/* ============ COSENG factory site — grey premium industrial ============ */
:root{
  --bg:#E8E9EB; --panel:#F2F3F6; --card:#FFFFFF; --ink:#17191C; --slate:#4A5159; --soft:#6B7280;
  --line:#D8DADE; --line2:#E4E6E9; --dark:#17191C; --dark2:#202327;
  --red:#E00010; --red-dk:#B3000D; --red-soft:#FBE7E8;
  --shadow:0 24px 56px -28px rgba(23,25,28,.25); --shadow-sm:0 8px 22px -14px rgba(23,25,28,.28);
  --r:4px; --r-lg:8px; --max:1240px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{background:var(--bg);color:var(--ink);font-family:'Archivo',system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.mono{font-family:'JetBrains Mono',monospace}
h1,h2,h3{line-height:1.04;letter-spacing:-.015em}
.muted{color:var(--slate)}
.center{text-align:center}

/* eyebrow */
.eb{font-family:'JetBrains Mono';font-size:12px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--slate);display:flex;align-items:center;gap:12px;margin-bottom:18px}
.eb::before{content:"";width:26px;height:2px;background:var(--red)}
.eb.c{justify-content:center}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:'Archivo';font-weight:700;font-size:13.5px;letter-spacing:.08em;text-transform:uppercase;padding:15px 26px;border-radius:var(--r);text-decoration:none;border:none;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s}
.btn:active{transform:translateY(1px)}
.btn-red{background:var(--red);color:#fff;box-shadow:0 12px 26px -12px rgba(224,0,16,.55)}
.btn-red:hover{background:var(--red-dk)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-line{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}
.btn-ghost{background:var(--card);color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink)}

/* a11y */
.skip{position:absolute;left:-999px;top:0;z-index:300;background:var(--ink);color:#fff;padding:12px 18px;font-weight:700;text-decoration:none}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--red);outline-offset:2px}

/* reveal */
.rv{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .7s cubic-bezier(.16,.84,.32,1);transition-delay:var(--d,0s)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1!important;transform:none!important;transition:none!important}html{scroll-behavior:auto}}

/* ---- top bar + nav ---- */
.util{background:var(--dark);color:#B9BEC6}
.util .wrap{display:flex;justify-content:space-between;align-items:center;min-height:40px;font-family:'JetBrains Mono';font-size:11.5px;letter-spacing:.06em;gap:12px;flex-wrap:wrap}
.util b{color:#fff;font-weight:600}
.util a{color:#fff;text-decoration:none}
.util a:hover{text-decoration:underline}
header.nav{position:sticky;top:0;z-index:60;background:rgba(232,233,235,.88);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:18px}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none}
.brand .mk{width:38px;height:38px;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:900;font-size:20px;border-radius:var(--r)}
.brand .bt{font-weight:900;font-size:21px;letter-spacing:.02em}
.brand .bt span{display:block;font-family:'JetBrains Mono';font-weight:500;font-size:9.5px;letter-spacing:.3em;color:var(--slate);text-transform:uppercase;margin-top:1px}
.nlinks{display:flex;gap:30px;font-size:13.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--slate)}
.nlinks a{text-decoration:none;color:var(--slate);padding:6px 0;border-bottom:2px solid transparent}
.nlinks a:hover,.nlinks a.on{color:var(--ink);border-bottom-color:var(--red)}
.nav .btn{padding:12px 20px;font-size:12.5px}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:var(--r);width:44px;height:44px;cursor:pointer;place-items:center}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* ---- hero (home) ---- */
.hero{position:relative;border-bottom:1px solid var(--line);overflow:hidden;background:
  linear-gradient(180deg,rgba(255,255,255,.5),rgba(232,233,235,0) 55%),
  repeating-linear-gradient(0deg,transparent 0 47px,rgba(23,25,28,.045) 47px 48px),
  repeating-linear-gradient(90deg,transparent 0 47px,rgba(23,25,28,.045) 47px 48px),
  var(--bg)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;padding:78px 28px 84px}
.hero h1{font-size:64px;font-weight:900;text-transform:uppercase;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--red)}
.hero .lead{margin-top:22px;font-size:18px;color:var(--slate);max-width:480px;line-height:1.65}
.hero .acts{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.statband{display:flex;gap:0;margin-top:46px;border-top:1px solid var(--line)}
.stat{flex:1;padding:18px 18px 0 0}
.stat .n{font-size:34px;font-weight:900;letter-spacing:-.02em}
.stat .n em{font-style:normal;color:var(--red)}
.stat .l{font-family:'JetBrains Mono';font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--slate);margin-top:3px}
.hero-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:30px;position:relative}
.hero-card img{width:100%;max-height:430px;object-fit:contain}
.hero-card .tag{position:absolute;top:18px;left:18px;font-family:'JetBrains Mono';font-size:11px;font-weight:600;letter-spacing:.14em;background:var(--ink);color:#fff;padding:6px 12px;border-radius:var(--r)}
.hero-card .spec-strip{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.chip{font-family:'JetBrains Mono';font-size:11px;font-weight:600;letter-spacing:.05em;border:1px solid var(--line);background:var(--panel);padding:6px 11px;border-radius:var(--r);color:var(--ink)}
.chip b{color:var(--red-dk)}

