:root{
  --ink:#0A0B0D;
  --panel:#15181E;
  --panel-2:#1B1F27;
  --cyan:#00F0FF;
  --cyan-dim:#0A8F97;
  --amber:#FF9D42;
  --text:#FFFFFF;
  --text-dim:#B7BCC6;
  --line:rgba(255,255,255,.11);
  --paper:#F4F6F8;
  --paper-ink:#181B20;
  --paper-dim:#59616D;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--ink);color:var(--text);font-family:'IBM Plex Sans',sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased;font-weight:300;}
::selection{background:var(--cyan);color:var(--ink);}
a{color:inherit;}
img{max-width:100%;}
.wrap{width:min(1180px,calc(100% - 64px));margin:0 auto;}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--cyan);font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);}
h1,h2,h3{font-family:'Tektur',sans-serif;font-weight:600;letter-spacing:0;text-transform:uppercase;}

.review-banner{padding:10px 20px;background:#1F242C;border-bottom:1px solid var(--line);color:#D6DAE1;font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.06em;text-align:center;text-transform:uppercase;}
.review-banner strong{color:var(--amber);}
header{position:sticky;top:0;z-index:50;background:rgba(10,11,13,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
nav.wrap{height:76px;display:flex;align-items:center;justify-content:space-between;}
.brand{display:flex;align-items:center;text-decoration:none;}
.brand img{display:block;width:166px;height:auto;}
.nav-links{display:flex;align-items:center;gap:32px;color:var(--text-dim);font-size:13px;}
.nav-links a{text-decoration:none;}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--text);}
.nav-cta{padding:11px 18px;border:1px solid var(--cyan-dim);color:var(--cyan)!important;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.05em;text-transform:uppercase;}
.nav-toggle,.mobile-nav{display:none;}

.archive-hero{padding:92px 0 62px;border-bottom:1px solid var(--line);}
.archive-hero h1{max-width:850px;margin:18px 0 18px;font-size:clamp(40px,6vw,72px);line-height:1.02;}
.archive-hero p{max-width:680px;margin:0;color:var(--text-dim);font-size:18px;}
.archive-list{padding:72px 0 96px;}
.post-row{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(320px,.82fr);gap:54px;align-items:center;padding-bottom:64px;border-bottom:1px solid var(--line);}
.post-image{display:block;border:1px solid var(--line);overflow:hidden;}
.post-image img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.post-image:hover img{transform:scale(1.015);}
.post-meta{color:var(--cyan);font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;}
.post-copy h2{margin:15px 0 18px;font-size:clamp(27px,3.2vw,40px);line-height:1.12;}
.post-copy p{margin:0 0 27px;color:var(--text-dim);font-size:16px;}
.text-link{display:inline-flex;align-items:center;gap:10px;color:var(--cyan);font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.06em;text-decoration:none;text-transform:uppercase;}
.text-link::after{content:"\2192";font-size:18px;transition:transform .2s ease;}
.text-link:hover::after{transform:translateX(4px);}

.article-hero{min-height:min(620px,calc(100svh - 180px));position:relative;display:flex;align-items:flex-end;overflow:hidden;background:#0B0D10 url('../assets/blog/coldcard-entropy-recovery-hero.png') center/cover no-repeat;border-bottom:1px solid var(--line);}
.article-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,7,9,.96) 0%,rgba(5,7,9,.82) 42%,rgba(5,7,9,.18) 76%),linear-gradient(0deg,rgba(5,7,9,.92) 0%,transparent 58%);}
.article-hero .wrap{position:relative;z-index:1;padding-bottom:64px;}
.article-meta{margin-top:22px;color:#D6DAE1;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.07em;text-transform:uppercase;}
.article-hero h1{max-width:880px;margin:20px 0 20px;font-size:clamp(38px,5.8vw,70px);line-height:1.02;}
.article-deck{max-width:760px;margin:0;color:#D9DDE4;font-size:19px;line-height:1.55;}
.impact-band{background:var(--panel);border-bottom:1px solid var(--line);}
.impact-grid{display:grid;grid-template-columns:repeat(3,1fr);}
.impact-item{padding:30px 34px;border-right:1px solid var(--line);}
.impact-item:first-child{padding-left:0;}
.impact-item:last-child{border-right:0;padding-right:0;}
.impact-value{color:var(--cyan);font-family:'Tektur',sans-serif;font-size:29px;font-weight:600;line-height:1;}
.impact-label{margin-top:8px;color:var(--text-dim);font-size:13px;}

