:root {
  color-scheme: dark;
  --ink: #eef3ed;
  --muted: #aab5aa;
  --line: rgba(238, 243, 237, .16);
  --base: #0d1513;
  --panel: #14231e;
  --accent: #b6e178;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--base); }
body {
  min-height: 100vh;
  margin: 0;
  background: radial-gradient(70% 45% at 88% 4%, #254f3d 0%, transparent 70%), var(--base);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

.site-header, main, footer { max-width: 1120px; margin: 0 auto; padding-left: 32px; padding-right: 32px; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 88px; border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); font-size: 1.25rem; font-weight: 760; letter-spacing: -.04em; text-decoration: none; }
.brand span { color: var(--accent); }
nav { display: flex; gap: 24px; }
nav a { color: var(--muted); font-size: .94rem; text-decoration: none; }
nav a:hover, nav a[aria-current="page"], .back:hover { color: var(--accent); }

main { padding-top: clamp(88px, 14vw, 170px); padding-bottom: 84px; }
.intro { max-width: 850px; }
.eyebrow { margin: 0 0 18px; color: var(--accent); font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1 { max-width: 850px; margin: 0; font-size: clamp(2.8rem, 6.8vw, 6.1rem); letter-spacing: -.065em; line-height: .98; }
.lead { max-width: 620px; margin: 32px 0 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.28rem); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 92px; }
.card { min-height: 220px; padding: 25px; background: rgba(20, 35, 30, .72); border: 1px solid var(--line); border-radius: 3px; }
.card .index { margin: 0; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .78rem; }
.card h2 { margin: 50px 0 8px; font-size: 1.25rem; letter-spacing: -.03em; }
.card p:last-child, .page > p:not(.eyebrow):not(.lead) { color: var(--muted); }
.page { max-width: 850px; min-height: calc(100vh - 174px); }
.page h1 { font-size: clamp(2.6rem, 6vw, 5.2rem); }
.page > p:not(.eyebrow) { max-width: 660px; font-size: 1.05rem; }
.back { color: var(--ink); text-decoration-color: var(--accent); text-underline-offset: 5px; }
footer { display: flex; gap: 22px; padding-top: 28px; padding-bottom: 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
footer span:last-child { margin-left: auto; }

@media (max-width: 680px) {
  .site-header, main, footer { padding-left: 20px; padding-right: 20px; }
  .site-header { min-height: 72px; }
  nav { gap: 17px; }
  main { padding-top: 80px; }
  .grid { grid-template-columns: 1fr; margin-top: 64px; }
  .card { min-height: 150px; }
  .card h2 { margin-top: 28px; }
  footer { flex-wrap: wrap; gap: 8px 18px; }
  footer span:last-child { margin-left: 0; }
}