/* Variant B — Dashboard / technical / precision */

body[data-variant="b"]{background:var(--white)}

/* Header */
.site-head.b{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid rgba(14,14,16,.08)}
.site-head.b .b-top{max-width:1280px;margin:0 auto;padding:14px 32px 10px;display:flex;align-items:center;gap:18px;border-bottom:1px solid rgba(14,14,16,.06)}
.site-head.b .b-top img{height:40px}
.site-head.b .b-top span{font-family:var(--f-mono);font-size:11px;color:var(--steel);letter-spacing:.18em;font-weight:700}
.site-head.b .b-nav{max-width:1280px;margin:0 auto;padding:0 32px}
.site-head.b nav{display:grid;grid-template-columns:repeat(8,1fr);gap:0}
.site-head.b nav a{padding:14px 0;display:flex;flex-direction:column;align-items:center;gap:2px;
  border-right:1px solid rgba(14,14,16,.06);position:relative;transition:background .15s}
.site-head.b nav a:first-child{border-left:1px solid rgba(14,14,16,.06)}
.site-head.b nav a:hover{background:var(--bone)}
.site-head.b nav a .tc{font-size:13px;font-weight:800}
.site-head.b nav a .en{font-family:var(--f-mono);font-size:9px;color:var(--steel);letter-spacing:.14em;font-weight:700}
.site-head.b nav a.active{background:var(--ink);color:#fff}
.site-head.b nav a.active .en{color:var(--red)}

/* HOME — Dashboard hero */
.b-hero{background:var(--white);padding:56px 0;border-bottom:1px solid rgba(14,14,16,.08)}
.b-hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:start}
.b-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:24px}
.b-display{font-family:var(--f-disp);font-size:120px;font-weight:900;line-height:.9;letter-spacing:-.03em;text-transform:uppercase}
.b-display em{color:var(--red);font-style:normal}
.b-sub{font-family:var(--f-disp);font-size:40px;font-weight:700;color:var(--steel);margin:6px 0 24px;letter-spacing:-.01em}
.b-sub em{color:var(--ink);font-style:normal}
.b-lead{font-size:15px;color:var(--asphalt);line-height:1.85;max-width:560px;margin-bottom:28px}
.b-cta-row{display:flex;gap:12px;flex-wrap:wrap}
.b-hero-side{background:var(--ink);color:#fff;padding:28px;position:sticky;top:120px}
.b-side-h{font-family:var(--f-mono);font-size:10px;letter-spacing:.22em;color:var(--red);font-weight:700;margin-bottom:14px}
.b-stat{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.15)}
.b-stat .l{font-size:13px;color:rgba(255,255,255,.75)}
.b-stat .v{font-family:var(--f-disp);font-size:28px;font-weight:900;letter-spacing:.02em}
.b-stat .v.a{color:var(--red)}
.b-stat .u{font-size:11px;color:var(--smoke);margin-left:6px;font-family:var(--f-mono);letter-spacing:.1em}
.b-divider{height:24px}
.b-next{padding:16px;background:rgba(255,255,255,.05);margin-top:10px}
.b-next .d{font-family:var(--f-disp);font-size:32px;font-weight:900;color:var(--red);line-height:1}
.b-next .t{font-size:13px;margin:6px 0 12px}
.b-next .bar{height:4px;background:rgba(255,255,255,.12)}
.b-next .bar>div{width:65%;height:100%;background:var(--red)}
.b-next .prog{display:flex;justify-content:space-between;margin-top:6px;font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;color:var(--smoke)}

/* Shared sections (B styling overrides) */
.section-title .k{color:var(--red)}
.course-card{background:var(--white);border:1px solid rgba(14,14,16,.08);display:flex;flex-direction:column}
.course-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.course-card .meta{display:flex;justify-content:space-between;align-items:center}
.course-card .wear{color:var(--steel);font-size:11px}
.course-card p{font-size:13px;color:var(--asphalt);line-height:1.75;flex:1}
.course-card .foot{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid rgba(14,14,16,.08);font-size:11px;color:var(--steel)}

.cats{grid-template-columns:repeat(4,1fr);background:transparent;padding:0;gap:16px}
.cat-card{background:var(--bone);padding:24px;display:flex;flex-direction:column;gap:10px;min-height:200px;transition:all .15s}
.cat-card:hover{background:var(--ink);color:#fff}
.cat-card:hover .no,.cat-card:hover .en{color:var(--smoke)}
.cat-card:hover .more{color:var(--red)}
.cat-card .no{font-family:var(--f-mono);font-size:11px;color:var(--red);letter-spacing:.12em;font-weight:700}
.cat-card .tc{font-size:20px;font-weight:900}
.cat-card .en{font-family:var(--f-mono);font-size:11px;color:var(--steel);letter-spacing:.15em;font-weight:700}
.cat-card .more{margin-top:auto;font-size:12px;color:var(--red);font-weight:700;font-family:var(--f-mono);letter-spacing:.08em}
.cat-card.active{background:var(--ink);color:#fff}
.cat-card.active .en{color:var(--smoke)}

