:root{--bg:#0b1020;--bg2:#111833;--card:#151d3b;--line:#243058;--text:#e8ecf8;--muted:#9aa6c8;--accent:#3ee6b0;--accent2:#6aa8ff;--pi:#ff5c8a;--net:#6aa8ff;--it:#ffb84d;--gad:#b18cff;--radius:16px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 "Inter","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
code,.mono{font-family:"JetBrains Mono","Fira Code",Consolas,Menlo,monospace}
/* header */
header.site{position:sticky;top:0;z-index:10;background:rgba(11,16,32,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;letter-spacing:-.3px}
.logo svg{flex:none}.logo b{color:var(--accent)}
nav.main{display:flex;gap:6px;align-items:center}
nav.main a{padding:8px 14px;border-radius:999px;color:var(--muted);font-weight:600;font-size:15px}
nav.main a:hover{color:var(--text);background:var(--bg2)}
nav.main a.yt{background:#ff3d3d;color:#fff;display:flex;gap:7px;align-items:center}
/* hero */
.hero{position:relative;overflow:hidden;padding:72px 0 64px;border-bottom:1px solid var(--line);
 background:radial-gradient(600px 300px at 85% 10%,rgba(62,230,176,.18),transparent 70%),radial-gradient(500px 300px at 10% 90%,rgba(106,168,255,.16),transparent 70%)}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:40px 40px;opacity:.25;mask-image:linear-gradient(to bottom,#000,transparent)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font-size:13px;font-weight:700;color:var(--accent);background:rgba(62,230,176,.1);border:1px solid rgba(62,230,176,.3);padding:5px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.8px}
.hero h1{font-size:52px;line-height:1.08;margin:18px 0 16px;letter-spacing:-1.5px}
.hero h1 span{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:19px;color:var(--muted);max-width:560px;margin:0 0 26px}
.signup{display:flex;gap:10px;max-width:520px;background:var(--bg2);border:1px solid var(--line);padding:6px;border-radius:14px}
.signup input{flex:1;min-width:0;background:transparent;border:0;color:var(--text);font-size:16px;padding:10px 12px;outline:none}
.btn{border:0;cursor:pointer;font-weight:700;font-size:15px;padding:12px 20px;border-radius:10px;background:var(--accent);color:#06221a;white-space:nowrap;display:inline-flex;align-items:center;gap:8px}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.small{font-size:13px;color:var(--muted);margin-top:10px}
.terminal{background:#070b17;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 30px 60px rgba(0,0,0,.45);overflow:hidden}
.terminal .bar{display:flex;gap:7px;padding:12px 14px;background:#0e1430;border-bottom:1px solid var(--line)}
.terminal .bar i{width:11px;height:11px;border-radius:50%;background:#ff5f57}.terminal .bar i:nth-child(2){background:#febc2e}.terminal .bar i:nth-child(3){background:#28c840}
.terminal .bar span{margin-left:auto;font-size:12px;color:var(--muted)}
.terminal pre{margin:0;padding:18px 20px;font-size:14px;line-height:1.75;color:#c9d4f2;white-space:pre-wrap}
.terminal .p{color:var(--accent)}.terminal .c{color:#5e6a92}.terminal .ok{color:#28c840}
.stats{display:flex;gap:28px;margin-top:28px;color:var(--muted);font-size:14px}.stats b{display:block;color:var(--text);font-size:24px}
/* sections */
section{padding:64px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:24px;flex-wrap:wrap}
.sec-head h2{font-size:32px;margin:0;letter-spacing:-.6px}.sec-head p{margin:4px 0 0;color:var(--muted)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.chip{border:1px solid var(--line);background:var(--bg2);color:var(--muted);padding:8px 16px;border-radius:999px;font-weight:600;font-size:14px;cursor:pointer;display:inline-flex;gap:8px;align-items:center}
