:root {
  --purple: #a349a4;
  --ink: #1b1b1d;
  --muted: #5c5c63;
  --rule: #e2e2e6;
  --bg: #ffffff;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

.masthead {
  border-bottom: 3px solid var(--purple);
  padding: 28px 24px 22px;
}

.masthead-inner,
main,
.sitefoot-inner {
  max-width: 660px;
  margin: 0 auto;
}

.masthead img {
  display: block;
  width: 260px;
  max-width: 70%;
  height: auto;
}

main { padding: 40px 24px 64px; }

h1 {
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 4px;
}

.effective {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 36px;
}

h2 {
  font-size: 1.2rem;
  line-height: 1.3;
  margin: 42px 0 10px;
  padding-top: 4px;
}

h3 {
  font-size: 1.02rem;
  margin: 28px 0 6px;
}

p, li { margin: 0 0 14px; }

ul { padding-left: 22px; }

strong { font-weight: 700; }

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 34px 0;
}

a { color: var(--purple); }

a:focus-visible,
.card:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 3px;
}

/* index page */
.lede { color: var(--muted); margin-bottom: 32px; }

.card {
  display: block;
  border: 1px solid var(--rule);
  border-left: 4px solid var(--purple);
  padding: 18px 20px;
  margin-bottom: 14px;
  text-decoration: none;
  color: inherit;
}

.card-title { font-weight: 700; margin: 0 0 4px; }

.card-note { color: var(--muted); font-size: 0.92rem; margin: 0; }

.sitefoot {
  border-top: 1px solid var(--rule);
  padding: 22px 24px 40px;
  color: var(--muted);
  font-size: 0.88rem;
}

.sitefoot p { margin: 0 0 4px; }

@media (max-width: 520px) {
  body { font-size: 16px; }
  h1 { font-size: 1.6rem; }
}