/* ---- sections ---- */
section{padding:84px 0}
.shead{max-width:680px;margin-bottom:44px}
.shead.c{margin-left:auto;margin-right:auto;text-align:center}
.shead h2{font-size:40px;font-weight:900;text-transform:uppercase}
.shead p{margin-top:14px;font-size:16.5px;color:var(--slate)}
.alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---- category cards ---- */
.catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;text-decoration:none;display:flex;flex-direction:column;min-height:200px;transition:transform .22s,box-shadow .22s,border-color .22s;position:relative;overflow:hidden}
.cat:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bcc0c6}
.cat .num{font-family:'JetBrains Mono';font-size:11px;color:var(--soft);letter-spacing:.1em}
.cat h3{font-size:21px;font-weight:800;text-transform:uppercase;margin-top:10px;letter-spacing:-.01em}
.cat p{font-size:13.5px;color:var(--slate);margin-top:8px;flex:1}
.cat .go{font-family:'JetBrains Mono';font-size:12px;font-weight:600;color:var(--red-dk);letter-spacing:.08em;margin-top:14px}
.cat::after{content:"";position:absolute;left:0;bottom:0;width:0;height:3px;background:var(--red);transition:width .3s}
.cat:hover::after{width:100%}

/* ---- product grid + cards ---- */
.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:30px}
.fbtn{font-family:'JetBrains Mono';font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:10px 16px;border:1px solid var(--line);background:var(--card);border-radius:var(--r);cursor:pointer;color:var(--slate);transition:all .15s}
.fbtn:hover{border-color:var(--ink);color:var(--ink)}
.fbtn.on{background:var(--ink);border-color:var(--ink);color:#fff}
.fbtn .ct{color:var(--red);margin-left:6px}
.fbtn.on .ct{color:#ff8a90}
.search{margin-left:auto;display:flex;align-items:center;gap:9px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;min-width:230px}
.search input{border:none;outline:none;background:none;font-family:'JetBrains Mono';font-size:13px;width:100%;color:var(--ink)}
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pc{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;text-decoration:none;display:flex;flex-direction:column;transition:transform .22s,box-shadow .22s,border-color .22s}
.pc:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bcc0c6}
.pc .ph{background:#fff;padding:22px;display:grid;place-items:center;border-bottom:1px solid var(--line2);position:relative}
.pc .ph img{height:218px;object-fit:contain;transition:transform .35s}
.pc:hover .ph img{transform:scale(1.045)}
.pc .cat-tag{position:absolute;top:13px;left:13px;font-family:'JetBrains Mono';font-size:9.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--slate);background:var(--panel);border:1px solid var(--line);padding:4px 9px;border-radius:var(--r)}
.pc .bd{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.pc h3{font-size:19px;font-weight:800;letter-spacing:.01em}
.pc .tg{font-size:13px;color:var(--slate);margin-top:5px;flex:1}
.pc .row{display:flex;justify-content:space-between;align-items:center;margin-top:14px;padding-top:13px;border-top:1px solid var(--line2)}
.pc .vw{font-family:'JetBrains Mono';font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--red-dk)}
.pc .qt{font-family:'JetBrains Mono';font-size:11.5px;color:var(--soft)}

/* ---- product detail ---- */
.crumb{background:var(--panel);border-bottom:1px solid var(--line)}
.crumb .wrap{display:flex;align-items:center;gap:10px;height:48px;font-family:'JetBrains Mono';font-size:12px;color:var(--soft)}
.crumb a{text-decoration:none;color:var(--slate)}
.crumb a:hover{color:var(--red-dk)}
.crumb .cur{color:var(--ink);font-weight:600}
.phero{border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.55),rgba(232,233,235,0) 60%)}
.phero .wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:center;padding:56px 28px 64px}
.pimg{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-sm)}
.pimg img{width:100%;max-height:480px;object-fit:contain}
.phero h1{font-size:54px;font-weight:900;letter-spacing:-.01em}
.phero .tg{font-size:17px;color:var(--slate);margin-top:10px}
.keyspecs{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px}
.phero .acts{display:flex;gap:13px;margin-top:30px;flex-wrap:wrap}