.news-list{display:grid;grid-template-columns:1fr;gap:1px;background:rgba(14,14,16,.08)}
.news-row{display:grid;grid-template-columns:120px 80px 1fr 32px;gap:18px;align-items:center;padding:18px 4px;background:#fff;transition:background .15s}
.news-row:hover{background:var(--bone)}
.news-row .date{font-family:var(--f-mono);color:var(--steel);font-size:12px;letter-spacing:.08em}
.news-row .title{font-weight:700;font-size:15px}
.news-row .arr{color:var(--red);font-weight:900;text-align:right}

.cta-band{background:var(--ink);color:#fff;padding:64px 0;margin-top:64px}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-band .k{color:var(--red);font-size:10px;letter-spacing:.22em;font-weight:700;margin-bottom:12px}
.cta-h{font-family:var(--f-disp);font-size:80px;font-weight:900;line-height:.9;letter-spacing:-.02em;text-transform:uppercase}
.cta-h em{color:var(--red);font-style:normal}
.cta-sub{font-family:var(--f-disp);font-size:24px;color:var(--smoke);margin-top:4px}
.cta-p{margin-top:18px;color:rgba(255,255,255,.7);font-size:14px}
.cta-right{padding:32px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12)}
.cta-right .line-box .l{font-family:var(--f-mono);font-size:10px;letter-spacing:.22em;color:var(--red);font-weight:700}
.cta-right .line-box .n{font-family:var(--f-disp);font-size:36px;font-weight:900;margin:6px 0 20px;letter-spacing:.02em}

/* Page head — Variant B: grid pattern + data labels */
.page-head{background:var(--ink)}
.page-head .kicker{color:var(--red)}

/* About */
.about-top{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start}
.about-chips{display:flex;gap:6px;flex-wrap:wrap;margin:16px 0}
.about-p{font-size:15px;line-height:1.85;max-width:720px;color:var(--asphalt)}
.lic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.lic{background:var(--bone);padding:18px;display:flex;align-items:center;gap:14px;font-size:14px;font-weight:600;border-left:3px solid var(--red)}
.lic .no{font-family:var(--f-mono);color:var(--red);font-weight:800}
.exp-list{list-style:none;padding:0;margin:0;columns:2;column-gap:32px}
.exp-list li{padding:10px 0;border-bottom:1px solid rgba(14,14,16,.1);font-size:14px;display:flex;align-items:center;gap:10px;break-inside:avoid}
.exp-list .dot{width:6px;height:6px;background:var(--red);flex-shrink:0}
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.res{background:var(--bone);padding:16px;display:flex;gap:12px;font-size:14px;font-weight:600}
.res .n{font-family:var(--f-mono);color:var(--red);font-weight:800}

/* Courses */
.cat-tabs{display:flex;gap:8px;margin-top:32px;padding-bottom:16px;border-bottom:1px solid rgba(14,14,16,.08)}
.cat-tabs button{background:var(--bone);border:1px solid transparent;padding:16px 24px;cursor:pointer;text-align:left;transition:all .15s;flex:1}
.cat-tabs .mono{font-size:10px;color:var(--steel);letter-spacing:.15em;font-weight:700}
.cat-tabs .tc{font-size:16px;font-weight:900;margin-top:4px}
.cat-tabs .tc .n{color:var(--red);margin-left:6px;font-family:var(--f-mono);font-size:13px}
.cat-tabs .active{background:var(--ink);color:#fff}
.cat-tabs .active .mono{color:var(--red)}
.course-detail{background:var(--bone);border-left:4px solid var(--red);display:flex;flex-direction:column}
.course-detail .top{padding:22px 24px}
.course-detail .meta{display:flex;gap:10px;margin-bottom:10px}
.course-detail .mid{padding:0 24px 24px;display:grid;grid-template-columns:80px 1fr;gap:10px 16px;font-size:14px;flex:1}
.course-detail .lbl{font-family:var(--f-mono);font-size:11px;color:var(--red);letter-spacing:.1em;font-weight:700;padding-top:2px}
.course-detail .val{color:var(--asphalt);line-height:1.75}
.course-detail .foot{padding:14px 24px;border-top:1px dashed rgba(14,14,16,.12);display:flex;justify-content:space-between;align-items:center;font-family:var(--f-mono);font-size:12px;color:var(--steel)}
.course-example{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px}
.ex-left{background:var(--ink);color:#fff;padding:40px}
.ex-left h3{font-size:28px;color:var(--red);margin-bottom:24px;font-family:var(--f-disp);font-style:italic;text-transform:uppercase;letter-spacing:.02em}
.ex-left dl{display:grid;grid-template-columns:80px 1fr;gap:12px 20px;margin-bottom:28px;font-size:14px}
.ex-left dt{font-family:var(--f-mono);color:var(--red);font-weight:700;letter-spacing:.1em;font-size:11px;padding-top:3px}
.ex-left dd{margin:0;line-height:1.7;color:rgba(255,255,255,.9)}
.ex-right{min-height:400px}

