:root{
  --brand-navy:#173b67;
  --brand-blue:#2563eb;
  --brand-sky:#0ea5e9;
  --brand-green:#16a34a;
  --brand-amber:#f59e0b;
  --brand-slate:#334155;
  --brand-ink:#0f172a;
  --surface:#ffffff;
  --surface-alt:#f8fbff;
  --surface-soft:#eef4ff;
  --text:#111827;
  --text-muted:#5b6574;
  --border:#dde5ef;
  --shadow-lg:0 18px 40px rgba(15,23,42,.08);
  --shadow-sm:0 2px 8px rgba(15,23,42,.04);
  --radius-xl:22px;
  --radius-lg:16px;
  --radius-md:12px;
}
body{font-family:Inter,Arial,sans-serif;color:var(--text)}
h1{font-size:clamp(2rem,3vw,3rem);letter-spacing:-.02em}
h2{font-size:clamp(1.35rem,2vw,2rem);letter-spacing:-.015em}
h3{font-size:clamp(1.05rem,1.5vw,1.25rem)}
.muted{color:var(--text-muted)}
.button-link,.site-header a{font-weight:700}