/* DarkShield - Dark theme, orange accents */
:root{
  --bg:#0a0b0d;
  --surface:#111318;
  --surface2:#171a20;
  --card:#1a1e25;
  --border:#242a33;
  --border2:#2d3440;
  --text:#e9ecf1;
  --muted:#9aa3b2;
  --dim:#6b7585;
  --orange:#ff6b00;
  --orange2:#ff8c1a;
  --orange-glow:rgba(255,107,0,.18);
  --orange-glow2:rgba(255,107,0,.32);
  --radius:14px;
  --radius-sm:10px;
  --max:1160px;
  --sans:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  --mono:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--orange2);text-decoration:none}
a:hover{color:#ffb25a;text-decoration:underline}
img{max-width:100%;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
.small{font-size:.9rem}
.dim{color:var(--dim)}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,11,13,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-mark{width:40px;height:40px;border-radius:10px;background:#e9ecf1;border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;gap:1px;box-shadow:0 6px 22px var(--orange-glow2);font-weight:800;letter-spacing:.02em;font-size:1.15rem;line-height:1}
.brand-mark svg{width:22px;height:22px}
.brand-name{font-weight:800;letter-spacing:.02em;color:var(--text);font-size:1.15rem}
.brand-sub{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-top:-2px}
.nav{display:flex;gap:22px;align-items:center}
.nav a{color:var(--muted);font-size:.93rem;font-weight:500}
.nav a:hover,.nav a.active{color:var(--text)}
.nav a.cta{background:var(--orange);color:#0a0a0a;padding:8px 16px;border-radius:999px;font-weight:700}
.nav a.cta:hover{background:var(--orange2);color:#000}
.burger{display:none;background:none;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px 10px}
/* hero */
.hero{padding:42px 0 28px;border-bottom:1px solid var(--border);background:
  radial-gradient(700px 380px at 78% -10%, rgba(255,107,0,.14), transparent 60%),
  radial-gradient(900px 500px at -10% 0%, rgba(255,140,26,.07), transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:28px;align-items:center}
.kicker{display:inline-flex;gap:8px;align-items:center;background:var(--surface2);border:1px solid var(--border);color:var(--muted);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;padding:6px 10px;border-radius:999px}
.kicker-dot{width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 10px var(--orange-glow2)}
.hero h1{font-size:2.35rem;line-height:1.12;margin:14px 0 12px;letter-spacing:-.02em}
.hero h1 span{color:var(--orange)}
.hero p{color:var(--muted);font-size:1.06rem;max-width:62ch;margin:0 0 18px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:999px;font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;text-decoration:none}
.btn-primary{background:var(--orange);color:#0a0a0a}
.btn-primary:hover{background:var(--orange2);color:#000;text-decoration:none}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--border2);background:var(--surface2);text-decoration:none}
.hero-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.hero-card-head{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:var(--muted)}
.terminal{padding:14px 16px;font-family:var(--mono);font-size:.82rem;line-height:1.7;color:#cbd5e1;background:#0e1116}
.terminal .g{color:var(--orange2)} .terminal .d{color:var(--dim)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}
.stat{background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:12px;text-align:center}
.stat b{font-size:1.25rem;display:block} .stat span{font-size:.78rem;color:var(--muted)}
/* sections */
.section{padding:28px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
.section-head h2{margin:0;font-size:1.45rem;letter-spacing:-.01em}
.section-head p{margin:0;color:var(--muted);font-size:.92rem}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:border-color .18s,transform .18s}
.card:hover{border-color:var(--border2);transform:translateY(-2px)}
.card-img{height:168px;background:var(--surface2);display:grid;place-items:center;border-bottom:1px solid var(--border);overflow:hidden}
.card-img svg{width:78px;height:78px;opacity:.95}