/* spec table */
.stable{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.srow{display:grid;grid-template-columns:42% 58%;border-bottom:1px solid var(--line2)}
.srow:last-child{border-bottom:none}
.srow:nth-child(odd){background:var(--panel)}
.sk{padding:14px 22px;font-family:'JetBrains Mono';font-size:12.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--slate)}
.sv{padding:14px 22px;font-size:15px;font-weight:600}
.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}

/* features */
.fgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.feat .fi{font-family:'JetBrains Mono';font-size:11px;color:var(--red-dk);font-weight:600;letter-spacing:.1em}
.feat h4{font-size:16px;font-weight:700;margin-top:8px}
.feat p{font-size:13.5px;color:var(--slate);margin-top:6px}

/* accessories */
.acclist{display:flex;flex-wrap:wrap;gap:9px}
.acc{font-family:'JetBrains Mono';font-size:12.5px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:9px 14px;color:var(--ink)}

/* resources (manual + video slots) */
.resgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.res{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;display:flex;gap:18px;align-items:flex-start}
.res .ic{width:48px;height:48px;border-radius:var(--r);background:var(--red-soft);color:var(--red-dk);display:grid;place-items:center;font-size:21px;flex-shrink:0}
.res h4{font-size:17px;font-weight:800}
.res p{font-size:13.5px;color:var(--slate);margin-top:5px}
.res .pend{display:inline-flex;font-family:'JetBrains Mono';font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--soft);background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:5px 10px;margin-top:11px}
.res a.act{display:inline-flex;font-family:'JetBrains Mono';font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--red-dk);margin-top:11px;text-decoration:none}
.res a.act:hover{text-decoration:underline}
.vidwrap{position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);margin-top:14px}
.vidwrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* related */
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

/* ---- flagship spotlight ---- */
.spot{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;display:grid;grid-template-columns:1fr 1fr;align-items:center}
.spot .sp-img{background:#fff;padding:34px;display:grid;place-items:center;border-right:1px solid var(--line2)}
.spot .sp-img img{max-height:420px;object-fit:contain}
.spot .sp-bd{padding:44px 46px}
.spot h3{font-size:30px;font-weight:900;text-transform:uppercase;letter-spacing:-.01em}
.spot .sp-sub{font-family:'JetBrains Mono';font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--red-dk);margin-bottom:14px}
.spot p{color:var(--slate);font-size:15.5px;margin-top:14px}
.spot .keyspecs{margin-top:20px}
.spot .acts{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}

/* ---- audience selector ---- */
.aud{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.aud a{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;text-decoration:none;transition:transform .22s,box-shadow .22s;position:relative;overflow:hidden;display:block}
.aud a:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.aud .ai{font-size:26px;margin-bottom:14px}
.aud h3{font-size:20px;font-weight:800;text-transform:uppercase}
.aud p{font-size:14px;color:var(--slate);margin-top:8px}
.aud .go{font-family:'JetBrains Mono';font-size:12px;font-weight:600;color:var(--red-dk);letter-spacing:.08em;margin-top:16px;display:block}
.aud a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:3px;background:var(--red);transition:width .3s}
.aud a:hover::after{width:100%}

/* ---- FAQ ---- */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.fq{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.fq summary{list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;gap:14px;font-weight:700;font-size:16px}
.fq summary::-webkit-details-marker{display:none}
.fq summary .qn{font-family:'JetBrains Mono';font-size:12px;color:var(--red-dk);font-weight:600;flex-shrink:0}
.fq summary .ch{margin-left:auto;color:var(--soft);transition:transform .25s;font-weight:400}
.fq[open] summary .ch{transform:rotate(45deg)}
.fq[open] summary{border-bottom:1px solid var(--line2)}
.fq .fa{padding:18px 24px 22px 60px;font-size:14.5px;color:var(--slate)}