.chip .n{font-size:12px;background:var(--line);color:var(--text);padding:1px 8px;border-radius:999px}
.chip.on{background:var(--text);color:var(--bg);border-color:var(--text)}.chip.on .n{background:var(--bg);color:var(--text)}
.dot{width:8px;height:8px;border-radius:50%}
/* start here */
.start{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;background:linear-gradient(135deg,rgba(62,230,176,.12),rgba(106,168,255,.08));border:1px solid rgba(62,230,176,.35);border-radius:var(--radius);padding:22px 26px;margin-bottom:28px}
.start .ic{width:54px;height:54px;border-radius:14px;background:var(--accent);display:grid;place-items:center;color:#06221a}
.start h3{margin:2px 0 4px;font-size:20px}.start p{margin:0;color:var(--muted);font-size:15px}
.start .lab{font-size:12px;font-weight:800;letter-spacing:1px;color:var(--accent);text-transform:uppercase}
/* cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-color:#3a4a85}
.thumb{height:128px;position:relative;display:grid;place-items:center;overflow:hidden}
.thumb svg{width:56px;height:56px;opacity:.95;position:relative}
.thumb:after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);background-size:14px 14px}
.t-pi{background:linear-gradient(135deg,#4a1330,#a3264f)}.t-net{background:linear-gradient(135deg,#132a5a,#2c62c4)}.t-it{background:linear-gradient(135deg,#4a2e0b,#b5741a)}.t-gad{background:linear-gradient(135deg,#2a1656,#6a3fc8)}
.card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.tag{font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}
.tag.pi{background:rgba(255,92,138,.15);color:var(--pi)}.tag.net{background:rgba(106,168,255,.15);color:var(--net)}.tag.it{background:rgba(255,184,77,.15);color:var(--it)}.tag.gad{background:rgba(177,140,255,.15);color:var(--gad)}
.card h3{font-size:17px;line-height:1.35;margin:0;flex:1}
.card .foot{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted)}
.badge{display:inline-flex;gap:6px;align-items:center;font-size:12px;font-weight:700;color:var(--accent);background:rgba(62,230,176,.1);padding:4px 10px;border-radius:999px}
/* cheat sheets */
.sheets{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sheet{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;gap:18px}
.pdf{flex:none;width:96px;height:124px;border-radius:8px;background:#f5f7fb;color:#1a2240;position:relative;padding:12px 10px;box-shadow:0 10px 24px rgba(0,0,0,.35);font-size:7px;line-height:1.3;overflow:hidden}
.pdf:before{content:"";position:absolute;right:0;top:0;border-width:0 18px 18px 0;border-style:solid;border-color:var(--bg2) var(--bg2) #d3d9e8 #d3d9e8}
.pdf .h{height:10px;border-radius:2px;margin-bottom:7px}.pdf .l{height:4px;background:#cfd6e6;border-radius:2px;margin:4px 0}.pdf .l.s{width:60%}.pdf .cd{background:#1a2240;height:14px;border-radius:2px;margin:6px 0}
.pdf .ft{position:absolute;bottom:8px;left:10px;font-weight:800;font-size:8px;color:#e33}
.sheet h3{margin:0 0 6px;font-size:17px}.sheet p{margin:0 0 12px;color:var(--muted);font-size:14px}
.sheet .info{font-size:12px;color:var(--muted);margin-bottom:12px}
.sheet .btn{padding:9px 14px;font-size:14px}
/* about strip */
.about{display:grid;grid-template-columns:auto 1fr auto;gap:26px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.avatar{width:84px;height:84px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;font-weight:800;font-size:28px;color:#06221a}
.about h3{margin:0 0 6px;font-size:22px}.about p{margin:0;color:var(--muted)}
/* footer */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
/* post */
.crumbs{font-size:14px;color:var(--muted);padding:26px 0 0}.crumbs a{color:var(--accent2)}
.post-hero{padding:18px 0 34px;border-bottom:1px solid var(--line)}
