:root{
  --bg:#232629;
  --surface:#2c3034;
  --surface-2:#34393e;
  --text:#e8eaed;
  --text-secondary:#d5d8dc;
  --muted:#c0c4c9;
  --border:#17191c;
  --neon:#f2f3f5;
  --cyber:#dfe2e6;
  --accent:#1e2124;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif;line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
.container{max-width:1180px;margin:0 auto;padding:0 1.25rem}
a{color:#f4f4f4}
a:hover{color:#fff}
/* Header */
.site-header{background:#1e2124;color:#e8eaed;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.site-header .container{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding-top:.9rem;padding-bottom:.9rem;flex-wrap:wrap}
.site-logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:800;font-size:1.05rem;letter-spacing:.14em;text-transform:uppercase;color:#f4f4f4}
.logo-text{color:#f4f4f4}
.logo-text em{font-style:normal;color:var(--neon)}
.nav-links{display:flex;gap:1.4rem;list-style:none;flex-wrap:wrap}
.nav-links a{color:#d5d8dc;text-decoration:none;font-weight:700;font-size:.76rem;text-transform:uppercase;letter-spacing:1.6px}
.nav-links a:hover,.nav-links a.active{color:#fff;text-decoration:underline;text-underline-offset:4px}
/* Hero */
.hero{background:radial-gradient(900px 320px at 50% -60px,rgba(255,255,255,.09),transparent 70%),radial-gradient(700px 260px at 85% 0,rgba(255,255,255,.06),transparent 70%),#1e2124;color:#e8eaed;padding:3.4rem 0 2.4rem;text-align:center;border-bottom:1px solid var(--border)}
.hero h1{font-size:2.7rem;font-weight:800;line-height:1.12;letter-spacing:-.5px;margin-bottom:.9rem}
.hero h1 .neon{color:var(--neon)}
.hero h1 .cyber{color:var(--cyber)}
.hero .subtitle{color:#d5d8dc;max-width:780px;margin:0 auto;font-size:1.08rem}
.hero-meta{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap;margin-top:1.2rem}
.hero-meta span{font-size:.74rem;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;border:1px solid var(--border);border-radius:999px;padding:.35rem .9rem;color:#d5d8dc;background:rgba(255,255,255,.05)}
.hero-meta span b{color:#fff}
/* Module tabs (pure anchors, no JS) */
.module-nav{background:#1e2124;border-bottom:1px solid var(--border);position:sticky;top:57px;z-index:90}
.module-nav .container{display:flex;gap:.6rem;flex-wrap:wrap;padding-top:.7rem;padding-bottom:.7rem}
.module-tab{flex:1 1 160px;text-align:center;text-decoration:none;font-size:.76rem;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;border:1px solid var(--border);border-radius:10px;padding:.7rem .6rem;color:#d5d8dc;background:var(--surface)}
.module-tab small{display:block;font-weight:600;letter-spacing:.6px;text-transform:none;color:#c0c4c9;font-size:.74rem;margin-top:.15rem}
.module-tab:hover{border-color:#e8eaed;color:#fff}
.module-tab.tab-overview{border-top:2px solid #e8eaed}
.module-tab.tab-mechanics{border-top:2px solid #d5d8dc}
.module-tab.tab-edge{border-top:2px solid #c0c4c9}
/* Layout */
.content-layout{display:grid;grid-template-columns:1fr 320px;gap:1.5rem;padding-top:1.75rem;padding-bottom:2rem;align-items:start}
.main-content{min-width:0}
/* Module shells */
.module{scroll-margin-top:130px}
.module-kicker{display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:2px;text-transform:uppercase;border:1px solid var(--border);border-radius:999px;padding:.3rem .85rem;margin-bottom:.8rem;background:rgba(255,255,255,.05);color:#e8eaed}
.module-kicker.k-teal{color:#f2f3f5;border-color:rgba(232,234,237,.5)}
.module-kicker.k-blue{color:#dfe2e6;border-color:rgba(213,216,220,.5)}
.module-kicker.k-violet{color:#e8eaed;border-color:rgba(232,234,237,.4)}
.why{border-left:3px solid #e8eaed;padding:.7rem 1rem;background:rgba(255,255,255,.06);border-radius:0 8px 8px 0;margin:1.1rem 0;color:#e8eaed}
.why.blue{border-color:#d5d8dc;background:rgba(255,255,255,.05)}
.why.violet{border-color:#c0c4c9;background:rgba(255,255,255,.04)}
.why strong{display:block;font-size:.74rem;letter-spacing:1.6px;text-transform:uppercase;margin-bottom:.25rem;color:#fff}
/* Content cards */
.external-source{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.25rem;margin-bottom:1.25rem}
.external-source h2{font-size:1.05rem;margin-bottom:.5rem;color:#fff;letter-spacing:.02em}
.external-source h2 .dot{color:#e8eaed}
.source-link{word-break:break-all;font-weight:600;color:#fff}
