:root{
  --bg:#0a0c10;
  --surface:#12151a;
  --surface2:#1a1e26;
  --text:#e4e2dc;
  --muted:#9a9a9a;
  --gold:#d4a832;
  --gold-dim:rgba(212,168,50,0.15);
  --red:#e85050;
  --green:#4ade80;
  --max:1040px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:Georgia,"Times New Roman",serif;line-height:1.7
}
a{color:var(--gold);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
nav{
  position:sticky;top:0;z-index:100;background:rgba(10,12,16,.95);
  backdrop-filter:blur(12px);border-bottom:1px solid rgba(212,168,50,.15)
}
.nav-inner{max-width:var(--max);margin:0 auto;padding:12px 16px;display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap}
.nav-brand{font-size:.95rem;letter-spacing:.12em;color:var(--gold);font-weight:600;text-transform:uppercase}
.nav-links{display:flex;gap:8px;flex-wrap:wrap}
.nav-btn{
  display:inline-block;padding:8px 14px;border:1px solid rgba(255,255,255,.1);border-radius:6px;color:var(--muted);
  font-family:Arial,sans-serif;font-size:.8rem
}
.nav-btn:hover,.nav-btn.active{color:var(--gold);border-color:var(--gold);background:var(--gold-dim);text-decoration:none}
main{max-width:var(--max);margin:0 auto;padding:40px 20px}
.hero{padding:18px 0 8px}
h1{font-size:2rem;color:#fff;margin:0 0 12px}
h2{font-size:1.5rem;color:#fff;margin:0 0 16px}
h3{font-size:1.15rem;color:var(--gold);margin:24px 0 12px}
p{margin:0 0 14px}
strong{color:#fff}
.muted{color:var(--muted)}
.card{
  background:var(--surface);border:1px solid rgba(255,255,255,.05);border-radius:12px;
  padding:24px;margin:0 0 20px
}
.card-gold{background:var(--gold-dim);border-color:rgba(212,168,50,.2)}
.grid{display:grid;gap:20px}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid.three{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.kicker{display:inline-block;padding:8px 14px;border-radius:999px;background:var(--gold-dim);border:1px solid rgba(212,168,50,.3);color:var(--gold);font-family:Arial,sans-serif;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.invariant{
  display:inline-block;padding:12px 20px;border:1px solid rgba(212,168,50,.3);border-radius:999px;
  background:var(--gold-dim);font-family:monospace;color:var(--gold);font-size:.95rem
}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;margin-bottom:16px}
.result-item{text-align:center}
.result-label{color:var(--muted);font-size:.8rem;margin-bottom:4px}
.result-value{font-size:1.4rem;font-weight:600}
.result-value.gold{color:var(--gold)} .result-value.red{color:var(--red)} .result-value.green{color:var(--green)}
.input-group{margin-bottom:16px}
.input-label{display:block;color:var(--muted);font-size:.85rem;margin-bottom:6px}
.input-field{
  width:100%;padding:12px;background:var(--bg);border:1px solid rgba(255,255,255,.1);border-radius:6px;color:#fff;font-size:1rem
}
.input-field:focus{outline:none;border-color:var(--gold)}
.btn{
  display:inline-block;padding:14px 24px;background:linear-gradient(135deg,var(--gold) 0%,#a08020 100%);
  border:none;border-radius:8px;color:#000;font-weight:600;cursor:pointer;font-size:1rem;text-decoration:none
}
.btn:hover{opacity:.92;text-decoration:none}
.btn.block{width:100%}
.btn-outline{background:transparent;border:1px solid var(--gold);color:var(--gold)}
.page-list{display:grid;gap:12px}
.page-list a{display:block;padding:14px 16px;border-radius:10px;background:var(--surface2);border:1px solid rgba(255,255,255,.06)}
.page-list a:hover{text-decoration:none;border-color:rgba(212,168,50,.28)}
.registry .reg-item{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.04)}
.registry .reg-item:last-child{border-bottom:none}
.registry strong{display:block;margin-bottom:2px}
.essay-card{background:var(--surface);border:1px solid rgba(255,255,255,.04);border-radius:12px;padding:20px}
.meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:.82rem;font-family:Arial,sans-serif}
.tag{display:inline-block;padding:4px 8px;border:1px solid rgba(255,255,255,.1);border-radius:999px}
.article{max-width:800px}
.article h1{font-size:2.2rem}
.article-content p,.article-content blockquote,.article-content ul,.article-content ol{margin-bottom:16px}
.article-content blockquote{margin:18px 0;padding:12px 16px;border-left:3px solid var(--gold);background:rgba(255,255,255,.03)}
.article-content h1,.article-content h2,.article-content h3{margin-top:30px}
.article-content table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.95rem}
.article-content td,.article-content th{border:1px solid rgba(255,255,255,.08);padding:8px;vertical-align:top}
.search-box{margin:4px 0 26px}
footer{text-align:center;padding:40px 20px;color:#666;font-size:.85rem;border-top:1px solid rgba(255,255,255,.04);margin-top:40px}
.note{font-size:.92rem;color:var(--muted)}
@media (max-width:700px){
  .nav-brand{font-size:.8rem}
  .nav-btn{padding:6px 10px;font-size:.75rem}
  h1{font-size:1.7rem}
  main{padding:28px 16px}
  .article h1{font-size:1.8rem}
}


/* v2 enhancements */
.seal-wrap{display:flex;justify-content:center;align-items:center;flex-direction:column;gap:18px}
.seal-img{width:min(340px,100%);height:auto;display:block;object-fit:contain;filter:drop-shadow(0 10px 24px rgba(0,0,0,.32))}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin:8px 0 24px}
.stat-card{background:var(--surface2);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:16px}
.stat-value{font-size:1.45rem;font-weight:600;color:#fff}
.section-anchor-list{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 28px}
.section-anchor-list a{display:inline-block;padding:8px 12px;border:1px solid rgba(212,168,50,.24);border-radius:999px;background:rgba(212,168,50,.07)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-bottom:24px}
.repo-box code,.note code{background:rgba(255,255,255,.05);padding:2px 6px;border-radius:6px}



/* v8 certification/install additions */
.step-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:18px 0 28px}
.step-card{background:var(--surface2);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:18px}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--gold-dim);border:1px solid rgba(212,168,50,.28);color:var(--gold);font-weight:700;margin-bottom:10px}
.price{display:block;margin-top:12px;color:#fff;font-weight:700}
.soft-list{display:grid;gap:10px;margin:16px 0}
.soft-list div{padding:12px 14px;border-radius:10px;background:var(--surface2);border:1px solid rgba(255,255,255,.06)}
.install-box{background:linear-gradient(135deg,rgba(212,168,50,.14),rgba(212,168,50,.04));border:1px solid rgba(212,168,50,.28)}
.mini-note{font-size:.82rem;color:var(--muted)}