:root{
  --bg:#050505; --bg-raise:#0e0e0e; --ink:#e5e5e5; --ink-dim:#9a9a9a; --ink-mute:#6f6f6f;
  --cyan:#00ffff; --cyan-dim:rgba(0,255,255,0.15); --red:#ff4d6d; --red-dim:rgba(255,77,109,0.15);
  --line:rgba(255,255,255,0.08); --line-cyan:rgba(0,255,255,0.18);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:'Inter',sans-serif;background:var(--bg);color:var(--ink);overflow-x:hidden;}
.font-cyber{font-family:'Orbitron',monospace;}
::-webkit-scrollbar{width:6px;} ::-webkit-scrollbar-track{background:#0a0a0a;}
::-webkit-scrollbar-thumb{background:#00ffff44;border-radius:4px;} ::-webkit-scrollbar-thumb:hover{background:#00ffff88;}
:focus-visible{outline:2px solid var(--cyan); outline-offset:3px; border-radius:3px;}

.cyber-grid{background-image:linear-gradient(rgba(0,255,255,0.035) 1px, transparent 1px),linear-gradient(90deg, rgba(0,255,255,0.035) 1px, transparent 1px);background-size:46px 46px;}

.wrap{max-width:1180px;margin:0 auto;padding:0 20px;}
.wrap-narrow{max-width:800px;margin:0 auto;padding:0 20px;}
.wrap-mid{max-width:960px;margin:0 auto;padding:0 20px;}

header.site-header{position:sticky;top:0;z-index:50;background:rgba(5,5,5,0.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line-cyan);}
.header-row{max-width:1180px;margin:0 auto;padding:13px 20px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.logo{display:flex;align-items:center;gap:9px;flex-shrink:0;text-decoration:none;}
.logo svg,.logo i{width:26px;height:26px;color:var(--red);}
.logo span{font-family:'Orbitron',monospace;font-weight:800;font-size:17px;letter-spacing:.01em;}
.logo b{color:var(--red);} .logo em{color:var(--cyan);font-style:normal;}
.crumb-sep{color:#444;}
.blog-tag{font-family:'Orbitron',monospace;font-size:12.5px;font-weight:800;color:#c9c9c9;letter-spacing:.05em;}
nav.main-nav{display:none;align-items:center;gap:22px;margin-left:22px;font-family:'Orbitron',monospace;font-size:11.5px;font-weight:700;letter-spacing:.06em;color:#93a0a3;}
@media(min-width:860px){nav.main-nav{display:flex;}}
nav.main-nav a{color:inherit;text-decoration:none;transition:color .15s;position:relative;}
nav.main-nav a:hover{color:var(--cyan);}
nav.main-nav a.active{color:var(--cyan);}
.home-btn{display:inline-flex;align-items:center;gap:8px;font-family:'Orbitron',monospace;font-weight:800;font-size:12.5px;letter-spacing:.05em;color:#050505;background:linear-gradient(135deg,#00ffff,#00b3b3);padding:10px 18px;border-radius:10px;box-shadow:0 4px 18px rgba(0,255,255,0.25);transition:transform .18s ease,box-shadow .18s ease;text-decoration:none;white-space:nowrap;}
.home-btn:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(0,255,255,0.4);}
.home-btn.ml-auto{margin-left:auto;}

.progress-track{position:sticky;top:0px;z-index:49;height:2.5px;background:transparent;}
.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--red),var(--cyan));transition:width .1s linear;}

.anaglyph{position:relative;display:inline-block;}
.anaglyph::before,.anaglyph::after{content:attr(data-text);position:absolute;left:0;top:0;width:100%;mix-blend-mode:screen;transition:transform .5s cubic-bezier(.16,1,.3,1),opacity .5s;}
.anaglyph::before{color:var(--red);transform:translate(-3px,0);opacity:.75;}
.anaglyph::after{color:var(--cyan);transform:translate(3px,0);opacity:.75;}
.anaglyph:hover::before,.anaglyph.converge::before{transform:translate(0,0);}
.anaglyph:hover::after,.anaglyph.converge::after{transform:translate(0,0);}
.anaglyph span.base{position:relative;color:var(--ink);}

.breadcrumb{font-family:'Orbitron',monospace;font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--ink-mute);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.breadcrumb a{color:var(--ink-mute);text-decoration:none;} .breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:#3a3a3a;}
.breadcrumb .current{color:#7fdada;}

.glass-panel{background:rgba(20,20,20,0.85);backdrop-filter:blur(10px);border:1px solid var(--line-cyan);}
.chip{font-size:12.5px;font-weight:700;letter-spacing:.02em;color:var(--cyan);border:1px solid rgba(0,255,255,0.3);background:rgba(0,255,255,0.05);padding:7px 13px;border-radius:999px;white-space:nowrap;transition:background .18s,border-color .18s,transform .18s;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:6px;}
.chip:hover{background:rgba(0,255,255,0.18);border-color:rgba(0,255,255,0.7);transform:translateY(-1px);}
.chip.active{background:var(--cyan);color:#04211f;border-color:var(--cyan);}

