:root {
  --ink: #14213d;
  --ink-soft: #3d4a63;
  --paper: #fbfaf7;
  --panel: #ffffff;
  --line: #d9dde5;
  --accent: #1d5c4d;
  --accent-ink: #ffffff;
  --focus: #ffbf47;
  --max: 68rem;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 1.125rem;
  line-height: 1.6;
}

a { color: var(--accent); text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  background: var(--focus);
  color: var(--ink);
}

.skip {
  position: absolute; left: -999px; top: 0;
  padding: 0.75rem 1rem; background: var(--focus); color: var(--ink);
}
.skip:focus { left: 1rem; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1rem; }

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
header.site .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.75rem; padding-top: 1rem; padding-bottom: 1rem;
}
.brand {
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none;
}
.brand svg { flex: none; }
nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 1.25rem; margin: 0; padding: 0; }
nav a { color: var(--ink); text-decoration: none; font-size: 1rem; }
nav a:hover { text-decoration: underline; }

.hero { padding-top: 4rem; padding-bottom: 3rem; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.15; margin: 0 0 1rem;
  max-width: 22ch; letter-spacing: -0.01em;
}
.hero p.lede { font-size: 1.25rem; color: var(--ink-soft); max-width: 40rem; margin: 0 0 2rem; }

.button {
  display: inline-block; padding: 0.8rem 1.25rem; border-radius: 4px;
  background: var(--accent); color: var(--accent-ink); font-weight: 600; text-decoration: none;
}
.button:hover { background: #164a3e; }

section { padding: 3rem 0; border-top: 1px solid var(--line); }
section h2 { font-size: 1.75rem; margin: 0 0 1.5rem; }
section h3 { font-size: 1.2rem; margin: 0 0 0.5rem; }

.grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 1.5rem;
}
.card p { margin: 0; color: var(--ink-soft); }
.card ul { margin: 0.5rem 0 0; padding-left: 1.2rem; color: var(--ink-soft); }

ol.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
ol.steps li {
  counter-increment: step; position: relative; padding-left: 3rem;
}
ol.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 700; font-size: 1rem;
}

dl.facts { display: grid; grid-template-columns: minmax(9rem, max-content) 1fr; gap: 0.5rem 1.5rem; margin: 0; }
dl.facts dt { font-weight: 600; }
dl.facts dd { margin: 0; color: var(--ink-soft); }

.prose { max-width: 44rem; }
.prose h1 { font-size: 2.2rem; line-height: 1.2; margin: 3rem 0 1rem; }
.prose h2 { font-size: 1.4rem; margin: 2rem 0 0.5rem; }

footer.site { border-top: 1px solid var(--line); padding: 2rem 0 3rem; font-size: 0.95rem; color: var(--ink-soft); }
footer.site ul { list-style: none; padding: 0; margin: 0.5rem 0 0; display: flex; flex-wrap: wrap; gap: 1.25rem; }

@media (max-width: 40rem) {
  dl.facts { grid-template-columns: 1fr; }
  dl.facts dd { margin-bottom: 0.5rem; }
  .hero { padding-top: 2.5rem; padding-bottom: 2rem; }
}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }