:root {
  --bg: #07090c;
  --bg-soft: #0d1218;
  --surface: #111820;
  --surface-2: #151f29;
  --text: #f7f8fa;
  --muted: #a8b3bd;
  --gold: #e9c95d;
  --gold-2: #b9912f;
  --aqua: #7cd3da;
  --aqua-dark: #2d8e99;
  --line: rgba(255,255,255,.11);
  --shadow: 0 24px 70px rgba(0,0,0,.38);
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, rgba(124,211,218,.09), transparent 34rem),
    radial-gradient(circle at 95% 15%, rgba(233,201,93,.08), transparent 30rem),
    var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
::selection { background: var(--gold); color: #101010; }

.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.section { padding: 88px 0; }
.section-sm { padding: 58px 0; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .78rem;
  font-weight: 800;
}
.kicker::before { content: ""; width: 34px; height: 2px; background: var(--gold); }
h1, h2, h3, h4 { line-height: 1.12; margin: 0 0 18px; }
h1 { font-size: clamp(2.8rem, 7vw, 6.2rem); letter-spacing: -.045em; }
h2 { font-size: clamp(2rem, 4.6vw, 4rem); letter-spacing: -.035em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); }
p { margin: 0 0 18px; color: var(--muted); }
.lead { font-size: clamp(1.08rem, 2vw, 1.35rem); max-width: 760px; }
.gold { color: var(--gold); }
.aqua { color: var(--aqua); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7,9,12,.78);
  border-bottom: 1px solid rgba(255,255,255,.07);
  backdrop-filter: blur(18px);
}
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 210px; }
.brand-monogram {
  width: 48px; height: 48px; display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.2);
  background: linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  font-size: 1.12rem; font-weight: 900; letter-spacing: -.08em;
  color: white;
}
.brand-copy strong { display:block; font-size: .98rem; letter-spacing: .09em; }
.brand-copy span { display:block; color: var(--gold); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 5px; }
.nav a { color: #dce2e7; padding: 10px 12px; border-radius: 10px; font-size: .91rem; font-weight: 650; }
.nav a:hover, .nav a.active { background: rgba(255,255,255,.07); color: white; }
.nav-cta { border: 1px solid rgba(233,201,93,.45) !important; color: var(--gold) !important; margin-left: 5px; }
.menu-btn { display:none; background:transparent; color:white; border:1px solid var(--line); width:44px; height:44px; border-radius:12px; font-size:1.25rem; }

.hero {
  position: relative;
  min-height: min(840px, calc(100vh - 76px));
  display: grid;
  align-items: center;
  overflow: clip;
}
.hero::before {
  content: ""; position:absolute; inset:0;
  background:
    linear-gradient(90deg, rgba(7,9,12,.97) 0%, rgba(7,9,12,.83) 45%, rgba(7,9,12,.42) 70%, rgba(7,9,12,.65) 100%),
    linear-gradient(0deg, var(--bg) 0%, transparent 30%);
  z-index:1;
}
.hero::after {
  content: ""; position:absolute; inset:0 0 0 46%;
  background: url('bmc-building.jpg') center 38%/cover no-repeat;
  filter: saturate(.82) contrast(1.04);
  opacity:.82;
  z-index:0;
}
.hero .container { position:relative; z-index:2; }
.hero-content { width:min(760px, 100%); padding: 76px 0 100px; }
.hero h1 .outline { color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.72); }
.hero .lead { color:#c8d0d7; margin-top: 24px; }
.hero-actions { display:flex; flex-wrap:wrap; gap:13px; margin-top:32px; }
.btn {
  min-height: 49px; padding: 0 20px; border-radius: 12px;
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  font-weight:800; border:1px solid transparent; transition:.22s ease;
}
.btn-primary { background:var(--gold); color:#101010; box-shadow:0 12px 34px rgba(233,201,93,.18); }
.btn-primary:hover { transform:translateY(-2px); background:#f1d778; }
.btn-secondary { background:rgba(255,255,255,.06); border-color:rgba(255,255,255,.15); color:white; }
.btn-secondary:hover { background:rgba(255,255,255,.11); transform:translateY(-2px); }
.btn-aqua { background:var(--aqua); color:#071013; }
.hero-note { margin-top: 34px; font-size:.86rem; color:#8f9ba6; display:flex; gap:20px; flex-wrap:wrap; }
.hero-note span { display:inline-flex; gap:7px; align-items:center; }
.hero-note span::before { content:""; width:6px;height:6px;background:var(--aqua);border-radius:50%; }

.trust-bar { border-block:1px solid var(--line); background:#0a0f14; }
.trust-grid { display:grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { padding: 24px 22px; border-right:1px solid var(--line); }
.trust-item:last-child { border-right:0; }
.trust-item strong { display:block; color:white; font-size:1.02rem; }
.trust-item span { color:#87949e; font-size:.82rem; }