.hero{padding:64px 20px 30px;text-align:center;}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:'Orbitron',monospace;font-size:12px;font-weight:800;letter-spacing:.22em;color:var(--red);margin-bottom:20px;text-transform:uppercase;}
.hero h1{font-family:'Orbitron',monospace;font-weight:900;font-size:clamp(32px,5.6vw,58px);line-height:1.12;margin:0 0 20px;letter-spacing:-.01em;}
.hero p.lede{color:var(--ink-dim);max-width:640px;margin:0 auto;font-size:clamp(15px,1.6vw,18px);line-height:1.7;}
.hero .cta-row{margin-top:30px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.ghost-btn{display:inline-flex;align-items:center;gap:8px;font-family:'Orbitron',monospace;font-weight:700;font-size:12.5px;letter-spacing:.05em;color:var(--ink);border:1.5px solid var(--line);padding:9px 18px;border-radius:10px;transition:border-color .18s,background .18s;text-decoration:none;}
.ghost-btn:hover{border-color:var(--line-cyan);background:rgba(255,255,255,0.03);}

.stat-strip{display:flex;justify-content:center;gap:0;flex-wrap:wrap;margin-top:40px;}
.stat{padding:0 26px;text-align:center;border-left:1px solid var(--line);}
.stat:first-child{border-left:none;}
.stat b{display:block;font-family:'Orbitron',monospace;font-size:22px;color:var(--cyan);}
.stat span{font-size:11px;color:var(--ink-mute);letter-spacing:.04em;text-transform:uppercase;}

.search-box{position:relative;max-width:440px;margin:0 auto;}
.search-box input{width:100%;background:rgba(255,255,255,0.03);border:1px solid var(--line);color:var(--ink);padding:12px 16px 12px 42px;border-radius:12px;font-size:14px;font-family:'Inter',sans-serif;transition:border-color .18s;}
.search-box input:focus{border-color:var(--line-cyan);outline:none;}
.search-box i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--ink-mute);width:17px;height:17px;}
.filter-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:22px;}

.grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media(min-width:700px){.grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1040px){.grid{grid-template-columns:1fr 1fr 1fr;}}

.depth-card{position:relative;background:rgba(14,14,14,0.9);border:1px solid rgba(255,255,255,0.07);border-radius:16px;padding:26px;text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .22s cubic-bezier(.16,1,.3,1),box-shadow .22s,border-color .22s;}
.depth-card:hover{transform:translateY(-5px);border-color:rgba(255,255,255,0.14);box-shadow:-4px 0 0 rgba(255,77,109,.55),4px 0 0 rgba(0,255,255,.55),0 14px 34px rgba(0,0,0,.45);}
.depth-card .cat-row{display:flex;align-items:center;gap:8px;font-family:'Orbitron',monospace;font-size:10.5px;font-weight:800;letter-spacing:.09em;color:var(--red);text-transform:uppercase;margin-bottom:14px;}
.depth-card .cat-row i{width:14px;height:14px;}
.depth-card h3{font-family:'Orbitron',monospace;font-weight:800;font-size:17px;color:var(--cyan);line-height:1.4;margin:0 0 10px;letter-spacing:.01em;}
.depth-card p{color:var(--ink-dim);font-size:13.5px;line-height:1.65;margin:0 0 16px;flex-grow:1;}
.depth-card .meta{display:flex;align-items:center;justify-content:space-between;font-size:11.5px;color:var(--ink-mute);font-family:'Orbitron',monospace;letter-spacing:.03em;margin-top:auto;}
.depth-card .meta .go{color:var(--cyan);display:inline-flex;align-items:center;gap:4px;}
.depth-card .meta .go i{width:13px;height:13px;transition:transform .18s;}
.depth-card:hover .meta .go i{transform:translateX(3px);}

.empty-state{text-align:center;padding:60px 20px;color:var(--ink-mute);display:none;}
.empty-state.show{display:block;}

.section-head{max-width:1180px;margin:0 auto;padding:52px 20px 6px;}
.section-head .kicker{font-family:'Orbitron',monospace;font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--cyan);text-transform:uppercase;margin-bottom:8px;}
.section-head h2{font-family:'Orbitron',monospace;font-weight:800;font-size:clamp(22px,3vw,30px);margin:0;}

.article-shell{max-width:1180px;margin:0 auto;padding:26px 20px 10px;display:grid;grid-template-columns:1fr;gap:40px;}
@media(min-width:960px){.article-shell{grid-template-columns:minmax(0,720px) 260px;align-items:start;}}

