/* ============================================================
   Custom Heliarc Inc. — modern rebuild
   ============================================================ */
:root{
  --steel-900:#0d141c;
  --steel-800:#141e29;
  --steel-700:#1d2b39;
  --steel-600:#2a3c4e;
  --steel-400:#5b6f82;
  --steel-200:#c9d4de;
  --steel-100:#eef2f6;
  --paper:#f7f9fb;
  --white:#ffffff;
  --accent:#f5821f;          /* industrial / arc orange */
  --accent-dark:#d76b0c;
  --accent-soft:#fff1e3;
  --ink:#16212c;
  --muted:#5f7081;
  --line:#e2e8ee;
  --shadow-sm:0 1px 3px rgba(13,20,28,.08),0 1px 2px rgba(13,20,28,.06);
  --shadow:0 10px 30px -12px rgba(13,20,28,.35);
  --shadow-lg:0 24px 60px -20px rgba(13,20,28,.45);
  --radius:14px;
  --radius-sm:9px;
  --container:1180px;
  --font-head:'Barlow Semi Condensed',system-ui,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);background:var(--white);
  line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--accent-dark);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;line-height:1.08;letter-spacing:-.01em;margin:0 0 .5em;color:var(--ink)}
h1{font-size:clamp(2.4rem,5.5vw,4.2rem);font-weight:800}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem)}
h3{font-size:1.4rem}
p{margin:0 0 1.1em}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:24px}
.section{padding:clamp(56px,8vw,110px) 0}
.section--tight{padding:clamp(40px,5vw,70px) 0}
.bg-paper{background:var(--paper)}
.bg-steel{background:var(--steel-900);color:var(--steel-100)}
.bg-steel h2,.bg-steel h3{color:#fff}
.center{text-align:center}
.lead{font-size:1.22rem;color:var(--muted);max-width:62ch}
.center .lead{margin-inline:auto}

/* eyebrow / kicker */
.kicker{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--font-head);
  font-weight:600;text-transform:uppercase;letter-spacing:.16em;font-size:.82rem;color:var(--accent-dark)}
.kicker::before{content:"";width:30px;height:2px;background:var(--accent);display:inline-block}
.bg-steel .kicker{color:var(--accent)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--font-head);font-weight:600;
  font-size:1.05rem;letter-spacing:.01em;padding:.85rem 1.7rem;border-radius:var(--radius-sm);
  border:2px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s,color .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -8px rgba(245,130,31,.7)}
.btn--primary:hover{background:var(--accent-dark);color:#fff}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);color:#fff}
.btn--dark{background:var(--steel-800);color:#fff}
.btn--dark:hover{background:var(--steel-900);color:#fff}

/* ---------- header / nav ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .3s,box-shadow .3s,padding .3s;padding:14px 0}
.site-header.scrolled{background:rgba(13,20,28,.94);backdrop-filter:blur(10px);box-shadow:var(--shadow);padding:8px 0}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:13px;color:#fff;font-family:var(--font-head);font-weight:800;font-size:1.32rem;letter-spacing:.01em}
.brand img{height:46px;width:auto;filter:drop-shadow(0 2px 6px rgba(0,0,0,.4))}
.brand span{line-height:1.05}
.brand small{display:block;font-size:.62rem;letter-spacing:.34em;font-weight:500;color:var(--accent);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{color:rgba(255,255,255,.86);font-family:var(--font-head);font-weight:500;font-size:1.05rem;
  padding:.5rem .85rem;border-radius:7px;transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.1)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;z-index:60}
.nav-toggle span{display:block;width:26px;height:2.5px;background:#fff;margin:5px 0;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero__media{position:absolute;inset:0;z-index:0}
.hero__media video,.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(13,20,28,.92) 0%,rgba(13,20,28,.74) 45%,rgba(13,20,28,.4) 100%)}
.hero__inner{position:relative;z-index:2;padding:120px 0 80px;max-width:760px}
.hero h1{color:#fff;text-shadow:0 2px 30px rgba(0,0,0,.4)}
.hero h1 .hl{color:var(--accent)}
.hero__sub{font-size:1.3rem;color:rgba(255,255,255,.9);max-width:54ch;margin-bottom:2rem}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:2.4rem}
.hero__badges span{font-family:var(--font-head);font-weight:600;font-size:.86rem;letter-spacing:.05em;
  text-transform:uppercase;color:#fff;border:1px solid rgba(255,255,255,.28);padding:.4rem .85rem;border-radius:50px;background:rgba(255,255,255,.06)}

