:root{--ink:#111827;--muted:#64748b;--line:#e5e7eb;--bg:#f8fafc;--card:#fff;--accent:#5b5bd6;--dark:#10111a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:var(--bg)}a{text-decoration:none;color:inherit}.wrap{width:min(1160px,calc(100% - 36px));margin:auto}.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}.brand .muted{font-weight:500;color:#8b91a1}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--dark);color:#fff;display:grid;place-items:center}.nav nav{display:flex;gap:28px;color:#64748b;font-size:14px}.nav-btn,.primary{background:var(--dark);color:#fff;border:0;border-radius:10px;padding:12px 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