.post-hero h1{font-size:42px;line-height:1.15;letter-spacing:-1px;margin:14px 0 14px;max-width:880px}
.post-hero .meta{font-size:14px}
.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:40px 0 64px}
article{font-size:17.5px;line-height:1.75;color:#d5dcf0;min-width:0}
article h2{color:var(--text);font-size:26px;margin:40px 0 10px;letter-spacing:-.4px}
article h2 .step{display:inline-block;font-size:13px;vertical-align:middle;background:rgba(62,230,176,.12);color:var(--accent);border:1px solid rgba(62,230,176,.3);padding:2px 10px;border-radius:999px;margin-right:10px;font-weight:800}
article p{margin:0 0 16px}article ul,article ol{padding-left:22px;margin:0 0 18px}article li{margin:6px 0}
article a{color:var(--accent2);text-decoration:underline;text-underline-offset:3px}
article pre{background:#070b17;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:10px;padding:14px 18px;font-size:15px;color:#c9f5e6;overflow-x:auto;margin:0 0 18px}
article pre .p{color:#5e6a92;user-select:none}
.tip{background:rgba(255,184,77,.08);border:1px solid rgba(255,184,77,.3);border-radius:12px;padding:14px 18px;margin:0 0 18px}
article table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15.5px;background:var(--card);border-radius:12px;overflow:hidden}
article th,article td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
article th{background:#1b2550;color:var(--text)}
article tr:last-child td{border-bottom:0}
aside .box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:20px}
aside .sticky{position:sticky;top:90px}
aside h4{margin:0 0 8px;font-size:17px}aside p{margin:0 0 14px;color:var(--muted);font-size:14px}
.dl{border-color:rgba(62,230,176,.45);background:linear-gradient(160deg,rgba(62,230,176,.12),var(--card) 60%)}
.dl .row{display:flex;gap:14px;align-items:center;margin-bottom:14px}
.dl .pdf{width:64px;height:84px;padding:8px 7px}
.dl ul{margin:0 0 14px;padding-left:18px;font-size:14px;color:var(--muted)}
.btn.full{width:100%;justify-content:center}
.yt-box .wtile{display:block;aspect-ratio:16/9;border-radius:10px;margin-bottom:14px;position:relative;overflow:hidden;cursor:pointer;border:1px solid transparent;transition:border-color .15s,transform .15s,box-shadow .15s}
.yt-box .wtile:hover,.yt-box .wtile:focus-visible{border-color:#ff3d3d;transform:translateY(-2px);box-shadow:0 8px 22px rgba(255,61,61,.25)}
.yt-box .wtile:focus-visible{outline:2px solid #fff;outline-offset:2px}
.yt-box .vidtile{background:#000}.yt-box .vidtile img{display:block;width:100%;height:100%;object-fit:cover;transition:opacity .15s}
.yt-box .vidtile:hover img{opacity:.85}
.yt-box .wpill{position:absolute;right:10px;bottom:10px;display:inline-flex;align-items:center;gap:7px;background:#ff3d3d;color:#fff;font-size:13px;font-weight:700;padding:6px 11px;border-radius:999px;box-shadow:0 2px 8px rgba(0,0,0,.4);transition:background .15s}
.yt-box .wtile:hover .wpill{background:#ff5252}
.yt-box .chantile{background:linear-gradient(135deg,#2a0f14,#5a1620);display:flex;align-items:center;gap:12px;padding:14px 14px 48px}
.yt-box .chav{flex:none;width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;font-weight:800;font-size:20px;color:#06221a;border:2px solid rgba(255,255,255,.85)}
.yt-box .chname{display:flex;flex-direction:column;min-width:0;color:#fff}.yt-box .chname b{font-size:16px;line-height:1.2}.yt-box .chname small{font-size:12px;color:#f0c4c8;opacity:.9}
.yt-box .chantile .wpill{left:14px;right:auto}
.yt-box .ytchan{display:block;text-align:center;margin-top:10px;font-size:14px;color:var(--muted)}.yt-box .ytchan:hover{color:var(--text);text-decoration:underline}
.btn.red{background:#ff3d3d;color:#fff}