/* ---------- stats band ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-top:-70px;position:relative;z-index:5}
.stat{background:#fff;padding:30px 22px;text-align:center}
.stat b{display:block;font-family:var(--font-head);font-weight:800;font-size:2.6rem;color:var(--ink);line-height:1}
.stat b .u{color:var(--accent);font-size:1.6rem;vertical-align:top}
.stat span{display:block;margin-top:.4rem;font-size:.86rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:600}

/* ---------- generic grid + cards ---------- */
.grid{display:grid;gap:28px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);align-items:center}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#d4dde6}
.card .ico{width:52px;height:52px;border-radius:12px;background:var(--accent-soft);color:var(--accent-dark);
  display:grid;place-items:center;margin-bottom:18px}
.card .ico svg{width:28px;height:28px}
.card h3{margin-bottom:.4rem}
.card p{color:var(--muted);font-size:.98rem;margin-bottom:1rem}
.card .more{font-family:var(--font-head);font-weight:600;color:var(--accent-dark);display:inline-flex;gap:.35rem;align-items:center}
.card .more:hover{gap:.6rem;color:var(--accent)}

/* service feature blocks */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center;margin-bottom:clamp(40px,6vw,86px)}
.feature:last-child{margin-bottom:0}
.feature:nth-child(even) .feature__media{order:2}
.feature__media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;aspect-ratio:4/3;object-fit:cover}
.feature__media{position:relative}
.feature__tag{position:absolute;left:18px;bottom:18px;background:var(--accent);color:#fff;font-family:var(--font-head);
  font-weight:700;padding:.4rem 1rem;border-radius:50px;font-size:.9rem;letter-spacing:.03em;box-shadow:var(--shadow)}
.ulist{list-style:none;padding:0;margin:1.2rem 0 0}
.ulist li{position:relative;padding-left:1.9rem;margin-bottom:.7rem;color:var(--muted)}
.ulist li::before{content:"";position:absolute;left:0;top:.5em;width:11px;height:11px;border-radius:3px;
  background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.bg-steel .ulist li{color:var(--steel-200)}
.bg-steel .ulist li::before{box-shadow:0 0 0 4px rgba(245,130,31,.15)}

/* tags / chips */
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:1.1rem}
.chip{font-family:var(--font-head);font-weight:600;font-size:.85rem;letter-spacing:.03em;
  background:var(--steel-100);color:var(--steel-700);border:1px solid var(--line);padding:.35rem .8rem;border-radius:7px}
.bg-steel .chip{background:rgba(255,255,255,.07);color:#fff;border-color:rgba(255,255,255,.15)}

/* testimonials */
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-sm);position:relative}
.quote::before{content:"\201C";position:absolute;top:6px;left:22px;font-family:Georgia,serif;font-size:5rem;color:var(--accent);opacity:.25;line-height:1}
.quote p{font-size:1.05rem;color:var(--ink);font-style:italic;margin-bottom:1.1rem;position:relative}
.quote cite{font-style:normal;font-family:var(--font-head);font-weight:700;color:var(--ink)}
.quote cite small{display:block;font-weight:500;color:var(--muted);font-size:.85rem;letter-spacing:.02em}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery a{display:block;border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow-sm);position:relative;aspect-ratio:1;background:var(--steel-100)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gallery a:hover img{transform:scale(1.08)}

/* CTA band */
.cta{background:linear-gradient(120deg,var(--steel-800),var(--steel-700));color:#fff;border-radius:var(--radius);
  padding:clamp(36px,5vw,64px);text-align:center;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(245,130,31,.35),transparent 70%)}
.cta h2{color:#fff;position:relative}
.cta p{color:rgba(255,255,255,.85);max-width:56ch;margin-inline:auto;position:relative}
.cta .hero__actions{justify-content:center;position:relative}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,60px)}
.info-list{list-style:none;padding:0;margin:1.5rem 0 0}
.info-list li{display:flex;gap:16px;align-items:flex-start;margin-bottom:22px}
.info-list .ico{flex:none;width:46px;height:46px;border-radius:11px;background:var(--accent-soft);color:var(--accent-dark);display:grid;place-items:center}
.info-list .ico svg{width:22px;height:22px}
.info-list b{font-family:var(--font-head);display:block;font-size:1.05rem}
.info-list span,.info-list a{color:var(--muted)}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(24px,3vw,38px);box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--font-head);font-weight:600;font-size:.95rem;margin-bottom:.4rem}
.field input,.field textarea,.field select{width:100%;padding:.8rem 1rem;border:1.5px solid var(--line);border-radius:9px;
  font:inherit;font-size:1rem;color:var(--ink);background:var(--paper);transition:border-color .2s,box-shadow .2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);background:#fff}
.field textarea{min-height:140px;resize:vertical}
.form .btn{width:100%;justify-content:center;margin-top:6px}
.form-note{font-size:.82rem;color:var(--muted);margin:14px 0 0;text-align:center}
.map-embed{border:0;width:100%;height:100%;min-height:340px;border-radius:var(--radius);box-shadow:var(--shadow);filter:grayscale(.2)}

/* page hero (interior) */
.page-hero{position:relative;color:#fff;padding:clamp(140px,18vh,210px) 0 clamp(50px,7vw,80px);overflow:hidden;background:var(--steel-900)}
.page-hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(120deg,rgba(13,20,28,.95),rgba(13,20,28,.6)),url('../img/hero.jpg') center/cover}
.page-hero__inner{position:relative;z-index:2;max-width:760px}
.page-hero h1{color:#fff;margin-bottom:.3rem}
.page-hero p{color:rgba(255,255,255,.85);font-size:1.2rem;max-width:58ch;margin:0}
.crumbs{font-family:var(--font-head);font-size:.9rem;color:rgba(255,255,255,.6);margin-bottom:1rem;letter-spacing:.03em}
.crumbs a{color:rgba(255,255,255,.8)}
.crumbs a:hover{color:var(--accent)}

/* ---------- footer ---------- */
.site-footer{background:var(--steel-900);color:var(--steel-200);padding:70px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:46px}
.site-footer .brand{margin-bottom:16px}
.site-footer p{color:var(--steel-400);font-size:.96rem}
.site-footer h4{color:#fff;font-size:1.05rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:18px}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:10px}
.foot-links a{color:var(--steel-200)}
.foot-links a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.86rem;color:var(--steel-400)}

/* reveal on scroll (with CSS safety-net so content never stays hidden if JS fails) */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;animation:reveal-fallback .01s linear 2s forwards}
.reveal.in{opacity:1;transform:none;animation:none}
@keyframes reveal-fallback{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;animation:none;transition:none}}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);margin-top:-50px}
  .split,.feature,.contact-grid{grid-template-columns:1fr}
  .feature:nth-child(even) .feature__media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:760px){
  body{font-size:16px}
  .nav-toggle{display:block}
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(82vw,330px);flex-direction:column;align-items:flex-start;
    justify-content:flex-start;gap:6px;background:var(--steel-900);padding:96px 26px 40px;
    transform:translateX(100%);transition:transform .35s ease;box-shadow:var(--shadow-lg)}
  .nav-links.open{transform:none}
  .nav-links a{width:100%;font-size:1.15rem;padding:.7rem .5rem}
  .nav-cta{margin:10px 0 0}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .hero{min-height:88vh}
  .foot-bottom{flex-direction:column}
}
/* lightbox */
.lb{position:fixed;inset:0;z-index:90;background:rgba(8,12,17,.92);display:none;align-items:center;justify-content:center;padding:30px;cursor:zoom-out}
.lb.open{display:flex}
.lb img{max-width:92vw;max-height:86vh;border-radius:8px;box-shadow:var(--shadow-lg)}
.lb__close{position:absolute;top:22px;right:28px;color:#fff;font-size:2.4rem;line-height:1;font-family:var(--font-head);cursor:pointer;opacity:.8}
.lb__close:hover{opacity:1}