/* Products */
.product-card{background:var(--white);position:relative;display:flex;flex-direction:column;border:1px solid rgba(14,14,16,.08);transition:border-color .15s}
.product-card:hover{border-color:var(--red)}
.product-card .p-tag{position:absolute;top:0;right:0;font-family:var(--f-mono);font-size:10px;font-weight:700;
  letter-spacing:.1em;padding:5px 10px;z-index:2}
.product-card .p-tag.red{background:var(--red);color:#fff}
.product-card .p-tag.signal{background:var(--signal);color:var(--ink)}
.product-card .p-tag.ink{background:var(--ink);color:#fff}
.product-card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.product-card .brand{font-size:10px;color:var(--red);letter-spacing:.12em;font-weight:700}
.product-card h3{font-size:15px;font-weight:800}
.product-card p{font-size:12px;color:var(--asphalt);line-height:1.7;flex:1;margin:0}
.product-card .foot{display:flex;justify-content:space-between;align-items:center;padding-top:10px;border-top:1px solid rgba(14,14,16,.08);font-size:12px}
.product-card .foot .mono{color:var(--steel)}
.product-card .buy{color:var(--red);font-weight:700;font-family:var(--f-mono);letter-spacing:.08em;font-size:11px}

/* Calendar */
.cal-wrap{display:grid;grid-template-columns:1fr 320px;gap:32px;padding:40px 32px}
.cal-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid rgba(14,14,16,.12)}
.cal-head .m{display:flex;align-items:baseline;gap:12px}
.cal-head .big{font-size:56px;color:var(--ink);text-transform:uppercase;font-style:italic}
.cal-head .yr{font-family:var(--f-mono);font-size:22px;color:var(--red);font-weight:700;letter-spacing:.02em}
.cal-head .tc{font-size:14px;color:var(--steel);font-weight:600}
.cal-head .m-switch{display:flex;gap:1px;background:rgba(14,14,16,.1);padding:1px}
.cal-head .m-switch button{background:#fff;border:none;padding:10px 16px;font-size:12px;font-family:var(--f-mono);letter-spacing:.08em;cursor:pointer}
.cal-head .m-switch .on{background:var(--red);color:#fff}
.cal-legend{display:flex;gap:20px;margin-bottom:16px;font-size:11px;font-family:var(--f-mono);letter-spacing:.1em;color:var(--steel)}
.cal-legend div{display:flex;align-items:center;gap:6px}
.cal-legend .sw{width:12px;height:12px;display:inline-block}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:rgba(14,14,16,.12);border:1px solid rgba(14,14,16,.12)}
.cal-grid .h{background:var(--bone);padding:10px;font-size:13px;font-weight:800;text-align:center;display:flex;flex-direction:column;gap:2px}
.cal-grid .h .en{font-family:var(--f-mono);font-size:9px;color:var(--steel);letter-spacing:.14em}
.cal-grid .c{background:#fff;min-height:100px;padding:8px;display:flex;flex-direction:column;gap:4px}
.cal-grid .c.empty{background:var(--paper)}
.cal-grid .dd{font-family:var(--f-mono);font-size:16px;font-weight:700;color:var(--ink)}
.cal-grid .c.has .dd{color:var(--red)}
.cal-grid .ev{padding:4px 6px;font-size:11px;font-weight:700}
.cal-side .sh{font-family:var(--f-mono);font-size:10px;letter-spacing:.22em;color:var(--red);font-weight:700;margin-bottom:12px}
.cal-side .upc{display:grid;grid-template-columns:60px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid rgba(14,14,16,.1)}
.cal-side .upc .d .disp{font-family:var(--f-mono);font-size:22px;color:var(--ink);font-weight:700}
.cal-side .upc .d .mono{font-size:10px;color:var(--red);letter-spacing:.14em;font-weight:700}
.cal-side .upc .tt{font-weight:800;font-size:14px}
.cal-side .upc .tm{font-size:12px;color:var(--steel);margin-top:2px;font-family:var(--f-mono);letter-spacing:.04em}

