:root{--paper:#F6F9FC;--blue:#0B4EA2;--ink:#0A2540;--cyan:#0E9BD8;--amber:#D97A06;--line:#C9D8E8;--mut:#47617A;--card:#FFFFFF}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Inter,system-ui,-apple-system,'Segoe UI',sans-serif;background:var(--paper);color:var(--ink);line-height:1.65;font-size:16.5px}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
header.site{background:var(--ink);color:#fff;position:sticky;top:0;z-index:50}
header.site .wrap{display:flex;align-items:center;gap:26px;min-height:62px;max-width:1280px}
.logo{font-family:Archivo,sans-serif;font-weight:800;font-size:20px;color:#fff;letter-spacing:.2px;white-space:nowrap}
.logo span{color:var(--cyan)}
nav.main{display:flex;gap:16px;font-size:13.5px;flex:1;flex-wrap:nowrap}
nav.main a{color:#D7E5F2;white-space:nowrap}nav.main a:hover{color:#fff;text-decoration:none}
.nav-toggle{display:none}
.nav-burger{display:none}
.cta-btn{background:var(--amber);color:#fff!important;padding:8px 16px;border-radius:6px;font-weight:600}
.hero{background:linear-gradient(180deg,#FFFFFF, #EDF4FB);border-bottom:2px solid var(--blue);padding:44px 0 36px}
.crumbs{font-size:13px;color:var(--mut);margin-bottom:14px}
.crumbs a{color:var(--mut)}
h1{font-family:Archivo,sans-serif;font-size:34px;line-height:1.2;font-weight:800;letter-spacing:-.3px;max-width:820px}
.hero-sub{color:var(--mut);margin-top:12px;max-width:760px;font-size:17px}
.bp-strip{display:flex;flex-wrap:wrap;gap:0;margin-top:24px;border:1.5px solid var(--blue);background:repeating-linear-gradient(0deg,#fff,#fff 23px,#EAF2FA 24px),#fff;border-radius:8px;overflow:hidden}
.bp-cell{flex:1 1 180px;padding:12px 16px;border-right:1px dashed var(--line)}
.bp-cell:last-child{border-right:none}
.bp-k{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:1.4px;color:var(--cyan);text-transform:uppercase}
.bp-v{font-family:'IBM Plex Mono',monospace;font-size:15.5px;font-weight:600;color:var(--ink);margin-top:2px}
main{padding:34px 0 10px}
main .wrap{max-width:1120px}
article{max-width:860px}
article.wide{max-width:1120px}
h2{font-family:Archivo,sans-serif;font-size:24px;margin:30px 0 12px;font-weight:700}
h3{font-family:Archivo,sans-serif;font-size:19px;margin:24px 0 8px;font-weight:700}
p{margin:0 0 14px}
ul,ol{margin:0 0 14px 22px}li{margin-bottom:6px}
table{border-collapse:collapse;width:100%;margin:14px 0 20px;font-size:15px;background:#fff}
th,td{border:1px solid var(--line);padding:8px 11px;text-align:left;vertical-align:top}
th{background:#EAF2FA;font-family:'IBM Plex Mono',monospace;font-size:12.5px;letter-spacing:.6px;text-transform:uppercase;color:var(--ink)}
.spec-table td:first-child{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--mut);width:32%}
figure{margin:18px 0;background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden}
figure img{width:100%;display:block;max-height:430px;object-fit:cover}
figcaption{font-size:13.5px;color:var(--mut);padding:9px 13px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin:18px 0 24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:4px;overflow:hidden;display:flex;flex-direction:column}
.card:hover{border-color:var(--blue)}
.card img{width:100%;height:150px;object-fit:cover;display:block}
.card .noimg{height:150px;background:repeating-linear-gradient(0deg,#0B4EA2,#0B4EA2 23px,#0A458F 24px);display:flex;align-items:center;justify-content:center;color:#BFE0F7;font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:1.5px;padding:10px;text-align:center}
.card-b{padding:13px 15px}
.card-t{font-family:Archivo,sans-serif;font-weight:700;font-size:16px;line-height:1.3;color:var(--ink)}
.card-s{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--mut);margin-top:5px;line-height:1.5}
