:root{--bg:#0f1116;--card:#171922;--ink:#e7eaf1;--muted:#b3b8c7;--line:#262a36;--brand:#6aa6ff;--accent:#7cf5b6}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,system-ui,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:20px;top:10px;width:auto;height:auto;background:#fff;color:#000;padding:8px 10px;border-radius:6px}
.site-header{position:sticky;top:0;z-index:10;background:rgba(15,17,22,.8);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:64px}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);text-decoration:none}
.logo-mark{font-size:22px}
.logo-text{letter-spacing:.2px}
.site-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:14px;flex-wrap:wrap}
.site-nav a{color:var(--ink);opacity:.9;padding:6px 8px;border-radius:8px}
.site-nav a.active,.site-nav a:hover{background:#1b1e28}
.nav-toggle{display:none;margin-left:auto;background:#1b1e28;color:var(--ink);border:1px solid #2a2f3d;border-radius:10px;padding:8px 12px}
.hero{background:radial-gradient(1100px 500px at 10% -5%, #22263a, transparent), radial-gradient(900px 500px at 90% -10%, #1a2741, transparent);border-bottom:1px solid var(--line)}
.hero .inner{padding:64px 0 40px;display:grid;grid-template-columns:1.2fr .8fr;gap:28px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px}
h1,h2,h3{line-height:1.25;margin:0 0 10px}
h1{font-size:clamp(28px,4vw,38px)}
h2{font-size:clamp(22px,3vw,28px);margin-top:20px}
.lead{color:var(--muted);font-size:18px}
.section{padding:30px 0;border-bottom:1px solid var(--line)}
.kicker{font-size:12px;text-transform:uppercase;letter-spacing:.14em;color:var(--muted)}
.badge{display:inline-block;background:#1a1f2c;border:1px solid #2a2f3d;border-radius:999px;padding:4px 10px;font-size:12px;color:var(--muted)}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border:1px solid #2a2f3d;padding:10px;text-align:left;vertical-align:top}
.list{margin:8px 0 0 18px}
.list li{margin:6px 0}
.small{color:var(--muted);font-size:13px}
.site-footer{padding:28px 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px;border-top:1px solid var(--line);padding-top:18px}
.foot-nav{list-style:none;margin:0;padding:0}
.foot-nav li{margin:6px 0}
.alert{border-left:4px solid var(--accent);padding:10px 12px;background:#151a20;border:1px solid var(--line);border-radius:12px}
@media (max-width:900px){
  .nav-toggle{display:inline-block}
  .site-nav{display:none}
  .site-nav[aria-expanded="true"]{display:block;position:absolute;top:64px;left:0;right:0;background:#0f1116;border-bottom:1px solid var(--line)}
  .site-nav ul{flex-direction:column;padding:10px 18px}
  .hero .inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}