:root {
  color-scheme: light;
  --paper: #f2eddf;
  --ink: #172019;
  --muted: #5e695f;
  --line: rgba(23, 32, 25, 0.2);
  --night: #111914;
  --signal: #dff25c;
  --coral: #dc5a3f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background:
    linear-gradient(90deg, transparent 39px, rgba(220, 90, 63, 0.1) 40px, transparent 41px),
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(23, 32, 25, 0.05) 40px),
    var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}
a { color: inherit; }
code, pre, .mono, .eyebrow, nav { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.shell { width: min(960px, calc(100% - 36px)); margin: 0 auto; }
header { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; text-decoration: none; }
.brand span, .eyebrow { color: var(--coral); }
nav { display: flex; flex-wrap: wrap; gap: 15px; font-size: 11px; }
nav a { text-decoration: none; }
.hero { padding: 72px 0 45px; }
.eyebrow { font-size: 10px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
h1 { max-width: 780px; margin: 12px 0 18px; font-size: clamp(42px, 8vw, 78px); font-weight: 500; line-height: .94; letter-spacing: -.04em; }
.lead { max-width: 720px; color: var(--muted); font-size: 18px; line-height: 1.6; }
main { padding-bottom: 70px; }
section { margin-top: 24px; border-top: 1px solid var(--line); padding: 34px 0 6px; }
h2 { margin: 0 0 14px; font-size: clamp(27px, 4vw, 40px); font-weight: 500; }
h3 { margin: 0 0 8px; font-size: 19px; }
p, li { line-height: 1.6; }
.muted { color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.card { border: 1px solid var(--line); background: rgba(255,255,255,.42); padding: 21px; }
.card.signal { background: var(--signal); }
.card.dark { background: var(--night); color: #f4f8ef; }
.card ul { margin: 0; padding-left: 20px; }
pre { overflow: auto; margin: 12px 0 0; background: var(--night); color: #eef5eb; padding: 18px; font-size: 12px; line-height: 1.6; white-space: pre; }
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
th, td { border-bottom: 1px solid var(--line); padding: 11px 8px; text-align: left; vertical-align: top; }
th { font: 700 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.callout { border-left: 5px solid var(--coral); background: rgba(220,90,63,.1); padding: 17px; }
.stamp { display: inline-block; border: 1px solid var(--ink); border-radius: 999px; padding: 6px 10px; font: 700 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
footer { border-top: 1px solid var(--line); padding: 28px 0 48px; color: var(--muted); font-size: 12px; }
@media (max-width: 660px) {
  nav { display: none; }
  .hero { padding-top: 48px; }
  .grid { grid-template-columns: 1fr; }
}