.article-head{margin-bottom:26px;}
.article-head .cat-chip{display:inline-flex;align-items:center;gap:7px;font-family:'Orbitron',monospace;font-size:11px;font-weight:800;letter-spacing:.09em;color:var(--red);text-transform:uppercase;margin-bottom:16px;}
.article-head h1{font-family:'Orbitron',monospace;font-weight:900;font-size:clamp(26px,4.2vw,42px);line-height:1.22;margin:0 0 16px;}
.article-head .dek{color:var(--ink-dim);font-size:16.5px;line-height:1.7;margin:0 0 18px;max-width:640px;}
.article-head .meta-row{display:flex;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--ink-mute);font-family:'Orbitron',monospace;letter-spacing:.03em;}
.article-head .meta-row span{display:inline-flex;align-items:center;gap:6px;}
.article-head .meta-row i{width:14px;height:14px;color:var(--cyan);}

article.content h3{font-family:'Orbitron',monospace;font-weight:700;font-size:16px;color:#e8e8e8;letter-spacing:.02em;margin:30px 0 10px;scroll-margin-top:110px;}
article.content p{color:#bcbcbc;line-height:1.8;font-size:15.5px;margin:0 0 15px;}
article.content ul,article.content ol{color:#bcbcbc;line-height:1.8;font-size:15.5px;margin:0 0 15px 22px;}
article.content li{margin-bottom:7px;}
article.content ul{list-style:disc;} article.content ol{list-style:decimal;}
article.content a.inline-link{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;}
article.content strong{color:#ddd;}

.cta-btn{display:inline-flex;align-items:center;gap:8px;font-family:'Orbitron',monospace;font-weight:700;font-size:12.5px;letter-spacing:.05em;color:var(--cyan);border:1.5px solid rgba(0,255,255,0.4);padding:10px 20px;border-radius:9px;margin-top:10px;transition:background .18s,border-color .18s;text-decoration:none;}
.cta-btn:hover{background:rgba(0,255,255,0.12);border-color:rgba(0,255,255,0.7);}

.rail{position:sticky;top:96px;display:none;}
@media(min-width:960px){.rail{display:block;}}
.rail-card{background:rgba(14,14,14,0.85);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:18px;}
.rail-card h4{font-family:'Orbitron',monospace;font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--ink-mute);text-transform:uppercase;margin:0 0 14px;}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.toc-list a{color:#a7a7a7;text-decoration:none;font-size:13px;line-height:1.4;display:block;border-left:2px solid var(--line);padding-left:12px;transition:color .15s,border-color .15s;}
.toc-list a:hover,.toc-list a.active{color:var(--cyan);border-color:var(--cyan);}
.rail-cta p{font-size:13px;color:var(--ink-dim);line-height:1.6;margin:0 0 14px;}

.related-wrap{max-width:1180px;margin:8px auto 0;padding:20px 20px 10px;}
.related-wrap h3{font-family:'Orbitron',monospace;font-size:13px;letter-spacing:.1em;color:var(--ink-mute);text-transform:uppercase;margin:0 0 18px;}

.prevnext{max-width:1180px;margin:0 auto;padding:8px 20px 40px;display:grid;grid-template-columns:1fr;gap:14px;}
@media(min-width:700px){.prevnext{grid-template-columns:1fr 1fr;}}
.pn-card{border:1px solid var(--line);border-radius:14px;padding:18px 20px;text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:6px;transition:border-color .18s,transform .18s;}
.pn-card:hover{border-color:var(--line-cyan);transform:translateY(-2px);}
.pn-card .dir{font-family:'Orbitron',monospace;font-size:10.5px;letter-spacing:.12em;color:var(--ink-mute);display:flex;align-items:center;gap:6px;}
.pn-card.next{text-align:right;}
.pn-card.next .dir{justify-content:flex-end;}
.pn-card .ptitle{font-family:'Orbitron',monospace;font-size:14.5px;color:var(--cyan);}

.bottom-cta{max-width:1020px;margin:10px auto 60px;padding:0 20px;}
.bottom-cta .inner{border-radius:20px;padding:40px 30px;text-align:center;}
.bottom-cta h2{font-family:'Orbitron',monospace;font-size:clamp(19px,2.6vw,25px);font-weight:900;margin:0 0 12px;color:#fff;}
.bottom-cta p{color:#9a9a9a;margin:0 0 22px;max-width:520px;margin-left:auto;margin-right:auto;}

footer.site-footer{border-top:1px solid var(--line);padding:34px 0;}
.footer-row{max-width:1180px;margin:0 auto;padding:0 20px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;}
@media(min-width:760px){.footer-row{flex-direction:row;justify-content:space-between;text-align:left;}}
.footer-row .copy{color:#6a6a6a;font-size:12px;}
.footer-links{display:flex;gap:18px;font-size:11.5px;font-family:'Orbitron',monospace;font-weight:700;color:#9a9a9a;flex-wrap:wrap;justify-content:center;}
.footer-links a{color:inherit;text-decoration:none;} .footer-links a:hover{color:var(--cyan);}

#scroll-top-btn{position:fixed;right:20px;bottom:20px;z-index:45;width:44px;height:44px;border-radius:50%;background:rgba(0,255,255,0.12);border:1px solid rgba(0,255,255,0.4);color:var(--cyan);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;cursor:pointer;}
#scroll-top-btn.visible{opacity:1;pointer-events:auto;}
#scroll-top-btn:hover{transform:translateY(-3px);background:rgba(0,255,255,0.22);}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:0.001ms !important;transition-duration:0.001ms !important;}
  html{scroll-behavior:auto;}
}