/* dark CTA band */
.cta{background:var(--dark);color:#fff;border-radius:var(--r-lg);padding:54px;display:grid;grid-template-columns:1.25fr .75fr;gap:30px;align-items:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,transparent 0 60px,rgba(255,255,255,.025) 60px 61px)}
.cta h2{font-size:32px;font-weight:900;text-transform:uppercase;position:relative}
.cta p{color:#B9BEC6;margin-top:12px;max-width:460px;position:relative}
.cta .acts{display:flex;flex-direction:column;gap:12px;position:relative}
.cta .acts .btn{justify-content:center}
.btn-wht{background:#fff;color:var(--ink)}
.btn-wht:hover{background:var(--panel)}
.btn-out{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.3)}
.btn-out:hover{border-color:#fff}

/* contact / form */
.cgrid{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:start}
.cinfo .ci{display:flex;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}
.cinfo .ci:last-child{border-bottom:none}
.cinfo .ic{width:44px;height:44px;border-radius:var(--r);background:var(--card);border:1px solid var(--line);display:grid;place-items:center;font-size:18px;flex-shrink:0}
.cinfo h4{font-family:'JetBrains Mono';font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--slate)}
.cinfo .v{font-size:16px;font-weight:700;margin-top:3px}
.cinfo .v a{text-decoration:none}
.cinfo .v a:hover{color:var(--red-dk)}
.ph-tag{font-family:'JetBrains Mono';font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--soft)}
.cform{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow-sm)}
.fg{margin-bottom:16px}
.fg label{display:block;font-family:'JetBrains Mono';font-size:11.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);margin-bottom:8px}
.fg input,.fg select,.fg textarea{width:100%;font-family:'Archivo';font-size:15px;padding:13px 14px;border:1.5px solid var(--line);border-radius:var(--r);background:var(--panel);color:var(--ink);transition:border .15s,box-shadow .15s}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px rgba(224,0,16,.08);background:#fff}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fmsg{display:none;padding:14px 16px;border-radius:var(--r);font-size:14px;margin-bottom:16px}
.fmsg.ok{display:block;background:#E7F4EC;border:1px solid #BFE3CC;color:#0A6B36}

/* footer */
footer{background:var(--dark);color:#9AA0A9;padding:60px 0 30px;margin-top:0}
.fgrid-f{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px;padding-bottom:38px;border-bottom:1px solid #2A2E33}
.fb .wm{font-weight:900;font-size:24px;color:#fff;letter-spacing:.02em}
.fb .wm i{font-style:normal;color:var(--red)}
.fb .tg{font-family:'JetBrains Mono';font-size:10px;letter-spacing:.28em;text-transform:uppercase;color:#6B7280;margin-top:2px}
.fb p{font-size:13.5px;margin-top:16px;max-width:300px}
.fb .certs{display:flex;gap:8px;margin-top:18px;flex-wrap:wrap}
.fb .certs span{font-family:'JetBrains Mono';font-size:10.5px;font-weight:600;letter-spacing:.06em;background:#222529;border:1px solid #32363B;color:#C6CAD1;padding:5px 11px;border-radius:var(--r)}
footer h5{font-family:'JetBrains Mono';color:#fff;font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;margin-bottom:16px}
footer ul{list-style:none}
footer li{margin-bottom:10px}
footer a{color:#9AA0A9;text-decoration:none;font-size:13.5px}
footer a:hover{color:#fff}
.fbot{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-family:'JetBrains Mono';font-size:11px;color:#6B7280;gap:14px;flex-wrap:wrap}

/* responsive */
@media (max-width:1020px){
  .hero .wrap,.phero .wrap{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:48px}
  .catgrid{grid-template-columns:1fr 1fr}
  .pgrid,.rel,.fgrid{grid-template-columns:1fr 1fr}
  .two-col,.cgrid,.resgrid{grid-template-columns:1fr}
  .cta{grid-template-columns:1fr;padding:38px}
  .fgrid-f{grid-template-columns:1fr 1fr}
  .fb{grid-column:1/-1}
  .spot{grid-template-columns:1fr}
  .spot .sp-img{border-right:none;border-bottom:1px solid var(--line2)}
  .aud{grid-template-columns:1fr}
}
@media (max-width:720px){
  .nlinks{display:none}
  .nlinks.open{display:flex;position:absolute;top:76px;left:0;right:0;background:var(--bg);flex-direction:column;gap:0;padding:8px 28px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nlinks.open a{padding:14px 0;border-bottom:1px solid var(--line2)}
  .burger{display:grid}
  .nav .nav-cta{display:none}
  .hero h1{font-size:38px}
  .phero h1{font-size:38px}
  .shead h2{font-size:30px}
  section{padding:60px 0}
  .pgrid,.rel,.fgrid,.catgrid{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .statband{flex-wrap:wrap}
  .stat{flex:1 1 45%}
  .search{margin-left:0;width:100%}
}