:root{--navy:#071a38;--blue:#1852d1;--ink:#142033;--muted:#5f6b7a;--line:#e6eaf1;--soft:#f6f8fc;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.6}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}
.container{width:min(var(--max),calc(100% - 36px));margin:auto}.topbar{background:var(--navy);color:#fff;font-size:.88rem}.topbar .container{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:8px 0}.topbar .group{display:flex;gap:22px;flex-wrap:wrap}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}.header-row{display:grid;grid-template-columns:330px 1fr auto;align-items:center;gap:26px;padding:12px 0}.brand img{width:620px;height:150pxpx;object-fit:contain;object-position:left}.nav{display:flex;gap:24px;justify-content:center;font-size:.9rem;font-weight:700}.nav a:hover{color:var(--blue)}
.btn{display:inline-block;background:var(--blue);color:#fff;padding:13px 22px;border-radius:4px;font-weight:800}.btn.outline{background:transparent;border:1px solid #fff}.menu-btn{display:none;background:var(--navy);color:#fff;border:0;padding:10px 13px;border-radius:4px;font-size:1.2rem}
.hero{background:linear-gradient(90deg,rgba(2,16,38,.95),rgba(2,16,38,.58) 48%,rgba(2,16,38,.25)),url('assets/hero-oilfield.jpg') center/cover;color:#fff}.hero .container{padding:82px 0}.hero-copy{max-width:650px}.kicker{font-size:.82rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#9cbcff}.hero h1{font-size:clamp(2.5rem,5vw,4.5rem);line-height:1.03;margin:10px 0 20px}.hero p{font-size:1.08rem;color:#edf3ff}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.section{padding:70px 0}.section.soft{background:var(--soft)}.section-title{text-align:center;margin-bottom:34px}.section-title h2{font-size:2rem;margin:0;color:#123fae}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}.about-grid h3{font-size:1.5rem;margin:0 0 14px}.about-grid p{color:#4f5a68}.founder{border-left:1px solid var(--line);padding-left:34px}.founder h3{color:#1449bd}.established{margin-top:14px;color:#1449bd;font-weight:800}.values{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}.value{border-top:1px solid var(--line);padding-top:16px}.value strong{display:block;color:#123fae}.value p{font-size:.9rem;margin:.35rem 0 0;color:#566170}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.service{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 10px 28px rgba(14,40,80,.06)}.service img{width:100%;height:190px;object-fit:cover}.service-body{padding:18px}.service h3{color:#1044b8;font-size:1.06rem;margin:0 0 8px}.service ul{margin:0;padding-left:18px;font-size:.92rem;color:#354153}
.license-grid{display:grid;grid-template-columns:.85fr 1.4fr;gap:38px;align-items:center}.license-number{font-size:2rem;color:#173fa8;font-weight:900;margin:8px 0 18px}.classification{display:flex;gap:12px;margin:12px 0}.check{width:24px;height:24px;border:2px solid var(--blue);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--blue);font-weight:900;flex:0 0 auto}.license-img{border:1px solid var(--line);padding:12px;background:#fff}
.contact{background:linear-gradient(90deg,#061a38,#0d2c58);color:#fff}.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}.contact h2{font-size:2rem;margin:0 0 10px}.contact p{color:#dce7f7}.contact-details{display:grid;gap:12px;font-size:1.05rem}.footer{background:#041328;color:#c0cede;text-align:center;padding:16px;font-size:.84rem}
@media(max-width:980px){.header-row{grid-template-columns:1fr auto}.nav{display:none;grid-column:1/-1;flex-direction:column;gap:0;padding-bottom:12px}.nav.open{display:flex}.menu-btn{display:block}.header-row>.btn{display:none}.about-grid,.license-grid,.contact-grid{grid-template-columns:1fr}.founder{border-left:0;border-top:1px solid var(--line);padding:26px 0 0}.values{grid-template-columns:repeat(2,1fr)}.service-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.topbar .group:last-child{display:none}.brand img{width:255px;height:70px}.hero .container{padding:58px 0}.hero h1{font-size:2.5rem}.service-grid,.values{grid-template-columns:1fr}.section{padding:52px 0}}
.values{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:18px;
    align-items:start;
}

.value{
    display:flex;
    flex-direction:column;
    height:100%;
}

.value img{
    width:100%;
    height:190px;
    object-fit:cover;
    object-position:center;
    background:#f7f9fc;
    display:block;
    margin-bottom:12px;
    border-radius:6px;
}

.value strong{
    display:block;
    min-height:38px;
}

.value p{
    margin-top:4px;
}

@media(max-width:900px){
    .values{
        grid-template-columns:repeat(2,1fr);
    }
}

@media(max-width:600px){
    .values{
        grid-template-columns:1fr;
    }

    .value img{
        height:240px;
    }
}