:root{--ink:#1d3557;--accent:#e76f51;--accent-dark:#c9583c;--text:#22303f;--muted:#5d6b7a;--line:#e3e7ec;--bg:#fafaf7;--card:#ffffff;--ok:#1f7a4d;--err:#b3261e}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.55}a,h1,h2,h3{color:var(--ink)}h1,h2,h3{line-height:1.2;margin:0 0 12px}h2{font-size:clamp(24px,3.4vw,34px);text-align:center}p{margin:0 0 12px}.topnav{display:flex;justify-content:space-between;align-items:center;padding:16px clamp(16px,4vw,48px);max-width:1200px;margin:0 auto}.brandmark{font-weight:800;font-size:22px;text-decoration:none;color:var(--ink);letter-spacing:-.02em}.brandmark span{color:var(--accent)}.topnav-links{display:flex;align-items:center;gap:20px;font-size:15px}.topnav-links a:not(.btn){text-decoration:none;color:var(--muted)}.topnav-links 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