:root {
  color-scheme: light dark;
  font-family: ui-rounded, "Avenir Next", Avenir, system-ui, sans-serif;
  background: #f7f4ec;
  color: #14251d;
}

* { box-sizing: border-box; }

body {
  background: radial-gradient(circle at 15% 15%, rgba(106, 170, 100, 0.18), transparent 32rem), #f7f4ec;
  margin: 0;
  min-height: 100svh;
  padding: max(28px, env(safe-area-inset-top)) 20px max(40px, env(safe-area-inset-bottom));
}

main {
  background: rgba(255, 253, 247, 0.94);
  border: 1px solid #c9c7bc;
  border-radius: 28px;
  box-shadow: 0 24px 70px rgba(20, 37, 29, 0.12);
  margin: auto;
  max-width: 760px;
  padding: clamp(28px, 6vw, 52px);
}

.site-nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: space-between;
  margin-bottom: 30px;
}

.site-nav .brand {
  color: #14251d;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-nav .links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.site-nav .links a {
  font-size: 14px;
  text-decoration: none;
}

.eyebrow {
  color: #16784d;
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(34px, 8vw, 52px);
  letter-spacing: -0.045em;
  line-height: 1;
  margin: 10px 0 12px;
}

h2 {
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 30px 0 8px;
}

h3 {
  font-size: 17px;
  letter-spacing: -0.01em;
  margin: 20px 0 6px;
}

p,
li {
  color: #526057;
  font-size: 16px;
  line-height: 1.62;
}

ul,
ol { padding-left: 22px; }

li + li { margin-top: 7px; }

a {
  color: #16784d;
  font-weight: 750;
}

.updated {
  font-size: 14px;
  margin-top: 0;
}

.callout {
  background: #edf6ee;
  border: 1px solid #6aaa64;
  border-radius: 18px;
  margin: 24px 0;
  padding: 18px 20px;
}

.callout h2,
.callout h3 { margin-top: 0; }

.callout p:last-child { margin-bottom: 0; }

.button {
  background: #16784d;
  border-radius: 14px;
  color: #fff;
  display: inline-block;
  font-weight: 850;
  padding: 13px 17px;
  text-decoration: none;
}

.help-list {
  border-top: 1px solid #d8d8ce;
  margin-top: 26px;
}

.help-item {
  border-bottom: 1px solid #d8d8ce;
  padding: 6px 0 18px;
}

.page-footer {
  border-top: 1px solid #d8d8ce;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 38px;
  padding-top: 22px;
}

.page-footer a { font-size: 14px; }

@media (max-width: 520px) {
  .site-nav { align-items: flex-start; flex-direction: column; }
  .site-nav .links { gap: 8px 13px; }
}

@media (prefers-color-scheme: dark) {
  :root,
  body {
    background: #0d1712;
    color: #f7f4ec;
  }

  body {
    background: radial-gradient(circle at 15% 15%, rgba(106, 170, 100, 0.16), transparent 32rem), #0d1712;
  }

  main {
    background: rgba(20, 37, 29, 0.96);
    border-color: #48574f;
    box-shadow: none;
  }

  .site-nav .brand { color: #f7f4ec; }
  p,
  li { color: #c4cec8; }
  a,
  .eyebrow { color: #72d8a7; }
  .callout { background: #173b2b; border-color: #58bd8b; }
  .help-list,
  .help-item,
  .page-footer { border-color: #48574f; }
}