/* Lumemach — light-silver industrial design system */
:root{
  --bg:#eef0f3;          /* light silver page */
  --bg2:#e4e7eb;         /* deeper silver band */
  --surface:#ffffff;
  --ink:#181d23;
  --muted:#5c6570;
  --accent:#1f6f8b;      /* steel teal */
  --accent-dark:#155a72;
  --line:#d7dbe0;
  --dark:#14181d;
  --radius:12px;
  --shadow:0 1px 2px rgba(20,26,32,.06),0 8px 24px rgba(20,26,32,.07);
  --max:1120px;
  --mono:ui-monospace,'Cascadia Mono','SF Mono',Consolas,Menlo,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ── Header ── */
.top{position:sticky;top:0;z-index:50;background:rgba(238,240,243,.92);backdrop-filter:blur(8px);
     border-bottom:1px solid var(--line)}
.top-in{max-width:var(--max);margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.brand img{height:40px;width:auto}
.brand .wm{font-weight:800;letter-spacing:.14em;font-size:15px;color:var(--ink)}
.nav{display:flex;align-items:center;gap:22px}
.nav a{color:var(--ink);font-size:14.5px;font-weight:600;opacity:.85}
.nav a:hover{opacity:1;text-decoration:none;color:var(--accent)}
.nav a.cta{background:var(--ink);color:#fff;padding:9px 16px;border-radius:8px;opacity:1}
.nav a.cta:hover{background:var(--accent-dark)}
.langs{display:flex;gap:4px;font-size:13px}
.langs a{padding:4px 8px;border-radius:6px;color:var(--muted);font-weight:700;letter-spacing:.04em}
.langs a.on{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}
@media(max-width:900px){
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
       flex-direction:column;align-items:stretch;padding:12px 24px 18px;gap:4px}
  .nav.open{display:flex}
  .nav a{padding:10px 4px;border-bottom:1px solid var(--bg2)}
  .nav a.cta{text-align:center;margin-top:8px}
  .burger{display:block}
}

/* ── Hero ── */
.hero{background:
  linear-gradient(180deg,rgba(255,255,255,.55),rgba(238,240,243,0) 40%),
  repeating-linear-gradient(90deg,rgba(24,29,35,.045) 0 1px,transparent 1px 96px),
  repeating-linear-gradient(0deg,rgba(24,29,35,.035) 0 1px,transparent 1px 96px),
  var(--bg);
  border-bottom:1px solid var(--line);overflow:hidden}
.hero-in{max-width:var(--max);margin:0 auto;padding:72px 24px 64px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.kicker{font-size:12.5px;font-weight:800;letter-spacing:.18em;color:var(--accent);text-transform:uppercase;
  display:flex;align-items:center;gap:10px;margin-bottom:18px}
.kicker::before{content:"";width:26px;height:2px;background:var(--accent);display:inline-block}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.12;letter-spacing:-.015em;font-weight:800}
.hero p.sub{margin:18px 0 26px;color:var(--muted);font-size:17px;max-width:56ch}
.btn{display:inline-block;padding:13px 22px;border-radius:9px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-dark);text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink);border-color:#b9bfc6}
.btn.ghost:hover{border-color:var(--ink);text-decoration:none}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-visual .stack{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hero-visual img{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff}
.hero-visual .chip{position:absolute;left:-8px;bottom:18px;background:var(--dark);color:#e8ecef;
  font-family:var(--mono);font-size:12.5px;padding:10px 14px;border-radius:8px;letter-spacing:.04em;
  box-shadow:var(--shadow)}
.hero-visual .chip b{color:#8fd0e4}

/* ── Stats bar ── */
.stats{background:var(--dark);color:#e8ecef}
.stats-in{max-width:var(--max);margin:0 auto;padding:26px 24px;display:grid;
  grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.stats b{display:block;font-size:26px;font-weight:800;letter-spacing:-.01em}
.stats span{font-size:12.5px;color:#9aa5ae;letter-spacing:.08em;text-transform:uppercase}
@media(max-width:720px){.stats-in{grid-template-columns:repeat(2,1fr)}}

/* ── Sections ── */
section.band{padding:72px 0}
section.band.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(24px,3vw,32px);letter-spacing:-.01em;font-weight:800;margin-bottom:10px}
h3{font-size:19px;font-weight:750;margin:6px 0 10px}
.lead{color:var(--muted);font-size:16.5px;max-width:70ch;margin-bottom:34px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.card .cb{padding:20px 22px 22px}
.card p{color:var(--muted);font-size:14.5px}
.card .more{font-weight:700;font-size:14px;margin-top:12px;display:inline-block}
ul.ticks{list-style:none;margin:12px 0 0}
ul.ticks li{padding:7px 0 7px 26px;position:relative;color:var(--ink);font-size:14.5px}
ul.ticks li::before{content:"";position:absolute;left:2px;top:14px;width:12px;height:7px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
@media(max-width:900px){.grid2,.grid3,.grid4{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.grid2,.grid3,.grid4{grid-template-columns:1fr}
  .hero-in{grid-template-columns:1fr;padding:48px 24px 40px}}