.toc ol{margin:0;padding-left:20px;font-size:14px;color:var(--muted)}.toc li{margin:5px 0}
.author{display:flex;gap:14px;align-items:center;margin-top:36px;padding:20px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.author .avatar{width:56px;height:56px;font-size:19px}
/* responsive */
@media (max-width:980px){.grid{grid-template-columns:repeat(2,1fr)}.hero .wrap{grid-template-columns:1fr}.terminal{display:none}.post-layout{grid-template-columns:1fr}aside .sticky{position:static}}
@media (max-width:640px){
 .wrap{padding:0 18px}
 nav.main a:not(.yt){display:none}nav.main .menu{display:grid}
 .hero{padding:44px 0 40px}.hero h1{font-size:36px;letter-spacing:-1px}.hero p.lead{font-size:17px}
 .signup{flex-direction:column}.signup .btn{justify-content:center}
 .stats{gap:18px}.stats b{font-size:20px}
 section{padding:44px 0}.sec-head h2{font-size:26px}
 .grid{grid-template-columns:1fr}
 .chips{flex-wrap:nowrap;overflow-x:auto;margin-right:-18px;padding-right:18px;scrollbar-width:none}.chip{flex:none}
 .start{grid-template-columns:auto 1fr;padding:18px}.start .btn{grid-column:1/-1;justify-content:center}
 .about{grid-template-columns:1fr;text-align:center;justify-items:center}
 .post-hero h1{font-size:30px}article{font-size:16.5px}
 footer .wrap{flex-direction:column;align-items:flex-start}
}
.menu{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);place-items:center;color:var(--text)}
.card.suggest{border-style:dashed;background:transparent}
.ic2{width:44px;height:44px;border-radius:12px;border:1px dashed var(--accent);color:var(--accent);display:grid;place-items:center;font-size:24px;font-weight:700}
.logo{color:var(--text)}
article h2:first-child{margin-top:0}
@media (max-width:640px){.start{align-items:start}.start .ic{width:46px;height:46px}}

/* ===== Full-site additions (built on the mockup design) ===== */
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#06221a;padding:8px 14px;border-radius:8px;z-index:50;font-weight:700}.skip:focus{left:12px}
nav.main a.on{color:var(--text);background:var(--bg2)}
.mnav{display:none;position:relative}
.mnav summary{list-style:none;cursor:pointer;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text)}
.mnav summary::-webkit-details-marker{display:none}
.mnav .panel{position:absolute;right:0;top:48px;background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:8px;min-width:220px;box-shadow:0 20px 40px rgba(0,0,0,.5);display:flex;flex-direction:column}
.mnav .panel a{padding:10px 14px;border-radius:10px;color:var(--text);font-weight:600}
.mnav .panel a:hover{background:var(--card)}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.thumb.has-img:after{display:none}
.card .thumb{height:150px}
.card .desc{margin:0;color:var(--muted);font-size:14px;line-height:1.5}
.badge.soon{color:var(--muted);background:rgba(154,166,200,.1)}
.chip{text-decoration:none}
a.chip:hover{color:var(--text);border-color:#3a4a85}
.cat-hero{padding:46px 0 36px;border-bottom:1px solid var(--line);background:radial-gradient(500px 240px at 85% 0%,rgba(62,230,176,.12),transparent 70%)}
.cat-hero h1{font-size:42px;margin:12px 0 8px;letter-spacing:-1px}.cat-hero p{color:var(--muted);max-width:680px;margin:0;font-size:18px}
.cat-hero .ic{width:58px;height:58px;border-radius:16px;display:grid;place-items:center}.cat-hero .ic svg{width:34px;height:34px}
.post-figure{margin:0 0 30px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#070b17;aspect-ratio:16/9}
.post-figure img{display:block;width:100%;height:100%;object-fit:cover}
.video-box{margin:6px 0 28px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.video-box h3{margin:0;padding:14px 18px;font-size:17px;color:var(--text);border-bottom:1px solid var(--line)}