.article-shell{background:var(--paper);color:var(--paper-ink);}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(220px,1fr);gap:76px;padding-top:80px;padding-bottom:88px;align-items:start;}
.article-body{font-size:17px;line-height:1.75;}
.article-body h2{margin:58px 0 16px;font-size:30px;line-height:1.16;color:#11151A;}
.article-body h2:first-child{margin-top:0;}
.article-body h3{margin:34px 0 12px;font-size:19px;color:#11151A;}
.article-body p{margin:0 0 22px;}
.article-body a{color:#006E76;text-underline-offset:3px;}
.article-body strong{font-weight:600;}
.lede{font-size:21px;line-height:1.58;color:#252A32;}
.pull-quote{margin:38px 0;padding:24px 0 24px 26px;border-left:3px solid var(--cyan-dim);font-family:'Tektur',sans-serif;font-size:23px;font-weight:500;line-height:1.35;color:#11151A;text-transform:uppercase;}
.safety-note{margin:34px 0;padding:22px 24px;background:#E5EAEE;border-left:3px solid #DB6B22;}
.safety-note strong{display:block;margin-bottom:5px;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#8A3B08;}
.trust-steps{margin:30px 0 38px;border-top:1px solid #C8D0D7;}
.trust-step{display:grid;grid-template-columns:54px 1fr;gap:14px;padding:20px 0;border-bottom:1px solid #C8D0D7;}
.trust-step .num{color:#008C96;font-family:'IBM Plex Mono',monospace;font-size:13px;font-weight:600;}
.trust-step h3{margin:0 0 6px;font-size:17px;}
.trust-step p{margin:0;color:#424A54;font-size:15px;line-height:1.58;}
.article-aside{position:sticky;top:116px;padding-left:24px;border-left:1px solid #C8D0D7;}
.article-aside h2{margin:0 0 14px;color:#11151A;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.09em;text-transform:uppercase;}
.article-aside ol{margin:0;padding:0;list-style:none;counter-reset:toc;}
.article-aside li{counter-increment:toc;margin:0;border-top:1px solid #D7DDE2;}
.article-aside a{display:grid;grid-template-columns:25px 1fr;gap:6px;padding:11px 0;color:#4E5661;font-size:13px;line-height:1.35;text-decoration:none;}
.article-aside a::before{content:"0" counter(toc);color:#008C96;font-family:'IBM Plex Mono',monospace;font-size:10px;}
.article-aside a:hover{color:#11151A;}

.cta-band{padding:76px 0;background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:58px;align-items:end;}
.cta-grid h2{max-width:790px;margin:17px 0 18px;font-size:clamp(28px,4vw,48px);line-height:1.08;}
.cta-grid p{max-width:780px;margin:0;color:var(--text-dim);font-size:16px;}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:14px 24px;background:var(--cyan);color:var(--ink);font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:500;letter-spacing:.05em;text-decoration:none;text-transform:uppercase;white-space:nowrap;}
.sources{padding:62px 0 72px;}
.sources h2{margin:0 0 22px;font-size:20px;}
.source-list{display:grid;gap:0;border-top:1px solid var(--line);}
.source-list a{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line);color:var(--text-dim);font-size:13px;text-decoration:none;}
.source-list a::after{content:"\2197";color:var(--cyan);font-size:16px;}
.source-list a:hover{color:var(--text);}
.disclosure{margin-top:24px;color:#7F8792;font-size:12px;line-height:1.65;}
footer{padding:42px 0;}
.footer-grid{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap;}
.footer-note{max-width:580px;color:var(--text-dim);font-family:'IBM Plex Mono',monospace;font-size:10.5px;line-height:1.7;}
.footer-links{display:flex;gap:24px;color:var(--text-dim);font-size:12px;}
.footer-links a{text-decoration:none;}
.footer-links a:hover{color:var(--text);}

@media(max-width:900px){
  .nav-links{display:none;}
  .nav-toggle{width:44px;height:44px;padding:0;border:1px solid var(--line);background:transparent;display:grid;place-content:center;gap:5px;color:var(--text);cursor:pointer;}
  .nav-toggle span{display:block;width:18px;height:1px;background:currentColor;}
  .mobile-nav{position:absolute;top:100%;left:0;right:0;display:grid;padding:8px 32px 22px;background:rgba(10,11,13,.98);border-bottom:1px solid var(--line);opacity:0;visibility:hidden;transform:translateY(-8px);pointer-events:none;transition:opacity .2s,transform .2s,visibility .2s;}
  header.menu-open .mobile-nav{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
  .mobile-nav a{padding:13px 0;border-bottom:1px solid var(--line);color:var(--text-dim);font-size:14px;text-decoration:none;}
  .mobile-nav .nav-cta{margin-top:14px;text-align:center;}
  .post-row{grid-template-columns:1fr;gap:34px;}
  .article-layout{grid-template-columns:1fr;gap:48px;}
  .article-aside{position:static;order:-1;padding-left:0;border-left:0;border-bottom:1px solid #C8D0D7;padding-bottom:22px;}
  .article-aside ol{display:grid;grid-template-columns:repeat(2,1fr);column-gap:24px;}
  .cta-grid{grid-template-columns:1fr;align-items:start;gap:30px;}
}
@media(max-width:640px){
  .wrap{width:min(100% - 40px,1180px);}
  nav.wrap{height:68px;}
  .brand img{width:145px;}
  .mobile-nav{padding-left:20px;padding-right:20px;}
  .archive-hero{padding:68px 0 48px;}
  .archive-hero h1{font-size:42px;}
  .archive-list{padding:48px 0 72px;}
  .article-hero{min-height:min(660px,calc(100svh - 120px));background-position:40% center;}
  .article-hero::before{background:linear-gradient(0deg,rgba(5,7,9,.98) 0%,rgba(5,7,9,.78) 60%,rgba(5,7,9,.42) 100%);}
  .article-hero .wrap{padding-bottom:42px;}
  .article-hero h1{font-size:39px;}
  .article-deck{font-size:17px;}
  .impact-grid{grid-template-columns:1fr;}
  .impact-item,.impact-item:first-child,.impact-item:last-child{padding:22px 0;border-right:0;border-bottom:1px solid var(--line);}
  .impact-item:last-child{border-bottom:0;}
  .article-layout{padding-top:56px;padding-bottom:64px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:26px;}
  .lede{font-size:19px;}
  .article-aside ol{grid-template-columns:1fr;}
  .trust-step{grid-template-columns:40px 1fr;}
  .cta-band{padding:58px 0;}
  .source-list a{align-items:flex-start;}
}