:root {
  color-scheme: light dark;
  font-family: system-ui, sans-serif;
  line-height: 1.65;
  color: #172b29;
  background: #f5f7f4;
  --accent: #126557;
  --border: #c5d3cd;
}
* { box-sizing: border-box; }
body { max-width: 880px; margin: 0 auto; padding: 0 24px; }
a { color: var(--accent); text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
.skip { position: absolute; top: -100px; }
.skip:focus { top: 8px; background: #f5f7f4; padding: 8px; }
header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding: 28px 0; border-bottom: 1px solid var(--border); }
.brand { font-size: 1.2rem; font-weight: 800; letter-spacing: .12em; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 20px; }
nav a[aria-current] { font-weight: 700; }
main { padding: 48px 0 32px; }
.eyebrow { color: var(--accent); font-size: .85rem; font-weight: 650; letter-spacing: .05em; }
h1 { max-width: 720px; margin: 18px 0 24px; font-size: clamp(2.2rem, 6vw, 3.6rem); line-height: 1.12; letter-spacing: -.04em; }
.intro { font-size: 1.2rem; max-width: 700px; }
section { margin-top: 36px; }
h2 { margin-bottom: 10px; font-size: 1.25rem; line-height: 1.3; }
p { margin-top: 12px; }
code { font-size: .88em; overflow-wrap: anywhere; }
footer { padding: 24px 0 36px; border-top: 1px solid var(--border); font-size: .9rem; }
@media (prefers-color-scheme: dark) {
  :root { color: #e3eee7; background: #14201d; --accent: #8bd5bc; --border: #3f5750; }
  .skip:focus { background: #14201d; }
}
@media (max-width: 480px) {
  body { padding: 0 20px; }
  main { padding-top: 32px; }
  nav { gap: 16px; }
}