.section-head { display:flex; align-items:end; justify-content:space-between; gap:30px; margin-bottom:42px; }
.section-head .copy { max-width:730px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:22px; }
.card {
  position:relative; padding:27px; border:1px solid var(--line); border-radius:var(--radius-sm);
  background:linear-gradient(150deg, rgba(255,255,255,.055), rgba(255,255,255,.018));
  overflow:hidden;
}
.card::after { content:""; position:absolute; width:120px;height:120px;border-radius:50%;right:-60px;top:-60px;background:rgba(124,211,218,.08); }
.card-num { color:var(--gold); font-weight:850; font-size:.82rem; letter-spacing:.11em; }
.card h3 { margin-top:22px; }
.card p { margin-bottom:0; }
.card-link { display:inline-flex; gap:8px; align-items:center; margin-top:22px; color:#fff; font-weight:750; font-size:.91rem; }
.card-link span { transition:transform .2s; }
.card-link:hover span { transform:translateX(4px); }

.split { display:grid; grid-template-columns: .92fr 1.08fr; align-items:center; gap:54px; }
.media-card { border-radius:var(--radius); overflow:hidden; border:1px solid var(--line); background:#0c1218; box-shadow:var(--shadow); }
.media-card img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.media-card.logo-card img { aspect-ratio: 16/9; object-fit:cover; }
.checks { display:grid; grid-template-columns:repeat(2,1fr); gap:11px; margin-top:28px; }
.check { padding:13px 14px; border:1px solid var(--line); border-radius:12px; color:#dbe3e9; font-size:.9rem; background:rgba(255,255,255,.025); }
.check::before { content:"✓"; color:var(--gold); font-weight:900; margin-right:9px; }

.band { padding:38px 0; background:linear-gradient(90deg, rgba(124,211,218,.13), rgba(233,201,93,.1)); border-block:1px solid var(--line); }
.band-wrap { display:flex; align-items:center; justify-content:space-between; gap:28px; }
.band h3 { margin:0; font-size:clamp(1.35rem,3vw,2.2rem); }
.band p { margin:5px 0 0; }

.client-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; }
.client-pill { min-height:86px; display:flex; align-items:center; justify-content:center; text-align:center; padding:18px; border:1px solid var(--line); border-radius:14px; color:#e9edf0; font-weight:750; background:rgba(255,255,255,.027); }
.client-pill:hover { border-color:rgba(233,201,93,.42); background:rgba(233,201,93,.05); }

.page-hero { padding:82px 0 66px; border-bottom:1px solid var(--line); position:relative; overflow:hidden; }
.page-hero::after { content:"RKS"; position:absolute; right:3vw; top:10px; font-size:clamp(7rem,20vw,18rem); font-weight:950; color:rgba(255,255,255,.025); letter-spacing:-.1em; line-height:1; }
.page-hero h1 { font-size:clamp(2.7rem,6vw,5.5rem); max-width:980px; }
.breadcrumb { color:#87949e; font-size:.85rem; margin-bottom:20px; }
.breadcrumb a { color:#cdd5da; }

.about-stat-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:34px; }
.stat { border:1px solid var(--line); border-radius:14px; padding:22px; background:rgba(255,255,255,.025); }
.stat strong { font-size:2rem; color:var(--gold); display:block; line-height:1; margin-bottom:8px; }
.stat span { color:#99a6b0; font-size:.86rem; }

.service-stack { display:grid; gap:18px; }
.service-group { border:1px solid var(--line); border-radius:20px; overflow:hidden; background:rgba(255,255,255,.025); }
.service-group-head { padding:24px 26px; display:flex; justify-content:space-between; gap:20px; align-items:center; border-bottom:1px solid var(--line); background:linear-gradient(90deg, rgba(124,211,218,.08), rgba(233,201,93,.06)); }
.service-group-head h2 { font-size:clamp(1.5rem,3vw,2.2rem); margin:0; }
.service-group-head span { font-size:.78rem; color:var(--gold); font-weight:800; letter-spacing:.12em; text-transform:uppercase; }
.service-list { display:grid; grid-template-columns:repeat(2,1fr); padding:12px 24px 20px; }
.service-list div { padding:15px 4px; border-bottom:1px solid rgba(255,255,255,.07); color:#dde3e8; }
.service-list div::before { content:"•"; color:var(--aqua); margin-right:10px; }
.service-list div:nth-last-child(-n+2) { border-bottom:0; }

.equipment-hero { display:grid; grid-template-columns:1.35fr .65fr; gap:16px; }
.equipment-hero .main, .equipment-hero .side { overflow:hidden; border:1px solid var(--line); border-radius:20px; min-height:420px; }
.equipment-hero img { width:100%; height:100%; object-fit:cover; }
.equipment-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:15px; margin-top:28px; }
.equip-card { padding:24px; border:1px solid var(--line); border-radius:15px; background:rgba(255,255,255,.025); }
.equip-card h3 { margin-bottom:8px; }

