:root{
  --brand:#b57a2a;     /* copper */
  --brand2:#8f8f8f;    /* grey */
  --dark:#0f1115;
  --text:#1f2430;
  --muted:#6b7280;
  --bg:#f7f8fb;
  --card:#ffffff;
  --border:rgba(15,17,21,.10);
  --shadow:0 18px 45px rgba(15,17,21,.10);
  --radius:18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Helvetica Neue", Helvetica;
  color:var(--text);
  background:linear-gradient(180deg, #ffffff 0%, var(--bg) 55%, #ffffff 100%);
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
.container{width:min(1180px, 92%); margin:auto}
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:12px 16px; border-radius:14px;
  border:1px solid var(--border);
  background:var(--card);
  box-shadow:0 10px 30px rgba(0,0,0,.06);
  font-weight:700;
}
.btn.primary{background:linear-gradient(135deg, var(--brand), #d39a4c); color:#fff; border:none}
.btn.dark{background:var(--dark); color:#fff; border:none}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 12px; border-radius:999px;
  background:rgba(181,122,42,.10);
  border:1px solid rgba(181,122,42,.20);
  color:var(--brand);
  font-weight:800;
  letter-spacing:.2px;
}
.grid{display:grid; gap:18px}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
}
.kicker{color:var(--muted); font-weight:700; letter-spacing:.2px}
h1,h2,h3{margin:0 0 10px 0}
p{margin:0 0 12px 0; color:rgba(31,36,48,.86); line-height:1.65}

/* HEADER */
.header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.76);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(15,17,21,.08);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 0;
}
.brand{display:flex; align-items:center; gap:12px}
.brand img{height:44px; width:auto}
.brand .title{font-weight:900; letter-spacing:.2px}
.menu{display:flex; gap:14px; align-items:center}
.menu a{
  padding:10px 12px;
  border-radius:12px;
  font-weight:800;
  color:rgba(31,36,48,.85);
}
.menu a.active, .menu a:hover{
  background:rgba(181,122,42,.10);
  color:var(--brand);
}
.burger{
  display:none;
  border:1px solid var(--border);
  background:#fff;
  border-radius:12px;
  padding:10px 12px;
  font-weight:900;
}

/* HERO */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid rgba(15,17,21,.08);
}
.hero-wrap{
  padding:56px 0 34px;
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:26px;
  align-items:center;
}
.hero h1{
  font-size: clamp(30px, 4vw, 54px);
  line-height:1.08;
}
.hero .lead{
  font-size: 16px;
  color:rgba(31,36,48,.82);
}
.hero .actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:14px}
.hero .stats{
  display:grid; grid-template-columns:repeat(3, 1fr);
  gap:12px; margin-top:18px;
}
.stat{
  padding:14px;
  border-radius:16px;
  background:rgba(255,255,255,.70);
  border:1px solid rgba(15,17,21,.08);
}
.stat b{display:block; font-size:18px}
.stat span{color:var(--muted); font-weight:700; font-size:12.5px}
.hero-media{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  border:1px solid rgba(15,17,21,.10);
  box-shadow:0 30px 70px rgba(0,0,0,.12);
  background:linear-gradient(135deg, rgba(181,122,42,.10), rgba(143,143,143,.10));
  min-height:360px;
}
.hero-media .overlay{
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(15,17,21,.08), rgba(15,17,21,.45));
}
.hero-media video{
  width:100%; height:100%;
  object-fit:cover;
  display:block;
}
.hero-media .caption{
  position:absolute; left:16px; right:16px; bottom:16px;
  color:#fff;
}
.hero-media .caption b{font-size:16px}
.hero-media .caption p{color:rgba(255,255,255,.85)}

/* SECTIONS */
.section{padding:40px 0}
.section-head{
  display:flex; align-items:flex-end; justify-content:space-between; gap:18px;
  margin-bottom:18px;
}
.section-head h2{font-size: clamp(22px, 2.4vw, 34px)}
.section-head .right{display:flex; gap:10px; flex-wrap:wrap}

/* SERVICES */
.services{grid-template-columns:repeat(3, 1fr)}
.service h3{display:flex; align-items:center; gap:10px}
.icon{
  width:40px; height:40px; border-radius:14px;
  display:grid; place-items:center;
  background:rgba(181,122,42,.12);
  border:1px solid rgba(181,122,42,.22);
  color:var(--brand);
  font-weight:900;
}
.service ul{margin:10px 0 0 18px; color:rgba(31,36,48,.86); line-height:1.7}
.service li{margin:6px 0}

/* GROUP LOGOS */
.logos{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:12px;
}
.logo-box{
  padding:14px;
  border-radius:16px;
  background:#fff;
  border:1px solid rgba(15,17,21,.10);
  display:flex; align-items:center; justify-content:center;
  min-height:92px;
}
.logo-box img{max-height:58px; width:auto; filter:saturate(1.02)}

/* PROJECTS */
.projects{grid-template-columns:repeat(3,1fr)}
.project .thumb{
  border-radius:16px;
  overflow:hidden;
  border:1px solid rgba(15,17,21,.10);
  aspect-ratio: 16/10;
  background:linear-gradient(135deg, rgba(181,122,42,.14), rgba(143,143,143,.16));
}
.project .meta{display:flex; justify-content:space-between; gap:10px; margin-top:12px}
.pill{
  font-size:12px; font-weight:900;
  padding:8px 10px; border-radius:999px;
  background:rgba(143,143,143,.12);
  border:1px solid rgba(143,143,143,.20);
  color:rgba(31,36,48,.85);
}

/* CONTACT */
.form{display:grid; gap:12px}
.field{display:grid; gap:8px}
input, textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(15,17,21,.12);
  background:#fff;
  outline:none;
  font-weight:700;
}
textarea{min-height:120px; resize:vertical}

/* FOOTER */
.footer{
  padding:26px 0;
  border-top:1px solid rgba(15,17,21,.10);
  background:rgba(255,255,255,.85);
}
.footer .row{
  display:flex; align-items:flex-start; justify-content:space-between;
  gap:18px; flex-wrap:wrap;
}
.footer small{color:var(--muted); font-weight:700}

/* RESPONSIVE */
@media (max-width: 980px){
  .hero-wrap{grid-template-columns:1fr; padding:38px 0 24px}
  .services, .projects{grid-template-columns:1fr}
  .logos{grid-template-columns:repeat(2, 1fr)}
  .menu{display:none}
  .burger{display:inline-flex}
  .menu.open{
    display:flex;
    position:absolute; right:4%; top:64px;
    flex-direction:column;
    background:#fff;
    border:1px solid rgba(15,17,21,.10);
    border-radius:16px;
    padding:10px;
    box-shadow:0 25px 60px rgba(0,0,0,.14);
  }
}