/* feature list w/ numbers */
.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feat .f{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.feat .f .n{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.1em}
.feat .f h3{font-size:16.5px}
.feat .f p{color:var(--muted);font-size:14px}
@media(max-width:900px){.feat{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.feat{grid-template-columns:1fr}}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip-m{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;
  font-size:13.5px;font-weight:600;color:var(--ink)}

/* cert badges */
.certs{display:flex;gap:14px;flex-wrap:wrap}
.cert{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 18px;text-align:center;min-width:150px}
.cert b{display:block;font-size:14.5px;color:var(--accent)}
.cert span{font-size:11.5px;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}

/* ── tables ── */
.tw{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
table.eq{width:100%;border-collapse:collapse;font-size:13.5px;min-width:760px}
table.eq th{background:var(--accent);color:#fff;text-align:left;padding:10px 12px;font-weight:700;white-space:nowrap}
table.eq td{padding:9px 12px;border-top:1px solid var(--line);vertical-align:top}
table.eq tr:nth-child(even) td{background:#f6f7f9}
table.eq td.num{font-family:var(--mono);white-space:nowrap}

/* ── CTA band ── */
.cta-band{background:var(--dark);color:#fff;padding:56px 0}
.cta-band .in{max-width:var(--max);margin:0 auto;padding:0 24px;display:flex;gap:24px;
  align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-band h2{color:#fff;margin-bottom:6px}
.cta-band p{color:#9aa5ae;max-width:60ch}
.cta-band .btn.primary{background:#fff;color:var(--ink)}

/* ── page header (sub pages) ── */
.pagehead{border-bottom:1px solid var(--line);background:
  repeating-linear-gradient(90deg,rgba(24,29,35,.04) 0 1px,transparent 1px 96px),var(--bg)}
.pagehead .in{max-width:var(--max);margin:0 auto;padding:54px 24px 44px}
.pagehead p{color:var(--muted);max-width:75ch;margin-top:10px;font-size:16.5px}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gal img{border-radius:10px;aspect-ratio:4/3;object-fit:cover;background:#fff;
  border:1px solid var(--line);width:100%}
@media(max-width:900px){.gal{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.gal{grid-template-columns:1fr}}

/* timeline */
.tl{border-left:2px solid var(--line);margin-left:8px;padding-left:28px}
.tl .t{position:relative;padding-bottom:30px}
.tl .t::before{content:"";position:absolute;left:-35px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px #d9e6ec}
.tl .y{font-family:var(--mono);color:var(--accent);font-weight:700;letter-spacing:.08em}

/* ── contact ── */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px}
form.rfq{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
form.rfq label{display:block;font-size:13px;font-weight:700;margin:14px 0 6px}
form.rfq input,form.rfq select,form.rfq textarea{width:100%;padding:11px 12px;border:1px solid #c7ccd2;
  border-radius:8px;font:inherit;font-size:14.5px;background:#fbfcfd}
form.rfq input:focus,form.rfq select:focus,form.rfq textarea:focus{outline:2px solid #bcd7e2;border-color:var(--accent)}
.vcard{background:var(--dark);color:#e8ecef;border-radius:var(--radius);padding:26px}
.vcard b{color:#fff}
.vcard a{color:#8fd0e4}
.vcard .row{padding:9px 0;border-bottom:1px solid #262d34;font-size:14.5px}
.vcard .row:last-child{border-bottom:0}
.vcard .k{color:#9aa5ae;display:block;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:2px}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}

/* ── footer ── */
footer{background:var(--dark);color:#9aa5ae;margin-top:0}
.foot-in{max-width:var(--max);margin:0 auto;padding:52px 24px 30px;
  display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px}
footer h4{color:#fff;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
footer a{color:#c3cbd2;display:block;padding:4px 0;font-size:14px}
footer a:hover{color:#fff;text-decoration:none}
footer .fb img{height:44px;margin-bottom:14px}
footer .slogan{font-family:var(--mono);font-size:11.5px;color:#8fd0e4;letter-spacing:.12em;margin-top:12px}
.copy{border-top:1px solid #262d34;margin-top:8px}
.copy .in{max-width:var(--max);margin:0 auto;padding:18px 24px;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px}
@media(max-width:900px){.foot-in{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.foot-in{grid-template-columns:1fr}}

/* ── FAQ ── */
details.faq{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;overflow:hidden}
details.faq summary{cursor:pointer;padding:16px 20px;font-weight:700;font-size:15.5px;list-style:none;
  display:flex;gap:12px;align-items:baseline}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";margin-left:auto;font-size:20px;color:var(--accent);font-weight:400}
details.faq[open] summary::after{content:"–"}
details.faq .qn{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.08em;flex-shrink:0}
details.faq .fa{padding:0 20px 18px 64px;color:var(--muted);font-size:14.5px}