.source-note{color:var(--text-secondary);margin-top:.6rem}
.source-caption{color:var(--muted);font-size:.85rem;margin-top:.5rem;font-style:italic}
.article{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.5rem;margin-bottom:1.25rem}
.article.glow-teal{box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
.article.glow-blue{box-shadow:inset 0 1px 0 rgba(255,255,255,.1)}
.article.glow-violet{box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.article-header h2{font-size:1.5rem;line-height:1.3;margin-bottom:.35rem;color:#fff;letter-spacing:-.2px}
.article-meta{color:var(--muted);font-size:.76rem;margin-bottom:1rem;text-transform:uppercase;letter-spacing:1.2px;font-weight:600}
.article-content p{margin-bottom:1rem;color:#d9dde1}
.article-content h2{font-size:1.2rem;margin:1.5rem 0 .75rem;color:#fff}
.article-content h2 .neon{color:var(--neon)}
.article-content h2 .cyber{color:var(--cyber)}
.article-content h3{font-size:.95rem;margin:1.25rem 0 .6rem;text-transform:uppercase;letter-spacing:1px;color:#e8eaed}
.article-content img{max-width:100%;height:auto;border-radius:10px;border:1px solid var(--border);margin:1rem 0;display:block;background:#1e2124}
.article-content ul,.article-content ol{margin:0 0 1rem 1.4rem;color:#d9dde1}
.article-content li{margin-bottom:.4rem}
.article-content li::marker{color:#e8eaed}
.article-content blockquote{border-left:3px solid #e8eaed;padding:.8rem 1rem;background:rgba(255,255,255,.06);border-radius:0 8px 8px 0;margin:1.25rem 0;color:#eef2f5;font-style:italic}
/* Grids */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem;margin:1.1rem 0}
.stat{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:.85rem .9rem}
.stat b{display:block;font-size:1.25rem;color:#fff}
.stat b.teal{color:#f2f3f5}
.stat b.blue{color:#dfe2e6}
.stat span{font-size:.78rem;color:#c0c4c9;text-transform:uppercase;letter-spacing:1px}
.tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:.7rem;margin:1.1rem 0}
.tech{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:.9rem 1rem}
.tech h4{font-size:.82rem;text-transform:uppercase;letter-spacing:1.2px;color:#fff;margin-bottom:.35rem}
.tech h4 i{font-style:normal;color:#e8eaed}
.tech p{font-size:.9rem;color:#d5d8dc;margin:0}
table.cyber{width:100%;border-collapse:collapse;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;overflow:hidden;margin:1rem 0;font-size:.9rem}
table.cyber th,table.cyber td{padding:.7rem .8rem;border-bottom:1px solid var(--border);text-align:left;color:#d9dde1}
table.cyber th{background:rgba(255,255,255,.07);color:#fff;font-size:.76rem;text-transform:uppercase;letter-spacing:1px}
.tag-list{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem;margin:0 !important}
.tag-list a{display:inline-block;background:rgba(255,255,255,.07);border:1px solid rgba(232,234,237,.4);padding:.42rem .9rem;border-radius:999px;text-decoration:none;font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:#e8eaed}
.tag-list a:hover{background:rgba(255,255,255,.14);color:#fff}
/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:1rem}
.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.25rem}
.widget h3{font-size:.78rem;margin-bottom:.75rem;text-transform:uppercase;letter-spacing:1.6px;color:#e8eaed;border-bottom:1px solid var(--border);padding-bottom:.55rem}
.widget ul{list-style:none}
.widget li{margin-bottom:.5rem}
.widget a{text-decoration:none;color:#d9dde1;font-size:.9rem}
.widget a:hover{text-decoration:underline;color:#fff}
.toc ol{margin-left:1.1rem;color:#d5d8dc;font-size:.9rem}
.toc li{margin-bottom:.35rem}
/* Footer */
.site-footer{background:#1e2124;color:#c0c4c9;padding:1.6rem 0;margin-top:1rem;font-size:.88rem;border-top:1px solid var(--border)}
.site-footer a{color:#e8eaed;text-decoration:none}
.site-footer a:hover{color:#fff}
.site-footer .container{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
/* Misc */
.noscript-note{background:#fef9c3;border:1px solid #fde68a;padding:.75rem 1rem;text-align:center;font-size:.9rem;color:#422006}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
@media(max-width:900px){
  .content-layout{grid-template-columns:1fr}
  .hero h1{font-size:2rem}
  .stat-grid{grid-template-columns:1fr}
  .tech-grid{grid-template-columns:1fr}
  .site-header .container{flex-direction:column;align-items:flex-start}
  .module-nav{top:0}
}