns:repeat(2,1fr)}.about-image-strip{grid-template-columns:1fr}.about-image-strip img{height:280px}}
@media(max-width:560px){.project-sector-grid{grid-template-columns:1fr}.service-card .service-thumb{width:calc(100% + 56px);margin:-28px -28px 24px}.service-detail .detail-media{height:200px}.contact-image{height:300px}}