.form-box{background:#fff;border:1.5px solid var(--blue);border-radius:10px;padding:24px;margin:30px 0;max-width:720px}
.form-box h2{margin-top:0}
.form-box label{display:block;font-size:14px;font-weight:600;margin:12px 0 5px}
.form-box input,.form-box select,.form-box textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:6px;font:inherit;font-size:15px;background:#FBFDFE}
.form-box button{background:var(--amber);color:#fff;border:none;padding:12px 26px;border-radius:6px;font-weight:700;font-size:16px;cursor:pointer;margin-top:16px}
.form-note{font-size:13px;color:var(--mut);margin-top:10px}
.fact-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:20px 0}
.fact{background:#fff;border:1px solid var(--line);border-left:4px solid var(--cyan);border-radius:6px;padding:14px 16px}
.fact b{font-family:Archivo,sans-serif;font-size:20px;display:block}
footer.site{background:var(--ink);color:#B9CFE4;margin-top:50px;padding:38px 0 26px;font-size:14.5px}
footer.site .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px}
footer.site h4{color:#fff;font-family:Archivo,sans-serif;margin-bottom:10px;font-size:15px}
footer.site a{color:#B9CFE4;display:block;margin-bottom:6px}
footer.site .fine{border-top:1px solid #1E3B58;margin-top:24px;padding-top:16px;font-size:13px;color:#7E97AC}
.blog-list .card-t{font-size:17px}
.date{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--cyan)}
@media(max-width:760px){h1{font-size:26px}.bp-cell{flex:1 1 140px}header.site .wrap{gap:10px;padding:0 14px}.logo{font-size:15.5px}.cta-btn{padding:7px 11px;font-size:13.5px}table{display:block;overflow-x:auto}}
.langsw{position:relative;flex:none;margin-left:auto}
.langsw summary{cursor:pointer;list-style:none;font-size:13px;font-weight:600;border:1.5px solid #0E9BD8;border-radius:6px;padding:6px 12px;background:transparent;color:#D7E5F2;white-space:nowrap}
.langsw summary::-webkit-details-marker{display:none}
.langsw .langmenu{position:absolute;right:0;top:calc(100% + 6px);background:#0A2540;border:1px solid #1E3B58;border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.35);padding:6px;z-index:80;min-width:150px;display:flex;flex-direction:column}
.langsw .langmenu a{padding:7px 10px;font-size:14px;color:#D7E5F2;text-decoration:none;border-radius:4px;white-space:nowrap;display:block}
.langsw .langmenu a:hover{background:#12314e;color:#fff}
.langsw .langmenu a.cur{font-weight:700;color:#fff}
@media(max-width:760px){header.site .wrap{gap:8px;padding:6px 10px;flex-wrap:wrap;height:auto;min-height:62px}.logo{font-size:12.5px;letter-spacing:0}.cta-btn{padding:6px 9px;font-size:12.5px;white-space:nowrap}.langsw summary{padding:5px 8px;font-size:12px}}
@media(max-width:1240px) and (min-width:769px){header.site .wrap{gap:16px}nav.main{gap:11px;font-size:12.5px}.logo{font-size:18px}.cta-btn{padding:8px 12px}}
/* Mobile header hamburger (<=768px only; desktop layout untouched).
   Pure CSS checkbox pattern (same as artel site): collapsed row shows
   logo + burger + CTA + language switcher (switcher stays rightmost);
   tapping the burger expands the main nav on its own row below. */
@media(max-width:768px){
header.site .wrap{flex-wrap:wrap;height:auto;min-height:62px}
.nav-burger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:40px;padding:9px 8px;cursor:pointer;flex:none}
.nav-burger span{display:block;height:3px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle:checked~.nav-burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle:checked~.nav-burger span:nth-child(2){opacity:0}
.nav-toggle:checked~.nav-burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
nav.main{display:none;order:5;flex:0 0 100%;flex-direction:column;gap:0}
nav.main a{padding:10px 2px;border-top:1px solid #1E3B58;font-size:15px}
.nav-toggle:checked~nav.main{display:flex}
}