:root {
  --paper: #f2f4f1;
  --surface: #ffffff;
  --ink: #0f1b17;
  --muted: #56645e;
  --line: #d6ded9;
  --accent: #0a7a55;
  --accent-soft: #e1f1ea;
  --font-display: "Bricolage Grotesque", "Instrument Sans", system-ui, sans-serif;
  --font-body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-data: "JetBrains Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d1412;
    --surface: #141e1b;
    --ink: #e6eeea;
    --muted: #97a69f;
    --line: #26352f;
    --accent: #34c38f;
    --accent-soft: #15302a;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.7 var(--font-body); -webkit-font-smoothing: antialiased; overflow-wrap: break-word; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: 760px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
header { border-bottom: 1px solid var(--line); padding-top: env(safe-area-inset-top, 0px); }
header .wrap { display: flex; align-items: center; gap: 16px; min-height: 64px; max-width: 1120px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 700 20px/1 var(--font-display); }
.brand svg { width: 28px; height: 28px; }
header nav { margin-left: auto; display: flex; flex-wrap: wrap; gap: 18px; font-size: 14px; }
header nav a { color: var(--muted); text-decoration: none; display: inline-flex; align-items: center; min-height: 40px; }
header nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
main .wrap { padding-block: 56px 72px; }
.eyebrow { font: 600 12px/1 var(--font-data); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
h1, h2 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.015em; line-height: 1.15; text-wrap: balance; }
h1 { font-size: clamp(32px, 5vw, 44px); margin: 14px 0 10px; }
h2 { font-size: 22px; margin: 44px 0 10px; }
p, ul, ol { margin: 0 0 14px; }
li { margin-bottom: 6px; }
.meta { color: var(--muted); font: 400 14px/1.5 var(--font-data); }
.summary { background: var(--accent-soft); border-radius: 14px; padding: 20px 24px; margin: 28px 0 8px; }
.summary p:last-child, .summary ul:last-child { margin-bottom: 0; }
.todo { overflow-wrap: anywhere; background: #fff4d6; color: #5c4400; padding: 0 4px; border-radius: 4px; }
@media (prefers-color-scheme: dark) { .todo { background: #3d3210; color: #f5d983; } }
footer .wrap { padding-block: 32px calc(32px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; max-width: 1120px; }
main table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
@media (max-width: 640px) {
  header .wrap { flex-wrap: wrap; row-gap: 0; padding-top: 6px; }
  .brand { min-height: 48px; }
  header nav { flex: 0 0 calc(100% + 20px); margin: 0 -10px; gap: 0; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  header nav::-webkit-scrollbar { display: none; }
  header nav a { min-height: 44px; padding: 0 10px; white-space: nowrap; }
  main .wrap { padding-block: 32px 48px; }
  h2 { font-size: 20px; margin-top: 36px; }
  .summary { padding: 16px 18px; }
  ul, ol { padding-left: 22px; }
  footer .wrap { padding-block: 24px calc(24px + env(safe-area-inset-bottom, 0px)); }
  footer a { display: inline-flex; align-items: center; min-height: 40px; }
}