:root{--bg:#f5f7fb;--card:#fff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--primary:#4452ff;--primary2:#7c3aed;--shadow:0 24px 80px rgba(15,23,42,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at top left,rgba(68,82,255,.16),transparent 34rem),radial-gradient(circle at 85% 0,rgba(124,58,237,.14),transparent 30rem),var(--bg);line-height:1.6}a{color:inherit;text-decoration:none}.container{width:min(1180px,92%);margin:auto}.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.84);backdrop-filter:blur(18px);border-bottom:1px solid 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