.video-box video{display:block;width:100%;height:auto;background:#000;aspect-ratio:16/9}
.video-box .yt-embed{position:relative;width:100%;aspect-ratio:16/9;background:#000}
.video-box .yt-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.video-box .yt-cap{margin:0;padding:12px 18px 0;font-size:15px;color:var(--text);line-height:1.5}
.video-box .ai{display:flex;gap:10px;align-items:flex-start;padding:12px 18px;font-size:14px;color:var(--muted);line-height:1.5}
.ai-tag{flex:none;font-size:11px;font-weight:800;letter-spacing:.6px;color:#06221a;background:var(--it);padding:2px 8px;border-radius:999px;margin-top:2px}
article pre{position:relative}
article pre code{font-family:"JetBrains Mono","Fira Code",Consolas,Menlo,monospace;font-size:14.5px;background:none;padding:0;color:inherit;white-space:pre}
article :not(pre)>code{background:#1b2550;color:#c9f5e6;padding:1px 6px;border-radius:6px;font-size:.88em;word-break:break-word}
.copy{position:absolute;top:8px;right:8px;font:600 12px/1 system-ui,sans-serif;background:#1b2550;color:var(--muted);border:1px solid var(--line);border-radius:8px;padding:6px 9px;cursor:pointer}
.copy:hover{color:var(--text)}
article h3{color:var(--text);font-size:20px;margin:28px 0 8px}
article blockquote{margin:0 0 18px;padding:0;border:0}
.tip p{margin:0}
.tblwrap{overflow-x:auto;margin:0 0 22px;border-radius:12px}.tblwrap table{margin:0}
.inline-dl{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:28px 0;padding:18px 20px;border:1px solid rgba(106,168,255,.35);border-radius:14px;background:var(--card);flex-wrap:wrap}
article a.btn{text-decoration:none;color:#06221a}.inline-dl .row{margin:0}.inline-dl h4{margin:0 0 4px;color:var(--text)}
.note{font-size:14px;color:var(--muted);margin-top:-12px}
.updated{font-size:13px;color:var(--muted)}
.soon-box{border-style:dashed}
.related{padding:0 0 64px}.related h2{font-size:26px;margin:0 0 18px}
.pdfimg{flex:none;width:96px;border-radius:8px;box-shadow:0 10px 24px rgba(0,0,0,.35);background:#fff;display:block}
.dl .pdfimg{width:64px}
.sheet.soon{opacity:.85}.sheet.soon .pdf{filter:grayscale(.6)}
.soon-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px}
.soon-list div{background:var(--card);border:1px dashed var(--line);border-radius:14px;padding:16px 18px}
.soon-list b{display:block;margin-bottom:4px}.soon-list span{color:var(--muted);font-size:14px}
.draft{background:repeating-linear-gradient(45deg,rgba(255,184,77,.14),rgba(255,184,77,.14) 12px,rgba(255,184,77,.06) 12px,rgba(255,184,77,.06) 24px);border:2px solid var(--it);color:var(--text);border-radius:14px;padding:14px 18px;margin:24px 0 0;font-size:15px}
.draft b{color:var(--it)}
.ph{background:rgba(255,184,77,.16);color:var(--it);border:1px dashed var(--it);border-radius:6px;padding:0 6px;font-weight:700}
.page-body{max-width:820px;padding:30px 0 70px}
.timeline{position:relative;margin:18px 0 30px;padding-left:0}
.tl-item{display:grid;grid-template-columns:76px 1fr;gap:18px;position:relative;padding-bottom:26px}
.tl-item:before{content:"";position:absolute;left:37px;top:40px;bottom:0;width:2px;background:var(--line)}
.tl-item:last-child:before{display:none}
.tl-year{align-self:start;justify-self:center;font-weight:800;font-size:15px;color:#06221a;background:var(--accent);border-radius:999px;padding:6px 12px;position:relative;z-index:1}
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cert-grid.cisco{grid-template-columns:repeat(2,1fr);margin:14px 0 30px}
.cert-card{margin:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.cert-card a.lb{position:relative;display:block;background:#0e1430;line-height:0}
