:root {
  --indigo: #26337A;
  --thread: #F08A4B;
  --ink: #16181D;
  --muted: #4A5060;
  --line: #E1E4EA;
  --paper: #FFFFFF;
  --wash: #F4F5F7;
  --link: #26337A;
  --code-bg: #F4F5F7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #E8EAF0;
    --muted: #A3A9B8;
    --line: #2C3140;
    --paper: #12141A;
    --wash: #1A1D26;
    --link: #9FB0FF;
    --code-bg: #1A1D26;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--link); text-underline-offset: 2px; }
a:hover { color: var(--thread); }

header.site, main, footer.site { max-width: 820px; margin: 0 auto; padding: 0 20px; }
header.site {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px 24px; padding-top: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--ink); text-decoration: none; }
.brand img { border-radius: 8px; }
header.site nav { display: flex; flex-wrap: wrap; gap: 4px 20px; }
header.site nav a { color: var(--muted); text-decoration: none; font-size: 15px; padding: 8px 0; }
header.site nav a:hover { color: var(--ink); }

main { padding-top: 32px; padding-bottom: 48px; }
h1, h2, h3, h4 { line-height: 1.25; margin: 1.8em 0 0.6em; }
h1 { font-size: 34px; margin-top: 0.4em; letter-spacing: -0.01em; }
h2 { font-size: 25px; padding-top: 0.6em; border-top: 1px solid var(--line); }
h3 { font-size: 20px; }
.lede { font-size: 20px; color: var(--muted); }

code { font: 0.88em/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; overflow-x: auto; }
pre code { background: none; padding: 0; font-size: 14px; }

table { border-collapse: collapse; width: 100%; display: block; overflow-x: auto; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 8px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }

blockquote { margin: 1em 0; padding: 4px 16px; border-left: 3px solid var(--thread); color: var(--muted); }
.note { background: var(--wash); border-radius: 8px; padding: 14px 18px; }

footer.site { border-top: 1px solid var(--line); padding-top: 20px; padding-bottom: 40px; color: var(--muted); font-size: 14px; }

/* Home page */
.hero { display: flex; align-items: center; gap: 24px; margin-bottom: 8px; }
.hero img { border-radius: 22px; flex: none; }
.hero h1 { font-size: 44px; margin: 0 0 4px; }
.hero .lede { margin: 0; }
@media (max-width: 520px) { .hero { flex-direction: column; align-items: flex-start; } }

.weave { margin: 28px 0; padding: 16px; background: var(--wash); border-radius: 12px; }
.weave svg { display: block; width: 100%; height: auto; }
.weave .warp { stroke: var(--indigo); }
.weave .weft { stroke: var(--thread); }
.weave .label { fill: var(--muted); font: 15px ui-monospace, Menlo, Consolas, monospace; }
.weave figcaption { margin-top: 10px; font-size: 15px; color: var(--muted); }
@media (prefers-color-scheme: dark) { .weave .warp { stroke: #6C7BD6; } }

.points { padding-left: 1.2em; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin-top: 16px; }
.card { display: block; padding: 16px 18px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); text-decoration: none; }
.card:hover { border-color: var(--thread); color: var(--ink); }
.card h3 { margin: 0 0 6px; color: var(--link); }
.card p { margin: 0; font-size: 15px; color: var(--muted); }
:focus-visible { outline: 2px solid var(--thread); outline-offset: 2px; }
.weave .over .cut { stroke: var(--wash); }
.weave .over .top { stroke: var(--thread); }