:root{
  --bg:#0b1020;--card:#121936;--text:#e7ebff;--muted:#9fb1ff;--accent:#4f7cff;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
.container{max-width:960px;margin:0 auto;padding:16px}
.site-header{background:rgba(255,255,255,0.02);backdrop-filter:saturate(180%) blur(10px);position:sticky;top:0;border-bottom:1px solid rgba(255,255,255,0.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;letter-spacing:.4px;color:#fff;text-decoration:none;font-size:20px}
nav a{color:var(--muted);text-decoration:none;margin-left:12px}
nav a:hover{color:#fff}
.card{background:var(--card);border-radius:16px;padding:18px;box-shadow:0 10px 30px rgba(0,0,0,.25);margin:14px 0}
h1,h2,h3{line-height:1.2;margin:0 0 12px}
h1{font-size:28px}
p{margin:10px 0}
.input, select{width:100%;padding:12px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:#0c1430;color:#fff}
button{padding:12px 14px;border:0;border-radius:12px;background:var(--accent);color:#fff;cursor:pointer;font-weight:600}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.site-footer{border-top:1px solid rgba(255,255,255,.08);margin-top:24px;color:var(--muted)}
.links a{color:var(--muted)}
small, .muted{color:var(--muted)}
code{background:#0c1430;border:1px solid rgba(255,255,255,.15);padding:2px 6px;border-radius:8px}
ul{padding-left:18px}
.success{color:#9df59d}
.warning{color:#ffd38a}
hr{border:0;border-top:1px solid rgba(255,255,255,.12);margin:20px 0}