.card-body{padding:14px 16px 12px;flex:1;display:flex;flex-direction:column}
.badge{font-size:.72rem;letter-spacing:.11em;text-transform:uppercase;color:var(--orange2);font-weight:700}
.card h3{margin:6px 0 6px;font-size:1.02rem;line-height:1.35}
.card h3 a{color:var(--text)}
.card p{color:var(--muted);font-size:.9rem;margin:0 0 10px;flex:1}
.meta{display:flex;gap:10px;align-items:center;color:var(--dim);font-size:.78rem}
.meta span{white-space:nowrap}
.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feature{background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:14px}
.feature h3{margin:0 0 6px;font-size:.98rem}
.feature p{margin:0;color:var(--muted);font-size:.88rem}
/* article */
.breadcrumbs{font-size:.82rem;color:var(--dim);padding:14px 0 0}
.breadcrumbs a{color:var(--muted)}
.article-wrap{max-width:760px;margin:0 auto}
.article-head{padding:18px 0 8px}
.article-head h1{font-size:2rem;line-height:1.2;margin:8px 0 10px;letter-spacing:-.015em}
.article-meta{color:var(--dim);font-size:.85rem;display:flex;gap:12px;flex-wrap:wrap}
.prose{color:#dde3ec}
.prose h2{margin:28px 0 10px;font-size:1.32rem;letter-spacing:-.01em;color:var(--text)}
.prose h3{margin:18px 0 8px;font-size:1.05rem;color:var(--text)}
.prose p{margin:0 0 12px}
.prose ul,.prose ol{margin:0 0 14px 22px}
.prose li{margin:4px 0}
.prose blockquote{border-left:3px solid var(--orange);background:var(--surface2);margin:14px 0;padding:10px 14px;border-radius:0 10px 10px 0;color:var(--muted)}
.prose table{width:100%;border-collapse:collapse;margin:14px 0;background:var(--surface2);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.prose th,.prose td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;font-size:.9rem}
.prose th{background:var(--card);color:var(--text);font-weight:700}
.callout{border:1px solid var(--border);background:var(--surface2);border-radius:12px;padding:14px;margin:16px 0}
.callout strong{color:var(--orange2)}
.toc{background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:14px;margin:16px 0}
.toc b{font-size:.9rem}
.toc ol{margin:8px 0 0 18px}
.toc a{color:var(--muted);font-size:.9rem}
.figure{background:var(--surface2);border:1px solid var(--border);border-radius:12px;overflow:hidden;margin:14px 0}
.figure .cap{padding:10px 12px;font-size:.82rem;color:var(--dim);border-top:1px solid var(--border)}
.related{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:14px}
.related .card-img{height:120px}
/* sidebar layout */
.layout{display:grid;grid-template-columns:1fr 300px;gap:22px}
.sidebar{position:sticky;top:78px;align-self:start;display:flex;flex-direction:column;gap:14px}
.widget{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px}
.widget h3{margin:0 0 8px;font-size:.95rem}
.widget ul{list-style:none;margin:0;padding:0}
.widget li{padding:7px 0;border-bottom:1px solid var(--border);font-size:.9rem}
.widget li:last-child{border:0}
.newsletter input{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text);margin:8px 0}
.newsletter button{width:100%}
/* footer */
.site-footer{margin-top:28px;border-top:1px solid var(--border);background:var(--surface);padding:22px 0 18px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:18px}
.footer-grid h4{margin:0 0 8px;font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.footer-grid a{color:var(--muted);font-size:.9rem}
.footer-grid p{color:var(--muted);font-size:.88rem;margin:0}
.copy{margin-top:16px;padding-top:12px;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:12px;color:var(--dim);font-size:.82rem;flex-wrap:wrap}
/* responsive */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr 1fr}
  .feature-list{grid-template-columns:1fr 1fr}
  .layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;position:absolute;top:60px;right:22px;background:var(--card);border:1px solid var(--border);padding:12px;border-radius:12px;box-shadow:0 12px 30px rgba(0,0,0,.4)}
  .burger{display:inline-flex}
  .grid3,.grid2,.feature-list,.related{grid-template-columns:1fr}
  .hero h1{font-size:1.85rem}
  .footer-grid{grid-template-columns:1fr}
}