/* News */
.news-filters{display:flex;gap:4px;margin:32px 0 24px}
.news-filters button{background:var(--bone);border:none;padding:10px 18px;font-family:var(--f-tc);font-size:13px;font-weight:700;cursor:pointer}
.news-filters .on{background:var(--ink);color:#fff}
.news-full{display:grid;grid-template-columns:1fr;gap:1px;background:rgba(14,14,16,.08);border:1px solid rgba(14,14,16,.08)}
.news-full-row{background:#fff;display:grid;grid-template-columns:140px 1fr 40px;gap:24px;padding:24px;align-items:start}
.news-full-row:hover{background:var(--bone)}
.news-full-row .date{font-family:var(--f-mono);color:var(--red);font-size:12px;padding-top:6px;letter-spacing:.08em;font-weight:700}
.news-full-row h3{font-size:18px;margin:8px 0 8px}
.news-full-row p{font-size:14px;color:var(--asphalt);margin:0;line-height:1.75}
.news-full-row .arr{color:var(--red);font-weight:900;font-size:22px;text-align:right;padding-top:6px}

/* Blog */
.blog-featured{background:var(--ink);color:#fff;display:grid;grid-template-columns:1fr 1fr;overflow:hidden;margin-top:32px;border-top:3px solid var(--red)}
.blog-featured .body{padding:40px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.blog-featured h2{font-size:32px;line-height:1.3;color:#fff}
.blog-featured p{font-size:15px;color:rgba(255,255,255,.7);line-height:1.8;margin:0}
.blog-featured .meta{font-family:var(--f-mono);color:var(--red);font-size:11px;letter-spacing:.12em;font-weight:700}
.blog-card{background:#fff;border:1px solid rgba(14,14,16,.08);display:flex;flex-direction:column;transition:border-color .15s}
.blog-card:hover{border-color:var(--red)}
.blog-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.blog-card .meta{display:flex;justify-content:space-between;align-items:center}
.blog-card .meta .mono{font-size:10px;color:var(--steel);letter-spacing:.1em;font-weight:700}
.blog-card h3{font-size:17px;line-height:1.4}
.blog-card p{font-size:13px;color:var(--asphalt);flex:1;line-height:1.75}
.blog-card .foot{font-family:var(--f-mono);font-size:10px;color:var(--red);font-weight:700;letter-spacing:.14em;padding-top:12px;border-top:1px solid rgba(14,14,16,.08)}

/* Contact */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding-top:48px}
.contact-left h2{font-family:var(--f-disp);font-size:56px;line-height:1;margin-bottom:16px;text-transform:uppercase;font-style:italic}
.contact-left .lead{font-size:15px;color:var(--asphalt);max-width:420px;line-height:1.8}
.c-line{margin:32px 0;padding:24px;background:var(--ink);color:#fff}
.c-line .lbl{font-family:var(--f-mono);font-size:10px;letter-spacing:.22em;color:var(--red);font-weight:700}
.c-line .val{font-family:var(--f-mono);font-size:36px;font-weight:700;margin-top:10px;letter-spacing:.06em}
.c-meta{display:flex;flex-direction:column;gap:10px}
.c-meta>div{padding:16px;background:var(--bone);border-left:3px solid var(--red)}
.c-meta .lbl{font-family:var(--f-mono);font-size:10px;letter-spacing:.18em;color:var(--red);font-weight:700;margin-bottom:4px}
.contact-form{background:var(--bone);padding:36px;border:1px solid rgba(14,14,16,.08);display:flex;flex-direction:column;gap:18px}
.contact-form label{display:flex;flex-direction:column;gap:6px;font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;color:var(--steel);font-weight:700}
.contact-form input,.contact-form select,.contact-form textarea{border:1px solid rgba(14,14,16,.15);padding:12px 14px;font-family:var(--f-tc);font-size:14px;color:var(--ink);background:#fff}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:2px solid var(--red);outline-offset:-2px}
.contact-form button{margin-top:8px;justify-content:center}

@media(max-width:900px){
  .site-head.b nav{grid-template-columns:repeat(4,1fr)}
  .b-hero-grid{grid-template-columns:1fr}
  .b-display{font-size:72px}
  .b-sub{font-size:28px}
  .about-top,.contact-wrap,.cal-wrap,.blog-featured,.course-example{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .cta-h{font-size:52px}
  .exp-list{columns:1}
  .res-grid{grid-template-columns:1fr}
  .news-row{grid-template-columns:90px 60px 1fr 24px;gap:10px}
  .news-full-row{grid-template-columns:100px 1fr 24px;gap:14px;padding:18px}
  .lic-grid,.cats{grid-template-columns:1fr 1fr}
  .cat-tabs{flex-direction:column}
  .b-hero-side{position:static}
}