:root { --bg:#0f172a; --fg:#e5e7eb; --muted:#94a3b8; --accent:#22d3ee; --card:#111827; }
*{box-sizing:border-box}
body{margin:0;font-family:'Open Sans',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:#0b1220;color:var(--fg);line-height:1.6}
.site-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:rgba(15,23,42,.8);backdrop-filter:blur(8px);position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(148,163,184,.2)}
.brand a{color:var(--fg);text-decoration:none;font-weight:700;letter-spacing:.3px}
.navbar .nav-list{display:flex;gap:14px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.navbar .nav-list a{color:var(--fg);text-decoration:none;padding:8px 10px;border-radius:10px}
.navbar .nav-list a:hover{background:rgba(34,211,238,.12)}
.hero{padding:64px 20px;background:radial-gradient(1200px 400px at 10% -20%,rgba(34,211,238,.15),transparent),radial-gradient(800px 300px at 90% 0%,rgba(139,92,246,.12),transparent)}
.hero-content{max-width:1000px;margin:0 auto;text-align:center}
.hero h1{font-size:clamp(28px,4vw,44px);margin:0 0 8px}
.hero p{color:var(--muted);margin:6px 0}
.author{opacity:.9}
.content{max-width:1050px;margin:30px auto;padding:0 20px}
h2{margin-top:8px}
section{background:rgba(17,24,39,.6);padding:22px;border:1px solid rgba(148,163,184,.15);border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,.25);margin-bottom:24px}
table{width:100%;border-collapse:collapse}
.dataTables_wrapper .dataTables_filter input{background:#0b1220;border:1px solid rgba(148,163,184,.3);color:var(--fg);border-radius:8px;padding:6px}
.formula{font-size:1.05rem;letter-spacing:.1px}
footer{padding:30px 20px;color:var(--muted);text-align:center}