:root{
  --bg:#0b0f16;
  --card:#121826;
  --text:#e4e7ec;
  --muted:#9aa4b2;
  --accent:#50c878;
  --link:#7cc5ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1000px;margin:0 auto;padding:1rem}
.site-header{background:rgba(255,255,255,0.02);backdrop-filter: blur(6px);border-bottom:1px solid #1e2635;position:sticky;top:0}
.site-header .brand{font-weight:700;margin-right:1rem;color:var(--text)}
.nav a{margin-right:1rem;opacity:.9}
.nav a:last-child{margin-right:0}
main.container{padding:2rem 1rem}
.card{background:var(--card);border:1px solid #1e2635;border-radius:16px;padding:1.25rem;margin:1rem 0;box-shadow:0 10px 30px rgba(0,0,0,.2)}
.card h2,.card h3{margin-top:0}
.badge{display:inline-block;padding:.2rem .5rem;border:1px solid #2a3448;border-radius:999px;font-size:.8rem;color:var(--muted)}
.grid{display:grid;gap:1rem}
.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
kbd{background:#111826;border:1px solid #232d42;border-radius:6px;padding:.1rem .35rem}
pre,code{background:#0e1422;border:1px solid #1c2437;border-radius:8px;padding:.2rem .4rem}
.site-footer{border-top:1px solid #1e2635;color:var(--muted)}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border:1px solid #1e2635;padding:.5rem;text-align:left}
.note{font-size:.95rem;color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:#07260f;border:none;border-radius:10px;padding:.5rem .8rem;font-weight:600}
.btn:hover{filter:brightness(1.05)}