.cert-card img{width:100%;height:220px;object-fit:contain;padding:10px;box-sizing:border-box;transition:transform .2s}
.cert-card a.lb:hover img{transform:scale(1.03)}
.cert-card .zoom{position:absolute;right:10px;bottom:10px;line-height:1.4;font-size:12px;font-weight:700;color:var(--text);background:rgba(11,16,32,.8);border:1px solid var(--line);border-radius:999px;padding:3px 10px}
.cert-card figcaption{padding:12px 16px 14px;font-size:14px;color:var(--muted)}
.cert-card figcaption b{color:var(--text);display:block;margin-bottom:2px}
.cert-card figcaption span{display:block}.cert-card .when{color:var(--accent);font-weight:700;margin-top:4px}
.cert-card.headline{display:grid;grid-template-columns:minmax(200px,300px) 1fr;align-items:center;border-color:rgba(62,230,176,.45)}
.cert-card.headline img{height:340px}
.cert-card.headline figcaption{padding:20px 22px;font-size:15px}.cert-card.headline figcaption b{font-size:19px;line-height:1.35;margin-bottom:6px}
dialog.lightbox{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg2);color:var(--text);padding:14px;max-width:min(96vw,1100px);max-height:94vh;box-sizing:border-box}
dialog.lightbox::backdrop{background:rgba(3,6,14,.85)}
dialog.lightbox img{display:block;max-width:100%;max-height:calc(94vh - 110px);margin:0 auto;border-radius:8px}
dialog.lightbox p{margin:10px 40px 0 4px;font-size:14px;color:var(--muted)}
.lb-close{position:absolute;top:8px;right:10px;width:36px;height:36px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--text);font-size:22px;line-height:1;cursor:pointer}
.e404{text-align:center;padding:90px 0}.e404 h1{font-size:96px;margin:0;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.e404 p{color:var(--muted);font-size:18px}.e404 .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:22px}
@media (max-width:980px){nav.main a.hide-md{display:none}.cert-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){
 nav.main a:not(.yt){display:none}nav.main .mnav{display:block}
 .soon-list,.cert-grid,.cert-grid.cisco{grid-template-columns:1fr}
 .tl-item{grid-template-columns:1fr;gap:10px}.tl-item:before{display:none}.tl-year{justify-self:start}
 .cert-card.headline{grid-template-columns:1fr}.cert-card.headline img{height:300px}
 .cat-hero h1{font-size:32px}
 .hero .cta .btn{flex:1;justify-content:center}
 nav.main a.yt{padding:8px 10px}
}
.card .thumb{height:auto;aspect-ratio:16/9}
.sheet .btns{display:flex;gap:8px;flex-wrap:wrap}.sheet .btns .btn{padding:9px 14px;font-size:14px}
.inline-dl .row{display:flex;gap:16px;align-items:center}
@media (max-width:640px){nav.main .mnav .panel a{display:block}}

/* Gadgets coming-soon cards and teaser */
.soon-card{border-style:dashed}.soon-card:hover{transform:none}
.soon-card .thumb{display:grid;place-items:center}.soon-card .soon-ic svg{width:64px;height:64px;opacity:.85}
.teaser{display:flex;gap:16px;align-items:center;margin-top:26px;padding:18px 20px;border:1px dashed rgba(177,140,255,.5);border-radius:14px;background:var(--card)}
.teaser b{display:block;margin-bottom:2px}.teaser span:not(.badge){color:var(--muted);font-size:15px}.teaser .badge{flex:none}
nav.main a{white-space:nowrap}
@media (max-width:1180px){nav.main a.hide-md{display:none}nav.main{gap:2px}nav.main a{padding:8px 10px;font-size:14.5px}}
.grid.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1100px){.grid.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid.g4{grid-template-columns:1fr}}
.badge{white-space:nowrap}
@media (max-width:900px){nav.main a:not(.yt){display:none}nav.main .mnav{display:block}nav.main .mnav .panel a{display:block}}