.contact-grid { display:grid; grid-template-columns:.82fr 1.18fr; gap:30px; }
.contact-list { display:grid; gap:12px; margin-top:25px; }
.contact-item { padding:17px; border:1px solid var(--line); border-radius:14px; background:rgba(255,255,255,.025); }
.contact-item small { display:block; color:#788691; text-transform:uppercase; letter-spacing:.12em; font-weight:800; font-size:.7rem; }
.contact-item a, .contact-item span { display:block; color:#eef2f5; margin-top:5px; font-weight:650; }
.form-card { padding:28px; border:1px solid var(--line); border-radius:20px; background:linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.018)); }
.form-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
.field { display:grid; gap:7px; }
.field.full { grid-column:1/-1; }
.field label { font-size:.79rem; text-transform:uppercase; letter-spacing:.08em; color:#9ba7b1; font-weight:750; }
.field input, .field textarea, .field select { width:100%; border:1px solid rgba(255,255,255,.13); color:white; background:#0b1015; border-radius:11px; padding:13px 14px; outline:none; }
.field input:focus, .field textarea:focus, .field select:focus { border-color:rgba(124,211,218,.6); box-shadow:0 0 0 3px rgba(124,211,218,.08); }
.field textarea { min-height:140px; resize:vertical; }
.form-note { margin:12px 0 0; color:#7f8d97; font-size:.8rem; }
.map-link { display:block; padding:22px; border:1px dashed rgba(124,211,218,.35); border-radius:14px; margin-top:18px; color:#dce9ec; background:rgba(124,211,218,.04); }

.site-footer { border-top:1px solid var(--line); background:#06080a; margin-top:30px; }
.footer-main { padding:52px 0 34px; display:grid; grid-template-columns:1.2fr .65fr .95fr; gap:44px; }
.footer-brand p { max-width:470px; }
.footer-title { color:white; font-size:.78rem; text-transform:uppercase; letter-spacing:.13em; font-weight:850; margin-bottom:14px; }
.footer-links { display:grid; gap:8px; }
.footer-links a { color:#98a5af; }
.footer-links a:hover { color:white; }
.footer-bottom { border-top:1px solid var(--line); padding:18px 0 24px; display:flex; justify-content:space-between; gap:20px; color:#6f7d88; font-size:.79rem; }

.reveal { opacity:0; transform:translateY(18px); transition:opacity .55s ease, transform .55s ease; }
.reveal.show { opacity:1; transform:none; }

@media (max-width: 980px) {
  .menu-btn { display:block; }
  .nav { position:absolute; top:76px; left:20px; right:20px; display:none; padding:12px; border:1px solid var(--line); border-radius:15px; background:#0b1015; box-shadow:var(--shadow); flex-direction:column; align-items:stretch; }
  .nav.open { display:flex; }
  .nav a { width:100%; }
  .nav-cta { margin-left:0; }
  .hero::after { inset:0; opacity:.32; }
  .hero::before { background:linear-gradient(90deg, rgba(7,9,12,.95), rgba(7,9,12,.72)), linear-gradient(0deg, var(--bg), transparent 45%); }
  .grid-3, .client-grid { grid-template-columns:repeat(2,1fr); }
  .split, .contact-grid { grid-template-columns:1fr; }
  .trust-grid { grid-template-columns:repeat(2,1fr); }
  .trust-item:nth-child(2) { border-right:0; }
  .trust-item:nth-child(-n+2) { border-bottom:1px solid var(--line); }
  .footer-main { grid-template-columns:1fr 1fr; }
  .footer-brand { grid-column:1/-1; }
  .equipment-hero { grid-template-columns:1fr; }
  .equipment-hero .side { min-height:300px; }
  .equipment-grid { grid-template-columns:repeat(2,1fr); }
}

@media (max-width: 640px) {
  .container { width:min(calc(100% - 28px), var(--max)); }
  .section { padding:66px 0; }
  .nav-wrap { height:68px; }
  .nav { top:68px; left:14px; right:14px; }
  .brand { min-width:auto; }
  .brand-copy span { display:none; }
  .hero { min-height:720px; }
  .hero-content { padding:66px 0 80px; }
  .hero-actions .btn { width:100%; }
  .section-head { display:block; }
  .section-head .btn { margin-top:18px; }
  .grid-3, .grid-2, .client-grid, .checks, .about-stat-grid, .equipment-grid, .form-grid { grid-template-columns:1fr; }
  .trust-grid { grid-template-columns:1fr; }
  .trust-item { border-right:0; border-bottom:1px solid var(--line); }
  .trust-item:last-child { border-bottom:0; }
  .band-wrap { align-items:flex-start; flex-direction:column; }
  .service-list { grid-template-columns:1fr; }
  .service-list div:nth-last-child(-n+2) { border-bottom:1px solid rgba(255,255,255,.07); }
  .service-list div:last-child { border-bottom:0; }
  .service-group-head { align-items:flex-start; flex-direction:column; }
  .field.full { grid-column:auto; }
  .footer-main { grid-template-columns:1fr; gap:28px; }
  .footer-brand { grid-column:auto; }
  .footer-bottom { flex-direction:column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *, *::before, *::after { animation-duration:.001ms !important; transition-duration:.001ms !important; }
  .reveal { opacity:1; transform:none; }
}